cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Axisymmetric multiphase lattice Boltzmann method
Creators: name: Srivastava, Sudhir
name: Perlekar, Prasad
name: Boonkkamp, Jan H. M. ten Thije
name: Verma, Nishith
name: Toschi, Federico
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A lattice Boltzmann method for axisymmetric multiphase flows is presented and validated. The method is capable of accurately modeling flows with variable density. We develop the classic Shan-Chen multiphase model [ Phys. Rev. E 47 1815 (1993)] for axisymmetric flows. The model can be used to efficiently simulate single and multiphase flows. The convergence to the axisymmetric Navier-Stokes equations is demonstrated analytically by means of a Chapmann-Enskog expansion and numerically through several test cases. In particular, the model is benchmarked for its accuracy in reproducing the dynamics of the oscillations of an axially symmetric droplet and on the capillary breakup of a viscous liquid thread. Very good quantitative agreement between the numerical solutions and the analytical results is observed.
Instrumentation pour la Biologie n°31, Juillet 2007
Creators: name: Berthier, Jean
name: Griscom, Laurent
name: Silberzan, Pascal
name: Druon, Christian
name: Tabourier, Pierre
name: Agache, Vincent
name: Fattal, Elias
name: Legrand, Philippe
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2007
Subjects: subject: Instrumentation pour la Biologie
subject: Veille strategique
subject: Technologies
subject: Microfluidique
subject: Manipulation de cellules et mesures de parametres
subject: Detection
subject: Delivrance de principes actifs
subject: Integration

description: Veille Strategique OMNT–Instrumentation pour la Biologie; n°31; Juillet 2007; 1-25
description: Analyse d’experts
Toeplitz determinants with merging singularities
Creators: name: Claeys, T.
name: Krasovsky, I.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: Classical Analysis and ODEs (math.CA)
subject: Complex Variables (math.CV)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study asymptotic behavior for determinants of $n\times n$ Toeplitz matrices corresponding to symbols with two Fisher-Hartwig singularities at the distance $2t\ge0$ from each other on the unit circle. We obtain large $n$ asymptotics which are uniform for $0
description: 72 pages, 6 figures. Formulas (1.22) and (5.45) corrected. We are grateful to Roman Riser for pointing us to these corrections
Towards a geometric interpretation of generalized fractional integrals - Erdelyi-Kober type integrals on $R^N$ as an example
Creators: name: Herrmann, Richard
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: A family of generalized Erdelyi-Kober type fractional integrals is interpreted geometrically as a distortion of the rotationally invariant integral kernel of the Riesz fractional integral in terms of generalized Cassini ovaloids on $R^N$. Based on this geometric view, several extensions are discussed.
description: 8 pages, 2 figures
Micro Nanosystems for Biology n°58, September 2014
Creators: name: Berthelot, Thomas
name: Villard, Catherine
name: Temple-Boyer, Pierre
name: Galas, Jean-Christophe
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2014
Subjects: subject: Micro Nanosystems for Biology
subject: Strategic Watch
subject: Microfabrication and Materials
subject: Cell manipulation and analysis
subject: Detection
subject: Biomimetism

description: Strategic Watch OMNT–Micro Nanosystems for biology; n° 58; September 2014; 1-11; ISSN 2109-0653X
description: Analyse d’experts
Energiewende Südostasiens dominiert von Unternehmensinteressen
Creators: name: Batangan, Tala
Publisher: name: südostasien – Zeitschrift für Politik • Kultur • Dialog
Year: 2023

description: Südostasien: Die Bereitstellung von bezahlbarer und ‘sauberer’ Energie stellt die Region vor große Herausforderungen: Wie und durch wen kann die nötige Energiewende finanziert werden?
description: südostasien – Zeitschrift für Politik • Kultur • Dialog, Bd. 40 Nr. 1 (2023): Entwicklung für wen?
A Study Of Epitaxial Growth Of Caf2 On Silicon
Creators: name: Howard, L.
Publisher: name: London South Bank University
Year: 1989

