Naegleria fowleri is a free-living ameba that causes primary amebic meningoencephalitis (PAM), a rare but usually fatal disease. We analyzed trends in recreational water exposures associated with PAM ...cases reported during 1978-2018 in the United States. Although PAM incidence remained stable, the geographic range of exposure locations expanded northward.
The intermediate-age Magellanic Cloud clusters NGC 1978 and 419 are each found to contain substantial numbers of pulsating asymptotic giant branch (AGB) stars, both oxygen rich and carbon rich. Each ...cluster also contains two pulsating AGB stars which are infrared sources with a large mass-loss rate. Pulsation masses have been derived for the AGB variables, from the lowest luminosity O-rich variables to the most evolved infrared sources. It is found that the stars in NGC 1978 have a mass of 1.55 M⊙ early on the AGB while the NGC 419 stars have a mass of 1.87 M⊙ early on the AGB. These masses are in good agreement with those expected from the cluster ages determined by main-sequence turn-off fitting. Non-linear pulsation models fitted to the highly evolved AGB stars show that a substantial amount of mass-loss has occurred during the AGB evolution of these stars. An examination of the observed mass-loss on the AGB, and the AGB tip luminosities, shows that in both clusters the mass-loss rates computed from the formula of Vassiliadis & Wood reproduce the observations reasonably well. The mass-loss rates computed from the formula of Blöcker terminate the AGB in both clusters at a luminosity which is much too low.
A new species of the genus Suwallia Ricker, 1943, S. rostrata sp. nov., from Xizang of southwestern China is described, illustrated and compared with similar species. Alloperla kurentzovi Zhiltzova & ...Zapekina-Dulkeit, 1977, A. kurilensis Zhiltzova, 1978, A. teleckojensis mal, 1939 are reported for the first time from China. The diagnostic features of these species are illustrated with color images.
Se trata de autores que han nacido a partir de la década de los sesenta, que empiezan a publicar a partir de los noventa y que están conectados, entre otros aspectos, por el trauma social de "un ...pasado negado y doloroso" (Drucaroff 17). Como señala Ana Gallego Guiñas, ... no se trata de una generación de mujeres, sino más bien, de un núcleo de escritoras que entienden el feminismo como un proceso de construcción de la identidad; como la narración material de la complejidad de los cuerpos; como un relato plural (global) ... como la práctica de ciertos géneros menores o "masculinos" (lo fantástico en Schweblin y Enriquez, y la crónica en Almada); como el uso de un lenguaje crudo, directo y procaz, desliteraturizado; como un modo de visibilización y resistencia frente a la univocidad del discurso patriarcal. Los kentukis son peluches en forma de animal que pueden controlarse a través de un tablet desde cualquier lugar del mundo. Los kentukis dan respuesta, así, a las que parecen dos de las necesidades más acuciantes de los últimos tiempos, manifiestas en el éxito rotundo de redes sociales y aplicaciones como Facebook, Instagram, Snapchat о YouTube: la de mirar y la de ser mirado.1 Mi propósito en este trabajo es analizar el fenómeno de los kentukis a partir de conceptos como el cíborg y la teoría de lo posthumano para mostrar cómo se cuestionan en la novela las identidades fijas y las oposiciones binarias de género y de especie. Un mundo en el que nos esté permitido espiar a un desconocido y seguirlo por cada recoveco de su vulnerable cotidianidad. Una cámara con apariencia de animal de peluche. Un kentuki no sería, hablando con propiedad, ni un animal ni una cosa, sino un ser fundamentalmente híbrido; al mismo tiempo humano y máquina, él y ella, animal y humano, y sería todas estas cosas a la vez y sin contradicción porque eludiría, como los monstruos, cualquier tipo de clasificación. La teoría de lo posthumano ofrece para Braidotti la posibilidad de repensar el concepto de lo humano en un mundo en el que la tecnología se ha hecho inseparable de nosotros como especie. Sostiene así que, "f or posthuman theory, the subject is a transversal entity, fully immersed in and immanent to a network of non-human (animal, vegetable, viral) relations" (The Posthuman 193)- Además, afirma, "contemporary science and biotechnologies affect every fiber and structure of the living and have altered dramatically our understanding of what counts as the basic frame of reference for the human today" (The Posthuman 40). En su libro Cyborgs in Latin America (2010), J. Andrew Brown rastrea la aparición de robots o "humanos artificiales" en la literatura hispanoamericana hasta el siglo XIX, con la publicación de la novela Horacio Kalibang ó, Los autómatas (1879) de Eduardo Holmberg. Recent narratives from various countries in Latin America have simultaneously extended and problematized this vision of technological life, and done so with much greater frequency than we have seen in the past, with both established and new artists working through the implications of a culture increasingly impacted by new technology ... En el caso de la novela de Schweblin, que nos ocupa, el concepto de "kentuki" problematiza el funcionamiento de las sociedades contemporáneas, poniendo el foco en la compleja relación de dependencia que tenemos con las máquinas, así como en la fragilidad y los vacíos de las relaciones que establecemos con los de nuestra misma especie. Estructurada en 35 capítulos o secciones, la novela es un telar de historias paralelas cuyo denominador común es la relación entre un kentuki -o varios de ellos- y los seres humanos que los controlan o los poseen (más adelante me referiré a la diferencia entre tener un kentuki y controlarlo). Algunas de estas historias tienen continuidad de comienzo a fin a lo largo de capítulos discontinuos, pero otras tienen la duración de un capítulo individual y se insertan en el texto a modo de pequeños relatos.
