University rural health clubs: nurturing the future Austalian rural workforce

CONTEXT: Australian university rural health clubs (RHC) are part of a national strategy to address the rural health workforce shortage. The student members of these clubs throughout Australia comprise the National Rural Health Network (NRHN). The NRHN is a multidisciplinary body representing medical, nursing and allied health students, aiming to increase the health workforce and health outcomes for rural and remote Australians. The NRHN and its constituent clubs run a variety of activities to promote rural careers to both school-aged and university students. These have included events at local, state and national levels. ISSUES: The purpose of the present article is to describe the roles and activities of RHC and the NRHN as they aim to contribute towards developing a sustainable rural workforce. Key features of RHC and the NRHN are: (1) providing positive rural experiences; (2) peer promotion of rural health; (3) personal and professional development; (4) providing a volunteer workforce for rural health initiatives; and (5) cross-disciplinary interaction. The NRHN is currently investigating methods to quantify the impact of the RHC on the career choices of potential rural health professionals. LESSONS LEARNED: The NRHN and its constituent clubs are student-driven initiatives occupying a unique place in addressing the rural workforce shortage. Although little formal evidence exists for their success, the issues raised in this article illustrate their importance and broader benefits in this field

Title IX’s Protections for Transgender Student Athletes

This article examines legal authority and policy to determine whether transgender students in K-12 schools must be permitted to participate in athletics according to their gender identity, and without any requirement for medical intervention. The articles concludes that such a policy is consistent with legal authority under Title IX and Title VII and, more importantly, best advances the well-being of already vulnerable transgender youth by helping to incorporate and include such students in activities that are critical to physical, social, mental, emotional development, and health. Part II of this article briefly details the history of Title IX with respect to athletics, including the historical justifications for separating the sexes for purposes of athletic competition, and challenges that have been made to that practice. Part III analyzes the case law that has developed under Title IX and other sex-discrimination laws, which has increasingly recognized that discrimination against transgender people is a cognizable form of sex discrimination. Part IV delves into the possible justifications for barring transgender student-athletes from participating on the team that matches their gender identity, concluding that the purported concerns about safety and privacy have little basis in fact, particularly when applied to students in primary and secondary school. Indeed, for that reason, school districts and athletic associations across the country have begun adopting policies — many of which are described in Part IV, as examples of “best practices” — that allow transgender students to participate on athletic teams based on their gender identity. Finally, Part V looks at the developmental benefits of participation in sports, concluding that equal access to athletic competition is critically important for the well-being of transgender young people

Multi-Modal Spatial Querying

This project investigates the use of two concurrent communication channels, graphics and speech, to achieve a successful interaction between a person and a geographic information system (GIS). The objective is to construct a multi-modal spatial query language in which users interact with a geographic database by drawing sketches of the desired configuration, while simultaneously talking about the spatial objects and the spatial relations drawn. This study will increase our understanding of multi-modal spatial interactions, and will lead to improved strategies for intelligent integration and processing of such multi-modal spatial queries in a GIS. The key to this interaction is the exploitation of complementary or redundant information present in both graphical and verbal descriptions of the same spatial scenes. A multiple-resolution model of spatial relations is used to capture the essential aspects of a sketch and its corresponding verbal description. The model stresses topological properties, such as containment and neighborhood, and considers metrical properties, such as distance and directions, as refinements where necessary. This model enables the retrieval of similar, not only exact, matches between a spatial query and a geographic database. Such new methods of multi-modal spatial querying and spatial similarity retrieval will empower experts as well as novice users to perform easier spatial searches, ultimately providing new user communities access to spatial databases

Exact Results for the Bipartite Entanglement Entropy of the AKLT spin-1 chain

We study the entanglement between two domains of a spin-1 AKLT chain subject to open boundary conditions. In this case the ground-state manifold is four-fold degenerate. We summarize known results and present additional exact analytical results for the von Neumann entanglement entropy, as a function of both the size of the domains and the total system size for {\it all} four degenerate ground-states. In the large $l,L$ limit the entanglement entropy approaches $\ln(2)$ and $2\ln(2)$ for the $S^z_T=\pm 1$ and $S^z_T=0$ states, respectively. In all cases, it is found that this constant is approached exponentially fast defining a length scale $\xi=1/\ln(3)$ equal to the known bulk correlation length.Comment: 11 pages, 3 figure

The curious nonexistence of Gaussian 2-designs

2-designs -- ensembles of quantum pure states whose 2nd moments equal those of the uniform Haar ensemble -- are optimal solutions for several tasks in quantum information science, especially state and process tomography. We show that Gaussian states cannot form a 2-design for the continuous-variable (quantum optical) Hilbert space L2(R). This is surprising because the affine symplectic group HWSp (the natural symmetry group of Gaussian states) is irreducible on the symmetric subspace of two copies. In finite dimensional Hilbert spaces, irreducibility guarantees that HWSp-covariant ensembles (such as mutually unbiased bases in prime dimensions) are always 2-designs. This property is violated by continuous variables, for a subtle reason: the (well-defined) HWSp-invariant ensemble of Gaussian states does not have an average state because the averaging integral does not converge. In fact, no Gaussian ensemble is even close (in a precise sense) to being a 2-design. This surprising difference between discrete and continuous quantum mechanics has important implications for optical state and process tomography.Comment: 9 pages, no pretty figures (sorry!

Observations of Outflowing UV Absorbers in NGC 4051 with the Cosmic Origins Spectrograph

We present new Hubble Space Telescope (HST)/Cosmic Origins Spectrograph observations of the Narrow-Line Seyfert 1 galaxy NGC 4051. These data were obtained as part of a coordinated observing program including X-ray observations with the Chandra/High Energy Transmission Grating (HETG) Spectrometer and Suzaku. We detected nine kinematic components of UV absorption, which were previously identified using the HST/Space Telescope Imaging Spectrograph. None of the absorption components showed evidence for changes in column density or profile within the \sim 10 yr between the STIS and COS observations, which we interpret as evidence of 1) saturation, for the stronger components, or 2) very low densities, i.e., n_H < 1 cm^-3, for the weaker components. After applying a +200 km s^-1 offset to the HETG spectrum, we found that the radial velocities of the UV absorbers lay within the O VII profile. Based on photoionization models, we suggest that, while UV components 2, 5 and 7 produce significant O VII absorption, the bulk of the X-ray absorption detected in the HETG analysis occurs in more highly ionized gas. Moreover, the mass loss rate is dominated by high ionization gas which lacks a significant UV footprint.Comment: 41 pages, 10 Figures; accepted for publication in the Astrophysical Journa