cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The role of friendship in the lives of male and female adolescents: does diabetes make a difference?
Creators: name: Helgeson, Vicki
name: Reynolds, Kerry A.
name: Escobar, Oscar
name: Siminerio, Linda
name: Becker, Dorothy
Publisher: name: Carnegie Mellon University
Year: 2007
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: PURPOSE: We examined differences in the nature of friendship between adolescents with diabetes and healthy adolescents. We also examined whether friend support and negative relations with friends were related to health for both groups. METHOD: We interviewed 127 adolescents with diabetes and 129 healthy adolescents on two occasions, separated by one year. We measured aspects of friendship and psychological health among both groups as well as self-care behavior and metabolic control among adolescents with diabetes. We used logistic regression analysis to predict the presence of friends, repeated measures analysis of covariance to predict changes in friendship over time, and hierarchical multiple regression analysis to examine the relations of friendship to psychological health, self-care behavior, and metabolic control. RESULTS: Both groups of adolescents were equally likely to have a best friend and boyfriend/girlfriend, but healthy adolescents were more likely to have an other-gender friend. Adolescents with diabetes and healthy adolescents reported similar levels of friend support, but support increased over the year for healthy girls only. Boys with diabetes had the lowest levels of friend support. Negative relations with friends were inversely related to psychological health and predicted a decline in psychological health over time. Negative relations also predicted poor metabolic control and a deterioration of metabolic control over time. CONCLUSION: There are similarities and differences in the nature of friendship for adolescents with diabetes compared with healthy adolescents. Friendship serves a protective function for psychological health for both groups and has implications for physical health among those with diabetes.
Advances in Visual Simultaneous Localization and Mapping for Precise Lunar Landing
Creators: name: Goulet, Timothy L
Publisher: name: Purdue University Graduate School
Year: 2025
Subjects: classificationCode: 400107
subject: Satellite, space vehicle and missile design and testing

description: This thesis aims to improve visual navigation techniques for lunar landing. A single lidar scan of the lunar surface around a proposed landing site provides a starting point for a map, which is refined in-flight using robocentric square-root EKF-SLAM and square-root EIF-SLAM algorithms. The novel robocentric formulation provides an exact nonlinear relative motion framework between two moving objects, improving the consistency and observability of the filter SLAM approaches. Landmarks are selected for tracking according to a gradient-mapping technique based on the analytical expression of a weighted posterior covariance trace gradient. The robocentric SLAM algorithms with optimal landmark selection method are tested on a simulated lunar south pole descent and landing scenario, which shows excellent performance using only a handful of tracked landmarks. Alongside traditional consistency metrics, filter performance is evaluated with new whitened estimation error vector norm metrics, whose distributions (or approximations of) are derived for use in hypothesis testing. Following these results, avenues for future work are suggested based on the contributions of the thesis.
Rotating Massive Main-Sequence Stars II: Simulating a Population of LMC early B-type Stars as a Test of Rotational Mixing
Creators: name: Brott, Ines
name: Evans, Chris J.
name: Hunter, Ian
name: de Koter, Alex
name: Langer, Norbert
name: Dufton, Philip L.
name: Cantiello, Matteo
name: Trundle, Carrie
name: Lennon, Danny J.
name: de Mink, Selma E.
name: Yoon, Sung-Chul
name: Anders, Peter
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Rotational mixing in massive stars is a widely applied concept, with far reaching consequences for stellar evolution. Nitrogen surface abundances for a large and homogeneous sample of massive B-type stars in the LMC were obtained by the VLT-FLAMES Survey of Massive Stars. This sample is the first covering a broad range of projected stellar rotational velocities, with a large enough sample of high quality data to allow for a statistically significant analysis. We use the sample to provide the first rigorous test of the theory of rotational mixing in massive stars. We calculated a grid of stellar evolution models, using the FLAMES sample to calibrate some of the uncertain mixing processes. We developed a new population-synthesis code, which uses this grid to simulate a large population of stars with masses, ages and rotational velocity distributions consistent with those from the FLAMES sample. The synthesized population is then filtered by the selection effects in the observed sample, to enable a direct comparison between the empirical results and theoretical predictions. Our simulations reproduce the fraction of stars without significant nitrogen enrichment. The predicted number of rapid rotators with enhanced nitrogen is about twice as large as found observationally. Furthermore, a group of stars consisting of slowly rotating, nitrogen-enriched objects and another consisting of rapidly rotating un-enriched objects can not be reproduced by our single-star population synthesis. Additional physical processes appear to be required to understand the population of massive main-sequence stars from the FLAMES sample.We discuss the possible role of binary stars and magnetic fields in the interpretation of our results. We find that the population of slowly rotating nitrogen-enriched stars is unlikely produced via mass transfer and subsequent tidal spin-down in close binary systems
description: Accepted for publication in A&A
Adjoint functor theorems for $\infty$-categories
Creators: name: Nguyen, Hoang Kim
name: Raptis, George
name: Schrade, Christoph
Publisher: name: arXiv
Year: 2018
Subjects: subject: Category Theory (math.CT)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics

description: Adjoint functor theorems give necessary and sufficient conditions for a functor to admit an adjoint. In this paper we prove general adjoint functor theorems for functors between $\infty$-categories. One of our main results is an $\infty$-categorical generalization of Freyd's classical General Adjoint Functor Theorem. As an application of this result, we recover Lurie's adjoint functor theorems for presentable $\infty$-categories. We also discuss the comparison between adjunctions of $\infty$-categories and homotopy adjunctions, and give a treatment of Brown representability for $\infty$-categories based on Heller's purely categorical formulation of the classical Brown representability theorem.
description: v1: 21 pages; v2: updated the references, minor changes; v3: 22 pages, changed the terminology from "final" to "coinitial" functors, added three further Corollaries 4.1.5, 5.1.4 and 5.1.5, additional minor changes, accepted for publication in the Journal of the London Mathematical Society
Inelastic scattering and elastic amplitude in Ising field theory in a weak magnetic field at T>T_c. Perturbative analysis
Creators: name: Zamolodchikov, A.
name: Ziyatdinov, I.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Two-particle scattering in Ising field theory in a weak magnetic field h is studied in the regime T>T_c, using perturbation theory in h^2. We calculate explicitly the cross-section of the process 2->3 to the order h^2. To this order, the corresponding cross-section dominates the total cross-section (the probability of all inelastic processes) at all energies E. We show that at high energies the h^2 term in the total cross-section grows as 16 G_3 h^2 log(E) where G_3 is exactly the third moment of the Euclidean spin-spin correlation function. Going beyond the leading order, we argue that at small h^2 the probability of the 2->2 process decays as E^(-16G_3 h^2) as E->infinity.
description: 20 pages, 3 figures; typos corrected
Brief von Eduard Gans an Leopold Zunz, 08.05.1822
Creators: name: (:Unkn) Unknown
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1822
Subjects: subject: 090

description: Anzeige wegen unentschuldigten Fehlens der Schüler Herrmann und Braunbart im Lateinunterricht
The role of elaborations in learning a skill from an instructional text.
Creators: name: Reder, Lynne M.
name: Charney, Davida H.
name: Morgan, Kim I
Publisher: name: Carnegie Mellon University
Year: 1986
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: In these studies, we examined the role of elaborations for subjects learning a procedural skill (viz., using a personal computer) from an instructional text. In Experiment 1, we compared two sources of elaborations: those provided by the author and those generated by learners while reading. In the latter condition, subjects were given advance information about the tasks they were to perform so that they would generate more specific task-related elaborations while reading. Each source of elaborations facilitated skill performance. This result contrasts with results of the past experiments testing declarative knowledge in which author-provided elaborations were found to hurt performance. In Experiment 2, the author-provided elaborations were classified into those illustrating the syntax of the operating system commands and those explaining basic concepts and their applicability. Syntax elaborations produced significant facilitation for experienced and novice computer users. Concept elaborations produced no reliable improvement.
Interplay of cascaded Raman- and Brillouin-like scattering in nanostructured optical waveguides
Creators: name: Noskov, R. E.
name: Koehler, J. R.
name: Sukhorukov, A. A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We formulate a generic concept of engineering optical modes and mechanical resonances in a pair of optically-coupled light-guiding membranes for achieving cascaded light scattering to multiple Stokes and anti-Stokes orders. By utilizing the light pressure exerted on the webs and their induced flexural vibrations, featuring flat phonon dispersion curve with a non-zero cut-off frequency, we show how to realize exact phase-matching between multiple successive optical side-bands. We predict continuous-wave generation of frequency combs for fundamental and high-order optical modes mediated via backward- and forward-propagating phonons, accompanied by periodic reversal of the energy flow between mechanical and optical modes without using any kind of cavity. These results reveal new possibilities for tailoring light-sound interactions through simultaneous Raman-like intramodal and Brillouin-like intermodal scattering processes.
Adiabatic approximation in the second quantized formulation
Creators: name: Fujikawa, Kazuo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recently there have been some controversies about the criterion of the adiabatic approximation. It is shown that an approximate diagonalization of the effective Hamiltonian in the second quantized formulation gives rise to a reliable and unambiguous criterion of the adiabatic approximation. This is illustrated for the model of Marzlin and Sanders and a model related to the geometric phase which can be exactly diagonalized in the present sense.
description: 16 pages
title: Investigating stimulated luminescence within complex silicates to explore charge mobility and trap distribution
Creators: name: Fitzgerald, Scott K.
Publisher: name: University of Glasgow
Year: 2024

description: The mechanisms behind charge storage and transport within feldspars are of key research interest to explain and model the observed behaviours of irradiated feldspars following stimulation. There is no general consensus on whether infra-red stimulated luminescence (IRSL) in feldspars is due to a single fundamental trap or multiple traps, or whether relaxation mechanisms are tunnelling derived or charge movement through band-tail states and conduction band. 