description: The alkaline earth fluorides are good insulators at room temperature and have received significant attention as epitaxial dielectrics on semiconductors, their crystal structure and lattice parameters resembling those of common semiconductors. Such dielectrics enable passivation of semiconductors lacking stable oxides, isolation of devices on one substrate, and fabrication of 3-dimensional epitaxial heterostructures. The CaF, /Si system was the structure investigated since the room temperature lattice mismatch is only 0.6% .A vacuum system was therefore developed for the deposition of CaF, onto silicon, and an RBS system, incorporating detector cooling, developed to establish the dependence of epitaxy on substrate temperature using channelling of 340 keV protons (giving an enhanced depth resolution and improved sensitivity to light elements compared to 2 Mev Het analysis). Epitaxial growth was obtained on n-type $i(111) and 98i(100) substrates at 400-750°C and 575-675°C respectively. A reaction between the CaF, and silicon occurred at higher temperatures producing non-uniform films. The epitaxy was also dependent on film thickness, the optimum de-channelled fractions obtained in the film of 8.25% and 15.2% for Si(111) and Si(100) substrates respectively were unobtainable for films under 1200 A . The insulator surface morphology was examined using Scanning Electron Microscopy. Epitaxial films on S8i(111) were generally smooth, while preferential growth along directions was observed for epitaxial insulators on 8i(100), possibly due to slip along the {111} fluorite cleavage planes resulting from differences in the thermal expansion coefficients of CaF, and silicon and an increase in lattice mismatch with substrate temperature, although no cracking of the insulator was observed. The insulation and electrical properties of the films were investigated. Film resistivities upto 5E8 Jicm and breakdown voltages of approximately 1E5 V/cm were obtained from I-V characteristics. The C-V characteristics of several films exhibited large flat-band voltage shifts and significant hysteresis consistent with poor insulator- semiconductor interfaces and contaminated insulators, possibly caused by a comparatively poor deposition vacuum (1E-7 torr rather than 1E-10 torr or better for MBE-grown films), insufficient control over deposition rate, and/or inadequate substrate preparation. Thus good epitaxy of CaF, was readily obtainable on Si(111) substrates, but proved more difficult on Si(100). The CaF, insulation properties were poor, however, suggesting modifications to the deposition technique and use of higher quality (better than 99%) source material may be necessary to produce satisfactory insulators.
Instrumentation for Biology n°35, October 2008
Creators: name: Berthier, Jean
name: Colpo, Pascal
name: Podgorski, Thomas
name: Khan Malek, Chantal
name: Senez, Vincent
name: Thomy, Vincent
name: Roupioz, Yoann
name: Marche, Patrice
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2008
Subjects: subject: Instrumentation for Biology
subject: Strategic Watch
subject: Technologies
subject: Surface Patterning
subject: Separation
subject: Microfabrication and Materials
subject: Microfluidics
subject: Cell Manipulation and Analysis
subject: Integration
subject: Imaging
subject: Business Highlight

description: Strategic Watch OMNT–Instrumentation for Biology; n°35; October 2008; 1-25
description: Analyse d’experts
Neural Representation of Task Difficulty and Decision Making during Perceptual Categorization: A Timing Diagram
Creators: name: Philiastides, Marios G.
name: Ratcliff, Roger
name: Sajda, Paul
Publisher: name: Columbia University
Year: 2006
Subjects: subject: Biomedical engineering
subject: Neurosciences
subject: FOS: Clinical medicine
subject: Psychology
subject: FOS: Psychology

description: When does the brain know that a decision is difficult to make? How does decision difficulty affect the allocation of neural resources and timing of constituent cortical processing? Here, we use single-trial analysis of electroencephalography (EEG) to identify neural correlates of decision difficulty and relate these to neural correlates of decision accuracy. Using a cued paradigm, we show that we can identify a component in the EEG that reflects the inherent task difficulty and not simply a correlation with the stimulus. We find that this decision difficulty component arises ≈220 ms after stimulus presentation, between two EEG components that are predictive of decision accuracy [an “early” (170 ms) and a “late” (≈300 ms) component]. We use these results to develop a timing diagram for perceptual decision making and relate the component activities to parameters of a diffusion model for decision making.
Constraints on anisotropic cosmic expansion from supernovae
Creators: name: Bahr-Kalus, Benedict
name: Schwarz, Dominik J.
name: Seikel, Marina
name: Wiegand, Alexander
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We test the isotropy of the expansion of the Universe by estimating the hemispherical anisotropy of supernova type Ia (SN Ia) Hubble diagrams at low redshifts (z<0.2). We compare the best fit Hubble diagrams in pairs of hemispheres and search for the maximal asymmetric orientation. For an isotropic Universe, we expect only a small asymmetry due to noise and the presence of nearby structures. This test does not depend on the assumed content of the Universe, the assumed model of gravity, or the spatial curvature of the Universe. The expectation for possible fluctuations due to large scale structure is evaluated for the Λcold dark matter (ΛCDM) model and is compared to the supernova data from the Constitution set for four different light curve fitters, thus allowing a study of the systematic effects. The expected order of magnitude of the hemispherical asymmetry of the Hubble expansion agrees with the observed one. The direction of the Hubble asymmetry is established at 95% confidence level (C.L.) using both, the MLCS2k2 and the SALT II light curve fitter. The highest expansion rate is found towards (l, b) ~ (-35°,-19°), which agrees with directions reported by other studies. Its amplitude is not in contradiction to expectations from the ΛCDM model. The measured Hubble anisotropy is ΔH/H ~ 0.026. With 95% C.L. the expansion asymmetry is ΔH/H<0.038.
Micro Nanosystems for Biology n°36, December 2008
Creators: name: Khan Malek, Chantal
name: Agache, Vincent
name: Senez, Vincent
name: Roupioz, Yoann
name: Silberzan, Pascal
name: Berthier, Jean
name: Marquette, Christophe
name: Marche, Patrice
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2008
Subjects: subject: Micro Nanosystems for Biology
subject: Strategic Watch
subject: Technologies
subject: Microfabrication and Materials
subject: Microfluidics
subject: Cell Manipulation and Analysis
subject: Separation
subject: Detection
subject: Lab on chip integration
subject: Imaging

