cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fortalecimiento del componente científico natural en estudiantes de 3° mediante un aula virtual de aprendizaje en Google Classroom
Creators: name: Tafur Quiroz, Katerine Lisbet
Publisher: name: Universidad de Cartagena
Year: 2021
Subjects: subject: Tecnología educativa
subject: Sitios web educativos
subject: Aprendizaje - Estrategia
subject: Educación primaria

description: Los problemas derivados del área de Ciencias Naturales en el Instituto Técnico Superior Industrial Sede D en Barrancabermeja, Santander, se encuentran reflejados en la poca observación científica del medio ambiente que rodea a los educandos, la carente formulación de preguntas sobre objetos, organismos y fenómenos del entorno y el desinterés por el diseño y realización de experiencias para poner a prueba diferentes conjeturas en las clases escolares, los cual no permite que los niños y niñas puedan proponer y verificar necesidades de los seres vivos. Desde este panorama se propone un proceso investigativo enfocado principalmente a fortalecer el conocimiento como científico natural en estudiantes del grado tercero de la educación básica primaria mediante la implementación de un Aula Virtual de Aprendizaje en Google Classroom Esto mediante una metodología de enfoque cualitativo bajo el modelo de investigación Acción Participativa buscando comprender e interpretar la labor docente, las didácticas, las prácticas, y los niveles de apropiación de las TIC en el área de las ciencias naturales. De igual manera, se formuló como instrumentos de recolección de información el Pretest, la elaboración de la propuesta y posteriormente la comprobación del impacto obtenido mediante el Pos-test. Como resultados finales, se obtiene que la mediación de la plataforma digital utilizada realmente constituye un recurso promotor del aprendizaje activo que fortalece el conocimiento científico natural de los estudiantes, aumentando sus competencias y habilidades para analizar y reflexionar sobre entornos y fenómenos de la naturaleza.
Evaluación del sistema de manejo de los residuos sólidos en el casco urbano del Municipio de Maríalabaja, Bolívar
Creators: name: Martinez Morales, Jackeline
name: Pantoja Marquez, Geiber
Publisher: name: Universidad de Cartagena
Year: 2003
Subjects: Productos de residuos
Residuos sólidos
Basuras y aprovechamiento de basuras

description: Tesis (Ingeniero Civil) -- Universidad de Cartagena. Facultad de Ciencias E Ingenierías. Programa de Ingeniería Civil, 2003.
description: El presente estudio tiene por objeto analizar el manejo de los desechos sólidos en la cabecera municipal de Maria Labaja, Bolivar para evaluar las condiciones encontradas en las etapas de recolección, transporte y disposición final de los residuos y plantear alternativas de solución.
Sozialismus und Kapitalismus in der päpstlichen Soziallehre
Creators: name: Mette, Norbert
name: Kiesow, Ernst-Rüdiger
Publisher: name: Concilium
Year: 1970

description: Concilium, Bd. 27 Nr. 5 (1991): Concilium: Internationale Zeitschrift für Theologie, Band 27, Heft 5
Superconductivity in a misfit phase combining a topological crystalline insulator and a layered transition metal dichalcogenide
Creators: name: Luo, Huixia
name: Yan, Kai
name: Xie, Weiwei
name: Phelan, Brendan F.
name: Cava, R. J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report the characterization of the misfit compound (Pb1-xSnxSe2)1.16(TiSe2)2, in which a [100] rocksalt bilayer of Pb1-xSnxSe, which is a topological crystalline insulator in bulk form, alternates with a double layer of the normally non-superconducting layered transition metal dichalcogenide TiSe2. The x dependence of Tc displays a weak dome-like shape with a maximum Tc of 4.5 K at x = 0.2; there is only a subtle change in Tc corresponding to the expected trivial to topological transition in the Pb1-xSnxSe bi-layer. We present a more detailed characterization of the superconductor at x = 0.4, for which the bulk Pb1-xSnxSe phase is in the topological crystalline insulator regime. For this material, the Sommerfeld parameter gamma =11.06 mJ mol-1 K-2, the Debye temperature delta D = 161 K, the normalized specific heat jump value delta C/ gamma Tc = 1.38 and the electron-phonon constant value lambda ep = 0.72, suggesting that (Pb0.6Sn0.4Se)1.16(TiSe2)2 is a BCS-type weak coupling superconductor. This material is of interest for probing the interaction of superconductivity with the surface states of a topological crystalline insulator.
description: 16 pages, 6 figures
El cuento: Fuente para el aprendizaje de la lectura y escritura de los estudiantes del grado 1° de la Institución Educativa Técnica Agroindustrial República de Colombia Arjona - Bolívar.
Creators: name: Porto Blanco, Kelly Jhoanna
name: Caballero Daza, Maira Esther
Publisher: name: Universidad de Cartagena
Year: 2016
Subjects: Lectura - Enseñanza

