Death can\u27t touch them now : AIDS response and memorialization in Louisville, Kentucky, 1982-1992.

This thesis aims to address the role of the queer community in Louisville, Kentucky during the AIDS epidemic. Beginning with the first reported AIDS death in the city in 1983 throughout the 1980s, dialogue focused on those living with AIDS, specifically on education for prevention and aid to those afflicted by the disease. Individuals in the queer community—gay men, lesbians, bisexual men and women, transgender men and women, and others—created resources that were not being provided by the larger city government. Then, in the 1990s, national attention to the AIDS Memorial Quilt encouraged people to participate in rituals of commemoration, loss, and grieving. With the rising incidence rate of the disease in the city, more Louisvillians likewise shifted to memorialization and honoring those who had died. This newfound participation in memorialization, however, was always tied to existing goals of education, awareness, and support that had dominated since the 1980s

The Impact of Intercultural Experiences on Preservice Teachers’ Preparedness to Engage with Diverse Learners

The diversity of student populations globally is increasing more rapidly than the diversity of the teaching workforce. Concerns are that beginning teachers are ill-prepared to meet the needs of the diversity of students in their classrooms. This lack of preparedness has been partially attributed to inadequate preparation within teacher education programs. We advocate that preservice teachers need to understand how their prior intercultural experiences can be utilised to better prepare them for teaching diverse groups of learners. This qualitative study (n=40) draws on Hammer’s (2009) Intercultural Development Continuum to explore the impact that these experiences have on shaping preservice teachers as teachers of diversity. We use the data to illustrate the breadth of positioning on the IDC of these preservice teachers. Findings indicate that prior quality engagement with diversity over time enhances preservice teachers’ intercultural competence. We describe how teacher education can better prepare preservice teachers for engaging diverse learners

The specialized thoracic skeletomuscular system of the myrmecophile Claviger testaceus (Pselaphinae, Staphylinidae, Coleoptera)

External and internal structures of the thorax of the myrmecophile beetle Claviger testaceus (Clavigeritae, Pselaphinae) were examined and documented with state-of-the-art visualization techniques. Following a general trend in the omaliine lineage (Staphylinidae), the skeletal elements of the pro- and pterothorax in Claviger reach a maximum degree of compactness, with largely reduced inter- and intrasegmental sutures and skeletal elements linked with the flight apparatus. The musculature, especially metathoracic direct and indirect flight muscles, also shows a high degree of reduction. Two forms of wings were found among individuals of C. testaceus, both non-functional and representing an advanced stage of reduction. However, that wing vestiges are still present and the metanotum, only slightly reduced, suggests that loss of flight in this species is likely the result of a young evolutionary process. Several structures are linked with myrmecophilous habits: small body size facilitates transportation of beetles by ant workers and makes it easier to move inside nest tunnels; the remarkably compact body and mechanically robust appendages make the beetles less vulnerable to attacks by ant mandibles; the improved elytral interlocking mechanism and unusually expanded epipleura enhance the protection of vulnerable dorsal parts of the pterothorax and anterior abdomen; and glands associated with trichomes on the posterolateral elytral angle produce secretions attractive for ants. Various modifications of the thorax and anterior abdomen lead to an optimization of intimate associations with ants. The morphological syndrome enabling these beetles to cope with life in ant colonies evolved in several steps. This is suggested by an increasing solidification of the thoracic skeleton in related non-myrmecophilous groups and also by less modified related clavigerites;for instance, ant-associated tropical species are still able to fly.Introduction Materials and methods - Studied species - Light microscopy - Micro-computed tomography (μCT) - Scanning electron microscopy (SEM) - Terminology Results - Prothorax - Pterothorax - Anterior abdominal segments Discussion - Phylogenetic background - Musculature - Elytral locking system and flightlessness - Myrmecophilous habits Conclusion

Detector for imaging of explosions: present status and future prospects with higher energy X-rays

The detector for imaging of explosions (DIMEX) is in operation at the synchrotron radiation (SR) beam-line at VEPP-3 electron ring at Budker INP since 2002. DIMEX is based on one-coordinate gas ionization chamber filled with Xe-CO2(3:1) mixture at 7atm, and active Frisch-grid made of Gas Electron Multiplier (GEM). The detector has spatial resolution of ~0.2mm and dynamic range of ~100 that allows to realize the precision of signal measurement at a percent level. The frame rate can be tuned up to 8 MHz (125 ns per image) and up to 32 images can be stored in one shot. At present DIMEX is used with the X-ray beam from 2T wiggler that has ~20 keV average energy. Future possibility to install similar detector at the SR beam-line at VEPP-4 electron ring is discussed.Comment: 14 pages, 15 figures. Submitted to JINS

The Best Democracy Money Can Buy: NCLB in Bush\u27s Neo-liberal Marketplace (a.k.a., Revisioning History: The Discourses of Equality, Justice and Democracy Surrounding NCLB)

