cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Lean management practice in production and management
Creators: name: Rezanka, Andreas
Publisher: name: TU Wien
Year: 2017
Subjects: subject: Lean
subject: Lean Management
subject: Lean Production
subject: Six Sigma
subject: Kaizen
subject: Kanban
subject: 5-S

description: This Thesis deals with the term Lean and its related terminology Lean Production and Lean Management. Considering that the term Lean has successively developed since its first appearance there are various definitions together with different ways of comprehension. The objective is to compile a theoretical definition respectively to establish a state-of-the-art approach towards the principles of Lean especially compared to more traditional and different types of management based on the research question. Particular focus is put on avoiding waste in any form as well as the complexity of the term Lean and its methods concerning an implementation in existing organization structures.
Controlling Fairness and Bias in Dynamic Learning-to-Rank
Creators: name: Morik, Marco
name: Singh, Ashudeep
name: Hong, Jessica
name: Joachims, Thorsten
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Retrieval (cs.IR)
subject: Computers and Society (cs.CY)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Rankings are the primary interface through which many online platforms match users to items (e.g. news, products, music, video). In these two-sided markets, not only the users draw utility from the rankings, but the rankings also determine the utility (e.g. exposure, revenue) for the item providers (e.g. publishers, sellers, artists, studios). It has already been noted that myopically optimizing utility to the users, as done by virtually all learning-to-rank algorithms, can be unfair to the item providers. We, therefore, present a learning-to-rank approach for explicitly enforcing merit-based fairness guarantees to groups of items (e.g. articles by the same publisher, tracks by the same artist). In particular, we propose a learning algorithm that ensures notions of amortized group fairness, while simultaneously learning the ranking function from implicit feedback data. The algorithm takes the form of a controller that integrates unbiased estimators for both fairness and utility, dynamically adapting both as more data becomes available. In addition to its rigorous theoretical foundation and convergence guarantees, we find empirically that the algorithm is highly practical and robust.
description: First two authors contributed equally. In Proceedings of the 43rd International ACM SIGIR Conference on Research and Development in Information Retrieval 2020
Generating functional analysis of Minority Games with real market histories
Creators: name: Coolen, A. C. C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Trading and Market Microstructure (q-fin.TR)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: It is shown how the generating functional method of De Dominicis can be used to solve the dynamics of the original version of the minority game (MG), in which agents observe real as opposed to fake market histories. Here one again finds exact closed equations for correlation and response functions, but now these are defined in terms of two connected effective non-Markovian stochastic processes: a single effective agent equation similar to that of the `fake' history models, and a second effective equation for the overall market bid itself (the latter is absent in `fake' history models). The result is an exact theory, from which one can calculate from first principles both the persistent observables in the MG and the distribution of history frequencies.
description: 39 pages, 5 postscript figures, iop style
Additional file 1 of From campus to communities: evaluation of the first UK-based bystander programme for the prevention of domestic violence and abuse in general communities
Creators: name: Gainsbury, Alexa N.
name: Fenton, Rachel A.
name: Jones, Cassandra A.
Publisher: name: figshare
Year: 2020
Subjects: subject: Sociology
subject: FOS: Sociology

description: Additional file 1. “Group Composition by number of sessions attended (and gender)”. The table provides details of participant attendance by group gender and session.
Disentangling perturbative and power corrections in precision tau decay analysis
Creators: name: Gorbunov, D. S.
name: Pivovarov, A. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Hadronic tau decay precision data are analyzed with account of both perturbative and power corrections of high orders within QCD. It is found that contributions of high order power corrections are essential for extracting a numerical value for the strange quark mass from the data on Cabibbo suppressed tau decays. We show that with inclusion of new five-loop perturbative corrections in the analysis the convergence of perturbation theory remains acceptable only for few low order moments. We obtain m_s(M_τ) =130\pm 27 MeV in agreement with previous estimates.
description: 6 pages
Bias Dependence and Electrical Breakdown of Small Diameter Single-Walled Carbon Nanotubes
Creators: name: Seidel, R. V.
name: Graham, A. P.
name: Rajasekharan, B.
name: Unger, E.
name: Liebau, M.
name: Duesberg, G. S.
name: Kreupl, F.
name: Hoenlein, W.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The electronic breakdown and the bias dependence of the conductance have been investigated for a large number of catalytic chemical vapor deposition (CCVD) grown single-walled carbon nanotubes (SWCNTs) with very small diameters. The convenient fabrication of thousands of properly contacted SWCNTs was possible by growth on electrode structures and subsequent electroless palladium deposition. Almost all of the measured SWCNTs showed at least weak gate dependence at room temperature. Large differences in the conductance and breakdown behavior have been found for "normal" semiconducting SWCNTs and small band-gap semiconducting (SGS) SWCNTs.
description: submitted to Journal of Applied Physics
Policy brief: Strengthening labour force resilience in the face of change
Creators: name: Lodi, Chiara
name: Marin, Giovanni
name: Tun Oo, Aung
Publisher: name: Zenodo
Year: 2025
Subjects: subject: Resilience
subject: Labour market
subject: Foresight

