cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Marsquake Activity driven by the Sun?
Creators: name: Knapmeyer, Martin
name: Stähler, S.
name: Daubar, I.
name: Forget, F.
name: Spiga, A.
name: Pierron, T.
name: van Driel, M.
name: Bandfield, D.
name: Hauber, E.
name: Grott, M.
name: Müller, N.
name: Perrin, C.
name: Jacob, A.
name: Lucas, A.
name: Knapmeyer-Endrun, B.
name: Newman, C.
name: Panning, M.P.
name: Weber, R.C.
name: Calef, F.J.
name: Böse, M.
name: Ceylan, S.
name: Charalambous, C.
name: Clinton, J.
name: Giardini, D.
name: Horleston, A.
name: Kawamura, T.
name: Khan, A.
name: Lemmon, M.
name: Lorenz, R.
name: Pike, W.T.
name: Scholz, J.-R.
name: Lognonne, P.
name: Banerdt, B.
Publisher: name: Zenodo
Year: 2021
Subjects: Mars
InSight
SEIS
seismicity
High Frequency Event
2.4 Hz Event
seasonality

description: Abstract submitted to the 52nd Lunar and Planetary Science Conference, virtual conference from 15. to 19. March 2021. Our work analyzes the detecton rate of High Frequency marsquakes (i.e. marsquakes with high frequency energy content), which varies over time more than can be explained by the variation of wind-induced background noise.
description: This abstract is superseded by a paper submitted to EPSL. The submitted version is accessible under http://doi.org/10.5281/zenodo.4542706. The results shown in this abstract are flawed by a bracketing error in the implementation of eq. 1 of the paper, which effectively makes some regions of the parameter space inaccessible. Fixing this resulted in a certain shift of the resulting evidence ratios, and also changed the ranking of tested models.
Cyclotron Resonance study of the electron and hole velocity in graphene monolayers
Creators: name: Deacon, R. S.
name: Chuang, K-C.
name: Nicholas, R. J.
name: Novoselov, K. S.
name: Geim, A. K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report studies of cyclotron resonance in monolayer graphene. Cyclotron resonance is detected using the photoconductive response of the sample for several different Landau level occupancies. The experiments measure an electron velocity at the K- (Dirac) point of $c_{K}^{*}$ = 1.093 x 10$^{6}$ ms$^{-1}$ and in addition detect a significant asymmetry between the electron and hole bands, leading to a difference in the electron and hole velocities of 5% by energies of 125 meV away from the Dirac point.
Characterization of the Caenorhabditis elegans var. Bristol (strain N2) Tc1 elements and related transposable elements in Caenorhabditis briggsae
Creators: name: Harris, Linda Janice
Publisher: name: University of British Columbia
Year: 2010

description: The regulation and evolution of the inverted repeat transposable element Tel, found in the nematode Caenorhabditis elegans, was studied. The stability of Tel elements in the N2 strain genome was investigated by cloning seventeen N2 Tel elements. To examine their structural integrity, sixteen cloned N2 Tel elements were restriction mapped and, in the case of some variants, their DNA was partially sequenced. Two restriction site variants, Tcl(Eco).12 and Tcl(Hpa-).9, were found. Tel(1.5).10b had lost 89 bp from one end, while Tcl(1.7).28 contained a 55 bp insertion. Two additional elements, Tcl(0.9).2 and Tcl(0.9).14, had different internal deletions. Each element was about 900 bp in length. The majority of Tel elements cloned from the N2 strain were found to have identical restriction maps. Somatic excision of Tel elements in the N2 genome was demonstrated. Tel elements in N2 are apparently both structurally and functionally intact. Nevertheless, mobilization of Tel elements in the N2 germline is restricted. Two new transposable element families, Barney (also known as TCbl) and TCb2, were discovered in a closely related nematode, Caenorhabditis briggsae due to Tel identity. These two families, distinguished through differential inter-element hybridization, showed multiple banding differences between strains. The open reading frames (ORFs) of Tel and Barney share 71% DNA sequence and 74% amino acid sequence identity. The putative terminus of Barney exhibits 68% identity with the 54 bp terminal repeat of Tel. Partial sequencing of TCb2 revealed that its ORF is equally diverged from Barney and Tel. The basis of the sequence heterogeneity observed in the C. briggsae transposons and not in the C. elegans transposons could be due to either horizontal transfer or alternate paths of divergence. Significant sequence identity was found between Tel, Barney, and HB1 (a transposable element from Drosophila melanogaster) within their coding regions and terminal repeats. These sequence similarities define a subclass of inverted repeat transposable elements inhabiting two different phylla, Arthropoda and Nematoda.
