cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Rates of convergence of the Adaptive LASSO estimators to the Oracle distribution and higher order refinements by the bootstrap
Creators: name: Chatterjee, A.
name: Lahiri, S. N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Zou [J. Amer. Statist. Assoc. 101 (2006) 1418-1429] proposed the Adaptive LASSO (ALASSO) method for simultaneous variable selection and estimation of the regression parameters, and established its oracle property. In this paper, we investigate the rate of convergence of the ALASSO estimator to the oracle distribution when the dimension of the regression parameters may grow to infinity with the sample size. It is shown that the rate critically depends on the choices of the penalty parameter and the initial estimator, among other factors, and that confidence intervals (CIs) based on the oracle limit law often have poor coverage accuracy. As an alternative, we consider the residual bootstrap method for the ALASSO estimators that has been recently shown to be consistent; cf. Chatterjee and Lahiri [J. Amer. Statist. Assoc. 106 (2011a) 608-625]. We show that the bootstrap applied to a suitable studentized version of the ALASSO estimator achieves second-order correctness, even when the dimension of the regression parameters is unbounded. Results from a moderately large simulation study show marked improvement in coverage accuracy for the bootstrap CIs over the oracle based CIs.
description: Published in at http://dx.doi.org/10.1214/13-AOS1106 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Short-wavelength secondary instabilities in homogeneous and stably stratified shear flows
Creators: name: Aravind, H. M.
name: Mathur, Manikandan
name: Dubos, Thomas
Publisher: name: arXiv
Year: 2017
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We present a numerical investigation of three-dimensional, short-wavelength linear instabilities in Kelvin-Helmholtz (KH) vortices in homogeneous and stratified environments. The base flow, generated using two-dimensional numerical simulations, is characterized by the Reynolds number and the Richardson number defined based on the initial one-dimensional velocity and buoyancy profiles. The local stability equations are then solved on closed streamlines in the vortical base flow, which is assumed quasi-steady. For the unstratified case, the elliptic instability at the vortex core dominates at early times, before being taken over by the hyperbolic instability at the vortex edge. For the stratified case, the early time instabilities comprise a dominant elliptic instability at the core and a hyperbolic instability strongly influenced by stratification at the vortex edge. At intermediate times, the local approach shows a new branch of instability (convective branch) that emerges at the vortex core and subsequently moves towards the vortex edge. A few more convective instability branches appear at the vortex core and move away, before coalescing to form the most unstable region inside the vortex periphery at large times. The dominant instability characteristics from the local approach are shown to be in good qualitative agreement with results from global instability studies for both homogeneous and stratified cases. Compartmentalized analyses are then used to elucidate the role of shear and stratification on the identified instabilities. The role of buoyancy is shown to be critical after the primary KH instability saturates, with the dominant convective instability shown to occur in regions with the strongest statically unstable layering. We conclude by highlighting the potentially insightful role that the local approach may offer in understanding the secondary instabilities in other flows.
description: Submitted to J. Fluid Mech., 20 pages, 10 figures
The Influence of Management and Environment on Local Health Department Organizational Structure and Adaptation: A Longitudinal Network Analysis
Creators: name: Keeling, Jonathan
name: Pryde, Julie A.
name: Merrill, Jacqueline A.
Publisher: name: Columbia University
Year: 2013
Subjects: Health services administration
Medical care
System theory
Public health

description: Objective: The nation's 2862 local health departments (LHDs) are the primary means for assuring public health services for all populations. The objective of this study is to assess the effect of organizational network analysis on management decisions in LHDs and to demonstrate the technique's ability to detect organizational adaptation over time. Design and Setting: We conducted a longitudinal network analysis in a full-service LHD with 113 employees serving about 187 000 persons. Network survey data were collected from employees at 3 times: months 0, 8, and 34. At time 1 the initial analysis was presented to LHD managers as an intervention with information on evidence-based management strategies to address the findings. At times 2 and 3 interviews documented managers' decision making and events in the task environment. Results: Response rates for the 3 network analyses were 90%, 97%, and 83%. Postintervention (time 2) results showed beneficial changes in network measures of communication and integration. Screening and case identification increased for chlamydia and for gonorrhea. Outbreak mitigation was accelerated by cross-divisional teaming. Network measurements at time 3 showed LHD adaptation to H1N1 and budget constraints with increased centralization. Task redundancy increased dramatically after National Incident Management System training. Conclusions: Organizational network analysis supports LHD management with empirical evidence that can be translated into strategic decisions about communication, allocation of resources, and addressing knowledge gaps. Specific population health outcomes were traced directly to management decisions based on network evidence. The technique can help managers improve how LHDs function as organizations and contribute to our understanding of public health systems.
Revolusi – Tage des Aufbruchs
Creators: name: Eckert, Andreas
Publisher: name: südostasien – Zeitschrift für Politik • Kultur • Dialog
Year: 2023

