List of the Participants Xl Audience of the Holy Father XVll SCIENTIFIC PAPERS Introductory Remarks. Electrostatics and Specificity III Nucleic Acid Reactions (B. Pullman)...1 Theoretical Studies of Molecular Recognition and Ca- lysis by Enzymes (H. A. Scheraga) ...21 Molecular Dynamics of the DNA Double Helix (M. Levitt) 43 Simulating the Energetics and Dynamics of Enzymatic Reactions (A. Warshel) ...59 Structural Studies of DNA-Protein Interactions (B. W. Matthews) ...83 Protein-Nucleic Acid Interactions, Models and Reality (W. Saenger) ...*...99 Studying Enzyme-Substrate Interactions by Site-Directed Mutagenesis (A. R. Fersht and G. Winter) ...123 Sequence Dependence of DNA Conformation, Dynamics and Interactions in Solution (D. ]. Patel, S. A. Kozlowski, A. Pardi, R. Bhatt, S. Ikuta and K. Itakura) 133 Elements of Specific Recognition of Non-Intercalating - gands in the Interaction with DNA (C. Zimmer and G. Luck) ...175 VIlI PONTIFICIAE ACADEMIAE SCIENTIARUM SCRIPTA VARIA 55 Interactions of Transfer RNAs with their Biological Partners (J. P. Ebel, R. Giege, D. Moras and P. Remy) 207 Antibody Structure and Specificity (D. R. Davies) . 249 Specificity of Ionophore-Cation Interaction (Yu. A. - chinnikov and V. T. Ivanov) " ...263 Theoretical Analysis of Factors Responsible for Specificity in Ionophore-Cation Interactions (A. Pullman) 303 FOREWORD " The specificity of biological interactions" was the subject of a Study Group that met at the Pontifical Academy of Sciences from Novem- ber 9-11, 1983. This theme is one of the most advanced fields in modern biology.

Unsayable Music presents theoretical, critical and analytical reflections on key topics of contemporary music including acoustic, electroacoustic, and digital music and audiovisual and multimedia composition. Six essays by Paulo C. Chagas approach music from different perspectives such as philosophy, sociology, cybernetics, musical semiotics, media, and critical studies.

Chagas's practical experience, both as a composer of contemporary music and sound director of the Electronic Music Studio of Cologne, nourishes his observations on the specific creativity that emerges with the use of the technical apparatus, the development of the electronic music studio, the different aesthetics of electroacoustic music, and the forms of audiovisual and multimedia composition.

The title Unsayable Music is a reference to Wittgenstein, who suggested that sound is only the surface of music and that the musical work conceals something more profound that can hardly be described by philosophical models or scientific theories."

This book transforms phenomenology, music, technology, and the cultural arts from within. Gathering contributions by performing artists, media technology designers, nomadic composers, and distinguished musicological scholars, it explores a rich array of concepts such as embodiment, art and technology, mindfulness meditation, time and space in music, self and emptiness, as well as cultural heritage preservation. It does so via close studies on music phenomenology theory, works involving experimental music and technology, and related cultural and historical issues. This book will be of considerable interest to readers from the fields of sound studies, science and technology studies, phenomenology, cultural studies, media studies, and sound art theory. This book is equally relevant and insightful for musicians, composers, media artists, sound artists, technology designers, and curators and arts administrators from the performing and visual arts.

List of the Participants Xl Audience of the Holy Father XVll SCIENTIFIC PAPERS Introductory Remarks. Electrostatics and Specificity III Nucleic Acid Reactions (B. Pullman). . . 1 Theoretical Studies of Molecular Recognition and Ca- lysis by Enzymes (H. A. Scheraga) . . . . 21 Molecular Dynamics of the DNA Double Helix (M. Levitt) 43 Simulating the Energetics and Dynamics of Enzymatic Reactions (A. Warshel) . . . . . . . . . . 59 Structural Studies of DNA-Protein Interactions (B. W. Matthews) . . . . . . . . . . . . . . . . . . . . 83 Protein-Nucleic Acid Interactions, Models and Reality (W. Saenger) . . . . . . . . . . . . . . . . . . . 99 Studying Enzyme-Substrate Interactions by Site-Directed Mutagenesis (A. R. Fersht and G. Winter) . . . . . 123 Sequence Dependence of DNA Conformation, Dynamics and Interactions in Solution (D. ]. Patel, S. A. Kozlowski, A. Pardi, R. Bhatt, S. Ikuta and K. Itakura) 133 Elements of Specific Recognition of Non-Intercalating - gands in the Interaction with DNA (C. Zimmer and G. Luck) . . . . . . . . . . . . . . . . . . . . 175 VIlI PONTIFICIAE ACADEMIAE SCIENTIARUM SCRIPTA VARIA 55 Interactions of Transfer RNAs with their Biological Partners (J. P. Ebel, R. Giege, D. Moras and P. Remy) 207 Antibody Structure and Specificity (D. R. Davies) . 249 Specificity of Ionophore-Cation Interaction (Yu. A. - chinnikov and V. T. Ivanov) " . . . . . . . 263 Theoretical Analysis of Factors Responsible for Specificity in Ionophore-Cation Interactions (A. Pullman) 303 FOREWORD " The specificity of biological interactions" was the subject of a Study Group that met at the Pontifical Academy of Sciences from Novem ber 9-11, 1983. This theme is one of the most advanced fields in modern biology."

This book transforms phenomenology, music, technology, and the cultural arts from within. Gathering contributions by performing artists, media technology designers, nomadic composers, and distinguished musicological scholars, it explores a rich array of concepts such as embodiment, art and technology, mindfulness meditation, time and space in music, self and emptiness, as well as cultural heritage preservation. It does so via close studies on music phenomenology theory, works involving experimental music and technology, and related cultural and historical issues. This book will be of considerable interest to readers from the fields of sound studies, science and technology studies, phenomenology, cultural studies, media studies, and sound art theory. This book is equally relevant and insightful for musicians, composers, media artists, sound artists, technology designers, and curators and arts administrators from the performing and visual arts.