Percolation and Loop Statistics in Complex Networks
Creators: name: Noh, Jae Dong
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Complex networks display various types of percolation transitions. We show that the degree distribution and the degree-degree correlation alone are not sufficient to describe diverse percolation critical phenomena. This suggests that a genuine structural correlation is an essential ingredient in characterizing networks. As a signature of the correlation we investigate a scaling behavior in $M_N(h)$, the number of finite loops of size $h$, with respect to a network size $N$. We find that networks, whose degree distributions are not too broad, fall into two classes exhibiting $M_N(h)\sim ({constant})$ and $M_N(h) \sim (\ln N)^ψ$, respectively. This classification coincides with the one according to the percolation critical phenomena.
description: 4 pages and 2 figures; A major revision has been made
SUMMER SCHOOL-CIBO: LA VITA CONDIVISA
Creators: name: Fossati, Paola
Publisher: name: Rassegna di Diritto, Legislazione e Medicina Legale Veterinaria
Year: 2019

description: Editorial
description: Rassegna di Diritto, Legislazione e Medicina Legale Veterinaria, V. 17, N. 4 (2018): MONOGRAFIA
SPECISMO:  STORIA (FILOSOFICA) DI UN NEOLOGISMO
Creators: name: Damonte, Marco
Publisher: name: Rassegna di Diritto, Legislazione e Medicina Legale Veterinaria
Year: 2019

description: The term "speciesism" has become in common use, both in current language and in the literature for the protection of animals. However, with a careful analysis of the variety of definitions offered in many dictionaries and encyclopedias of the sector, it emerges that its meaning is not always univocal. This neologism thus appears to be both indispensable and ambiguous. To make it clearer, I propose to study its genesis and historical development. The word speciesism was invented by the psychologist Thomas Ryder in the early Seventies of the last century, in the context of the Oxford Group and was later philosophically accredited by Peter Singer. Its value varies from being a psychological expedient useful to ask questions about the opportunity to protect animals, to indicate a prejudice or discrimination towards animals that have to be overcome, to propose an animalistic ethics of utilitarian matrix and consequentialist based on a questionable interpretation of Bentham that insists on the evaluation of pain at the expense of the role of compassion. I will conclude by showing how speciesism has had a determining historical role, but today it is no longer the only strategy to protect animals, nor the most convincing, also in light the of recent legislation.
description: Rassegna di Diritto, Legislazione e Medicina Legale Veterinaria, V. 17, N. 4 (2018): MONOGRAFIA
Out-of-phase few-cycle solitons in multicore fibers
Creators: name: Skobelev, S. A.
name: Balakin, A. A.
name: Anashkina, E. A.
name: Andrianov, A. V.
name: Litvak, A. G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: An equation is derived for analyzing the self-action of a wave packets with few optical cycles in multicore fibers (MCF). A new class of stable out-of-phase spatio-temporal solitons with few cycle durations in the MCF with cores located in a ring is found and analyzed. The stability boundary of the obtained solutions is determined. As an example of using such solitons, we considered the problem of their self-compression in the process of multisoliton dynamics in the MCF. The formation of laser pulses with a duration of few optical cycles at the output of a ten-core MCF is shown.
TF-IDF vs Word Embeddings for Morbidity Identification in Clinical Notes: An Initial Study
Creators: name: Dessi, Danilo
name: Helaoui, Rim
name: Kumar, Vivek
name: Recupero, Diego Reforgiato
name: Riboni, Daniele
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Today, we are seeing an ever-increasing number of clinical notes that contain clinical results, images, and textual descriptions of patient's health state. All these data can be analyzed and employed to cater novel services that can help people and domain experts with their common healthcare tasks. However, many technologies such as Deep Learning and tools like Word Embeddings have started to be investigated only recently, and many challenges remain open when it comes to healthcare domain applications. To address these challenges, we propose the use of Deep Learning and Word Embeddings for identifying sixteen morbidity types within textual descriptions of clinical records. For this purpose, we have used a Deep Learning model based on Bidirectional Long-Short Term Memory (LSTM) layers which can exploit state-of-the-art vector representations of data such as Word Embeddings. We have employed pre-trained Word Embeddings namely GloVe and Word2Vec, and our own Word Embeddings trained on the target domain. Furthermore, we have compared the performances of the deep learning approaches against the traditional tf-idf using Support Vector Machine and Multilayer perceptron (our baselines). From the obtained results it seems that the latter outperforms the combination of Deep Learning approaches using any word embeddings. Our preliminary results indicate that there are specific features that make the dataset biased in favour of traditional machine learning approaches.
description: 12 pages, 2 figures, 2 tables, SmartPhil 2020-First Workshop on Smart Personal Health Interfaces, Associated to ACM IUI 2020
Integral representation for three-loop banana graph
Creators: name: Bezuglov, M. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It has recently been shown that two-loop kite-type diagrams can be computed analytically in terms of iterated integrals with algebraic kernels. This result was obtained using a new integral representation for two-loop sunset subgraphs. In this paper, we have developed a similar representation for a three-loop banana integral in $d = 2-2\varepsilon$ dimensions. This answer can be generalized up to any given order in the $\varepsilon$-expansion and can be calculated numerically both below and above the threshold. We also demonstrate how this result can be used to compute more complex three-loop integrals containing the three-loop banana as a subgraph.
