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Paiva Aline Lariessy Campos,Aguiar Guilherme Brasileiro de,Flores Juan Antonio Castro,Veiga José Carlos Esteves 대한뇌혈관외과학회 2021 Journal of Cerebrovascular and Endovascular Neuros Vol.23 No.3
Blood Blister-like aneurysms are intracranial non-saccular aneurysms with higher rupture risk due to its fragile wall. Diagnosis is performed in the acute phase of a subarachnoid hemorrhage. There are several treatment options based on reconstructive or deconstructive techniques. This paper aims to discuss the limitations of microsurgery clipping for a ruptured blister aneurysm. We report on a case of a female patient presented with a Fisher III subarachnoid hemorrhage. Cerebral angiography revealed an internal carotid artery blister aneurysm. Initially microsurgery clipping was successfully performed. However, after a few days the patient presented new subarachnoid hemorrhage. The new cerebral angiography showed growth of the previously clipped aneurysm, with displacement of the clip from the position adjacent to the artery. High-flow bypass was performed obtaining definitive treatment. This is a definitive approach for blister aneurysms. If microsurgery clipping is chosen, a strict follow-up is required due to the dynamic nature of this lesion and the chance of re-bleeding even after successfully clipping.
( Juliano Paiva Junho ),( Karina G. S. De Oliveira ) 한국포르투갈-브라질학회 2020 포르투갈-브라질 연구 Vol.17 No.2
Este artigo apresenta uma análise inicial de dados coletados sobre a percepção dos sons da língua portuguesa por falantes nativos de coreano, estudantes em fase inicial de aprendizado na BUFS (Busan University of Foreign Studies ─ Universidade de Estudos Estrangeiros de Busan), Coreia do Sul. Discutimos alguns dos diversos sistemas de romanização do coreano e suas idiossincrasias. Seguimos comentando brevemente os sistemas fonológicos de ambas a línguas e comparando-os frente a frente, demonstrando os seus pontos de divergência que podem vir a criar problemas quando do ensino da língua portuguesa. Continuamos discutindo o experimento elaborado com palavras selecionadas a partir dessas divergências dos sistemas fonológicos das línguas, apresentamos a metodologia pela qual os dados foram coletados e as formas de processamento computacional usadas. Por fim, focamo-nos na análise das consoantes oclusivas em posição inicial de palavras, visto que apresentam grande dificuldade para os aprendizes. Apresentamos os resultados obtidos dos alunos que demonstram que a percepção dos fonemas consonantais surdos (/p, t, k/) e sonoros (/b, d, g/) da língua portuguesa não é algo simples que se possa ensinar sem esforço. Comentamos, brevemente, ao final do artigo, propostas de abordagem didática para os problemas levantados sobre o ensino de fonética/fonologia do português para coreanos. This article presents an initial analysis of data collected on the perception of sounds of the Portuguese language by native Korean speakers, students in the initial learning phase at BUFS (Busan University of Foreign Studies - Busan University of Foreign Studies), South Korea. We discuss some of the several systems of Korean romanization and its idiosyncrasies. We continue commenting briefly on the phonological systems of both languages and comparing them face to face, demonstrating their points of divergence that may create problems when teaching Portuguese. We then discuss the experiment developed with words selected from divergent points in each language’s phonological system and present the methodology by which the data were collected, as well as the forms of computational processing used. Finally, we focus on the analysis of the occlusive consonants in word initial position since they present great difficulty for Korean students. We present results that the perception of voiceless (/p, t, k/) and voiced (/b, d, g/) consonant phonemes in Portuguese is not something simple that can be taught without effort. At the end of the article, we briefly propose a didactic approach on the problems raised about teaching Portuguese phonetics/phonology to Koreans.
