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The Determinants of Anthropometric Deficits in Children under Five Years Old in Tete Province Mozambique Using Hierarchy Approach

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Open Journal of Epidemiology 2019年第1期9卷 15-26页

作者： Jonas B. Daniel Elisabete Pinto Valterlinda de Oliveira Queiroz Ana Marlucia de Oliveira School of Nutrition Federal University of Bahia Salvador Brazil center of Health Sciences Federal University of Rec&#244 ncavo of Bahia Santo António de Jesus Brazil

Introduction: The malnutrition in children under 5 years is a serious public health problem in the developing countries such as Mozambique. The stunting can affect cognitive and physical development and compromise the school performance. Method: A cross sectional study was carried out which used the secondary data from a survey conducted by National Health Institute of Mozambique, in districts of Angonia, Tsangano, Magoe and Changara in Tete Province, Mozambique. The polynomial regression model and the hierarchical approach were used to examine the association between social economic factors and malnutrition in children measured by stunting (low height for age) and underweight (low weight for age). Results: The prevalence of moderate and severe stunting was 39.8%, and prevalence of moderate and severe underweight was 19.6%. In the basic level, the households that had 1 durable goods possession were associated to 1.46 times greater than the mild underweight, OR = 1.46 (C.I. 95% 1.02 - 2.11). In the intermediate level, lack of latrine increased 2.01 times greater than the moderate and severe underweight in children, OR = 2.01 (C.I. 95% 1.09 - 3.70);In the immediate level, the child deworming had 1.91 times greater than the moderate and severe stunting, OR = 1.91 (C.I.95% 1.04 - 3.52) and children who did not breastfeed had 2.42 times greater than the moderate and severe stunting, OR = 2.42 (C.I. 1.49 - 3.43). Conclusion: In the countries where the weak health system and the inadequate children food are frequent, the prevalence of undernutrition in children remains very high.

关键词： Child Underweight Stunting Hierarchy Approach Tete Mozambique

Soot combustion; Ceria; Ternary mixed oxide; Cordierite coating; Diesel particulate filter

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Journal of Environmental Sciences 2018年第11期30卷 58-68页

作者： Leandro Fontanetti Nascimento Juliana Fonseca Lima Paulo Cesar de Sousa Filho Osvaldo Antonio Serra Department of Chemistry FFCLRP University of Sao Paulo 14040-901 Ribeirao Preto Sao Paulo Brazil Institute of Chemistry Rio de Janeiro State University 20550-900 Rio de Janeiro Rio de Janeiro Brazil Institute of Chemistry Uniuersity of Campinas 13083-970 Campinas Silo Paulo Brazil center of-Natural and Human Sciences Federal Uniuerty of ABC 09210-580 Santo Andre Sao Paulo Brazil

We report the application of a solid lanthanum-ceria-zinc catalyst in the catalytic regeneration of diesel particulate filters （DPF） in diesel engines. We synthesized a CeO2- ZnO-La2O3 （Ce-Zn-La） mixed oxide by a lactic acid-mediated sol-gel method, which efficiently coated cordierite substrates for soot capture and combustion. We studied the effects of La loading on the physicochemical and catalytic properties of Ce-Zn mixed oxide during lowtemperature soot combustion processes. We characterized the synthesized catalysts by X-ray diffraction （XRD）, Fourier-transform infrared spectroscopy （FTIR）, N2 adsorption, Raman spectroscopy, oxygen storage capacity （OSG）, and scanning and transmission electron microscopy （SEM and TEM）. Thermogravimetric and differential thermal analysis （TGA/DTA） confirmed that the catalysts effectively reduced the soot oxidation temperature. The ternary Ce-Zn-La mixed oxide catalyst with Ce/Zn/La atomic ratio of 2：1：0.5 had the highest catalytic activity and promoted soot oxidation at temperatures below 390℃. This indicated that the large number of oxygen vacancies in the catalyst structure generated oxygen species at low temperatures. Raman spectroscopy measurements revealed the presence of oxygen vacancies and lattice defects in Ce-Zn-La samples, which were key parameters concerning the stability and redox properties of the prepared catalysts.

