scholarly journals Observation of a new high-β and high-density state of a magnetospheric plasma in RT-1

2014 ◽  
Vol 21 (8) ◽  
pp. 082511 ◽  
Author(s):  
H. Saitoh ◽  
Y. Yano ◽  
Z. Yoshida ◽  
M. Nishiura ◽  
J. Morikawa ◽  
...  
Keyword(s):  
High Density ◽  
Magnetospheric Plasma ◽  
Density State

High density state of two-color lattice QCD

2004 ◽  
Vol 129-130 ◽  
pp. 551-553
Author(s):  
Shin Muroya ◽  
Atsushi Nakamura ◽  
Chiho Nonaka
Keyword(s):  
Lattice Qcd ◽  
High Density ◽  
Density State

scholarly journals Color SU(2) Lattice QCD High Density State

2004 ◽  
Vol 153 ◽  
pp. 51-59 ◽  
Author(s):  
Shin Muroya ◽  
Atsushi Nakamura ◽  
Chiho Nonaka
Keyword(s):  
Lattice Qcd ◽  
High Density ◽  
Density State

scholarly journals X-ray studies of the transformation from high- to low-density amorphous water

2019 ◽  
Vol 377 (2146) ◽  
pp. 20180164 ◽  
Author(s):  
Daniel Mariedahl ◽  
Fivos Perakis ◽  
Alexander Späh ◽  
Harshad Pathak ◽  
Kyung Hwan Kim ◽  
...  
Keyword(s):  
Ambient Pressure ◽  
Structural Evolution ◽  
High Energy ◽  
Real Space ◽  
High Density ◽  
Low Density ◽  
X Ray ◽  
Amorphous Ice ◽  
Density State ◽  
Amorphous States

Here we report about the structural evolution during the conversion from high-density amorphous ices at ambient pressure to the low-density state. Using high-energy X-ray diffraction, we have monitored the transformation by following in reciprocal space the structure factor S OO ( Q ) and derived in real space the pair distribution function g OO ( r ). Heating equilibrated high-density amorphous ice (eHDA) at a fast rate (4 K min –1 ), the transition to the low-density form occurs very rapidly, while domains of both high- and low-density coexist. On the other hand, the transition in the case of unannealed HDA (uHDA) and very-high-density amorphous ice is more complex and of continuous nature. The direct comparison of eHDA and uHDA indicates that the molecular structure of uHDA contains a larger amount of tetrahedral motives. The different crystallization behaviour of the derived low-density amorphous states is interpreted as emanating from increased tetrahedral coordination present in uHDA. This article is part of the theme issue ‘The physics and chemistry of ice: scaffolding across scales, from the viability of life to the formation of planets'.

scholarly journals Production of a high‐density state‐selected metastable neon beam

1992 ◽  
Vol 63 (1) ◽  
pp. 163-165 ◽  
Author(s):  
J. A. Brand ◽  
J. E. Furst ◽  
T. J. Gay ◽  
L. D. Schearer
Keyword(s):  
High Density ◽  
Density State

scholarly journals Serum factors alter the extent of dephosphorylation of ligands endocytosed via the mannose 6-phosphate/insulin-like growth factor II receptor.

1989 ◽  
Vol 109 (3) ◽  
pp. 1037-1046 ◽  
Author(s):  
R Einstein ◽  
C A Gabel
Keyword(s):  
Growth Factor ◽  
High Density ◽  
Low Density ◽  
Insulin Like Growth Factor ◽  
Acid Hydrolases ◽  
Serum Factors ◽  
Serum Free ◽  
L Cells ◽  
Density State ◽  
Mannose 6 Phosphate