description: 17 pages, 9 figures, references added
A Holistic Approach to Enhanced Security and Privacy in Digital Health Passports
Creators: name: Frederiksen, Tore Kasper
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: As governments around the world decide to deploy digital health passports as a tool to curb the spread of Covid-19, it becomes increasingly important to consider how these can be constructed with privacy-by-design. In this paper we discuss the privacy and security issues of common approaches for constructing digital health passports. We then show how to construct, and deploy, secure and private digital health passports, in a simple and efficient manner. We do so by using a protocol for distributed password-based token issuance, secret sharing and by leveraging modern smart phones' secure hardware. Our solution only requires a constant amount of asymmetric cryptographic operations and a single round of communication between the user and the party verifying the user's digital health passport, and only two rounds between the user and the server issuing the digital health passport.
description: 21 pages, to be published at the IWAPS workshop in connection with the ARES conference 2021
Effect of abattoir activities on the quality of water and surrounding soil of the Anwai River in Asaba, Nigeria
Creators: name: Fatunsin, OT
name: Enenya, IG
name: Ebomese, P
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Space Science
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology

description: The Anwai River is the most important river in Asaba, Nigeria, because of its many uses, and these include abattoir activities. The aim of this study was to assess the surface water and surrounding soil of the Anwai River for the effects of abattoir activities during the wet and dry seasons of 2020. The quality of soil and water samples was analysed using standard procedures as set by the American Public Health Association. Results of water analyses showed that pH, total dissolved solids and total suspended solids varied from 6.45 to 6.67, 13.50 mg L−1 to 24.42 mg L−1, and 2.19 ± 0.04 mg L−1 to 10.79 mg L−1, respectively. Soil pH, total organic content, Pd and Cr had a range of 5.83 to 7.65 pH units, 0.15 to 2.74%, 1.88 ± 0.03 to 22.8 ± 0.28 mg kg−1, and 0.86 ± 0.03 to 4.87 ± 0.04 mg kg−1, respectively. There were significant differences between Upstream, Midstream (by the abattoir) and Downstream samples; however, there were no significant differences between dry and wet season results for most of the parameters. Midstream values for the water quality index were 104.89 and 119.34 in the dry and wet seasons, respectively, which showed that the Midstream water samples were poor. The findings of this study showed that the abattoir activities were negatively impacting river water and soil quality.
Locomotor transitions in the potential energy landscape-dominated regime
Creators: name: Othayoth, Ratan
name: Xuan, Qihan
name: Wang, Yaqing
name: Li, Chen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Systems and Control (eess.SY)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: To traverse complex three-dimensional terrainwith large obstacles, animals and robots must transition across different modes. However, the most mechanistic understanding of terrestrial locomotion concerns how to generate and stabilize near-steady-state, single-mode locomotion (e.g. walk, run). We know little about how to use physical interaction to make robust locomotor transitions. Here, we review our progress towards filling this gap by discovering terradynamic principles of multi-legged locomotor transitions, using simplified model systems representing distinct challenges in complex three-dimensional terrain. Remarkably, general physical principles emerge across diverse model systems, by modelling locomotor-terrain interaction using a potential energy landscape approach. The animal and robots' stereotyped locomotor modes are constrained by physical interaction. Locomotor transitions are stochastic, destabilizing, barrier-crossing transitions on the landscape. They can be induced by feed-forward self-propulsion and are facilitated by feedbackcontrolled active adjustment. General physical principles and strategies from our systematic studies already advanced robot performance in simple model systems. Efforts remain to better understand the intelligence aspect of locomotor transitions and how to compose larger-scale potential energy landscapes of complex three-dimensional terrains from simple landscapes of abstracted challenges. This will elucidate how the neuromechanical control system mediates physical interaction to generate multi-pathway locomotor transitions and lead to advancements in biology, physics, robotics and dynamical systems theory.
Fine structure of type III solar radio bursts from Langmuir wave motion in turbulent plasma
Creators: name: Reid, Hamish A. S.
name: Kontar, Eduard P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The Sun frequently accelerates near-relativistic electron beams that travel out through the solar corona and interplanetary space. Interacting with their plasma environment, these beams produce type III radio bursts, the brightest astrophysical radio sources seen from the Earth. The formation and motion of type III fine frequency structures is a puzzle but is commonly believed to be related to plasma turbulence in the solar corona and solar wind. Combining a theoretical framework with kinetic simulations and high-resolution radio type III observations using the Low Frequency Array, we quantitatively show that the fine structures are caused by the moving intense clumps of Langmuir waves in a turbulent medium. Our results show how type III fine structure can be used to remotely analyse the intensity and spectrum of compressive density fluctuations, and can infer ambient temperatures in astrophysical plasma, both significantly expanding the current diagnostic potential of solar radio emission.
description: 22 pages, 9 figures
Electromigrated nanoscale gaps for surface-enhanced Raman spectroscopy
Creators: name: Ward, D. R.
name: Grady, N. K.
name: Levin, C. S.
name: Halas, N. J.
name: Wu, Y.
name: Nordlander, P.