description: Als Indonesien nach dem Zweiten Weltkrieg unabhängig wurde, begann das Zeitalter der Dekolonisierung. David van Reybrouck erzählt in seinem gleichnamigen Buch die Geschichte einer Revolution
description: südostasien – Zeitschrift für Politik • Kultur • Dialog, Bd. 40 Nr. 1 (2023): Entwicklung für wen?
Energie n°52, Juin 2014
Creators: name: Amara, Mohamed
name: Barchasz, Céline
name: Carella, Alexandre
name: Dauscher, Anne
name: Drouard, Emmanuel
name: Fix, Thomas
name: Foldyna, Martin
name: Gaubicher, Joel
name: Guillet, Nicolas
name: Innocent, Christophe
name: Jovanovic, Slavisa
name: Kokoh, Boniface
name: Le Rouzo, Judikael
name: Lethien, Christophe
name: Morin, Arnaud
name: Pauporte, Thierry
name: Poure, Philippe
name: Savelli, Guillaume
name: Seassal, Christian
name: Stockholm, John
name: Tetreault, Nicolas
name: Torchio, Philippe
name: Volz, Sebastian
name: Vossier, Alexis
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2014
Subjects: subject: NEMS
subject: Strategic Watch
subject: Batterie
subject: Pile à combustible
subject: Accumulateur
subject: Lithium
subject: Cathode
subject: Electrode
subject: Anode
subject: Catalyseur
subject: Membrane
subject: Biopile
subject: Stockage
subject: Photovoltaique
subject: Cellule Solaire
subject: Rendement
subject: Conversion
subject: Couche mince
subject: Perovskite
subject: Substrat
subject: Organique
subject: Silicium
subject: Concentration
subject: Jonction
subject: Photon
subject: Thermoélectricité
subject: Thermoélectrique
subject: Récupération
subject: Energie
subject: piezo

description: Strategic Watch OMNT–ENERGIE; n° 52; Juin 2014 ; 1-43 ; ISSN en cours
description: Analyse d’experts
On the Coherent Labelling Conjecture of a Polyhedron in Three Dimensions
Creators: name: Kumar, C. P. Anil
Publisher: name: arXiv
Year: 2018
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 52B10 (Primary)

description: In this article we consider an open conjecture about coherently labelling a polyhedron in three dimensions. We exhibit all the forty eight possible coherent labellings of a tetrahedron. We also exhibit that some simplicial polyhedra like bipyramids, Kleetopes, gyroelongated bipyramids are coherently labellable. Also we prove that pyramids over $n$-gons for $n\geq 4$, which are not simplicial polyhedra, are coherently labellable. We prove that among platonic solids, the cube and the dodecahedron are not coherently labellable, even though, the tetrahedron, the octahedron and the icosahedron are coherently labellable. Unlike the case of a tetrahedron, in general for a polyhedron, we show that a coherent labelling need not induce a coherent labelling at a vertex. We prove the main conjecture in the affirmative for a certain class of polyhedra which are constructible from tetrahedra through certain types of edge and face vanishing tetrahedron attachments. As a consequence we conclude that a cube cannot be obtained from only these type of tetrahedron attachments. We also give an obstruction criterion for a polyhedron to be not coherently labellable and consequentially show that any polyhedron obtained from a pyramid with its apex chopped off is not coherently labellable. Finally with the suggestion of the affirmative results we prove the main theorem that any simplicial polyhedron is coherently labellable.
description: 29 pages, 14 figures
Application of Quantum Stochastic Calculus to Feedback Control
Creators: name: Boukas, Andreas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: Optimization and Control (math.OC)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The basic aspects of the Hudson-Parthasarathy quantum stochastic calculus and of the Accardi-Fagnola-Quaegebeur representation free stochastic calculus are presented. The basic features of the stochastic calculus for the square of white noise recently developed by Accardi-Boukas are described. The feedback control problem for stochastic processes driven by quantum noise is solved
description: arXiv admin note: substantial text overlap with arXiv:1308.1699
Perceptual Decision Making “Through the Eyes” of a Large-scale Neural Model of V1
Creators: name: Shi, Jianing V.
name: Wielaard, Jim
name: Smith, R. Theodore
name: Sajda, Paul
Publisher: name: Columbia University
Year: 2013
Subjects: subject: Biomedical engineering
subject: Neurosciences
subject: FOS: Clinical medicine
subject: Psychology
subject: FOS: Psychology

description: Sparse coding has been posited as an efficient information processing strategy employed by sensory systems, particularly visual cortex. Substantial theoretical and experimental work has focused on the issue of sparse encoding, namely how the early visual system maps the scene into a sparse representation. In this paper we investigate the complementary issue of sparse decoding, for example given activity generated by a realistic mapping of the visual scene to neuronal spike trains, how do downstream neurons best utilize this representation to generate a “decision.” Specifically we consider both sparse (L1-regularized) and non-sparse (L2 regularized) linear decoding for mapping the neural dynamics of a large-scale spiking neuron model of primary visual cortex (V1) to a two alternative forced choice (2-AFC) perceptual decision. We show that while both sparse and non-sparse linear decoding yield discrimination results quantitatively consistent with human psychophysics, sparse linear decoding is more efficient in terms of the number of selected informative dimension.
Is the Amyloid Hypothesis of Alzheimer’s disease therapeutically relevant?
Creators: name: Teich, Andrew Franklin
name: Arancio, Ottavio
Publisher: name: Columbia University
Year: 2012
Subjects: Pathology

