cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Models of fractional viscous stresses for incompressible materials
Creators: name: Berjamin, Harold
name: Destrade, Michel
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 74S40 (Primary) 74D10, 76A05 (Secondary)

description: We present and review several models of fractional viscous stresses from the literature, which generalise classical viscosity theories to fractional orders by replacing total strain derivatives in time with fractional time derivatives. We also briefly introduce Prony-type approximations of these theories. Here we investigate the issues of material frame-indifference and thermodynamic consistency for these models and find that on these bases, some are physically unacceptable. Next we study elementary shearing and tensile motions, observing that some models are more convenient to use than others for the analysis of creep and relaxation. Finally, we compute the incremental stresses due to small-amplitude wave propagation in a deformed material, with a view to establish acousto-elastic formulas for prospective experimental calibrations.
An Algorithmic Approach for Assessment of Mediastinal Lesions Using Conventional Transbronchial Needle Aspiration and Endoscopic Ultrasonography in a Single Procedure
Creators: name: Burkett, Andrew
name: Sekhon, Harmanjatinder S.
name: Burkett, Craig
name: Hakim, Shaheed W.
name: Amjadi, Kayvan
Publisher: name: My University
Year: 2017
Subjects: Adenocarcinoma
Adult
Aged
Aged, 80 and over
Biopsy, Fine-Needle
Breast Neoplasms
Bronchoscopy
Carcinoma, Squamous Cell
Endoscopic Ultrasound-Guided Fine Needle Aspiration
Female
Humans
Lung Neoplasms
Lymph Nodes
Lymphatic Metastasis
Male
Mediastinum
Middle Aged
Small Cell Lung Carcinoma
Algorithms

description: In the era of endobronchial/esophageal ultrasound (EBUS-TBNA/EUS-FNA), many centers forgo conventional transbronchial needle aspiration (C-TBNA) in favour of EBUS-TBNA/EUS-FNA despite no conclusive evidence showing better yields with EBUS-TBNA/EUS-FNA.
Multi-charmed and singled charmed hadrons from coalescence: yields and ratios in different collision systems at LHC
Creators: name: Minissale, Vincenzo
name: Plumari, Salvatore
name: Sun, Yifeng
name: Greco, Vincenzo
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the production of charmed and multi-charmed hadrons in ultra-relativistic Heavy Ion Collisions coupling the transport approach for charm dynamics in the medium to an hybrid hadronization model of coalescence plus fragmentation. In this paper, we mainly discuss the particle yields for single charmed and multi-charmed baryons focusing mainly on the production of $Ξ_{cc}$ and $Ω_{ccc}$. We provide first predictions for PbPb collision in 0-10% centrality class and then we explore the system size dependence through KrKr, to ArAr and OO collisions, planned within the ALICE3 experiment. In these cases, a monotonic behavior for the yields emerges which can be tested in future experimental data. We found about three order of magnitude increase in the production of $Ω_{ccc}$ in PbPb collisions compared with the yield in small collision systems like OO collisions. Furthermore, we investigate the effects on the $Ω_{ccc}$ particle production and spectra coming from the modification of the charm quark distribution due to the different size of the collision systems comparing also to the case of thermalized charm distributions. These results suggest that observation on the $Ω_{ccc}$ spectra and their evolution across system size can give information about the partial thermalization of the charm quark distribution as well as to its wave function width.
description: 12 pages, 8 figures; minor changes and adding of a figure
Broadband radio spectro-polarimetric observations of high Faraday rotation measure AGN
Creators: name: Pasetto, Alice
name: Carrasco-González, Carlos
name: O'Sullivan, Shane
name: Basu, Aritra
name: Bruni, Gabriele
name: Kraus, Alex
name: Curiel, Salvador
name: Mack, Karl-Heinz
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present broadband polarimetric observations of a sample of high Faraday rotation measure (RM) AGN using the VLA telescope from 1 to 2 GHz, and 4 to 12 GHz. The sample (14 sources) consists of compact sources (linear resolution smaller than ~ 5 kpc) that are unpolarized at 1.4 GHz in the NVSS. Total intensity data have been modelled using combination of synchrotron components, revealing complex structure in their radio spectra. Depolarization modelling, through the so called qu-fitting, have been performed on the polarized data using an equation that attempts to simplify the process of fitting many different depolarization models that we can divide into two major categories: External Depolarization and Internal Depolarization models. Understanding which of the two mechanisms are the most representative, would help the qualitative understanding of the AGN jet environment, whether it is embedded in a dense external magnetoionic medium or if it is the jet-wind that causes the high RM and strong depolarization. This could help to probe the jet magnetic field geometry (e.g. helical or otherwise). This new high-sensitivity data, shows a complicated behaviour in the total intensity and polarization radio spectrum of individual sources. We observed the presence of several synchrotron components and Faraday components in their total intensity and polarized spectra. For the majority of our targets, (12 sources) the depolarization seems to be caused by a turbulent magnetic field. Thus, our main selection criteria (lack of polarization at 1.4 GHz in the NVSS), results in a sample of sources with very large RMs and depolarization due to turbulent magnetic fields local to the source. We show how the new qu-fitting technique can be used to probe the magnetised radio source environment and to spectrally resolve the polarized components of unresolved radio sources.