Four separate investigations, using 22 feldspar samples which were previously used in several studies of feldspar luminescence, from four feldspar families (K-Feldspar, Albite, Plagioclase and Microcline samples as well as the F1 IAEA standard material), have been conducted to examine how post-IRSL phenomena can be used to model charge storage and transportation within the material lattice of feldspars. The investigations included the measurement of both post-IR poststimulation phosphorescence (PSP) and post-IR photo-transferred thermoluminescence (PTTL) at different temperatures and following different stimulation wavelengths to characterise variability in relaxation times on the order of microseconds to minutes. 

This work highlights the intrinsic complexities of the lattices of feldspars, noting that most changes made appeared to have a measurable effect on either the decay lifetimes or the PTTL peak activation energies or lifetimes. This implies that a distribution of trapping systems must exist within the lattice to allow the observed variability in behaviour. The decay lifetimes of the post-IR PSP decay corresponded to the lifetimes of the PTTL peaks, suggesting a relationship between the two phenomena. This was then exploited by first modelling the potential activation energies of PTTL peak lifetimes that were approximately equal to the computed PSP decay component lifetimes at room temperature. A cryogenic investigation then confirmed that these predicted PTTL peaks were observed, for the first time, in feldspars. 

These results demonstrate that, within feldspars, post-IR PTTL and PSP are representative of charge storage in multiple trap systems and transport of charge can be described by band-tail state movement post-stimulation, with no evidence of significant tunnelling.
Cosmological Density Fluctuations in Stochastic Gravity -- Formalism and Linear Analysis --
Creators: name: Urakawa, Yuko
name: Maeda, Kei-ichi
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study primordial perturbations generated from quantum fluctuations of an inflaton based on the formalism of stochastic gravity. Integrating out the degree of freedom of the inflaton field, we analyze the time evolution of the correlation function of the curvature perturbation at tree level and compare it with the prediction made by the gauge-invariant linear perturbation theory. We find that our result coincides with that of the gauge-invariant perturbation theory if the e-folding from the horizon crossing time is smaller than some critical value ($\sim |$slow-roll parameter $|^{-1}$), which is the case for the scales of the observed cosmological structures. However, in the limit of the superhorizon scale, we find a discrepancy in the curvature perturbation, which suggests that we should include the longitudinal part of the gravitational field in the quantization of a scalar field even in stochastic gravity.
description: 14 pages
THE ROLE OF AVAILABILITY IN THE ESTIMATION OF NATIONAL-POPULATIONS
Creators: name: N R BROWN
name: Siegler, Robert
Publisher: name: Carnegie Mellon University
Year: 1992
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: In two parallel experiments, conducted 17 months apart, we examined the relations among population estimates, availability, and media coverage of the 100 countries with populations of 4 million or more. The results were consistent with the main hypothesis, that availability influences population estimates. Specifically, we found that (1) rated knowledge of each country (our measure of availability) was strongly correlated with estimated population for that country; (2) rated knowledge was more strongly correlated with estimated population than were other plausible predictors, such as land area; (3) a strong partial correlation between rated knowledge and estimated population remained even after true population and true land area were partialed out; and (4) longitudinal changes in rated knowledge predicted longitudinal changes in estimated population. Also as hypothesized, media coverage was positively related to availability and to population estimates. Further, we found that population estimates, rated knowledge, and amount of media coverage that each country received were very stable over the year-and-a-half period. These results led us to consider when availability is most likely to be relied upon heavily in quantitative estimation and how it may be integrated with other knowledge to derive quantitative estimates.
Almost sure, L_1- and L_2-growth behavior of supercritical multi-type continuous state and continuous time branching processes with immigration
Creators: name: Barczy, Matyas
name: Palau, Sandra
name: Pap, Gyula
Publisher: name: arXiv
Year: 2018
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J80, 60F15

