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  • Digitale Medien  (153)
  • Chemistry  (147)
  • Philosophically Closed Language  (6)
  • 1
    ISSN: 1573-8787
    Schlagwort(e): Transparent Query Language ; Mathematically Complete Language ; Philosophically Closed Language ; SOLID Retrieval/Processing System
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Informatik
    Notizen: Abstract This part, PART IIB [2], of the document “HIGH-SPEED TOOLS FOR GLOBAL INFORMATION MANAGEMENT. II. Specifications and Uses of the Transparent Query Language (TQL)” [1–6] contains the specifications for the operations that provide the arithmetic capabilities for Transparent Query Language. PART IIB references PART IIA [1] and PART IIC [3]. Concise definitions of Transparent Query Language terms, Conclusions and Acknowledgments are given in PART IIF [6].
    Materialart: Digitale Medien
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  • 2
    ISSN: 1573-8787
    Schlagwort(e): Transparent Query Language ; Mathematically Complete Language ; Philosophically Closed Language ; SOLID Retrieval/Processing System
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Informatik
    Notizen: Abstract This part, PART IIC [3], of the document “HIGH-SPEED TOOLS FOR GLOBAL INFORMATION MANAGEMENT. II. Specifications and Uses of the Transparent Query Language (TQL)” [1–6] is a continuation of [2] and should be studied immediately after reading PART IIB [2]. It describes (i) the security system that can be easily invoked to deny unauthorized access to any item of information in any database; (ii) the special codes that can be used to specify virtually any degree of uncertainty; (iii) the registry numbers which terminate information paths; and (iv) the command structure for the Transportable Query Language. PART IIC references PART IIA [1], PART IIB [2], PART IID [4] and PART IIF [6]. Concise definitions of Transparent Query Language terms, Conclusions and Acknowledgments are given in PART IIF [6].
    Materialart: Digitale Medien
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  • 3
    ISSN: 1573-8787
    Schlagwort(e): Transparent Query Language ; Mathematically Complete Language ; Philosophically Closed Language ; SOLID Retrieval/Processing System
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Informatik
    Notizen: Abstract In the six parts of the document “HIGH-SPEED TOOLS FOR GLOBAL INFORMATION MANAGEMENT. II. Specifications and Uses of the Transparent Query Language (TQL)” [1–6], the Transparent Query Language (TQL) that is the mathematical basis for the SOLID Retrieval/Processing System [7] is described and its use demonstrated. TQL is directly responsible for the speed, versatility, security and information/question-type independence of the SOLID System. It can be viewed as a Mathematically Complete (or Philosophically Closed) [8] data structure or content/context independent language capable of describing individual or classes of descriptors in any combination with any degree of specificity. The security system is easily used to prevent unauthorized access to any item in any file. TQL is sufficiently general to be used outside the context of information retrieval. It is capable of concisely representing and manipulating a wide variety of time dependent or static numeric and non-numeric information. The six parts of this document [1–6], are as follows. The first part, PART IIA [1], contains a review of the literature and then introduces the Transparent Query Language. It references PART IIB [2], PART IIC [3], PART IID [4], PART IIE [5] and PART IIF [6]. Concise definitions of Transparent Query Language terms, Conclusions and Acknowledgments are given in PART IIF [6]. Section III in PART IIA [1] contains information for converting citations of sections and subsections in the original document to their locations in the partitioned document.
    Materialart: Digitale Medien
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  • 4
    ISSN: 1573-8787
    Schlagwort(e): Transparent Query Language ; Mathematically Complete Language ; Philosophically Closed Language ; SOLID Retrieval/Processing System
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Informatik
    Notizen: Abstract This part, PART IID [4], of the document “HIGH-SPEED TOOLS FOR GLOBAL INFORMATION MANAGEMENT. II. Specifications and Uses of the Transparent Query Language (TQL)” [1–6] is about normalization and manipulation of information representations. It references PART IIA [1], PART IIB [2] and PART IIC [3]. Concise definitions of Transparent Query Language terms, Conclusions and Acknowledgments are given in PART IIF [6].
    Materialart: Digitale Medien
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  • 5
    ISSN: 1573-8787
    Schlagwort(e): Transparent Query Language ; Mathematically Complete Language ; Philosophically Closed Language ; SOLID Retrieval/Processing System ; Sequel (SQL) ; Relational Algebra ; QUEL ; Query-By-Example (QBE)
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Informatik
    Notizen: Abstract In this part, PART IIE [5], of the document “HIGH-SPEED TOOLS FOR GLOBAL INFORMATION MANAGEMENT. II. Specifications and Uses of the Transparent Query Language (TQL)” [1–6] the conversion of queries coded in SQL, Relational Algebra, QUEL and Query-By-Examples (QBE) to TQL are demonstrated. PART IIE references PART IIA [1], PART IIB [2], PART IID [3] and PART IIF [6]. Concise definitions of Transparent Query Language terms, Conclusions and Acknowledgments are given in PART IIF [6].
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  • 6
    ISSN: 1573-8787
    Schlagwort(e): Transparent Query Language ; Mathematically Complete Language ; Philosophically Closed Language ; SOLID Retrieval/Processing System
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Informatik
    Notizen: Abstract This part, PART IIF [6], concludes the document “HIGH-SPEED TOOLS FOR GLOBAL INFORMATION MANAGEMENT. II. Specifications and Uses of the Transparent Query Language (TQL)” [1–6]. It describes novel applications of TQL, the key data structures, and contains a dictionary of Transparent Query Language terms. PART IIF references PART IIA [1], PART IIB [2], PART IIC [3], PART IID [4], and PART IIE [5] and contains Conclusions and Acknowledgements.