description: Tesis (Licenciado en Pedagogía Infantil) -- Universidad de Cartagena en convenio con la Universidad del Tolima. Facultad de Ciencias Sociales. Programa de Licenciatura en Pedagogía Infantil, 2016
description: El propósito del proyecto es promover el aprendizaje de la lectura y la escritura por medio del cuento, en la Institución Educativa Técnica Agroindustrial Republica de Colombia.
Additional file 1 of Human dyskerin binds to cytoplasmic H/ACA-box-containing transcripts affecting nuclear hormone receptor dependence
Creators: name: Zacchini, Federico
name: Venturi, Giulia
name: De Sanctis, Veronica
name: Bertorelli, Roberto
name: Ceccarelli, Claudio
name: Santini, Donatella
name: Taffurelli, Mario
name: Penzo, Marianna
name: Treré, Davide
name: Inga, Alberto
name: Dassi, Erik
name: Montanaro, Lorenzo
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: Computational Biology

description: Additional file 1: Supplementary Figures S1-S5.
Estudio socio-económico de la cabecera municipal de Santa Catalina
Creators: name: Rodriguez Avila, William Enrique
name: Ripoll Manjarres, Hernando
Publisher: name: Universidad de Cartagena
Year: 1984
Subjects: Santa Catalina (Bolívar)-Colombia-Condiciones socioeconómicas
Santa Catalina (Bolívar)-Colombia-Política y gobierno

description: Tesis (Economista).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Economía.
description: El presente estudio tiene por objeto conocer las condiciones socio-económicas que se dan en la cabecera municipal de santa catalina.
Data-Driven High-Throughput Rational Design of Double-Atom Catalysts for Oxygen Evolution and Reduction
Creators: name: Wu, Lianping
name: Guo, Tian
name: Li, Teng
Publisher: name: Wiley
Year: 2022
Subjects: double-atom catalysts
machine learning
oxygen evolution reaction
oxygen reduction reaction
single-atom catalysts

description: Surging interests exist in double-atom catalysts (DACs), which not only inherit the advantages of single-atom catalysts (SACs) (e.g., ultimate atomic utilization, high activity, and selectivity) but also overcome the drawbacks of SACs (e.g., low loading and isolated active site). The design of DACs, however, remains cost-prohibitive for both experimental and computational studies, due to their huge design space. Herein, by means of density functional theory (DFT) and topological information-based machine-learning (ML) algorithms, we present a data-driven high-throughput design principle to evaluate the stability and activity of 16 767 DACs for oxygen evolution (OER) and oxygen reduction (ORR) reactions. The rational design reveals 511 types of DACs with OER activity superior to IrO2 (110), 855 types of DACs with ORR activity superior to Pt (111), and 248 bifunctional DACs with high catalytic performance for both OER and ORR. An intrinsic descriptor is revealed to correlate the catalytic activity of a DAC with the electronic structures of the DAC and its bonding carbon surface structure. This data-driven high-throughput approach not only yields remarkable prediction precision (>0.926 R-squared) but also enables a notable 144 000-fold reduction of screening time compared with pure DFT calculations, holding promise to drastically accelerate the design of high-performance DACs.
MIMO Precoding for Networked Control Systems with Energy Harvesting Sensors
Creators: name: Cai, Songfu
name: Lau, Vincent K. N.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, we consider a MIMO networked control system with an energy harvesting sensor, where an unstable MIMO dynamic system is connected to a controller via a MIMO fading channel. We focus on the energy harvesting and MIMO precoding design at the sensor so as to stabilize the unstable MIMO dynamic plant subject to the energy availability constraint at the sensor. Using the Lyapunov optimization approach, we propose a closed-form dynamic energy harvesting and dynamic MIMO precoding solution, which has an event-driven control structure. Furthermore, the MIMO precoding solution is shown to have an eigenvalue water-filling structure, where the water level depends on the state estimation covariance, energy queue and the channel state, and the sea bed level depends on the state estimation covariance. The proposed scheme is also compared with various baselines and we show that significant performance gains can be achieved.
description: 16 pages, 7 figures
July 28 Thursday
Creators: name: Graves, Robert, 1895-1985
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: subject: Graves, Robert, 1895-1985
valueUri: http://id.worldcat.org/fast/31293
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945

description: Page from Robert Graves diary manuscript. The diary includes 1,546 pages with 117 enclosures: letters, clippings, photographs post cards, notes, games.
Consideraciones sobre el aborto
Creators: name: Díaz Villareal, Giovanni
Publisher: name: Universidad de Cartagena
Year: 1979
Subjects: Aborto
Derecho de familia

description: Tesis (Abogado) -- Universidad de Cartagena. Facultad de Derecho y Ciencias Políticas. Programa de Derecho, 1979
description: Historia, conceptos y tipicación en el derecho penal colombiano y en la legislación extranjera, la manera como se difunde en el ambiente social, incorporando puntos de vistas, médicos y católicos, con los reportes que le hacen a los instintos de elevar el plano legal.
"Rerum novarum" - Ergebnis der christlichen Sozialbewegungen "von unten"
Creators: name: Schäfers, Michael
Publisher: name: Concilium
Year: 1970