关键词： Soot combustion Ceria Ternary mixed oxide Cordierite coating Diesel particulate filter

Using Condensed Water of Air Conditioners for Toilet Flushing： A Case Study in Brazil

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Journal of Civil Engineering and Architecture 2013年第1期7卷 98-104页

作者： Celso Silva Bastos Joao Luiz Calmon Postgraduate Program in Civil Engineering Technology Center Federal University of Espirito Santo Vit6ria 29000-000 Brazil

Within the concept of sustainable construction, with sensible and conscious use of finite natural resources, every effort to save and reuse raw-materials is considered an important step to be adopted in buildings, from project, implantation and construction to operation and maintenance throughout their lifecycle. This study aims at showing the application of a system that reuses condensed water drained from air-conditioner evaporators （which are usually disposed of）, and a plan to use this water for toilet flushing, reducing consumption of treated water bought from water companies. The authors verified that each air-conditioner specified in the project of a commercial building--used as reference here--produces 4.8 L of water per hour of operation. This result in a daily accumulated volume of 4,290 L, which represents a significant part of the amount needed to supply all the toilets in the building. A water capture system located at a strategic intermediate floor would be able to store this water and pump it into a special reservoir on the roof of the building, to be distributed into toilet flush pipes. By applying this technology, the authors seek to considerably reduce the expected treated water consumption and consequently decrease water bill costs.

关键词： Water reuse air-conditioner toilet flush.

Chronic Non-Communicable Diseases in College Students in the Brazilian Western Amazon Region

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Health 2014年第19期6卷 2749-2755页

作者： Lucas Felipe de Macedo Tatiane Dalamaria Margarida de Aquino Cunha Luiz Carlos de Abreu Orivaldo Florencio de Souza center for Health Sciences and Sports Federal University of Acre Rio Branco Brazil federal university of Acre Rio Branco Brazil Faculty of Medicine of ABC Santo André Brazil

The objective of this study was to analyze the prevalence of chronic non-communicable diseases (CNCDs) and associated lifestyle factors in college students in Rio Branco, Acre, Brazilian Western Amazon region. A cross-sectional study was conducted in 874 undergraduate students from a public university. The general prevalence of CNCDs was 15.6%. After adjusting for sex and age, the CNCD-associated lifestyle factors included the following: sedentary during leisure time (prevalence ratio (PR): 1.67;95% confidence interval (CI): 1.12 - 2.48), sedentary in locomotion by walking (PR: 1.34;95% CI: 1.00 - 1.79), current smoker (PR: 1.66;95% CI: 1.07 - 2.58), unsatisfactory self-rated health status (PR: 2.31;95% CI: 1.84 - 2.88), overweight (PR: 1.67;95% CI: 1.14 - 2.46) and obese (PR: 3.30;95% CI: 2.18 - 5.01). The high prevalence of CNCDs identified in this group of college students highlights the need for swift action to promote healthy lifestyles among youth.

关键词： Chronic Disease Epidemiological Factors Students Cross-Sectional Studies

A review on the synergism between corrosion and fatigue of magnesium alloys:Mechanisms and processes on the micro-scale

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Journal of Magnesium and Alloys 2024年第8期12卷 3062-3093页

作者： Mara Cristina Lopes de Oliveira Rejane Maria Pereira da Silva Ricardo M.Souto Renato Altobelli Antunes federal university of the ABC Center for EngineeringModeling and Applied Social SciencesAv.Dos Estados500109280-560 Santo AndréSPBrazil Department of Chemistry-PPGQ State University of PiauíUESPICampus Poeta Torquato NetoPirajáTeresina 64002-150 PIBrazil Institute of Material Science and Nanotechnology University of La LagunaP.O.Box 45638200 La LagunaTenerifeSpain

