cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
SWEM: Towards Real-Time Video Object Segmentation with Sequential Weighted Expectation-Maximization
Creators: name: Lin, Zhihui
name: Yang, Tianyu
name: Li, Maomao
name: Wang, Ziyu
name: Yuan, Chun
name: Jiang, Wenhao
name: Liu, Wei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Matching-based methods, especially those based on space-time memory, are significantly ahead of other solutions in semi-supervised video object segmentation (VOS). However, continuously growing and redundant template features lead to an inefficient inference. To alleviate this, we propose a novel Sequential Weighted Expectation-Maximization (SWEM) network to greatly reduce the redundancy of memory features. Different from the previous methods which only detect feature redundancy between frames, SWEM merges both intra-frame and inter-frame similar features by leveraging the sequential weighted EM algorithm. Further, adaptive weights for frame features endow SWEM with the flexibility to represent hard samples, improving the discrimination of templates. Besides, the proposed method maintains a fixed number of template features in memory, which ensures the stable inference complexity of the VOS system. Extensive experiments on commonly used DAVIS and YouTube-VOS datasets verify the high efficiency (36 FPS) and high performance (84.3\% $\mathcal{J}\&\mathcal{F}$ on DAVIS 2017 validation dataset) of SWEM. Code is available at: https://github.com/lmm077/SWEM.
description: 15 pages with Supplementary Material
Evaluation Of Tax Compliance: In The Case Of Ethiopian Revenue And Customs Authority Merkato
Creators: name: Zewdie, Gezahegn
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: This research project was mainly set out with a general objective of evaluating ERCA's tax compliance specifically in the case of Merkato project. To achieve its objective, the study employed descriptive research approach whereby the researcher has collected data, through questionnaires and interviews which were conducted with higher level tax officials, tax experts and also reviews available documents such as annual reports, organization profiles, research papers, journals, books and online resources. The study focuses on evaluating the essential elements that account for tax compliance in respect of the objectives set for the project. The data gathered indicate that despite the Branch Office's efforts geared toward enhancing the awareness of taxpayers on various tax laws, most taxpayers still remain unresponsive and reluctant to accurately file, report and pay as specified for taxpayers. Based on the data analysis the researcher has found that the project objectives of block management system has gained some achievements particularly with respect to increasing tax revenue, voluntary compliance and tax awareness. The results of this study provide valuable insights to identify and gauge the factors that are important for instituting tax compliance and eventually allow the Branch Office to design and implement better tax compliance enhancing strategies that rectify the current gaps. In a nutshell the project has a lot do to ensuring high level of tax compliance that maximizes government revenue through establishing equity and transparency for taxpayers.
title: Effekt von Erfahrungen Medizinstudierender während des Blockpraktikums auf das Interesse an der Allgemeinmedizin
Creators: name: Herwig, Anna
name: Viehmann, Anja
name: Hamacher, Sandra
name: Fobbe, Gabriele
name: Gesenhues, Stefan
name: Weltermann, Birgitta
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Blockpraktikum Allgemeinmedizin
subject: Evaluation
subject: Nachwuchsmotivation
subject: 610 Medical sciences; Medicine

description: Hintergrund: Im Jahr 2002 wurde ein verpflichtendes allgemeinmedizinisches Blockpraktikum in die Ärztliche Approbationsordnung aufgenommen, um die Allgemeinmedizin als Fachbereich zu stärken. Bereits seit 1993 bietet unser Institut für Allgemeinmedizin die Teilnahme an einem zweiwöchigen[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 49. Kongress für Allgemeinmedizin und Familienmedizin
Physiological correlates of motion perception in marmoset monkeys
Creators: name: TRISTAN ANTHONY CHAPLIN
Publisher: name: Monash University
Year: 2018
Subjects: Neuroscience

description: When we see and hear objects move, specialised "motion processing" regions of the brain are activated. This thesis examined how the activity of cells in these regions encode the direction in which objects move. It found that a single cell can reliably encode the direction of visual motion, but the activity of multiple cells can be combined to give a better account of where objects are moving. However, these cells do not respond moving sounds. These results contribute to the understanding of the neural basis of motion perception, and demonstrate an anatomical distinction between visual and auditory motion processing.
Optimización en la elaboración de un yogurt a partir de lactosuero con cristales de áloe vera y granadilla (Passiflora ligularis juss)
Creators: name: Gutierrez Álzate, Katherine
name: Beltrán Cotta, Luis Alfonso
Publisher: name: Universidad de Cartagena
Year: 2016
Subjects: Granadilla (Passiflora ligularis juss);
Yogurt - Elaboración; Productos lácteos
Tecnología de alimentos;