description: Concilium, Bd. 27 Nr. 5 (1991): Concilium: Internationale Zeitschrift für Theologie, Band 27, Heft 5
Deep convolutional networks for automated detection of posterior-element fractures on spine CT
Creators: name: Roth, Holger R.
name: Wang, Yinong
name: Yao, Jianhua
name: Lu, Le
name: Burns, Joseph E.
name: Summers, Ronald M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Injuries of the spine, and its posterior elements in particular, are a common occurrence in trauma patients, with potentially devastating consequences. Computer-aided detection (CADe) could assist in the detection and classification of spine fractures. Furthermore, CAD could help assess the stability and chronicity of fractures, as well as facilitate research into optimization of treatment paradigms. In this work, we apply deep convolutional networks (ConvNets) for the automated detection of posterior element fractures of the spine. First, the vertebra bodies of the spine with its posterior elements are segmented in spine CT using multi-atlas label fusion. Then, edge maps of the posterior elements are computed. These edge maps serve as candidate regions for predicting a set of probabilities for fractures along the image edges using ConvNets in a 2.5D fashion (three orthogonal patches in axial, coronal and sagittal planes). We explore three different methods for training the ConvNet using 2.5D patches along the edge maps of 'positive', i.e. fractured posterior-elements and 'negative', i.e. non-fractured elements. An experienced radiologist retrospectively marked the location of 55 displaced posterior-element fractures in 18 trauma patients. We randomly split the data into training and testing cases. In testing, we achieve an area-under-the-curve of 0.857. This corresponds to 71% or 81% sensitivities at 5 or 10 false-positives per patient, respectively. Analysis of our set of trauma patients demonstrates the feasibility of detecting posterior-element fractures in spine CT images using computer vision techniques such as deep convolutional networks.
description: To be presented at SPIE Medical Imaging, 2016, San Diego
Domain Topology and Domain Switching Kinetics in a Hybrid Improper Ferroelectric
Creators: name: Huang, F. -T.
name: Xue, F.
name: Gao, B.
name: Wang, L. H.
name: Luo, X.
name: Cai, W.
name: Lu, X.
name: Rondinelli, J. M.
name: Chen, L. Q.
name: Cheong, S. -W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Charged polar interfaces such as charged ferroelectric domain walls or heterostructured interfaces of ZnO/(Zn,Mg)O and LaAlO3/SrTiO3, across which the normal component of electric polarization changes suddenly, can host large two-dimensional conduction. Charged ferroelectric walls, which are energetically unfavorable in general, were found to be mysteriously abundant in hybrid improper ferroelectric (Ca,Sr)3Ti2O7 crystals. From the exploration of antiphase boundaries in bilayer-perovskites, we discover that each of four polarization-direction states is degenerated with two antiphase domains, and these eight structural variants form a Z4xZ2 domain structure with Z3 vortices and five distinct types of domain walls, whose topology is directly relevant to the presence of abundant charged walls. We also discover a zipper-like nature of antiphase boundaries; they are the reversible creation/annihilation centers of pairs of two types of ferroelectric walls (and also Z3-vortex pairs) in 90 and 180 degree polarization switching. Our results demonstrate the unexpectedly rich nature of hybrid improper ferroelectricity.
Minimally complex ion traps as modules for quantum communication and computing
Creators: name: Nigmatullin, Ramil
name: Ballance, Christopher J.
name: de Beaudrap, Niel
name: Benjamin, Simon C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Optically linked ion traps are promising as components of network-based quantum technologies, including communication systems and modular computers. Experimental results achieved to date indicate that the fidelity of operations within each ion trap module will be far higher than the fidelity of operations involving the links; fortunately internal storage and processing can effectively upgrade the links through the process of purification. Here we perform the most detailed analysis to date on this purification task, using a protocol which is balanced to maximise fidelity while minimising the device complexity and the time cost of the process. Moreover we 'compile down' the quantum circuit to device-level operations including cooling and shutting events. We find that a linear trap with only five ions (two of one species, three of another) can support our protocol while incorporating desirable features such as 'global control', i.e. laser control pulses need only target an entire zone rather than differentiating one ion from its neighbour. To evaluate the capabilities of such a module we consider its use both as a universal communications node for quantum key distribution, and as the basic repeating unit of a quantum computer. For the latter case we evaluate the threshold for fault tolerant quantum computing using the surface code, finding acceptable fidelities for the 'raw' entangling link as low as 83% (or under 75% if an additional ion is available).
description: 15 pages, 8 figures
July 29 Friday.
Creators: name: Graves, Robert, 1895-1985
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: subject: Graves, Robert, 1895-1985
valueUri: http://id.worldcat.org/fast/31293
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945

description: Page from Robert Graves diary manuscript. The diary includes 1,546 pages with 117 enclosures: letters, clippings, photographs post cards, notes, games.
Additional file 7 of Human dyskerin binds to cytoplasmic H/ACA-box-containing transcripts affecting nuclear hormone receptor dependence
Creators: name: Zacchini, Federico
name: Venturi, Giulia
name: De Sanctis, Veronica
name: Bertorelli, Roberto
name: Ceccarelli, Claudio
name: Santini, Donatella
name: Taffurelli, Mario
name: Penzo, Marianna
name: Treré, Davide
name: Inga, Alberto
name: Dassi, Erik
name: Montanaro, Lorenzo
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: Computational Biology

