On the probable double-loop structure of the flare-like disc object

2005 ◽  
pp. 260-260
Author(s):  
T. P. Nikiforova ◽  
A. M. Sobolev
Keyword(s):  
Double Loop ◽  
Loop Structure

Optimal regenerative PN code tracking based on non‐commensurate sampling and double‐loop structure

2019 ◽  
Vol 55 (23) ◽  
pp. 1254-1255 ◽  
Author(s):  
Xiaojun Jin ◽  
Wei Zhang ◽  
Shiming Mo ◽  
Zhaobin Xu ◽  
Chaojie Zhang ◽  
...  
Keyword(s):  
Double Loop ◽  
Loop Structure ◽  
Code Tracking

Characteristics of Josephson Junction Networks –State Diagram Calculations and Experiments of a Circuit in a Double Loop Structure with Five Dayem Microbridges–

1982 ◽  
Vol 21 (Part 1, No. 3) ◽  
pp. 490-496 ◽  
Author(s):  
Takafumi Aomine ◽  
Mutsuo Hidaka ◽  
Shigeru Kusunoki ◽  
Kazuo Miyake ◽  
Kazuhiro Matsuo ◽  
...  
Keyword(s):  
Josephson Junction ◽  
State Diagram ◽  
Double Loop ◽  
Loop Structure

UGV Robust Path Following Control under Double Loop Structure with μ Synthesis

ROBOT ◽  
2013 ◽  
Vol 35 (4) ◽  
pp. 417 ◽  
Author(s):  
Yan SONG ◽  
Pan ZHAO ◽  
Xiang TAO ◽  
Bichun LI ◽  
Huawei LIANG ◽  
...  
Keyword(s):  
Path Following ◽  
Double Loop ◽  
Loop Structure ◽  
Path Following Control

The indirect shared steering control under double loop structure of driver and automation

2020 ◽  
pp. 1-14 ◽  
Author(s):  
Yantao Tian ◽  
Yanbo Zhao ◽  
Yiran Shi ◽  
Xuanhao Cao ◽  
Ding-Li Yu
Keyword(s):  
Double Loop ◽  
Loop Structure ◽  
Steering Control

scholarly journals Cap-independent translation of human SP-A 5′-UTR variants: a double-loop structure andcis-element contribution

2009 ◽  
Vol 296 (4) ◽  
pp. L635-L647 ◽  
Author(s):  
Guirong Wang ◽  
Xiaoxuan Guo ◽  
Patricia Silveyra ◽  
Scot R. Kimball ◽  
Joanna Floros
Keyword(s):  
Splice Variants ◽  
Protein A ◽  
Firefly Luciferase ◽  
Regulatory Elements ◽  
Negative Control ◽  
Double Loop ◽  
Translation Efficiency ◽  
Loop Structure ◽  
Entry Site ◽  
Independent Translation

Human surfactant protein A (hSP-A), a molecule of innate immunity and surfactant-related functions, consists of two functional genes, SP-A1 and SP-A2. SP-A expression is regulated by several factors including environmental stressors. SP-A1 and SP-A2 5′-untranslated region (5′-UTR) splice variants have a differential impact on translation efficiency and mRNA stability. To study whether these variants mediate internal ribosome entry site (IRES) activity (i.e., cap-independent translation), we performed transient transfection experiments in H441 cells with constructs containing one SP-A1 (A′D′, AB′D′, or A′CD′) or SP-A2 (ABD) 5′-UTR splice variant between the Renilla and firefly luciferase genes of a bicistronic reporter vector. We found that 1) variants A′D′, ABD, and AB′D′ exhibit significantly higher IRES activities than negative control (no SP-A 5′-UTR) and A′CD′ has no activity; the order of highest IRES activity was ABD > A′D′ > AB′D; 2) IRES activity of ABD significantly increased in response to diesel particulate matter (20 μg/ml) but not in response to ozone (1 ppm for 1 h); 3) deletion mutants of ABD revealed regulatory elements associated with IRES activity; one at the end of exon A attenuated activity, whereas a region containing a short adenosine-rich motif in the second half of exon B and the start of exon D enhanced activity; 4) elimination of a predicted double-loop structure or increase in free energy significantly reduced IRES activity; 5) elimination of one or both double-loop structures in A′D′ did not affect cap-dependent translation activity. Thus several factors, including cis-elements and secondary structure type and stability, are required for hSP-A 5′-UTR variant-mediated cap-independent translation.

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