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Acute Hemorrhagic Fever: Clinical, Epidemiological and Laboratory Aspects in São Toméand Príncipe

Advances in Infectious Diseases 2022年第4期12卷 721-744页

作者： Eula Carvalho Didiena Vilhete Clara Assunção Ana Silva Jessica Vicente Ana Cristina cleiser vagente Francelina Costa Celdidy Monteiro Bakissi Pina Medicine Service Dr. Ayres de Menezes Hospital S&#227 o Tomé S&#227 o Tomé and Príncipe Manuel Quaresma Dias da Graç a Hospital S&#227 o Tomé S&#227 o Tomé and Príncipe Centro de Saúde de Mezochi Health Area of Mezochi S&#227 o Tomé S&#227 o Tomé and Príncipe Laboratory of Clinical Analyses Hospital Dr Ayres de Menezes S&#227 o Tomé S&#227 o Tomé and Príncipe Direction of Health Care Sector of Investigation Department of Epidemiological Surveillance S&#227 o Tomé S&#227 o Tomé and Príncipe

Background: In the last 6 months, cases of acute hemorrhagic fever (AHF) have been recorded in Sao Tome and Principe (STP). Objective: To identify the clinical, epidemiological and laboratory parameters associated with AHF cases found in patients hospitalized in STP. Methods: Descriptive and quantitative analysis of AHF cases hospitalized in STP in the period December 2021 to May 19, 2022 through the variables: demographic data;clinical data;laboratory data and clinical outcome. Results: Analyzed 18 of 22 AHF cases, 50% of them male, mean age 33.7 years, 85.7% residing in the 2 largest districts of the country, 66.7% rural workers, administrative near maritime areas, sailors and domestics. 66.7% were healthy individuals. ≥50% had a fever, asthenia/weakness, myalgia, headache, lethargy, nausea, vomiting, and diarrhea. 22.2% to 33.3% had retro-orbital pain, abdominal pain, decreased consciousness, dyspnea/hypoxia, and cough. In a smaller register (5.6% - 11.1%), exanthema, convulsion, arthralgia, low back pain, chills, and chest pain. Bleeding from the digestive tract was found in 72.2%, followed by vaginal (33.3%), urethral (27.8%), nasal (22.2%), and oral (16.7%). 50% had laboratory confirmation for dengue, and another 50% with suspected clinical diagnosis without laboratory confirmation of the etiologic agent. Despite hemorrhage, 66.7% of confirmed cases were hemodynamically non-severe, and 88.9% of suspected cases were severe. Coinfection with malaria is evidenced in 11.1% of cases. 72.2% recovered and 27.8% died (deaths in 55.5% of suspected cases). Case deaths were male (100%), resident foreigners (40%), tool store employees, sailors and students, healthy (80%), and residing in the largest district in the country (60%). All deaths were hospitalized in serious condition, 80% were hospitalized for hemorrhage and shock, with bleeding arising between day 4 - 5 of illness in 60% and hospitalization on day 5 of illness. 60% died within ≤24 hours of hospitalization. 80

关键词： Acute Hemorrhagic Fever Viral Hemorrhagic Fever Dengue São Tomé and Príncipe Hospitalization Epidemic Dr. Ayres de Menezes Hospital

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Bactericidal activity of hydrogel beads based on N,N,N-trimethyl chitosan/alginate complexes loaded with silver nanoparticles

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Chinese Chemical Letters 2015年第9期26卷 1129-1132页

作者： Alessandro F.Martins Johny P.Monteiro Elton G.Bonaf Adriana P.Gerola cleiser T.P.Silva Emerson M.Girotto Adley F.Rubira Edvani C.Muniz Departamento de Quimica Universidade Tecnologica Federal do Parana(UTFPR) Grupo de Materials Polimericos e Compositos Universidade Estadual de Maringa(UEM)

Polysaccharide-based composite materials（beads） containing silver nanoparticles（AgNPs） were successfully *** beads acted as an efficient vehicle for Ag＊ *** promoted the AgNPs protection and inhibited their *** assays showed that the beads/AgNPs concentration can be modulated to deliver an amount of Ag＊ necessary for kill Escherichia coli cells.