description: Tesis (Ingeniero de Alimentos).--Universidad de Cartagena. Facultad de Ciencias E Ingenierías. Programa de Ingeniería de Alimentos, 2016
description: El objetivo de este trabajo fue optimizar una bebida láctea fermentada tipo yogur a partir de lactosuero con adición de cristales de aloe vera y granadilla (Passiflora ligularis juss), mediante la realización de diferentes pruebas las cuales fueron: fisicoquímicas (pH y acidez), microbiológicas (mohos y levaduras y coliformes totales), sensoriales, sinéresis y vida útil.
The use of a novel IFN-γ release assay to characterise cytomegalovirus (CMV) and immunological outcomes in transplant and HIV-infected individuals
Creators: name: MICHELLE KAREN YONG
Publisher: name: Monash University
Year: 2018
Subjects: subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: A lowered immune system in the setting of stem cell transplantation or human immunodeficiency virus (HIV) infection places individuals at high risk of infectious and non-infectious complications. This research evaluated the clinical use of easy, rapid, high throughput immune biomarkers to predict clinical outcomes such as cytomegalovirus (CMV)-related morbidity, end organ disease and/or overall mortality. The studies in this thesis showed that these markers were able to predict infectious complications and/or death. Use of these markers will have an important impact in the health care of future individuals undergoing immunosuppression.
Disordered Hyperuniform Quasi-1D Materials
Creators: name: Chen, Duyu
name: Liu, Yu
name: Zheng, Yu
name: Zhuang, Houlong
name: Chen, Mohan
name: Jiao, Yang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Carbon nanotubes are quasi-one-dimensional systems that possess superior transport, mechanical, optical, and chemical properties. In this work, we generalize the notion of disorder hyperuniformity, a recently discovered exotic state of matter with hidden long-range order, to quasi-one-dimensional materials. As a proof of concept, we then apply the generalized framework to quantify the density fluctuations in amorphous carbon nanotubes containing randomly distributed Stone-Wales defects. We demonstrate that all of these amorphous nanotubes are hyperuniform, i.e., the infinite-wavelength density fluctuations of these systems are completely suppressed, regardless of the diameter, rolling axis, number of rolling sheets, and defect fraction of the nanotubes. We find that these amorphous nanotubes are energetically more stable than nanotubes with periodically distributed Stone-Wales defects. Moreover, certain semiconducting defect-free carbon nanotubes become metallic as sufficiently large amounts of defects are randomly introduced. This structural study of amorphous nanotubes strengthens our fundamental understanding of these systems, and suggests possible exotic physical properties, as endowed by their disordered hyperuniformity. Our findings also shed light on the effect of dimensionality reduction on the hyperuniformity property of materials.
Zebra stripes with high gyro-harmonic numbers
Creators: name: Benáček, Jan
name: Karlický, Marian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Solar radio zebras are used in the determination of the plasma density and magnetic field in solar flare plasmas. Analyzing observed zebra stripes and assuming their generation by the double-plasma resonance (DPR) instability, high values of the gyro-harmonic number are found. In some cases, they exceed one hundred, in disagreement with the DPR growth rates computed up to now, which decrease with increasing gyro-harmonic number. We address the question of how the zebras with high values of the gyro-harmonic numbers $s$ are generated. For this purpose, we compute growth rates of the DPR instability in a very broad range of $s$, considering a loss-cone $κ$-distribution of superthermal electrons and varying the loss-cone angle, electron energies, and background plasma temperature. We numerically calculated dispersion relations and growth rates of the upper-hybrid waves and found that the growth rates increase with increasing gyro-harmonic numbers if the loss-cone angles are $\sim80^\circ$. The highest growth rates for these loss-cone angles are obtained for the velocity $v_κ= 0.15\,c$. The growth rates as function of the gyro-harmonic number still show well distinct peaks, which correspond to zebra-stripe frequencies. The contrast of the growth rate peaks to surrounding growth rate levels increases as the $κ$ index increases and the background temperature decreases. Zebras with high values of $s$ can be generated in regions where loss-cone distributions of superthermal electrons with large loss-cone angles ($\sim80^\circ$) are present. Furthermore, owing to the high values of $s$, the magnetic field is relatively weak and has a small spatial gradient in such regions.
description: 18 pages, 7 figures
Setting the scale for the CLS $2 + 1$ flavor ensembles
Creators: name: Bruno, Mattia
name: Korzec, Tomasz
name: Schaefer, Stefan
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present measurements of a combination of the decay constants of the light pseudoscalar mesons and the gradient flow scale $t_0$, which allow to set the scale of the lattices generated by CLS with $2 + 1$ flavors of non-perturbatively improved Wilson fermions. Mistunings of the quark masses are corrected for by measuring the derivatives of observables with respect to the bare quark masses.
description: 21 pages, 4 figures, Updated to match the published version
title: Prävention von nosokomialen Infektionen und Antbiotikaresistenzen in Altenpflegeheimen (PäNosInAA) – Ergebnisse einer multizentrischen RCT mit Cross-Over-Design
Creators: name: Klaschik, M.
name: Bouloumi, S.
name: Schnakenberg, R.
name: Hammerschmidt, J.
name: Liese, H.
name: Exner, M.
name: Manser, T.
name: Weckbecker, K.
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Antobiotikaresistenzen
subject: Hausärztliche Betreuung von Altenpflegeheimbewohnern
subject: Nosokomiale Infektionen
subject: 610 Medical sciences; Medicine