description: Accepted by A&A, Previous ArXiv version the Fig.3 on pag. 8 had problem during printing stage. I uploaded this new version with a different format of those plots
Action Recognition via Local Descriptors and Holistic Features
Creators: name: Xinghua  Sun
name: Mingyu Chen
name: Hauptmann, Alexander
Publisher: name: Carnegie Mellon University
Year: 1977
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: In this paper we propose a unified action recognition framework fusing local descriptors and holistic features. The motivation is that the local descriptors and holistic features emphasize different aspects of actions and are suitable for the different types of action databases. The proposed unified framework is based on frame differencing, bag-of-words and feature fusion. We extract two kinds of local descriptors, i.e. 2D and 3D SIFT feature descriptors, both based on 2D SIFT interest points. We apply Zernike moments to extract two kinds of holistic features, one is based on single frames and the other is based on motion energy image. We perform action recognition experiments on the KTH and Weizmann databases, using Support Vector Machines. We apply the leave-one-out and pseudo leave-N-out setups, and compare our proposed approach with state-of-the-art results. Experiments show that our proposed approach is effective. Compared with other approaches our approach is more robust, more versatile, easier to compute and simpler to understand.
Influencing emotional-action control using tACS - social anxiety follow-up
Creators: name: Bramson, Bob
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: Life Sciences
subject: Social and Behavioral Sciences

description: Title Improving emotional-action control in socially anxious individuals using dual-site phase-amplitude coupled tACS Content The following section reflects the content of a presentation given at the Project Proposal meeting at the Donders Center for Cognitive NeuroImaging in Nijmegen on 24-1-2019. The powerpoint slides from that meeting are added as supplement.
Additional file 3 of Osa-miR162a fine-tunes rice resistance to Magnaporthe oryzae and Yield
Creators: name: Li, Xu-Pu
name: Ma, Xiao-Chun
name: Wang, He
name: Zhu, Yong
name: Liu, Xin-Xian
name: Li, Ting-Ting
name: Zheng, Ya-Ping
name: Zhao, Ji-Qun
name: Zhang, Ji-Wei
name: Huang, Yan-Yan
name: Pu, Mei
name: Feng, Hui
name: Fan, Jing
name: Li, Yan
name: Wang, Wen-Ming
Publisher: name: figshare
Year: 2020
Subjects: subject: Plant Biology
subject: FOS: Biological sciences

description: Additional file 3: Figure S3. Osa-miR162a does not repress the expression of DUF292. (a) The alignment of Osa-miR162a and Osa-miR162b with MIM162. (b) The sequence alignment of Osa-miR162a with target sites of candidate genes. Mismatched nucleotides were highlighted in red colors. (c and d) Quantitative reverse transcription polymerase chain reaction (RT-qPCR) data indicate amounts of Osa-miR162a levels in OX162 (c) and MIM162 lines (d) in comparison with Nipponbare (NPB). For qPCR, Data are shown as mean ± SD (n = 3). Different letters indicate a significant difference at 5% level via Tukey-Kramer test. All the experiments were repeated two times with similar results.
Configurational entropy and the $N^*(1440)$ Roper resonance in QCD
Creators: name: Karapetyan, G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The electroexcitation of the ${\cal N}^*(1440)$ Roper resonance, which defines the first radially excited state of the nucleon, is examined within the soft-wall AdS/QCD model. Such excited Fock states are characterized by the leading three-quark component, which determines the main properties of Roper resonance. The differential configurational entropy (DCE) was used in the nuclear interaction with a gauge vector field for ${\cal N}^*(1440)$ transition. Comparing the main results with the recent data of the CLAS Collaboration at JLab shows a good agreement on the accuracy of the computed data.
description: 19 pages, 4 figures
Design and performance of an ultra-high vacuum spin-polarized scanning tunneling microscope operating at 30 mK and in a vector magnetic field
Creators: name: von Allwörden, Henning
name: Eich, Andreas
name: Knol, Elze J.
name: Hermenau, Jan
name: Sonntag, Andreas
name: Gerritsen, Jan W.
name: Wegner, Daniel
name: Khajetoorians, Alexander A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We describe the design and performance of a scanning tunneling microscope (STM) which operates at a base temperature of 30 mK in a vector magnetic field. The cryogenics is based on an ultra-high vacuum (UHV) top-loading wet dilution refrigerator that contains a vector magnet allowing for fields up to 9 T perpendicular and 4 T parallel to the sample. The STM is placed in a multi-chamber UHV system, which allows in-situ preparation and exchange of samples and tips. The entire system rests on a 150-ton concrete block suspended by pneumatic isolators, which is housed in an acoustically isolated and electromagnetically shielded laboratory optimized for extremely low noise scanning probe measurements. We demonstrate the overall performance by illustrating atomic resolution and quasiparticle interference imaging and detail the vibrational noise of both the laboratory and microscope. We also determine the electron temperature via measurement of the superconducting gap of Re(0001) and illustrate magnetic field-dependent measurements of the spin excitations of individual Fe atoms on Pt(111). Finally, we demonstrate spin resolution by imaging the magnetic structure of the Fe double layer on W(110).