description: Additional file 7. Uncropped Western Blot images.
Monitoreo de los perfiles de playa y evaluación de la tasa de transporte de sedimento sector Bocana-Ciénaga de la Virgen-Boquilla
Creators: name: Castellar Arrieta, Romulo
name: Gomez Rodriguez, Jaime
Publisher: name: Universidad de Cartagena
Year: 2004
Subjects: Ingeniería hidráulica
Ingeniería ambiental - Técnicas
Control de sedimentos - Cartagena
Transporte de sedimentos - Cartagena

description: Tesis (Ingeniero Civil). -- Universidad de Cartagena. Facultad de Ciencias E Ingeniería. Programa Ingeniería Civil, 2004.
description: El presente estudio tiene por objeto realizar un seguimiento de los perfiles de playa y evaluación de la tasa de transporte de sedimento en el sector Bocana-Ciénaga de la Virgen-Boquilla.
Testing the effectiveness of the Developing Inclusive Youth program: A multisite randomized control trial
Creators: name: Killen, Melanie
name: Burkholder, Amanda R.
name: D'Esterre, Alexander P.
name: Sims, Riley N.
name: Glidden, Jacquelyn
name: Yee, Kathryn M.
name: Luken Raz, Katherine V.
name: Elenbaas, Laura
name: Rizzo, Michael T.
name: Woodward, Bonnie
name: Samuelson, Arvid
name: Sweet, Tracy M.
name: Stapleton, Laura M. Killen, M., Burkholder, A. R., D’Esterre, A. P., Sims, R. N., Glidden, J., Yee, K. M., Luken Raz, K. V., Elenbaas, L., Rizzo, M. T., Woodward, B., Samuelson, A., Sweet, T. M., Stapleton, L. M. (2022). Testing The Effectiveness Of The Developing Inclusive Youth Program: A Multisite Randomized Control Trial. Child Development, 93, 732–750.
Publisher: name: Wiley
Year: 2022

description: The Developing Inclusive Youth program is a classroom-based, individually administered video tool that depicts peer-based social and racial exclusion, combined with teacher-led discussions. A multisite randomized control trial was implemented with 983 participants (502 females; 58.5% White, 41.5% Ethnic/racial minority; Mage = 9.64 years) in 48 third-, fourth-, and fifth-grade classrooms across six schools. Children in the program were more likely to view interracial and same-race peer exclusion as wrong, associate positive traits with peers of different racial, ethnic, and gender backgrounds, and report play with peers from diverse backgrounds than were children in the control group. Many approaches are necessary to achieve antiracism in schools. This intervention is one component of this goal for developmental science.
Probing Theories of Gravity with Phase Space-Inferred Potentials of Galaxy Clusters
Creators: name: Stark, Alejo
name: Miller, Christopher J.
name: Kern, Nicholas
name: Gifford, Daniel
name: Zhao, Gong-Bo
name: Li, Baojiu
name: Koyama, Kazuya
name: Nichol, Robert C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Modified theories of gravity provide us with a unique opportunity to generate innovative tests of gravity. In Chameleon f(R) gravity, the gravitational potential differs from the weak-field limit of general relativity (GR) in a mass dependent way. We develop a probe of gravity which compares high mass clusters, where Chameleon effects are weak, to low mass clusters, where the effects can be strong. We utilize the escape velocity edges in the radius/velocity phase space to infer the gravitational potential profiles on scales of 0.3-1 virial radii. We show that the escape edges of low mass clusters are enhanced compared to GR, where the magnitude of the difference depends on the background field value |fR0|. We validate our probe using N-body simulations and simulated light cone galaxy data. For a DESI (Dark Energy Spectroscopic Instrument) Bright Galaxy Sample, including observational systematics, projection effects, and cosmic variance, our test can differentiate between GR and Chameleon f(R) gravity models, |fR0| = 4e-6 (2e-6) at > 5σ (> 2σ), more than an order of magnitude better than current cluster-scale constraints.
description: 9 pages, 4 figures, accepted to PRD
Additional file 8 of Human dyskerin binds to cytoplasmic H/ACA-box-containing transcripts affecting nuclear hormone receptor dependence
Creators: name: Zacchini, Federico
name: Venturi, Giulia
name: De Sanctis, Veronica
name: Bertorelli, Roberto
name: Ceccarelli, Claudio
name: Santini, Donatella
name: Taffurelli, Mario
name: Penzo, Marianna
name: Treré, Davide
name: Inga, Alberto
name: Dassi, Erik
name: Montanaro, Lorenzo
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: Computational Biology

description: Additional file 8. Review history.
The neural distribution of the avian homologue of oxytocin, mesotocin, in two songbird species, the zebra finch and the canary: A potential role in song perception and production
Creators: name: Haakenson, Chelsea M.
name: Balthazart, Jacques
name: Madison, Farrah N.
name: Ball, Gregory F.
Publisher: name: Wiley
Year: 2022
Subjects: neuroanatomy
nonapeptide
social behavior
songbird