description: Hintergrund: Nosokomiale Infektionen sind nach wie vor eine große Herausforderung für Bewohner, Personal und Ärzte in Altenpflegeheimen. Durch die oft vorhandene Vielzahl der Hausärzte, sind auch Prävention und Therapie von Infektionen bei den Heimbewohnern individuell sehr [zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 49. Kongress für Allgemeinmedizin und Familienmedizin
Propuesta para la implementación de un sistema de vigilancia epidemiológica para la conservación auditiva dirigido al sector manufacturero de la fabricación del mueble de madera
Creators: name: Montoya Suarez, Ibis
Publisher: name: Universidad de Cartagena
Year: 2001
Subjects: Riesgo ocupacional

description: Monografía (Especialista en Salud Ocupacional) -- Universidad de Cartagena. Facultad de enfermería. Departamento de postgrado y educación continuada, 2001
description: El objetivo general que enmarca este proyecto es el de diseñar e implementar un sistema de vigilancia epidemiológica en la empresa Muebles del Caribe S.A. con el fin de detectar, prevenir y controlar alteraciones auditivas, luego que el diagnóstico de las condiciones de trabajo señalaron la presencia del ruido como factor de riesgo prioritario.
A Study of Causes of delay in Construction Projects: Case Study of Modjo Dry Port Construction Project
Creators: name: Boter, Belete
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: This study is primarily aimed at analyzing the causes of delay of ModjoDry Port Construction Project. The study identifies the perceptions of the major stakeholders (client, contractor and consultant) who have direct link to the issue of delays. Relevant literatures have been used to identify 49 potential causes of project delay. Toexaminethese causes of delay this study has used questionnaires and interviews to gather appropriate data and to answer the research questions. The data are both quantitative and qualitative. A total sample size of 40 respondents was targeted in the questionnaire and 8 respondents for interview. The respondents included contractors, consultants and client staffs who engaged in the project accomplishment. The questionnaire used Likert scale of 5 points to gather the perceptions of the respondents on causes of delay and four scales Likert to have information on frequency occurrence of the causes of delay. The Cronbach's alpha is used to test the internal consistency or reliability of Likertscale. To analyze the data, severity index (SI) and frequency index (FI) were used to rank the perceptions of stakeholders. The product of the two indices was also employed to generate Importance Index (II) in order to rank the overall degree of influence of the causes of delay to the project. The results have shown that the project has delayed due to designing(preparing design without adequate information, slow in preparing design, delay in approving revised design, and frequent design change), planning & scoping(deficiency in planning and lack of scope definition); consultant related issues(slow in design revision &design approving, poor communication, drawing without detailed data),contractor related(ineffective planning and scheduling, poor schedule management, under estimating activity cost and duration, poor activity sequencing, poor resource planning and poor time management);and the client related causes of delay such as slow in decision making, problem in contract administration, lack of skilled manpower, imposition of unrealistic contract duration & late issuance of change orders. The recommendations were forwarded to frontline players (client, consultant and contractor) in project to put their efforts on the project designing, planning & defining scope by the three stakeholders, as per their magnitudes of influence in order to realize the way in which the project would be completed in stipulated budget and time.
Relación entre infraestructura física y formación académica en la Universidad de Cartagena Cread Lorica
Creators: name: Vega Núñez, Darwin Guillermo
name: Burgos Tordecilla, Roberto Carlos
Publisher: name: Universidad de Cartagena
Year: 2016
Subjects: Educación superior
Formación academica - Universidad de Cartagena - Cread Lorica
Educación superior - Calidad
Capital humano

description: Tesis (Administrador de Empresas).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Administración de Empresas a Distancia, 2016
description: El presente estudio tiene por objeto diagnosticar por qué la infraestructura física incide en la formación académica de los estudiantes de la universidad de Cartagena Cread Lorica.
Análisis del comercio exterior a través del terminal marítimo y fluvial de cartagena y su participación en la economía bolivarense en el periodo de 1987-1988
Creators: name: Bonilla Morales, Martin
name: Padilla Castillo, Lenis
Publisher: name: Universidad de Cartagena
Year: 1990
Subjects: Comercio exterior

description: Tesis (Economista) -- Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Economía. 1990.
description: El presente estudio tiene por objeto estudiar y analizar como se da el comercio Exterior por el terminal marítimo y fluvial de Cartagena y su participación en la economía bolivarense.
Tratamiento de aguas residuales usando Rhizophora mangle (Mangle rojo) para la remoción de nutrientes y materia orgánica en un humedal artificial de flujo vertical
Creators: name: Caballero Peluffo, Jhonatan
name: Osorio Fernández, Reynaldo
Publisher: name: Universidad de Cartagena
Year: 2016
Subjects: Aguas residuales - Tratamientos
Tratamiento de aguas residuales
Remocion de nutrientes
Humedales artificiales

