cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Generation of picosecond pulsed coherent state superpositions
Creators: name: Dong, Ruifang
name: Tipsmark, Anders
name: Laghaout, Amine
name: Krivitsky, Leonid A.
name: Ježek, Miroslav
name: Andersen, Ulrik L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present the generation of approximated coherent state superpositions - referred to as Schrödinger cat states - by the process of subtracting single photons from picosecond pulsed squeezed states of light at 830 nm. The squeezed vacuum states are produced by spontaneous parametric down-conversion (SPDC) in a periodically poled KTiOPO4 crystal while the single photons are probabilistically subtracted using a beamsplitter and a single photon detector. The resulting states are fully characterized with time-resolved homodyne quantum state tomography. Varying the pump power of the SPDC, we generated different states which exhibit non-Gaussian behavior.
description: 17 pages, 8 figures, 3 tables
title: Geschlecht als Sublimierung
title: Zur Rolle des Begehrens für die Subjektformation
titleType: Subtitle
Creators: name: Laquièze-Waniek, Eva
Publisher: name: Humboldt-Universität zu Berlin
Year: 2019
Subjects: subject: Vergeschlechtlichung
subject: Psychoanalyse
subject: Kindheit
subject: Subjektivierung
subject: 150 Psychologie

description: J. Butler hob mit S. Freud die Identifizierungen des Kindes hervor (Psyche der Macht, 2001), wobei sie geschlechtliche Identität als Produkt einer melancholischen Einverleibung der frühen Anderen sichtbar machte. Was aber, wenn man nicht die ödipalen Identifizierungen, sondern das Begehren als bestimmenden Faktor der Vergeschlechtlichung erwägt? Dieser Frage soll mit J. Lacan, der das Begehren als ein strukturelles Vermögen begriff, nachgegangen werden: Dieses entsteht, sobald die mütterliche Bezugsperson durch Symbole substituiert wird, was dem Kind später erlaubt, den inzestuös verbotenen Anderen durch Objekte zu ersetzen. Dieser zweizeitige Prozess rückt die Vergeschlechtlichung in die Nähe zur Sublimierung, wobei Geschlechtliches als eine besondere Form der Sublimierung verstanden werden kann. Dabei erweist sich das Begehren nachhaltiger als die Identifizierungen, da es das Subjekt – jenseits der gefährlichen melancholischen Verstrickungen – zu Drittem in das Soziale führt. Eine derart über das Begehren aufgefasste Geschlechtlichkeit hat nicht zuletzt auch gesellschaftspolitische Relevanz, da Identitäres nicht als zentraler Angelpunkt der Subjektformation aufgefasst werden muss: Geschlechterpolitik wäre damit nicht nur Angelegenheit gleicher Identifikationsgruppen, sondern einer stets auf das Neue herzustellenden Gemeinschaft in Bezug auf den geteilten Wunsch nach lebbarem Begehren in unserer Gesellschaft.
The impact of high density receptor clusters on VEGF signaling
Creators: name: Chen, Ye
name: Short, Christopher
name: Halász, Ádám M.
name: Edwards, Jeremy S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Systems and Control (eess.SY)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Biological sciences

description: Vascular endothelial growth factor (VEGF) signaling is involved in the process of blood vessel development and maintenance. Signaling is initiated by binding of the bivalent VEGF ligand to the membrane-bound receptors (VEGFR), which in turn stimulates receptor dimerization. Herein, we discuss experimental evidence that VEGF receptors localize in caveloae and other regions of the plasma membrane, and for other receptors, it has been shown that receptor clustering has an impact on dimerization and thus also on signaling. Overall, receptor clustering is part of a complex ecosystem of interactions and how receptor clustering impacts dimerization is not well understood. To address these questions, we have formulated the simplest possible model. We have postulated the existence of a single high affinity region in the cell membrane, which acts as a transient trap for receptors. We have defined an ODE model by introducing high- and low-density receptor variables and introduce the corresponding reactions from a realistic model of VEGF signal initiation. Finally, we use the model to investigate the relation between the degree of VEGFR concentration, ligand availability, and signaling. In conclusion, our simulation results provide a deeper understanding of the role of receptor clustering in cell signaling.