name: Natelson, D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Single-molecule detection with chemical specificity is a powerful and much desired tool for biology, chemistry, physics, and sensing technologies. Surface-enhanced spectroscopies enable single molecule studies, yet reliable substrates of adequate sensitivity are in short supply. We present a simple, scaleable substrate for surface-enhanced Raman spectroscopy (SERS) incorporating nanometer-scale electromigrated gaps between extended electrodes. Molecules in the nanogap active regions exhibit hallmarks of very high Raman sensitivity, including blinking and spectral diffusion. Electrodynamic simulations show plasmonic focusing, giving electromagnetic enhancements approaching those needed for single-molecule SERS.
description: 29 pages, 11 figures (includes supp. material)
Stellar Population Gradients in Bulges along the Hubble Sequence: II. Relations with Galaxy Properties
Creators: name: Jablonka, P.
name: Gorgas, J.
name: Goudfrooij, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the analysis of the radial gradients of stellar absorption lines in a sample of 32 bulges of edge-on spiral galaxies, spanning nearly the full Hubble sequence (from S0 to Sc types), and a large range of velocity dispersion (from about 60 to 300 km/s). Different diagnostics such as index-index, gradient-gradient diagrams, and simple stellar population models are used to tackle the origin of the variation of the bulge stellar population. We find that the vast majority of bulges show older age, lower metallicity and higher [alpha/Fe] in their outer regions than in their central parts. The radial gradients in [Fe/H] are 2 to 3 times larger than in Log(age). The relation between gradient and bulge velocity dispersion is interpreted as a gradual build up of the gradient mean values and their dispersions from high to low velocity dispersion, rather than a pure correlation. The bulge effective radii and the Hubble type of the parent galaxies seem to play a more minor role in causing the observed spatial distributions. At a given velocity dispersion, bulges and ellipticals share common properties.
description: Accepted for publication in A&A
Antiferromagnetism-superconductivity competition in electron-doped cuprates triggered by oxygen reduction
Creators: name: Richard, P.
name: Neupane, M.
name: Xu, Y. -M.
name: Fournier, P.
name: Li, S.
name: Dai, Pengcheng
name: Wang, Z.
name: Ding, H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have performed a systematic angle-resolved photoemission study of as-grown and oxygen-reduced Pr$_{2-x}$Ce$_x$CuO$_4$ and Pr$_{1-x}$LaCe$_{x}$CuO$_4$ electron-doped cuprates. In contrast to the common belief, neither the band filling nor the band parameters are significantly affected by the oxygen reduction process. Instead, we show that the main electronic role of the reduction process is to remove an anisotropic leading edge gap around the Fermi surface. While the nodal leading edge gap is induced by long-range antiferomagnetic order, the origin of the antinodal one remains unclear.
description: 4 pages, 4 figures
Worldsheet Instantons and Torsion Curves, Part B: Mirror Symmetry
Creators: name: Braun, Volker
name: Kreuzer, Maximilian
name: Ovrut, Burt A.
name: Scheidegger, Emanuel
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We apply mirror symmetry to the problem of counting holomorphic rational curves in a Calabi-Yau threefold X with Z_3 x Z_3 Wilson lines. As we found in Part A [hep-th/0703182], the integral homology group H_2(X,Z)=Z^3 + Z_3 + Z_3 contains torsion curves. Using the B-model on the mirror of X as well as its covering spaces, we compute the instanton numbers. We observe that X is self-mirror even at the quantum level. Using the self-mirror property, we derive the complete prepotential on X, going beyond the results of Part A. In particular, this yields the first example where the instanton number depends on the torsion part of its homology class. Another consequence is that the threefold X provides a non-toric example for the conjectured exchange of torsion subgroups in mirror manifolds.
description: 59 pages, LaTeX
GPs and hospital expenditures. Should we keep expenditure containment programs alive?
Creators: name: Fiorentini, Gianluca
name: Lippi Bruni, Matteo
name: Ugolini, Cristina
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: SECS-P/03 Scienza delle finanze

description: Pay-for-performance programs offering additional payments to GPs can be used not only to improve the quality of care but also for cost containment purposes. In this paper, we analyse the impact of removing financial incentives in primary care that were aimed at containing hospital
expenditure in the Italian region of Emilia Romagna during the period 2002-04. Our analysis draws on regional databanks linking GPs’ characteristics to those of their patients (including all sources of public payments made to GPs), together with information on the utilisation of
hospital services. We employ a difference-in-difference specification to assess changes in expenditures for avoidable and total hospital admissions. We identify the treatment group with GPs operating in districts where the program is withdrawn during the observation period (“Leavers”). Their performance is compared to that of two separate control groups, namely: GPs working in districts that grant incentives for the entire period (“Stayers”), and those working in districts that never introduced measures for the containment of hospitalisations (“Non Participants”).