Cristol de Paiva Gouvˆea,F´abio Teixeira Dias,Valdemar das Neves Vieira,Douglas Langie da Silva,Jacob Schaf,Frederik Wolff-Fabris,Joan Josep Roa Rovira 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.62 No.10
In this work we report on systematic field-cooled magnetization experiments in melt-textured YBa2Cu3O7−δ samples containing Y211 precipitates. Magnetic fields up to 14 T were applied either parallel or perpendicular to the ab planes and a strong paramagnetic response related to the superconducting state was observed. This effect is known as paramagnetic Meissner effect (PME). The magnitude of the PME increases when the field is augmented. This effect shows a strong paramagnetic relaxation, such that the paramagnetic moment increases as a function of the time. The pinning by the Y211 particles plays a crucial role in the explanation of this effect and our results suggest that the pinning capacity can produce a strong flux compression into the sample,originating the PME and the strong time dependence.
Using Prazosin to Treat Posttraumatic Stress Disorder and Associations: A Systematic Review
Henrique Soares Paiva,Idiberto José Zotarelli Filho,Carlos Filinto da Silva Cais 대한신경정신의학회 2021 PSYCHIATRY INVESTIGATION Vol.18 No.5
Objective A central adrenergic hyperactivation is described in the neurobiology of posttraumatic stress disorder (PTSD) with probable variable symptomatic impact. Few studies have evaluated using the alpha-1 adrenergic antagonist prazosin for such symptoms; however, given the likely pathophysiology involved, this drug may play an important role in the pharmacological approach to PTSD.Methods This study assessed articles already published on the use of prazosin through a systematic review along a timeline in view of the symptomatic target of difficult access by standardized treatments. The impact of using this medication for the general symptoms of PTSD is also discussed. Several databases were searched for articles in the literature on the use of prazosin to treat PTSD.Results A total of 168 articles were found containing search terms in the title or abstract. Overall, 85 articles met the criteria described, and 48 studies were explored to conduct the present systematic review. Most articles showed some improvement after prazosin administration, especially in relation to sleep symptoms (nightmares and night waking). Only one article demonstrated no improvement after the use of this drug. More randomized studies are needed.Conclusion Several clinical studies demonstrated the relevant role of prazosin for treating PTSD symptoms. Prazosin is an affordable and cost-effective pharmacological option compared to other drugs used to treat PTSD.
Eco-Friendly Manufacturing of Nano-TiO2 Coated Cotton Textile with Multifunctional Properties
Mirele Horsth de Paiva Teixeira,Luís Antônio Lourenço,Wagner Artifon,Celso Junior de Castro Vieira,Sergio Yesid Gómez González,Dachamir Hotza 한국섬유공학회 2020 Fibers and polymers Vol.21 No.1
In this work, multifunctional cotton fabrics were developed by immobilizing TiO2 nanoparticles (TiO2-NPs) usingan eco-friendly bath through a highly-scalable technique. The effects of TiO2-NPs, cross-linking agent, catalyst and curingtemperatures were assessed by analysis of variance and surface response methodology. The results disclose an excellentperformance of treated textiles for various applications: flame-retardant (char content enhanced by 1000 %), photocatalyticdecontamination (>90 % of contaminant abatement and feasibility for multiple reuses), self-cleaning of intense stains (up to80 % of stain vanishing), bacterial inhibition without TiO2 UV-activation (≈25 % of bacteria growth reduction). Moreover,those properties were durable for at least five domestic laundering cycles.
Pedro Ribeiro,Anabela Paiva,João Varajão,Caroline Dominguez 대한토목학회 2013 KSCE Journal of Civil Engineering Vol.17 No.4
The construction industry plays a very important role in the Portuguese economy. In 2009, it was among the top five economic sectors, representing 13% of total employment. Nevertheless, project failures are still frequent mainly due to inadequate management practices and to the intrinsic characteristics of projects of the construction industry. Even though Portuguese construction has improved in recent years, cost and schedule overruns, low productivity and final product quality problems are still common. In this context, project management is a crucial tool for improving construction operations and for the overall success of projects. The aim of this article is to contribute to the discussion on success evaluation factors in a field where little has been written – the construction industry. Through a survey of 40 medium and large Portuguese companies several factors were identified which are currently considered in the evaluation of project success, as found in the literature review. The results show that the traditional factors, often referred to as the “Atkinson elements triangle” (cost, time and quality), are still the most relevant for evaluating