Understanding the interaction between cyclic stresses and corrosion of magnesium(Mg)and its alloys is increasingly in demand due to the continuous expansion of structural applications of these *** review is dedicated to exploring the corrosion-fatigue mechanisms of these materials,with an emphasis on microscale processes,and the possibility of expanding current knowledge on this topic using scanning electrochemical *** interaction between fatigue and corrosion of Mg alloys is analyzed by considering the microstructural aspects(grain size,precipitates,deformation twins),as well as the formation of ***,in the case of coated alloys,the role of coating defects in these phenomena is also *** this context,the feasibility of using scanning electrochemical microscopy(SECM),scanning vibrating electrode technique(SVET),scanning ion-selective electrode technique(SIET),localized electrochemical impedance spectroscopy(LEIS)and scanning Kelvin probe(SKP)methods to study the corrosion-fatigue interaction of Mg alloys is examined.A comprehensive review of the current literature in this field is presented,and the opportunities and limitations of consolidating the use of these techniques to study the microscale processes involved in Mg corrosion-fatigue are discussed.

关键词： Magnesium alloys Localized corrosion and protection Fatigue Scanning electrochemical microscopy Scanning vibrating electrode technique Scanning ion-selective electrode technique Scanning Kelvin probe Chemical imaging

Raman Spectroscopy Mapping of Plasma Thermally Sprayed Silicon Sheet for Solar Cell Substrate

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材料科学与工程（中英文版） 2011年第5期5卷 561-569页

作者： Igor Alessandro Silva Carvalho Ricardo Luis Ribeiro Andre Luis Pimenta Farial Eduardo Perini Muniz Jose Roberto Tavares Branco Technological center Foundation of Minas Gerais Brazil Material Engineering Thematic Web Brazil university of the State of Minas Gerais Brazil federal Technological Education center Brazil federal university of espirito santo Brazil

Chemical composition, antiparasitic and cytotoxic activities of aqueous extracts of Ziziphus joazeiro Mart

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Asian Pacific Journal of Tropical Biomedicine 2019年第5期9卷 222-226页

作者： Jacqueline Cosmo ANDrade Ana Raquel Pereira da Silva Ant?nia Thassya Lucas dos santos Maria Audilene Freitas Yedda Maria Lobo Soares de Matos Maria Flaviana Bezerra Morais Braga Camila Fonseca Bezerra Maria Isabeli Pereira Gon?alo Maria Celeste Vega Gomez Míriam Rolóm Cathia Coronel Paulo Riceli Vasconcelos Ribeiro Edy Sousa de Brito Henrique Douglas Melo Coutinho Microbiology and Molecular Biology Laboratory Biological Chemistry Department Regional University of Cariri-URCA Bioassays Laboratory-LABIO Federal University of Cariri-UFCA Brejo Santo University campus (CE) center for the Development of Scientific Research Moisés Bertoni Foundation/Díaz Gill Laboratories Natural Products Chemistry Multiuser Laboratory LMQPN Embrapa Tropical Agroindustry

Objective: To compare the in vitro antiparasitic activity of aqueous extracts from Ziziphus joazeiro leaves and stem bark against Trypanosoma cruzi, Leishmania braziliensis, and Leishmania infantum, as well as to evaluate its cytotoxicity in mammalian cells, in addition to identifying the chemical composition of the extracts. Methods: Ziziphus joazeiro leaf and stem bark aqueous extracts were prepared by cold extraction maceration and subjected to ultra-efficient liquid chromatography coupled to a quadrupole/time of flight system. The susceptibility assays used Trypanosoma cruzi CLB5 strains and promastigote forms of Leishmania braziliensis and Leishmania infantum for antiparasitic activity of the extracts. Moreover, mammalian fibroblasts NCTC clone 929 were used for cytotoxicity analysis. Results: Terpenoid compounds, flavonoids and phenolic acid were identified in extracts. The stem bark aqueous extracts presented more significant results in terms of antiparasitic activity compared with the leaf aqueous extracts, especially against Leishmania braziliensis and Leishmania infantum promastigote forms with an IC50 < 500 μg/mL. The cytotoxicity evaluation showed moderate toxicity of the stem bark aqueous extracts, which is relevant information for the rational use of this plant part since it is widely used by the population. Conclusions: These preliminary results may contribute to the formulation of new therapeutic agents against this group of neglected diseases, so further investigations are required to delineate the mechanisms of action mainly of the aqueous extract of stem bark of Ziziphus joazeiro.