description: The avian homologue of oxytocin (OT), formerly called mesotocin, influences social behaviors in songbirds and potentially song production. We sought to characterize the distribution of OT peptide in the brain of two songbird species: canaries (Serinus canaria) and zebra finches (Taeniopygia guttata). To visualize OT, we performed immunocytochemistry using an antibody previously shown to identify OT in avian species. In both canaries and zebra finches, dense OT-ir perikarya were located in the paraventricular nucleus (PVN), preoptic area (POA), supraoptic nucleus (SON), and medial bed nucleus of the stria terminalis (BNSTm). We also observed morphologically distinct OT-ir cells scattered throughout the mesopallium. OT-ir fibers were observed in the PVN, ventral medial hypothalamus (VMH), periaqueductal gray (PAG), intercollicular nucleus (ICo), and ventral tegmental area (VTA). We also observed punctate OT-ir fibers in the song control nucleus HVC. In both male and female canaries, OT-ir fibers were present in the lateral septum (LS), but innervation was greater in males. We did not observe this sex difference in zebra finches. Much of the OT staining observed is consistent with general distributions within the vertebrate hypothalamus, indicating a possible conserved function. However, some extra-hypothalamic distributions, such as perikarya in the mesopallium, may be specific to songbirds and play a role in song perception and production. The presence of OT-ir fibers in HVC and song control nuclei projecting dopaminergic regions provides anatomical evidence in support of the idea that OT can influence singing behavior—either directly via HVC or indirectly via the PAG, VTA, or POA.
July 30 Saturday
Creators: name: Graves, Robert, 1895-1985
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: subject: Graves, Robert, 1895-1985
valueUri: http://id.worldcat.org/fast/31293
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945

description: Page from Robert Graves diary manuscript. The diary includes 1,546 pages with 117 enclosures: letters, clippings, photographs post cards, notes, games.
July 31 Sunday.
Creators: name: Graves, Robert, 1895-1985
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: subject: Graves, Robert, 1895-1985
valueUri: http://id.worldcat.org/fast/31293
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945

description: Page from Robert Graves diary manuscript. The diary includes 1,546 pages with 117 enclosures: letters, clippings, photographs post cards, notes, games.
Compact and scalable polarimetric self-coherent receiver using dielectric metasurface
Creators: name: Soma, Go
name: Nomoto, Yoshiro
name: Umezawa, Toshimasa
name: Yoshida, Yuki
name: Nakano, Yoshiaki
name: Tanemura, Takuo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The polarimetric self-coherent system using a direct-detection-based Stokes-vector receiver (SVR) is a promising technology to meet both the cost and capacity requirements of the short-reach optical interconnects. However, conventional SVRs require a number of optical components to detect the state of polarization at high speed, resulting in substantially more complicated receiver configurations compared with the current intensity-modulation-direct-detection (IMDD) counterparts. Here, we demonstrate a simple and compact polarimetric self-coherent receiver based on a thin dielectric metasurface and a photodetector array (PDA). With a single 1.05-$μ$m-thick metasurface device fabricated on a compact silicon-on-quartz chip, we implement functionalities of all the necessary passive components: a 1$\times$3 splitter, three polarization beam splitters with different polarization bases, and six focusing lenses. Combined with a high-speed PDA, we demonstrate self-coherent transmission of 20-GBd 16-ary quadrature amplitude modulation (16QAM) and 50-GBd quadrature phase-shift keying (QPSK) signals over a 25-km single-mode fiber. Owing to the surface-normal configuration, it can easily be scaled to receive spatially multiplexed channels from a multicore fiber or a fiber bundle, enabling compact and low-cost receiver modules for the future highly parallelized self-coherent systems.
description: 10 pages, 6 figures (main manuscript) + 2 pages, 2 figures (supplementary info)
Experiencia de ansiedad, desde el enfoque de bienestar, en mujeres víctimas de violencia sexual en situación de desplazamiento en la ciudad de Cartagena
Creators: name: Banquéz Banquéz, Marcela Cecilia
name: Bonfante Villa, Darlys Margarita
Publisher: name: Universidad de Cartagena
Year: 2019
Subjects: Violencia conyugal
Violencia familiar