description: This policy brief emphasises the need for resilience-building policies in digital skills development, drawing lessons from the FICTIONS Lab. Addressing skill gaps is vital for societal resilience, equipping citizens to adapt to economic, technological, and environmental challenges. The participatory and human-centred approaches in the FICTIONS Lab serve as a prototype for similar actions in other contexts.
Local Structure and Macroscopic Properties in PMN-PT and PZN-PT solid solutions
Creators: name: Grinberg, Ilya
name: Rappe, Andrew M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have examined the local structure of PMN-PT and PZN-PT solid solutions using density functional theory. We find that the directions and magnitudes of cation displacement can be explained by an interplay of cation-oxygen bonding, electrostatic dipole-dipole interactions and short-range direct and through oxygen Pb-B-cation repulsive interactions. We find that the Zn ions off-center in the PZN-PT system, which also enables larger Pb and Nb/Ti displacements. The off-centering behavior of Zn lessens Pb-B-cation repulsion, leading to a relaxor to ferroelectric and a rhombohedral to tetragonal phase transition at low PbTiO$_3$ content in the PZN-PT system. We also show that a simple quadratic relationship exists between Pb and B-cation displacements and the temperature maximum of dielectric constant, thus linking the enhanced displacements in PZN-PT systems with the higher transition temperatures.
Impacts sur le secteur laitier européen de scénarios de réforme de la politique laitière communautaire
Creators: name: Bouamra-Mechemache, Zohra
name: Requillart, Vincent
name: Bouamra-Mechemache, Zohra
name: Requillart, Vincent
Publisher: name: Unknown
Year: 2001
Subjects: Agricultural and Food Policy

description: No abstract available
Investigation of Top quark spin correlations at hadron collider
Creators: name: Bernreuther, W.
name: Brandenburg, A.
name: Si, Z. G.
name: Uwer, P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We report on our results about hadronic $t\bar t$ production at NLO QCD including $t, \bar t$ spin effects, especially on $t\bar t$ spin correlations.
description: talk given at the 32nd International Conference on High Energy Physics (ICHEP'04), Beijing, China, 16-22 Aug. 2004
An in vivo CRISPR screen in chick embryos reveals a role for MLLT3 in specification of neural cells from the caudal epiblast.
Creators: name: Libby, Ashley RG
name: Rito, Tiago
name: Radley, Arthur
name: Briscoe, James
Publisher: name: The Francis Crick Institute
Year: 2025
Subjects: classificationCode: Genetics & Genomics
subject: Genetics & Genomics
classificationCode: Developmental Biology
subject: Developmental Biology

description: Tissue development relies on the coordinated differentiation of stem cells in dynamically changing environments. The formation of the vertebrate neural tube from stem cells in the caudal lateral epiblast (CLE) is a well characterized example. Despite an understanding of the signalling pathways involved, the gene regulatory mechanisms remain poorly defined. To address this, we developed a multiplexed in vivo CRISPR screening approach in chick embryos targeting genes expressed in the caudal epiblast and neural tube. This revealed a role for MLLT3, a component of the super elongation complex, in the specification of neural fate. Perturbation of MLLT3 disrupted neural tube morphology and reduced neural fate acquisition. Mutant forms of Retinoic Acid Receptor A lacking the MLLT3 binding domain similarly reduced neural fate acquisition. Together, these findings validate an in vivo CRISPR screen strategy in chick embryos and identify a previously unreported role for MLLT3 in caudal neural tissue specification.
Scénarios de réforme de politique laitière : impact sur le secteur laitier au niveau mondial
Creators: name: Chavas, Jean-Paul
name: Cox, Thomas L.
name: Zhu, Yong
name: Chavas, Jean-Paul
name: Cox, Thomas L.
name: Zhu, Yong
Publisher: name: Unknown
Year: 2001
Subjects: Agricultural and Food Policy

