7,359 research outputs found
SFM and SEM investigation of CdS layers from Langmuir-Blodgett film templates
No full textThe morphology of ultrathin layers of CdS nanocrystals from cadmium arachidate Langmuir-Blodgett (LB) film templates has been investigated by means of scanning force and scanning electron microscopies (SEM). Consistently with previous Brewster angle microscopy investigations, low resolution electron micrographs reveal a flat film surface characterized by steps due to the difference in the number of precursor layers. Scanning force microscopy (SFM) allows one to get information on the mesoscopic and atomic film structure. While in the range 1-10 mu m the film appears to be formed by a series of flat platforms, often shaped like triangles and sometimes superorganized in larger needle-like structures, in the hundred nanometer scale an irregular granular structure appears. Finally, performing zooms onto flat platforms, the CdS hexagonal lattice appears, revealing a lattice periodicity of 0.42 nm, in agreement with the bulk value. (C) 1998 Elsevier Science S.A. All rights reserved
TEMPERATURE OF DEPOSITION OF A FLOW DEPOSITS (NUEE' ARDENTE) NEAR PALMA CAMPANIA (NAPLES)
No full textTEMPERATURE OF DEPOSITION OF A FLOW DEPOSITS (NUEE' ARDENTE) NEAR PALMA CAMPANIA (NAPLES)
No full text[Poesia] Três poemas de Alberto Secama
No full textThree poems by Alberto Secama. About the author: Alberto Secama is an Angolan poet who has poems published on many websites and on facebook:https://www.facebook.com/Xungurra/abouthttp://www.pordentrodaafrica.com/cultura/africa-em-verso-rio-kwanza-por-alberto-secamahttp://www.pordentrodaafrica.com/cultura/africa-em-verso-zong-por-alberto-secamahttp://www.pordentrodaafrica.com/cultura/coluna-africa-em-verso-o-sol-la-fora-por-alberto-secamaTres poemas de Alberto Secama. Sobre el autor: Alberto Secama es un poeta angoleño que tiene poemas publicados en varios sitios y en el facebook:https://www.facebook.com/Xungurra/abouthttp://www.pordentrodaafrica.com/cultura/africa-em-verso-rio-kwanza-por-alberto-secamahttp://www.pordentrodaafrica.com/cultura/africa-em-verso-zong-por-alberto-secamahttp://www.pordentrodaafrica.com/cultura/coluna-africa-em-verso-o-sol-la-fora-por-alberto-secamaTrês poemas de Alberto Secama. Sobre o autor: Alberto Secama é um poeta angolano que possui poemas publicados em vários sites e no facebook:https://www.facebook.com/Xungurra/abouthttp://www.pordentrodaafrica.com/cultura/africa-em-verso-rio-kwanza-por-alberto-secamahttp://www.pordentrodaafrica.com/cultura/africa-em-verso-zong-por-alberto-secamahttp://www.pordentrodaafrica.com/cultura/coluna-africa-em-verso-o-sol-la-fora-por-alberto-secam
Gastrointestinal Bleeding in COVID-19 Patients: A Rapid Review
No full textThe incidence of COVID-19 gastrointestinal manifestations has been reported to range from 3% to 61%. There are limited data on the incidence rates and risk factors associated with gastrointestinal bleeding (GIB) in patients with COVID-19. A rapid review has been designed to investigate whether there is a relationship between COVID-19 and GIB in adult patients. PubMed, CINAHL, EMBASE, Cochrane Library, and Scopus databases have been analyzed. A total of 129 studies were found; 29 full texts were analyzed, and of these, 20 were found to be relevant to the topic. The key findings of the included studies present an overall GIB rate in COVID-19 patients ranging from 1.1% to 13%. The bleeding involves mucosal damage of the duodenum, stomach, colon, and rectum. The management of gastrointestinal bleeding could be conservative. The use of fecal diversion systems for the management of diarrhea in COVID-19 patients should be minimized and closely evaluated for the risk of rectal mucosal damages and erosions. It is recommended to provide an accurate nutritional assessment; an early setting up of enteral nutrition, if not contraindicated, can help protect the gut mucosa of patients and restore normal intestinal flora. Larger cohort studies are needed to increase the information about this topic
Orizzonti mantovani. Spunti e dinamiche paesaggistiche ne L'Illustrissimo di Alberto Cantoni
