Optimal Methods
Mostrando 1-12 de 735 artigos, teses e dissertações.
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1. MGF Methods for Fixed and Gain Saturated Optically Preamplified FSO Links Impaired by Misalignments and Atmospheric Turbulence
Abstract The Gaussian approximation is commonly used to evaluate the performance of free space optical communication systems. However, other performance evaluation methods such as the saddle point approximation, Chernoff bound and the modified Chernoff bound have also been used. This paper investigates the performance of fixed and gain saturated optically pr
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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2. Joint Recommendations From The Latin American Association of Cardiac and Endovascular Surgery (LACES) and The Cardiovascular Anesthesia Committee of The Latin American Confederation of Anesthesia Societies (CLASA) on the Timing for Cardiac Surgery After COVID-19 Infection
ABSTRACT Introduction: Since the coronavirus disease 2019 (COVID-19) pandemic, cardiac surgeries in patients with previous infection by COVID-19 were suspended or postponed, which led to surgeries performed in patients with an advanced stage of their disease and an increase in the waiting list. There is a heterogeneous attitude in Latin America on the optim
Brazilian Journal of Cardiovascular Surgery. Publicado em: 2022
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3. Airway management following head and neck microvascular reconstruction: is tracheostomy mandatory?
Abstract Objectives: Airway management following maxillofacial microvascular reconstruction is a fundamental part of the perioperative management. In oral cavity microvascular reconstruction, the airway is potentially compromised by airway edema, flap edema or bulkiness, hematoma formation, or upper airway sequelae from surgery. Classical teaching advocates
Brazilian Journal of Otorhinolaryngology. Publicado em: 2022
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4. Predictive factors of melanoma thickness
Abstract Background: Melanoma thickness is a relevant prognostic marker that is crucial for staging and its calculation relies on the histopathological examination. There is a risk of thickness underestimation with an incisional biopsy if the latter is not performed on a tumor area where the thickness is maximal. This occurrence may have an impact on a ther
Anais Brasileiros de Dermatologia. Publicado em: 2022
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5. Effects of statin response on cardiovascular outcomes in patients with ST-segment elevation myocardial infarction
SUMMARY OBJECTIVE: This study aimed to evaluate the effects of statin response on cardiovascular outcomes in patients with ST-segment elevation myocardial infarction. METHODS: A total of 1029 ST-segment elevation myocardial infarction patients were enrolled in the study. The patients who failed to achieve >40% reduction in baseline low-density lipoprotein
Revista da Associação Médica Brasileira. Publicado em: 2022
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6. Usefulness of the neutrophil-to-lymphocyte ratio in predicting the severity of COVID-19 patients: a retrospective cohort study
ABSTRACT BACKGROUND: Quick and accurate identification of critically ill patients ensures appropriate and correct use of medical resources. In situations that threaten public health, like pandemics, rapid and effective methods are needed for early disease detection among critically ill patients. OBJECTIVE: To determine the relationship between the neutro
Sao Paulo Medical Journal. Publicado em: 2022
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7. Behavioural intention of hand hygiene compliance in an average Ecuadorian hospital
SUMMARY OBJECTIVE: This study aimed to characterize hand hygiene behavioural intention by hospital services clusters in a medium-sized hospital in an Ecuadorian city. METHODS: This is a cross-sectional study based on the World Health Organization Hand Hygiene Knowledge Questionnaire for Health-Care Workers. The responses on hand hygiene behavioural intenti
Revista da Associação Médica Brasileira. Publicado em: 2022
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8. Whole-Exome Sequencing (WES) results of 50 patients with chronic kidney diseases: a perspective of Alport syndrome
SUMMARY OBJECTIVE: Chronic kidney disease (CKD) remains one of the major common health problems, and the number of people affected by the disease is progressively increasing in Turkey and worldwide. This study aimed to investigate molecular defects in Alport syndrome (AS) and other genes in patients with clinically suspected CKD using whole-exome sequencing
Revista da Associação Médica Brasileira. Publicado em: 2022
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9. Effects of sodium-glucose cotransporter-2 inhibitors on nutritional status in heart failure with reduced ejection fraction
SUMMARY OBJECTIVE: This study aimed to evaluate the effects of sodium-glucose cotransporter-2 inhibitors on nutritional status in patients with heart failure with reduced ejection fraction. METHODS: The sodium-glucose cotransporter-2 inhibitor treatment was initiated in 153 patients with heart failure with reduced ejection fraction who were symptomatic des
Revista da Associação Médica Brasileira. Publicado em: 2022
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10. Clinical use of tranexamic acid: evidences and controversies
Abstract Tranexamic acid (TXA) significantly reduces blood loss in a wide range of surgical procedures and improves survival rates in obstetric and trauma patients with severe bleeding. Although it mainly acts as a fibrinolysis inhibitor, it also has an anti-inflammatory effect, and may help attenuate the systemic inflammatory response syndrome found in some
Brazilian Journal of Anesthesiology. Publicado em: 2022
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11. METHODS FOR ESTIMATING THE OPTIMAL PLOT SIZE FOR BLACK OAT, COMMON VETCH AND FORAGE TURNIP INTERCROPPING
RESUMO O objetivo deste trabalho foi comparar três métodos de estimação do tamanho ótimo de parcela para avaliar a matéria fresca de aveia preta (Avena strigosa Schreb), ervilhaca (Vicia sativa L.) e nabo forrageiro (Raphanus sativus L.), cultivadas em consórcio. Foram conduzidos seis ensaios de uniformidade com o consórcio de aveia preta, ervilhaca
Revista Caatinga. Publicado em: 2022
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12. Nomogram for predicting post-traumatic hydrocephalus after decompressive craniectomy for traumatic brain injury
SUMMARY OBJECTIVE: This study aimed to develop and validate a practical nomogram to predict the occurrence of post-traumatic hydrocephalus in patients who have undergone decompressive craniectomy for traumatic brain injury. METHODS: A total of 516 cases were enrolled and divided into the training (n=364) and validation (n=152) cohorts. Optimal predictors w
Revista da Associação Médica Brasileira. Publicado em: 2022