description: The conventional view of AD (Alzheimer’s disease) is that much of the pathology is driven by an increased load of β-amyloid in the brain of AD patients (the ‘Amyloid Hypothesis’). Yet, many therapeutic strategies based on lowering β-amyloid have so far failed in clinical trials. This failure of β-amyloid-lowering agents has caused many to question the Amyloid Hypothesis itself. However, AD is likely to be a complex disease driven by multiple factors. In addition, it is increasingly clear that β-amyloid processing involves many enzymes and signalling pathways that play a role in a diverse array of cellular processes. Thus the clinical failure of β-amyloid-lowering agents does not mean that the hypothesis itself is incorrect; it may simply mean that manipulating β-amyloid directly is an unrealistic strategy for therapeutic intervention, given the complex role of β-amyloid in neuronal physiology. Another possible problem may be that toxic β-amyloid levels have already caused irreversible damage to downstream cellular pathways by the time dementia sets in. We argue in the present review that a more direct (and possibly simpler) approach to AD therapeutics is to rescue synaptic dysfunction directly, by focusing on the mechanisms by which elevated levels of β-amyloid disrupt synaptic physiology.
Learning from Neighbors about a Changing State
Creators: name: Dasaratha, Krishna
name: Golub, Benjamin
name: Hak, Nir
Publisher: name: arXiv
Year: 2018
Subjects: subject: Theoretical Economics (econ.TH)
subject: Computer Science and Game Theory (cs.GT)
subject: Social and Information Networks (cs.SI)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences

description: Agents learn about a changing state using private signals and their neighbors' past estimates of the state. We present a model in which Bayesian agents in equilibrium use neighbors' estimates simply by taking weighted sums with time-invariant weights. The dynamics thus parallel those of the tractable DeGroot model of learning in networks, but arise as an equilibrium outcome rather than a behavioral assumption. We examine whether information aggregation is nearly optimal as neighborhoods grow large. A key condition for this is signal diversity: each individual's neighbors have private signals that not only contain independent information, but also have sufficiently different distributions. Without signal diversity $\unicode{x2013}$ e.g., if private signals are i.i.d. $\unicode{x2013}$ learning is suboptimal in all networks and highly inefficient in some. Turning to social influence, we find it is much more sensitive to one's signal quality than to one's number of neighbors, in contrast to standard models with exogenous updating rules.
description: final manuscript submitted to journal -- revised exposition throughout, corrected details in Section 3.1
Seite an Seite in Parallelwelten
Creators: name: Faludi, Laura
Publisher: name: südostasien – Zeitschrift für Politik • Kultur • Dialog
Year: 2023

description: Hla ist Rakhine Buddhistin und Nyo Nyo ist Muslim Rohingya. Im konfliktreichen Rakhine-Staat von Myanmar versuchen sie, friedlich miteinander zu leben und Leben zu retten. Wie das geht, zeigt der Dokumentarfilm “Midwives”.
description: südostasien – Zeitschrift für Politik • Kultur • Dialog, Bd. 40 Nr. 1 (2023): Entwicklung für wen?
Experimental stress-strain analysis of tapered silica optical fibers with nanofiber waist
Creators: name: Holleis, Sigrid
name: Hoinkes, Thomas
name: Wuttke, Christian
name: Schneeweiss, Philipp
name: Rauschenbeutel, Arno
Publisher: name: arXiv
Year: 2014
Subjects: subject: Classical Physics (physics.class-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We experimentally determine tensile force-elongation diagrams of tapered optical fibers with a nanofiber waist. The tapered optical fibers are produced from standard silica optical fibers using a heat and pull process. Both, the force-elongation data and scanning electron microscope images of the rupture points indicate a brittle material. Despite the small waist radii of only a few hundred nanometers, our experimental data can be fully explained by a nonlinear stress-strain model that relies on material properties of macroscopic silica optical fibers. This is an important asset when it comes to designing miniaturized optical elements as one can rely on the well-founded material characteristics of standard optical fibers. Based on this understanding, we demonstrate a simple and non-destructive technique that allows us to determine the waist radius of the tapered optical fiber. We find excellent agreement with independent scanning electron microscope measurements of the waist radius.
Energie n°53, Septembre 2014
Creators: name: Alleno, Eric
name: Amara, Mohamed
name: Bourgeois, Olivier
name: Cuevas, Fermin
name: Dauscher, Anne
name: Demirci, Umit
name: Drouard, Emmanuel
name: Galayko, Dimitri
name: Gourbilleau, Fabrice
name: Joubert, Jean-Marc
name: Jovanovic, Slavisa
name: Lallart, Mickaël
name: Latroche, Michel
name: Le Cras, Frédéric
name: Le Rouzo, Judikael
name: Poure, Philippe
name: Reynier, Yves
name: Savelli, Guillaume
name: Seassal, Christian
name: Stockholm, John
name: Torchio, Philippe
name: Vossier, Alexis
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2014
Subjects: subject: NEMS
subject: Strategic Watch
subject: Batterie
subject: Pile à combustible
subject: Accumulateur
subject: Lithium
subject: Cathode
subject: Electrode
subject: Anode
subject: Catalyseur
subject: Membrane
subject: Carbone
subject: Stockage
subject: Photovoltaique
subject: Cellule Solaire
subject: Rendement
subject: Conversion
subject: Couche mince
subject: Perovskite
subject: Substrat
subject: Organique
subject: Silicium
subject: Concentration
subject: Jonction
subject: Photon
subject: Thermoélectricité
subject: Thermoélectrique
subject: Récupération
subject: Energie
subject: piezo
subject: Hydrogène
subject: Ammoniaborane
subject: Délithiation
subject: Tomographie
subject: Photonique
subject: Puits quantique
subject: Drone
subject: Flexoélectricité
subject: Thermomécanique
subject: Capteur
subject: Vibratoire
subject: Borohydrure
subject: Nanofils
subject: Absorption

