Thematic Analysis of Mainstream Rap Music - Considerations for Culturally Responsive Sexual Consent Education in High School

Background: Much of the research literature on sexual consent and sexual consent education has been focused on college students, providing a significant gap in our understanding of high school students, especially ethnic minority youth, who are at greatest risk for unwanted sexual contact and sexual activity. Furthermore, recent research suggests that music with sexually suggestive and misogynistic themes influence sexual communication and consenting behaviors. An analysis of rap music produced after the year 2000 is necessary to identify themes that may influence sexual communication among youth. Methods: A thematic analysis was conducted to examine the lyrics of mainstream rap music songs. Songs from the Billboard Hot Rap Singles Year-End Charts for the years 2001 through 2011 served as the data corpus for thematic analysis. Results: Each year, an average of 18 songs in the top 25 rap music hits included some level of sexual content. Overall, approximately 74% of the 244 songs made references to sex, sexual expectations and/or relationships. Three major themes emerged from the analysis: (1) It’s Really About Sex or Nothing At All, (2) Substances as the Precursor/Enhancer, and (3) Performance, Parts & Brand. Conclusion: The major themes found here highlight the prevalence of norms that perpetuate non-consensual sex and non-verbal sexual communication in a dominant musical genre. Each theme presented in this study represents rules and expectations related to sexual interactions that could influence an adolescent’s view of sexual communication and consent. Findings here should be further examined to identify how adolescents may perceive them and resonate with their meanings

Optimum design of composite laminates with thermal effects

An analytical approach to determine an optimum laminate for a variety of thermal and mechanical loading combinations is presented. The analysis is performed for a linear elastic material under static mechanical and uniform thermal loadings. The problem is restricted to a unit width and length laminate with angle orientations resulting in an orthotropic, symmetric, and balanced configuration. An objective function defining total strain energy, is formulated and an optimum laminate design determined subject to constraints on stiffness, average coefficient of thermal expansion, and strength. The objective function is formulated in terms of the orientation angles, number of plies, and material properties. The method presented has, in varying degrees, shown that the design of a laminate can be accomplished using strain energy minimization as the primary criteria. The results of various combinations of applied constraints in the optimized design process are presented and discussed

Entanglement and symmetry in permutation symmetric states

We investigate the relationship between multipartite entanglement and symmetry, focusing on permutation symmetric states. We use the Majorana representation, where these states correspond to points on a sphere. Symmetry of the representation under rotation is equivalent to symmetry of the states under products of local unitaries. The geometric measure of entanglement is thus phrased entirely as a geometric optimisation, and a condition for the equivalence of entanglement measures written in terms of point symmetries. Finally we see that different symmetries of the states correspond to different types of entanglement with respect to SLOCC interconvertibility.Comment: 4 pages, 2 figures. Preliminary versions of some of these results were presented in the QIT 16 workshop in Japan, D. Markham, Proceedings of QIT 16, Japan (2007). Updated to reflect changes for publication: expanded proofs and some new examples give

Address by the President, Sir Clements R. Markham, K. C. B.

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DEVELOPMENT OF ACTIONABLE METRICS FOR WATER LOSS REDUCTION IN WATER DISTRIBUTION SYSTEMS

Many water utilities lose significant amounts of treated water (and the revenue that does with it) through pipe breaks or undetected leaks in their underground distribution networks. To help utilities understand their water loss, the American Water Works Association developed a Water Audit Software program which calculates lost volumes and system performance indicators based on input supplied by the water utility. To make the Water Audit Software a more useful tool for a greater number of utilities and the states that mandate auditing, additional fields should be added to the Water Audit Software to collect data about system pipe materials, main line breaks categorized by pipe material, and their average break isolation and repair times. This data should be used to calculate two new PIs: 1) a dimensionless Break Rate Index (BRI) which compares system main line break data to published national break averages, and 2) a dimensionless Repair Time Index (RTI) that compares system main break repair time averages to best practice repair times. Including the BRI and RTI in the audit will identify slow repair times and the types of pipe in a system that have the highest failure rates, thereby providing utilities with immediately useful, actionable information upon the completion of the audit that can be used to improve the distribution system and reduce real water loss. It would also result in the creation of a large-scale main break and repair data set that could be used by local, regional and/or national authorities to develop utility standards

The 30/20 GHz communications system functional requirements

The characteristics of 30/20 GHz usage in satellite systems to be used in support of projected communication requirements of the 1990's are defined. A requirements analysis which develops projected market demand for satellite services by general and specialized carriers and an analysis of the impact of propagation and system constraints on 30/20 GHz operation are included. A set of technical performance characteristics for the 30/20 GHz systems which can serve the resulting market demand and the experimental program necessary to verify technical and operational aspects of the proposed systems is also discussed

New Protocols and Lower Bound for Quantum Secret Sharing with Graph States

We introduce a new family of quantum secret sharing protocols with limited quantum resources which extends the protocols proposed by Markham and Sanders and by Broadbent, Chouha, and Tapp. Parametrized by a graph G and a subset of its vertices A, the protocol consists in: (i) encoding the quantum secret into the corresponding graph state by acting on the qubits in A; (ii) use a classical encoding to ensure the existence of a threshold. These new protocols realize ((k,n)) quantum secret sharing i.e., any set of at least k players among n can reconstruct the quantum secret, whereas any set of less than k players has no information about the secret. In the particular case where the secret is encoded on all the qubits, we explore the values of k for which there exists a graph such that the corresponding protocol realizes a ((k,n)) secret sharing. We show that for any threshold k> n-n^{0.68} there exists a graph allowing a ((k,n)) protocol. On the other hand, we prove that for any k< 79n/156 there is no graph G allowing a ((k,n)) protocol. As a consequence there exists n_0 such that the protocols introduced by Markham and Sanders admit no threshold k when the secret is encoded on all the qubits and n>n_0

VIII. Report on the Cinchona Plantations of Ceylon, in a Letter to the Secretary of State for India

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