Difference
Mostrando 25-36 de 20852 artigos, teses e dissertações.
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25. A Finite-Difference Time-Domain Formulation for Modeling Air Ionization Breakdown Streamers
Abstract A numerical model based on the finite-difference time-domain (FDTD) method is developed for calculating discharge currents and fields produced due air ionization between two electrodes. Electric conductivity σ of the ionized channel between two electrodes is calculated using non-linear equations, i.e., σ is obtained using functions of time. The fu
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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26. Rhinological Status of Patients with Nasolacrimal Duct Obstruction
Abstract Introduction Studying the state of the nasal cavity and its sinuses and the morphometric parameters of the inferior nasal conchae, as well as a comparative analysis of obtained values in patients with primary (PANDO) and secondary acquired nasolacrimal duct obstruction (SALDO), is relevant. Objective To study the rhinological status of patients wi
International Archives of Otorhinolaryngology. Publicado em: 2022
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27. The effectiveness of Kangaroo Mother Care in hospitalization period of preterm and low birth weight infants: systematic review and meta-analysis
Abstract Objective: To evaluate the effectiveness of kangaroo mother care (KMC) in reducing the length of hospital stay of preterm and/or low birth weight infants. Source: Cochrane Library, Pubmed, Embase, LILACS, and Scielo. Randomized clinical trials without time or language limit were included. The intervention was the KMC in preterm and/or low birth we
Jornal de Pediatria. Publicado em: 2022
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28. Prone ventilation in intubated COVID-19 patients: a systematic review and meta-analysis
Abstract Background The efficacy and safety profiles of prone ventilation among intubated Coronavirus Disease 2019 (COVID-19) patients remain unclear. The primary objective was to examine the effect of prone ventilation on the ratio of arterial partial pressure of oxygen to fraction of inspired oxygen (PaO2/FiO2) in intubated COVID-19 patients. Methods Dat
Brazilian Journal of Anesthesiology. Publicado em: 2022
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29. Tranexamic acid in total shoulder arthroplasty under regional anesthesia: a randomized, single blinded, controlled trial
Abstract Purpose The purpose of this study was to determine whether Tranexamic Acid (TXA) can significantly reduce perioperative blood loss in Total Shoulder Arthroplasty (TSA) performed under regional anesthesia. Methods We performed a randomized, single blinded, controlled study. Forty-five patients were submitted to TSA under regional anesthesia to trea
Brazilian Journal of Anesthesiology. Publicado em: 2022
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30. Impact of Single versus Double Clamp Technique on Blood Lactate Levels and Postoperative Complications in Coronary Artery Bypass Surgery
Abstract Introduction: Cardiopulmonary bypass (CPB) is associated with hyperlactatemia, which leads to adverse clinical outcomes. No study has examined the effect of different clamping techniques on postoperative hyperlactatemia (PHL). Thus, we aimed to evaluate the impact of two different techniques on PHL and the clinical outcomes in patients undergoing i
Brazilian Journal of Cardiovascular Surgery. Publicado em: 2022
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31. Evaluation of nasal mucociliary clearance by saccharine test in rheumatoid arthritis
Abstract Objective: We aimed to reveal whether there is nasal involvement by examining the Nasal Mucociliary Clearance (NMC) and the relationship between this activity and disease severity in Rheumatoid Arthritis (RA) patients. Methods: In this prospective study, NMC time, disease activity (Disease Activity Score 28) and blood parameters of RA patients (n
Brazilian Journal of Otorhinolaryngology. Publicado em: 2022
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32. Mathematical Modeling of the Film Influence on the Salting Time of Mozzarella Cheese in a Static and Dynamic System: Application of Artificial Neural Networks of the Multilayer Perceptron Type
The NaCl and KCl diffusion in the film formed on the cheese surface during salting was simulated by the finite element method. The time and salts concentration values on the cheese surface were determined, tabulated, and presented to the multilayer perceptron neural network (MLP) for the regression modeling. The samples were divided into 70, 15 and 15% for t
Journal of the Brazilian Chemical Society. Publicado em: 2022
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33. Does Anzer Propolis Have a Protective Effect on Rabbit Spinal Cord Ischemia/Reperfusion Injury?*
Abstract Introduction: In this study, Anzer propolis, which can only be obtained from the Eastern Black Sea region in Turkey, is studied for its effect on spinal cord ischemia/reperfusion injury. Methods: A total of 12 healthy male New Zealand White rabbits with an average weight of 3.0 to 3.5 kg were separated into two blind and randomized groups: the isc
Brazilian Journal of Cardiovascular Surgery. Publicado em: 2022
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34. Effect of patellar resurfacing surgery on bleeding in total knee arthroplasty
SUMMARY OBJECTIVE: Postoperative bleeding is one of the most important factors affecting clinical and functional results in total knee arthroplasty. Therefore, many studies have been conducted on bleeding in arthroplasty patients. However, there are very few reports investigating the effect of patellar surface replacement on bleeding in knee arthroplasty. W
Revista da Associação Médica Brasileira. Publicado em: 2022
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35. Body image and sexual function in women with polycystic ovary syndrome: a case-control study
SUMMARY OBJECTIVES: The study aimed to determine the impact of polycystic ovary syndrome on women’s body image and sexual function. METHODS: In this case-control study, 97 women with polycystic ovary syndrome and 95 healthy women were interviewed in a hospital using the Personal Information Form, Body Image Scale, and Female Sexual Function Index. RESUL
Revista da Associação Médica Brasileira. Publicado em: 2022
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36. Custodiol versus Blood Cardioplegia: Comparison of Myocardial Immunohistochemical Analysis and Clinical Outcomes
ABSTRACT Introduction: Custodiol (histidine-tryptophan-ketoglutarate) and repetitive blood cardioplegia are the solutions for myocardial protection and cardiac arrest. In this study, we aimed to compare immunohistochemical analysis, clinical outcomes, and cardiac enzyme values of Custodiol and blood cardioplegia groups. Methods: This was a randomized prosp
Brazilian Journal of Cardiovascular Surgery. Publicado em: 2022