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Yield, Water Use Efficiency and Physiological Characteristic of “Tommy Atkins” Mango under Partial Rootzone Drying Irrigation System

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Journal of Water Resource and Protection 2015年第13期7卷 1029-1037页

作者： Marcelo Rocha dos Santos breno rosa neves Bismarc Lopes da Silva Sérgio Luiz Rodrigues Donato Instituto Federal de Educa ç o Ciência e Tecnologia Baiano Campus Guanambi Bahia Brazil

This study was conducted to evaluate the yield, water use efficiency and physiologic characteristics of “Tommy Atkins” mango under partial rootzone drying. The experiment was carried out in an orchard of mango in the irrigated perimeter of Ceraíma, BA. Five treatments and six repetitions were used with one tree per experimental plot: 01—Full Irrigation, 100% of ETc, 02—100% of ETc with frequency of alternance (FA) of 15 days, 03—80% ETc with FA of 15 days, 04—60% of ETc with FA of 15 days, 05—40% ETc with FA of 15 days. The treatments were conductedfrom the beginning of flowering to the harvest of mango in an orchard irrigated by drip. There was no significant reduction in productivity of “Tommy Atkins” mango under PRD up to 40% of ETc and PRD with 40% ETc resulted in greater water use efficiency. There was no significant difference among the averages of photosynthetically active radiation, Qleaf;leaf temperature, Tl;internal CO2 concentration, Ci;transpiration, E;stomatal conductance, gs;photosynthesis, A;carboxylation efficiency, A/Ci;quantum efficiency of photosynthesis, A/Qleaf and instantaneous water use efficiency, A/E between full irrigation and PRD with different water depth. The increase in leaf temperature causes reduction in A/Qleaf and A/E, however, it increases the transpiration. Increased gs results in higher rates of E, A and A/Ci. The use of the PRD with 40% of ETc causes no interference in gas exchange, maintains the yield and increases water use efficiency in “Tommy Atkins” mango tree.

关键词： Irrigation Strategy Mangifera Regulated Deficit Irrigation

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Pathogenesis and clinical management of Helicobacter pylori gastric infection

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World Journal of Gastroenterology 2019年第37期25卷 5578-5589页

作者： breno Bittencourt de Brito Filipe Ant?nio Fran?a da Silva Aline Silva Soares Vinícius Afonso Pereira Maria Luísa Cordeiro Santos Mariana Miranda Sampaio Pedro Henrique Moreira neves Fabrício Freire de Melo Instituto Multidisciplinar em Saúde Universidade Federal da Bahia

Helicobacter pylori(***)is a gram-negative bacterium that infects approximately 4.4 billion individuals ***,its prevalence varies among different geographic areas,and is influenced by several *** infection can be acquired by means of oral-oral or fecal-oral transmission,and the pathogen possesses various mechanisms that improve its capacity of mobility,adherence and manipulation of the gastric microenvironment,making possible the colonization of an organ with a highly acidic *** addition,*** presents a large variety of virulence factors that improve its pathogenicity,of which we highlight cytotoxin associated antigen A,vacuolating cytotoxin,duodenal ulcer promoting gene A protein,outer inflammatory protein and gamma-glutamyl *** host immune system,mainly by means of a Th1-polarized response,also plays a crucial role in the infection *** most ***-positive individuals remain asymptomatic,the infection predisposes the development of various clinical conditions as peptic ulcers,gastric adenocarcinomas and mucosa-associated lymphoid tissue *** and non-invasive diagnostic methods,each of them with their related advantages and limitations,have been applied in *** ***,bacterial resistance to antimicrobial therapy is a major challenge in the treatment of this infection,and new therapy alternatives are being tested to improve *** *** but not least,the development of effective vaccines against *** infection have been the aim of several research studies.

关键词： Helicobacter pylori Virulence factors Immune response Antibiotics Vaccines

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Highlighting COVID-19:What the imaging exams show about the disease

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World Journal of Radiology 2021年第5期13卷 122-136页

作者： Lorena Sousa de Carvalho Ronaldo Teixeira da Silva Júnior Bruna Vieira Silva Oliveira Yasmin Silva de Miranda Nara Lúcia Fonseca Rebouças Matheus Sande Loureiro Samuel Luca Rocha Pinheiro Regiane Santos da Silva Paulo Victor Silva Lima Medrado Correia Maria José Souza Silva Sabrina neves Ribeiro Filipe Antônio França da Silva breno Bittencourt de Brito Maria Luísa Cordeiro Santos Rafael Augusto Oliveira Sodré Leal Márcio Vasconcelos Oliveira Fabrício Freire de Melo Department of Instituto Multidisciplinar em Saúde Universidade Federal da BahiaVitória da Conquista 45029-094BahiaBrazil

Coronavirus disease 2019(COVID-19),a global emergency,is caused by severe acute respiratory syndrome coronavirus *** gold standard for its diagnosis is the reverse transcription polymerase chain reaction,but considering the high number of infected people,the low availability of this diagnostic tool in some contexts,and the limitations of the test,other tools that aid in the identification of the disease are *** this scenario,imaging exams such as chest X-ray(CXR)and computed tomography(CT)have played important *** is useful for assessing disease progression because it allows the detection of extensive consolidations,besides being a fast and cheap *** the other hand,CT is more sensitive for detecting lung changes in the early stages of the disease and is also useful for assessing disease *** note,ground-glass opacities are the main COVID-19-related CT *** emission tomography combined with CT can be used to evaluate chronic and substantial damage to the lungs and other organs;however,it is an expensive *** ultrasound(LUS)has been shown to be a promising technique in that context as well,being useful in the screening and monitoring of patients,disease classification,and management related to mechanical ***,LUS is an inexpensive alternative available at the ***,magnetic resonance imaging,although not usually requested,allows the detection of pulmonary,cardiovascular,and neurological abnormalities associated with ***,it is important to consider the challenges faced in the radiology field in the adoption of control measures to prevent infection and in the follow-up of post-COVID-19 patients.

关键词： SARS-CoV-2 COVID-19 Pneumonia Pandemic Radiology Tomography

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