    Materialart: Digitale Medien
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  • 7
    Digitale Medien
    Digitale Medien
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 25 (1987), S. 2025-2032 
    ISSN: 0887-624X
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: The effect of ammonia/ammonium thiocyanate (NH3/NH4SCN) treatment of the swelling behavior, structural changes, and physical properties of cotton sheeting was compared with that of sodium hydroxide and liquid ammonia mercerization. Increased percent shrinkage, accessibility to a large dye molecule, dyestuff absorption, swelling with water, and water imbibition showed that NH3/NH4SCN had improved the accessibility of the cotton fabric. X-ray diffractograms showed the characteristic Cellulose I crystal lattice. X-ray diffraction and infrared absorption spectroscopy indicated that the crystallite size was unchanged and the swelling from the NH3/NH4SCN treatment occurred in the amorphous regions of the cellulose since the observed crystal structure was unchanged. Moisture regain determinations and barium hydroxide absorption suggested that some recrystallization of the cellulose may have occurred from the NH3/NH4SCN treatment. Fibers treated with NH3/NH4SCN showed a cross sectional shape similar to that of the origianl fibers but with reduced lumen area.
    Zusätzliches Material: 4 Tab.
    Materialart: Digitale Medien
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  • 8
    ISSN: 0887-3585
    Schlagwort(e): structure-based drug design ; ligand-protein recognition ; binding landscapes ; docking funnels ; stochastic search ; Chemistry ; Biochemistry and Biotechnology
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Medizin
    Notizen: Energy landscapes of molecular recognition are explored by performing “semi-rigid” docking of FK-506 and rapamycin with the Fukisawa binding protein (FKBP-12), and flexible docking simulations of the Ro-31-8959 and AG-1284 inhibitors with HIV-1 protease by a genetic algorithm. The requirements of a molecular recognition model to meet thermodynamic and kinetic criteria of ligand-protein docking simultaneously are investigated using a family of simple molecular recognition energy functions. The critical factor that determines the success rate in predicting the structure of ligand-protein complexes is found to be the roughness of the binding energy landscape, in accordance with a minimal frustration principle. The results suggest that further progress in structure prediction of ligand-protein complexes can be achieved by designing molecular recognition energy functions that generate binding landscapes with reduced frustration. © 1996 Wiley-Liss, Inc.
    Zusätzliches Material: 10 Ill.
    Materialart: Digitale Medien
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  • 9
    Digitale Medien
    Digitale Medien
    New York, NY : Wiley-Blackwell
    Proteins: Structure, Function, and Genetics 29 (1997), S. 59-67 
    ISSN: 0887-3585
    Schlagwort(e): blind trials ; CASP2 ; homology modelling ; protein structure prediction ; Chemistry ; Biochemistry and Biotechnology
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Medizin
    Notizen: The CASP blind trials (Critical Assessment of techniques for protein Structure Prediction) assess the accuracy of protein prediction that includes evaluation of comparative model building of protein structures. Comparative models of four proteins (T0001, T0003, T0017, and T0028) for CASP2 (held during 1996) were constructed using computer algorithms combined with visual inspection. Essentially the main-chain modelling involves construction of the target structure from rigid-body segments of homologues and loop fragments extracted from homologous and nonredundant databases. Side-chains were initially constructed by inheritance from the parent or from a rotamer library. Side-chain conformations were then refined using a novel mean field approach that includes solvation. Comparison of the models with the subsequently released X-ray structures identified the successes and limitations of our approach. The most problematic area is the quality of the sequence alignments between parent(s) and target. In this respect the overinterpretation of the conserved features within homologous families can be misleading. Several features of our approach have a positive effect on the accuracy of the models. For T0003, inspection correctly identified that a lower sequence identity parent provides the best framework for this model. Loop selection worked well where a homologous protein fragment was used, but that the use of nonredundant fragment library remains problematic for hinge movements and displacements in secondary structure elements relative to the parent. Side-chain refinement improved residue conformations relative to the initial model. Use of limited energy minimization improved the stereochemical quality of the model without increasing the RMS deviation. This study has identified methods that are effective and areas requiring further attention to improve model building by comparison. Proteins, Suppl. 1:59-67, 1997. © 1998 Wiley-Liss, Inc.
    Zusätzliches Material: 5 Ill.
    Materialart: Digitale Medien
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  • 10
    Digitale Medien
    Digitale Medien
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 15 (1988), S. 553-564 
    ISSN: 0887-6134
    Schlagwort(e): Chemistry ; Analytical Chemistry and Spectroscopy
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: Capillary column isobutane chemical ionization was found to be an excellent method for the mass spectral characterization of mustard, other sulfur vesicants and related compounds. Interpretation of [M + H]+ and fragmentation ion information afforded by this technique enabled the identification of many previously unreported mustard impurities. The developed methodology was applied to the analysis of an Iran/Iraq soil sample suspected to have been contaminated with mustard. Mustard and 17 other mustard related impurities were identified and characterized in this sample under electron impact and isobutane chemical ionization conditions.
    Zusätzliches Material: 6 Ill.
    Materialart: Digitale Medien
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