description: Strategic Watch OMNT–Micro Nanosystems for biology; n°36; December 2008; 1-23
description: Analyse d’experts
Single production of an exotic bottom partner at LHC
Creators: name: Alvarez, Ezequiel
name: Da Rold, Leandro
name: Vietto, Juan Ignacio Sanchez
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study single production and detection at the LHC run II of exotic partners of the bottom quark. For masses larger than 1 TeV single production can dominate over pair production that is suppressed due to phase space. The presence of exotic partners of the bottom is motivated in models aiming to solve the $A_{FB}^b$ anomaly measured at LEP and SLC. Minimal models of this type with partial compositeness predict, as the lightest bottom partner, a new fermion V of electric charge -4/3, also called mirror. The relevant coupling for our study is a WVb vertex, which yields a signal that corresponds to a hard W, a hard b-jet and a forward light jet. We design a search strategy for the leptonic decay of the W, which avoids the large QCD multijet background and its large uncertainties. We find that the main backgrounds are W+jets and ttbar, and the key variables to enhance the signal over them are a hard b-jet and the rapidity of the light jet. We determine the discovery reach for the LHC run II, in particular we predict that, for couplings of order ~g/10, this signal could be detected at a 95% confidence level with a mass up to 2.4 TeV using the first 100 fb-1.
description: 27 pages, 9 figures
Die offenen Adern Südostasiens (II)
Creators: name: Del Rosario-Malonzo, Jennifer
name: Lahoy, Rodolfo
Publisher: name: südostasien – Zeitschrift für Politik • Kultur • Dialog
Year: 2023

description: Erst wenn die Länder des Globalen Südens nicht mehr von den Profiteuren des aktuellen Wirtschaftssystems ausgeblutet werden, sind eigene Entwicklungswege wirklich möglich, so das Fazit unseres Autor*innen-Teams der Internationalen Stiftung für sozio-ökonomische Forschung (IBON).
description: südostasien – Zeitschrift für Politik • Kultur • Dialog, Bd. 40 Nr. 1 (2023): Entwicklung für wen?
Micro Nanosystems for Biology n°40, December 2009
Creators: name: Khan Malek, Chantal
name: Semetey, Vincent
name: Thomy, Vincent
name: Roupioz, Yoann
name: Silberzan, Pascal
name: Griscom, Laurent
name: Temple-Boyer, Pierre
name: Leclerc, Eric
name: Berthier, Jean
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2009
Subjects: subject: Micro Nanosystems for Biology
subject: Strategic Watch
subject: Technologies
subject: Microfluidics
subject: Surface Patterning
subject: Cell Manipulation and Analysis
subject: Detection
subject: Separation
subject: Application
subject: Conference Report

description: Strategic Watch OMNT–Micro Nanosystems for biology; n°40; December 2009; 1-29
description: Analyse d’experts
Comparing Neural Correlates of Visual Target Detection in Serial Visual Presentations Having Different Temporal Correlations
Creators: name: Luo, An
name: Sajda, Paul
Publisher: name: Columbia University
Year: 2009
Subjects: subject: Biomedical engineering
subject: Bioinformatics
subject: FOS: Computer and information sciences
subject: Neurosciences
subject: FOS: Clinical medicine

description: Most visual stimuli we experience on a day-to-day basis are continuous sequences, with spatial structure highly correlated in time. During rapid serial visual presentation (RSVP), this correlation is absent. Here we study how subjects’ target detection responses, both behavioral and electrophysiological, differ between continuous serial visual sequences (CSVP), flashed serial visual presentation (FSVP) and RSVP. Behavioral results show longer reaction times for CSVP compared to the FSVP and RSVP conditions, as well as a difference in miss rate between RSVP and the other two conditions. Using mutual information, we measure electrophysiological differences in the electroencephalography (EEG) for these three conditions. We find two peaks in the mutual information between EEG and stimulus class (target vs. distractor), with the second peak occurring 30–40 ms earlier for the FSVP and RSVP conditions. In addition, we find differences in the persistence of the peak mutual information between FSVP and RSVP conditions. We further investigate these differences using a mutual information based functional connectivity analysis and find significant fronto-parietal functional coupling for RSVP and FSVP but no significant coupling for the CSVP condition. We discuss these findings within the context of attentional engagement, evidence accumulation and short-term visual memory.
Functionality and toxicity assessments of nanomaterials using machine learning
Creators: name: Mirzaei, Mahsa
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 350103
subject: Financial accounting

description: This thesis offers an interdisciplinary investigation that encompasses nanotechnology, microbiology, toxicology, and computer science, specifically, machine learning (ML), thereby highlighting the inherently collaborative nature of this research in the nanotechnology field. Understanding the unique properties of nanomaterials (NMs) is critical for predicting their potential toxicity and desired functionality while feeding and supporting the Safe and Sustainable by Design (SSbD) approach, which is currently gaining momentum. Predicting the functionality of NMs and their hazard potential involves identifying specific properties of NMs that are associated with toxicity and their functionality. For example, the size, shape, surface charge, and surface chemistry of NMs can all affect their toxicity on the one hand and their functionality on the other. We demonstrated that, all the assessments must take these properties into consideration, to enable better predictions. Through our research, it has become apparent that the present state of knowledge within the realm of nanotechnology is inadequate in facilitating an accurate assessment of the functionality/hazards of NMs, due to a number of challenges. There exist conspicuous scarcity of studies that have produced systematic and comprehensive datasets. However, in this work we advance the state-of-the art in the field of nanoinformatics by creating comprehensive datasets.
ASEAN als Entwicklungsbooster für Timor-Leste?
Creators: name: Hirsch, Theresa
Publisher: name: südostasien – Zeitschrift für Politik • Kultur • Dialog
Year: 2023

