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https://www.readbyqxmd.com/read/28195216/revealing-homogeneous-plastic-deformation-in-dendrite-reinforced-ti-based-metallic-glass-composites-under-tension
#1
F F Wu, J S Wei, K C Chan, S H Chen, R D Zhao, G A Zhang, X F Wu
The tensile plastic deformation of dendrite-reinforced Ti-based metallic glass composites (MGCs) was investigated. It was found that there is a critical normalized strain-hardening rate (NSHR) that determines the plastic stability of MGCs: if the NSHR is larger than the critical value, the plastic deformation of the MGCs will be stable, i.e. the necking and strain localization can be effectively suppressed, resulting in homogeneous plastic elongation. In addition, dendrite-reinforce MGCs are verified as being intrinsically ductile, and can be used as good coatings for improving the surface properties of pure titanium or titanium alloys...
February 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/25841003/nisin-h-is-a-new-nisin-variant-produced-by-the-gut-derived-strain-streptococcus-hyointestinalis-dpc6484
#2
Paula M O'Connor, Eileen F O'Shea, Caitriona M Guinane, Orla O'Sullivan, Paul D Cotter, R Paul Ross, Colin Hill
Accumulating evidence suggests that bacteriocin production represents a probiotic trait for intestinal strains to promote dominance, fight infection, and even signal the immune system. In this respect, in a previous study, we isolated from the porcine intestine a strain of Streptococcus hyointestinalis DPC6484 that displays antimicrobial activity against a wide range of Gram-positive bacteria and produces a bacteriocin with a mass of 3,453 Da. Interestingly, the strain was also found to be immune to a nisin-producing strain...
June 15, 2015: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/24030359/basic-fibroblast-growth-factor-expression-is-implicated-in-mesenchymal-stem-cells-response-to-light-induced-retinal-injury
#3
Wei Xu, Xiaoting Wang, Guoxing Xu, Jian Guo
Neurotrophic factors are involved in neuroprotection and its expression in mesenchymal stem cells (MSCs) may change during light-induced retinal injury. In this study, neurotrophic factor expression in MSCs was investigated after stimulation by supernatants of homogenized retina (SHR) from normal and light-injured rats. Conditioned media from control MSCs (CM-MSCs), MSCs stimulated by normal SHR (CM-NSHR), and MSCs stimulated by light-injured SHR (CM-ISHR) were examined regarding their ability to prevent degeneration of retinal explants...
November 2013: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/2029281/sinusoidal-fetal-heart-rate-pattern-during-labor
#4
C C Egley, W A Bowes, D Wagner
Of 1280 consecutive fetuses monitored internally with a scalp electrode for at least 10 minutes during labor, 54 (4.2%) demonstrated the sinusoidal heart rate (SHR) pattern. Seven of these demonstrated the SHR pattern for more than 90 minutes. In six of these seven cases, the SHR pattern occurred during oxytocin administration. The SHR group did not differ from the 1226 fetuses not demonstrating the SHR pattern (NSHR group) in Apgar scores, incidence of other fetal heart rate abnormalities, or passage of meconium...
May 1991: American Journal of Perinatology
https://www.readbyqxmd.com/read/1367329/transcriptional-organization-and-regulation-of-the-nosiheptide-resistance-gene-in-streptomyces-actuosus
#5
REVIEW
Y Li, D C Dosch, R H Woodman, H G Floss, W R Strohl
The nosiheptide resistance gene (nshR) and a putative regulatory gene (nshA) are found together on a 2326 bp BamHI-PstI DNA fragment isolated from Streptomyces actuosus ATCC 25421. The putative regulatory gene, nshA, situated upstream from the nosiheptide resistance gene in the 2326 bp DNA fragment, contains apparent DNA-binding and RNA-binding domains. Interruption of nshA in the chromosome of S. actuosus alters nosiheptide production, suggesting that nshA is involved in regulation of nosiheptide biosynthesis...
July 1991: Journal of Industrial Microbiology
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