description: Strategic Watch OMNT–ENERGIE; n° 53; Septembre 2014 ; 1-37 ; ISSN en cours
description: Analyse d’experts
On the governing equations for Poisson and Skellam processes time-changed by inverse subordinators
Creators: name: Buchak, K. V.
name: Sakhno, L. M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: In the paper we present the governing equations for marginal distributions of Poisson and Skellam processes time-changed by inverse subordinators. The equations are given in terms of convolution-type derivatives.
Militär GmbH
Creators: name: Gutierrez, Eric D. U.
name: Schwieger, Jörg
Publisher: name: südostasien – Zeitschrift für Politik • Kultur • Dialog
Year: 2023

description: Wie Wirtschaftsinteressen und unternehmerisches Engagement des Militärs die Erreichung der Ziele für nachhaltige Entwicklung gefährden.
description: südostasien – Zeitschrift für Politik • Kultur • Dialog, Bd. 40 Nr. 1 (2023): Entwicklung für wen?
A map-based method for eliminating systematic modes from galaxy clustering power spectra with application to BOSS
Creators: name: Bahr-Kalus, B.
name: Percival, W. J.
name: Bacon, D. J.
name: Mueller, E. -M.
name: Samushia, L.
name: Verde, L.
name: Ross, A. J.
name: Bernal, J. L.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We develop a practical methodology to remove modes from a galaxy survey power spectrum that are associated with systematic errors. We apply this to the BOSS CMASS sample, to see if it removes the excess power previously observed beyond the best-fit $Λ$CDM model on very large scales. We consider several possible sources of data contamination, and check whether they affect the number of targets that can be observed and the power spectrum measurements. We describe a general framework for how such knowledge can be transformed into template fields. Mode subtraction can then be used to remove these systematic contaminants at least as well as applying corrective weighting to the observed galaxies, but benefits from giving an unbiased power. Even after applying templates for all known systematics, we find a large-scale power excess, but this is reduced compared with that observed using the weights provided by the BOSS team. This excess is at much larger scales than the BAO scale and does not affect the main results of BOSS. However, it will be important for the measurement of a scale-dependent bias due to primordial non-Gaussianity. The excess is beyond that allowed by any simple model of non-Gaussianity matching Planck data, and is not matched in other surveys. We show that this power excess can further be reduced but is still present using "phenomenological" templates, designed to consider further potentially unknown sources of systematic contamination. As all discrepant angular modes can be removed using "phenomenological" templates, the potentially remaining contaminant acts radially.
description: 19 pages, accepted by MNRAS
Vision-based macroscopic pedestrian models
Creators: name: Degond, Pierre
name: Appert-Rolland, Cécile
name: Pettré, Julien
name: Theraulaz, Guy
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We propose a hierarchy of kinetic and macroscopic models for a system consisting of a large number of interacting pedestrians. The basic interaction rules are derived from earlier work where the dangerousness level of an interaction with another pedestrian is measured in terms of the derivative of the bearing angle (angle between the walking direction and the line connecting the two subjects) and of the time-to-interaction (time before reaching the closest distance between the two subjects). A mean-field kinetic model is derived. Then, three different macroscopic continuum models are proposed. The first two ones rely on two different closure assumptions of the kinetic model, respectively based on a monokinetic and a von Mises-Fisher distribution. The third one is derived through a hydrodynamic limit. In each case, we discuss the relevance of the model for practical simulations of pedestrian crowds.
Variational Bayes Approximations for Clustering via Mixtures of Normal Inverse Gaussian Distributions
Creators: name: Subedi, Sanjeena
name: McNicholas, Paul D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Methodology (stat.ME)
subject: Computation (stat.CO)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Parameter estimation for model-based clustering using a finite mixture of normal inverse Gaussian (NIG) distributions is achieved through variational Bayes approximations. Univariate NIG mixtures and multivariate NIG mixtures are considered. The use of variational Bayes approximations here is a substantial departure from the traditional EM approach and alleviates some of the associated computational complexities and uncertainties. Our variational algorithm is applied to simulated and real data. The paper concludes with discussion and suggestions for future work.
Energie n°54, Décembre 2014
Creators: name: Amara, Mohamed
name: Carella, Alexandre
name: Cuevas, Fermin
name: Drouard, Emmanuel
name: Fix, Thomas
name: Galayko, Dimitri
name: Gourbilleau, Fabrice
name: Guillet, Nicolas
name: Innocent, Christophe
name: Joubert, Jean-Marc
name: Joubert, Olivier
name: Jovanovic, Slavisa
name: Latroche, Michel
name: Naghavi, Negar
name: Poure, Philippe
name: Tetreault, Nicolas
name: Vossier, Alexis
name: Zlotea, Claudia
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2014
Subjects: subject: NEMS
subject: Strategic Watch
subject: Batterie
subject: Souple
subject: Pile à combustible
subject: Céramique
subject: Mobile
subject: Electrolyse
subject: Accumulateur
subject: Lithium
subject: Cathode
subject: Electrode
subject: Anode
subject: Catalyseur
subject: Membrane
subject: Carbone
subject: Stockage
subject: Photovoltaique
subject: Cellule Solaire
subject: Multi-jonction
subject: Rendement
subject: Conversion
subject: Up-conversion
subject: Potassium
subject: Couche mince
subject: Perovskite
subject: Substrat
subject: Organique
subject: Silicium
subject: Concentration
subject: Jonction
subject: Photon
subject: Thermoélectricité
subject: Thermoélectrique
subject: Seebeck
subject: Récupération
subject: Energie
subject: piezo
subject: Hydrogène
subject: Ammoniaborane
subject: Délithiation
subject: Tomographie
subject: Photonique
subject: Puits quantique
subject: Drone
subject: Flexoélectricité
subject: Thermomécanique
subject: Capteur
subject: Vibratoire
subject: Borohydrure
subject: Nanofils
subject: Absorption