description: Under a first order moment condition on the immigration mechanism, we show that an appropriately scaled supercritical and irreducible multi-type continuous state and continuous time branching process with immigration (CBI process) converges almost surely. If an $x \log(x)$ moment condition on the branching mechanism does not hold, then the limit is zero. If this $x \log(x)$ moment condition holds, then we prove $L_1$ convergence as well. The projection of the limit on any left non-Perron eigenvector of the branching mean matrix is vanishing. If, in addition, a suitable extra power moment condition on the branching mechanism holds, then we provide the correct scaling for the projection of a CBI process on certain left non-Perron eigenvectors of the branching mean matrix in order to have almost sure and $L_1$ limit. Moreover, under a second order moment condition on the branching and immigration mechanisms, we prove $L_2$ convergence of an appropriately scaled process and the above mentioned projections as well. A representation of the limits is also provided under the same moment conditions.
description: 42 pages
The representation of women in cognition.
Creators: name: Klatzky, Roberta
name: Holt, Lori
name: Behrmann, Marlene
Publisher: name: Carnegie Mellon University
Year: 2015
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: This discussion expresses concerns raised by the representation of women authors in a recent special issue of Cognition dedicated to future trends. Its broader goal is to increase sensitivity to the contributions of female scientists within major journals across psychological science.
High-resolution imaging and near-infrared spectroscopy of penumbral decay
Creators: name: Verma, M.
name: Denker, C.
name: Balthasar, H.
name: Kuckein, C.
name: Rezaei, R.
name: Sobotka, M.
name: Deng, N.
name: Wang, H.
name: Tritschler, A.
name: Collados, M.
name: Diercke, A.
name: Manrique, S. J. González
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Combining high-resolution spectropolarimetric and imaging data is key to understanding the decay process of sunspots as it allows us scrutinizing the velocity and magnetic fields of sunspots and their surroundings. Active region NOAA 12597 was observed on 24/09/2016 with the 1.5-m GREGOR solar telescope using high-spatial resolution imaging as well as imaging spectroscopy and near-infrared (NIR) spectropolarimetry. Horizontal proper motions were estimated with LCT, whereas LOS velocities were computed with spectral line fitting methods. The magnetic field properties were inferred with the SIR code for the Si I and Ca I NIR lines. At the time of the GREGOR observations, the leading sunspot had two light-bridges indicating the onset of its decay. One of the light-bridges disappeared, and an elongated, dark umbral core at its edge appeared in a decaying penumbral sector facing the newly emerging flux. The flow and magnetic field properties of this penumbral sector exhibited weak Evershed flow, moat flow, and horizontal magnetic field. The penumbral gap adjacent to the elongated umbral core and the penumbra in that penumbral sector displayed LOS velocities similar to granulation. The separating polarities of a new flux system interacted with the leading and central part of the already established active region. As a consequence, the leading spot rotated 55-degree in clockwise direction over 12 hours. In the high-resolution observations of a decaying sunspot, the penumbral filaments facing flux emergence site contained a darkened area resembling an umbral core filled with umbral dots. This umbral core had velocity and magnetic field properties similar to the sunspot umbra. This implies that the horizontal magnetic fields in the decaying penumbra became vertical as observed in flare-induced rapid penumbral decay, but on a very different time-scale.
description: 14 pages, 11 figures, Accepted to be published in Astronomy and Astrophysics
Brief von Moses Moser an Gotthold Salomon an Hamburger Spezialverein des Vereins für Cultur und Wissenschaft der Juden, 02.10.1823
Creators: name: (:Unkn) Unknown
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1823
Subjects: subject: 090

description: Begleitschreiben zu Sitzungsprotokoll der Kommission für die Herausgabe einer Bibelübersetzung
Pulsation in pre-main sequence stars: TESS observations & models from accreting protostars
Creators: name: Steindl, Thomas
name: Zwintz, Konstanze
name: Barnes, Thomas
name: Müllner, Marco
name: Vorobyov, Eduard
Publisher: name: Zenodo
Year: 2021
Subjects: Stellar Astrophysics
Asteroseismology
Pre-Main Sequence
MESA