A complete map of the ion chemistry of the naphthalene radical cation? DFT and RRKM modeling of a complex potential energy surface
Creators: name: Solano, Eduardo A.
name: Mayer, Paul M.
Publisher: name: My University
Year: 2015

description: The fragmentation mechanisms of the naphthalene molecular ion to [M-C4H2](+•), [M-C2H2](+•), [M-H2](+•), and [M-H(•)](+) were obtained at the UB3LYP/6-311+G(3df,2p)//UB3LYP/6-31G(d) level of theory and were subsequently used to calculate the microcanonical rate constants, k(E)'s, for all the steps by the Rice-Ramsperger-Kassel-Marcus formalism. The pre-equilibrium and steady state approximations were applied on different regions of the potential energy profiles to obtain the fragmentation k(E)'s and calculate the relative abundances of the ions as a function of energy. These results reproduce acceptably well the imaging photoelectron-photoion coincidence spectra of naphthalene, in the photon-energy range 14.0-18.8 eV that was previously reported by our group. Prior to dissociation, the molecular ion rapidly equilibrates with a set of isomers that includes the Z- and E-phenylvinylacetylene (PVA) radical cations. The naphthalene ion is the predominant isomer below 10 eV internal energy, with the other isomers remaining at steady state concentrations. Later on, new steady-state intermediates are formed, such as the azulene and 1-phenyl-butatriene radical cations. The naphthalene ion does not eject an H atom directly but eliminates an H2 molecule in a two-step fragmentation. H(•) loss occurs instead from the 1-phenyl-butatriene ion. The PVA ions initiate the ejection of diacetylene (C4H2) to yield the benzene radical cation. Acetylene elimination yields the pentalene cation at low energies (where it can account for 45.9%-100.0% of the rate constant of this channel), in a three-step mechanism starting from the azulene ion. However, above 7.6 eV, the major [M-C2H2](+•) structure is the phenylacetylene cation.
Consultoría Aromatheka S.A.S.
Creators: name: Isaza Sánchez, Diana Carolina
name: Toro Sánchez, Liliana Milena
Publisher: name: Universidad Externado de Colombia
Year: 2023
Subjects: subject: Mercadeo
subject: Crecimiento económico
subject: Artículos de tocador
subject: Plan de marketing
subject: Plan comercial
subject: Cosmética
subject: Marketing
subject: FOS: Economics and business
subject: Belleza
subject: Aromatheka

description: El presente trabajo pretende presentar a la empresa Aromatheka el planteamiento estratégico desde las áreas de mercadeo y comercial que la empresa debe implementar en el corto y mediano plazo para continuar su crecimiento en la categoría. Partiendo del entendimiento profundo del entorno en el que se desempeña la empresa que incluye el análisis externo, interno y un diagnóstico del perfil empresarial, que da las guías de áreas de intervención así como las oportunidades de crecimiento. Posterior se presenta el plan de marketing, en el cual se plantean estrategias enfocadas en posicionamiento, marca, comunicación, portafolio, canales entre otros, para asegurar los retos estratégicos de la empresa Finalmente, la revisión y propuesta comercial, que se enfoca en acciones tácticas para potencializar los canales comerciales y fuentes de ingresos de la empresa Aromatheka.
description: This paper aims to present to the company Aromatheka the strategic approach from the marketing and commercial areas that the company should implement in the short and medium term to continue its growth in the category. Starting from a deep understanding of the environment in which the company operates, including the external and internal analysis and a diagnosis of the business profile, which gives the guidelines for areas of intervention as well as growth opportunities. Subsequently, the marketing plan is presented, in which strategies focused on positioning, branding, communication, portfolio, channels, among others, are proposed to ensure the strategic challenges of the company. Finally, the review and commercial proposal, which focuses on tactical actions to enhance the commercial channels and sources of income of the company Aromatheka.
On a Voter Model with Context-Dependent Opinion Adoption
Creators: name: Becchetti, Luca
name: Bonifaci, Vincenzo
name: Cruciani, Emilio
name: Pasquale, Francesco
Publisher: name: arXiv
Year: 2023
Subjects: subject: Multiagent Systems (cs.MA)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Opinion diffusion is a crucial phenomenon in social networks, often underlying the way in which a collective of agents develops a consensus on relevant decisions. The voter model is a well-known theoretical model to study opinion spreading in social networks and structured populations. Its simplest version assumes that an updating agent will adopt the opinion of a neighboring agent chosen at random. The model allows us to study, for example, the probability that a certain opinion will fixate into a consensus opinion, as well as the expected time it takes for a consensus opinion to emerge.
 Standard voter models are oblivious to the opinions held by the agents involved in the opinion adoption process. We propose and study a context-dependent opinion spreading process on an arbitrary social graph, in which the probability that an agent abandons opinion $a$ in favor of opinion $b$ depends on both $a$ and $b$. We discuss the relations of the model with existing voter models and then derive theoretical results for both the fixation probability and the expected consensus time for two opinions, for both the synchronous and the asynchronous update models.