description: In Proceedings HSB 2013, arXiv:1308.5724
title: Bound in a Spiral Dance
title: Der Tanz von Cyborg und Göttin als Diffraktion
titleType: Subtitle
Creators: name: Kronberger, Alisa
Publisher: name: Humboldt-Universität zu Berlin
Year: 2019
Subjects: subject: Feminismus
subject: Kritik
subject: Feministische Kritik
subject: Spiritualität
subject: Cyborg
subject: 303 Gesellschaftliche Prozesse
subject: Neuer Materialismus

description: Mit den Worten „[I would] rather be a cyborg than a goddess“ schließt Donna Haraway 1984 ihr einschlägiges „Manifesto for Cyborgs“ (Haraway 1991 [1984], 180). Damit wurde die Cyborg als Figur technisch-menschlicher Hybridität als feministisches Gegenmodell zu einer ‚technophoben‘ Göttin eingeführt. Letztere gilt als zentrale Metapher spirituellen, ökofeministischen Denkens der 1970er und 1980er Jahre und ist stark, so Haraways Kritik, an nostalgische Narrative der Rückeroberung einer matriarchalen, prä-historischen Zeit gekoppelt. Die Cyborg hingegen verkörpert das Versprechen, aus den die Industriegesellschaften dominierenden Dualismen (Kultur/Natur, Frau/Mann, etc.) auszubrechen. Für was stehen die Grenzfiguren Cyborg und Göttin in feministischen Kontexten (noch) ein? Lässt sich die in einem Spannungsfeld stehende Cyborg-Göttin als ergiebig für einen gegenwärtigen feministischen Dialog denken? Ausgehend von diesen Fragen konzentriert sich der Aufsatz auf ein diffraktives Ineinander- und Gegeneinander-Lesen der beiden Grenzfiguren, mit dem Ziel, die aktuelle feministische Debatte zu verkomplizieren und damit neue Räume für Resignifikationen und Reinterpretationen zu eröffnen.
The contribution of the major planet search surveys to EChO target selection
Creators: name: Micela, Giuseppina
name: Bakos, Gaspar A.
name: Lopez-Morales, Mercedes
name: Maxted, Pierre F. L.
name: Pagano, Isabella
name: Sozzetti, Alessandro
name: Wheatley, Peter J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The EChO core science will be based on a three tier survey, each with increasing sensitivity, in order to study the population of exo-planets from super-Earths to Jupiter-like planets, in the very hot to temperate zones (temperatures of 300 K - 3000 K) of F to M-type host stars. To achieve a meaningful outcome an accurate selection of the target sample is needed. In this paper we analyse the targets, suitable for EChO observations, expected to result from a sample of present and forthcoming detection surveys. Exoplanets currently known are already sufficient to provide a large and diverse sample. However we expect the results from these surveys to increase the sample of smaller planets that will allow us to optimize the EChO sample selection.
description: Submitted to Experimental Astronomy
The Herschel/PACS view of disks around low-mass stars in Chamaleon-I
Creators: name: Olofsson, J.
name: Szűcs, L.
name: Henning, Th.
name: Linz, H.
name: Pascucci, I.
name: Joergens, V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Circumstellar disks are expected to be the birthplaces of planets. The potential for forming one or more planets of various masses is essentially driven by the initial mass of the disks. We present and analyze Herschel/PACS observations of disk-bearing M-type stars that belong to the young ~2 Myr old Chamaleon-I star forming region. We used the radiative transfer code RADMC to successfully model the SED of 17 M-type stars detected at PACS wavelengths. We first discuss the relatively low detection rates of M5 and later spectral type stars with respect to the PACS sensitivity, and argue their disks masses, or flaring indices, are likely to be low. For M0 to M3 stars, we find a relatively broad range of disk masses, scale heights, and flaring indices. Via a parametrization of dust stratification, we can reproduce the peak fluxes of the 10 $μ$m emission feature observed with Spitzer/IRS, and find that disks around M-type stars may display signs of dust sedimentation. The Herschel/PACS observations of low-mass stars in Cha-I provide new constraints on their disk properties, overall suggesting that disk parameters for early M-type stars are comparable to those for more massive stars (e.g., comparable scale height and flaring angles). However, regions of the disks emitting at about 100 $μ$m may still be in the optically thick regime, preventing direct determination of disk masses. Thus the modeled disk masses should be considered as lower limits. Still, we are able to extend the wavelength coverage of SED models and start characterizing effects such as dust sedimentation, an effort leading the way towards ALMA observations of these low-mass stars.
Modelling Observation Correlations for Active Exploration and Robust Object Detection
Creators: name: Velez, Javier
name: Hemann, Garrett
name: Huang, Albert S.
name: Posner, Ingmar
name: Roy, Nicholas
Publisher: name: arXiv
Year: 2014
Subjects: subject: Robotics (cs.RO)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Today, mobile robots are expected to carry out increasingly complex tasks in multifarious, real-world environments. Often, the tasks require a certain semantic understanding of the workspace. Consider, for example, spoken instructions from a human collaborator referring to objects of interest; the robot must be able to accurately detect these objects to correctly understand the instructions. However, existing object detection, while competent, is not perfect. In particular, the performance of detection algorithms is commonly sensitive to the position of the sensor relative to the objects in the scene. This paper presents an online planning algorithm which learns an explicit model of the spatial dependence of object detection and generates plans which maximize the expected performance of the detection, and by extension the overall plan performance. Crucially, the learned sensor model incorporates spatial correlations between measurements, capturing the fact that successive measurements taken at the same or nearby locations are not independent. We show how this sensor model can be incorporated into an efficient forward search algorithm in the information space of detected objects, allowing the robot to generate motion plans efficiently. We investigate the performance of our approach by addressing the tasks of door and text detection in indoor environments and demonstrate significant improvement in detection performance during task execution over alternative methods in simulated and real robot experiments.