description: Stellar mass is clearly the most important parameter in stellar evolution, governing the entire evolution from the pre-main sequence to the final fate of the star. Despite that, our theoretical stellar models often ignore how stars have obtained their main sequence mass, although it is commonly accepted that the collapse of molecular clouds creates stellar seeds that subsequently accrete material from their surroundings. In this poster, we present calculations of the pre-main sequence evolution starting from the accreting phase. We compare these evolutionary tracks to spectroscopic parameters of young stellar objects and constrain free parameters in the accretion modelling. We investigate the pulsational instability of the calculated pre-main sequence models by calculating instability regions and comparing their positions to a sample of pre-main sequence pulsators. The latter are compiled from the literature and extended by discoveries made from TESS data. Finally, we present the first candidate M-type pulsating star discovered in TESS full-frame images.
description: {"references": ["Aidelman, Y., Cidale, L. S., Zorec, J., & Panei, J. A. 2018, A&A, 610, A30", "Alecian, E., Wade, G. A., Catala, C., et al. 2013, MNRAS, 429, 1001", "Baraffe, I., Chabrier, G., & Gallardo, J. 2009, ApJ, 702, L27", "Da Rio, N., Tan, J. C., Covey, K. R., et al. 2016, ApJ, 818, 59", "Dupret, M. A., Grigahc\u00e8ne, A., Garrido, R., Gabriel, M., & Scuflaire, R. 2005, A&A, 435, 927", "Fairlamb, J. R., Oudmaijer, R. D., Mendigut\u00eda, I., Ilee, J. D., & van den Ancker,M. E. 2015, MNRAS, 453, 976", "Frasca, A., Biazzo, K., Alcal\u00e1, J. M., et al. 2017, A&A, 602, A33", "Guti\u00e9rrez Albarr\u00e1n, M. L., Montes, D., G\u00f3mez Garrido, M., et al. 2020, A&A, 643, A71", "Kunitomo, M., Guillot, T., Takeuchi, T., & Ida, S. 2017, A&A, 599, A49", "Paxton, B., Bildsten, L., Dotter, A., et al. 2011, ApJS, 192, 3", "Paxton, B., Cantiello, M., Arras, P., et al. 2013, ApJS, 208, 4", "Paxton, B., Marchant, P., Schwab, J., et al. 2015, ApJS, 220, 15", "Paxton, B., Schwab, J., Bauer, E. B., et al. 2018, ApJS, 234, 34", "Paxton, B., Smolec, R., Schwab, J., et al. 2019, ApJS, 243, 10", "Rodr\u00edguez-L\u00f3pez, C. 2019, Frontiers in Astronomy and Space Sciences, 6, 76", "Steindl, T., Zwintz, K., Barnes, T. G., M\u00fcllner, M., Vorobyov, E. I. 2021, eprint arXiv:2107.07568 accepted for publication in A&A", "Townsend, R. H. D. & Teitler, S. A. 2013, MNRAS, 435, 3406", "Townsend, R. H. D., Goldstein, J., & Zweibel, E. G. 2018, MNRAS, 475, 879", "Vioque, M., Oudmaijer, R. D., Schreiner, M., et al. 2020, A&A, 638, A21"]}
Molecular gas masses of gamma-ray burst host galaxies
Creators: name: Michałowski, Michał J.
name: Karska, A.
name: Rizzo, J. R.
name: Baes, M.
name: Castro-Tirado, A. J.
name: Hjorth, J.
name: Hunt, L. K.
name: Kamphuis, P.
name: Koprowski, M. P.
name: Krumholz, M. R.
name: Malesani, D.
name: Guelbenzu, A. Nicuesa
name: Rasmussen, J.
name: Rossi, A.
name: Schady, P.
name: Sollerman, J.
name: van der Werf, P.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We obtained CO(2-1) observations of seven GRB hosts with the APEX and IRAM 30m telescopes. We analysed these data together with all other hosts with previous CO observations. We obtained detections for 3 GRB hosts (980425, 080207, and 111005A) and upper limits for the remaining 4 (031203, 060505, 060814, and 100316D). In our entire sample of 12 CO-observed GRB hosts, 3 are clearly deficient in molecular gas, even taking into account their metallicity (980425, 060814, and 080517). Four others are close to the best-fit line for other star-forming galaxies on the SFR-MH2 plot (051022, 060505, 080207, and 100316D). One host is clearly molecule rich (111005A). Finally, the data for 4 GRB hosts are not deep enough to judge whether they are molecule deficient (000418, 030329, 031203, and 090423). The median value of the molecular gas depletion time, MH2/SFR, of GRB hosts is ~0.3 dex below that of other star-forming galaxies, but this result has low statistical significance. A Kolmogorov-Smirnov test performed on MH2/SFR shows an only ~2sigma difference between GRB hosts and other galaxies. This difference can partly be explained by metallicity effects, since the significance decreases to ~1sigma for MH2/SFR versus~metallicity. We found that any molecular gas deficiency of GRB hosts has low statistical significance and that it can be attributed to their lower metallicities; and thus the sample of GRB hosts has molecular properties that are consistent with those of other galaxies, and they can be treated as representative star-forming galaxies. Given the concentration of atomic gas recently found close to GRB and supernova sites, indicating recent gas inflow, our results about the weak molecular deficiency imply that such an inflow does not enhance the SFRs significantly, or that atomic gas converts efficiently into the molecular phase, which fuels star formation.
description: Published in A&A. 12 pages, 5 figures, 4 tables
title: A novel screen to understand preDC migration and improve recruitment to the tumour microenvironment
Creators: name: Shergold, Amy Lee
Publisher: name: University of Glasgow
Year: 2024

description: Classical dendritic cells (cDCs) are a rare, but vital, component of the tumour microenvironment (TME). Their presence improves prognosis and response to current immunotherapies. Although therapeutics have been developed to increase cDC development, and thus their abundance in the tumour, we aimed to understand if cDCs could be induced to specifically infiltrate the TME instead of increasing their numbers systemically. Thus, we set out to investigate if tissue specific signals were involved in the recruitment of cDC precursors.

Precursors of cDC (preDCs) are a heterogeneous group that differentiate in the bone marrow. In the periphery, pre-cDC1s develop into cDC1s and pre-cDC2 into cDC2s, respectively. To infiltrate these tissues, preDCs must migrate through the blood to peripheral tissues but the signals controlling tissue recruitment are unknown, including whether both subsets respond to common factors and if there exist tissue-specific controls. Understanding preDC recruitment will allow us to understand cDC development as well as exploit means to manipulate their seeding in the periphery. This manipulation has the potential to improve cDC infiltration in the tumour microenvironment with potential therapeutic benefit.