description: Tesis (Magíster en Conflicto Social y Construcción de Paz) – Universidad de Cartagena. Facultad de Ciencias Sociales y Educación. Maestría en Conflicto Social y Construcción de Paz, 2019
description: La investigación permitió describir la Experiencia de ansiedad, desde el enfoque de bienestar, en 18 mujeres víctimas de violencia sexual en la ciudad de Cartagena, pertenecientes a la Corporación Mujer sigue mis Pasos” que han estado en situación de desplazamiento. Para determinar la ansiedad se utilizó la escala de Zung y para la evaluación de las variables de Bienestar fueron utilizadas la escala de Bienestar Psicológico de Ryff, la escala de Bienestar subjetivo de Diener y la escala de Bienestar social de Keyes. Se discutieron las características de las vivencias propias del desplazamiento forzado, los estudios previos en relación con la valoración del impacto de las vivencias estresantes que generaron síntomas ansiosos que perpetúan en la actualidad y la necesidad de identificar la correlación existente entre las variables en relación con el impacto psicológico de la violencia presente en esta población. Los resultados obtenidos demuestran que las mujeres que han sido víctimas de desplazamiento y violencia sexual presentan síntomas ansiosos, relacionados a situaciones psicosociales y de salud mental. Se resaltan que en estas mujeres existen niveles considerados de bienestar influidos por las circunstancias y vivencias de adaptación frente a su nueva realidad, que incluye cambio de roles y rutinas, pocas oportunidades y desventajas socioeconómicas, las cuales les toca enfrentar llegando a tornarse difíciles de afrontar. Los resultados permitieron establecer correlaciones entre bienestar psicológico y síntomas cognoscitivos (Ansiedad) y se identificaron síntomas ansiosos y afectaciones en los distintos enfoques de bienestar, especialmente en el del bienestar psicológico. Se recomienda continuar realizando talleres de fortalecimiento personal e intervención individual, para aportar herramientas que permitan trabajar la ansiedad desde el enfoque de bienestar en poblaciones desplazadas.
HTR model for transcribing Glagolitic sources printed in the 16th century Tübingen-Urach printing style into the Latin script
Creators: name: Rabus, Achim
name: Thompson, Walker Riggs
name: Stökl ben Ezra, Daniel
Publisher: name: Zenodo
Year: 2023
Subjects: Glagolitic
Slavic
Latin script

description: This model is the result of a collaboration between the University Library Tübingen and the Slavic Department Freiburg. Selections from several early printed Glagolitic sources (16th century) from the Tübingen Urach collection were used as GT. It can be used to transcribe sources printed in the 16th century Tübingen-Urach printing style into the Latin script. The original training set was prepared in Transkribus, whence it was exported and re-used to train this model. It is possible that the export caused some distortions of baselines or line masks, or corruptions in the data, which may have inflated CER (despite manual cleansing prior to Kraken training).
Effect of periodic potential on exciton states in semiconductor carbon nanotubes
Creators: name: Roslyak, Oleksiy
name: Piryatinski, Andrei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We develop a theoretical background to treat exciton states of semiconductor single-walled carbon nanotubes (SWCNTs) in presence of a periodic potential induced by the surface acoustic wave (SAW) propagating along semiconducting SWCNT. The formalism naturally accounts for the electronic bands splitting into the Floquet sub-bands brought about by the Bragg scattering on the SAW potential. Optically induced transitions within the Floquet states and formation of correlated electron-hole pairs, i.e., exciton states, are examined numerically. We discuss dynamical formation of new van Hove singularities within electron-hole continuum and associated reduction of the exciton oscillator strengths and its effect on the photoluminescence quenching in presence of the SAW. We argue that SAW induced dynamical gaps in the single particle dispersion leads to redistribution of the oscillator strength from excitons to the Floquet edge states. The simulations also confirm exciton energy Stark red shift as well as reduction in the binding energy. Comparison of our results with previous theoretical and experimental studies is provided.
description: 9 pages, 3 figures
Lower-Hybrid Wave Structures and Interactions With Electrons Observed in Magnetotail Reconnection Diffusion Regions
Creators: name: Wang, Shan
name: Chen, Li-Jen
name: Bessho, Naoki
name: Ng, Jonathan
name: Hesse, Michael
name: Graham, Daniel B.
name: Le Contel, Olivia
name: Gershman, Daniel
name: Giles, Barbara
Publisher: name: Wiley
Year: 2022

description: We investigate waves close to the lower-hybrid frequency in 12 magnetotail reconnection electron diffusion region (EDR) events with guide field levels of near-zero to 30%. In about half of the events, the wave vector has a small component along the current sheet normal, consistent with known lower-hybrid drift wave properties, but the perpendicular magnetic field fluctuations can be comparable or greater than the parallel component, a feature unique to the waves inside and adjacent to EDRs. Another new wave property is that the wave vector has a significant component along the current sheet normal in some events and completely along the normal for one event. In 1/4 of the events, the 𝐴𝐴∇⋅𝑷𝑷𝑒𝑒 term has a significant contribution to the wave electric field, possibly a feature of lower-hybrid waves more likely to exist in the diffusion region than further away from the X-line. Electron temperature variations are correlated with the wave potential, due to wave electric field acceleration and crossings at the corrugated separatrix region with different amounts of mixing between reconnection inflowing and outflowing populations. The latter also leads to the anti-correlation between parallel and perpendicular temperature components. Using four-spacecraft measurements, the magnetic field line twisting is demonstrated by the correlated fluctuations in 𝐴𝐴(∇×𝑽𝑽𝐸𝐸×𝐵𝐵)|| and 𝐴𝐴(∇×𝐁𝐁)||. The lower-hybrid wave in the EDR of weak guide field reconnection may be generated near separatrices and penetrate to the mid-plane or locally generated, and the latter possibility is beyond the prediction of previous reconnection simulations.
Enclosure – £1 from Honor Wyatt
Creators: name: Graves, Robert, 1895-1985
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: subject: Graves, Robert, 1895-1985
valueUri: http://id.worldcat.org/fast/31293
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945