title: Cartography as a image science
Creators: name: Pápay, Gyula
Publisher: name: KartDok - Repositorium Kartographie
Year: 2023
Subjects: subject: Image science
subject: sign theory
subject: cartosemiotics
subject: cartographic image concept
subject: Bildwissenschaft
subject: Zeichentheorie
subject: Kartosemiotik
subject: kartographischer Bildbegriff
subject: 520

description: Cartography is one of the oldest image sciences. In its long history, it had to deal with numerous image problems and came into contact with numerous scientific disciplines in the process. In recent decades, theoretical cartography has dealt with the general problem of images primarily from a semiotic perspective. The traditional narrowing of the concept of image has been maintained. The advantages of a more comprehensive concept of image are shown here using the example of the relationships of imagery, similarity and generalisation.
description: Die Kartographie gehört zu den ältesten Bildwissenschaften. In ihrer langen Geschichte musste sie sich mit zahlreichen Bildproblemen auseinander setzen und kam dabei mit zahlreichen Wissenschaftsdisziplinen in Verbindung. In den letzten Jahrzehnten erfolgte die Bewältigung der allgemeinen Bildproblematik in der theoretischen Kartographie vorwiegend aus semiotischer Sicht. Die traditionelle Einengung des Bildbegriffes wurde dabei weiterhin beibehalten. Die Vorteile eines umfassenderen Bildbegriffes werden hier am Beispiel der Beziehungen von Bildhaftigkeit, Ähnlichkeit und Verallgemeinerung gezeigt.
Falsifying Oscillation Properties of Parametric Biological Models
Creators: name: Dang, Thao
name: Dreossi, Tommaso
Publisher: name: arXiv
Year: 2013
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We propose an approach to falsification of oscillation properties of parametric biological models, based on the recently developed techniques for testing continuous and hybrid systems. In this approach, an oscillation property can be specified using a hybrid automaton, which is then used to guide the exploration in the state and input spaces to search for the behaviors that do not satisfy the property. We illustrate the approach with the Laub-Loomis model for spontaneous oscillations during the aggregation stage of Dictyostelium.
description: In Proceedings HSB 2013, arXiv:1308.5724
"C1C1WW_300_50_SLHA.dat" of "Search for electroweak production of charginos and sleptons decaying into final states with two leptons and missing transverse momentum in $\sqrt{s}=13$ TeV $pp$ collisions using the ATLAS detector"
Creators: name: ATLAS Collaboration
Publisher: name: HEPData
Year: 2021

description: C1C1WW_300_50 SLHA
description: A search for the electroweak production of charginos and sleptons decaying into final states with two electrons or muons is presented. The analysis is based on 139.0 fb$^{-1}$ of proton-proton collisions recorded by the ATLAS detector at the Large Hadron Collider at $\sqrt{s}$ = 13 TeV. Three R-parity conserving scenarios where the lightest neutralino is the lightest supersymmetric particle are considered: the production of chargino pairs with decays via either W bosons or sleptons, and the direct production of slepton pairs. The analysis is optimised to target the first of these scenarios, but its results are also interpreted in the other ones. No significant deviations from the Standard Model expectations are observed and stringent limits at 95% confidence level are set on the masses of relevant supersymmetric particles in each of these scenarios. For a massless lightest neutralino, masses up to 420 GeV are excluded for the production of the lightest chargino pairs assuming W boson mediated decays and up to 1 TeV for slepton mediated decays, whereas for slepton-pair production masses up to 700 GeV are excluded assuming three generations of mass-degenerate sleptons.
The Discovery of Pulsating Hot Subdwarfs in NGC 2808
Creators: name: Brown, Thomas M.
name: Landsman, Wayne B.
name: Randall, Suzanna K.
name: Sweigart, Allen V.
name: Lanz, Thierry
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the results of a Hubble Space Telescope program to search for pulsating hot subdwarfs in the core of NGC 2808. These observations were motivated by the recent discovery of such stars in the outskirts of omega Cen. Both NGC 2808 and omega Cen are massive globular clusters exhibiting complex stellar populations and large numbers of extreme horizontal branch stars. Our far-UV photometric monitoring of over 100 hot evolved stars has revealed six pulsating subdwarfs with periods ranging from 85 to 149 s and UV amplitudes of 2.0 to 6.8%. In the UV color-magnitude diagram of NGC 2808, all six of these stars lie immediately below the canonical horizontal branch, a region populated by the subluminous "blue-hook" stars. For three of these six pulsators, we also have low-resolution far-UV spectroscopy that is sufficient to broadly constrain their atmospheric abundances and effective temperatures. Curiously, and in contrast to the omega Cen pulsators, the NGC 2808 pulsators do not exhibit the spectroscopic or photometric uniformity one might expect from a well-defined instability strip, although they all fall within a narrow band (0.2 mag) of far-UV luminosity.