description: Strategic Watch OMNT–ENERGIE; n° 54; Décembre 2014 ; 1-31 ; ISSN en cours
description: Analyse d’experts
Cardy algebras and sewing constraints, II
Creators: name: Kong, Liang
name: Li, Qin
name: Runkel, Ingo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: This is the part II of a two-part work started in arXiv:0807.3356 [math.QA]. In part I, Cardy algebras were studied, a notion which arises from the classification of genus-0,1 open-closed rational conformal field theories. In this part, we prove that a Cardy algebra also satisfies the higher genus factorisation and modular-invariance properties formulated in arXiv:hep-th/0612306 in terms of the notion of a solution to the sewing constraints. We present the proof by showing that the latter notion, which is defined as a monoidal natural transformation, can be expressed in terms of generators and relations, which correspond exactly to the defining data and axioms of a Cardy algebra.
description: 79 pages, 244 figures, comments are welcome
Environmental, Health and Safety Impacts of Nanoparticles: European Observatory on Nanosafety n°06, September 2012
Creators: name: Thill, Antoine
name: Flahaut, Emmanuel
name: Ross, Brynony
name: Baeza, Armelle
name: Van Den Brule, Sybille
name: Petitot, Fabrice
name: Manier, Nicolas
name: Aschberger, Karin
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2012
Subjects: subject: Environmental, Health and Safety Impacts of Nanoparticles
subject: Strategic Watch
subject: Detection and Characterization
subject: Toxicology: In vitro studies
subject: Toxicology: In vivo studies
subject: Environmental Impacts
subject: Risk Assessment and Risk Management

description: Strategic Watch OMNT–Environmental, Health and Safety Impacts of Nanoparticles: European Observatory on Nanosafety; n°06; September 2012; 1-19
description: Analyse d’experts
Super-Resolution for Hyperspectral and Multispectral Image Fusion Accounting for Seasonal Spectral Variability
Creators: name: Borsoi, Ricardo Augusto
name: Imbiriba, Tales
name: Bermudez, José Carlos Moreira
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Image fusion combines data from different heterogeneous sources to obtain more precise information about an underlying scene. Hyperspectral-multispectral (HS-MS) image fusion is currently attracting great interest in remote sensing since it allows the generation of high spatial resolution HS images, circumventing the main limitation of this imaging modality. Existing HS-MS fusion algorithms, however, neglect the spectral variability often existing between images acquired at different time instants. This time difference causes variations in spectral signatures of the underlying constituent materials due to different acquisition and seasonal conditions. This paper introduces a novel HS-MS image fusion strategy that combines an unmixing-based formulation with an explicit parametric model for typical spectral variability between the two images. Simulations with synthetic and real data show that the proposed strategy leads to a significant performance improvement under spectral variability and state-of-the-art performance otherwise.
Landwirtschaft ohne Bäuer*innen?
Creators: name: Wetzlmaier, Marina
Publisher: name: südostasien – Zeitschrift für Politik • Kultur • Dialog
Year: 2023

description: Die globale Ernährungskrise ist eine Folge der industriellen Landwirtschaft. Aktivist Joseph Purugganan spricht im Interview über die Auswirkungen der ‘Grünen Revolution’ und ihre kontinuierliche Anwendung bis heute.
description: südostasien – Zeitschrift für Politik • Kultur • Dialog, Bd. 40 Nr. 1 (2023): Entwicklung für wen?
How much should you ask? On the question structure in QA systems
Creators: name: Basaj, Dominika
name: Rychalska, Barbara
name: Biecek, Przemyslaw
name: Wroblewska, Anna
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Datasets that boosted state-of-the-art solutions for Question Answering (QA) systems prove that it is possible to ask questions in natural language manner. However, users are still used to query-like systems where they type in keywords to search for answer. In this study we validate which parts of questions are essential for obtaining valid answer. In order to conclude that, we take advantage of LIME - a framework that explains prediction by local approximation. We find that grammar and natural language is disregarded by QA. State-of-the-art model can answer properly even if 'asked' only with a few words with high coefficients calculated with LIME. According to our knowledge, it is the first time that QA model is being explained by LIME.
description: Accepted to Analyzing and interpreting neural networks for NLP workshop at EMNLP 2018
Enhanced Photodetection in Graphene-Integrated Photonic Crystal Cavity
Creators: name: Shiue, Ren-Jye
name: Gan, Xuetao
name: Gao, Yuanda
name: Li, Luozhou
name: Yao, Xinwen
name: Szep, Attila
name: Walker,, Dennis
name: Hone, James
name: Englund, Dirk
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate the controlled enhancement of photoresponsivity in a graphene photodetector by coupling to slow light modes in a long photonic crystal linear defect cavity. Near the Brillouin zone (BZ) boundary, spectral coupling of multiple cavity modes results in broad-band photocurrent enhancement from 1530 nm to 1540 nm. Away from the BZ boundary, individual cavity resonances enhance the photocurrent eight-fold in narrow resonant peaks. Optimization of the photocurrent via critical coupling of the incident field with the graphene-cavity system is discussed. The enhanced photocurrent demonstrates the feasibility of a wavelength-scale graphene photodetector for efficient photodetection with high spectral selectivity and broadband response.
Landverlust in Kambodscha – Gewinne in Deutschland
Creators: name: Göpel, Raphael
name: Göpel, Raphael
name: Pilorge, Naly
Publisher: name: südostasien – Zeitschrift für Politik • Kultur • Dialog
Year: 2023