关键词： Antiepimastigote Antipromastigote UPLC-MS-ESI-QTOF

Investigating local corrosion processes of magnesium alloys with scanning probe electrochemical techniques: A review

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Journal of Magnesium and Alloys 2022年第11期10卷 2997-3030页

作者： Mara Cristina Lopes de Oliveira Rejane Maria Pereira da Silva Ricardo M.Souto Renato Altobelli Antunes federal university of ABC Center for EngineeringModeling and Applied Social SciencesAv.Dos Estados500109210-580Santo AndréSP Brazil Instituto de Pesquisas Energéticas e Nucleares IPEN/CNENAv.Prof.Lineu Prestes2242São PauloBrazil Institute of Material Science and Nanotechnology University of La LagunaP.O.Box 456La LagunaTenerife 38200Spain

The study of corrosion of magnesium and its alloys has emerged a hot topic in the applications of lightweight structural materials. The inherently high electrochemical activity of bare magnesium surfaces still lacks a convincing mechanism to describe the observed experimental characteristics, and it has prompted the development of various types of protective coatings with the aim of slowing metal dissolution. In recent years, new instruments and techniques have been developed to study with spatial resolution the local corrosion processes that occur in metallic materials in general, and for magnesium and its alloys in particular, both for bare surfaces and coated. Scanning microelectrochemical techniques, such as local electrochemical impedance spectroscopy(LEIS), scanning electrochemical microscopy(SECM), scanning vibrating electrode technique(SVET), scanning ion-selective electrode technique(SIET) and scanning Kelvin probe(SKP) can provide information about the local electrochemical activity of metallic surfaces. In the present work, the applications of these techniques in corrosion studies of magnesium and its alloys are reviewed. Assessment of corrosion mechanisms, barrier properties of conventional coatings and active corrosion behavior of self-healing coatings are examined. Limitations and future developments in this area are discussed.

关键词： Magnesium alloys LEIS SECM SVET SIET SKP

Estimation of Natural Gas Production,Import and Consumption in Brazil Based on Three Mathematical Models

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Natural Resources 2012年第2期3卷 42-47页

作者： Antonio Carlos Gracias Sergio Ricardo Lourenco Marat Rafikov Engineering Modeling and Applied Social Sciences Center(CECS)Federal University of ABCSanto AndreBrazil Department of Mathematics University Center of FEISao Bernardo do CampoBrazil

A mathematical model capable of providing a forecast of future consumption and import of natural gas is essential for the planning of the Brazilian energy matrix. The aim of this study is to compare three mathematical models, logistic model or model of Verhulst, exponential model or the model of Malthus and the model of von Bertalanffy to analyze the possibilities of these models to describe the evolution of production, import and consumption of natural gas in Brazil, from data provided by the energy balance of the Ministry of Mines and Energy (MME) from 1970 to 2009. A projection of the production and the import of natural gas up to 2017 is made with the models studied in this article and compared with the Brazilian Ten-Year Plan for Expansion of Energy (PDE). At the end of this paper a comparison with the Hubbert model for Brazilian natural gas production is made. These data were adjusted to use the differential equations which describe the models of population growth. All the computer work used in this article: graphics, resolution of differential equations, calculations of linearization and the least squares fitting was prepared in the software MatLab. The results obtained by means of graphs show that the population dynamics models (logistic, exponential and von Bertalanffy) can be applied in modeling the production, import and consumption of natural gas in Brazil.

关键词： Natural Gas Mathematical Modeling Logistic Model Exponential Model Model of Von Bertalanffy