The comparison between treatment and control groups shows that removing incentives does not result in a worse performance by Leavers compared to both control groups. This supports the policy of removing incentives, as such entail extra payments to GPs which, however, do not seem capable of significantly  influencing their behaviour in the desired ways. Our findings complement previous evidence from the same institutional context showing that only those programs that aim to improve disease management for specific conditions - rather than to simply contain expenditure - have proven successful in reducing avoidable admissions for the target population.
Predictions for the LHC heavy ion programme
Creators: name: Borghini, Nicolas
name: Wiedemann, Urs Achim
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Apparently universal trends have been observed in relativistic nucleus-nucleus collisions up to RHIC energies. Here, we review these trends and we discuss their agnostic extrapolation to heavy ion collisions at the LHC.
description: 37 pages, 6 figures; invited topical review for Journal of Physics G
Disorder screening near the Mott-Anderson transition
Creators: name: Aguiar, M. C. O.
name: Dobrosavljevic, V.
name: Abrahams, E.
name: Kotliar, G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Correlation-driven screening of disorder is studied within the typical-medium dynamical mean-field theory (TMT-DMFT) of the Mott-Anderson transition. In the strongly correlated regime, the site energies epsilon_R^i characterizing the effective disorder potential are strongly renormalized due to the phenomenon of Kondo pinning. This effect produces very strong screening when the interaction U is stronger then disorder W, but applies only to a fraction of the sites in the opposite limit (U
description: 2 pages, 3 figures, submitted to SCES proceedings
USco1606-1935: An Unusually Wide Low-Mass Triple System?
Creators: name: Kraus, Adam L.
name: Hillenbrand, Lynne A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present photometric, astrometric, and spectroscopic observations of USco160611.9-193532 AB, a candidate ultrawide (~1600 AU), low-mass (M_tot~0.4 M_sun) multiple system in the nearby OB association Upper Scorpius. We conclude that both components are young, comoving members of the association; we also present high-resolution observations which show that the primary is itself a close binary system. If the Aab and B components are gravitationally bound, the system would fall into the small class of young multiple systems which have unusually wide separations as compared to field systems of similar mass. However, we demonstrate that physical association can not be assumed purely on probabilistic grounds for any individual candidate system in this separation range. Analysis of the association's two-point correlation function shows that there is a significant probability (25%) that at least one pair of low-mass association members will be separated in projection by <15", so analysis of the wide binary population in Upper Sco will require a systematic search for all wide systems; the detection of another such pair would represent an excess at the 98% confidence level.
description: Accepted to ApJ; 11 pages, 6 figures in emulateapj format
title: The Logogram A' "Thigh" in Maya Writing
title: Research Note 29
titleType: Subtitle
Creators: name: Grube, Nikolai
name: Prager, Christian
name: Wagner, Elisabeth
name: Krempel, Guido
Publisher: name: Textdatenbank und Wörterbuch des Klassischen Maya
Year: 2024
Subjects: Classic Mayan

description: In this brief article, we propose a reading for a glyph depicting a pair of bent legs, or a kneeling headless human lower body, corresponding to T358 in the Thompson catalog (Thompson 1962), as well as 358st and 358md in our Thompson-based catalog. It is referred to as HTB in the Macri and Looper catalog (2003) and HL6 in the online catalog of the Maya Hieroglyphic Database (Looper and Macri 1991–2024). Although the glyph appears in only a limited number of contexts, it has already received attention in previous scholarship.
title: Rapid and reversible optical switching of cell membrane area by an amphiphilic azobenzene
Creators: name: Höglsperger, Fabian
name: Vos, Bart E.
name: Hofemeier, Arne D.
name: Seyfried, Maximilian D.
name: Stövesand, Bastian
name: Alavizargar, Azadeh
name: Topp, Leon
name: Heuer, Andreas
name: Betz, Timo
name: Ravoo, Bart Jan
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2025
Subjects: subject: 547 Organic chemistry

description: Cellular membrane area is a key parameter for any living cell that is tightly regulated to avoid membrane damage. Changes in area-to-volume ratio are known to be critical for cell shape, but are mostly investigated by changing the cell volume via osmotic shocks. In turn, many important questions relating to cellular shape, membrane tension homeostasis and local membrane area cannot be easily addressed because experimental tools for controlled modulation of cell membrane area are lacking. Here we show that photoswitching an amphiphilic azobenzene can trigger its intercalation into the plasma membrane of various mammalian cells ranging from erythrocytes to myoblasts and cancer cells. The photoisomerization leads to a rapid (250-500 ms) and highly reversible membrane area change (ca 2 % for erythrocytes) that triggers a dramatic shape modulation of living cells.
description: Finanziert über die DEAL-Vereinbarung mit Wiley, Springer oder Elsevier 2019–2023.