description: 5 pages, 1 table, 2 color and 2 grayscale figures. Accepted for publication in The Astrophysical Journal Letters
Optical and Near-Infrared Shocks in the L988 Cloud Complex
Creators: name: Walawender, Josh
name: Reipurth, Bo
name: Bally, John
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have searched the Lynds 988 dark cloud complex for optical (\ha{} and \sii{}) and near-IR (\mh{} 2.12 $μ$m) shocks from protostellar outflows. We find 20 new Herbig-Haro objects and 6 new \mh{} shocks (MHO objects), 3 of which are cross detections. Using the morphology in the optical and near-IR, we connect several of these shocks into at least 5 distinct outflow systems and identify their source protostars from catalogs of infrared sources. Two outflows in the cloud, from IRAS 21014+5001 and IRAS 21007+4951, are in excess of 1 pc in length. The IRAS 21007+4951 outflow has carved a large cavity in the cloud through which background stars can be seen. Also, we have found an optical shock which is the counterflow to the previously discovered "northwest outflow" from LkHa 324SE.
"C1C1SlepSnu_600_300_1_SLHA.dat" of "Search for electroweak production of charginos and sleptons decaying into final states with two leptons and missing transverse momentum in $\sqrt{s}=13$ TeV $pp$ collisions using the ATLAS detector"
Creators: name: ATLAS Collaboration
Publisher: name: HEPData
Year: 2021

description: C1C1SlepSnu_600_300_1 SLHA
description: A search for the electroweak production of charginos and sleptons decaying into final states with two electrons or muons is presented. The analysis is based on 139.0 fb$^{-1}$ of proton-proton collisions recorded by the ATLAS detector at the Large Hadron Collider at $\sqrt{s}$ = 13 TeV. Three R-parity conserving scenarios where the lightest neutralino is the lightest supersymmetric particle are considered: the production of chargino pairs with decays via either W bosons or sleptons, and the direct production of slepton pairs. The analysis is optimised to target the first of these scenarios, but its results are also interpreted in the other ones. No significant deviations from the Standard Model expectations are observed and stringent limits at 95% confidence level are set on the masses of relevant supersymmetric particles in each of these scenarios. For a massless lightest neutralino, masses up to 420 GeV are excluded for the production of the lightest chargino pairs assuming W boson mediated decays and up to 1 TeV for slepton mediated decays, whereas for slepton-pair production masses up to 700 GeV are excluded assuming three generations of mass-degenerate sleptons.
"SlepSlep_400_200_SLHA.dat" of "Search for electroweak production of charginos and sleptons decaying into final states with two leptons and missing transverse momentum in $\sqrt{s}=13$ TeV $pp$ collisions using the ATLAS detector"
Creators: name: ATLAS Collaboration
Publisher: name: HEPData
Year: 2021

description: SlepSlep_400_200 SLHA
description: A search for the electroweak production of charginos and sleptons decaying into final states with two electrons or muons is presented. The analysis is based on 139.0 fb$^{-1}$ of proton-proton collisions recorded by the ATLAS detector at the Large Hadron Collider at $\sqrt{s}$ = 13 TeV. Three R-parity conserving scenarios where the lightest neutralino is the lightest supersymmetric particle are considered: the production of chargino pairs with decays via either W bosons or sleptons, and the direct production of slepton pairs. The analysis is optimised to target the first of these scenarios, but its results are also interpreted in the other ones. No significant deviations from the Standard Model expectations are observed and stringent limits at 95% confidence level are set on the masses of relevant supersymmetric particles in each of these scenarios. For a massless lightest neutralino, masses up to 420 GeV are excluded for the production of the lightest chargino pairs assuming W boson mediated decays and up to 1 TeV for slepton mediated decays, whereas for slepton-pair production masses up to 700 GeV are excluded assuming three generations of mass-degenerate sleptons.
Engineering selective porosity in silicon through modulation of electron and ion transport in MACEtch
Creators: name: Bertelsmann, Karina Lena
name: 0000-0001-6982-7688
Publisher: name: The University of Texas at Austin
Year: 2022
Subjects: Porosity
MACE
MACEtch
Porous silicon

description: Metal-assisted chemical etching (MACEtch) has been an effective and efficient method for the nanoscale etching of silicon. This process can suffer from the creation of imperfections, such as porosity in the features, that overall limit the applications of MACEtch. If porosity in silicon is incorporated in a controlled manner, however, it can lead to important applications in areas ranging from optics to energy. The goal of this work was to create selectively porous regions in single crystal silicon wafers using patterning of catalysts such as gold and ruthenium followed by MACEtch. The creation of porosity is determined by the relationship between the rate of hole injection into, or electron removal from, the silicon and the rate at which the HF is able to access the oxidized silicon in order to etch it away. Electrical hole transport is governed by the choice of metal catalyst, the molar ratio of HF to (HF+H₂O₂) in the MACEtch solution, and the doping of the silicon wafer, all of which were varied in this work. Increased molar concentrations of H₂O₂ and higher p-doping of the wafer both serve to improve hole injection, thus fostering the creation of porosity. On the other side of the balance, HF’s access to the silicon must be enabled by nanoscale discontinuities in the catalyst film, which can be inherently present in the material at low thicknesses or by manufacturing intentional discontinuities in the metal through a nanofabrication process. Given this understanding of porosity creation in silicon, it is then possible to create selective regions with controlled porosity. Depositing ruthenium in locations on the wafer where porosity was not desired, while protecting the surface of the silicon in locations intended to become porous resulted in a reliable process for fabricating selectively porous regions. When the MACEtch was subsequently performed, the inherent continuity of the ruthenium film with no nanoscale discontinuities prevented porosity creation in the silicon underneath those regions, while the hole injection from the same ruthenium traveled to the surrounding silicon to help create porosity in the areas exposed to the HF in the MACEtch solution.