description: In Kambodscha haben Millionen Menschen einen Mikrokredit aufgenommen. Ihre Rechte werden verletzt. Auch deutsche Akteure profitieren davon.
description: südostasien – Zeitschrift für Politik • Kultur • Dialog, Bd. 40 Nr. 1 (2023): Entwicklung für wen?
Electronique Moléculaire Mars 2015
Creators: name: Berciaud, Stéphane
name: Fabre, Bruno
name: Huc, Vincent
name: Jousselme, Bruno
name: Limot, Laurent
name: Siri, Olivier
name: Weiss, Jean
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2014
Subjects: subject: Elecronique Moléculaire
subject: Veille Stratégique
subject: Molécules
subject: Graphène et matériaux 2D
subject: Méthodes génériques de fabrication, d'assemblage et de caractérisation

description: Veille stratégique OMNT–Electronique Moléculaire ; n° 65; Mars 2015 ; 1-14 ; ISSN 1775-917X
description: Analyse d’experts
Jakarta für wen?
Creators: name: Stadler, Mark Philip
Publisher: name: südostasien – Zeitschrift für Politik • Kultur • Dialog
Year: 2023

description: Indonesiens Hauptstadt Jakarta wächst rasant. Doch mangelhafte Infrastruktur, Umweltprobleme und die Folgen des Klimawandels bedrohen große Teile der Bevölkerung, allen voran die städtischen Armen.
description: südostasien – Zeitschrift für Politik • Kultur • Dialog, Bd. 40 Nr. 1 (2023): Entwicklung für wen?
Does it care what you asked? Understanding Importance of Verbs in Deep Learning QA System
Creators: name: Rychalska, Barbara
name: Basaj, Dominika
name: Biecek, Przemyslaw
name: Wroblewska, Anna
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: In this paper we present the results of an investigation of the importance of verbs in a deep learning QA system trained on SQuAD dataset. We show that main verbs in questions carry little influence on the decisions made by the system - in over 90% of researched cases swapping verbs for their antonyms did not change system decision. We track this phenomenon down to the insides of the net, analyzing the mechanism of self-attention and values contained in hidden layers of RNN. Finally, we recognize the characteristics of the SQuAD dataset as the source of the problem. Our work refers to the recently popular topic of adversarial examples in NLP, combined with investigating deep net structure.
description: Accepted to Analyzing and interpreting neural networks for NLP workshop at EMNLP 2018
Electronique Moléculaire Juin 2014
Creators: name: Berciaud, Stéphane
name: Oughaddou, Hamid
name: Chérioux, Frédéric
name: Dujardin, Gérald
name: Fabre, Bruno
name: Jousselme, Bruno
name: Huc, Vincent
name: Limot, Laurent
name: Vuillaume, Dominique
name: Weiss, Jean
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2014
Subjects: subject: Elecronique Moléculaire
subject: Veille Stratégique
subject: Molécules
subject: Graphène et matériaux 2D
subject: Méthodes génériques de fabrication, d'assemblage et de caractérisation

description: Veille stratégique OMNT–Electronique Moléculaire ; n° 62; Juin 2014 ; 1-25 ; ISSN 1775-917X
description: Analyse d’experts
Abhängigkeit statt Demokratie
Creators: name: Ear, Sophal
name: Suna-Kiefer, Leonie
Publisher: name: südostasien – Zeitschrift für Politik • Kultur • Dialog
Year: 2023

description: Westliche Entwicklungsgelder und chinesische Investitionen untergraben demokratische Ansätze. Die Regierenden fühlen sich nicht der Bevölkerung verpflichtet.
description: südostasien – Zeitschrift für Politik • Kultur • Dialog, Bd. 40 Nr. 1 (2023): Entwicklung für wen?
Electronique Moléculaire Septembre 2014
Creators: name: Bucher, Christophe
name: Chérioux, Frédéric
name: Dujardin, Gérald
name: Lacroix, Jean-Christophe
name: Latil, Sylvain
name: Weiss, Jean
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2014
Subjects: subject: Elecronique Moléculaire
subject: Veille Stratégique
subject: Molécules
subject: Graphène et matériaux 2D
subject: Méthodes génériques de fabrication, d'assemblage et de caractérisation

description: Veille stratégique OMNT–Electronique Moléculaire ; n° 63; Septembre 2014 ; 1-16 ; ISSN 1775-917X
description: Analyse d’experts
Ausverkauf von Land und Ressourcen
Creators: name: Göpel, Raphael
Publisher: name: südostasien – Zeitschrift für Politik • Kultur • Dialog
Year: 2023

description: Beim Treffen der wirtschaftsstärksten Staaten (G20) auf Bali warb die indonesische Regierung für ihr Entwicklungsmodell. NGOs kritisieren dieses Modell als fehlgeleitet.
description: südostasien – Zeitschrift für Politik • Kultur • Dialog, Bd. 40 Nr. 1 (2023): Entwicklung für wen?
Electronique Moléculaire Décembre 2014
Creators: name: Berciaud, Stéphane
name: Bucher, Christophe
name: Coraux, Johann
name: Dujardin, Gérald
name: Huc, Vincent
name: Jousselme, Bruno
name: Limot, Laurent
name: Weiss, Jean
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2014
Subjects: subject: Elecronique Moléculaire
subject: Veille Stratégique
subject: Molécules
subject: Graphène et matériaux 2D
subject: Méthodes génériques de fabrication, d'assemblage et de caractérisation

