Special solution of the （2＋1）-dimensional Sawada Kotera equation is decomposed into three （0＋1）- dimensional Bargmann flows. They are straightened out on the Jacobi variety of the associated hyperelliptic curve....Special solution of the （2＋1）-dimensional Sawada Kotera equation is decomposed into three （0＋1）- dimensional Bargmann flows. They are straightened out on the Jacobi variety of the associated hyperelliptic curve. Explicit algebraic-geometric solution is obtained on the basis of a deeper understanding of the KdV hierarchy.展开更多
The purpose of this paper is to show that autobiographical works like Gabrielle Roy＇s Enchantment and Sorrow （1988） and R6gine Robin＇s La Qudbdcoite （1983）, do not succeed in anchoring the self and eliminating p...The purpose of this paper is to show that autobiographical works like Gabrielle Roy＇s Enchantment and Sorrow （1988） and R6gine Robin＇s La Qudbdcoite （1983）, do not succeed in anchoring the self and eliminating past traumatic experiences. These writers realize that they cannot reincarnate their former ＇T＇ as time has passed and their lives have changed. The self does not let itself be reduced to a definite being but on the contrary mirrors itsef in all its surroundings. Writing the fragmentation of the self makes these authobiographies appear on one hand, fictional as the ＂I＂ always eludes itself. But on the other hand, they best describe the postmodern ＇T＇ who is conscious of the permeability of one＇s own self as well inwards by the influences, the collages of others on the Self as outwards by the projection of the self onto others, like rhizome connecting to others and forming a web of exchanges like in cyberspace展开更多
The purpose of this articleis to address the presence of seven recomposed ricercari by Jacques Buus in the Music Manuscript 242 from the Library of the University of Coimbra in Portugal （P-Cug MM 242）. These recompo...The purpose of this articleis to address the presence of seven recomposed ricercari by Jacques Buus in the Music Manuscript 242 from the Library of the University of Coimbra in Portugal （P-Cug MM 242）. These recompositions, probably copied in the third quarter of the 16th century, were made after the previously copied Buus＇s ricercari in Music Manuscript 48 （P-Cug MM 48） of the same library, which were based on the Libro primo de ricercari a quattrovoci, published in Venice in 1547 by Antonio Gardane. In this paper, the author intend to focus in two main aspects of the research done on this subject. The first topic concerns the score-format of both manuscripts 48 ＆ 242, which testify the instrumental activity in mid-sixteenth century Portugal. The author will demonstrate that this format served once, in the Santa Cruz Monastery in Coimbra, as a didactic tool in the teaching of counterpoint through the music of a northern European master such as Jacques Buus. The copies in the manuscripts were never intended to be used as a performing support--they contain many errors of vertical coordination between the voices that make the performance impossible. The second topic focuses on Buus＇ recomposed ricercari, which were the object of many cuts, brief recomposed bridges, newly inserted sections, and written glosa figurations. Through these recompositions, the author will describe the theoretic assimilation of formal processes, of style, mode, counterpoint and performing practice. The achievement of this paper is to offer historic musicology researchers a new perspective about the enormous influence that Buus＇ ricercari from his Libro primo.., had in the learning processes of music composition and in the development of didactic and performing practices in the Santa Cruz Monastery in Coimbra, during the mid-sixteenth century.展开更多
In this paper, we propose a protocol that can produce perfect copy of an unknown d-dimensional equatorial quantum state with assistance from a state preparer. In this protocol, the maximally and non-maximally entangle...In this paper, we propose a protocol that can produce perfect copy of an unknown d-dimensional equatorial quantum state with assistance from a state preparer. In this protocol, the maximally and non-maximally entangled bipartite d-dimensional of states are used as the quantum channels, respectively. The first stage of the protocol requires usual teleportation. In the second stage of the protocol, with the assistance of the preparer, the perfect copy of an original unknown state can be produced.展开更多
There are several indexing techniques that can optimize system performances. The choice of the right index type in a schema can improve the DB performances by up to 80%. Unfortunately the illustrations of the various ...There are several indexing techniques that can optimize system performances. The choice of the right index type in a schema can improve the DB performances by up to 80%. Unfortunately the illustrations of the various techniques are scattered over a number of texts and manuals, and the courses for database designers are often somewhat incomplete. The present paper shows a didactical experience which tackles this kind of limitations. In particular, the authors have prepared a textbook that includes twenty-one different index formats; it discusses advantages and disadvantages of each indexing technique, and has been positively validated during advanced courses on relational database design.展开更多
Assessment and learning must not be considered as two separate processes. In fact, assessment is an integral part of the learning process; it can be learning experience in itself. Active assessment strategies help stu...Assessment and learning must not be considered as two separate processes. In fact, assessment is an integral part of the learning process; it can be learning experience in itself. Active assessment strategies help students better understand the content they learn and develop skills that will be useful to them throughout their lives. Some of those skills are the ability to prepare effective oral and written reports and the ability to cooperate successfully with peers. Action research represents the process of systematic inquiry and it helps teachers to assess learning from the perspective of what they do in the classroom. The purpose is to find out ＂why＂ or ＂how＂ something happened the way it did. Therefore, a situation or problem should be carefully examined by a teacher. Teachers should analyze their own beliefs, values, and assumptions about teaching and learning, knowledge and curriculum, and how these impact the way they interact with students. Feedback should be used as part of assessment activities. Learning experience of students facilitated by teachers can be assessed through feedback.展开更多
基金The project supported by the Special Funds for Major State Basic Research Project under Grant No.G2000077301
文摘Special solution of the （2＋1）-dimensional Sawada Kotera equation is decomposed into three （0＋1）- dimensional Bargmann flows. They are straightened out on the Jacobi variety of the associated hyperelliptic curve. Explicit algebraic-geometric solution is obtained on the basis of a deeper understanding of the KdV hierarchy.