description: Tesis (Ingeniero Civil).--Universidad de Cartagena. Facultad de Ciencias E Ingenierías. Programa de Ingeniería Civil, 2016
description: El objetivo de esta investigación busca evaluar la función depuradora del mangle rojo utilizado como vegetación de una planta piloto de humedal artificial de flujo vertical a escala laboratorio para el tratamiento de las aguas residuales provenientes de las instalaciones de la Universidad de Cartagena campus Piedra de Bolívar.
Inverse-Dynamics MPC via Nullspace Resolution
Creators: name: Mastalli, Carlos
name: Chhatoi, Saroj Prasad
name: Corbères, Thomas
name: Tonneau, Steve
name: Vijayakumar, Sethu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Optimal control (OC) using inverse dynamics provides numerical benefits such as coarse optimization, cheaper computation of derivatives, and a high convergence rate. However, to take advantage of these benefits in model predictive control (MPC) for legged robots, it is crucial to handle efficiently its large number of equality constraints. To accomplish this, we first (i) propose a novel approach to handle equality constraints based on nullspace parametrization. Our approach balances optimality, and both dynamics and equality-constraint feasibility appropriately, which increases the basin of attraction to high-quality local minima. To do so, we (ii) modify our feasibility-driven search by incorporating a merit function. Furthermore, we introduce (iii) a condensed formulation of inverse dynamics that considers arbitrary actuator models. We also propose (iv) a novel MPC based on inverse dynamics within a perceptive locomotion framework. Finally, we present (v) a theoretical comparison of optimal control with forward and inverse dynamics and evaluate both numerically. Our approach enables the first application of inverse-dynamics MPC on hardware, resulting in state-of-the-art dynamic climbing on the ANYmal robot. We benchmark it over a wide range of robotics problems and generate agile and complex maneuvers. We show the computational reduction of our nullspace resolution and condensed formulation (up to 47.3%). We provide evidence of the benefits of our approach by solving coarse optimization problems with a high convergence rate (up to 10 Hz of discretization). Our algorithm is publicly available inside CROCODDYL.
description: 20 pages, 14 figures, accepted to IEEE TRO
title: Beitrag bundesweiter Gesundheitssurveys zum Monitoring von Asthma bronchiale bei Erwachsenen in Deutschland
Creators: name: Steppuhn, H.
name: Mueters, S.
name: Dahm, S.
name: Knopf, H.
name: Keil, T.
name: Scheidt-Nave, C.
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Asthma brochiale
subject: Erwachsene
subject: Versorgung
subject: 610 Medical sciences; Medicine

description: Hintergrund/Studienfrage: Das bundesweite Gesundheitsmonitoring des RKI liefert die Datenbasis für eine aktuelle Einschätzung zur Entwicklung der Prävalenz von Asthma bronchiale über die Zeit. Zusätzlich werden Indikatoren der Asthma-Versorgung abgebildet und deren Variation[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 49. Kongress für Allgemeinmedizin und Familienmedizin
Comparison among dimensionality reduction techniques based on Random Projection for cancer classification
Creators: name: Xie, Haozhe
name: Li, Jie
name: Zhang, Qiaosheng
name: Wang, Yadong
Publisher: name: arXiv
Year: 2016
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Random Projection (RP) technique has been widely applied in many scenarios because it can reduce high-dimensional features into low-dimensional space within short time and meet the need of real-time analysis of massive data. There is an urgent need of dimensionality reduction with fast increase of big genomics data. However, the performance of RP is usually lower. We attempt to improve classification accuracy of RP through combining other reduction dimension methods such as Principle Component Analysis (PCA), Linear Discriminant Analysis (LDA), and Feature Selection (FS). We compared classification accuracy and running time of different combination methods on three microarray datasets and a simulation dataset. Experimental results show a remarkable improvement of 14.77% in classification accuracy of FS followed by RP compared to RP on BC-TCGA dataset. LDA followed by RP also helps RP to yield a more discriminative subspace with an increase of 13.65% on classification accuracy on the same dataset. FS followed by RP outperforms other combination methods in classification accuracy on most of the datasets.
Gauge Theory Couplings on Anisotropic Lattices
Creators: name: Carena, Marcela
name: Gustafson, Erik J.
name: Lamm, Henry
name: Li, Ying-Ying
name: Liu, Wanqiang
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The advantage of simulating lattice field theory with quantum computers is hamstrung by the limited resources that induce large errors from finite volume and sizable lattice spacings. Previous work has shown how classical simulations near the Hamiltonian limit can be used for setting the lattice spacings in real-time through analytical continuation, thereby reducing errors in quantum simulations. In this work, we derive perturbative relations between bare and renormalized quantities in Euclidean spacetime at any anisotropy factor -- the ratio of spatial to temporal lattice spacings -- and in any spatial dimension for $U(N)$ and $SU(N)$. This reduces the required classical preprocessing for quantum simulations. We find less than $10\%$ discrepancy between our perturbative results and those from existing nonperturbative determinations of the anisotropy for $SU(2)$ and $U(1)$ gauge theories. For the discrete groups $\mathbb{Z}_{10}$, $\mathbb{Z}_{100}$ and $\mathbb{BI}$, we perform lattice Monte Carlo simulations to extract anisotropy factors and observe similar agreement with our perturbative results.
description: 10 pages, 8 figures
Clinical Competence of the Graduate Nurse in the Emergency Department in Saudi Arabia
Creators: name: MISHAL AWADH F ALDAIHANI
Publisher: name: Monash University
Year: 2018
Subjects: subject: 110305 Emergency Medicine
subject: FOS: Clinical medicine
subject: 111003 Clinical Nursing: Secondary (Acute Care)
subject: FOS: Health sciences
subject: Medicine

