Effect of CaCO 3 addition on the performance of lightweight Al 2 O 3 ‐MgAl 2 O 4 refractories with gradient density

2022 ◽  
Author(s):  
Kui Gao ◽  
HongFeng Yin ◽  
YaLou Xin ◽  
Yun Tang ◽  
HuDie Yuan ◽  
...  
Keyword(s):  
Gradient Density

scholarly journals Mitochondrial Localization of the Yeast Forkhead Factor Hcm1

2020 ◽  
Vol 21 (24) ◽  
pp. 9574
Author(s):  
María José Rodríguez Colman ◽  
Joaquim Ros ◽  
Elisa Cabiscol
Keyword(s):  
Transcription Factor ◽  
Transcriptional Activity ◽  
Spindle Pole ◽  
Respiratory Metabolism ◽  
Mitochondrial Localization ◽  
Transcription Factor Family ◽  
Forkhead Transcription Factor ◽  
Mitochondrial Transcription Factor ◽  
Gradient Density

Hcm1 is a member of the forkhead transcription factor family involved in segregation, spindle pole dynamics, and budding in Saccharomyces cerevisiae. Our group described the role of Hcm1 in mitochondrial biogenesis and stress resistance, and in the cellular adaptation to mitochondrial respiratory metabolism when nutrients decrease. Regulation of Hcm1 activity occurs at the protein level, subcellular localization, and transcriptional activity. Here we report that the amount of protein increased in the G1/S transition phase when the factor accumulated in the nucleus. In the G2/M phases, the Hcm1 amount decreased, and it was translocated outside the nucleus with a network-like localization. Preparation of highly purified mitochondria by a sucrose gradient density demonstrated that Hcm1 colocalized with mitochondrial markers, inducing expression of COX1, a mitochondrial encoded subunit of cytochrome oxidase, in the G2/M phases. Taken together, these results show a new localization of Hcm1 and suggest that it acts as a mitochondrial transcription factor regulating the metabolism of this organelle.

Deformation Behaviour of Single and Gradient Density Natural Rubber Foams

2019 ◽  
Vol 17 ◽  
pp. 1133-1142
Author(s):  
M.S.F. Samsudin ◽  
Z .M. Ariff ◽  
A. Ariffin
Keyword(s):  
Natural Rubber ◽  
Deformation Behaviour ◽  
Gradient Density

Shape and size separation of gold nanoparticles using glucose gradient density

2012 ◽  
Author(s):  
Marta Gordel ◽  
Joanna Olesiak-Banska ◽  
Katarzyna Matczyszyn ◽  
Claude Nogues ◽  
K. Pawlik ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Size Separation ◽  
Gradient Density ◽  
Shape And Size

scholarly journals Relative Labeling of Leukocytes, Erythrocytes and Platelets in Human Blood by 51Chromium

Blood ◽  
1970 ◽  
Vol 36 (2) ◽  
pp. 250-253 ◽  
Author(s):  
HARMON J. EYRE ◽  
PETER J. ROSEN ◽  
SEYMOUR PERRY
Keyword(s):  
Human Blood ◽  
Peripheral Blood ◽  
Blood Cells ◽  
Sucrose Gradient ◽  
Peripheral Blood Cells ◽  
Density Separation ◽  
Gradient Density ◽  
A Cell

Abstract Relative labeling of peripheral blood cells by 51-chromium was determined by means of a sucrose gradient density separation technic and confirmed by radioautography. Large lymphocytes and monocytes were found to be more heavily labeled than small lymphocytes and granulocytes. Erythrocytes and platelets were relatively lightly labeled. These differences in labeling are important in evaluating data obtained when 51-chromium is utilized as a cell label for the study of leukocyte kinetics.

A Liquid Gradient Density Screening System for Soil Sample Identification Studies Using a Minicomputer

1979 ◽  
Vol 24 (2) ◽  
pp. 10860J ◽  
Author(s):  
D. N. Harbin ◽  
E. L. Covey ◽  
G. R. Howell ◽  
J. W. Lott ◽  
P. F. Lott
Keyword(s):  
Soil Sample ◽  
Screening System ◽  
Gradient Density ◽  
Sample Identification

Probing the thermal collapse of PNIPAM grafts by quantitative in situ ellipsometry

2013 ◽  
Vol 1544 ◽  
Author(s):  
E.S. Kooij ◽  
X.F. Sui ◽  
M.A. Hempenius ◽  
H.J.W. Zandvliet ◽  
G.J. Vancso
Keyword(s):  
Density Profile ◽  
Spectroscopic Ellipsometry ◽  
Quantitative Description ◽  
Solution Temperature ◽  
Thickness Variation ◽  
Dense Layer ◽  
Chain Segment ◽  
Critical Solution Temperature ◽  
Gradient Density

ABSTRACTWe demonstrate the potential of spectroscopic ellipsometry for the investigation of the chain segment density profile and layer thickness during the temperature-induced, reversible collapse−expansion transition of poly(N-isopropylacrylamide) (PNIPAM) grafted layers with variable grafting densities in aqueous systems. To obtain a quantitative description of the thickness of our swollen PNIPAM layers, various models were implemented to fit the ellipsometric data. From the ellipsometry results, the density and thickness variation accompanying the collapse transition across the lower critical solution temperature (LCST) was characterized. The collapse can be adequately explained by considering the PNIPAM film to consist of two layers: (i) a dense layer near the surface and (ii) a more diluted layer with a gradient density profile on the side of the film exposed to the solvent.

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