description: Veille stratégique OMNT–Electronique Moléculaire ; n° 64; Décembre 2014 ; 1-13 ; ISSN 1775-917X
description: Analyse d’experts
Correlated Components of Ongoing EEG Point to Emotionally Laden Attention – a Possible Marker of Engagement?
Creators: name: Dmochowski, Jacek P.
name: Sajda, Paul
name: Dias, Joao
name: Parra, Lucas C.
Publisher: name: Columbia University
Year: 2012
Subjects: subject: Biomedical engineering
subject: Bioinformatics
subject: FOS: Computer and information sciences
subject: Neurosciences
subject: FOS: Clinical medicine

description: Recent evidence from functional magnetic resonance imaging suggests that cortical hemodynamic responses coincide in different subjects experiencing a common naturalistic stimulus. Here we utilize neural responses in the electroencephalogram (EEG) evoked by multiple presentations of short film clips to index brain states marked by high levels of correlation within and across subjects. We formulate a novel signal decomposition method which extracts maximally correlated signal components from multiple EEG records. The resulting components capture correlations down to a one-second time resolution, thus revealing that peak correlations of neural activity across viewings can occur in remarkable correspondence with arousing moments of the film. Moreover, a significant reduction in neural correlation occurs upon a second viewing of the film or when the narrative is disrupted by presenting its scenes scrambled in time. We also probe oscillatory brain activity during periods of heightened correlation, and observe during such times a significant increase in the theta band for a frontal component and reductions in the alpha and beta frequency bands for parietal and occipital components. Low-resolution EEG tomography of these components suggests that the correlated neural activity is consistent with sources in the cingulate and orbitofrontal cortices. Put together, these results suggest that the observed synchrony reflects attention- and emotion-modulated cortical processing which may be decoded with high temporal resolution by extracting maximally correlated components of neural activity.
Organic Electronics March 2015
Creators: name: Attias, André-Jean
name: Clerc, Raphael
name: Fave, Jean-Louis
name: Horowitz, Gilles
name: Sanaur, Sébastien
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2014
Subjects: subject: Organic Electronics
subject: Strategic watch
subject: Design and Architectures
subject: Materials
subject: Modelling
subject: Conference Report

description: Strategic Watch OMNT–Organic Electronics; n° 31; March 2015 ; 1-9 ; ISSN 1775-917X
description: Analyse d’experts
Modelling strong seismic ground motion: three-dimensional loading path versus wavefield polarization
Creators: name: D'Avila, Maria Paola Santisi
name: Lenti, Luca
name: Semblat, Jean-François
Publisher: name: arXiv
Year: 2013
Subjects: subject: Geophysics (physics.geo-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Seismic waves due to strong earthquakes propagating in surficial soil layers may both reduce soil stiffness and increase the energy dissipation into the soil. To investigate seismic wave amplification in such cases, past studies have been devoted to one-directional shear wave propagation in a soil column (1D-propagation) considering one motion component only (1C-polarization). Three independent purely 1C computations may be performed ('1D-1C' approach) and directly superimposed in the case of weak motions (linear behaviour). This research aims at studying local site effects by considering seismic wave propagation in a 1-D soil profile accounting for the influence of the 3-D loading path and non-linear hysteretic behaviour of the soil. In the proposed '1D-3C' approach, the three components (3C-polarization) of the incident wave are simultaneously propagated into a horizontal multilayered soil. A 3-D non-linear constitutive relation for the soil is implemented in the framework of the Finite Element Method in the time domain. The complex rheology of soils is modelled by mean of a multisurface cyclic plasticity model of the Masing-Prandtl-Ishlinskii-Iwan type. The great advantage of this choice is that the only data needed to describe the model is the modulus reduction curve. A parametric study is carried out to characterize the changes in the seismic motion of the surficial layers due to both incident wavefield properties and soil non-linearities. The numerical simulations show a seismic response depending on several parameters such as polarization of seismic waves, material elastic and dynamic properties, as well as on the impedance contrast between layers and frequency content and oscillatory character of the input motion. The 3-D loading path due to the 3C-polarization leads to multi-axial stress interaction that reduces soil strength and increases non-linear effects. The non-linear behaviour of the soil may have beneficial or detrimental effects on the seismic response at the free surface, depending on the energy dissipation rate. Free surface time histories, stress-strain hysteresis loops and in-depth profiles of octahedral stress and strain are estimated for each soil column. The combination of three separate 1D-1C non-linear analyses is compared to the proposed 1D-3C approach, evidencing the influence of the 3C-polarization and the 3-D loading path on strong seismic motions.
Conformation of a rare nucleoside in the anti-codon loop of tRNAs: Potential energy calculations for 2′-O-methyl cytidine
Creators: name: Stellman, Steven D.
name: Hingerty, B.
name: Broyde, Suse B.
name: Langridge, R.
Publisher: name: Columbia University
Year: 1975
Subjects: subject: Biochemistry
subject: Biophysics
subject: Genetics
subject: FOS: Biological sciences