Here we present evidence that preDC subsets express distinct chemokine receptors and respond to different chemokine signals in the TME. Additionally, we provide a universal assay that can be used to measure the migration of all immune cells that arise from haematopoiesis to all peripheral tissues and during multiple contexts. With this assay we have unpicked which chemokine receptors are involved in the tissue specific seeding of preDCs peripherally, including subcutaneous tumours.

Thus, this project has contributed to the knowledge of how cDC infiltration is controlled and identified means to exploit their migration patterns.
Geometry and Combinatorics of Crystal Melting
Creators: name: Yamazaki, Masahito
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Combinatorics (math.CO)
subject: Probability (math.PR)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 14N35, 05A15, 15B52

description: We survey geometrical and especially combinatorial aspects of generalized Donaldson-Thomas invariants (also called BPS invariants) for toric Calabi-Yau manifolds, emphasizing the role of plane partitions and their generalizations in the recently proposed crystal melting model. We also comment on equivalence with a vicious walker model and the matrix model representation of the partition function.
description: 21 pages, 6 figures, to appear in RIMS Kokyuroku Bessatsu, based on a talk at "Developments in Quantum Integrable Systems," RIMS, Kyoto University, June 2010; v2: typos corrected
$N$-detachable pairs in 3-connected matroids I: unveiling $X$
Creators: name: Brettell, Nick
name: Whittle, Geoff
name: Williams, Alan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05B35

description: Let $M$ be a 3-connected matroid, and let $N$ be a 3-connected minor of $M$. We say that a pair $\{x_1,x_2\} \subseteq E(M)$ is $N$-detachable if one of the matroids $M/x_1/x_2$ or $M \backslash x_1 \backslash x_2$ is both 3-connected and has an $N$-minor. This is the first in a series of three papers where we describe the structures that arise when it is not possible to find an $N$-detachable pair in $M$. In this paper, we prove that if $M$ has no $N$-detachable pairs, then either $M$ has a 3-separating set, which we call $X$, with certain strong structural properties, or $M$ has one of three particular 3-separators that can appear in a matroid with no $N$-detachable pairs.
description: 48 pages, 8 figures
title: ADCO, Cartulaire de l'abbaye de Saint-Seine (XIIIe siècle), Cart. 165 (10 H 6, ms. 139), 354 pages, f. 0011
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2009
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Cartulaire de l'abbaye de Saint-Seine (XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 165 (10 H 6, ms. 139), 354 pages, f. 0011, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de l'abbaye de Saint-Seine (XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 165 (10 H 6, ms. 139), 354 pages, f. 0011, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Saint-Seine
description: Provenance: http://www.wikidata.org/entity/Q2820709
Kardar-Parisi-Zhang universality in the phase distributions of one-dimensional exciton-polaritons
Creators: name: Squizzato, Davide
name: Canet, Léonie
name: Minguzzi, Anna
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Exciton-polaritons under driven-dissipative conditions exhibit a condensation transition which belongs to a different universality class than equilibrium Bose-Einstein condensates. By numerically solving the generalized Gross-Pitaevskii equation with realistic experimental parameters, we show that one-dimensional exciton-polaritons display fine features of Kardar-Parisi-Zhang (KPZ) dynamics. Beyond the scaling exponents, we show that their phase distribution follows the Tracy-Widom form predicted for KPZ growing interfaces. We moreover evidence a crossover to the stationary Baik-Rains statistics. We finally show that these features are unaffected on a certain timescale by the presence of a smooth disorder often present in experimental setups.
description: 4 pages, 4 figures
The Removal of Binocular Cues Disrupts the Calibration of Grasping in Patients with Visual Form Agnosia
Creators: name: J. J. Marotta
name: Behrmann, Marlene
name: M. A. Goodale
Publisher: name: Carnegie Mellon University
Year: 1997
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: The present study tested the idea that the visuomotor systems mediating prehension do not have independent access to pictorial cues processed by perceptual mechanisms. Individuals with visual form agnosia, whose perceptual systems are compromised but who have intact visuomotor control, were examined to determine whether they could use pictorial scene cues to calibrate manual prehension when binocular information was removed. The removal of binocular cues produced considerable disruptions in size-constancy of grip aperture, which, combined with earlier observations in normal subjects, suggests that binocular cues are of primary importance in calibration of grasping. In the absence of binocular vision, normal subjects can use pictorial information, information that is severely compromised in individuals with visual form agnosia, to compute the distance (and thus the size) of the goal object. Thus, individuals with visual form agnosia must rely on a retinal image that remains uncalibrated, leading to inaccurate calibrations of grip aperture. The fact that these individuals scaled their grasp much less accurately under the monocular viewing condition, despite showing normal binocular grasping, suggests that pictorial cues to depth, which are presumably processed by mechanisms mediating our perception of objects and events in the world, can be accessed by visuomotor mechanisms only indirectly. These results, together with others, suggest that the visuomotor system ‘prefers’ to use binocular information and uses pictorial cues only as a last resort.
Brief von Städtische Schuldeputation (Berlin) an Leopold Zunz, 26.01.1849
Creators: name: (:Unkn) Unknown
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1849
Subjects: subject: 090