Acquiring domain-specific planners by example
Creators: name: Winner, Elly
name: Veloso, Manuela M.
Publisher: name: Carnegie Mellon University
Year: 2008
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Abstract: "Intelligent problem solving requires the ability to select actions autonomously from a specific state to reach objectives. Planning algorithms provide approaches to look ahead and select a complete sequence of actions. Given a domain description consisting of preconditions and effects of the actions the planner can take, an initial state, and a goal, a planning program returns a sequence of actions to transform the initial state into a state in which the goal is satisfied. Classical planning research has addressed this problem in a domain-independent manner -- the same algorithm generates a complete plan for any domain specification. This feature comes at a cost which domain-independent planners incur either in high search efforts or in tedious hand-coded domain knowledge. Previous approaches to efficient general-purpose planning have focused on reducing the search involved in an existing general-purpose planning algorithm. An interesting alternative is to use example plans in a particular domain to demonstrate how to solve problems in that domain and to use that information to solve new problems independently of a domain-independent planner. Others have used example plans for case-based planning, but the retrieval and adaptation mechanisms were still domain-independent and efficiency issues were still a concern. In my thesis, I propose to introduce algorithms to extract complex, repeating processes, in the form of domain-specific planning programs, from example plans. I will investigate the application of these learned programs to modelling agent preferences and choices. I will also investigate how the programs can be used, extended, and repaired dynamically as an agent encounters new problems and acquires new experience. Finally, I will compare the template-based planning paradigm to existing general-purpose and domain-specific planning programs with a full evaluation on new and existing planning domains. I expect the core contribution of this thesis to be a new planning paradigm in which domain-specific planners are learned by example."
Colonoscopy Coverage Revisited: Identifying Scanning Gaps in Real-Time
Creators: name: Leifman, G.
name: Kligvasser, I.
name: Goldenberg, R.
name: Elad, M.
name: Rivlin, E.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Colonoscopy is the most widely used medical technique for preventing Colorectal Cancer, by detecting and removing polyps before they become malignant. Recent studies show that around one quarter of the existing polyps are routinely missed. While some of these do appear in the endoscopist's field of view, others are missed due to a partial coverage of the colon. The task of detecting and marking unseen regions of the colon has been addressed in recent work, where the common approach is based on dense 3D reconstruction, which proves to be challenging due to lack of 3D ground truth and periods with poor visual content. In this paper we propose a novel and complementary method to detect deficient local coverage in real-time for video segments where a reliable 3D reconstruction is impossible. Our method aims to identify skips along the colon caused by a drifted position of the endoscope during poor visibility time intervals. The proposed solution consists of two phases. During the first, time segments with good visibility of the colon and gaps between them are identified. During the second phase, a trained model operates on each gap, answering the question: Do you observe the same scene before and after the gap? If the answer is negative, the endoscopist is alerted and can be directed to the appropriate area in real-time. The second phase model is trained using a contrastive loss based on auto-generated examples. Our method evaluation on a dataset of 250 procedures annotated by trained physicians provides sensitivity of 0.75 with specificity of 0.9.
description: 10 pages, 5 figures
Justicia indígena en un mundo pluridiverso y en conflicto
Creators: name: Gutiérrez Quevedo, Marcela
Publisher: name: Universidad Externado de Colombia. Centro de Investigación en Política Criminal.
Year: 2022
Subjects: subject: Grupos étnicos
subject: Pueblos (Indígenas)
subject: Multiculturalismo
subject: Jurisdicción indígena
subject: Constitucionalismo
subject: Diversidad cultural
subject: Ancestralidades
subject: Interculturalidades dialógicas y prisión

description: La jurisdicción indígena es reconocida constitucionalmente. Sin embargo, hay una dificultad social e institucional para aceptar y respetar la alteridad (de las culturas y de los sistemas de justicias) de los pueblos étnicos. En este artículo se analiza el tema de las justicias indígenas en Colombia a partir de dos preguntas: ¿por qué la jurisdicción indígena, reconocida por la Constitución de Colombia, es negada en ciertos casos penales? y ¿Cuál es el trasfondo de las diferencias entre los pueblos indígenas y la sociedad predominante? De esta forma, se busca identificar procesos y realidades que permitan entender las causas por las que el sistema jurídico colombiano no logra hacer efectiva, a cabalidad, la pluralidad jurídica y la multiculturalidad, siendo estas promovidas y defendidas por la Constitución Política de Colombia de 1991. Todo en un contexto que resulta cada vez más necesaria una aproximación intercultural para resolver los conflictos.
description: Indigenous jurisdiction is constitutionally recogniuzed. However, there is a social and institutional difficulty in accepting and respecting the alterity (of cultures and justice systems) of ethnic peoples. This article analyzesthe issue of indigenous justice in Colombia based on two questions: why is the indigenous jurisdiction recognized by the Colombian Constititution denied in certain criminal cases? And what is the background of the differences betwen indigenous peoples and the predominant society ? In is way, it seeks to identify processes and realities that allow understanding the causes why the Colombian legal system fails to fully implement legal plurality and multicuturalism, these being promoted and defended by the Political Constitution of Colombia of 1991. Everything, in a context in which an intercultural approach is increasingly necessary to resolve conflicts.