"ANA-SUSY-2018-32.cxx" of "Search for electroweak production of charginos and sleptons decaying into final states with two leptons and missing transverse momentum in $\sqrt{s}=13$ TeV $pp$ collisions using the ATLAS detector"
Creators: name: ATLAS Collaboration
Publisher: name: HEPData
Year: 2021

description: SimpleAnalysis implementation, to compute acceptance and efficiency
description: A search for the electroweak production of charginos and sleptons decaying into final states with two electrons or muons is presented. The analysis is based on 139.0 fb$^{-1}$ of proton-proton collisions recorded by the ATLAS detector at the Large Hadron Collider at $\sqrt{s}$ = 13 TeV. Three R-parity conserving scenarios where the lightest neutralino is the lightest supersymmetric particle are considered: the production of chargino pairs with decays via either W bosons or sleptons, and the direct production of slepton pairs. The analysis is optimised to target the first of these scenarios, but its results are also interpreted in the other ones. No significant deviations from the Standard Model expectations are observed and stringent limits at 95% confidence level are set on the masses of relevant supersymmetric particles in each of these scenarios. For a massless lightest neutralino, masses up to 420 GeV are excluded for the production of the lightest chargino pairs assuming W boson mediated decays and up to 1 TeV for slepton mediated decays, whereas for slepton-pair production masses up to 700 GeV are excluded assuming three generations of mass-degenerate sleptons.
Local Consistency and SAT-Solvers
Creators: name: Jeavons, Peter
name: Petke, Justyna
Publisher: name: arXiv
Year: 2014
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Local consistency techniques such as k-consistency are a key component of specialised solvers for constraint satisfaction problems. In this paper we show that the power of using k-consistency techniques on a constraint satisfaction problem is precisely captured by using a particular inference rule, which we call negative-hyper-resolution, on the standard direct encoding of the problem into Boolean clauses. We also show that current clause-learning SAT-solvers will discover in expected polynomial time any inconsistency that can be deduced from a given set of clauses using negative-hyper-resolvents of a fixed size. We combine these two results to show that, without being explicitly designed to do so, current clause-learning SAT-solvers efficiently simulate k-consistency techniques, for all fixed values of k. We then give some experimental results to show that this feature allows clause-learning SAT-solvers to efficiently solve certain families of constraint problems which are challenging for conventional constraint-programming solvers.
Module M.7 Generalized linear mixed-effects models
Creators: name: Bland, Alexandra
name: Hernández-Pacheco, Raisa
Publisher: name: QUBES Educational Resources
Year: 2023

description: Introduction to Primate Data Exploration and Linear Modeling with R was created with the goal of providing training to undergraduate biology students on data management and statistical analysis using authentic data of Cayo Santiago rhesus macaques. Module M.7 introduces generalized linear mixed-effects modeling in R.
A hybrid mammalian cell cycle model
Creators: name: Noël, Vincent
name: Vakulenko, Sergey
name: Radulescu, Ovidiu
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Hybrid modeling provides an effective solution to cope with multiple time scales dynamics in systems biology. Among the applications of this method, one of the most important is the cell cycle regulation. The machinery of the cell cycle, leading to cell division and proliferation, combines slow growth, spatio-temporal re-organisation of the cell, and rapid changes of regulatory proteins concentrations induced by post-translational modifications. The advancement through the cell cycle comprises a well defined sequence of stages, separated by checkpoint transitions. The combination of continuous and discrete changes justifies hybrid modelling approaches to cell cycle dynamics. We present a piecewise-smooth version of a mammalian cell cycle model, obtained by hybridization from a smooth biochemical model. The approximate hybridization scheme, leading to simplified reaction rates and binary event location functions, is based on learning from a training set of trajectories of the smooth model. We discuss several learning strategies for the parameters of the hybrid model.
description: In Proceedings HSB 2013, arXiv:1308.5724
Position-sensitive spectral splitting with a plasmonic nanowire on silicon chip
Creators: name: Hu, Qing
name: Xu, Di-Hu
name: Zhou, Yu
name: Peng, Ru-Wen
name: Fan, Ren-Hao
name: Fang, Nicholas X.
