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排序方式: 共有1287条查询结果,搜索用时 15 毫秒
71.
Pedro Gabriel Melo de Barros e Silva Otavio Berwanger Elizabete Silva dos Santos Antnio Carlos Sobral Sousa Margaret Assad Cavalcante Pedro Beraldo de Andrade Fernando Carvalho Neuenschwander Hugo Vargas Filho Jorge Ilha Guimares Jadelson Andrade Angelo Amato Vincenzo de Paola Marcus Vinicius Bolivar Malachias Luiz Alberto Piva e Mattos Dalton Bertolim Precoma Fernando Bacal Oscar Pereira Dutra 《Arquivos brasileiros de cardiologia》2020,114(6):995
72.
73.
Jakub Hrubý Vinicius T. Santana Dmytro Kostiuk Martin Bou
ek Samuel Lenz Michal Kern Peter iffalovi
Joris van Slageren Petr Neugebauer 《RSC advances》2019,9(42):24066
The scalability and stability of molecular qubits deposited on surfaces is a crucial step for incorporating them into upcoming electronic devices. Herein, we report on the preparation and characterisation of a molecular quantum bit, copper(ii)dibenzoylmethane [Cu(dbm)2], deposited by a modified Langmuir–Schaefer (LS) technique onto a graphene-based substrate. A double LS deposition was used for the preparation of a few-layer-graphene (FLG) on a Si/SiO2 substrate with subsequent deposition of the molecules. Magnetic properties were probed by high-frequency electron spin resonance (HF-ESR) spectroscopy and found maintained after deposition. Additional spectroscopic and imaging techniques, such as Raman spectroscopy (RS), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), and scanning electron microscopy (SEM) were performed to characterise the deposited sample. Our approach demonstrated the possibility to utilise a controlled wet-chemistry protocol to prepare an array of potential quantum bits on a disordered graphene-based substrate. The deployed spectroscopic techniques showed unambiguously the robustness of our studied system with a potential to fabricate large-scale, intact, and stable quantum bits.Graphene-based hybrid material with array of copper(ii)-based quantum bits was prepared by a wet-chemistry protocol and characterised by HF-ESR, XPS, Raman, and AFM. 相似文献
74.
75.
Evelise Helena Fadini Reis Brunori Camila Takáo Lopes Agueda Maria Ruiz Zimmer Cavalcante Vinicius Batista Santos Juliana de Lima Lopes Alba Lucia Bottura Leite de Barros 《Revista latino-americana de enfermagem》2014,22(4):538-546
OBJECTIVE:
to identify the relationship between different presentations of acute coronary syndrome and cardiovascular risk factors among hospitalized individuals.METHOD:
cross-sectional study performed in a teaching hospital in São Paulo, in the State of São Paulo (SP). Socio-demographic, clinical and anthropometric data of 150 individuals hospitalized due to acute coronary syndrome were collected through interviews and review of clinical charts. Association between these data and the presentation of the syndrome were investigated.RESULTS:
there was a predominance of ST segment elevation acute myocardial infarction. There was significant association of systemic hypertension with unstable angina and high values of low density lipoprotein with infarction, without influence from socio-demographic characteristics.CONCLUSION:
arterial hypertension and high levels of low-density lipoprotein were associated with different presentations of coronary syndrome. The results can provide support for health professionals for secondary prevention programs aimed at behavioural changing. 相似文献76.