description: The level of competence among new Saudi graduate nurses working in the Emergency Department of 14 hospitals in Saudi Arabia was explored for the first time. Nurses perceived themselves as good communicators, and had divided opinions on whether they were satisfied with their competence. Educators perceived them as not adequately prepared and unsafe. Recommendations include supportive Emergency Care Orientation programs for new graduates in transition to staff nurse.
Thermalization of the Lipkin-Meshkov-Glick model in blackbody radiation
Creators: name: Macrì, Tommaso
name: Ostilli, Massimo
name: Presilla, Carlo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In a recent work, we have derived simple Lindblad-based equations for the thermalization of systems in contact with a thermal reservoir. Here, we apply these equations to the Lipkin-Meshkov-Glick model (LMG) in contact with a blackbody radiation and analyze the dipole matrix elements involved in the thermalization process. We find that the thermalization can be complete only if the density is sufficiently high, while, in the limit of low density, the system thermalizes partially, namely, within the Hilbert subspaces where the total spin has a fixed value. In this regime, and in the isotropic case, we evaluate the characteristic thermalization time analytically, and show that it diverges with the system size in correspondence of the critical points and inside the ferromagnetic region. Quite interestingly, at zero temperature the thermalization time diverges only quadratically with the system size, whereas quantum adiabatic algorithms, aimed at finding the ground state of same system, imply a cubic divergence of the required adiabatic time.
description: 13 pages, 3 figures
Software para apoyar la toma de decisiones en el área de mercadeo y ventas
Creators: name: Bolaños Herazo, José Luis
name: Suarez Carrillo, Julio Cesar
Publisher: name: Universidad de Cartagena
Year: 2011
Subjects: Toma de decisiones - Software
Solución de problemas - Software
Automatización

description: Tesis (Ingeniero de Sistemas).--Universidad de Cartagena. Facultad de Ciencias E Ingenierías. Programa de Ingeniería de Sistemas, 2011
description: El presente estudio tiene por objeto diseñar y desarrollar un software para apoyar la toma de decisiones en el área de mercadeo y ventas con una aplicación web haciendo uso de los conocimientos de algoritmos de asociación.
On the Equivalence of Module Categories over a Group-Theoretical Fusion Category
Creators: name: Natale, Sonia
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 18D10

description: We give a necessary and sufficient condition in terms of group cohomology for two indecomposable module categories over a group-theoretical fusion category ${\mathcal C}$ to be equivalent. This concludes the classification of such module categories.
Relaciones entre la teoría de la estructura semántica del texto y los niveles de evaluación por competencia
Creators: name: Herazo Cervantes, Katrina Sharon
Publisher: name: Universidad de Cartagena
Year: 2001
Subjects: Semántica

description: Tesis (Profesional en Lingüística y Literatura) -- Universidad de Cartagena. Facultad de Ciencias Humanas. Programa de Lingüística y Literatura, 2001
description: De ésta manera, lo que se está buscando es orientar al maestro hacia el horizonte o rumbo que está tomando la política educativa, cuya idea principal es convertir en objetivo fundamental de la educación básica la preparación de los alumnos. Esto para responder adecuadamente a las exigencias de las sociedades actuales, mediante el desarrollo de ciertas capacidades que los conduzcan a asumir la educación de una manera autónoma, formándolas como ciudadanos idóneos o competentes y llevar a cabo adecuada y oportunamente un determinado saber teórico.
Scanning Electron Microscopy (SEM) - Metadata extraction tool and schema mapper
Creators: name: Joseph, Reetu Elza
name: Vitali, Elias Guilio Georg
name: Aversa, Rossella
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2023
Subjects: SEM
TIFF
Schema
Metadata
Mapping
Zeiss
Scanning Electron Microscopy
Electron Microscopy

