Fast flux control of 3D transmon qubits using a magnetic hose

Fast magnetic flux control is a crucial ingredient for circuit quantum electrodynamics (cQED) systems. So far it has been a challenge to implement this technology with the high coherence 3D cQED architecture. In this paper we control the magnetic field inside a superconducting waveguide cavity using a magnetic hose, which allows fast flux control of 3D transmon qubits on time scales < 100 ns. The hose is designed as an effective microwave filter to not compromise the energy relaxation time of the qubit. The magnetic hose is a promising tool for fast magnetic flux control in various platforms intended for quantum information processing and quantum optics.Comment: 9 pages, 7 figures, including supplementary materia

Suelos volcanicos endurecidos

The degree of fragmentation and irregularity of tepetate areas can be measured with fractal parameters. A lot of different empirical fractal dimensions can be used with this purposed. Some of these dimensions were estimated and compared in the present work. The tepetates lineal and mass fractal dimensions were independent of the scale of measurement. These data indicate the near ideal fractal dimensionality of tepetate areas. The doble value of lineal fractal dimension was similar to the mass fractal dimension. The tepetate surface fractal dimensions indicate the considerable irregularities of tepetate areas boundaries related with advanced erosion in the studied area. (Résumé d'auteur

Application of p-adic analysis to time series

Time series defined by a p-adic pseudo-differential equation is investigated using the expansion of the time series over p-adic wavelets. Quadratic correlation function is computed. This correlation function shows a degree--like behavior and is locally constant for some time periods. It is natural to apply this kind of models for the investigation of avalanche processes and punctuated equilibrium as well as fractal-like analysis of time series generated by measurement of pressure in oil wells.Comment: 18 page

Closed Contour Fractal Dimension Estimation by the Fourier Transform

This work proposes a novel technique for the numerical calculus of the fractal dimension of fractal objects which can be represented as a closed contour. The proposed method maps the fractal contour onto a complex signal and calculates its fractal dimension using the Fourier transform. The Fourier power spectrum is obtained and an exponential relation is verified between the power and the frequency. From the parameter (exponent) of the relation, it is obtained the fractal dimension. The method is compared to other classical fractal dimension estimation methods in the literature, e. g., Bouligand-Minkowski, box-couting and classical Fourier. The comparison is achieved by the calculus of the fractal dimension of fractal contours whose dimensions are well-known analytically. The results showed the high precision and robustness of the proposed technique

Topological invariance and spatial scaling of surface roughness in two highly eroded zones of Mexico: a comparative study

The Fractal Image Informatics toolbox (Oleschko et al., 2008 a; Torres-Argüelles et al., 2010) was applied to extract, classify and model the topological structure and dynamics of surface roughness in two highly eroded catchments of Mexico. Both areas are affected by gully erosion (Sidorchuk, 2005) and characterized by avalanche-like matter transport. Five contrasting morphological patterns were distinguished across the slope of the bare eroded surface of Faeozem (Queretaro State) while only one (apparently independent on the slope) roughness pattern was documented for Andosol (Michoacan State). We called these patterns ?the roughness clusters? and compared them in terms of metrizability, continuity, compactness, topological connectedness (global and local) and invariance, separability, and degree of ramification (Weyl, 1937). All mentioned topological measurands were correlated with the variance, skewness and kurtosis of the gray-level distribution of digital images. The morphology0 spatial dynamics of roughness clusters was measured and mapped with high precision in terms of fractal descriptors. The Hurst exponent was especially suitable to distinguish between the structure of ?turtle shell? and ?ramification? patterns (sediment producing zone A of the slope); as well as ?honeycomb? (sediment transport zone B) and ?dinosaur steps? and ?corals? (sediment deposition zone C) roughness clusters. Some other structural attributes of studied patterns were also statistically different and correlated with the variance, skewness and kurtosis of gray distribution of multiscale digital images. The scale invariance of classified roughness patterns was documented inside the range of five image resolutions. We conjectured that the geometrization of erosion patterns in terms of roughness clustering might benefit the most semi-quantitative models developed for erosion and sediment yield assessments (de Vente and Poesen, 2005)

Fractal Metrology for biogeosystems analysis

The solid-pore distribution pattern plays an important role in soil functioning being related with the main physical, chemical and biological multiscale and multitemporal processes of this complex system. In the present research, we studied the aggregation process as self-organizing and operating near a critical point. The structural pattern is extracted from the digital images of three soils (&lt;i&gt;Chernozem, Solonetz&lt;/i&gt; and &lt;i&gt;&quot;Chocolate&quot; Clay&lt;/i&gt;) and compared in terms of roughness of the gray-intensity distribution quantified by several measurement techniques. Special attention was paid to the uncertainty of each of them measured in terms of standard deviation. Some of the applied methods are known as classical in the fractal context (box-counting, rescaling-range and wavelets analyses, etc.) while the others have been recently developed by our Group. The combination of these techniques, coming from Fractal Geometry, Metrology, Informatics, Probability Theory and Statistics is termed in this paper &lt;i&gt;Fractal Metrology&lt;/i&gt; (FM). We show the usefulness of FM for complex systems analysis through a case study of the soil&apos;s physical and chemical degradation applying the selected toolbox to describe and compare the structural attributes of three porous media with contrasting structure but similar clay mineralogy dominated by montmorillonites

Meningite asséptica na campanha de vacinação pública tríplice viral (590.609 indivíduos) em Curitiba, Paraná, Brasil, 1998