Coma cluster object populations down to M_R~-9.5
Creators: name: Adami, C.
name: Picat, J. P.
name: Durret, F.
name: Mazure, A.
name: Pello, R.
name: West, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This study follows a recent analysis of the galaxy luminosity functions and colour-magnitude red sequences in the Coma cluster (Adami et al. 2007). We analyze here the distribution of very faint galaxies and globular clusters in an east-west strip of $\sim 42 \times 7$ arcmin$^2$ crossing the Coma cluster center (hereafter the CS strip) down to the unprecedented faint absolute magnitude of M$_R \sim -9.5$. This work is based on deep images obtained at the CFHT with the CFH12K camera in the B, R, and I bands. The analysis shows that the observed properties strongly depend on the environment, and thus on the cluster history. When the CS is divided into four regions, the westernmost region appears poorly populated, while the regions around the brightest galaxies NGC 4874 and NGC 4889 (NGC 4874 and NGC 4889 being masked) are dominated by faint blue galaxies. They show a faint luminosity function slope of -2, very significantly different from the field estimates. Results are discussed in the framework of galaxy destruction (which can explain part of the very faint galaxy population) and of structures infalling on to Coma.
description: To be published in A&A
Particle propagation in cosmological backgrounds
Creators: name: Arteaga, Daniel
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the quantum propagation of particles in cosmological backgrounds, by considering a doublet of massive scalar fields propagating in an expanding universe, possibly filled with radiation. We focus on the dissipative effects related to the expansion rate. At first order, we recover the expected result that the decay rate is determined by the local temperature. Beyond linear order, the decay rate has an additional contribution governed by the expansion parameter. This latter contribution is present even for stable particles in the vacuum. Finally, we analyze the long time behaviour of the propagator and briefly discuss applications to the trans-Planckian question.
description: 7 pages. To appear in the proceedings of the IRGAC 2006 conference
Exploring nervous system transcriptomes during embryogenesis and metamorphosis in Xenopus tropicalis using EST analysis
Creators: name: Fierro, Ana C
name: Thuret, Raphaël
name: Coen, Laurent
name: Perron, Muriel
name: Demeneix, Barbara A
name: Wegnez, Maurice
name: Gyapay, Gabor
name: Weissenbach, Jean
name: Wincker, Patrick
name: Mazabraud, André
name: Pollet, Nicolas
Publisher: name: arXiv
Year: 2007
Subjects: subject: Genomics (q-bio.GN)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: Xenopus tropicalis is an anuran amphibian species used as model in vertebrate comparative genomics. It provides the same advantages as Xenopus laevis but is diploid and has a smaller genome of 1.7 Gbp. Therefore X. tropicalis is more amenable to systematic transcriptome surveys. We initiated a large-scale partial cDNA sequencing project to provide a functional genomics resource on genes expressed in the nervous system during early embryogenesis and metamorphosis in X. tropicalis. A gene index was defined and analysed after the collection of over 48,785 high quality sequences. Partial cDNA sequences were obtained from an embryonic head and retina library (30,272 sequences) and from a metamorphic brain and spinal cord library (27,602 sequences). These ESTs are estimated to represent 9,693 transcripts derived from an estimated 6,000 genes. An estimated 46% of these cDNA sequences contain their start codon. Further annotation included Gene Ontology functional classification, InterPro domain analysis, alternative splicing and non-coding RNA identification. Gene expression profiles were derived from EST counts and used to define transcripts specific to metamorphic stages of development. Moreover, these ESTs allowed identification of a set of 225 polymorphic microsatellites that can be used as genetic markers. These cDNA sequences permit in silico cloning of numerous genes and will facilitate studies aimed at deciphering the roles of cognate genes expressed in the nervous system during neural development and metamorphosis. The genomic resources developed to study X. tropicalis biology will accelerate exploration of amphibian physiology and genetics.
Quantum analysis of a linear DC SQUID mechanical displacement detector
Creators: name: Blencowe, M. P.
name: Buks, E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We provide a quantum analysis of a DC SQUID mechanical displacement detector within the sub-critical Josephson current regime. A segment of the SQUID loop forms the mechanical resonator and motion of the latter is transduced inductively through changes in the flux threading the loop. Expressions are derived for the detector signal response and noise, which are used to evaluate the position and force detection sensitivity. We also investigate cooling of the mechanical resonator due to back reaction noise from the detector.
description: 33 pages, 4 figures, published version
title: Analyse der Volumenänderungen nach Aortenbogenersatz mittels Frozen-Elephant-Trunk und konventionellem Elephant-Trunk bei akuter Aortendissektion Typ A
Creators: name: Yahia, Ahmed
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2024
Subjects: subject: 617 Surgery, regional medicine, dentistry, ophthalmology, otology, audiology

description: Die Dissertation mit dem Titel "Analyse der Volumenänderungen nach Aortenbogenersatz mittels Frozen-Elephant-Trunk und konventionellem Elephant-Trunk bei akuter Aortendissektion Typ A" untersuchte die Volumenänderungen der Aorta nach einem Aortenbogenersatz bei Patienten mit akuter Typ-A-Aortendissektion. Dabei wurden zwei Techniken verglichen: die konventionelle Elephant-Trunk-Technik (CET) und die Frozen-Elephant-Trunk-Technik (FET). Die Studie analysierte retrospektiv die Volumina des wahren, falschen und gesamten Lumens der Aorta mittels Computertomographie-Angiographie (CTA) zu vier Zeitpunkten: präoperativ, bei Entlassung, nach einem Jahr und nach zwei Jahren. Die Ergebnisse zeigten, dass die FET-Technik gegenüber der CET-Technik hinsichtlich der Reduktion von Falschlumenveränderungen und der Anzahl der Reinterventionen überlegen ist. Eine langfristige Beurteilung der Ergebnisse steht noch aus.