Pedro Henrique Campanini Candido Luciana de Souza Nunes Elizabeth Andrade Marques Tania Wrobel Folescu Fábrice Santana Coelho Vinicius Calado Nogueira de Moura Marlei Gomes da Silva Karen Machado Gomes Maria Cristina da Silva Louren?o Fábio Silva Aguiar Fernanda Chitolina Derek T. Armstrong Sylvia Cardoso Le?o Felipe Piedade Gon?alves Neves Fernanda Carvalho de Queiroz Mello Rafael Silva Duarte 《Journal of clinical microbiology》2014,52(8):2990-2997
Worldwide, nontuberculous mycobacteria (NTM) have become emergent pathogens of pulmonary infections in cystic fibrosis (CF) patients, with an estimated prevalence ranging from 5 to 20%. This work investigated the presence of NTM in sputum samples of 129 CF patients (2 to 18 years old) submitted to longitudinal clinical supervision at a regional reference center in Rio de Janeiro, Brazil. From June 2009 to March 2012, 36 NTM isolates recovered from 10 (7.75%) out of 129 children were obtained. Molecular identification of NTM was performed by using PCR restriction analysis targeting the hsp65 gene (PRA-hsp65) and sequencing of the rpoB gene, and susceptibility tests were performed that followed Clinical and Laboratory Standards Institute recommendations. For evaluating the genotypic diversity, pulsed-field gel electrophoresis (PFGE) and/or enterobacterial repetitive intergenic consensus sequence PCR (ERIC-PCR) was performed. The species identified were Mycobacterium abscessus subsp. bolletii (n = 24), M. abscessus subsp. abscessus (n = 6), Mycobacterium fortuitum (n = 3), Mycobacterium marseillense (n = 2), and Mycobacterium timonense (n = 1). Most of the isolates presented resistance to five or more of the antimicrobials tested. Typing profiles were mainly patient specific. The PFGE profiles indicated the presence of two clonal groups for M. abscessus subsp. abscessus and five clonal groups for M. abscesssus subsp. bolletii, with just one clone detected in two patients. Given the observed multidrug resistance patterns and the possibility of transmission between patients, we suggest the implementation of continuous and routine investigation of NTM infection or colonization in CF patients, including countries with a high burden of tuberculosis disease. 相似文献
77.
Cleverton Cesar Spautz MSc Eduardo Schunemann Junior MSc Lucas Roskamp Budel MD Tereza Cristina Santos Cavalcanti PhD Maria Helena Louveira PhD Plinio Gasperin Junior PhD Leonardo Paese Nissen MD Bernardo Passos Sobreiro PhD Maíra Teixeira Dória MSc Cicero Andrade Urban PhD Vinicius Milani Budel PhD 《Journal of surgical oncology》2020,122(2):164-169
78.
79.
Candida albicans Adherence to Denture Base Material: Chemical Disinfection and the Effect of Acquired Salivary Pellicle Formation
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80.
Vinicius M. Mello Lucas M. Bianchi Paulo Sergio F. Sousa Pedro S. Tavares Daniel R. G. Di Salvo Cleber F. Ginuino Nathalia A. A. Almeida Carlos A. S. Fernandes Francisco C. A. Mello Livia M. Villar Lia L. Lewis-Ximenez Barbara V. Lago 《Viruses》2022,14(2)
This study aims to evaluate the epidemiological and molecular features associated with HAV transmission in adults in Rio de Janeiro during a period of increased registered cases of HAV (2017–2018). Socio-epidemiological data and serum samples from anti-HAV IgM+ individuals were obtained. HAV RNA was RT-PCR amplified and sequenced for further phylogenetic and phylogeographic analyses. From fifty-two HAV IgM+ individuals, most were men (78.85%; p = 0.024), aged 20–30 years old (84.61%; p < 0.001), resided in the Rio de Janeiro north zone (31/52; 59.62%; p = 0.001), and are men who have sex with men (MSM) (57.69%; p = 0.002). Sexual practices were more frequent (96%) than others risk factors (food-borne (44%), water-borne (42.31%), and parenteral (34.62%)). Individuals who traveled to endemic regions had a 7.19-fold (1.93–36.04; p < 0.01) increased risk of HAV. Phylogenetic analysis revealed four distinct clades of subgenotype IA, three of them comprised sequences from European/Asian MSM outbreaks and one from Brazilian endemic strains. Bayesian Inference showed that the imported strains were introduced to Brazil during large mass sportive events. Sexual orientation and sexual practices may play a role in acquiring HAV infection. Public policies targeting key populations must be implemented to prevent further dissemination of HAV and other STIs. 相似文献