description: Dans beaucoup de pays, une politique d'intervention soutient le revenu des producteurs laitiers. C'est le cas notamment des USA, du Canada, de l'Europe, et du Japon. Cependant, ces dernières années, le secteur laitier a été le sujet de réformes de la politique laitière. Ces réformes ont été motivées par deux facteurs principaux : un souci de réduction du coût des aides publiques au secteur laitier et les négociations multilatérales conduites dans le contexte du GATT et de l'Organisation Mondiale du Commerce (OMC). Ces négociations ont poussé à une réduction des politiques protectionnistes et à une libéralisation des marchés. Cela a abouti à l'accord GATT (Uruguay Round), qui comporte une réduction et tarification des droits de douane appelés "tarifs"), un accès minimum d'importations pour tous les pays membres du GATT et une diminution des subventions aux exportations. Cette présentation donne une analyse des effets probables de l'accord GATT (Uruguay Round) sur le secteur laitier au niveau mondial. On présente également les effets probables qu'aurait un approfondissement de l'accord GATT.
Observable Quantities in Cosmological Models with Strings
Creators: name: Dabrowski, Mariusz P.
name: Stelmach, Jerzy
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Friedman equation for the universe with arbitrary curvature $(k = 0, \pm 1)$, filled with mutually noninteracting pressureless dust, radiation, cosmological constant, and strings is considered. We assume the string domination scenario for the evolution of the latter component. Moreover, we discuss the simplest possibility for the scaling of the string energy density: $\varrho \propto R^{-2}$. For such models we write down the explicit solution of the Friedman equation. We realize that corresponding cosmological models do not essentially differ from those without strings. We find an analytic formula for the radial coordinate $χ$ of a galaxy with a redshift z and express it in terms of astronomical parameters. This relation is then used for the derivation of the astrophysical formulas such as luminosity distance, angular diameter, and source counts, which may serve for testing the string-dominated universe. It seems that the most sensitive test, at least from the formal point of view, is the formula for the number of galaxies $N(z)$ corresponding to a given value of the redshift. We show that the maximum of $N(z)$ strongly depends on the density of strings, especially if the density is large enough to explain the $Ω$ problem. Other tests are also proposed.
description: AASTEX 5.0, 24 pages, 3 figures. A copy of the published paper with a new appendix about models with domain walls. A pioneering work about negative pressure matter (dark energy) observables
Optimal Damping with Hierarchical Adaptive Quadrature for Efficient Fourier Pricing of Multi-Asset Options in Lévy Models
Creators: name: Samet, Michael
name: Bayer, Christian
name: Hammouda, Chiheb Ben
name: Papapantoleon, Antonis
name: Tempone, Raúl
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Finance (q-fin.CP)
subject: Numerical Analysis (math.NA)
subject: Pricing of Securities (q-fin.PR)
subject: FOS: Economics and business
subject: FOS: Mathematics

description: Efficiently pricing multi-asset options is a challenging problem in quantitative finance. When the characteristic function is available, Fourier-based methods are competitive compared to alternative techniques because the integrand in the frequency space often has a higher regularity than that in the physical space. However, when designing a numerical quadrature method for most Fourier pricing approaches, two key aspects affecting the numerical complexity should be carefully considered: (i) the choice of damping parameters that ensure integrability and control the regularity class of the integrand and (ii) the effective treatment of high dimensionality. We propose an efficient numerical method for pricing European multi-asset options based on two complementary ideas to address these challenges. First, we smooth the Fourier integrand via an optimized choice of the damping parameters based on a proposed optimization rule. Second, we employ sparsification and dimension-adaptivity techniques to accelerate the convergence of the quadrature in high dimensions. The extensive numerical study on basket and rainbow options under the multivariate geometric Brownian motion and some Lévy models demonstrates the advantages of adaptivity and the damping rule on the numerical complexity of quadrature methods. Moreover, for the tested two-asset examples, the proposed approach outperforms the COS method in terms of computational time. Finally, we show significant speed-up compared to the Monte Carlo method for up to six dimensions.
Search for the most stable massive state in superstring theory
Creators: name: Chialva, Diego
name: Iengo, Roberto
name: Russo, Jorge G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In ten dimensional type II superstring, all perturbative massive states are unstable, typically with a short lifetime compared to the string scale. We find that the lifetime of the average string state of mass M has the asymptotic form T < const.1/(g^2 M). The most stable string state seems to be a certain state with high angular momentum which can be classically viewed as a circular string rotating in several planes ("the rotating ring"), predominantly decaying by radiating soft massless NS-NS particles, with a lifetime T = c_0 M^5/g^2. Remarkably, the dominant channel is the decay into a similar rotating ring state of smaller mass. The total lifetime to shrink to zero size is ~ M^7. In the presence of D branes, decay channels involving open strings in the final state are exponentially suppressed, so the lifetime is still proportional to M^5, except for a D brane at a special angle or flux. For large mass, the spectrum for massless emission exhibits qualitative features typical of a thermal spectrum, such as a maximum and an exponential tail. We also discuss the decay properties of rotating rings in the case of compact dimensions.
description: 24 pages, 1 figure. Correction on lifetime of average state
How Long Could We Live?
Creators: name: Dorsner, Ilja
name: Perez, Pavel Fileviez
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate model independent upper bounds on total proton lifetime in the context of Grand Unified Theories with the Standard Model matter content. We find them to be $τ_p \leq 1.5^{+0.5}_{-0.3} \times 10^{39} \ \frac{(M_X/10^{16} \textrm{GeV})^4}{α_{GUT}^2} (0.003 \textrm{GeV}^3 / α)^2 \textrm{years}$ and $τ_p \leq 7.1^{+0.0}_{-0.0} \times 10^{36} \ \frac{(M_X/10^{16} \textrm{GeV})^4}{α_{GUT}^2} (0.003 \textrm{GeV}^3 / α)^2 \textrm{years}$ in the Majorana and Dirac neutrino case, respectively. These bounds, in conjunction with experimental limits, put lower limit on the mass $M_X$ of gauge bosons responsible for the proton and bound-neutron decay processes. For central values of relevant input parameters we obtain $M_X \geq 4.3 \times 10^{14} \sqrt{α_{GUT}} \textrm{GeV}$. Our result implies that a large class of non-supersymmetric Grand Unified models, with typical values $α_{GUT} \sim 1/39$, still satisfies experimental constraints on proton lifetime. Our result is independent on any CP violating phase and the only significant source of uncertainty is associated with imprecise knowledge of $α$--the nucleon decay matrix element.
description: 13 pages, 2 figures. Few corrections, new references
EXTRACTION OF ESSENTIAL OILS FROM CASHEW NUTS
Creators: name: Vedant Lal
name: Nita Mehta
Publisher: name: Zenodo
Year: 2021