Historical aerial photographs are a valuable source of data for investigating past earthquakes, volcanic activities, ice mass balance and land changes in the pre-modern era. Scan resolution for ...digitising the historical archives is an important factor in photogrammetric processes, but the effects have not been quantified yet. In this paper, we use the 1978 Ms 7.4 Tabas-e-Golshan earthquake in eastern Iran as a case study to test how scan resolution affects digitisation and hence the measurements of deformation. We scanned 6 aerial photographs that were acquired in 1956 with 150, 300, 600 and 1200 dots per inch (dpi), and generated four sets of pre-earthquake digital elevation model (DEM) covering the Tabas fold. By differencing the pre-earthquake DEMs and the post-earthquake DEM derived from SPOT-6 data acquired in 2013, we made four measurements of slip on the Tabas fold. We compared our measurements to the published model which was derived from matching the pre-earthquake Hexagon Keyhole-9 US image and the post-earthquake SPOT-2 and SPOT-6 images, and found that the 600 dpi scans yield the most consistent result among the four different resolutions, with a misfit of 0.7 m. A different resolution might well be better for a different set of aerial photographs, depending on the quality and photographic scale of the images. We scanned 20 aerial photographs that cover the Kurit fold to the south of the Tabas fold with 600 dpi and used them to investigate the slip on that segment. Similarly, DEMs were extracted first to produce the DEM of difference (DoD). Five swath profiles taken from the DoD show clear discontinuities across two fault strands, i.e. the main Kurit fault (the western strand) and a back thrust (the eastern strand). Based on the profile measurements, we implemented Monte Carlo modelling of elastic dislocation and obtained a slip of 1.4 m and 2.2 m on the western and eastern strands respectively. By combining all the information about the earthquake and postseismic slip, we inferred a coseismic slip of 3.5 m on the detachment fault by which most of the seismic moment was released. This slip enhanced the applied load on part of the Kurit fault, which is partly responsible for the long-lasting postseismic deformation in the region.
•Deformation of pre-modern earthquakes can be measured using historical archives.•We quantified the effects of different scan resolutions on the accuracy of results.•600 dpi is recommended for digitising historical aerial photographs.•We extended the analysis of the 1978 Iran earthquake using the new slip model.
Emergency responders must "see" the effects of an earthquake clearly and rapidly for effective response. This paper presents a novel use of cell phone and information technology to measure ground ...motion intensity parameters. The phone sensor is an imperfect device and has a limited operational range. Thus, shake table tests were performed to evaluate their reliability as seismic monitoring instruments. Representative handheld devices, either rigidly connected to the table or free to move, measured shaking intensity parameters well. Bias in 5%-damped spectral accelerations measured by phones was less than 0.05 and 0.2 log(g) during one-dimensional (1-D) and three-dimensional (3-D) shaking in frequencies ranging from 1 Hz to 10 Hz. They did tend to overestimate the Arias Intensity, but this error declined for stronger motions with larger signal-to-noise ratios. With these ubiquitous measurement devices, a more accurate and rapid portrayal of the damage distribution during an earthquake can be provided.
La unión entre Carl Schmitt y una Constitución liberal y democrática parece cosa imposible a buena parte de la academia. Quién podría vincular, dirán, al «Kronjurist del nazismo» con una Constitución ...liberal y democrática; quien ose hacerlo, continuarán, no sabe lo que dice, es un ignaro completo en temas de derecho e historia constitucionales. Sin embargo, nada más y nada menos que Manuel García-Pelayo, el que fuera primer presidente del Tribunal Constitucional y maestro indiscutido e indiscutible de la ciencia constitucional en nuestro país, será quien lleve las teorías schmittianas a la Constitución española de 1978. En su Inédito sobre la Constitución española de 1978, que vio la luz el pasado 2021, García-Pelayo ofrece una lectura schmittiana de la Constitución que, en lo que nos es dable, tratamos de comentar y desarrollar en el presente texto para, así, hacer ver la compatibilidad entre Carl Schmitt y una Constitución liberal y democrática.
Enviado el (Submission Date): 14/05/2022Aceptado el (Acceptance Date): 23/06/2022
Sintering of Pt nanoparticles dispersed on a planar SiO₂ support was studied by in situ transmission electron microscopy (TEM). A time-lapsed TEM image series of the Pt nanoparticles, acquired during ...the exposure to 10mbar synthetic air at 650°C, reveal that the sintering was governed by the Ostwald ripening mechanism. The in situ TEM images also provide information about the temporal evolution of the Pt particle size distribution and of the growth or decay of the individual nanoparticles. The observed Pt nanoparticle changes compare well with predictions made by mean-field kinetic models for ripening, but deviations are revealed for the time-evolution for the individual nanoparticles. A better description of the individual nanoparticle ripening is obtained by kinetic models that include local correlations between neighboring nanoparticles in the atom-exchange process.
Il s'agira de procurer une lecture représentationnelle et politique du sud du continent européen perçu à partir de deux récits génériquement différents tel que le roman graphique de l'auteur suédois ...Fabian Göranson Un rêve d'Europe (2019 2018), et le bref récit de voyage dans les Balkans de l'écrivain français Emmanuel Ruben, symptomatiquement intitulé Le Coeur de l'Europe (2018). Dans les deux cas, nous avons affaire à des redécouvertes récentes du midi de l'Europe à l'aune des événements historiques et des mutations sociétales découlant aussi bien des conflits engendrés par l'implosion de la Yougoslavie que de la crise des dettes souveraines des pays européens du sud entre 2010 et 2015. En fait, ces deux textes s'avèrent des « impressions de voyage » à travers le regard de narrateurs- personnages globetrotteurs.
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