description: Page from Robert Graves diary manuscript. The diary includes 1,546 pages with 117 enclosures: letters, clippings, photographs post cards, notes, games.
Influencia del derecho en iniciativas de integración financiera: El caso del Mercado Integrado Latinoamericano
Creators: name: Ordosgoitia Maza, Ricardo Andrés
Publisher: name: Universidad de Cartagena
Year: 2021
Subjects: América latina - Integración económica
Mercado de capitales
Regulación del comercio

description: Tesis (Abogado) -- Facultad de Derecho y Ciencias Políticas. Programa de Derecho, 2021
description: El presente trabajo, pretende examinar desde una metodología cualitativa, el marco jurídico que reviste al Mercado Integrado Latinoamericano (MILA) e identificar la influencia que dicho marco ejerce en el desarrollo de la iniciativa integradora. Para esto, propone un análisis híbrido del mercado, desde dos perspectivas interconectadas: La jurídica y la económica. En su desarrollo, esta investigación describe los motivos que respaldan el surgimiento de iniciativas de integración financiera y analiza las consecuencias (jurídicas y económicas) derivadas de estos procesos. Seguidamente, realiza un balance de eficiencia del MILA, determinando su impacto en el desarrollo y crecimiento económico regional. Por ultimo, estudia jurídicamente la conformación, estructura y operatividad del mercado integrado e identifica los desafíos regulatorios actuales que enfrenta la iniciativa de integración.
Improving practical sensitivity of energy optimized wake-up receivers: proof of concept in 65nm CMOS
Creators: name: Mazloum, Nafiseh Seyed
name: Rodrigues, Joachim Neves
name: Andersson, Oskar
name: Nejdel, Anders
name: Edfors, Ove
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We present a high performance low-power digital base-band architecture, specially designed for an energy optimized duty-cycled wake-up receiver scheme. Based on a careful wake-up beacon design, a structured wake-up beacon detection technique leads to an architecture that compensates for the implementation loss of a low-power wake-up receiver front-end at low energy and area costs. Design parameters are selected by energy optimization and the architecture is easily scalable to support various network sizes. Fabricated in 65nm CMOS, the digital base-band consumes 0.9uW (V_DD=0.37V) in sub-threshold operation at 250kbps, with appropriate 97% wake-up beacon detection and 0.04% false alarm probabilities. The circuit is fully functional at a minimum V_DD of 0.23V at f_max=5kHz and 0.018uW power consumption. Based on these results we show that our digital base-band can be used as a companion to compensate for front-end implementation losses resulting from the limited wake-up receiver power budget at a negligible cost. This implies an improvement of the practical sensitivity of the wake-up receiver, compared to what is traditionally reported.
description: Submitted to IEEE Sensors Journal
Low-Mass Active Galactic Nuclei with Rapid X-Ray Variability
Creators: name: Ho, Luis
name: Kim, Minjin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a detailed study of the optical spectroscopic properties of 12 active galactic nuclei (AGNs) with candidate low-mass black holes (BHs) selected by Kamizasa et al. through rapid X-ray variability. The high-quality, echellette Magellan spectra reveal broad H$α$ emission in all the sources, allowing us to estimate robust viral BH masses and Eddington ratios for this unique sample. We confirm that the sample contains low-mass BHs accreting at high rates: the median $M_{\rm BH} = 1.2\times 10^6M_\odot$ and median $L_{\rm bol}/L_{\rm Edd}=0.44$. The sample follows the $M_{\rm BH}-σ_*$ relation, within the considerable scatter typical of pseudobulges, the probable hosts of these low-mass AGNs. Various lines of evidence suggest that ongoing star formation is prevalent in these systems. We propose a new strategy to estimate star formation rates in AGNs hosted by low-mass, low-metallicity galaxies, based on modification of an existing method using the strength of [O II] $λ3727$, [O III] $λ5007$, and X-rays.
description: To appear in ApJ
Immunofluorescence-Mediated Detection of Respiratory Virus Infections in Human Airway Epithelial Cultures
Creators: name: Gagliardi, Talita B.
name: Iverson, Ethan
name: DeGrace, Emma J.
name: Rosenberg, Brad R.
name: Scull, Margaret A.
Publisher: name: Wiley
Year: 2022
Subjects: airway epithelium
immunofluorescence
microscopy
respiratory virus