description: The management of research data should follow the guidelines provided by the FAIR (Findable, Accessible, Interoperable and Reusable) principles. In particular, data should be described by rich metadata following community standards and schemas in order to be reused. Collecting a plurality of metadata attributes can be demanding for the user, if manually performed. Thus, this task should be automated whenever possible, and tools need to be developed to fulfil it. As an example of application, we focused on the image data generated from Scanning Electron Microscopy (SEM) measurements in the TIFF file format. We developed a Python tool which extracts the metadata attributes enclosed in the file and maps them to a metadata schema we published in 2021, which reached a consensus within the user community of the projects we are involved in (NFFA-Europe Pilot, Joint Lab MDMC "Integrated Model and Data-driven Materials Characterization", NFDI-MatWerk). The tool is provided with a web Graphical User Interface (GUI), which enables the users to access and use it without any prior programming knowledge. The final output is a downloadable JSON metadata document containing the extracted attributes. The document can be further enriched manually in order to provide the attributes of the schema which are not available in the TIFF file. This task can be performed by using an Electronic Laboratory Notebook (ELN), if JSON import is supported. To ease the user, we also offered a custom JavaScript interface to be employed as an alternative to ELNs to edit the metadata document according to the schema. Once the metadata document has been filled in, it can be stored in a metadata repository and linked to the persistent identifier of the repository where the data it describes is deposited. The MetaStore provided by the Karlsruhe Institute of Technology-Steinbuch Centre for computing (KIT-SCC) is an example of such a metadata repository, offering schema registration and metadata validation. The current version of the SEM extraction and mapping tool is limited to TIFF files generated by Zeiss microscopes. It would be extended to other vendors and third party acquisition softwares in future.
Modeling of fluid imbibition and chemical tracer transport in porous media for oil recovery applications
Creators: name: Velasco Lozano, Moises
name: 0000-0002-8397-7284
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: Spontaneous imbibition
Chemical tracer transport
Analytical solutions
Convolutional neural networks
Oil recovery
Porous media

description: Modeling of fluid and solute transport in porous media is fundamental to describing driving mechanisms of recovery methods before their field application, however, conventional simulations and experiments demand time and expertise. Therefore, this research work presents novel real-time solutions for spontaneous imbibition (SI) and chemical tracer transport in porous media for two-phase flow. Although imbibition tests are critical to evaluating the displacement of oil by water and chemical solutions, the existing models fail to properly estimate the entire imbibition process. Therefore, a new semi-analytical solution for SI, valid during the infinite-acting and boundary-dominated regimes, was derived. The solution was validated with experimental data for different flow geometries under diverse flow conditions and capillary pressure functions, obtaining differences of less than 5%. Additionally, a numerical model is presented to examine SI in cores with a discrete fracture by including a new transfer function in the fracture equation to account for the fluid exchange at the matrix-fracture boundary. As a result, the flow model is reduced to a one-dimensional equation that is numerically solved using finite differences, leading to the accurate and rapid modeling of fluid displacement, obtaining results comparable to two-dimensional simulations. In addition, first-ever solutions are presented for the modeling of chemical tracer transport in two-phase flow in capillary- and advective-dominated systems at core scale, accounting for hydrodynamic dispersion, partitioning, and adsorption. These novel solutions are derived using Laplace transform and a series of transformation variables that simplify the highly nonlinear advection-dispersion equation, resulting in real-time analysis with simple mathematical expressions that do not require complex numerical calculations or inversion methods. Finally, a convolutional neural network is developed to estimate residual oil saturation based on the generation of partitioning tracer responses as a function of ideal tracer profiles, where the results obtained demonstrate that this machine learning method serves as a complementary tool to significantly reduce the number of reservoir simulations. Thus, the models described in this work are innovative approaches that facilitate the analysis of fluid and tracer dynamics at core and field scales for oil recovery and subsurface applications.
Morphological Examination of Clostridium sordellii Spores and Characterisation of Outer Spore Proteins
Creators: name: REBECCA RABI
Publisher: name: Monash University
Year: 2018
Subjects: subject: Microbiology
subject: FOS: Biological sciences

description: Clostridium sordellii is a human and animal pathogen with a mortality rate approaching 100%. Crucial to the infectious cycle of this microbe is its ability to produce a form of itself that is difficult to eradicate, called a spore. This thesis describes the C. sordellii spore structure and shows that it is composed of multiple layers that contribute to its strength. Proteins were identified in the outer spore layers which are critical for spore structural integrity and viability, and for the clearance of bacteria from the infected gastrointestinal tract, yielding a greater understanding of this bacterium and its spore form.
title: Diagnostik demenzieller Erkrankungen vor dem 70. Lebensjahr – für Hausärzte zu früh, für Forscher zu spät? Ergebnisse des Projektes NEUROTRANS
Creators: name: Herrmann, M.
name: Robra, B.-P.
name: Eich-Krohm, A.
name: Von Hintzenstern, J.
name: Marx, Y.
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Früherkennung Demenz
subject: Hausärztliche Tätigkeit
subject: Wissenstransfer
subject: 610 Medical sciences; Medicine