The aseptic meningitis after Measles-Mumps-Rubella vaccine (MMR) is a well recognized complication, and different incidences have been observed in several studies. We retrospectively analyzed forty cases of aseptic meningitis, during a large public immunization campaign (1998) in Curitiba, Southern Brazil (590,609 people), admitted in our Service. The vaccine utilized was Leningrad-3-Zagreb mumps strain, Edmonston-Zagreb measles strain, and RA 27#3 rubella strain. In all county, a total number of 87 cases were reported, resulting in a incidence of 1.7 cases per 10,000 given doses . The mean age was 23.7 ± 12.8 years. The female:male ratio was 1.35:1. Severe headache with meningismus (92.5%), fever (87.5%), nausea/vomiting (82.5%) were the most common clinical findings. Three cases (7.5%) developed mild mumps. All patients underwent cerebrospinal fluid (CSF) tap with the following findings: mononuclear pleocytosis from 100 to 500 cells/mm³ in 17 cases (42.5%; 257.5 ± 260.6 cells/mm³); increased protein 28 cases (67.5%; 92.1 ± 76.9 mg/dL); glucose was normal in all cases (56.8 ± 11.2 mg/dL) except in 4 (10%) cases, which presented less than 44 mg/dL. All serological tests (latex to bacterial meningitis, Cryptococcus, cysticercosis, VDRL) and bacteriological cultures were negative. Virus identification were also negative in 8 samples. None of the patients had neurological deficits or related symptoms after one year of onset. We believe the benefit of vaccination clearly outweights the incidence of benign vaccine-associated meningitis.A incidência de meningite asséptica após vacina tríplice viral (MMR) é diferente em diversos estudos. Analisamos retrospectivamente quarenta casos de meningite asséptica, relacionados a uma campanha de vacinação pública para cobertura tríplice viral em Curitiba, PR, Brasil, ano de 1998. A vacina utilizada foi a Leningrado-3-Zagreb para caxumba, Edmonston-Zagreb para sarampo e RA27#3 para rubéola. Um total de 87 casos foram relatados, resultando em uma incidência de 1,7 casos por 10.000 doses. A idade média dos pacientes foi 23,7 ± 12,8 anos. A relação feminino/masculino foi 1,35:1. Cefaléia intensa com sinais meningorradiculares (92,5%), febre (87,5%), náuseas e vômitos (82,5%) foram os achados clínicos mais comuns. Três casos (7,5%) desenvolveram caxumba branda. Todos os pacientes foram submetidos a punção lombar para obtenção de líquor, com os seguintes achados: pleocitose mononuclear de 100 a 500 células em 17 casos (42,4%; 257 ± 260,6 células/mm³); proteínas aumentadas em 28 casos (67,5%; 92,1 ± 76,9 mg/dL) e glicose (56,8 ± 11,2 mg/dL). Os testes sorológicos (látex para meningites, Cryptococcus, cisticercose, sífilis) e culturas bacteriológicas foram negativas. Identificação viral também foi negativa em 8 casos. Nenhum dos pacientes desenvolveu déficits neurológicos ou sintomas relacionados após um ano do início do quadro. Acreditamos que o benefício da vacinação claramente supera os eventuais efeitos da meningite asséptica após vacinação MMR devido ao seu caráter e evolução benignos

„‘ne gewisse Portion an Reflektiertheit“: Wie nehmen Lehrer*innen ihre eigenen Entwicklungsprozesse im Kontext einer sprachsensiblen Unterrichts- und Schulentwicklung wahr?

Der Beitrag untersucht anhand von fünf narrativen Interviews wie Lehrkräfte mit verschiedenen organisationalen Positionen an verschiedenen Schulen ihre aktuellen Unterrichts- und Schulentwicklungsvorhaben zu Sprachbildung wahrnehmen. Vor allem die Bedeutung der Beziehungsgestaltung, Haltung, Kommunikation, Sprache und Schulkultur stellen zentrale Einheiten dar, die eine große Bedeutung für die Lehrer*innen haben. Der Zusammenhang von Sprache und Lernen entfaltet sich über die Qualität der Beziehung zur eigenen Zielgruppe und zur eigenen professionellen Rolle. Hieraus ergibt sich, dass eine Umgebung für das (bildungs-)sprachliche Lernen nur möglich werden kann, wenn auch das eigene unterrichtliche Handeln reflektiert wird. The article examines how teachers with different organizational positions at different schools perceive their current teaching and school development projects on language education on the basis of five narrative interviews. In particular, the importance of relationship building, beliefs, communication, language, and school culture represent central units that have great significance for teachers. The connection between language and learning unfolds through the quality of the relationship to one\u27s own target group and to one\u27s own professional role. It follows from this that an environment for (educational) language learning can only become possible if one\u27s own teaching actions are also reflected upon

Interdisziplinäre Betrachtung von Erklärungsansätzen zum Verhältnis von bildungssprachlichen Praktiken und sozialer Herkunft

Oleschko S. Interdisziplinäre Betrachtung von Erklärungsansätzen zum Verhältnis von bildungssprachlichen Praktiken und sozialer Herkunft. Bielefeld: Universität Bielefeld; 2020

Ataxia cerebelar hereditária autissômica dominante

Orientador - Luis F. Bleggi TorresDissertaçao (mestrado) - Universidade Federal do Paraná, Setor de Ciencias da Saúd