description:  Essential oils are generally volatile oils. Essential oil is a natural oil typically obtained by distillation and has the characteristic odor of the plant or the other source from which it is extracted. Cashew Nut Shell Liquid(CNSL) is an agricultural byproduct and has a got a wide range of applications. CNSL and its four major components such as anacardic acid(60-65%), cardol (15-20%), cardanol (10%), and traces of methyl cardol are the byproducts of the cashew factories. They are cheap and abundantly available natural resource materials.CNSL occurs as sepia viscous fluid within the soft honeycomb structure of the shell of the cashew . The study was carried out to extract oils from cashew nutshell and characterize the oils, to know their suitability for consumption and other purposes. A variety of extraction methods are available for extracting oil with each having its advantages and disadvantages.
L’analyse économique des marques de distributeurs
Creators: name: Bergès-Sennou, Fabian
name: Caprice, Stephane
name: Bergès-Sennou, Fabian
name: Caprice, Stephane
Publisher: name: Unknown
Year: 2001
Subjects: Agribusiness
Industrial Organization

description: Avec les conflits successifs qui opposent producteurs et distributeurs, la grande distribution se trouve régulièrement placée au cœur des débats publics et accusée par les producteurs de facturer abusivement ses services. Deux évolutions importantes du secteur sont à retenir pour tenter d'analyser ces débats. Sa croissance rapide s'est accompagnée d'une concentration accrue du secteur. Avec plus de 60% de l'ensemble du marché des produits alimentaires, ses principaux acteurs ne sont actuellement plus que cinq, après regroupements successifs (rachats et formation de centrales d'achat), à représenter plus de 90% du marché des produits alimentaires en grande surface 1 : Carrefour-Promodès, Leclerc-Système U (centrale d'achat Lucie), Intermarché, Auchan, Casino-Cora-Monoprix (centrale d'achat Opéra). Un autre changement du secteur est le développement des marques de distributeurs. Ce document présente un panorama des marques de distributeurs et les différents facteurs qui permettent d'expliquer leur développement.
The social and cultural meanings of menstrual suppression
Creators: name: Repta, Robin Ashley
Publisher: name: University of British Columbia
Year: 2011

description: This study investigated how women interpret and experience menstrual suppression, the long-term limiting of women's menstrual cycles using hormonal interventions such as oral contraceptives (birth control pills) or Depo-Provera injections. Asserting that monthly menstruation is detrimental to both women's health and their lifestyles, some physicians and health care professionals are recommending menstrual suppression to women. Critics argue that menstrual suppression is unhealthy and has the potential to harm women physically, emotionally, and psychologically, as menstruation is commonly regarded as a key aspect of being female (Chrisler, 2000). To date, the research on menstrual suppression includes clinical studies and psychological investigations of women's knowledge and openness to menstrual suppression. However, the existing research has not investigated the relationships between women's feelings about their bodies, their senses of femininity and sexuality, their lived menstrual cycle experiences, and their perceptions of menstrual suppression. Building on the extant research, this study used in-depth interviews with 12 women aged 18 to 36 to examine the meanings that women give to menstruation and menstrual suppression. My findings suggest that women's experiences and perceptions of menstrual suppression are complex and bound up with issues of sexuality, femininity, body image, and socialization. The majority of the women described menstruation as a nuisance, embarrassing, "gross", and also as a marker of womanhood. The women also argued that Western culture promoted negative views of menstruation, and they described how they made sense of these menstrual taboos. The women maintained that they would consider menstrual suppression for reasons of convenience, to please their sexual partners, and to feel more positively about their bodies. Reasons to avoid suppressing menstruation included fears about compromising one's health, worries about altering the "natural" menstrual cycle, and uneasiness with pharmaceutical products in general. The findings are discussed in relation to feminist theorizing about menstrual culture and body work. The findings from my research underscore the need for more thorough clinical research on menstrual suppression. As menstrual suppression continues to be recommended to women as a healthier option than monthly menstruation, it is imperative that we understand the effects of menstrual suppression on women's health and lives.
Politiques réglementaires et politiques volontaires : un couple de prescriptions efficace pour limiter les pollutions d’origine agricole?
Creators: name: Nicourt, Christian
name: Girault, Jean-Max
name: Nicourt, Christian
name: Girault, Jean-Max
Publisher: name: Unknown
Year: 2002
Subjects: Community/Rural/Urban Development