Semi-supervised Quality Evaluation of Colonoscopy Procedures
Creators: name: Kligvasser, Idan
name: Leifman, George
name: Goldenberg, Roman
name: Rivlin, Ehud
name: Elad, Michael
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Colonoscopy is the standard of care technique for detecting and removing polyps for the prevention of colorectal cancer. Nevertheless, gastroenterologists (GI) routinely miss approximately 25% of polyps during colonoscopies. These misses are highly operator dependent, influenced by the physician skills, experience, vigilance, and fatigue. Standard quality metrics, such as Withdrawal Time or Cecal Intubation Rate, have been shown to be well correlated with Adenoma Detection Rate (ADR). However, those metrics are limited in their ability to assess the quality of a specific procedure, and they do not address quality aspects related to the style or technique of the examination. In this work we design novel online and offline quality metrics, based on visual appearance quality criteria learned by an ML model in an unsupervised way. Furthermore, we evaluate the likelihood of detecting an existing polyp as a function of quality and use it to demonstrate high correlation of the proposed metric to polyp detection sensitivity. The proposed online quality metric can be used to provide real time quality feedback to the performing GI. By integrating the local metric over the withdrawal phase, we build a global, offline quality metric, which is shown to be highly correlated to the standard Polyp Per Colonoscopy (PPC) quality metric.
EEG and EMG dataset for the detection of errors introduced by an active orthosis device
Creators: name: Kueper, Niklas
name: Chari, Kartik
name: Bütefür, Judith
name: Habenicht, Julia
name: Kim, Su Kyoung
name: Rossol, Tobias
name: Tabie, Marc
name: Kirchner, Frank
name: Kirchner, Elsa Andrea
Publisher: name: arXiv
Year: 2023
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Artificial Intelligence (cs.AI)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: This paper presents a dataset containing recordings of the electroencephalogram (EEG) and the electromyogram (EMG) from eight subjects who were assisted in moving their right arm by an active orthosis device. The supported movements were elbow joint movements, i.e., flexion and extension of the right arm. While the orthosis was actively moving the subject's arm, some errors were deliberately introduced for a short duration of time. During this time, the orthosis moved in the opposite direction. In this paper, we explain the experimental setup and present some behavioral analyses across all subjects. Additionally, we present an average event-related potential analysis for one subject to offer insights into the data quality and the EEG activity caused by the error introduction. The dataset described herein is openly accessible. The aim of this study was to provide a dataset to the research community, particularly for the development of new methods in the asynchronous detection of erroneous events from the EEG. We are especially interested in the tactile and haptic-mediated recognition of errors, which has not yet been sufficiently investigated in the literature. We hope that the detailed description of the orthosis and the experiment will enable its reproduction and facilitate a systematic investigation of the influencing factors in the detection of erroneous behavior of assistive systems by a large community.
description: Revised references to our datasets, general corrections to typos, and latex template format changes, Overall Content unchanged
Exploring The Effects Of Disk Thickness On The Black Hole Reflection Spectrum
Creators: name: Taylor, Corbin
name: Reynolds, Christopher S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The relativistically-broadened reflection spectrum, observed in both AGN and X-ray binaries, has proven to be a powerful probe of the properties of black holes and the environments in which they reside. Being emitted from the inner-most regions of the accretion disk, this X-ray spectral component carries with it information not only about the plasma that resides in these extreme conditions, but also the black hole spin, a marker of the formation and accretion history of these objects. The models currently used to interpret the reflection spectrum are often simplistic, however, approximating the disk as an infinitely thin, optically thick plane of material orbiting in circular Keplerian orbits around the central object. Using a new relativistic ray tracing suite (Fenrir) that allows for more complex disk approximations, we examine the effects that disk thickness may have on the reflection spectrum. Assuming a lamp post corona, we find that finite disk thickness can have a variety of effects on the reflection spectrum, including a truncation of the blue wing (from self-shadowing of the accretion disk) and an enhancement of the red wing (from the irradiation of the central 'eye wall' of the inner disk). We make a first estimate on the systematic errors on black hole spin and height that may result from neglecting these effects.