description: Einladung zu Gespräch (wahrscheinlich über das Jüdische Schullehrerseminar)
Numerical study of the thermodynamics of clinoatacamite
Creators: name: Khatami, Ehsan
name: Helton, Joel S.
name: Rigol, Marcos
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the thermodynamic properties of the clinoatacamite compound, Cu_2(OH)_3Cl, by considering several approximate models. They include the Heisenberg model on (i) the uniform pyrochlore lattice, (ii) a very anisotropic pyrochlore lattice, and (iii) a kagome lattice weakly coupled to spins that sit on a triangular lattice. We utilize the exact diagonalization of small clusters with periodic boundary conditions and implement a numerical linked-cluster expansion approach for quantum lattice models with reduced symmetries, which allows us to solve model (iii) in the thermodynamic limit. We find a very good agreement between the experimental uniform susceptibility and the numerical results for models (ii) and (iii), which suggests a weak ferromagnetic coupling between the kagome and triangular layers in clinoatacamite. We also study thermodynamic properties in a geometrical transition between a planar pyrochlore lattice and the kagome lattice.
description: 7 pages, 7 figures
Efficient Charge-Spin Conversion and Magnetization Switching though Rashba Effect at Topological Insulator/Ag Interface
Creators: name: Shi, Shuyuan
name: Wang, Aizhu
name: Wang, Yi
name: Ramaswamy, Rajagopalan
name: Shen, Lei
name: Moon, Jisoo
name: Zhu, Dapeng
name: Yu, Jiawei
name: Oh, Seongshik
name: Feng, Yuanping
name: Yang, Hyunsoo
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report the observation of efficient charge-to-spin conversion in the three-dimensional topological insulator (TI) Bi2Se3 and Ag bilayer by the spin-torque ferromagnetic resonance technique. The spin orbit torque ratio in the Bi2Se3/Ag/CoFeB heterostructure shows a significant enhancement as the Ag thickness increases to ~2 nm and reaches a value of 0.5 for 5 nm Ag, which is ~3 times higher than that of Bi2Se3/CoFeB at room temperature. The observation reveals the interfacial effect of Bi2Se3/Ag exceeds that of the topological surface states (TSS) in the Bi2Se3 layer and plays a dominant role in the charge-to-spin conversion in the Bi2Se3/Ag/CoFeB system. Based on the first-principles calculations, we attribute our observation to the large Rashba-splitting bands which wrap the TSS band and has the same net spin polarization direction as TSS of Bi2Se3. Subsequently, we demonstrate for the first time the Rashba induced magnetization switching in Bi2Se3/Ag/Py with a low current density of 5.8 X 10^5 A/cm2.
The Relationship of Three Cortical Regions to an Information-Processing Model
Creators: name: Anderson, John R.
name: Yulin  Qin
name: V Andrew  Stenger
name: Carter, Cameron S
Publisher: name: Carnegie Mellon University
Year: 2004
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: This research tests a model of the computational role of three cortical regions in tasks like algebra equation solving. The model assumes that there is a left parietal region-of-interest (ROI) where the problem expression is represented and transformed, a left prefrontal ROI where information for solving the task is retrieved, and a motor ROI where hand movements to produce the answer are programmed. A functional magnetic resonance imaging (fMRI) study of an abstract symbolmanipulation task was performed to articulate the roles of these three regions. Participants learned to associate words with instructions for transforming strings of letters. The study manipulated the need to retrieve these instructions, the need to transform the strings, and whether there was a delay between calculation of the answer and the output of the answer. As predicted, the left parietal ROI mainly reflected the need for a transformation and the left prefrontal ROI the need for retrieval. Homologous right ROIs showed similar but weaker responses. Neither the prefrontal nor the parietal ROIs responded to delay, but the motor ROI did respond to delay, implying motor rehearsal over the delay. Except for the motor ROI, these patterns of activity did not vary with response hand. In an ACT-R model, it was shown that the activity of an imaginal buffer predicted the blood oxygen level-dependent (BOLD) response of the parietal ROI, the activity of a retrieval buffer predicted the response of the prefrontal ROI, and the activity of a manual buffer predicted the response of the motor ROI.
title: Using Virtual Reality to explore individual differences in perception due to neurodiversity
Creators: name: Savickaite, Sarune
Publisher: name: University of Glasgow
Year: 2024