description: Die zukünftige ASEAN- Mitgliedschaft ist für Timor-Leste eine wichtige internationale und regionale Positionierung. Sie ist sicherheitspolitisch von Belang und soll Entwicklungschancen eröffnen
description: südostasien – Zeitschrift für Politik • Kultur • Dialog, Bd. 40 Nr. 1 (2023): Entwicklung für wen?
Micro Nanosystems for Biology n°59, December 2014
Creators: name: Alexis, Vlandas
name: Nicolas, Verplanck
name: Temple-Boyer, Pierre
name: Villard, Catherine
name: Berthier, Jean
name: Griscom, Laurent
name: Ferrigno, Rosaria
name: Lemainque, Arnaud
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2014
Subjects: subject: Micro Nanosystems for Biology
subject: Strategic Watch
subject: Microfabrication and Materials
subject: Cell manipulation and analysis
subject: Detection
subject: Vectorization and targeting
subject: Microfluidics

description: Strategic Watch OMNT–Micro Nanosystems for biology; n° 59; December 2014; 1-21; ISSN 2109-0653X
description: Analyse d’experts
Unified view on linear response of interacting identical and distinguishable particles from multiconfigurational time-dependent Hartree methods
Creators: name: Alon, Ofir E.
name: Streltsov, Alexej I.
name: Cederbaum, Lorenz S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: A unified view on linear response of interacting systems utilizing multicongurational time-dependent Hartree methods is presented. The cases of one-particle and two-particle response operators for identical particles and up to all-system response operators for distinguishable degrees-of-freedom are considered. The working equations for systems of identical bosons (LR-MCTDHB) and identical fermions (LR-MCTDHF), as well for systems of distinguishable particles (LR-MCTDH) are explicitly derived. These linear-response theories provide numerically-exact excitation energies and system's properties, when numerical convergence is achieved in the calculations.
description: 51 pages
Cosmological parameter inference from galaxy clustering: The effect of the posterior distribution of the power spectrum
Creators: name: Bahr-Kalus, Benedict
name: Percival, Will J.
name: Samushia, Lado
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We consider the shape of the posterior distribution to be used when fitting cosmological models to power spectra measured from galaxy surveys. At very large scales, Gaussian posterior distributions in the power do not approximate the posterior distribution $\mathcal{P}_R$ we expect for a Gaussian density field $δ_k$, even if we vary the covariance matrix according to the model to be tested. We compare alternative posterior distributions with $\mathcal{P}_R$, both mode-by-mode and in terms of expected measurements of primordial non-Gaussianity parameterised by $f_\mathrm{NL}$. Marginalising over a Gaussian posterior distribution $\mathcal{P}_f$ with fixed covariance matrix yields a posterior mean value of $f_\mathrm{NL}$ which, for a data set with the characteristics of Euclid, will be underestimated by $\triangle f_\mathrm{NL}=0.4$, while for the data release 9 (DR9) of the Sloan Digital Sky Survey (SDSS)-III Baryon Oscillation Spectroscopic Survey (BOSS) it will be underestimated by $\triangle f_\mathrm{NL}=19.1$. Adopting a different form of the posterior function means that we do not necessarily require a different covariance matrix for each model to be tested: this dependence is absorbed into the functional form of the posterior. Thus, the computational burden of analysis is significantly reduced.
description: 9 pages, 7 figures
Die offenen Adern Südostasiens (I)
Creators: name: Del Rosario-Malonzo, Jennifer
name: Lahoy, Rodolfo
Publisher: name: südostasien – Zeitschrift für Politik • Kultur • Dialog
Year: 2023

description: Ein Autor*innen-Team der nicht-staatlichen, gemeinnützigen philippinischen Stiftung für sozio-ökonomische Forschung (IBON) analysiert und kommentiert das vorherrschende Entwicklungskonzept Südostasiens.
description: südostasien – Zeitschrift für Politik • Kultur • Dialog, Bd. 40 Nr. 1 (2023): Entwicklung für wen?
Micro Nanosystems for Biology n°63, December 2015
Creators: name: Berthier, Jean
name: Oheim, Martin
name: Temple-Boyer, Pierre
name: Ferrigno, Rosaria
name: Galas, Jean-Christophe
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2015
Subjects: subject: Micro and Nanosystems for Biology
subject: Strategic Watch
subject: Microfabrication and Materials
subject: Microfluidics
subject: Detection
subject: Screening
subject: Tissue Engineering

description: Strategic Watch OMNT–Micro Nanosystems for biology; n° 63; December 2015; 1-19; ISSN 2109-0653X
description: Analyse d’experts
'Zeitenwende' in der Entwicklungspolitik?
Creators: name: Märke, Erika
Publisher: name: südostasien – Zeitschrift für Politik • Kultur • Dialog
Year: 2023