description: 20 pages, 10 figures, Accepted for publication in ApJ
Dissection of a Bug Dataset: Anatomy of 395 Patches from Defects4J
Creators: name: Sobreira, Victor
name: Durieux, Thomas
name: Madeiral, Fernanda
name: Monperrus, Martin
name: Maia, Marcelo A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Well-designed and publicly available datasets of bugs are an invaluable asset to advance research fields such as fault localization and program repair as they allow directly and fairly comparison between competing techniques and also the replication of experiments. These datasets need to be deeply understood by researchers: the answer for questions like "which bugs can my technique handle?" and "for which bugs is my technique effective?" depends on the comprehension of properties related to bugs and their patches. However, such properties are usually not included in the datasets, and there is still no widely adopted methodology for characterizing bugs and patches. In this work, we deeply study 395 patches of the Defects4J dataset. Quantitative properties (patch size and spreading) were automatically extracted, whereas qualitative ones (repair actions and patterns) were manually extracted using a thematic analysis-based approach. We found that 1) the median size of Defects4J patches is four lines, and almost 30% of the patches contain only addition of lines; 2) 92% of the patches change only one file, and 38% has no spreading at all; 3) the top-3 most applied repair actions are addition of method calls, conditionals, and assignments, occurring in 77% of the patches; and 4) nine repair patterns were found for 95% of the patches, where the most prevalent, appearing in 43% of the patches, is on conditional blocks. These results are useful for researchers to perform advanced analysis on their techniques' results based on Defects4J. Moreover, our set of properties can be used to characterize and compare different bug datasets.
description: Accepted for SANER'18 (25th edition of IEEE International Conference on Software Analysis, Evolution and Reengineering), Campobasso, Italy
Trabajo final plan internacional de marketing para la empresa Blissand Learning en Ecuador
Creators: name: Méndez Rojas, Diana Celeny
name: Riaño Diaz, María Luisa
name: Ballén Cárdenas, Andrés
Publisher: name: Universidad Externado de Colombia
Year: 2023
Subjects: subject: Precios
subject: Ventas
subject: Mercadeo
subject: Internacionalización
subject: Escalada de precios
subject: Distancia institucional
subject: Ventaja competitiva
subject: Segmentación

description: Blissand Learning es una compañía distribuidora y comercializadora de textos escolares en el mercado colombiano, tiene una trayectoria de 8 años en los colegios triple A de la ciudad de Bogotá D.C. La compañía cuenta con un portafolio de productos editoriales de talla mundial, las cuales son: Pearson, National Geographic, Oxford, Cambridge, Andarele, Cosmos, Maya y Richmond, así mismo, tiene una de las redes de distribución amplias y adecuadas para el sector. Durante los últimos años, Blissand Learning se fortaleció trabajando con su ventaja competitiva, la cual se basa en el Modelo de Ventas. Del 2019 al 2021 la compañía subió un 21% de utilidades anual implementando alianzas y redes de distribución con mayor cobertura y rapidez, pero su enfoque principal ha sido su estrategia de ventas. Su objetivo principal es establecer una red de aliados en Ecuador y Perú con el fin de apoyar el modelo de ventas para aumentar la participación del mercado en un 35% dentro de los próximos 5 años.
description: Blissand Learning is a school textbook distributor and marketer in the Colombian market, with 8 years of experience in triple A schools in the city of Bogotá D.C. The company has a portfolio of world-class publishing products, which are: Pearson, National Geographic, Oxford, Cambridge, Andarele, Cosmos, Maya and Richmond, likewise, it has one of the wide and adequate distribution networks for the sector. During the last few years, Blissand Learning has strengthened by working with its competitive advantage, which is based on the Sales Model. From 2019 to 2021, the company increased its annual profits by 21% by implementing alliances and distribution networks with greater coverage and speed, but its main focus has been its sales strategy. Its main objective is to establish a network of allies in Ecuador and Peru in order to support the sales model to increase market share by 35% within the next 5 years.
Conformal Invariance of (0,2) Sigma Models on Calabi-Yau Manifolds
Creators: name: Jardine, Ian T.
name: Quigley, Callum
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Long ago, Nemeschansky and Sen demonstrated that the Ricci-flat metric on a Calabi-Yau manifold could be corrected, order by order in perturbation theory, to produce a conformally invariant (2,2) nonlinear sigma model. Here we extend this result to (0,2) sigma models for stable holomorphic vector bundles over Calabi-Yaus.
description: 15 pages; references added
ACM SIGMM the First Workshop on Web-Scale Multimedia Corpus (WSMC09)
Creators: name: Benoit  Huet
name: Jinhui  Tang
name: Hauptmann, Alexander
Publisher: name: Carnegie Mellon University
Year: 1987
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: The purpose of this workshop is to bring together researchers interested in the construction and analysis of Web Scale multimedia datasets and resources. The Workshop will provide a forum to consolidate key factors related to research on very large scale multimedia dataset such as the construction of dataset, creation of ground truth, sharing and extension of such resources in terms of ground truth, features, algorithms and tools etc. The Workshop will discuss and formulate action plan towards these goals.
Derivation of the quantum-optical master equation based on coarse-graining of time
Creators: name: Fischer, Kevin
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: This is a derivation of the quantum-optical master equation using coarse-graining of time, which brings new insights into a decades old technique. My derivation is quite similar to derivations using quantum stochastic methods or Kraus operators, though I go through the derivation without explicitly invoking any of these concepts, so it may be easier to follow as an introduction. I also address the major pitfall of nearly all microscopic derivations of the master equation, namely that they assume the state of the system and bath factorize for all times. I show why this assumption actually holds for spontaneous emission, and coincidentally turns out to be correct.