No full textIn the literary production of Alberto Cantoni, short story writer and novelist between the nineteenth and twentieth centuries, the novel L'Illustrissimo is highly important both because it is the last publication of the author, from Pomponesco, a small town a few kilometers south of Mantua, both because it summarizes in a single text the different nuances and different directions that his writing has taken over the course of his literary career, also due to a writing and processing time that embraces the entire span of years of his career itself. In the foreground, in addition to the numerous and brilliant characters, one of the protagonists is the Mantuan landscape which, not a simple background, becomes a true literary parameter which in different and significant ways affects the purposes and mechanisms of the novel
Struttura della testa di spermatozoo di Eledone cirrhosa con microscopia a scansione di forza e confocale
No full textPlenary Session: Luis Alberto Urrea
No full texta) Plenary Session: Luis Alberto Urrea, Mexican American Chicago Writer
Luis Alberto Urrea is a 2005 Pulitzer Prize finalist for non-fiction and member of the Latino Literature Hall of Fame. He is a prolific and acclaimed writer who has used his dual-culture life border experiences to explore the complex and interconnected Mexican-US American reality. The critically acclaimed and best-selling Mexican-born author of 13 books, Urrea has won numerous awards for his poetry, fiction and essays.
Moderator: Dr. Héctor García, Loyola University Chicag
O duplo significado do sentir e do pensar nas obras de Alberto Caeiro e Descartes
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão. Programa de Pós-Graduação em LiteraturaA pretensão desta dissertação intitulada O duplo significado do sentir e do pensar nas obras de Alberto Caeiro e Descartes é investigar a relação entre o sentir e o puro pensar, usando como referência a poesia O Guardador de Rebanhos, de Alberto Caeiro, que apresenta de forma evidente o tema; e como este assunto é tratado nas Meditações Metafísicas de René Descartes, também de forma claramente visível. Podemos perceber em ambos os autores, uma diplopia, uma espécie de duplo olhar sobre a relação sentir e puro pensar. No primeiro capítulo vou falar sobre a tese do duplo olhar de Descartes, a respeito da relação sentir e puro pensar na leitura de Merleau-Ponty, salientando a visão de natureza. No segundo capítulo, parto da leitura das três primeiras Meditações Metafísicas para caracterizar a tensão que se pode verificar entre Descartes e Alberto Caeiro quando se referem ao puro pensar. O foco principal de Descartes, nas três primeiras Meditações, é o pensar puro, e neste ponto Alberto Caeiro critica o pensar puro. No terceiro capítulo, analisando as três últimas Meditações, percebe-se que há uma virada no pensamento de Descartes, no qual o autor inverte seu ponto de vista, aproximando-se da idéia de Alberto Caeiro. No quarto capítulo, mostrarei a leitura que outros autores fazem acerca do sentir e do pensar na obra de Alberto Caeiro, mostrando que assim como Descartes, este também ostenta uma diplopia, não do sentir, mas do pensar. The pretension of this work entitled O duplo significado do sentir e do pensar nas obras de Alberto Caeiro e Descartes is to investigate the relationship between the feeling and the pure thinking, using as reference the poetry O Guardador de Rebanhos, by Alberto Caeiro, that presents in an evident way this theme; and as this subject is treated in René Descartes' Metaphysical Meditations, also in a clearly visible way. It is possible to notice in both authors, the diplopy, a sort of double look about the relationship between feeling and pure thinking. The thesis about Descartes'double look regarding the relation of feeling and pure thinking, in Merleau-Ponty reading, pointing out the nature vision, will be treated in the first chapter. In the second chapter, I start from the reading of the first three Metaphysical Meditations to characterize the tension that can be verified between Descartes and Alberto Caeiro when they refer to the pure thinking. Descartes' main focus in the first three Meditations is pure thinking and, in this point, Alberto Caeiro criticizes pure thinking. In the third chapter, analyzing the last three Meditations, it is possible to notice that there is an alteration in Descartes' thought, in which the author inverts his point of view, approaching of Alberto Caeiro's idea. In the fourth chapter, I will show the reading that other authors do concerning feeling and thinking in Alberto Caeiro's work, showing that as well as Descartes, this also shows a diplopy, not of feeling, but of thinking
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