description: The aim of this thesis is to contribute to our understanding of individual differences in visual perception, specifically in autistic and ADHD traits as well as associated diagnosed groups; and explore the use of Virtual Reality (VR) environments to enhance communication and creative expression for these individuals. The thesis begins by introducing autism and ADHD, emphasizing the perceptual differences associated with the conditions. It also highlights the importance of a person-centric approach in research and introduces the use of drawing as a research method, as it allows the capture of subjective experiences. We do so to better understand how VR as a research platform can help us study individual differences. Previous research neglects perceptual and cognitive aspects of neurodivergence in VR research and lacks clear systemized, theoretical and methodological standards; as we demonstrate in three consecutive literature reviews on VR applications in autism research. Using mixed methods and arts-based research we provide a more comprehensive understanding of the topic. Feasibility studies investigate perceptual differences in local and global processing, using the Rey Osterrieth Complex Figure (ROCF) task and free drawing. We demonstrate a link between attention-related traits and performance on visual tasks, such as ROCF. Moreover, we introduce novel methodology for evaluating two-dimensional and three-dimensional drawings and triangulating this information with qualitative thematic analysis. Furthermore, our free drawing task reveals that simplistic immersive virtual environments are viewed favorably by autistic individuals, and participants often share their thought processes spontaneously, potentially suggesting reduction in the power imbalance between the researchers and the participants. The significance of this study is that we provide evidence for the feasibility of a new methodological approach (drawing in VR) to understand perceptual differences associated with neurodiversity.
LDA+Slave-Boson approach to the correlated electronic structure of the metamagnetic bilayer ruthenate Sr$_3$Ru$_2$O$_7$
Creators: name: Piefke, Christoph
name: Lechermann, Frank
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The combination of the local-density approximation (LDA) with the rotationally invariant slave-boson theory (RISB) is used to investigate the realistic correlated electronic structure of Sr$_3$Ru$_2$O$_7$. From Wannier-downfolding the low-energy band structure to a three-band model for the Ru($t_{2g}$) states, the interacting problem is solved including intra- and inter-orbital Hubbard terms as well as spin-flip and pair-hopping interactions. Therewith it is possible to obtain valuable insight into the orbital occupations, relevant local spin multiplets and the fermiology with increasing correlation strength. Besides generic correlation-induced band-narrowing and -shifting, an intriguing quasiparticle structure close to the Fermi level is found in the neigborhood of the notorious $γ_2$ pocket in the Brillouin zone. Along the $Γ$$-$$X$ direction in {\bf k}-space, that structure appears very sensitive to electronic self-energy effects. The subtle sensitivity, connected also its manifest multi-orbital character, may put this very low-energy structure in context with the puzzling metamagnetic properties of the compound.
description: reference added, published version
Robust Subspace Clustering with Compressed Data
Creators: name: Liu, Guangcan
name: Zhang, Zhao
name: Liu, Qingshan
name: Xiong, Kongkai
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Dimension reduction is widely regarded as an effective way for decreasing the computation, storage and communication loads of data-driven intelligent systems, leading to a growing demand for statistical methods that allow analysis (e.g., clustering) of compressed data. We therefore study in this paper a novel problem called compressive robust subspace clustering, which is to perform robust subspace clustering with the compressed data, and which is generated by projecting the original high-dimensional data onto a lower-dimensional subspace chosen at random. Given only the compressed data and sensing matrix, the proposed method, row space pursuit (RSP), recovers the authentic row space that gives correct clustering results under certain conditions. Extensive experiments show that RSP is distinctly better than the competing methods, in terms of both clustering accuracy and computational efficiency.
Improved Constraints on the Acceleration History of the Universe and the Properties of the Dark Energy
Creators: name: Daly, Ruth A.
name: Djorgovski, S. G.
name: Freeman, Kenneth A.
name: Mory, Matthew P.
name: O'Dea, C. P.
name: Kharb, P.
name: Baum, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We extend and apply a model-independent analysis method developed earlier by Daly & Djorgovski to new samples of supernova standard candles, radio galaxy and cluster standard rulers, and use it to constrain physical properties of the dark energy as functions of redshift. Similar results are obtained for the radio galaxy and supernova data sets. The first and second derivatives of the distance are compared directly with predictions in a standard model based on General Relativity. The good agreement indicates that General Relativity provides an accurate description of the data on look-back time scales of about ten billion years. The first and second derivatives are combined to obtain the acceleration parameter, assuming only the validity of the Robertson-Walker metric, independent of a theory of gravity and of the physical nature of the dark energy. The acceleration of the universe at the current epoch is indicated by the analysis. The effect of non-zero space curvature on q(z) is explored. We solve for the pressure, energy density, equation of state, and potential and kinetic energy of the dark energy as functions of redshift assuming that General Relativity is the correct theory of gravity, and the results indicate that a cosmological constant in a spatially flat universe provides a good description of each of these quantities over the redshift range from zero to about one. We define a new function, the dark energy indicator, in terms of the first and second derivatives of the coordinate distance and show how this can be used to measure deviations of w from -1 and to obtain a new and independent measure of Omega.
description: 46 pages, submitted for publication