Subcritical crack growth models for SiC fiber in air and steam: Low temperature data and possible effects of residual stress

Autor: Randall S. Hay, Marina Ruggles-Wrenn, Scott J. Robertson, Benjamin R. Steffens, Matthew W. Piper, Theodore R. Shillig, Ronald K. Mitchell, Brian M. Kroeger, Logan M. Gumucio, Caleigh M. Nelson, Richard J. Reinink

Publikováno v: Open Ceramics, Vol 15, Iss , Pp 100372- (2023)

Failure times (tf) and brittle creep strain rates (ἑ) for static fatigue of Hi-Nicalon™-S fiber tows were measured at 500 and 600 °C. These measurements added to those done previously at 700–1100 °C. Subcritical crack growth (SCG) based model

Externí odkaz: https://doaj.org/article/1e3f1ceea6684c92a9e0179ace4cf4a0

PHB Biosynthesis Counteracts Redox Stress in Herbaspirillum seropedicae

Autor: Marcelo B. Batista, Cícero S. Teixeira, Michelle Z. T. Sfeir, Luis P. S. Alves, Glaucio Valdameri, Fabio de Oliveira Pedrosa, Guilherme L. Sassaki, Maria B. R. Steffens, Emanuel M. de Souza, Ray Dixon, Marcelo Müller-Santos

Publikováno v: Frontiers in Microbiology, Vol 9 (2018)

The ability of bacteria to produce polyhydroxyalkanoates such as poly(3-hydroxybutyrate) (PHB) enables provision of a carbon storage molecule that can be mobilized under demanding physiological conditions. However, the precise function of PHB in cell

Externí odkaz: https://doaj.org/article/3309880a879d489fbb317bf405da6e80

Structural and Functional Studies of H. seropedicae RecA Protein - Insights into the Polymerization of RecA Protein as Nucleoprotein Filament.

Autor: Wellington C Leite, Carolina W Galvão, Sérgio C Saab, Jorge Iulek, Rafael M Etto, Maria B R Steffens, Sindhu Chitteni-Pattu, Tyler Stanage, James L Keck, Michael M Cox

Publikováno v: PLoS ONE, Vol 11, Iss 7, p e0159871 (2016)

The bacterial RecA protein plays a role in the complex system of DNA damage repair. Here, we report the functional and structural characterization of the Herbaspirillum seropedicae RecA protein (HsRecA). HsRecA protein is more efficient at displacing

Externí odkaz: https://doaj.org/article/66d2784d19a34d5ab6b29da3a74a27b7

NAD+ biosynthesis in bacteria is controlled by global carbon/nitrogen levels via PII signaling

Autor: Gustavo Antonio De Souza, Erick Parize, Karl Forchhammer, Fernando Hayashi Sant'Anna, Edileusa C. M. Gerhardt, Adrian Richard Schenberger Santos, Maria B. R. Steffens, Fábio O. Pedrosa, Emanuel Maltempi de Souza, Leda S. Chubatsu, Luciane Maria Pereira Passaglia, Luciano F. Huergo

Publikováno v: Journal of Biological Chemistry. 295:6165-6176

NAD+ is a central metabolite participating in core metabolic redox reactions. The prokaryotic NAD synthetase enzyme NadE catalyzes the last step of NAD+ biosynthesis, converting nicotinic acid adenine dinucleotide (NaAD) to NAD+ Some members of the N

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eca83cb04b7cb0ff184e08cbb52e3e00
https://doi.org/10.1074/jbc.ra120.012793

[Quantificação de folículos multiócitos em ovários de cadelas]

Autor: A.P. Zoppei, A. Pinto Neto, J. Cattelam, A.C. Martinez, C.K.G. Trenkel, R. Steffens, L. Gruchouskei

Publikováno v: Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Volume: 73, Issue: 6, Pages: 1269-1277, Published: 20 DEC 2021
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Vol 73, Iss 6, Pp 1269-1277 (2021)
Arquivo Brasileiro de Medicina Veterinária e Zootecnia v.73 n.6 2021
Arquivo brasileiro de medicina veterinária e zootecnia
Universidade Federal de Minas Gerais (UFMG)
instacron:UFMG

The objective of this study was to quantify the number and frequency of monocyte (MnOF) and multi-oocyte (MtOF) follicles in ovaries of bitches subjected to ovary salpingohysterectomy (OSH). Right and left ovaries of 38 bitches were collected after O

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f20cd8fca442a8606a30a82c14ac68a7
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352021000701269&lng=en&tlng=en