description: La mise en œuvre récente de la taxe générale sur les activités polluantes (TGAP) a réactivé le débat sur le choix entre politiques réglementaires ou politiques volontaires pour traiter des pollutions et nuisances issues de la production agricole. Les politiques réglementaires ont vocation à être nationales. Néanmoins, elles laissent une marge de manœuvre conséquente au niveau départemental. Celle-ci permet de prendre en compte les stratégies de la profession agricole qui suscitent ou confortent des politiques volontaires visant la modification des pratiques culturales. Ces politiques ont pour mission d'inciter les agriculteurs à atteindre les objectifs assignés par la société, dans différents contextes d'échelles géographiques, de temps ou de secteurs de production. Nous formulons l'hypothèse que les politiques réglementaires et les politiques volontaires - mises en place par la profession agricole - forment des systèmes prescriptifs à partir desquels les agriculteurs élaborent des normes d'action. A partir d'une démarche historique et ethnologique, cette hypothèse est testée dans deux contextes différents : Dordogne et Seine-et-Marne.
title: Evaluation of N2O emissions of MABR treating SDE
Creators: name: Latschbacher, Markus
Publisher: name: TU Wien
Year: 2017
Subjects: subject: Membranbelüfteter Bioreaktor
subject: Lachgasemissionen
subject: Abwasserreinigung
subject: membrane aerated biofilm reactor (MABR)
subject: nitrous oxide emissions
subject: wastewater treatment

description: Anaerobic digestion is commonly used on bigger wastewater treatment plants to transform organic matters of surplus activated sludge into biogas to gain energy. The effluent from this anaerobe digestion is dewatering which results in a highly ammonium loaded effluent called sludge dewatering effluent (SDE). It is said, that the amount of ammonium in SDE contributes up to 25% of the nitrogen load of a wastewater treatment plant (Meyer et al., 2004). The emission of the greenhouse gas nitrous oxide (N2O) at wastewater treatment plants is gaining attention over the last years. N2O is a byproduct in the process of converting ammonium to nitrite (nitritation) and denitrification, therefore the treating of highly ammonium loaded wastewater such as SDE has a high potential for emitting N2O. A new concept for treating SDE in the side stream before recycling the stream into the main stream basin was introduced, which leads to a reduction of the energy costs for aeration (Krampe et al., 2016). One possible way to achieve nitritation of SDE in side stream is a membrane aerated biofilm reactor (MABR), which is investigated in this thesis. Therefore, SDE from a municipal wastewater treatment plant was treated over 98 days in a lab scale MABR, focusing on the ammonium removal rate, the nitritation rate as well as the N2O emissions during the process. At the end of the process time an ammonium removal rate of 12.8gNH4-N/m²/d was achieved while the N2O emissions of the plant was 1.7%N2O-N/ NH4-Nconv.
Precise Onboard Aircraft Cabin Localization using UWB and ML
Creators: name: Geyer, Fabien
name: Schupke, Dominic
Publisher: name: arXiv
Year: 2022
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Human-Computer Interaction (cs.HC)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Precise indoor positioning systems (IPSs) are key to perform a set of tasks more efficiently during aircraft production, operation and maintenance. For instance, IPSs can overcome the tedious task of configuring (wireless) sensor nodes in an aircraft cabin. Although various solutions based on technologies of established consumer goods, e.g., Bluetooth or WiFi, have been proposed and tested, the published accuracy results fail to make these technologies relevant for practical use cases. This stems from the challenging environments for positioning, especially in aircraft cabins, which is mainly due to the geometries, many obstacles, and highly reflective materials. To address these issues, we propose to evaluate in this work an Ultra-Wideband (UWB)-based IPS via a measurement campaign performed in a real aircraft cabin. We first illustrate the difficulties that an IPS faces in an aircraft cabin, by studying the signal propagation effects which were measured. We then investigate the ranging and localization accuracies of our IPS. Finally, we also introduce various methods based on machine learning (ML) for correcting the ranging measurements and demonstrate that we are able to localize a node with respect to an aircraft seat with a measured likelihood of 97%.
Break the efficiency limitations of dissipative Kerr soliton using nonlinear couplers
Creators: name: Li, Ming
name: Xue, Xiao-Xiao
name: Zhang, Yan-Lei
name: Xu, Xin-Biao
name: Dong, Chun-Hua
name: Guo, Guang-Can
name: Zou, Chang-Ling
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Dissipative Kerr soliton (DKS) offers a compact solution of coherent comb sources and holds huge potential for applications, but has long been suffering from poor power conversion efficiency when driving by a continuous-wave laser. Here, a general approach to resolving this challenge is provided. By deriving the critical coupling condition of a multimode nonlinear optics system in a generalized theoretical framework, two efficiency limitations of the conventional pump method of DKS are revealed: the effective coupling rate is too small and is also power-dependent. Nonlinear couplers are proposed to sustain the DKS indirectly through nonlinear energy conversion processes, realizing a power-adaptive effective coupling rate to the DKS and matching the total dissipation rate of the system, which promises near-unity power conversion efficiencies. For instance, a conversion efficiency exceeding $90\:\%$ is predicted for aluminum nitride microrings with a nonlinear coupler utilizing second-harmonic generation. The nonlinear coupler approach for high-efficiency generation of DKS is experimentally feasible as its mechanism applies to various nonlinear processes, including Raman and Brillouin scattering, and thus paves the way of micro-solitons towards practical applications.
description: 8 pages, 3 figures
CDF and D0 top quark cross section measurements
Creators: name: Sonnenschein, Lars
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Preliminary results of ttbar cross section measurements and single top exclusion limits of the Tevatron experiments CDF and D0 are presented. The different measurements are based on a dataset between 140 and 200 inverse pb corresponding to a data taking period from spring 2002 to September 2003. The ttbar cross section measurements are consistent with each other and the Standard Model prediction. Data and Monte-Carlo prediction are in good agreement in the search for single top quark. Its observation is anticipated with roughly 2 inverse fb integrated luminosity.
description: 4 pages, 2 figures, submitted to ICHEP 2004 conference proceedings, page 1 instantaneous luminosity number corrected
Additional file 2 of Molecular diagnosis in recessive pediatric neurogenetic disease can help reduce disease recurrence in families
Creators: name: Issa, Mahmoud Y.
name: Zinayida Chechlacz
name: Stanley, Valentina
name: George, Renee D.
name: McEvoy-Venneri, Jennifer
name: Belandres, Denice
name: Elbendary, Hasnaa M.
name: Gaber, Khaled R.
name: Nabil, Ahmed
name: Abdel-Hamid, Mohamed S.
name: Zaki, Maha S.
name: Gleeson, Joseph G.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Computational Biology