description: Im März 2023 veröffentlichte das Bundesministerium für wirtschaftliche Zusammenarbeit und Entwicklung (BMZ) sein Strategiepapier “Feministische Entwicklungspolitik”. Die Kernaussagen werden hier kritisch gewürdigt
description: südostasien – Zeitschrift für Politik • Kultur • Dialog, Bd. 40 Nr. 1 (2023): Entwicklung für wen?
Nanotechnologies Bio-Inspirées Mars 2015
Creators: name: Michon, Thierry
name: Sturgis, James N.
name: Nizak, Clément
name: Hou-Broutin, Yanxia
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2015
Subjects: subject: Nanotechnologies Bio-Inspirées
subject: Veille Stratégique
subject: Ingéniérie des protéines et peptides
subject: Matériaux et surfaces fonctionnelles bioinspirés

description: Veille stratégique OMNT–Nanotechnologies Bio-Inspirées ; n° 18; Mars 2015 ; 1-15 ; ISSN 2109-0661X
description: Analyse d’experts
Wissensfundus mit west-deutscher Brille
Creators: name: Behrens, Julia
Publisher: name: südostasien – Zeitschrift für Politik • Kultur • Dialog
Year: 2023

description: “Geteiltes Land, geteiltes Leid” von Andreas Margara ist ein gelungener Überblick über die Beziehungen Vietnams zu DDR und BRD seit 1945. Aktuelle Debatten fehlen dem Buch jedoch.
description: südostasien – Zeitschrift für Politik • Kultur • Dialog, Bd. 40 Nr. 1 (2023): Entwicklung für wen?
An Accumulative Model for Quantum Theories
Creators: name: Thron, Christopher
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Physics (physics.gen-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: For a general quantum theory that is describable by a path integral formalism, we construct a mathematical model of the universe as a sample point of an accumulative stochastic process. The model give predictions that are nearly identical to the given quantum theory. The model is neither local nor causal in spacetime, but is both local and causal is in a non-observable path space. The probabilistic nature of the squared wavefunction is a natural consequence of the model. We verify the model with simulations, and we discuss possible discrepancies from conventional quantum theory that might be detectable via experiment. Finally, we briefly discuss the physical implications of the model.
description: 14 pages, 5 figures
Nanotechnologies Bio-Inspirées septembre 2014
Creators: name: Mailley, Pascal
name: Mailley, Pascal
name: Bressanelli, Stéphane
name: Sturgis, James
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2014
Subjects: subject: Nanotechnologies Bio-Inspirées
subject: Veille Stratégique
subject: Ingéniérie ADN
subject: Ingéniérie des protéines et des peptides

description: Veille stratégique OMNT–Nanotechnologies Bio-Inspirées ; n° 16; Septembre 2014 ; 1-9 ; ISSN 2109-0661X
description: Analyse d’experts
Unbiased contaminant removal for 3D galaxy power spectrum measurements
Creators: name: Bahr-Kalus, Benedict
name: Percival, Will J
name: Bacon, David
name: Samushia, Lado
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We assess and develop techniques to remove contaminants when calculating the 3D galaxy power spectrum. We separate the process into three separate stages: (i) removing the contaminant signal, (ii) estimating the uncontaminated cosmological power spectrum, (iii) debiasing the resulting estimates. For (i), we show that removing the best-fit contaminant mode subtraction), and setting the contaminated components of the covariance to be infinite (mode deprojection) are mathematically equivalent. For (ii), performing a Quadratic Maximum Likelihood (QML) estimate after mode deprojection gives an optimal unbiased solution, although it requires the manipulation of large $N_{\rm mode}^2$ matrices ($N_{\rm mode}$ being the total number of modes)}, which is unfeasible for recent 3D galaxy surveys. Measuring a binned average of the modes for (ii) as proposed by \citet*[FKP]{Feldman} is faster and simpler, but is sub-optimal and gives rise to a biased solution. We present a method to debias the resulting FKP measurements that does not require any large matrix calculations. We argue that the sub-optimality of the FKP estimator compared with the QML estimator, caused by contaminants is less severe than that commonly ignored due to the survey window.
description: 10 pages, 4 figures; version equivalent to accepted article
Quasar-Galaxy Clustering through Projected Galaxy Counts at z=0.6-1.2
Creators: name: Zhang, Shao-Hua
name: Wang, Ting-Gui
name: Wang, Hui-Yuan
name: Zhou, Hongyan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the spatial clustering of galaxies around quasars at redshifts from 0.6 to 1.2 using the photometric data from Sloan Digital Sky Survey (SDSS) Stripe 82. The quasar and galaxy cross-correlation functions are measured through the projected galaxy number density n(r_p) on scales $0.05
description: 16 pages, 8 figures, accepted for publication in the ApJ
Stiller Realismus im ländlichen Kambodscha
Creators: name: Haller, Elaine
Publisher: name: südostasien – Zeitschrift für Politik • Kultur • Dialog
Year: 2023

