115 research outputs found
Bleeding through… compositional processes in the integration of Middle Eastern and Western art music
This thesis consists of a portfolio of 10 compositions accompanied by a written commentary with audio and video recordings of my works. These compositions span a wide variety of instrumentations from large orchestral works to solo instrumental works, of both Western and Eastern traditions, as well as vocal and live art installation pieces.
Throughout the commentary I explore the continuum of how Eastern traditional idioms and Western art music play a role in the creation of my musical language. This includes an overview of the history of bi-cultural integration and an exploration of the motivations for integrating musics, both in my own work and that of other composers. I explore particular parameters within my works, focusing on the spectrums between composition and improvisation, the concepts of translation and transcription and collaborative practice with Western classical and musicians of Eastern traditional music. Additionally, I examine how my application of Eastern musical parameters and techniques are filtered through four of my other interests and influences: namely, my development of a gestural and timbral language which stems from an engagement with my approach to pitch and harmony
Phased Fiber Growth in a Peptide Conjugate:  Aggregation and Disaggregation Studies
A glycine-rich, short pentapeptide conjugate 6, derived from the highly conserved copper-binding octarepeat
region of the prion protein, exhibits a tendency to self-aggregate in a time-dependent fashion. Aging of 6
afforded an insight into the phased growth of spherical prefibrillar structures to fibers of long persistence
length, as observed by a combination of microscopic techniques. Interestingly, growth of these fibers was
inhibited by colchicine, a known inhibitor of microtubule polymerization in a concentration dependent fashion.
This study offers an intriguing insight into the occurrence of prefibrillar intermediates on the path to the
formation of full length peptide fibers. It is also envisaged that constructs such as 6 may also serve as simple
models to study chemical intervention of protein aggregation
Energy Efficient Zone Divided and Energy Balanced Clustering Routing Protocol (EEZECR) in Wireless Sensor Network
Wireless sensor network has proven its significance in almost every field in today’s era. Wireless sensor network consists of large number of sensor nodes distributed randomly in some areas. In WSN the main objective has been increasing the network lifetime. There is zone divisional approach which has shown sound improvement in increasing the network lifetime over the Leach and EEUC protocols. The proposed protocol Energy efficient zone divided and energy balanced clustering routing protocol (EEZECR) has not only much higher network lifetime as compare to ZECR and it also has much better load balancing in the network. In the EEZECR the concept of double cluster head in a cluster is introduced which reduces the load on cluster head and very efficiently does the task of load balancing in the network thoroughly whichmakes this protocol favorite for many real time applications. Simulations are performed in MATLAB.</div
Silver−Adenine Metallamacrocyclic Hexamer
Beneficial carboxylate−silver interactions afford facile coordination of five silver ions to a modified adenine ligand, leading to the formation of a hexameric cyclic structure in the solid state
Silver−Adenine Metallamacrocyclic Hexamer
Beneficial carboxylate−silver interactions afford facile coordination of five silver ions to a modified adenine ligand, leading to the formation of a hexameric cyclic structure in the solid state
Crystal Engineering with 2‑Aminopurine and 2,6-Diaminopurine Derivatives: Dimers, Metallaquartets, and Halide-Bridged Clusters
Design, synthesis, and single crystal
structure elucidation of
modified purine ligands 2-(2-amino-9<i>H</i>-purin-9-yl)
acetic acid (<b>L1</b>) and 2-(2,6-diamino-9<i>H</i>-purin-9-yl) acetic acid (<b>L2</b>) and their interaction
with certain d<sup>10</sup> transition metal ions is described. Copper
complex <b>1 </b>(C<sub>28</sub>H<sub>34</sub>Cu<sub>2</sub>N<sub>22</sub>O<sub>19</sub>) afforded a two-dimensional polymeric
structure composed of metallaquartets, while corresponding silver
complex <b>2 </b>(C<sub>14</sub>H<sub>20</sub>AgN<sub>10</sub>O<sub>8</sub>) was formed as a discrete dimer. Complexes <b>3 </b>(C<sub>14</sub>H<sub>24</sub>CdN<sub>10</sub>O<sub>10</sub>) and <b>5 </b>(C<sub>14</sub>H<sub>22</sub>CdN<sub>12</sub>O<sub>8</sub>), cadmium complexes of <b>L1</b> and <b>L2</b>, respectively,
afforded different coordinating modes, where <b>3</b> resulted
in a two-dimensional (2D) polymeric structure consisting of metallaquartets
and <b>5</b> as a discrete dimeric structure, with an octahedral
coordination geometry. Complex <b>4 (</b>C<sub>14</sub>H<sub>13</sub>Cl<sub>13</sub>Hg<sub>6</sub>N<sub>10</sub>O<sub>8</sub>)
afforded a unique hexanuclear, 2D polymeric structure, supported by
mercury-chloride bridges, presenting as interconnected dimeric, trimeric,
and hexameric mercury halide (μ<sub>2double</sub>, μ<sub>3triple</sub>, and μ<sub>6six</sub>) clusters. The potential
of halide ions as bridges is interesting. We have also studied the
fluorescence properties of ligand <b>L1</b> and <b>L2</b> along with complexes <b>1</b>–<b>5</b>
Crystallographic Signatures of <i>N</i><sup>6</sup>-Methoxyadenine Imino Tautomer–Silver Complexes
Detailed crystallographic analysis of four silver complexes
of <i>N</i>9-benzyl-<i>N</i><sup>6</sup>-methoxyadenine, <b>1</b>, on the basis of three different
counteranions and silver ion stoichiometry, is discussed in this article. <b>1</b> is a rare tautomer of adenine, which exhibits promutagenic
behavior as it partly mimics hydrogen bond donor and acceptor properties
of guanine and mispairs with cytosine. Complexes <b>2</b> and <b>4</b> exhibit discrete Ag<sub>2</sub>L<sub>2</sub> dimer, while
complex <b>3</b> shows two AgL<sub>2</sub> units in addition
to a Ag<sub>2</sub>L<sub>2</sub> dimer, all in a head-to tail fashion.
Complex <b>5</b>, on the other hand, shows four AgL<sub>2</sub> units coordinated in a head-to-head fashion affording a three-dimensional lattice
stabilized by CH···F interactions. Various noncovalent
interactions such as hydrogen bonding, CH-Ï€ interactions, argentophilic
interactions, and Ag-Ï€ interactions stabilize these complexes
Interconnected Trimeric, Pentameric, and Hexameric Metallacycles in a Singular Silver−Adenine Framework
This Article describes the synthesis and crystallographic investigation of a silver complex of a modified adenine derivative bearing a nitrile pendant at the N9 position. All three adenine ring nitrogen atoms coordinated to silver ions, while the fourth coordination was achieved at the nitrile functionality, thus resulting in the formation of silver-mediated interconnected trimeric, pentameric, and hexameric metallacyclic rings and helical signatures in two orthogonal directions
Patterned Deposition of a Mixed-Coordination Adenine−Silver Helicate, Containing a π-Stacked Metallacycle, on a Graphite Surface
A novel mixed-valence silver complex with modified adenine and its adsorption behavior on different substrates was studied by atomic force microscopy, and selective patterning on a graphite surface is described in this report
A Luminescent Silver−Adenine Metallamacrocyclic Quartet
This communication describes formation of a 3N-coordinated silver-modified adenine metallamacrocyclic quartet in solid state, its aggregative ordering on graphite surface, and luminescence
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