description: 1. Einleitung
1.1 Definition
1.2 Ätiologie & Pathogenese
1.3 Einteilung
1.4 Inzidenz
1.5 Klinik
1.6 Diagnostik
1.7 Therapieverfahren
2. Methodik
2.1 Fragestellung und Zielsetzung
2.2 Studienpopulation
2.3 Datenerhebung
2.4 Statistische Methoden
2.5 Ethikvotum
3. Ergebnisse
3.1 Präoperative Daten
3.2 Perioperative Daten
3.3 Postoperative Daten und Follow-Up
3.4 Volumetrische Daten
3.4.1 Volumetrische Änderung nach CET-Technik
3.4.2 Volumetrische Änderung nach FET-Technik
4. Diskussion
4.1 Klinischer Ausblick
4.2 Limitation der Studie
5. Zusammenfassung
6. Literaturverzeichnis
7. Danksagung
8. Lebenslauf
Mahalanobis distance-based robust approaches against false data injection attacks on dynamic power state estimation
Creators: name: Lin, Jing
name: Xiong, Kaiqi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Many researchers have studied false data injection (FDI) attacks in power state estimation, but existing state estimation approaches are still highly vulnerable to FDI attacks. In this paper, we investigate the problem of the above three FDI attacks against dynamic power state estimation (DSE). Although the three attacks were discovered in SSE several years ago, none of them has been well addressed in static power state systems. In this research, we propose two robust defense approaches against the above three efficient FDI attacks on DSE. Compared to existing approaches, our proposed approaches have three major differences and significant strengths: (1) they defend against the three FDI attacks on dynamic power state estimation rather than static power state estimation, (2) they give a robust estimator that can accurately extract a subset of attack-free sensors for power state estimation, and (3) they adopt the little-known Mahalanobis distance in the consistency check of power sensor measurements, which is different from the Euclidean distance used in all the existing studies on power state estimation. We mathematically prove that the Mahalanobis distance is not only useful but also much better than the Euclidean distance in the consistency check of power sensor measurements. Our time complexity analysis shows that the two proposed robust defense approaches are efficient. Moreover, in order to demonstrate the effectiveness of the proposed approaches, we compare them with the three well-known approaches: the least square approach, the Imhotep-SMT approach, and the MEE-UKF approach. Our extensive experiments show that the proposed approaches further reduce the estimation error by two orders of magnitude and four orders of magnitude compared to the Imhotep-SMT approach and the least square approach, respectively. Moreover, our approach is more stable than the MEE-UKF approach.
title: From Fragments to Clarity: Reconstructing The Hieroglyphic Narrative of Lintel 34 from Yaxchilan (Chiapas, Mexico)
title: Research Note 30
titleType: Subtitle
Creators: name: Prager, Christian
name: Grothe, Antje
Publisher: name: Textdatenbank und Wörterbuch des Klassischen Maya
Year: 2024
Subjects: Classic Mayan

description: During the investigation for the Maya Image Archive of the "Text Database and Dictionary of Classic Maya" project, Antje Grothe identified a previously unknown drawing by the German-Austrian architect and explorer Teobert Maler (1842-1917) (cf. Maler 1997). This artwork, dated around 1900, was recently published within Maler's digital repository at the Ibero-American Institute in Berlin. The pencil-and-ink rendering illustrates the inscription on Lintel 34 from the archaeological site of Yaxchilan (Chiapas, Mexico).
Optimal Linear Precoding Strategies for Wideband Non-Cooperative Systems based on Game Theory-Part I: Nash Equilibria
Creators: name: Scutari, Gesualdo
name: Palomar, D. P.
name: Barbarossa, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Information Theory (cs.IT)
subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: In this two-parts paper we propose a decentralized strategy, based on a game-theoretic formulation, to find out the optimal precoding/multiplexing matrices for a multipoint-to-multipoint communication system composed of a set of wideband links sharing the same physical resources, i.e., time and bandwidth. We assume, as optimality criterion, the achievement of a Nash equilibrium and consider two alternative optimization problems: 1) the competitive maximization of mutual information on each link, given constraints on the transmit power and on the spectral mask imposed by the radio spectrum regulatory bodies; and 2) the competitive maximization of the transmission rate, using finite order constellations, under the same constraints as above, plus a constraint on the average error probability. In Part I of the paper, we start by showing that the solution set of both noncooperative games is always nonempty and contains only pure strategies. Then, we prove that the optimal precoding/multiplexing scheme for both games leads to a channel diagonalizing structure, so that both matrix-valued problems can be recast in a simpler unified vector power control game, with no performance penalty. Thus, we study this simpler game and derive sufficient conditions ensuring the uniqueness of the Nash equilibrium. Interestingly, although derived under stronger constraints, incorporating for example spectral mask constraints, our uniqueness conditions have broader validity than previously known conditions. Finally, we assess the goodness of the proposed decentralized strategy by comparing its performance with the performance of a Pareto-optimal centralized scheme. To reach the Nash equilibria of the game, in Part II, we propose alternative distributed algorithms, along with their convergence conditions.