description: Additional file 2: Data S1. SimulConsult® Phenome-Genome output pages on each family qualifying for referral for amniocentesis.
Density-controlled growth of vertical InP nanowires on Si(111) substrates
Creators: name: Jaffal, Ali
name: Regreny, Philippe
name: Chauvin, Nicolas
name: Gendry, Michel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A procedure to achieve the density-controlled growth of gold-catalyzed InP nanowires (NWs) on (111) silicon substrates using the vapor-liquid-solid method by molecular beam epitaxy is reported. We develop an effective and mask-free method based on controlling the number and the size of the Au-In catalyst droplets in addition to the conditions for the NW nucleation. We show that the NW density can be tuned with values in the range of 18 μm-2 to < 0.1 μm-2 by the suitable choice of the In/Au catalyst beam equivalent pressure (BEP) ratio, by the phosphorous BEP and the growth temperature. The same degree of control is transferred to InAs/InP quantum dot-nanowires, taking advantage of the ultra-low density to study by micro-photoluminescence the optical properties of a single quantum dot-nanowires emitting in the telecom band monolithically grown on silicon. Optical spectroscopy at cryogenic temperature successfully confirmed the relevance of our method to excite single InAs quantum dots on the as-grown sample, which opens the path for large-scale applications based on single quantum dot-nanowire devices integrated on silicon.
Quantum statistical mechanics near a black hole horizon
Creators: name: Sourtzinou, Eirini
name: Anastopoulos, Charis
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We undertake a first-principles analysis of the thermodynamics of a small body near a black hole horizon. In particular, we study the paradigmatic system of a quantum ideal gas in a small box hovering over the Schwarzschild horizon. We describe the gas in terms of free quantum fields, bosonic and fermionic, massive and massless. We identify thermodynamic properties through the microcanonical distribution. We first analyse the more general case of a box in Rindler spacetime, and then specialize to the black hole case. The physics depends strongly on the distance of the box from the horizon, which we treat as a macroscopic thermodynamic variable. We find that the effective dimension of the system transitions from three-dimensional to two-dimensional as we approach the horizon, that Bekenstein's bound fails when the box is adiabatically lowered towards the black hole, and that the pressure is highly anisotropic. The pressure difference between the upper and lower wall leads to an effective force that must be added to the gravitational acceleration. We also show that the approximation of quantum fields propagating on a fixed background for matter breaks down when the system is brought to microscopic distances from the horizon, in which case backreaction effects must be included.
description: 31 pages, 4 figures; restructured with minor revisions; to appear in PRD
Concurrence internationale dans le secteur viticole : quel avenir au modèle d’appellation d’origine contrôlée?
Creators: name: Giraud-Heraud, Eric
name: Soler, Louis-Georges
name: Tanguy, Herve
name: Giraud-Heraud, Eric
name: Soler, Louis-Georges
name: Tanguy, Herve
Publisher: name: Unknown
Year: 2002
Subjects: Agribusiness
Industrial Organization

