scholarly journals Diffusion, Cell Mobility, and Bandlimited Functions

1984 ◽  
Vol 44 (6) ◽  
pp. 1232-1245 ◽  
Author(s):  
H. J. Landau ◽  
B. F. Logan ◽  
L. A. Shepp ◽  
N. Bauman
Keyword(s):  
Diffusion Cell ◽  
Bandlimited Functions ◽  
Cell Mobility

Beam Management in mmWave 5G NR: an Intra-Cell Mobility Study

2021 ◽  
Author(s):  
Filipa Fernandes ◽  
Christian Rom ◽  
Johannes Harrebek ◽  
Gilberto Berardinelli
Keyword(s):  
Cell Mobility ◽  
Mobility Study

Measurement of the Effective Diffusivity in Porous Media by the Diffusion Cell Method

1996 ◽  
Vol 38 (2) ◽  
pp. 189-247 ◽  
Author(s):  
IN-SOO PARK∗ ◽  
DUONG D. DO ◽  
ALIRIO E. RODRIGUES
Keyword(s):  
Porous Media ◽  
Effective Diffusivity ◽  
Diffusion Cell ◽  
Cell Method

scholarly journals Ubl4A is required for insulin-induced Akt plasma membrane translocation through promotion of Arp2/3-dependent actin branching

2015 ◽  
Vol 112 (31) ◽  
pp. 9644-9649 ◽  
Author(s):  
Yu Zhao ◽  
Yuting Lin ◽  
Honghong Zhang ◽  
Adriana Mañas ◽  
Wenwen Tang ◽  
...  
Keyword(s):  
Plasma Membrane ◽  
Glycogen Synthesis ◽  
Membrane Translocation ◽  
Insulin Stimulation ◽  
Serine Threonine Kinase ◽  
Newborn Mice ◽  
Threonine Kinase ◽  
Cell Mobility ◽  
Close Proximity ◽  
Extracellular Stimuli

The serine-threonine kinase Akt is a key regulator of cell proliferation and survival, glucose metabolism, cell mobility, and tumorigenesis. Activation of Akt by extracellular stimuli such as insulin centers on the interaction of Akt with PIP3 on the plasma membrane, where it is subsequently phosphorylated and activated by upstream protein kinases. However, it is not known how Akt is recruited to the plasma membrane upon stimulation. Here we report that ubiquitin-like protein 4A (Ubl4A) plays a crucial role in insulin-induced Akt plasma membrane translocation. Ubl4A knockout newborn mice have defective Akt-dependent glycogen synthesis and increased neonatal mortality. Loss of Ubl4A results in the impairment of insulin-induced Akt translocation to the plasma membrane and activation. Akt binds actin-filaments and colocalizes with actin-related protein 2 and 3 (Arp2/3) complex in the membrane ruffles and lamellipodia. Ubl4A directly interacts with Arp2/3 to accelerate actin branching and networking, allowing Akt to be in close proximity to the plasma membrane for activation upon insulin stimulation. Our finding reveals a new mechanism by which Akt is recruited to the plasma membrane for activation, thereby providing a missing link in Akt signaling.

Diffusion of Methane and Chloromethanes in Air

1971 ◽  
Vol 49 (1) ◽  
pp. 74-77 ◽  
Author(s):  
M. Cowie ◽  
Harry Watts
Keyword(s):  
Carbon Tetrachloride ◽  
Diffusion Coefficients ◽  
Methylene Chloride ◽  
Methyl Chloride ◽  
Diffusion Cell ◽  
Infrared Spectrophotometry ◽  
Gaseous Diffusion ◽  
Simple Diffusion ◽  
Concentration Changes

The binary gaseous diffusion coefficients of air with methane, methyl chloride, methylene chloride, chloroform, and carbon tetrachloride at 298.2 °K and 1 atm have been determined. A simple diffusion cell was used, in which concentration changes of the diffusing gas were followed by infrared spectrophotometry.

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