description: Paper submitted to IEEE Transactions on Signal Processing, September 22, 2005. Revised March 14, 2007. Accepted June 5, 2007. To be published on IEEE Transactions on Signal Processing, 2007. To appear on IEEE Transactions on Signal Processing, 2007
A novel approach for the efficient modeling of material dissolution in electrochemical machining
Creators: name: van der Velden, Tim
name: Rommes, Bob
name: Klink, Andreas
name: Reese, Stefanie
name: Waimann, Johanna
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: This work presents a novel approach to efficiently model anodic dissolution in electrochemical machining. Earlier modeling approaches employ a strict space discretization of the anodic surface that is associated with a remeshing procedure at every time step. Besides that, the presented model is formulated by means of effective material parameters. Thereby, it allows to use a constant mesh for the entire simulation and, thus, decreases the computational costs. Based on Faraday's law of electrolysis, an effective dissolution level is introduced, which describes the ratio of a dissolved volume and its corresponding reference volume. This inner variable allows the modeling of the complex dissolution process without the necessity of computationally expensive remeshing by controlling the effective material parameters. Additionally, full coupling of the thermoelectric problem is considered and its linearization and numerical implementation are presented. The model shows good agreement with analytical and experimental validation examples by yielding realistic results. Furthermore, simulations of a pulsed electrochemical machining process yield a process signature of the surface roughness related to the specific accumulated electric charge. The numerical examples confirm the simulation's computational efficiency and accurate modeling qualities.
The growth of superpower naval rivalry in the Indian Ocean and Sri Lankan response
Creators: name: Keerawella, Gamini Bandara
Publisher: name: University of British Columbia
Year: 2010

description: The Indian Ocean has experienced a process of profound change in its political and strategic map since World War II. This began with the British withdrawal from East of Suez, and was followed by the entry of the superpowers into the Indian Ocean, the growth of superpower naval rivalry, and the proliferation of security problems of the states in the region. The essence of these developments is the transformation of the Indian Ocean from the stability of one-power domination to the instability of superpower rivalry. The thesis examines the process of this transformation and the Sri Lankan response from a historical perspective. The transformation of the power structure in the Indian Ocean was essentially an outcome of the changes in power configurations in world politics. The growth of superpower rivalry in the Indian Ocean must be understood in relation to the evolution of political, economic, and strategic interests of the superpowers, advances in weapons systems and naval technology, and political developments in the region. The superpower naval rivalry has three interrelated elements, viz, naval deployments, weapons deals, and jockeying for bases/logistic support in the region. It evolves in three phases: from 1968 to the 1973 oil crisis; from the oil crisis to 1978; and since 1978. There are definite linkages between superpower naval rivalry and the conflict patterns in the region. The states in the region count on the superpowers for their security because of the inherent weaknessess of the ruling elites in the region, the limits of their security options, and economic dependence. The invariable outcome is a chain reaction resulting in military pacts, puppet governments, political supression, and proxy war, which forms the texture of the international politics of the Indian Ocean region. Sri Lankan responses to superpower naval rivalry can be explained in relation to the geo-political framework of her strategic thinking, and her internal political and economic processes. In the period 1948-56, Sri Lanka identified herself with the British defence structure in the Indian Ocean. With the changes introduced by the M.E.P. regime, non-alignment became the foreign policy approach of Sri Lanka after 1956. In accordance with the growth of superpower naval presence, Sri Lanka became more sensitive to Indian Ocean strategic issues in the 1960s. After 1970, Sri Lankan policy towards the Indian Ocean took a more coherent form and was designed to balance two considerations - first, at the sub-regional level, how to deal with India; and at the Indian Ocean level, how to check superpower naval rivalry and the increasing militarization of the Indian Ocean. This was reflected in Sri Lanka's proposal for an Indian Ocean Peace Zone (IOPZ). After 1977, under the changed internal and international situation, Sri Lanka soft-pedalled her earlier more articulated position regarding superpower naval riavlry in the Indian Ocean.
Effect of Pulp Temperature on Separation of Magnesite from Dolomite in Sodium Oleate Flotation System
Creators: name: Yin, Wanzhong
name: Sun, Haoran
name: Tang, Yuan
name: Hong, Jongsu
name: Yang, Bin
name: Fu, Yafeng
name: Han, Huili
Publisher: name: Faculty of Geoengineering, Mining and Geology, Wrocław University of Technology, Wrocław
Year: 2019
Subjects: magnesite, dolomite, temperature, adsorption, flotation separation

description: Physicochemical Problems of Mineral Processing; ISSN 2084-4735