scholarly journals The magnetic reversal characteristics of 32-bit composite element magnetic barcodes

2019 ◽  
Vol 115 (16) ◽  
pp. 162404
Author(s):  
P. J. Newton ◽  
L. De Los Santos Valladares ◽  
R. Celis Rojas ◽  
C. H. W. Barnes
Keyword(s):  
Magnetic Reversal ◽  
Composite Element

scholarly journals Magnetic reversal rate and global sea level trends

Nature ◽  
1988 ◽  
Vol 336 (6197) ◽  
pp. 317-317 ◽  
Author(s):  
M. R. RAMPINO
Keyword(s):  
Sea Level ◽  
Reversal Rate ◽  
Magnetic Reversal ◽  
Global Sea Level

Magnetic Reversal Mechanisms in Spin Valves with Pico-Scale Antiferromagnetic Layers

2006 ◽  
Author(s):  
S. Moyerman ◽  
J. Borchers ◽  
W. Gannett ◽  
M. Doucet ◽  
P. Sparks ◽  
...  
Keyword(s):  
Spin Valves ◽  
Magnetic Reversal

scholarly journals An Essential Role of the CAAT/Enhancer Binding Protein-α in the Vitamin D-Induced Expression of the Human Steroid/Bile Acid-Sulfotransferase (SULT2A1)

2006 ◽  
Vol 20 (4) ◽  
pp. 795-808 ◽  
Author(s):  
Chung S. Song ◽  
Ibtissam Echchgadda ◽  
Young-Kyo Seo ◽  
Taesung Oh ◽  
Soyoung Kim ◽  
...  
Keyword(s):  
Vitamin D ◽  
Binding Site ◽  
Essential Role ◽  
Binding Protein ◽  
Water Soluble ◽  
Induced Expression ◽  
Composite Element ◽  
Deoxyribonuclease I ◽  
Enhancer Binding Protein

Abstract The vitamin D receptor (VDR) regulates steroid and drug metabolism by inducing the genes encoding phase I and phase II enzymes. SULT2A1 is a liver- and intestine-expressed sulfo-conjugating enzyme that converts the alcohol-OH of neutral steroids, bile acids, and drugs to water-soluble sulfated metabolites. 1α,25-Dihydroxyvitamin D3 [1,25-(OH)2D3] induces SULT2A1 gene transcription after the recruitment of VDR to the vitamin D-responsive chromatin region of SULT2A1. A composite element in human SULT2A1 directs the 1,25-(OH)2D3-mediated induction of natural and heterologous promoters. This element combines a VDR/retinoid X receptor-α-binding site [vitamin D response element (VDRE)], which is an imperfect inverted repeat 2 of AGCTCA, and a CAAT/enhancer binding protein (C/EBP)-binding site located 9 bp downstream to VDRE. The binding sites were identified by EMSA, antibody supershift, and deoxyribonuclease I footprinting. C/EBP-α at the composite element plays an essential role in the VDR regulation of SULT2A1, because 1) induction was lost for promoters with inactivating mutations at the VDRE or C/EBP element; 2) SULT2A1 induction by 1,25-(OH)2D3 in C/EBP-α-deficient cells required the expression of cotransfected C/EBP-α; and 3) C/EBP-β did not substitute for C/EBP-α in this regulation. VDR and C/EBP-α were recruited concurrently to the composite element along with the coactivators p300, steroid receptor coactivator 1 (SRC-1), and SRC-2, but not SRC-3. VDR and C/EBP-α associated endogenously as a DNA-dependent, coimmunoprecipitable complex, which was detected at a markedly higher level in 1,25-(OH)2D3-treated cells. These results provide the first example of the essential role of the interaction in cis between C/EBP-α and VDR in directing 1,25-(OH)2D3-induced expression of a VDR target gene.

scholarly journals Magnetic reversal dynamics of a quantum system on a picosecond timescale

2015 ◽  
Vol 6 ◽  
pp. 1946-1956 ◽  
Author(s):  
Nikolay V Klenov ◽  
Alexey V Kuznetsov ◽  
Igor I Soloviev ◽  
Sergey V Bakurskiy ◽  
Olga V Tikhonova
Keyword(s):  
Magnetic Moment ◽  
Magnetization Reversal ◽  
Quantum Mechanical ◽  
Magnetic Reversal ◽  
Level System ◽  
Macroscopic Theory ◽  
Atomic Systems ◽  
Quantum Mechanical Description ◽  
Classical Behavior ◽  
Flux Qubit

We present our approach for a consistent, fully quantum mechanical description of the magnetization reversal process in natural and artificial atomic systems by means of short magnetic pulses. In terms of the simplest model of a two-level system with a magnetic moment, we analyze the possibility of a fast magnetization reversal on the picosecond timescale induced by oscillating or short unipolar magnetic pulses. We demonstrate the possibility of selective magnetization reversal of a superconducting flux qubit using a single flux quantum-based pulse and suggest a promising, rapid Λ-scheme for resonant implementation of this process. In addition, the magnetization reversal treatment is fulfilled within the framework of the macroscopic theory of the magnetic moment, which allows for the comparison and explanation of the quantum and classical behavior.

scholarly journals Magnetic reversal of ion beam patterned Co/Pt multilayers

2003 ◽  
Vol 48 (7) ◽  
pp. 949-954 ◽  
Author(s):  
Greg J. Kusinski ◽  
Kannan M. Krishnan ◽  
Gregory Denbeaux ◽  
Gareth Thomas
Keyword(s):  
Ion Beam ◽  
Magnetic Reversal
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