description: Der Kurzfilm “Further and Further Away” von Polen Ly zeigt in poetischen Bildern, welche Auswirkungen ein Staudammbau auf das Leben junger, indigener Kambodschaner*innen hat.
description: südostasien – Zeitschrift für Politik • Kultur • Dialog, Bd. 40 Nr. 1 (2023): Entwicklung für wen?
Perfect quantum state transfer using Hadamard diagonalizable graphs
Creators: name: Johnston, Nathaniel
name: Kirkland, Steve
name: Plosker, Sarah
name: Storey, Rebecca
name: Zhang, Xiaohong
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Combinatorics (math.CO)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 05C50, 05C76, 15A18, 81P45

description: Quantum state transfer within a quantum computer can be achieved by using a network of qubits, and such a network can be modelled mathematically by a graph. Here, we focus on the corresponding Laplacian matrix, and those graphs for which the Laplacian can be diagonalized by a Hadamard matrix. We give a simple eigenvalue characterization for when such a graph has perfect state transfer at time $π/2$; this characterization allows one to choose the correct eigenvalues to build graphs having perfect state transfer. We characterize the graphs that are diagonalizable by the standard Hadamard matrix, showing a direct relationship to cubelike graphs. We then give a number of constructions producing a wide variety of new graphs that exhibit perfect state transfer, and we consider several corollaries in the settings of both weighted and unweighted graphs, as well as how our results relate to the notion of pretty good state transfer. Finally, we give an optimality result, showing that among regular graphs of degree at most $4$, the hypercube is the sparsest Hadamard diagonalizable connected unweighted graph with perfect state transfer.
description: 29 pages, 1 figure, minor revisions, fixed typos
Adaptive Thresholding for Improving Sensitivity in Single-trial Simultaneous EEG/fMRI
Creators: name: DeBettencourt, Megan
name: Goldman, Robin
name: Brown, Truman R.
name: Sajda, Paul
Publisher: name: Columbia University
Year: 2011
Subjects: subject: Biomedical engineering
subject: Neurosciences
subject: FOS: Clinical medicine
subject: Psychology
subject: FOS: Psychology

description: A common approach used to fuse simultaneously recorded EEG and fMRI is to correlate trial-by-trial variability in the EEG, or variability of components derived therefrom, with the blood oxygenation level dependent response. When this correlation is done using the conventional univariate approach, for example with the general linear model, there is the usual problem of correcting the statistics for multiple comparisons. Cluster thresholding is often used as the correction of choice, though in many cases it is utilized in an ad hoc way, for example by employing the same cluster thresholds for both traditional regressors (stimulus or behaviorally derived) and EEG-derived regressors. In this paper we describe a resampling procedure that takes into account the a priori statistics of the trial-to-trial variability of the EEG-derived regressors in a way that trades off cluster size and maximum voxel Z-score to properly correct for multiple comparisons. We show that this data adaptive procedure improves sensitivity for smaller clusters of activation, without sacrificing the specificity of the results. Our results suggest that extra care is needed in correcting statistics when the regressor model is derived from noisy and/or uncertain measurements, as is the case for regressors constructed from single-trial variations in the EEG.
Covariant derivative of fermions and all that
Creators: name: Shapiro, Ilya L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences
subject: 53B50, 83C47, 81T20

description: We present detailed pedagogical derivation of covariant derivative of fermions and some related expressions, including commutator of covariant derivatives and energy-momentum tensor of a free Dirac field. On top of that, local conformal transformations for a Dirac fermion in curved spacetime are considered and we obtain the expression for the energy-momentum tensor on the cosmological background.
description: 20 pages, no figures. Misprints corrected in v2, the style of presentation was slightly modified, and general discussions were extended. Fits the version published in Universe
Nanotechnologies Bio-Inspirées Décembre 2014
Creators: name: Filoramo, Arianna
name: Grelet, Eric
name: Michon, Thierry
name: Bressanelli, Stéphane
name: Michon, Thierry
name: Nizak, Clément
name: Descamps, Emeline
name: Grelet, Eric
name: Nizak, Clément
name: Hou-Broutin, Yanxia
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2014
Subjects: subject: Nanotechnologies Bio-Inspirées
subject: Veille Stratégique
subject: Ingéniérie ADN
subject: Ingéniérie des protéines et peptides
subject: Matériaux et surfaces fonctionnelles bioinspirées

description: Veille stratégique OMNT–Nanotechnologies Bio-Inspirées ; n° 17; Décembre 2014 ; 1-19 ; ISSN 2109-0661X
description: Analyse d’experts
NanoConstruction Mars 2015
Creators: name: Bouju, Xavier
name: Gauffre, Fabienne
name: Kahn, Myrtil
name: Ledoux, Gilles
name: Margueritat, Jérémie
name: Mélinon, Patrice
name: Soppera, Olivier
name: Warot-Fonrose, Bénédicte
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2014
Subjects: subject: Nanoconstruction
subject: Veille Stratégique
subject: Nano-objets
subject: Techniques de structuration
subject: Observation et manipulation

description: Veille stratégique OMNT–NanoConstruction ; n° 41; Mars 2015 ; 1-17 ; ISSN 1779-1634
description: Analyse d’experts
Intermediate-Level Visual Representations and the Construction of Surface Perception
Creators: name: Sajda, Paul
name: Finkel, Leif H.
Publisher: name: Columbia University
Year: 1995
Subjects: subject: Biomedical engineering
subject: Neurosciences
subject: FOS: Clinical medicine
subject: Psychology
subject: FOS: Psychology