With the landmark passage of No Child Left Behind (NCLB) in January 2002, a new era of accountability, standards, and sanctions have become solid fixtures in public education (see Cross, 2004; McGuinn, 2005; and McGuinn, 2006 for an extensive discussion of the evolution of standards in US public education). The implications of this federal mandate were viewed differently, depending upon the perspective of the viewer. Regardless, there has been and continues to be a great deal of skepticism regarding NCLB’s ability to change the educational experiences of children and youth, particularly those of poor and minority students (Fusarelli, 2004; Kantor & Lowe, 2006; Rogers & Oakes, 2005). Further, the political discourse surrounding NCLB has been very charged since its inception, with different camps supporting the legislation as an extension of the Brown decision (and hence, the realization of equality in US society), while others have decried it as discriminatory, marginalizing, and undemocratic (see for instance, Kozol, 2005; Paige, 2006; Slavin, 2006; and Stiefel, Schwartz, & Chellman, 2007 for examples of these different arguments). It is these arguments surrounding equality/equity, social justice, democracy (and education for democracy), and NCLB that this article will examine. Using the speeches of Secretaries of Education Roderick Paige and Margaret Spellings, we will illustrate how the federal government and NCLB, the federal education policy driving US public education, frames the notions of equality/equity, justice, and democracy to reflect the Administration’s conservative and market-driven ideologies. By engaging in an iterative process of critical discourse analysis, we will illustrate how the message conveyed regarding NCLB remains the same, even as the audience changes. As a result, the Bush Administration has been able to galvanize support across multiple communities, while simultaneously silencing opposition

Extensive collection of femtoliter pad secretion droplets in beetle Leptinotarsa decemlineata allows nanoliter microrheology

Pads of beetles are covered with long, deformable setae, each ending in a micrometric terminal plate coated with secretory fluid. It was recently shown that the layer of the pad secretion covering the terminal plates is responsible for the generation of strong attractive forces. However, less is known about the fluid itself because it is produced in extremely small quantity. We here present a first experimental investigation of the rheological properties of the pad secretion in the Colorado potato beetle {\it Leptinotarsa decemlineata}. Because the secretion is produced in an extremely small amount at the level of the terminal plate, we first develop a procedure based on capillary effects to collect the secretion. We then manage to incorporate micrometric beads, initially in the form of a dry powder, and record their thermal motion to determine the mechanical properties of the surrounding medium. We achieve such a quantitative measurement within the collected volume, much smaller than the $1 {\rm \mu}$l sample volume usually required for this technique. Surprisingly, the beetle secretion was found to behave as a purely viscous liquid, of high viscosity. This suggests that no specific complex fluid behaviour is needed during beetle locomotion. We build a scenario for the contact formation between the spatula at the setal tip and a substrate, during the insect walk. We show that the attachment dynamics of the insect pad computed from the high measured viscosity is in good agreement with observed insect pace. We finally discuss the consequences of the secretion viscosity on the insect adhesion

Stock Price Booms and Expected Capital Gains

Investors' subjective capital gains expectations are a key element explaining stock price fluctuations. Survey measures of these expectations display excessive optimism (pessimism) at market peaks (troughs). We formally reject the hypothesis that this is compatible with rational expectations. We then incorporate subjective price beliefs with such properties into a standard asset-pricing model with rational agents (internal rationality). The model gives rise to boom-bust cycles that temporarily delink stock prices from fundamentals and quantitatively replicates many asset-pricing moments. In particular, it matches the observed strong positive correlation between the price dividend ratio and survey return expectations, which cannot be matched by rational expectations

Wonderfully weird: the head anatomy of the armadillo ant, Tatuidris tatusia (Hymenoptera: Formicidae: Agroecomyrmecinae), with evolutionary implications

Tatuidris tatusia Brown & Kempf, 1968, the armadillo ant, is a morphologically unique species found in low to high elevation forests in regions of Central and South America. It is one of only two extant representatives of the subfamily Agroecomyrmecinae, and very little is known about the biology of these ants, which are almost exclusively collected from leaf litter and have rarely been seen alive. Here, we illuminate the functional morphology and evolution of this species via detailed anatomical documentation of their exceptionally modified head. We describe and illustrate the skeletomuscular system, digestive tract, and cephalic glands based on high-resolution micro-computed tomography scan data. We hypothesize that the modifications which produce the unusual “shield-like” head shape are the result of complex optimizations for mandibular power, physical protection, and balance. The most conspicuous cephalic features are the broadening of the frontal region and foreshortening of the postgenal region. The former characteristic is likely also associated with the lateral position of the antennal scrobe, the inverted antennal articulation, and the broad attachment surface for the mandibular adductor muscles. This head geometry also comes with a degree of internal restructuring of the tentorium and the antennal musculature, which have a unique configuration among ants studied so far. The mandibular blades, and their articulations and muscles, are highly distinctive compared with previously evaluated species. Using a 3D-printed model, we were able to hypothesize their entire range of motion as the mandibles fit tightly into the oral foramen. Finally, we compare T. tatusia across other related subfamilies and discuss the evolution of the Agroecomyrmecinae and other species-poor and phylogenetically isolated “relictual” lineages.journal articl

Rapid and selective absorption of plant defense compounds from the gut of a sequestering insect

Many herbivorous insects exploit defense compounds produced by their host plants for protection against predators. Ingested plant defense compounds are absorbed via the gut epithelium and stored in the body, a physiological process that is currently not well understood. Here, we investigated the absorption of plant defense compounds from the gut in the horseradish flea beetle, Phyllotreta armoraciae, a specialist herbivore known to selectively sequester glucosinolates from its brassicaceous host plants. Feeding experiments using a mixture of glucosinolates and other glucosides not found in the host plants showed a rapid and selective uptake of glucosinolates in adult beetles. In addition, we provide evidence that this uptake mainly takes place in the foregut, whereas the endodermal midgut is the normal region of absorption. Absorption via the foregut epithelium is surprising as the apical membrane is covered by a chitinous intima. However, we could show that this cuticular layer differs in its structure and overall thickness between P. armoraciae and a non-sequestering leaf beetle. In P. armoraciae, we observed a thinner cuticle with a less dense chitinous matrix, which might facilitate glucosinolate absorption. Our results show that a selective and rapid uptake of glucosinolates from the anterior region of the gut contributes to the selective sequestration of glucosinolates in P. armoraciae