Diagnóstico de la implementación de la inteligencia artificial de las cosas (AIoT) con respecto a la planeación, producción y evaluación de eventos MICE en Bogotá durante el periodo 2019-2021
Creators: name: Cárdenas Ortiz, Paula Sofia
Publisher: name: Universidad Externado de Colombia
Year: 2022
Subjects: subject: Competitividad
subject: Administración hotelera
subject: Promoción de turismo
subject: Turismo MICE
subject: Bogotá
subject: AIoT
subject: COVID-19
subject: Innovación

description: Este proyecto de investigación contiene una revisión de los eventos corporativos conocidos como MICE (por sus siglas en inglés: reuniones, viajes de incentivos, conferencias y exhibiciones) realizados en Bogotá desde el 2019 hasta el 2021, bajo una perspectiva de implementación de elementos propios de la Inteligencia Artificial de las Cosas, y una mirada a la posición competitiva actual de la ciudad. Se realizó un estudio en el cambio de comportamiento de los eventos debido a la pandemia COVID-19, y las tendencias futuras que esta situación genera. Por otro lado, se hizo un acercamiento a las relaciones entre estas tecnologías 4.0 y su contribución a la solución de problemas comunes de los actores que conforman el sector MICE. De igual manera, se comparó a Bogotá como destino turístico competitivo a nivel nacional, regional y de competencia directa, tratando su posible mejora gracias a la implementación de nuevas tecnologías. Esta investigación pretende ser una base académica para futuros estudios y trabajos de campo que relacionen directamente a los actores de ambas industrias y propongan un plan de acción que mejore el posicionamiento de Bogotá como un Destino Turístico Inteligente de negocios.
description: This research project contains a study of corporate events, also known as MICE (Meetings, Incentive Travel, Conferences, and Exhibitions) held in Bogota from 2019 to 2021, under a perspective of implementing elements of Artificial Intelligence of Things and a look at the current competitive position of the city. A study was conducted about the event's behavior change due to the COVID-19 pandemic and the future trends that this situation generates. On the other hand, an approach was made about the relationships between these 4.0 technologies and their contribution as a solution for common problems of the MICE sector. Similarly, Bogota was compared as a competitive tourist destination at national, regional, and direct competition levels, addressing its possible improvement through the implementation of new technologies. This research is intended to be an academic basis for future studies and fieldwork that directly relate the actors of both industries and propose an action plan to improve the positioning of Bogota as an Intelligent Tourism Destination for business.
Global Finite-Energy Solutions of the Compressible Euler-Poisson Equations for General Pressure Laws with Spherical Symmetry
Creators: name: Chen, Gui-Qiang G.
name: Huang, Feimin
name: Li, Tianhong
name: Wang, Weiqiang
name: Wang, Yong
Publisher: name: arXiv
Year: 2023
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35Q85, 85A30, 35L65, 35D30, 35Q31, 76N10

description: We are concerned with global finite-energy solutions of the three-dimensional compressible Euler-Poisson equations with gravitational potential and general pressure law, especially including the constitutive equation of white dwarf stars. We construct global finite-energy solutions of the Cauchy problem for the Euler-Poisson equations with large initial data of spherical symmetry as the inviscid limit of the solutions of the corresponding Cauchy problem for the Navier-Stokes-Poisson equations. The strong convergence of the vanishing viscosity solutions is achieved through entropy analysis, uniform estimates in $L^p$, and a more general compensated compactness framework via several new ingredients. A key estimate is first established for the integrability of the density over unbounded domains independent of the viscosity coefficient. Then a special entropy pair is carefully designed by solving a Goursat problem for the entropy equation such that a higher integrability of the velocity is established, which is a crucial step. Moreover, the weak entropy kernel for the general pressure law and its fractional derivatives of the required order near vacuum ($ρ=0$) and far-field ($ρ=\infty$) are carefully analyzed. Owing to the generality of the pressure law, only the $W^{-1,p}_{\rm loc}$-compactness of weak entropy dissipation measures with $p\in [1,2)$ can be obtained; this is rescued by the equi-integrability of weak entropy pairs which can be established by the estimates obtained above so that the div-curl lemma still applies. Finally, based on the above analysis of weak entropy pairs, the $L^p$ compensated compactness framework for the compressible Euler equations with general pressure law is established. This new compensated compactness framework and the techniques developed in this paper should be useful for solving further nonlinear problems with similar features.
description: 98 pages, 1 figure; To appear in "Communications in Mathematical Physics", 2024
Ciclos contables y correlacionales
Creators: name: Avendaño Giraldo, Julian Alberto
Publisher: name: Universidad Externado de Colombia
Year: 2020

description: Objetivos generales: * Analizar y valorar la información financiera del ente económico, interpretar y evaluar las cifras contenidas en los estados financieros y enfrentarse a una contabilidad global. Objetivos específicos: *Desarrollar habilidades de la contabilidad estratégica para la toma de decisiones; interpretando y evaluando las cifras contenidas en los estados financieros. *Interpretar la información financiera basado en su criterio contable bajo los nuevos marcos normativos. *Aportar conocimientos básicos con los cuales se determine la importación de interrelacionar las actividades comerciales, tributarias, administrativas y financieras con las normas expedidas por el Gobierno Nacional y el Comité de Normas Internacionales de Contabilidad. *Fomentar la importancia que reviste la responsabilidad, el criterio ético y la objetividad del Contador Público frente al manejo de la información financiera de la empresa. Facilitar las herramientas para que analizar la información no como un ente independiente, sino como un ente que interactúa dentro de un modelo económico global. *Fomentar la importancia que tiene para la empresa el sistema de control interno como el plan de la organización y todos los métodos coordinados y medidas adoptadas dentro de una empresa con el fin de salvaguardar sus activos y verificará la confiabilidad de la información financiera.