description: Le modèle français des appellations d'origine contrôlée (AOC) viticoles a prouvé qu'il pouvait favoriser une offre particulièrement variée et maintenir une population importante de viticulteurs, avec des effets positifs sur l'emploi et l'aménagement du territoire. Les conditions de succès économique de ce modèle sur le long terme sont néanmoins exigeantes. Deux causes majeures profondément liées permettent d'expliquer les limites rencontrées aujourd'hui par ce système, notamment dans le secteur des AOC génériques : - l'organisation des marchés des vins entre vignerons et négociants est souvent déficiente. Les fortes variations des cours qui en résultent rendent difficile la mise en place de contrats incitatifs garantissant aux metteurs en marché des approvisionnements en vins programmables en quantité et en qualité ; - la structure financière des firmes qui sont devenues les partenaires régionaux des vignobles d'AOC pour la mise en marché est peu propice au développement de stratégies de création de marques et de réseaux de distribution propres. Après une présentation détaillée de ce diagnostic, des propositions opérationnelles sont formulées pour une nouvelle organisation économique favorisant la participation des AOC à des stratégies concertées avec le négoce. Une telle évolution devrait améliorer les capacités de la filière viticole européenne à maintenir et à développer sa position au niveau international.
On Practical Nearest Sub-Trajectory Queries under the Fréchet Distance
Creators: name: Gudmundsson, Joachim
name: Pfeifer, John
name: Seybold, Martin P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Geometry (cs.CG)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: We study the problem of sub-trajectory nearest-neighbor queries on polygonal curves under the continuous Fréchet distance. Given an $n$ vertex trajectory $P$ and an $m$ vertex query trajectory $Q$, we seek to report a vertex-aligned sub-trajectory $P'$ of $P$ that is closest to $Q$, i.e. $P'$ must start and end on contiguous vertices of $P$. Since in real data $P$ typically contains a very large number of vertices, we focus on answering queries, without restrictions on $P$ or $Q$, using only precomputed structures of ${\mathcal{O}}(n)$ size.
 We use three baseline algorithms from straightforward extensions of known work, however they have impractical performance on realistic inputs. Therefore, we propose a new Hierarchical Simplification Tree data structure and an adaptive clustering based query algorithm that efficiently explores relevant parts of $P$. The core of our query methods is a novel greedy-backtracking algorithm that solves the Fréchet decision problem using ${\cal O}(n+m)$ space and ${\cal O}(nm)$ time in the worst case.
 Experiments on real and synthetic data show that our heuristic effectively prunes the search space and greatly reduces computations compared to baseline approaches.
description: Added journal reference
Kilohertz electron paramagnetic resonance spectroscopy of single nitrogen centers at zero magnetic field
Creators: name: Kong, Fei
name: Zhao, Pengju
name: Yu, Pei
name: Qin, Zhuoyang
name: Huang, Zhehua
name: Wang, Zhecheng
name: Wang, Mengqi
name: Shi, Fazhan
name: Du, Jiangfeng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Electron paramagnetic resonance spectroscopy (EPR) is among the most important analytical tools in physics, chemistry, and biology. The emergence of nitrogen-vacancy (NV) centers in diamond, serving as an atomic-sized magnetometer, has promoted this technique to single-spin level, even under ambient conditions. Despite the enormous progress in spatial resolution, the current megahertz spectral resolution is still insufficient to resolve key heterogeneous molecular information. A major challenge is the short coherence times of the sample electron spins. Here, we address this challenge by employing a magnetic noise-insensitive transition between states of different symmetry. We demonstrate a 27-fold narrower spectrum of single substitutional nitrogen (P1) centers in diamond with linewidth of several kilohertz, and then some weak couplings can be resolved. Those results show both spatial and spectral advances of NV center-based EPR, and provide a route towards analytical (EPR) spectroscopy at single-molecule level.
description: 22 pages, 10 figures
A Rigorous Attempt to Verify Interstellar Glycine
Creators: name: Snyder, L. E.
name: Lovas, F. J.
name: Hollis, J. M.
name: Friedel, D. N.
name: Jewell, P. R.
name: Remijan, A.
name: Ilyushin, V. V.
name: Alekseev, E. A.
name: Dyubko, S. F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In 2003, Kuan, Charnley, and co-workers reported the detection of interstellar glycine (NH2CH2COOH) based on observations of 27 lines in 19 different spectral bands in one or more of the sources Sgr B2(N-LMH), Orion KL, and W51 e1/e2. They supported their detection report with rotational temperature diagrams for all three sources. In this paper, we present essential criteria which can be used in a straightforward analysis technique to confirm the identity of an interstellar asymmetric rotor such as glycine. We use new laboratory measurements of glycine as a basis for applying this analysis technique, both to our previously unpublished 12 m telescope data and to the previously published SEST data of Nummelin and colleagues. We conclude that key lines necessary for an interstellar glycine identification have not yet been found. We identify some common molecular candidates that should be examined further as more likely carriers of several of the lines reported as glycine. Finally, we illustrate that a rotational temperature diagram used without the support of correct spectroscopic assignments is not a reliable tool for the identification of interstellar molecules.
description: 40 pages, 6 figures, to be published in the Astrophysical Journal (Feb. 1, 2005)
L’activité féminine détermine la consommation de repas hors domicile
Creators: name: Caillavet, France
name: Nichele, Veronique
name: Caillavet, France
name: Nichele, Veronique
Publisher: name: Unknown
Year: 2002
Subjects: Food Consumption/Nutrition/Food Safety