description: Visual processing has often been divided into three stages—early, intermediate, and high level vision, which roughly correspond to the sensation, perception, and cognition of the visual world. In this paper, we present a network-based model of intermediate-level vision that focuses on how surfaces might be represented in visual cortex. We propose a mechanism for representing surfaces through the establishment of “ownership”—a selective binding of contours and regions. The representation of ownership provides a central locus for visual integration. Our simulations show the ability to segment real and illusory images in a manner consistent with human perception. In addition, through ownership, other processes such as depth, transparency, and surface completion can interact with one another to organize an image into a perceptual scene.
Chronic Physical Health Consequences of Being Injured During the Terrorist Attacks on World Trade Center on September 11, 2001
Creators: name: Brackbill, Robert M.
name: Cone, James E.
name: Farfel, Mark R.
name: Stellman, Steven D.
Publisher: name: Columbia University
Year: 2014
Subjects: Public health
Mental health
Epidemiology

description: Few studies have focused on injuries from the World Trade Center disaster on September 11, 2001. Severe injury has health consequences, including an increased mortality risk 10 years after injury and the risk of mental health problems, such as posttraumatic stress disorder (PTSD). The World Trade Center Health Registry identified 14,087 persons with none of a selected group of preexisting chronic conditions before 2002 who were present during and soon after the World Trade Center attacks, 1,980 of whom reported sustaining 1 or more types of injury (e.g., a broken bone or burn). Survey data obtained during 2003−2004 and 2006−2007 were used to assess the odds of reporting a diagnosis of chronic conditions (heart disease, respiratory disease, diabetes, cancer) up to 5–6 years after the attacks. Number of injury types and probable PTSD were significantly associated with having any chronic conditions diagnosed in 2002–2007. Persons with multiple injuries and PTSD had a 3-fold higher risk of heart disease than did those with no injury and no PTSD, and persons with multiple injuries and with no PTSD had a 2-fold higher risk of respiratory diseases. The present study shows that injured persons with or without comorbid PTSD have a higher risk of developing chronic diseases. Clinicians should be aware of the heightened risk of chronic heart and respiratory conditions among injured persons.
NanoConstruction Décembre 2014
Creators: name: Begin-Colin, Sylvie
name: Bouju, Xavier
name: Duguet, Etienne
name: Duvail, Jean-Luc
name: Gauffre, Fabienne
name: Herlin, Nathalie
name: Kahn, Myrtil
name: Lagoute, Jérôme
name: Plain, Jérôme
name: Warot-Fonrose, Bénédicte
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2014
Subjects: subject: Nanoconstruction
subject: Veille Stratégique
subject: Nano-objets
subject: Techniques de structuration
subject: Observation et manipulation

description: Veille stratégique OMNT–NanoConstruction ; n° 40; Septembre 2014 ; 1-17 ; ISSN 1779-1634
description: Analyse d’experts
‘Pontinization’ of the medulla: two clinical case studies
Creators: name: Teich, Andrew Franklin
name: Hedley-Whyte, E. Tessa
name: Goldman, James E.
Publisher: name: Columbia University
Year: 2011
Subjects: subject: Pathology
subject: Neurosciences
subject: FOS: Clinical medicine

description: The authors report 2 clinical cases of human brainstems where there is blurring of the boundary between the medulla and pons, leading to "pontinization" of the medulla
Energie n°51, Mars 2014
Creators: name: Basset, Philippe
name: Galayko, Dimitri
name: Le Cras, Frédéric
name: Le Perchec, Jérôme
name: Lebouin, Chrystelle
name: Reynier, Yvan
name: Sadki, Said
name: Savelli, Guillaume
name: Stockholm, John
name: Volz, Sebastian
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2014
Subjects: subject: NEMS
subject: Veille Stratégique
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
subject: Vibratoire
subject: Electret
subject: Module

description: Strategic Watch OMNT–ENERGIE; n° 51; Mars 2014 ; 1-43 ; ISSN en cours
description: Analyse d’experts
Sorgfaltspflichten und die indonesische Schuhindustrie
Creators: name: Gojowczyk, Dr. J.
name: Reinwald, E.-M.
Publisher: name: südostasien – Zeitschrift für Politik • Kultur • Dialog
Year: 2023