description: Este curso está dividido en cinco semanas de trabajo a través de las cuales el o la estudiante podrá adquirir herramientas para incentivar la toma de decisiones financieras y fomentar la importancia jurídica de las actividades comerciales.
Additional file 4 of Osa-miR162a fine-tunes rice resistance to Magnaporthe oryzae and Yield
Creators: name: Li, Xu-Pu
name: Ma, Xiao-Chun
name: Wang, He
name: Zhu, Yong
name: Liu, Xin-Xian
name: Li, Ting-Ting
name: Zheng, Ya-Ping
name: Zhao, Ji-Qun
name: Zhang, Ji-Wei
name: Huang, Yan-Yan
name: Pu, Mei
name: Feng, Hui
name: Fan, Jing
name: Li, Yan
name: Wang, Wen-Ming
Publisher: name: figshare
Year: 2020
Subjects: subject: Plant Biology
subject: FOS: Biological sciences

description: Additional file 4: Table S1. Primers used in this study.
title: Nappe phréatique. Profondeur hautes eaux (Mars 1959)
title: Nappe phréatique. Profondeur hautes eaux (Mars 1959)
Creators: name: :Unkn
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2023
Subjects: subject: Eau
subject: Nappe phréatique

description: Cartographie
description: BESM-carto_1961-90-p134_90-01
description: 134
description: 90
description: Bulletin économique et social du Maroc
description: Source: Maison méditerranéenne des sciences de l'homme, Cité numérique de la Méditerranée (Cinumed), Bibliothèque nationale du Royaume du Maroc (BNRM)
description: Source: Bulletin économique et social du Maroc
description: Source: Bulletin économique et social du Maroc (BESM) > BESM (Cartographie)
description: Relation: https://cinumed.mmsh.univ-aix.fr/idurl/1/82008
description: Coverage: Maroc
description: Coverage: XXe siècle
description: Temporal: XXe siècle
description: Bibliographic citation: « Nappe phréatique. Profondeur hautes eaux (Mars 1959) », In Bulletin économique et social du Maroc (BESM), n° 90, 1961
description: Provenance: Maison méditerranéenne des sciences de l'homme, Cité numérique de la Méditerranée (Cinumed), Bibliothèque nationale du Royaume du Maroc (BNRM)
description: Provenance: https://cinumed.mmsh.univ-aix.fr/
Encoding a magic state with beyond break-even fidelity
Creators: name: Gupta, Riddhi S.
name: Sundaresan, Neereja
name: Alexander, Thomas
name: Wood, Christopher J.
name: Merkel, Seth T.
name: Healy, Michael B.
name: Hillenbrand, Marius
name: Jochym-O'Connor, Tomas
name: Wootton, James R.
name: Yoder, Theodore J.
name: Cross, Andrew W.
name: Takita, Maika
name: Brown, Benjamin J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: To run large-scale algorithms on a quantum computer, error-correcting codes must be able to perform a fundamental set of operations, called logic gates, while isolating the encoded information from noise~\cite{Harper2019,Ryan-Anderson2021,Egan2021fault, Chen2022calibrated, Sundaresan2022matching, ryananderson2022implementing, Postler2022demonstration, GoogleAI2023}. We can complete a universal set of logic gates by producing special resources called magic states~\cite{Bravyi2005universal,Maier2013magic, Chamberland2022building}. It is therefore important to produce high-fidelity magic states to conduct algorithms while introducing a minimal amount of noise to the computation. Here, we propose and implement a scheme to prepare a magic state on a superconducting qubit array using error correction. We find that our scheme produces better magic states than those we can prepare using the individual qubits of the device. This demonstrates a fundamental principle of fault-tolerant quantum computing~\cite{Shor96}, namely, that we can use error correction to improve the quality of logic gates with noisy qubits. Additionally, we show we can increase the yield of magic states using adaptive circuits, where circuit elements are changed depending on the outcome of mid-circuit measurements. This demonstrates an essential capability we will need for many error-correction subroutines. Our prototype will be invaluable in the future as it can reduce the number of physical qubits needed to produce high-fidelity magic states in large-scale quantum-computing architectures.
description: 19 pages, 13 figures, 3 tables, comments welcome; v2 - Updated draft including new appendices following peer review. Includes a section on injecting the encoded magic state into larger codes (explicitly studying the surface code, the heavy-hex code and the color code) and a numerical section interrogating the fault-tolerant properties of the circuit