Zobrazeno 1 - 10
of 569
pro vyhledávání: '"Roberto Christ"'
Autor:
Leonardo Quintana Soares Lopes, Rodrigo de Almeida Vaucher, Janice Luehring Giongo, Patrícia Kolling Marquezan, Roberto Christ Vianna Santos
Publikováno v:
Bioscience Journal, Vol 40 (2024)
This study aimed to prepare and apply nanocapsules containing glycerol monolaurate for eradicating Streptococcus mutans biofilms. The interfacial deposition method of the preformed polymer synthesized the nanocapsules characterized for mean diameter,
Externí odkaz:
https://doaj.org/article/1f301b864b5d496abe9d03132e6ee38f
Autor:
Leonardo Quintana Soares Lopes, Patrícia Kolling Marquezan, Sergio Roberto Mortari, Fernando Machado Machado, Tiago Moreno Volkmer, Roberto Christ Vianna Santos
Publikováno v:
Bioscience Journal, Vol 40 (2024)
Multi-walled carbon nanotubes (MWCNTs) were purified and unpurified in this study to obtain hybrid materials with improved activity. The production stage comprised a chemical purification of the produced sample. Raman spectroscopy analyzed the struct
Externí odkaz:
https://doaj.org/article/a9bf7dfb43e74f818aab53dd33f3f540
Autor:
Roberto Christ, Hinoel Z. Ehrenbring, Fernanda Pacheco, Diego Schneider, Bernardo F. Tutikian, Gian de Fraga Moreira, Leandro Wegher, Oleg Beliaev
Publikováno v:
Revista ALCONPAT, Vol 14, Iss 3 (2024)
The objective of this study is to evaluate the mechanical behavior of GRFP in massive concrete slabs. The use of glass fiber reinforced polymer (GFRP) rebars in construction design has been an alternative technique to provide more durable structures.
Externí odkaz:
https://doaj.org/article/84331baa444d4d44bcef51b53b273b37
Autor:
Camila Marina Verdi, Matheus Dellaméa Baldissera, Vanessa Schopf Machado, Carine Freitas Milarch, Eduardo Nascimento Correa de Andrade, Gabrielle Aguiar Dantas, Bernardo Baldisseroto, Roberto Christ Vianna Santos
Publikováno v:
The Microbe, Vol 5, Iss , Pp 100191- (2024)
The increase in bacterial resistance in animals and the buildup of antimicrobials in animal meat pose significant nutritional and economic challenges. Given this context, this study explored the potential of Gaultheria procumbens essential oil (GPEO)
Externí odkaz:
https://doaj.org/article/ae94c5efa0064f7183a51b12837bfce7
Autor:
Fernanda Pacheco, Hinoel Zamis Ehrenbring, Roberto Christ, Gian de Fraga Moreira, Henrique dos Santos Kramer, Bernardo Fonseca Tutikian
Publikováno v:
Revista IBRACON de Estruturas e Materiais, Vol 17, Iss 6 (2024)
Abstract The physical and chemical protection of steel reinforcement afforded by the cover is a consequence of the quality of the concrete and its thickness, with a long-term impact on durability and service life. This study proposed variations in co
Externí odkaz:
https://doaj.org/article/754ed943d3e34d028d552cfb12310bdd
Publikováno v:
Revista IBRACON de Estruturas e Materiais, Vol 17, Iss 5 (2024)
Abstract Ultra-high-performance concrete (UHPC) has exceptional mechanical properties at room temperature. However, there are no standardized thermal procedures proposed by ABNT NBR 15200 to characterize UHPC at high temperatures, such as in the case
Externí odkaz:
https://doaj.org/article/0bfce54753bb4ff3aaed56ddebd3e40b
Autor:
Leonardo Quintana Soares Lopes, Pedro Henrique Fortes Guerim, Roberto Christ Vianna Santos, Flavia Kolling Marquezan, Patrícia Kolling Marquezan
Publikováno v:
Bioscience Journal, Vol 39, Pp e39096-e39096 (2023)
Microorganisms such as Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus are frequently isolated in samples of urinary, blood, intestinal, and respiratory infections, among others. These bacteria are also associated with microbial b
Externí odkaz:
https://doaj.org/article/ee40f1ada9024ab1a6c6a60f7e90b826
Autor:
Roberto Christ, Lucas Rafael Lerner, Hinoel Z. Ehrenbring, Fernanda Pacheco, Fabricio L. Bolina, Giovana Poleto, Augusto Masiero Gil, Bernardo F. Tutikian
Publikováno v:
Buildings, Vol 13, Iss 9, p 2254 (2023)
Ultra-high-performance concrete (UHPC) is a material that has high compactness, low porosity, and high mechanical strength, with especially high tensile strength. Due to these characteristics, the behavior of the material when exposed to high tempera
Externí odkaz:
https://doaj.org/article/548a824387324972913c4ef5aba673e3
Autor:
Michel Murillo A, Aura Acosta P, Claudia Quesada Q, Valery Abisambra G, Bernardo F. Tutikian, Roberto Christ
Publikováno v:
Case Studies in Thermal Engineering, Vol 40, Iss , Pp 102550- (2022)
Sandwich panels are systems with structural functions that are used in the field of civil construction, currently, they are used in the construction of buildings and also as cladding for walls, ceilings, among others. This article shows the results o
Externí odkaz:
https://doaj.org/article/357917c760674513970fcced68a2dc90
Autor:
Ticiane da Rosa Pinheiro, Gabrielle Aguiar Dantas, Jean Lucas Gutknecht da Silva, Daniela Bitencourt Rosa Leal, Ricardo Barreto da Silva, Thiago Augusto de Lima Burgo, Roberto Christ Vianna Santos, Bernardo Almeida Iglesias
Publikováno v:
Pharmaceutics, Vol 15, Iss 5, p 1511 (2023)
Onychomycosis is a prevalent nail fungal infection, and Candida albicans is one of the most common microorganisms associated with it. One alternative therapy to the conventional treatment of onychomycosis is antimicrobial photoinactivation. This stud
Externí odkaz:
https://doaj.org/article/c25d52fe8d4540309179c89a24369307