description: Zur neueren Entwicklungspolitik gehört die Einwirkung auf Lieferketten durch Sorgfaltspflichten. Kann Gesetzgebung zu Lieferketten die Situation der überwiegend weiblichen Beschäftigten in der indonesischen Schuhindustrie verbessern?
description: südostasien – Zeitschrift für Politik • Kultur • Dialog, Bd. 40 Nr. 1 (2023): Entwicklung für wen?
Interdependent network reciprocity in evolutionary games
Creators: name: Wang, Zhen
name: Szolnoki, Attila
name: Perc, Matjaz
Publisher: name: arXiv
Year: 2013
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Computer Science and Game Theory (cs.GT)
subject: Social and Information Networks (cs.SI)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Besides the structure of interactions within networks, also the interactions between networks are of the outmost importance. We therefore study the outcome of the public goods game on two interdependent networks that are connected by means of a utility function, which determines how payoffs on both networks jointly influence the success of players in each individual network. We show that an unbiased coupling allows the spontaneous emergence of interdependent network reciprocity, which is capable to maintain healthy levels of public cooperation even in extremely adverse conditions. The mechanism, however, requires simultaneous formation of correlated cooperator clusters on both networks. If this does not emerge or if the coordination process is disturbed, network reciprocity fails, resulting in the total collapse of cooperation. Network interdependence can thus be exploited effectively to promote cooperation past the limits imposed by isolated networks, but only if the coordination between the interdependent networks is not disturbed.
description: 7 two-column pages, 6 figures; accepted for publication in Scientific Reports
Energie n°55, Mars 2015
Creators: name: Barchasz, Céline
name: Demirci, Umit
name: Drouard, Emmanuel
name: Favre, Wilfried
name: Gaubicher, Joel
name: Gourbilleau, Fabrice
name: Le Rouzo, Judikael
name: Morin, Arnaud
name: Pauporte, Thierry
name: Porcher, Willy
name: Reynier, Yvan
name: Torchio, Philippe
name: Vossier, Alexis
Publisher: name: Observatoire des Micro & Nano Technologies – OMNT
Year: 2015
Subjects: subject: NEMS
subject: Veille Stratégique
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: Hydrogène
subject: Titane
subject: Solubilité
subject: Energie
subject: Polymère
subject: Transport
subject: CPV
subject: Architecture
subject: FOS: Civil engineering

description: Strategic Watch OMNT–ENERGIE; n° 55; Mars 2015 ; 1-29 ; ISSN en cours
description: Analyse d’experts
Unified Representation of Molecules and Crystals for Machine Learning
Creators: name: Huo, Haoyan
name: Rupp, Matthias
Publisher: name: arXiv
Year: 2017
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Accurate simulations of atomistic systems from first principles are limited by computational cost. In high-throughput settings, machine learning can reduce these costs significantly by accurately interpolating between reference calculations. For this, kernel learning approaches crucially require a representation that accommodates arbitrary atomistic systems. We introduce a many-body tensor representation that is invariant to translations, rotations, and nuclear permutations of same elements, unique, differentiable, can represent molecules and crystals, and is fast to compute. Empirical evidence for competitive energy and force prediction errors is presented for changes in molecular structure, crystal chemistry, and molecular dynamics using kernel regression and symmetric gradient-domain machine learning as models. Applicability is demonstrated for phase diagrams of Pt-group/transition-metal binary systems.
description: Final revised version, major update
On the Gauged Kahler Isometry in Minimal Supergravity Models of Inflation
Creators: name: Ferrara, Sergio
name: Fre, Pietro
name: Sorin, Alexander S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper we address the question how to discriminate whether the gauged isometry group G_Sigma of the Kahler manifold Sigma that produces a D-type inflaton potential in a Minimal Supergravity Model is elliptic, hyperbolic or parabolic. We show that the classification of isometries of symmetric cosets can be extended to non symmetric Sigma.s if these manifolds satisfy additional mathematical restrictions. The classification criteria established in the mathematical literature are coherent with simple criteria formulated in terms of the asymptotic behavior of the Kahler potential K(C) = 2 J(C) where the real scalar field C encodes the inflaton field. As a by product of our analysis we show that phenomenologically admissible potentials for the description of inflation and in particular alpha-attractors are mostly obtained from the gauging of a parabolic isometry, this being, in particular the case of the Starobinsky model. Yet at least one exception exists of an elliptic alpha-attractor, so that neither type of isometry can be a priori excluded. The requirement of regularity of the manifold Sigma poses instead strong constraints on the alpha-attractors and reduces their space considerably. Curiously there is a unique integrable alpha-attractor corresponding to a particular value of this parameter.
description: 85 pages, LaTex, 32 jpg figures, 4 tables; v2: title and abstract slightly modified, some assessments improved and made more precise, two figures and one reference added, several misprints corrected
A Benchmark Environment Motivated by Industrial Control Problems
Creators: name: Hein, Daniel
name: Depeweg, Stefan
name: Tokic, Michel
name: Udluft, Steffen
name: Hentschel, Alexander
name: Runkler, Thomas A.
name: Sterzing, Volkmar
Publisher: name: arXiv
Year: 2017
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In the research area of reinforcement learning (RL), frequently novel and promising methods are developed and introduced to the RL community. However, although many researchers are keen to apply their methods on real-world problems, implementing such methods in real industry environments often is a frustrating and tedious process. Generally, academic research groups have only limited access to real industrial data and applications. For this reason, new methods are usually developed, evaluated and compared by using artificial software benchmarks. On one hand, these benchmarks are designed to provide interpretable RL training scenarios and detailed insight into the learning process of the method on hand. On the other hand, they usually do not share much similarity with industrial real-world applications. For this reason we used our industry experience to design a benchmark which bridges the gap between freely available, documented, and motivated artificial benchmarks and properties of real industrial problems. The resulting industrial benchmark (IB) has been made publicly available to the RL community by publishing its Java and Python code, including an OpenAI Gym wrapper, on Github. In this paper we motivate and describe in detail the IB's dynamics and identify prototypic experimental settings that capture common situations in real-world industry control problems.