Structural Consequence Operations and Logical Matrices Adequate for Them

2012 ◽  
pp. 163-175 ◽  
Author(s):  
Jan Zygmunt
PMLA ◽  
1975 ◽  
Vol 90 (3) ◽  
pp. 447-460
Author(s):  
Daniel J. Schneider

AbstractThe divided self in James’s fiction may be regarded as an inevitable structural consequence of James’s desire to dramatize the problem of the free spirit in an enslaving world. But the divided self required by art is not essentially different from the divided self known to psychology, and an understanding of the anxieties of that self, particularly of the “obsessive imagery” James uses to depict those anxieties, enriches our understanding of James’s work. The fear of a world that threatens one’s being issues in an elaborate development of an escape motif; of imagery of seizure by the eye and by the world of appearances; and of imagery of petrification, reflecting a dread of being turned into a mere tool or machine. James’s vision of “the great trap of life” permits him to come to terms with his own limitations and culminates in a searching philosophic examination of the problem of free will and determinism.


Studia Logica ◽  
1980 ◽  
Vol 39 (1) ◽  
pp. 19-43 ◽  
Author(s):  
Janusz Czelakowski

2013 ◽  
Vol 60 ◽  
pp. 149-162 ◽  
Author(s):  
Jung Min Sohn ◽  
Sang Jin Kim ◽  
Byoung Hoon Kim ◽  
Jeom Kee Paik

Author(s):  
Selvaraj Samuel ◽  
Mary Rajathei

Amino acid repeats play significant roles in the evolution of structure and function of many large proteins. Analysis of internal repeats of protein with known structure helps to understand the importance of repeats of the protein. A database IR-PDB for repeats in sequence of the proteins in the PDB has been developed for the analysis of impact of repeats in proteins. Using the state of the art repeat detection method RADAR, internal repeats in 148202 sequences out of 285714 sequences belonging to 115031 PDB structures were detected. The identified sequence repeats were annotated with secondary structural information with a view to analyze the structural consequence and conservation of the repeats. The tertiary structure of the repeats and their functional involvements can be found out through web links to PDB, PDBsum and Pfam. IR-PDB is systematically annotated for the the proteins in the PDB with sequence repeats and their structure with the possibility to access the dataset interactively through web services.


2014 ◽  
Vol 9 (5) ◽  
pp. 410-421 ◽  
Author(s):  
Naresh Kandakatla ◽  
Geetha Ramakrishnan ◽  
Rajasekhar Chekkara ◽  
Namachivayam Balakrishnan

Author(s):  
José Alberto Rodríguez-Velamazán ◽  
Laura Cañadillas-Delgado ◽  
Miguel Castro ◽  
Garry J. McIntyre ◽  
José Antonio Real

The effect of pressure (up to 0.17 GPa) on the spin-crossover compound {Fe(pmd)2[Ag(CN)2]2}n[orthorhombic isomer (II), pmd = pyrimidine] has been investigated by temperature- and pressure-dependent neutron Laue diffraction and magnetometry. The cooperative high-spin ↔ low-spin transition, centred atca180 K at ambient pressure, is shifted to higher temperatures as pressure is applied, showing a moderate sensitivity of the compound to pressure, since the spin transition is displaced byca140 K GPa−1. The space-group symmetry (orthorhombicPccn) remains unchanged over the pressure–temperature (P–T) range studied. The main structural consequence of the high-spin to low-spin transition is the contraction of the distorted octahedral [FeN6] chromophores, being more marked in the axial positions (occupied by the pmd units), than in the equatorial positions (occupied by four [Ag(CN)2]−bridging ligands).


1997 ◽  
Vol 04 (06) ◽  
pp. 1291-1295 ◽  
Author(s):  
M. ARNOLD ◽  
S. SOLOGUB ◽  
G. HUPFAUER ◽  
P. BAYER ◽  
W. FRIE ◽  
...  

We present a comparative low energy electron diffraction (LEED) structure analysis for the clean as well as hydrogen-saturated (110) surfaces of tungsten and molybdenum. Both clean surfaces exhibit some contraction of the first interlayer spacing, i.e. -3.1% for W and -4.0% for Mo, whereas deeper layer distances remain practically bulklike. The only structural consequence of a hydrogen monolayer adsorbed is the reduction of the first interlayer distance contraction to approximately half its value of the clean surface, i.e. to -1.7% for W and -2.0% for Mo . Our results give no evidence for an adsorbate-induced reconstruction of either surface and thus discard the widely accepted model of a hydrogen-induced lateral shift of the top layer of W (110). Hydrogen itself is found to be adsorbed in threefold-coordinated hollow sites at a height of about 1.2 Å and 1.1 Å above the first substrate layer of W and Mo , respectively.


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