description: Les modes de consommation de repas ont varié non seulement avec l'évolution des revenus des ménages mais aussi avec les transformations du travail féminin. Le recours à la main-d'oeuvre féminine a accompagné le développement des services dans l'économie, induisant un transfert des tâches domestiques vers la sphère marchande. De ce fait, on observe une importance croissante des dépenses de repas hors domicile ainsi qu'un plus fort degré d'élaboration des produits alimentaires achetés pour être consommés à domicile. Dans ce contexte, on s'intéresse aux comportements de consommation de repas des ménages français, et notamment à leurs choix entre repas au foyer et repas à l'extérieur, et entre diverses formes de restauration. Une analyse microéconomique permet d'expliquer ces arbitrages en fonction des variables économiques (prix des repas, niveau de revenu du ménage, déterminants du salaire potentiel de la femme) et des facteurs socio-démographiques (composition de la famille par âge et par genre).
Exchange energies with forces in density-functional theory
Creators: name: Tancogne-Dejean, Nicolas
name: Penz, Markus
name: Laestadius, Andre
name: Csirik, Mihály A.
name: Ruggenthaler, Michael
name: Rubio, Angel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose exchanging the energy functionals in ground-state DFT with physically equivalent exact force expressions as a new promising route towards approximations to the exchange-correlation potential and energy. In analogy to the usual energy-based procedure, we split the force difference between the interacting and auxiliary Kohn-Sham system into a Hartree, an exchange, and a correlation force. The corresponding scalar potential is obtained by solving a Poisson equation, while an additional transverse part of the force yields a vector potential. These vector potentials obey an exact constraint between the exchange and correlation contribution and can further be related to the atomic-shell structure. Numerically, the force-based local-exchange potential and the corresponding exchange energy compare well with the numerically more involved optimized effective-potential method. Overall, the force-based method has several benefits when compared to the usual energy-based approach and opens a route towards numerically inexpensive non-local and (in the time-dependent case) non-adiabatic approximations.
Segmentation de l’offre et relations entre producteurs et distributeurs. Quelles stratégies de la grande distribution après la crise de la « vache folle » ?
Creators: name: De Fontguyon, Guy
name: Giraud-Heraud, Eric
name: Rouached, Lamia
name: Soler, Louis-Georges
name: De Fontguyon, Guy
name: Giraud-Heraud, Eric
name: Rouached, Lamia
name: Soler, Louis-Georges
Publisher: name: Unknown
Year: 2002
Subjects: Agribusiness
Food Consumption/Nutrition/Food Safety

description: Le développement des Marques de Distributeurs (MDD) dans le secteur des produits agricoles frais est un phénomène récent, dont l'émergence est étroitement liée aux crises alimentaires et sanitaires des dernières années. Ainsi, en même temps que les pouvoirs publics créaient de nouveaux dispositifs de contrôle sanitaire, resserraient les normes réglementaires de production ou faisaient évoluer la réglementation sur les signes officiels de qualité (SOQ), de nouvelles stratégies de segmentation de l'offre étaient adoptées par certains distributeurs, sur la base d'une implication plus grande au niveau de l'amont agricole. Initiées dans le secteur de la viande, directement touché par la crise de la "vache folle", ces démarches se sont développées ensuite dans d'autres secteurs comme ceux des fruits et légumes, du poisson, des fromages et du vin. En quoi ces démarches modifient-elles l'offre alimentaire proposée aux consommateurs ? En quoi modifient-elles les relations entre les producteurs et les distributeurs et sous quelles conditions les uns et les autres ont-ils intérêt à s'y engager ? Comment ces démarches viennent-elles interagir avec celles des pouvoirs publics et, notamment, le relèvement des standards de qualité minimum ? Ce sont ces questions qui sont examinées dans cette étude à partir de l'exemple de la viande bovine.
Implicit Motion-Compensated Network for Unsupervised Video Object Segmentation
Creators: name: Xi, Lin
name: Chen, Weihai
name: Wu, Xingming
name: Liu, Zhong
name: Li, Zhengguo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Unsupervised video object segmentation (UVOS) aims at automatically separating the primary foreground object(s) from the background in a video sequence. Existing UVOS methods either lack robustness when there are visually similar surroundings (appearance-based) or suffer from deterioration in the quality of their predictions because of dynamic background and inaccurate flow (flow-based). To overcome the limitations, we propose an implicit motion-compensated network (IMCNet) combining complementary cues ($\textit{i.e.}$, appearance and motion) with aligned motion information from the adjacent frames to the current frame at the feature level without estimating optical flows. The proposed IMCNet consists of an affinity computing module (ACM), an attention propagation module (APM), and a motion compensation module (MCM). The light-weight ACM extracts commonality between neighboring input frames based on appearance features. The APM then transmits global correlation in a top-down manner. Through coarse-to-fine iterative inspiring, the APM will refine object regions from multiple resolutions so as to efficiently avoid losing details. Finally, the MCM aligns motion information from temporally adjacent frames to the current frame which achieves implicit motion compensation at the feature level. We perform extensive experiments on $\textit{DAVIS}_{\textit{16}}$ and $\textit{YouTube-Objects}$. Our network achieves favorable performance while running at a faster speed compared to the state-of-the-art methods.
description: Accepted by IEEE Transactions on Circuits and Systems for Video Technology (TCSVT)