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Poetry by Derek Beaulie

Atlas Sighed: The 2014 Calgary Biennial

"Atlas Sighed: The 2014 Calgary Biennial was a guerrilla exhibition of contemporary art. Comprising numerous infiltrations into public space, this endeavour appropri- ated commercial vernaculars inherent to the urban landscape in order to challenge conservative status quos." -- p. 2

A Spitzer Transmission Spectrum for the Exoplanet GJ 436b, Evidence for Stellar Variability, and Constraints on Dayside Flux Variations

In this paper we describe a uniform analysis of eight transits and eleven secondary eclipses of the extrasolar planet GJ 436b obtained in the 3.6, 4.5, and 8.0 micron bands using the IRAC instrument on the Spitzer Space Telescope between UT 2007 June 29 and UT 2009 Feb 4. We find that the best-fit transit depths for visits in the same bandpass can vary by as much as 8% of the total (4.7 sigma significance) from one epoch to the next. Although we cannot entirely rule out residual detector effects or a time-varying, high-altitude cloud layer in the planet's atmosphere as the cause of these variations, we consider the occultation of active regions on the star in a subset of the transit observations to be the most likely explanation. We reconcile the presence of magnetically active regions with the lack of significant visible or infrared flux variations from the star by proposing that the star's spin axis is tilted with respect to our line of sight, and that the planet's orbit is therefore likely to be misaligned. These observations serve to illustrate the challenges associated with transmission spectroscopy of planets orbiting late-type stars; we expect that other systems, such as GJ 1214, may display comparably variable transit depths. Our measured 8 micron secondary eclipse depths are consistent with a constant value, and we place a 1 sigma upper limit of 17% on changes in the planet's dayside flux in this band. Averaging over the eleven visits gives us an improved estimate of 0.0452% +/- 0.0027% for the secondary eclipse depth. We combine timing information from our observations with previously published data to produce a refined orbital ephemeris, and determine that the best-fit transit and eclipse times are consistent with a constant orbital period. [ABRIDGED]Comment: 26 pages, 18 figures, 7 tables in emulateapj format. Accepted for publication in Ap

H. N. Werkman

A piece commissioned for COLDFRONT – Singular Vispo :: First Encounters. Artists were asked to talk about their introduction to Visual Poetry and the piece of work that changed the way they saw language

Altered Development of NKT Cells, γδ T Cells, CD8 T Cells and NK Cells in a PLZF Deficient Patient

In mice, the transcription factor, PLZF, controls the development of effector functions in invariant NKT cells and a subset of NKT cell-like, γδ T cells. Here, we show that in human lymphocytes, in addition to invariant NKT cells, PLZF was also expressed in a large percentage of CD8+ and CD4+ T cells. Furthermore, PLZF was also found to be expressed in all γδ T cells and in all NK cells. Importantly, we show that in a donor lacking functional PLZF, all of these various lymphocyte populations were altered. Therefore, in contrast to mice, PLZF appears to control the development and/or function of a wide variety of human lymphocytes that represent more than 10% of the total PBMCs. Interestingly, the PLZF-expressing CD8+ T cell population was found to be expanded in the peripheral blood of patients with metastatic melanoma but was greatly diminished in patients with autoimmune disease

White Matter Microstructure Predicts Autistic Traits in Attention-Deficit/Hyperactivity Disorder

Traits of autism spectrum disorder (ASD) in children with attention-deficit/hyperactivity disorder (ADHD) have previously been found to index clinical severity. This study examined the association of ASD traits with diffusion parameters in adolescent males with ADHD (n = 17), and also compared WM microstructure relative to controls (n = 17). Significant associations (p < 0.05, corrected) were found between fractional anisotropy/radial diffusivity and ASD trait severity (positive and negative correlations respectively), mostly in the right posterior limb of the internal capsule/corticospinal tract, right cerebellar peduncle and the midbrain. No case–control differences were found for the diffusion parameters investigated. This is the first report of a WM microstructural signature of autistic traits in ADHD. Thus, even in the absence of full disorder, ASD traits may index a distinctive underlying neurobiology in ADHD

Linguistics Fragmentation as Political Intervention in Calgarian Poetry

Este artículo trata sobre cómo los poetas Jordan Scott y ryan fitzpatrick rechazan la representación de corte conservador de las provincias de “las praderas” canadienses, y abogan por una poética de lo urbano y por lo que Sianne Ngai ha llamado “poética del desagrado”. A través del uso de una dicción fragmentada, Scott y fitzpatrick crean interrupciones insalvables de lo consumible, construyendo así un lenguaje que desbarata las representaciones típicas de lo rural y lo geográfico. Como poetas de la ciudad de Calgary, se sienten constreñidos ideológicamente por el énfasis político en el crecimiento y la explotación petrolífera, distanciándose a su vez de la urgencia modernista por construir estructuras y significados.This essay deals with how poets Jordan Scott and ryan fitzpatrick reject the conservative prairie representation in favour of a poetics informed by urbanity and Sianne Ngai’s “poetics of disgust.” Using fragmented dictions, Scott and fitzpatrick create unmovable interruptions to the consumable, constructing language which disrupts typical representations of rurality and geography. As Calgarian poets, they are constrained ideologically by the political emphasis on growth and oil exploitation and distance themselves from the Modernist urge to construct either structure or meaning