description: A diverse collection of viral pathogens target airway epithelial cells for infection, with effects ranging from mild upper respiratory tract symptoms to death of the infected individual. Among these pathogens are recently discovered and/or emergent viruses that sometimes fail to infect commonly used, immortalized cell lines and for which infection phenotypes in the respiratory tract remain unknown. Human airway epithelial cultures have been developed over the past several decades and have proven to be a useful model system in culturing hard-to-grow viruses and assaying various features of infection in a physiologically relevant setting. This article includes methods for the generation of well-differentiated human airway epithelial cell cultures at air-liquid interface that recapitulate the mucosal epithelium of the trachea/bronchus in vivo. We further detail inoculation of these cultures with respiratory viruses—specifically rhinovirus, influenza virus, and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)—and provide a protocol for the detection of double-stranded RNA or viral antigen–positive cells by immunofluorescence microscopy. These techniques, together with a post-imaging analysis, can be applied to characterize the efficiency of infection and kinetics of spread within the airway epithelium. Furthermore, these methods can be utilized in conjunction with antibodies against cellular targets to determine cell tropism and colocalization with specific host factors during infection.
Theory of third harmonic generation in graphene: a diagrammatic approach
Creators: name: Rostami, Habib
name: Polini, Marco
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a finite-temperature diagrammatic perturbation theory of third harmonic generation (THG) in doped graphene. We carry out calculations of the third-order conductivity in the scalar potential gauge, highlighting a subtle cancellation between a Fermi surface contribution, which contains only power laws, and power-law contributions of inter-band nature. Only logarithms survive in the final result. We conclude by presenting quantitative results for the up-conversion efficiency at zero and finite temperature. Our results shed light on the on-going dispute over the dependence of THG on carrier concentration in graphene.
description: 6 pages, 2 figures
Log Entries of Letters for July, 1938 Letters
Creators: name: Graves, Robert, 1895-1985
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: subject: Graves, Robert, 1895-1985
valueUri: http://id.worldcat.org/fast/31293
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945

description: Page from Robert Graves diary manuscript. The diary includes 1,546 pages with 117 enclosures: letters, clippings, photographs post cards, notes, games.
Splitting of doubly quantized vortices in holographic superfluid of finite temperature
Creators: name: Lan, Shanquan
name: Li, Xin
name: Mo, Jiexiong
name: Tian, Yu
name: Yan, Yu-Kun
name: Yang, Peng
name: Zhang, Hongbao
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The temperature effect on the linear instability and the splitting process of a doubly quantized vortex is studied. Using the linear perturbation theory to calculate out the quasi-normal modes of the doubly quantized vortex, we find that the imaginary part of the unstable mode increases with the temperature till some turning temperature, after which the imaginary part of the unstable mode decreases with the temperature. On the other hand, by the fully non-linear numerical simulations, we also examine the real time splitting process of the doubly quantized vortex, where not only do the split singly quantized vortex pair depart from each other, but also revolve around each other. In particular, the characteristic time scale for the splitting process is identified and its temperature dependence is found to be in good agreement with the linear instability analysis in the sense that the larger the imaginary part of the unstable mode is, the longer the splitting time is. Such a temperature effect is expected to be verified in the cold atom experiments in the near future.
description: 21 pages, 9 figures, references added, clarifications made, typos corrected, version to appear in JHEP
Plastic deformation of tubular crystals by dislocation glide
Creators: name: Beller, Daniel A.
name: Nelson, David R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Tubular crystals, two-dimensional lattices wrapped into cylindrical topologies, arise in many contexts, including botany and biofilaments, and in physical systems such as carbon nanotubes. The geometrical principles of botanical phyllotaxis, describing the spiral packings on cylinders commonly found in nature, have found application in all these systems. Several recent studies have examined defects in tubular crystals associated with crystalline packings that must accommodate a fixed tube radius. Here, we study the mechanics of tubular crystals with variable tube radius, with dislocations interposed between regions of different phyllotactic packings. Unbinding and separation of dislocation pairs with equal and opposite Burgers vectors allow the growth of one phyllotactic domain at the expense of another. In particular, glide separation of dislocations offers a low-energy mode for plastic deformations of solid tubes in response to external stresses, reconfiguring the lattice step by step. Through theory and simulation, we examine how the tube's radius and helicity affects, and is in turn altered by, the mechanics of dislocation glide. We also discuss how a sufficiently strong bending rigidity can alter or arrest the deformations of tubes with small radii.
description: 17 pages, 11 figures
Additional file 1 of Identifying and handling unbalanced baseline characteristics in a non-randomized, controlled, multicenter social care nurse intervention study for patients in advanced stages of cancer
Creators: name: Frick, Johann
name: Gebert, Pimrapat
name: Grittner, Ulrike
name: Letsch, Anne
name: Schindel, Daniel
name: Schenk, Liane
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 1. Included ICD-10- and OPS-codes.
MPEC 2024-R33 : 2024 RP
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 RP

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Aug 1st Monday.
Creators: name: Graves, Robert, 1895-1985
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: subject: Graves, Robert, 1895-1985
valueUri: http://id.worldcat.org/fast/31293
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945

description: Page from Robert Graves diary manuscript. The diary includes 1,546 pages with 117 enclosures: letters, clippings, photographs post cards, notes, games.
Bases para un plan de desarrollo del distrito No. 2 del Departamento de Bolívar
Creators: name: Marrugo Jimenez, Edilberto
name: Mendoza Lara, Luis Fernando
Publisher: name: Universidad de Cartagena
Year: 1991
Subjects: Desarrollo económico
Regionalización

description: Tesis(Economista).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Economía, 1991
description: El presente estudio tiene por objeto dejar sentadas las bases socio-económicas para un plan de desarrollo del distrito # 2 del Departamento de Bolivar, que logre el crecimiento y desarrollo armónico de los sectores, utilizando como herramienta la descentralizacion administrativa, política y fiscal.