1,721,081 research outputs found
A wind band arrangment of a traditional Danz??n: a guide through historical awareness and performance practices
No full textThe Danz??n is one of Cuba's first distinctive genres of dance and music to become recognizable as its own. In a musical sense, the Danz??n comes from a storied background that embodies a mixture constructed upon African and European origins. As an elegant slow dance, the Danz??n became very popular in its time and was to become the foundation of many Cuban dance styles we know today.
The purpose of this study is to offer the opportunity to enhance a student's musical knowledge of Cuban music through historical awareness and performance practices. In order to undertake this goal, we will start by examining historical events that led to the creation of the Danz??n. As educators, we need to remind ourselves that students retain more by a "hands on" approach. Therefore, the author arranged a wind band arrangement of a traditional Danz??n entitled, "El Cadete Constitucional." This arrangement, a compostion by Jacobo Ruvalcaba, will serve as a fundamental source to enhance academic introduction and comprehension of danz??n. The author also took into consideration the level of difficulty so that every instrumental student of a middle and high school age may have complete access to learn the performance styles of a traditional Danz??n. Concert recordings and musical scores are also provided for further analysis
Three Afro-Latin genres: deconstructing and arranging the danz??n, the ch??ro, and the bossa nova
No full textThis thesis project delves exclusively into three Afro-Latin genres: the danz??n (and a variant, the danzonete), the ch??ro, and the bossa nova. For each genre, the author provided a brief historical background and analysis of the genre, and two original arrangements. A public performance showcasing these six arrangements was given on June 9th, 2013 as part of a larger, more diverse set of music, although only these original arrangements were discussed here. This concert served as demonstration of the candidate's abilities in both arranging for ensemble of various sizes (and instrumentation) as well as keyboard performance within the Afro-Latin group setting. The inspiration for all six arrangements were drawn from various sources: the Cuban danz??n from an ??tude by Fr??d??ric Chopin; the danzonete from a french popular song that became a jazz standard in English, then retranslated into Spanish; the two Brazilian ch??ros by Pixinguinha/Lacerda and Abreu; and two contrasting Brazilian bossa novas by Antonio Carlos Jobim. The author attempted to deconstruct, musically analyze, and reconstitute a piece in good representation of that particular genre, each with some of its particular vernacular and genre-specific norms. Although some rhythmic, textural, and harmonic choices within each arrangement were original, many aspects of form and style conventions were arranged in close proximation to notable recordings, in an effort to reconstitute a piece in good representation of that particular genre
Anisotropic fluorescence emission and photobleaching at the surface of one-dimensional photonic crystals sustaining bloch surface waves. II. experiments
No full textPhotonic crystal (PC)-enhanced fluorescence has been proposed as a novel tool for early disease detection in liquid biopsy. Photobleaching of the emitters has never been deeply investigated, although its cross section is expected to increase because of the large field intensity enhancement in PC. Herein, we report on the experimental investigation of the anisotropic effects arising when fluorescence excitation and emission are coupled to differently polarized modes of the same PC structure. In particular, we experimentally characterized the anisotropic photobleaching taking place during the operation of one-dimensional PC (1DPC) biosensors sustaining Bloch surface waves (BSW) at their truncation edge. The experimental results are compared to the description provided by our theoretical model reported in a twin article. We demonstrate experimentally that photobleaching affects the response of a cancer biomarkers' detection assay and propose a procedure to compensate for it. Moreover, we describe the experimental use of BSW-coupled fluorescence and of the strong localization of the BSW at the 1DPC surface to selectively probe the rotational diffusion kinetics of proteins bound at the 1DPC surface with high spatial resolution and for different binding strengths
Thickness dependence of surface plasmon polariton dispersion in transparent conducting oxide films at 1.55 mu m
No full textBloch Surface Wave Based Biosensing
No full textAn integrated biosensing platform exploiting the properties of Bloch surface waves on all-dielectric thin film stacks is described. It combines label-free sensing based on angular resonance tracking with surface wave enhanced fluorescence excitation and detection. Detailed design considerations reveal a system with defined attenuation to improve resolution limits in both modes
Thickness dependence of surface plasmon polariton dispersion in transparent conducting oxide films at 1.55 μm
No full textWe experimentally demonstrate propagation of surface plasmon polaritons in the near-IR window λ ∈ (1.45 μm, 1.59 μm) at the interface of indium-tin-oxide films with different thicknesses deposited on glass. Dispersion of such polaritons is strongly dependent on the film thickness, putting into evidence a regime in which polaritons at both films's interfaces are coupled in surface supermodes. The experimental data are shown to be in good agreement with the analytical model for thin and absorbing conducting films. Measurements on aluminum-doped zinc oxide, characterized by a redshifted plasma resonance, do not show any surface plasmon polariton excitation in the same wavelength window
Multilayer coatings for Bloch surface wave optical biosensors
Full text linkSensors using surface plasmon resonance (SPR) are established as themethod of choice in label-free optical biosensing.
Their sensitivity for small refractive index changes at the surface originates from the enhanced evanescent
field at the surface of a thin metal layer. However, the small number of well-suited metals (Ag, Au) with
fixed optical constants limits a further refinement of the SPR performance in terms of dispersion and resonance
width. An alternative can be found in Bloch SurfaceWaves (BSW) sustained at specially designed dielectricmultilayer
stacks with low absorption losses. Due to the low losses an enormous narrowing of the resonance is obtained,
promising the reduction of the detection limit for such a label-free sensor. In order to deposit these
multilayers on plastic sensor chips, plasma ion assisted vacuum evaporation (PIAD) was applied as deposition
method. SiO2, TiO2, and Ta2O5 single layer properties were balanced in terms of absorption losses, stability in
aqueous environment and film stress. Dielectricmultilayer stacks could be designed in away, that resonance performance
is optimal and the total stack thickness as low as possible. Optimized Bloch stacks were successfully
coated on a large number of polymer chips. The application could be demonstrated by the detection of cancer biomarkers
using an analytical instrument that was developed with the BSWchips as core element
Thickness dependence of surface plasmon polariton dispersion in transparent conducting oxide films at 1.55 mu m
No full textWe experimentally demonstrate propagation of surface plasmon polaritons in the near-IR window lambda is an element of (1.45 mu m, 1.59 mu m) at the interface of indium-tin-oxide films with different thicknesses deposited on glass. Dispersion of such polaritons is strongly dependent on the film thickness, putting into evidence a regime in which polaritons; at both films's interfaces are coupled in surface supermodes. The experimental data are shown to be in good agreement with the analytical model for thin and absorbing conducting films. Measurements on aluminum-doped zinc oxide, characterized by a redshifted plasma resonance, do not show any surface plasmon polariton excitation in the same wavelength window
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
- …