description: Hintergrund: Das Projekt NEUROTRANS erforscht seit Oktober 2013 an der medizinischen Fakultät der Otto-von Guericke-Universität Magdeburg Möglichkeiten, um einen Transfer neurowissenschaftlicher Erkenntnisse in die hausärztliche Praxis zu ermöglichen. Gleichzeitig soll ein (Rück-)Transfer[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 49. Kongress für Allgemeinmedizin und Familienmedizin
Carbon adsorption and life cycle analysis of natural gas production and utilization
Creators: name: Albokhari, Abdalhadi Mahmood
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: Specific surface area
Carbon adsorption
Life cycle analysis

description: The increasing greenhouse gas (GHG) emission shows unprecedented challenge that should warn governments and industries to address this global issue. Carbon dioxide is the main source of GHG. The carbon dioxide emission should be curtailed by implementing carbon capture projects, including testing of solid adsorbents. As natural gas production and utilization grow in many industries, the carbon footprint should be quantified by establishing a life cycle analysis using “cradle to grave” methodology. Adsorption is one of many methodologies that separate CO₂ from flue gas. In this thesis, Brunauer Emmett Teller (BET) theory is utilized to measure the specific surface areas of solid adsorbents, such as, activated carbon, polyurethane samples and shales (Permian, Mancos and Eagle Ford) from nitrogen adsorption. Next, CO₂ adsorption is measured by using Micromeritcs 3Flex instrument at 0°C. BET experiments show that the activated carbon had a high specific area of 1138 m²/g. In contrast, Ottawa sand and polyurethane samples had low specific surface area. The specific surface area of Permian, Mancos and Eagle Ford shales ranged from 2-8 m²/g, which mainly depends on the clay content of the shale. Carbon dioxide adsorption was measured from 0.1 to 1 atm at 0°C. Adsorption capacity of the activated carbon was around 85 cm³/g whereas for shales was less than 1 cm³/g. This specific surface area correlated with the adsorption capacity. Life cycle analysis (LCA) is a key methodology to assess the carbon footprint of any substance including natural gas. Natural gas is widely used in many service sectors in United States. In this thesis, LCA is pursued to calculate the carbon footprint of natural gas using the cradle to grave method by constructing a simple model using Excel. This model inputs carbon footprint of fuels in gCO₂/kWh and the energy footprint of used materials during LCA such as steel, cement and steel pipes in kWh/kg. The carbon footprint is calculated during the gas extraction, processing, flaring, transportation, utility and plug and abandonment stages. The LCA duration is set to be 10 years. The total carbon footprint is calculated by quantifying the required energy of each stage in kWh then dividing by the total energy produced during the lifecycle in kWh. Additionally, the cost is calculated by averaging the Henry Hub price and the utility price in Rhode Island, which operates 94% of its electric grid by natural gas power plants. This study shows the carbon footprint of natural gas to be 185.7 gCO2/kWh with an average cost of $0.10/kWh. The utility stage has the highest carbon footprint in LCA of natural gas. This model would help in assessing the carbon intensity of natural gas for any country in the world.
Assessing The Contribution Of Project Management Information System In Dashen And Awash Banks Sc
Creators: name: Bekele, Dawit
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: The study tried to evaluate the major function of project management information system and assess its contribution towards project success in Dashen and Awash Bank Sc since recent phenomena of modern banking system in Ethiopia led us to be capable of automating the banking operation including the project management departments as needed and research findings suggested that a need for efficient information and communication support address this issue as a deeper organization feature embedded in a multi project organization setting. The study implements quantitative research method that variables have been measured with numerical data and analyzed with statistical procedures. Accordingly, it has found that PMIS factor has significant contribution to the performance of project accomplishment of the Dashen and Awash Banks Sc. Additionally PMIS has a greater contribution to managerial function that the manager uses to perform each activity of the project life cycle. And hence, this study has recommended that priority should be given to develop and deploy PMIS in banking industry so as to improve their project performance
An Alternative Approach to Quantum Imaginary Time Evolution
Creators: name: Jouzdani, Pejman
name: Johnson, Calvin W.
name: Mucciolo, Eduardo R.
name: Stetcu, Ionel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: There is increasing interest in quantum algorithms that are based on the imaginary-time evolution (ITE), a successful classical numerical approach to obtain ground states. However, most of the proposals so far require heavy post-processing computational steps on a classical computer, such as solving linear equations. Here we provide an alternative approach to implement ITE. A key feature in our approach is the use of an orthogonal basis set: the propagated state is efficiently expressed in terms of orthogonal basis states at every step of the evolution. We argue that the number of basis states needed at those steps to achieve an accurate solution can be kept of the order of $n$, the number of qubits, by controlling the precision (number of significant digits) and the imaginary-time increment. The number of quantum gates per imaginary-time step is estimated to be polynomial in $n$. Additionally, while in many QAs the locality of the Hamiltonian is a key assumption, in our algorithm this restriction is not required. This characteristic of our algorithm renders it useful for studying highly nonlocal systems, such as the occupation-representation nuclear shell model. We illustrate our algorithm through numerical implementation on an IBM quantum simulator.
Large-field CO(1--0) observations toward the Galactic historical supernova remnants: a large cavity around Tycho's supernova remnant
Creators: name: Chen, Xuepeng
name: Xiong, Fang
name: Yang, Ji
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The investigation of the interaction between the supernova remnants (SNRs) and interstellar gas is not only necessary to improve our knowledge of SNRs, but also to understand the nature of the progenitor systems. As a part of the Milky Way Imaging Scroll Painting CO line survey (MWISP), we study the interstellar gas surrounding the Galactic historical SNRs, using the PMO 13.7-meter telescope. In this work, we present large-field (3$^\circ$$\times$2$^\circ$) and high-sensitivity CO(1-0) molecular line observations toward Tycho's SNR. The CO observations reveal, from the outside in, large molecular clouds, stream-like structures, and an inner rim around Tycho's SNR. We derived the basic properties (column density, mass, and kinematics) of these objects based on the CO observations. The large molecular clouds individually show an arc toward the remnant center, outlining a large cavity with radii of $\sim$0.3$^\circ$$\times$0.6$^\circ$ (or 13 pc $\times$27 pc at a distance of 2.5 kpc) around the remnant. The CO line broadenings and asymmetries detected in the surrounding clouds, the observed expansion of the cavity, in concert with enhanced $^{12}$CO(2-1)/(1-0) intensity ratio detected in previous studies, suggest the interaction of the large cavity with a wind in the region. After excluding the scenario of a large bubble produced by bright massive stars, we suggest that the large cavity could be explained by accretion wind from the progenitor system of Tycho's supernova. Nevertheless, the possibility of the random distribution of a large cavity around Tycho's SNR cannot be ruled out thus far. Further observations are needed to confirm the physical association of the large cavity with Tycho's SNR.
description: 15 pages, 9 figures, updated according to the A&A proof
Insight into Atypical Attention and Perception in Autism Spectrum Disorder: The Relevance of Considering Individual Motor Proficiency
Creators: name: EBONY RENEE LINDOR
Publisher: name: Monash University
Year: 2018
Subjects: subject: 170101 Biological Psychology (Neuropsychology, Psychopharmacology, Physiological Psychology)
subject: FOS: Psychology

