Schenkerian Analysis for the Beginner

In the classroom, the teacher of Schenkerian analysis faces the challenge of reconciling the holistic evaluation of works with the sequential presentation of content from simple to complex. Drawing from previous learning taxonomies (Bloom 1956, Anderson and Krathwohl 2001, and Rifkin and Stoecker 2011), I propose an adapted one for Schenkerian analysis. I note differences between this taxonomy and analytical procedures shown in current Schenkerian textbooks (Cadwallader and Gagné 2011, Pankhurst 2008), pursue implications of the new learning taxonomy, and suggest a wide range of classroom activities that have proven effective in my own introductory course. Goals of the new taxonomy include the rapid building of students’ graphing competency, and motivating students to use Schenkerian analysis on their own outside of the classroom

Directional Tonality in Schumann\u27s Early Works

Beginning and ending a work in the same key, thereby suggesting a hierarchical structure, is a hallmark of eighteenth- and nineteenth-century practice. Occasionally, however, early nineteenth-century works begin and end in different, but equally plausible keys (directional tonality), thereby associating two or more keys in decentralized complexes. Franz Schubert’s works are sometimes interpreted as central to this practice, especially those that extend third relationships to larger, often chromatic cycles. Robert Schumann’s early directional-tonal works, however, have received less analytical scrutiny. In them, pairings are instead diatonic between two keys, which usually relate as relative major and minor, thereby allowing Schumann to both oppose and link dichotomous emotional states. These diatonic pairings tend to be vulnerable to monotonal influences, with the play between dual-tonal (equally structural) and monotonal contexts central to the compositional discourse. In this article, I adapt Schenkerian theory (especially the modifications of Deborah Stein and Harald Krebs) to directional-tonal structures, enumerate different blendings of monotonal and directional-tonal states, and demonstrate structural play in both single- and multiple-movement contexts

Photon pair generation using four-wave mixing in a microstructured fibre: theory versus experiment

We develop a theoretical analysis of four-wave mixing used to generate photon pairs useful for quantum information processing. The analysis applies to a single mode microstructured fibre pumped by an ultra-short coherent pulse in the normal dispersion region. Given the values of the optical propagation constant inside the fibre, we can estimate the created number of photon pairs per pulse, their central wavelength and their respective bandwidth. We use the experimental results from a picosecond source of correlated photon pairs using a micro-structured fibre to validate the model. The fibre is pumped in the normal dispersion regime at 708nm and phase matching is satisfied for widely spaced parametric wavelengths of 586nm and 894nm. We measure the number of photons per pulse using a loss-independent coincidence scheme and compare the results with the theoretical expectation. We show a good agreement between the theoretical expectations and the experimental results for various fibre lengths and pump powers.Comment: 23 pages, 9 figure

CORRUPTION AND OBSTACLES FOR CONDUCTING BUSINESS IN FORMER FRENCH WEST AFRICA

This study examines the extent of corruption and obstacles to conducting business in some former French West Africa countries. Methodology: This study uses business owner’s and mangers perceptions about the use of gifts or informal payments and obstacles to conducting business in five African countries.  Data comes from the World Bank Institute and the European Bank for Reconstruction and Development’s Business Environment and Economic Performance study.  Data from Benin, Burkina Faso, Niger, Senegal, and Togo were examined.  Univariate general linear analysis was used to discover statistical differences between factors by country. Main Findings: Results show Senegalese managers and owners perceived the lowest obstacles to conducting business among the five countries.  Togo business managers and owners are slightly less positive about obstacles they face in their businesses.  Businesses in the five countries on average pay about eight percent of their annual sales as gifts/informal payments. Limitations: The study uses data that is about ten years old.  The political and economic environment may have changed in these countries since data collection. Social Implications: The significant level of obstacles business faces in these countries may significantly reduce foreign direct investment in these countries.  Electricity is an obstacle in most of these countries reducing the ability if not the interest in conducting business. Originality/Novelty of the Study: The French strategy in this region for three hundred years was to rule through the military not the development of economic systems.  The results of this strategy may still be apparent in the number and degree of obstacles facing business only 50 years after independence

Photonic mode density effects on single-molecule fluorescence blinking

We investigated the influence of the photonic mode density (PMD) on the triplet dynamics of individual chromophores on a dielectric interface by comparing their response in the presence and absence of a nearby gold film. Lifetimes of the excited singlet state were evaluated in ordet to measure directly the PMD at the molecules position. Triplet state lifetimes were simultaneously determined by statistical analysis of the detection time of the fluorescence photons. The observed singlet decay rates are in agreement with the predicted PMD for molecules with different orientations. The triplet decay rate is modified in a fashion correlated to the singlet decay rate. These results show that PMD engineering can lead to an important suppression of the fluorescence, introducing a novel aspect of the physical mechanism to enhance fluorescence intensity in PMD-enhancing systems such as plasmonic devices

Perceptions of Australasian emergency department staff of the impact of alcohol-related presentations

Objectives: To survey emergency department (ED) clinical staff about their perceptions of alcohol-related presentations. Design, setting and participants: A mixed methods online survey of ED clinicians in Australia and New Zealand, conducted from 30 May to 7 July 2014. Main outcome measures: The frequency of aggression from alcoholaffected patients or their carers experienced by ED staff; the perceived impact of alcohol-related presentations on ED function, waiting times, other patients and staff. Results: In total, 2002 ED clinical staff completed the survey, including 904 ED nurses (45.2%) and 1016 ED doctors (50.7%). Alcohol-related verbal aggression from patients had been experienced in the past 12 months by 97.9% of respondents, and physical aggression by 92.2%. ED nurses were the group most likely to have felt unsafe because of the behaviour of these patients (92% reported such feelings). Alcohol-related presentations were perceived to negatively or very negatively affect waiting times (noted by 85.5% of respondents), other patients in the waiting room (94.4%), and the care of other patients (88.3%). Alcohol-affected patients were perceived to have a negative or very negative impact on staff workload (94.2%), wellbeing (74.1%) and job satisfaction (80.9%). Conclusions: Verbal and physical aggression by alcohol-affected patients is commonly experienced by ED clinical staff. This has a negative impact on the care of other patients, as well as on staff wellbeing. Managers of health services must ensure a safe environment for staff and patients. More importantly, a comprehensive public health approach to changing the prevailing culture that tolerates alcohol-induced unacceptable behaviour is required

Quantum teleportation and entanglement swapping with linear optics logic gates

We report on the usage of a linear optics phase gate for distinguishing all four Bell states simultaneously in a quantum teleportation and entanglement swapping protocol. This is demonstrated by full state tomography of the one and two qubit output states of the two protocols, yielding average state fidelities of about 0.83 and 0.77, respectively. In addition, the performance of the teleportation channel is characterised by quantum process tomography. The non classical properties of the entanglement swapping output states are further confirmed by the violation of a CHSH-type Bell inequality of 2.14 on average.Comment: 11 pages, 3 figure