name: Wang, Qian-Jin
name: uang, Xian-Rong
name: Wang, Mu
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: On-chip nanophotonics serves as the foundation for the new generation of information technology, but it is challenged by the diffraction limit of light. With the capabilities of confining light into (deep) subwavelength volumes, plasmonics makes it possible to dramatically miniaturize optical devices so as to integrate them into silicon chips. Here we demonstrate that by cascading nano-corrugation gratings with different periodicities on silver nanowires atop silicon, different colors can be spatially separated and chronologically released at different grating junctions. The released light frequency depends on the grating arrangement and corrugation periodicities. Hence the nanowire acts as a spectral splitter for sorting/demultiplexing photons at different nano-scale positions with a ten-femtosecond-level interval. Such nanowires can be constructed further into compact 2D networks or circuits. We believe that this study provides a new and promising approach for realizing spatiotemporal-sensitive spectral splitting and optical signal processing on nanoscales, and for general integration of nanophotonics with microelectronics.
Tail Asymptotics of Random Sum and Maximum of Log-Normal Risks
Creators: name: Hashorva, Enkelejd
name: Kortschak, Dominik
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: In this paper we derive the asymptotic behaviour of the survival function of both random sum and random maximum of log-normal risks. As for the case of finite sum and maximum investigated in Asmussen and Rojas-Nandaypa (2008) also for the more general setup of random sums and random maximum the principle of a single big jump holds. We investigate both the log-normal sequences and some related dependence structures motivated by stationary Gaussian sequences.
Exploring the Dynamics of Mass Action Systems
Creators: name: Maler, Oded
name: Halász, Ádám M.
name: Lebeltel, Olivier
name: Maler, Ouri
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: We present the Populus toolkit for exploring the dynamics of mass action systems under different assumptions.
description: In Proceedings HSB 2013, arXiv:1308.5724
NAVIGATING THE CHALLENGES OF LEARNING KOREAN
Creators: name: Jaloliddinova, Madina
Publisher: name: Zenodo
Year: 2023

description: Learning Korean can be a thrilling endeavor, but it also comes with its fair share of challenges. This article explores the main issues encountered when learning Korean and provides insights on how to overcome them. The challenges discussed include the grammar structure, honorifics and politeness levels, pronunciation and the sound system, as well as vocabulary acquisition. Strategies such as immersion, consistent practice, systematic study, observation of native speakers, pronunciation guides, and contextual learning are suggested to tackle these challenges effectively. By understanding and addressing these obstacles, learners can navigate their Korean language journey with confidence and make steady progress towards fluency.
FreeWheel Technical and Service Objectives and Key Results + KPIs
Creators: name: Luccarelli, Tiziano
Publisher: name: Zenodo
Year: 2018

description: The work for developing this “Technical and Service Objectives and key results + KPIs”
 deliverable has been distributed all along the human-centered research activities and the
 technical feasibility studies performed during the WP2. Previous deliverables as such as the
 Experience Maps and the FreeWheel Stories Repository have strongly contributed in outlining
 the various pieces of information contributing to this document.
 Additionally, we were successful in including and harmonizing the Overarching Goals and the
 Quantitative Technical Objectives already introduced in the project proposal while submitted
 almost a year ago.
 In picturing the project evolution and trying to facilitate the results exploitation after the project
 timeframe, we decided to create a flexible framework for adapting the objectives with new
 knowledge and information. We have now a hybrid and dynamic SMART objectives
 framework.
 With this deliverable we achieved a clear and shared understanding of the performances the
 product and the service must point to. We have a set of nine Technical Design Objectives
 and six Service Design Objective that are a solid reference for the work the whole consortium
 will engage into from now on.
Polygonal VH Complexes
Creators: name: Polák, Jason K. C.
name: Wise, Daniel T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F65

description: Ian Leary inquires whether a class of hyperbolic finitely presented groups are residually finite. We answer in the affirmative by giving a systematic version of a construction in his paper, which shows that the standard 2-complexes of these presentations have a VH-structure. This structure induces a splitting of these groups, which together with hyperbolicity, implies that these groups are residually finite.
description: 7 pages, 2 figures
Metal hydride material requirements for automotive hydrogen storage systems
Creators: name: Pasini, Jose Miguel
name: Corgnale, Claudio
name: van Hassel, Bart A.
name: Motyka, Theodore
name: Kumar, Sudarshan
name: Simmons, Kevin L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The United States Department of Energy (DOE) has published a progression of technical targets to be satisfied by on-board rechargeable hydrogen storage systems in light-duty vehicles. By combining simplified storage system and vehicle models with interpolated data from metal hydride databases, we obtain material-level requirements for metal hydrides that can be assembled into systems that satisfy the DOE targets for 2017. We assume minimal balance-of-plant components for systems with and without a hydrogen combustion loop for supplemental heating. Tank weight and volume are driven by the stringent requirements for refueling time. The resulting requirements suggest that, at least for this specific application, no current on-board rechargeable metal hydride satisfies these requirements.