description: Researchers are interested in the way individuals with Autism Spectrum Disorder attend to and perceive their visual environment, as atypical attention and perception is thought to contribute to the social and behavioural symptoms that define the disorder. This research revealed that attentional and perceptual anomalies vary as a function of motor proficiency in these individuals. Those with more pronounced motor difficulties showed greater difficulties with attention and perception, while those with better motor function showed subtler anomalies. Understanding the abilities of different individuals on the spectrum may offer insight into the underpinnings of the disorder and inform more targeted treatments.
Models of dielectric relaxation based on completely monotone functions
Creators: name: Garrappa, Roberto
name: Mainardi, Francesco
name: Maione, Guido
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Complex Variables (math.CV)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 26A33, 33E12, 34A08, 26A48, 44A10, 91B74

description: The relaxation properties of dielectric materials are described, in the frequency domain, according to one of the several models proposed over the years: Kohlrausch-Williams-Watts, Cole-Cole, Cole-Davidson, Havriliak-Negami (with its modified version) and Excess wing model are among the most famous. Their description in the time domain involves some mathematical functions whose knowledge is of fundamental importance for a full understanding of the models. In this work, we survey the main dielectric models and we illustrate the corresponding time-domain functions. In particular, we stress the attention on the completely monotone character of the relaxation and response functions. We also provide a characterization of the models in terms of differential operators of fractional order.
description: 44 pages, 26 figures
On the integrable gravity coupled to fermions
Creators: name: Belinski, Vladimir A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the present letter we indicate an extension of the pure gravity inverse scattering integration technique to the case when fermions (introduced on the base of supersymmetry) are present. In this way the integrability technique for simple ($N=1$) supergravity in two space-time dimensions coupled to the matter fields taking values in the Lie algebra of $E_{8\left( +8\right) }$ group is developed. This theory contains matter living only in one Weyl representation of $SO\left( 16\right) $ and represents the reduction to two dimensions of the three-dimensional simple supergravity constructed in [1]. Our spectral linear problem use superspace and covers the complete set of principal bosonic and fermionic equations of motion. This linear system, as in pure gravity, contains only the first order poles with respect to the spectral parameter. The procedure of constructing the exact super-solitonic solutions is outlined.
description: Version 1611.02924v1 was withdrawn due to groundless assumption on the existence of the relation (43). In footnote 7 it was stressed that its proof remains to be seen. Analysis showed that such relation indeed is doubtful. Then the extension of the pure gravity inverse scattering method to superspace surely can cover only the simple integrable supergravity with E8(8) symmetry