关键词： N N N-Trimethyl chitosan Alginate Silver nanoparticles Antimicrobial activity Delivery

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Outstanding Impact Resistance of Post-Consumer HDPE/Multilayer Packaging Composites

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Materials Sciences and Applications 2017年第1期8卷 15-25页

作者： Silvia Luciana Favaro Antonio Guilherme Basso Pereira Janaina Rodrigues Fernandes Orlando Baron cleiser Thiago Pereira da Silva Murilo Pereira Moisés Eduardo Radovanovic Departamento de Engenharia Mecâ nica Universidade Estadual de Maring&aacute Maring&aacute PR Brazil Universidade Tecnoló gica Federal do Paraná (UTFPR) Dois Vizinhos PR Brazil Departamento de Quí mica Universidade Estadual de Maring&aacute Maring&aacute PR Brazil Universidade Tecnoló gica Federal do Paraná (UTFPR) Apucarana PR Brazil

New recycling alternative for multilayer films was successfully presented. Food packaging formed from different materials is difficult to recycle. The use of aluminum, glass, paper, paints, varnishes, and other materials in the rolling processes from plastic packaging is intended to optimize the efficiency of packaging. Nevertheless, these materials prevent the recycling of packaging because they become contaminants to the recycling process. Food multilayered packaging containing poly (ethylene terephthalate) PET, poly (ethylene) PE and aluminum was used as filler in the preparation of composites with post-consumer high density polyethylene matrix. Composites containing up to 50 wt% of filler were feasible to prepare, allowing the obtention of a material with varied mechanical and thermal properties. This feature allows the preparation of composites suitable for specific application. The addition of multilayer matter in the polyethylene matrix provided a material with excellent mechanical properties such as higher tensile impact strength (148 J/m) and elasticity (350 MPa) as compared to pure polyethylene (40 J/m and 450 MPa).

关键词： Multilayer Packaging Polymer-Matrix Composites Recycling Mechanical Properties

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Unprecedented Low-Cost Hybrid Material for CO2 and CH4 Separation

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Journal of Chemistry and Chemical Engineering 2015年第5期9卷 318-323页

作者： Murilo Pereira Moises Joziane Gimenes Meneguin cleiser Thiago Pereira da Silva Vicente Lira Kupfer Pedro Augusto Arroyo Andrelson Wellington Rinaldi Emerson Marcelo Girotto Silvia Luciana Favaro Eduardo Radovanovic Department of Chemical State University of Maring6 Maringa 87020-900 Brazil Department of Chemical Engineering State University of Maringa Maring6 87020-900 Brazil Department of Mechanical Engineering State University of Maringa Maring6 87020-900 Brazil Federal University Technological of Parana Apucarana 86812-460 Brazil

The zeolite synthesis using waste as silicon source is a promising low-cost process. Sugarcane bagasse ash is a hazardous solid waste generated in large amounts in the sugar industry. Thus, development of new procedures for its productive reuse is relevant. Therefore, this waste was used to prepare a new ZCNT （zeolite/carbon nanotube material）. In this work, ZCNT was applied in a CO2/CH4 separation. The adsorption took place at 303 K under pressure of 0.1 until 20 bar and the data were fitted by Langmuir, Toth and Freundlich equations. The adsorbed amount at 20 bar found was 4.7 mmol of CO2/g and 4.1 mmol of CH4/g; at 3 bar the adsorbed amount was 4.1 mmol of COJg and 1.2 mmol of CHa/g. This result indicates that ZCNT has potential application in COJCH4 separation at low pressures.

关键词： Gas adsorption biogas purification porous materials.

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