description: 11 pages, 12 figures, 2 tables, to appear in the International Journal of Hydrogen Energy
Enhancement of Perpendicular Magnetic Anisotropy and Transmission of Spin-Hall-Effect-Induced Spin Currents by a Hf Spacer Layer in W/Hf/CoFeB/MgO Layer
Creators: name: Pai, Chi-Feng
name: Nguyen, Minh-Hai
name: Belvin, Carina
name: Vilela-Leão, Luis Henrique
name: Ralph, D. C.
name: Buhrman, R. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report that strong perpendicular magnetic anisotropy of the ferromagnetic layer in a W/CoFeB/MgO multilayer structure can be established by inserting a Hf layer as thin as 0.25 nm between the W and CoFeB layers. The Hf spacer also allows transmission of spin currents generated by an in-plane charge current in the W layer to apply strong spin torque on the CoFeB, thereby enabling current-driven magnetic switching. The antidamping-like and field-like components of the spin torque exerted on a 1 nm CoFeB layer are of comparable magnitudes in this geometry. Both components originate from the spin Hall effect in the underlying W layer.
Producing a Set of Models for the Iron Homeostasis Network
Creators: name: Mobilia, Nicolas
name: Donzé, Alexandre
name: Moulis, Jean Marc
name: Fanchon, Éric
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Logic in Computer Science (cs.LO)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: This paper presents a method for modeling biological systems which combines formal techniques on intervals, numerical simulations and satisfaction of Signal Temporal Logic (STL) formulas. The main modeling challenge addressed by this approach is the large uncertainty in the values of the parameters due to the experimental difficulties of getting accurate biological data. This method considers intervals for each parameter and a formal description of the expected behavior of the model. In a first step, it produces reduced intervals of possible parameter values. Then by performing a systematic search in these intervals, it defines sets of parameter values used in the next step. This procedure aims at finding a sub-space where the model robustly behaves as expected. We apply this method to the modeling of the cellular iron homeostasis network in erythroid progenitors. The produced model describes explicitly the regulation mechanism which acts at the translational level.
description: In Proceedings HSB 2013, arXiv:1308.5724
Power-Broadening-Free Correlation Spectroscopy in Cold Atoms
Creators: name: Florez, H. M.
name: Cruz, L. S.
name: de Miranda, M. H. G.
name: de Oliveira, R. A.
name: Tabosa, J. W. R.
name: Martinelli, M.
name: Felinto, D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report a detailed investigation on the properties of correlation spectra for cold atoms under the condition of Electromagnetically Induced Transparency (EIT). We describe the transition in the system from correlation to anti-correlation as the intensity of the fields increases. Such transition occurs for laser frequencies around the EIT resonance, which is characterized by a correlation peak. The transition point between correlation and anti-correlation is independent of power broadening and provides directly the ground-state coherence time. We introduce a method to extract in real time the correlation spectra of the system. The experiments were done in two distinct magneto-optical traps (MOT), one for cesium and the other for rubidium atoms, employing different detection schemes. A simplified theory is introduced assuming three-level atoms in $Λ$ configuration interacting with a laser with stochastic phase fluctuations, providing a good agreement with the experimental observations.
description: 8 pages, 10 figures, submitted to Physical Review A
The Quillen category of finite p-groups and coclass theory
Creators: name: Eick, Bettina
name: Green, David J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: Coclass theory can be used to define infinite families of finite p-groups of a fixed coclass. It is conjectured that the groups in one of these infinite families all have isomorphic mod-p cohomology rings. Here we prove that almost all groups in one of these infinite families have equivalent Quillen categories. We also show how the Quillen categories of the groups in an infinite family are connected to the Quillen category of their associated infinite pro-p-group of finite coclass.
Multi-path multi-component self-accelerating beams through spectrum-engineered position mapping
Creators: name: Hu, Yi
name: Bongiovanni, Domenico
name: Chen, Zhigang
name: Morandotti, Roberto
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We introduce the concept of spatial spectral phase gradient, and demonstrate, both theoretically and experimentally, how this concept could be employed for generating single- and multi-path self-accelerating beams. In particular, we show that the trajectories of the accelerating beams are determined a priori by different key spatial frequencies through direct spectrum-to-distance mapping. In the non-paraxial regime, our results clearly illustrate the breakup of Airy beams from a different perspective, and demonstrate how circular, elliptic or hyperbolic accelerating beams can be created by judiciously engineering the spectral phase. Furthermore, we found that the accelerating beams still follow the predicted trajectory also for vectorial wavefronts. Our approach not only generalizes the idea of Fourier-space beam engineering along arbitrary convex trajectories, but also offers new possibilities for beam/pulse manipulation not achievable through standard direct real-space approaches or by way of time-domain phase modulation.
description: 10 pages, 4 figures
A Hybrid Model of a Genetic Regulatory Network in Mammalian Sclera
Creators: name: Shu, Qin
name: Ardila, Diana Catalina
name: Sanfelice, Ricardo G.