Mouse L-cells that contain the cation-independent (CI) mannose 6-phosphate (Man 6-P)/insulin-like growth factor (IGF) II receptor endocytose acid hydrolases and deliver these enzymes to lysosomes. The postendocytic loss of the Man 6-P recognition marker from the cell-associated acid hydrolases was assessed by CI-Man 6-P receptor affinity chromatography. 125I-labeled acid hydrolases internalized by L-cells grown at high density were delivered to lysosomes but were not dephosphorylated. In contrast, the same 125I-labeled hydrolases internalized by L-cells maintained at low density were delivered to lysosomes and were extensively dephosphorylated. The dephosphorylation at low density required 5 h for completion suggesting that the phosphatase responsible for the dephosphorylation is located within the lysosomal compartment. Transition from the high to low density state was rapid and was not inhibited by cycloheximide. Medium substitution experiments indicated that serum factors were necessary to maintain the L-cells in the dephosphorylation-competent (low density) state, and that serum-free conditions led to a dephosphorylation-incompetent (high density) state. Addition of IGF II to cells in serum-free medium allowed acid hydrolases subsequently introduced by endocytosis to be dephosphorylated. The results indicate that the removal of the Man 6-P recognition marker from endocytosed acid hydrolases is regulated by serum factors in the growth medium, including IGF II.

scholarly journals Induction of Terminal Differentiation in Epithelial Cells Requires Polymerization of Hensin by Galectin 3

2000 ◽  
Vol 151 (6) ◽  
pp. 1235-1246 ◽  
Author(s):  
Chinami Hikita ◽  
Soundarapandian Vijayakumar ◽  
Jiro Takito ◽  
Hediyet Erdjument-Bromage ◽  
Paul Tempst ◽  
...  
Keyword(s):  
Extracellular Matrix ◽  
Terminal Differentiation ◽  
High Density ◽  
Seeding Density ◽  
Epithelial Cell Line ◽  
Low Density ◽  
Membrane Structures ◽  
Density State ◽  
Galectin 3

During terminal differentiation, epithelia become columnar and develop specialized apical membrane structures (microvilli) and functions (regulated endocytosis and exocytosis). Using a clonal intercalated epithelial cell line, we found that high seeding density induced these characteristics, whereas low density seeding maintained a protoepithelial state. When cells were plated at low density, but on the extracellular matrix of high density cells, they converted to the more differentiated phenotype. The extracellular matrix (ECM) protein responsible for this activity was purified and found to be a large 230-kD protein, which we termed hensin. High density seeding caused hensin to be polymerized and deposited in the extracellular matrix, and only this form of hensin was able to induce terminal differentiation. Antibodies to hensin blocked the change in phenotype. However, its purification to homogeneity resulted in loss of activity, suggesting that an additional protein might be necessary for induction of terminal differentiation. Here, we found that a 29-kD protein specifically associates with hensin in the ECM. Addition of purified p29 restored the activity of homogenously purified hensin. Mass fingerprinting identified p29 as galectin 3. Purified recombinant galectin 3 was able to bind to hensin and to polymerize it in vitro. Seeding cells at high density induced secretion of galectin 3 into the ECM where it bundled hensin. Hence, the high density state causes a secretion of a protein that acts on another ECM protein to allow the new complex to signal the cell to change its phenotype. This is a new mechanism of inside-out signaling.

Planar defects in ordered (Ga,In)P

1988 ◽  
Vol 46 ◽  
pp. 902-903
Author(s):  
S. McKernan ◽  
C. B. Carter ◽  
D. Bour ◽  
J. R. Shealy
Keyword(s):  
Electron Diffraction ◽  
Vapor Phase ◽  
Growth Direction ◽  
High Density ◽  
Ordered Structure ◽  
Planar Defects ◽  
Diffraction Patterns ◽  
Ternary Semiconductors ◽  
Anion Species ◽  
Metallic Vapor

The growth of ternary III-V semiconductors by organo-metallic vapor phase epitaxy (OMVPE) is widely practiced. It has been generally assumed that the resulting structure is the same as that of the corresponding binary semiconductors, but with the two different cation or anion species randomly distributed on their appropriate sublattice sites. Recently several different ternary semiconductors including AlxGa1-xAs, Gaxln-1-xAs and Gaxln1-xP1-6 have been observed in ordered states. A common feature of these ordered compounds is that they contain a relatively high density of defects. This is evident in electron diffraction patterns from these materials where streaks, which are typically parallel to the growth direction, are associated with the extra reflections arising from the ordering. However, where the (Ga,ln)P epilayer is reasonably well ordered the streaking is extremely faint, and the intensity of the ordered spot at 1/2(111) is much greater than that at 1/2(111). In these cases it is possible to image relatively clearly many of the defects found in the ordered structure.

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