description: The classical potential energy of 2′-O-methyl cytidine was calculated using contributions from van der Waals', electrostatic, and torsional terms. All five conformational angles, namely χ, Ψ, the methoxy angles m₁ and m₂ which are unique to O′-methylated nucleosides, and the sugar pucker P were varied simultaneously, and the energy was minimized with respect to these parameters. An extensive search of conformation space was made, particularly with respect to the sugar pucker. At the predicted global minimum, χ and Ψ are anti-gg, P is C(2′)-endo-C(3′)-exo, and the methyl group is staggered with respect to the sugar. This calculated minimum agrees very well with the recently determined crystal structure of 2′-O-methyl cytidine. Thus, 2′-O-methylation still permits the conformational regions of the common nucleosides to be adopted. However, we infer that the predicted C(2′)-endo sugar pucker results from the added methyl group, since cytidine is C(3′)-endo in the crystal, and the common ribopyrimidine nucleosides generally favor C(3′)-endo.
Organic Electronics September 2014
Creators: name: Bréfuel, Nicolas
name: Clerc, Raphael
name: Fave, Jean-Louis
name: Horowitz, Gilles
name: Lmimouni, Kamal
name: Sanaur, Sébastien
name: Rannou, Patrice
name: Vérilhac, Jean-Marie
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2014
Subjects: subject: Organic Electronics
subject: Strategic watch
subject: Design and Architectures
subject: Materials
subject: Modelling
subject: Conference Report

description: Strategic Watch OMNT–Organic Electronics; n° 29; September 2014 ; 1-16 ; ISSN 1775-917X
description: Analyse d’experts
Comparative epidemiology of tobacco-related cancers
Creators: name: Wynder, Ernst L.
name: Stellman, Steven D.
Publisher: name: Columbia University
Year: 1977
Subjects: Epidemiology
Public health
Oncology

description: In a retrospective study, interviews were obtained with 3,716 patients with histologically proven cancer of the lung (Kreyberg types I and II), mouth, larynx, esophagus, or bladder and with over 18,000 controls. For each of these cancers, the relative risk of both male and female present smokers increased with the quantity smoked and the duration of the habit. The strongest increase occurred for cancer of the lung and larynx, and the least increase occurred for cancer of the esophagus and bladder. For exsmokers the risk decreased with years of cessation. The risk for mouth cancer of pipe and cigar smokers who inhaled much less than cigarette smokers was less than that of the latter and increased with the quantity smoked. The risk of mouth, larynx, and esophagus cancer among smokers increased with the quantity of alcohol consumed. Greater smoking habits and lesser cessation rates were noted among lower socioeconomic groups, suggesting that these groups will bear an ever increasing proportion of the burden of tobacco-related cancer.
Application of three-dimensional interactive graphics in X-ray crystallographic analysis
Creators: name: Stellman, Steven D.
Publisher: name: Columbia University
Year: 1975
Subjects: subject: Biochemistry
subject: Computer science
subject: Genetics
subject: FOS: Biological sciences

description: A program called XpY was written for the PDP-10/LDS-1 at the Princeton University Computer Graphics Laboratory, for generating and displaying models of dinucleoside phosphates. The molecule GpC, a member of this class and a fragment of the nucleic acid RNA, was subjected to X-ray diffraction analysis. The paper describes the importance of model building in X-ray analysis, and shows step by step how XpY was used to deduce the atomic coordinates of GpC from the experimental data. The program documentation is also included as an Appendix. A subjective critique of graphics is made in the Conclusions section.
Organic Electronics December 2014
Creators: name: Attias, André-Jean
name: Bonassieux, Yvan
name: Clerc, Raphael
name: Fave, Jean-Louis
name: Horowitz, Gilles
name: Leamitre, Noella
name: Lmimouni, Kamal
name: Moineau Chane-Ching, Kathleen
name: Sanaur, Sébastien
name: Simonetti, Olivier
name: Toupance, Thierry
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2014
Subjects: subject: Organic Electronics
subject: Strategic watch
subject: Design and Architectures
subject: Materials
subject: Modelling
subject: Conference Report

description: Strategic Watch OMNT–Organic Electronics; n° 30; December 2014 ; 1-23 ; ISSN 1775-917X
description: Analyse d’experts
Structure of guanylyl-3′,5′-cytidine monophosphate. II. Description of the molecular and crystal structure of the calcium derivative in space group P2₁
Creators: name: Hingerty, B.
name: Subramanian, E.
name: Stellman, Steven D.
name: Broyde, Suse B.
name: Sato, T.
name: Langridge, R.
Publisher: name: Columbia University
Year: 1975
Subjects: subject: Biochemistry
subject: Biophysics
subject: Genetics
subject: FOS: Biological sciences

description: The structural features of calcium guanosine-3′,5′-cytidine monophosphate (GpC) have been elucidated by X-ray diffraction analysis. The molecule was crystallized in space group P2₁ with cell constants of a = 21.224 Å, b = 34.207 Å, c = 9.327 Å, and β = 90.527°, Z = 8. The hydration of the crystal is 21% by weight with 72 water molecules in the unit cell. The four GpC molecules in the asymmetric unit occur as two Watson-Crick hydrogen-bonded dimers related by a pseudo-C face centering. Each dimer consists of two independent GpC molecules whose bases are hydrogen bonded to each other in the traditional Watson-Crick fashion. Each dimer possesses a pseudo twofold axis broken by a calcium ion and associated solvent. The four molecules are conformationally similar to helical RNA, but are not identical to it or to each other. Instead, values of conformational angles reflect the intrinsic flexibility of the molecule within the range of basic helical conformations. All eight bases are anti, sugars are all C3′-endo, and the C4′-C5′ bond rotations are gauche-gauche. The R factor is 12.6% for 2918 observed reflections at 1.2-Å resolution.