Results 241 to 250 of about 629,418 (288)

Representations of the future among Senegalese secondary school students

Journal of Adolescence, 1982
This study investigated future perspectives of young Senegalese by administering a questionnaire to 1044 secondary school students (282 girls and 762 boys, age range 11–22 years). This amounted to only two questions: (1) how do you imagine yourself in 20 years' time and (2) how do you figure out the world in the year 2000?Concerning their own future ...
W, D'Hondt, M, Vandewiele
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Data models for secondary storage representations

Proceedings of the 1st International Conference on Very Large Data Bases - VLDB '75, 1975
Performance modelling of data base management systems, and in particular data base models capable of describing representation features in secondary storage, are discussed. Data structures relevant for secondary storage representations are defined, and a partial characterization of several actual systems is given.
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On A Six-Dimensional Representation of RNA Secondary Structures

Journal of Biomolecular Structure and Dynamics, 2005
In this paper, we proposed a 6-D representation of RNA secondary structures. The use of the 6-D representation is illustrated by constructing structure invariants. Comparisons with the similarity/dissimilarity results based on 6-D representation for a set of RNA secondary structures, are considered to illustrate the use of our structure invariants ...
Bo, Liao, Kequan, Ding, Tian-ming, Wang
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Time and space efficient secondary memory representation of quadtrees

Information Systems, 1997
Abstract Efficient management of spatial data is becoming more and more important and for very large sets of 2-dimensional data, secondary memory data representations are required. An important class of queries for spatial data are those that extract a subset of the data: they are called window queries (also region or range queries). In this paper we
E. Nardelli, PROIETTI, GUIDO
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Ethical and Representational Issues in Qualitative Secondary Analysis

Qualitative Health Research, 1998
Although secondary analysis holds considerable promise for optimizing the health knowledge that can be constructed in relation to existing qualitative databases, methodological developments to guide design and evaluation of this research have not been fully explored in the qualitative research literature.
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On a seven-dimensional representation of RNA secondary structures

Molecular Simulation, 2005
In this paper, we proposed a seven-dimensional (7D) representation of ribonucleic acid (RNA) secondary structures. The use of the 7D representation is illustrated by constructing structure invariants. Comparisons with the similarity/dissimilarity results based on 7D representation for a set of RNA 3 secondary structures at the 3′-terminus of different ...
Bo Liao, Tianming Wang, Ding Kequan
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Exploring alternative knowledge representations for protein secondary-structure prediction

International Journal of Data Mining and Bioinformatics, 2007
Methods for 3-class secondary-structure prediction are thought to be reaching the highest achievable accuracy. Their accuracy on beta-sheet residue class is considerably lower than for the other two classes. We analysed the relevance of 315 individual input attributes for a predictor with the usual framework of using sequence-profile based data with an
Uros, Midic, A Keith, Dunker, Zoran, Obradovic   +2 more
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RNA secondary structure 2D graphical representation without degeneracy

International Journal of Quantum Chemistry, 2006
AbstractA two‐dimensional graphical representation (2DGRR) of RNA secondary structures using a two Cartesian coordinates system has been derived for mathematical denotation of RNA structure. The 2DGRR resolves structure degeneracy and avoids loss of information and the limitation that different structures correspond to the same curve.
Bo Liao, Jiawei Luo, Renfa Li, Wen Zhu
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RNA Secondary Structure 3D Graphical Representation Without Degeneracy

Journal of Mathematical Chemistry, 2006
A 3D graphical representation of RNA secondary structures(3DGRR) has been derived for mathematical denotation of RNA structure. The three-dimensional graphical representation avoids loss of information and resolves structures’ degeneracy.
Jiawei Luo, Bo Liao, Renfa Li, Wen Zhu
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Representation of sporting migrants: primary versus secondary

European Journal for Sport and Society, 2017
AbstractThe use of foreigners in Czech basketball is examined as per its response to globalization using an analysis of print media. Basketball is a secondary sport in Czech culture and thus the globalization responses are less contested than might be expected based on previous sport migration studies in primary sports, and previous research showing ...
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