name: Geest, Jonathan P. Vande
Publisher: name: arXiv
Year: 2013
Subjects: subject: Systems and Control (eess.SY)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Biological sciences

description: Myopia in human and animals is caused by the axial elongation of the eye and is closely linked to the thinning of the sclera which supports the eye tissue. This thinning has been correlated with the overproduction of matrix metalloproteinase (MMP-2), an enzyme that degrades the collagen structure of the sclera. In this short paper, we propose a descriptive model of a regulatory network with hysteresis, which seems necessary for creating oscillatory behavior in the hybrid model between MMP-2, MT1-MMP and TIMP-2. Numerical results provide insight on the type of equilibria present in the system.
description: In Proceedings HSB 2013, arXiv:1308.5724
Leaky mode analysis of luminescent thin films: the case of ZnO on sapphire
Creators: name: Aad, Roy
name: Divay, Laurent
name: Bruyant, Aurelien
name: Blaize, Sylvain
name: Couteau, Christophe
name: Rogers, Dave John
name: Lerondel, Gilles
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Zinc oxide (ZnO) epitaxial thin films grown on c-sapphire substrates by pulsed laser deposition were investigated using angle and polarization-resolved photoluminescence spectroscopy. Side-emission spectra differed significantly from surface-emission spectra in exhibiting dominant, narrow, polarization-resolved peaks. These spectral features were attributed to leaky substrate modes in the layers. Observations were first verified using transmission calculations with non-adjustable parameters, which took into account the dispersion, the anisotropy of the ZnO refractive index and the dependence on film thickness. Results were consistent with Fabry-Perot-like interference being the origin of the distinctive ZnO luminescence observed at grazing incidence angles. A second analysis, based on the source terms method, was used in order to retrieve the bulk emission properties, including the wavelength-dependent quantum yield and the emission anisotropy. While ZnO thin films were considered here, this analysis method can be extended to any luminescent thin film of similar geometry, demonstrating the potential of leaky mode analysis for probing passive and active material properties.
A test-tube model for rainfall
Creators: name: Wilkinson, Michael
Publisher: name: arXiv
Year: 2014
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: If the temperature of a cell containing two partially miscible liquids is changed very slowly, so that the miscibility is decreased, microscopic droplets nucleate, grow and migrate to the interface due to their buoyancy. The system may show an approximately periodic variation of the turbidity of the mixture, as the mean droplet size fluctuates. These precipitation events are analogous to rainfall from warm clouds. This paper considers a theoretical model for these experiments. After nucleation the initial growth is by Ostwald ripening, followed by a finite-time runaway growth of droplet sizes due to larger droplets sweeping up smaller ones. The model predicts that the period $Δt$ and the temperature sweep rate $ξ$ are related by $Δt\sim C ξ^{-3/7}$, and is in good agreement with experiments. The coefficient $C$ has a power-law divergence approaching the critical point of the miscibility transition: $C\sim (T-T_{\rm c})^{-η}$, and the critical exponent $η$ is determined.
description: 5 pages, no figures
Superconducting nanowire single-photon detector with ultralow dark count rate using cold optical filters
Creators: name: Shibata, H.
name: Shimizu, K.
name: Takesue, H.
name: Tokura, Y.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report the fabrication of a superconducting nanowire single-photon detector (SSPD or SNSPD) with an ultralow dark count rate. By introducing optical band-pass filters at the input of the SSPD and cooling the filters at 3 K, the dark count rate is reduced to less than 1/100 at low bias. An SSPD with 0.1 cps dark count rate and 5.6% system detection efficiency at 1550 nm wavelength is obtained. We show that a quantum key distribution (QKD) over 300 km of fiber is possible based on a numerical calculation assuming a differential phase shift QKD protocol implemented with our SSPDs.
Skyrme functional from a three-body pseudo-potential of second-order in gradients. Formalism for central terms
Creators: name: Sadoudi, J.
name: Duguet, T.
name: Meyer, J.
name: Bender, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In one way or the other, all modern parametrizations of the nuclear energy density functional (EDF) do not respect the exchange symmetry associated with Pauli's principle. It has been recently shown that this practice jeopardizes multi-reference (MR) EDF calculations by contaminating the energy with spurious self-interactions that, for example, lead to finite steps or even divergences when plotting it as a function of collective coordinates. As of today, the only viable option to bypass these pathologies is to rely on EDF kernels that enforce Pauli's principle from the outset by strictly and exactly deriving from a genuine, i.e. density-independent, Hamilton operator. We wish to develop the most general Skyrme-like EDF parametrization containing linear, bilinear and trilinear terms in the density matrices with up to two gradients, under the key constraint that it derives strictly from an effective Hamilton operator. The most general three-body Skyrme-like pseudo-potential containing up to two gradient operators is constructed to generate the trilinear part. The present study is limited to central terms. Spin-orbit and tensor will be addressed in a forthcoming paper. (See paper for full abstract)
description: 38 pages revtex, no figure