文摘The purpose of this paper is to show that autobiographical works like Gabrielle Roy＇s Enchantment and Sorrow （1988） and R6gine Robin＇s La Qudbdcoite （1983）, do not succeed in anchoring the self and eliminating past traumatic experiences. These writers realize that they cannot reincarnate their former ＇T＇ as time has passed and their lives have changed. The self does not let itself be reduced to a definite being but on the contrary mirrors itsef in all its surroundings. Writing the fragmentation of the self makes these authobiographies appear on one hand, fictional as the ＂I＂ always eludes itself. But on the other hand, they best describe the postmodern ＇T＇ who is conscious of the permeability of one＇s own self as well inwards by the influences, the collages of others on the Self as outwards by the projection of the self onto others, like rhizome connecting to others and forming a web of exchanges like in cyberspace
文摘The purpose of this articleis to address the presence of seven recomposed ricercari by Jacques Buus in the Music Manuscript 242 from the Library of the University of Coimbra in Portugal （P-Cug MM 242）. These recompositions, probably copied in the third quarter of the 16th century, were made after the previously copied Buus＇s ricercari in Music Manuscript 48 （P-Cug MM 48） of the same library, which were based on the Libro primo de ricercari a quattrovoci, published in Venice in 1547 by Antonio Gardane. In this paper, the author intend to focus in two main aspects of the research done on this subject. The first topic concerns the score-format of both manuscripts 48 ＆ 242, which testify the instrumental activity in mid-sixteenth century Portugal. The author will demonstrate that this format served once, in the Santa Cruz Monastery in Coimbra, as a didactic tool in the teaching of counterpoint through the music of a northern European master such as Jacques Buus. The copies in the manuscripts were never intended to be used as a performing support--they contain many errors of vertical coordination between the voices that make the performance impossible. The second topic focuses on Buus＇ recomposed ricercari, which were the object of many cuts, brief recomposed bridges, newly inserted sections, and written glosa figurations. Through these recompositions, the author will describe the theoretic assimilation of formal processes, of style, mode, counterpoint and performing practice. The achievement of this paper is to offer historic musicology researchers a new perspective about the enormous influence that Buus＇ ricercari from his Libro primo.., had in the learning processes of music composition and in the development of didactic and performing practices in the Santa Cruz Monastery in Coimbra, during the mid-sixteenth century.
文摘In this paper, we propose a protocol that can produce perfect copy of an unknown d-dimensional equatorial quantum state with assistance from a state preparer. In this protocol, the maximally and non-maximally entangled bipartite d-dimensional of states are used as the quantum channels, respectively. The first stage of the protocol requires usual teleportation. In the second stage of the protocol, with the assistance of the preparer, the perfect copy of an original unknown state can be produced.
文摘There are several indexing techniques that can optimize system performances. The choice of the right index type in a schema can improve the DB performances by up to 80%. Unfortunately the illustrations of the various techniques are scattered over a number of texts and manuals, and the courses for database designers are often somewhat incomplete. The present paper shows a didactical experience which tackles this kind of limitations. In particular, the authors have prepared a textbook that includes twenty-one different index formats; it discusses advantages and disadvantages of each indexing technique, and has been positively validated during advanced courses on relational database design.
文摘Assessment and learning must not be considered as two separate processes. In fact, assessment is an integral part of the learning process; it can be learning experience in itself. Active assessment strategies help students better understand the content they learn and develop skills that will be useful to them throughout their lives. Some of those skills are the ability to prepare effective oral and written reports and the ability to cooperate successfully with peers. Action research represents the process of systematic inquiry and it helps teachers to assess learning from the perspective of what they do in the classroom. The purpose is to find out ＂why＂ or ＂how＂ something happened the way it did. Therefore, a situation or problem should be carefully examined by a teacher. Teachers should analyze their own beliefs, values, and assumptions about teaching and learning, knowledge and curriculum, and how these impact the way they interact with students. Feedback should be used as part of assessment activities. Learning experience of students facilitated by teachers can be assessed through feedback.
