Electrochemical study of aluminum corrosion in boiling high purity water

Electrochemical study of aluminum corrosion in boiling high-purity water includes an equation relating current and electrochemical potential derived on the basis of a physical model of the corrosion process. The work involved an examination of the cathodic polarization behavior of 1100 aluminum during aqueous oxidation

Moments of excess: Type 1 diabetes and the myth of control in adolescent fiction for girls

This thesis is the first academic work to analyze the stories of the Type 1 diabetic teen girls of adolescent fiction. In novels for adolescent readers, these girls are often White, female, heterosexual, and middle class—resulting in a collective disability narrative that portrays an “every girl” and lacks cultural or political dimensions. This thesis explores the narratives of five fictional teen protagonists with Type 1 diabetes. They are: Stacey McGill from the Baby-Sitters Club series by Ann M. Martin, Rachel Deering in Lurlene McDaniel’s Will I Ever Dance Again? (1982), Mackenzie “Zie” Clark in Sarah White’s Let Me List the Ways (2018), Lucy Szabo in Pete Hautman’s Sweetblood (2003), and Virginia “Dare” Chase in Sarah Glenn Marsh’s The Girls Are Never Gone (2021). In these novels, diabetes is often made visible through moments of crisis—exemplifying what disability scholars David Mitchell and Sharon Snyder (2000) refer to as “disability as a material metaphor,” and ultimately furthering what American author Jeffery Bennett (2019) refers to as diabetes’ “crisis of signification.

Patterns of silver eel (Anguilla anguilla L.) sex ratio in a catchment

Changes in the numbers and size-class structure of European silver eels, Anguilla anguilla, in the River Fre´mur (France) were examined over a 9-year period after installation of downstream eel passes. The number of silver eels migrating downstream peaked in 1999, then decreased strongly and steadily after 2000, reaching relatively low levels. At the same time, a gradual shift in the silver eel sex ratio from a dominance of males (size from 270 to 442 mm, age from 3 to 6 years) to females (size from 366 to 1112 mm, age from 4 to 9 years) was recorded. Possible explanations for the escapement patterns observed are environmental sex determination and the installation of eel passes on the main hydraulic engineering structures in 1992 and 1996

TWO-DIMENSIONAL JOINT INVERSION OF ZTEM™ AND MT PLANE-WAVE EM DATA FOR NEAR SURFACE APPLICATIONS PRESENTED AT SAGEEP 2014

ABSTRACT The performance of two-dimensional (2-D) joint ZTEM™/MT inversion was tested using synthetic brick structures below a hill and valley model. Subsequently, separate and joint inversion of coincident ZTEM and Titan dense array MT data over the Johnston Lake district, Saskatchewan, were performed. A result of this effort is that only very few (e.g., three) MT stations may be needed to correct for background resistivity effects in a ZTEM survey provided the MT sites are appropriately spaced

Urban agriculture: multi-dimensional tools for social development in poor neighbourhoods

For over 30 years, different urban agriculture (UA) experiments have been undertaken in Montreal (Quebec, Canada). The Community Gardening Program, managed by the City, and 6 collective gardens, managed by community organizations, are discussed in this article. These experiments have different objectives, including food security, socialization and education. Although these have changed over time, they have also differed depending on geographic location (neighbourhood). The UA initiatives in Montreal have resulted in the development of a centre with a significant vegetable production and a socialization and education environment that fosters individual and collective social development in districts with a significant economically disadvantaged population. The various approaches attain the established objectives and these are multi-dimensional tools used for the social development of disadvantaged populations.Depuis plus de 30 ans, différentes expériences d’AU ont été tentée à Montréal (Québec, Canada). Le programme des jardins communautaires, géré par la Ville, et 6 jardins collectifs, gérés par des organisations communautaires, sont examinés dans le cadre de cet article.  Ces expériences visent différents objectifs : accroître la sécurité alimentaire, sociabiliser, éduquer, etc. Les objectifs évoluent dans le temps mais aussi selon les quartiers. Notre étude révèle que les initiatives en AU à Montréal sont un lieu de production de légumes non négligeable, un espace pour sociabiliser et un lieu d’éducation favorisant un développement social individuel et collectif des quartiers ayant une forte présence de population économique défavorisée. Les différentes approches atteignent les objectifs identifiés et permettent le développement d’outils multi-facettes favorisant le développement social des populations défavorisées.Durante más de 30 años se han realizado diversos experimentos relacionados con la agricultura urbana en Montreal (Québec, Canadá). Este artículo analiza el Programa de Horticultura Comunitario, gestionado por la ciudad, y 6 huertos colectivos, gestionados por organizaciones comunitarias. Estos experimentos cuentan con objetivos diferentes, entre los que se encuentran la seguridad alimentaria, la socialización y la educación. Con el paso del tiempo estos programas han ido evolucionando. Los proyectos se diferencian según la ubicación geográfica en la que se encuentran (barrios). Las iniciativas de agricultura urbana en Montreal han conseguido el desarrollo de un centro con una importante producción hortícola, así como un contexto de socialización y educación que fomenta el desarrollo social individual y colectivo en las zonas con un importante número de población económicamente desfavorecida. The authors would like to thank Kelly Krater, Mathieu Roy and Julie Richard from Action Communiterre, Magdouda Oudjit from Maison Quartier de Villeray, Delphine Marot and Stéphane Bergeron from the ACSA, Gratia Lapointe from Nutri-Centre LaSalle, Dominique Lacroix from Bouffe-Action de Rosemont and Denis Rousseau from the collective garden La Croisée. We would also like to thank Jean-Marie Chapeau from Centraide, André Pedneault from the City of Montreal and Lucie Sauvé, Canada Chair in Environmental Education at UQAM. This article is in line with several research projects, such as those of the Canada Research Chair in environmental education, which include a research program that highlights the foundations, practices and issues involved in “the educational experience” provided in two collective urban gardens and that of the Institut des sciences de l’environnement and the City of Montreal, which are based on the community gardens program

Recent AEM Case Study Examples of a Full Waveform Time-Domain System for Near-Surface and Groundwater Applications

Early time or high frequency airborne electromagnetic data (AEM) are desirable for shallow sounding or mapping of resistive areas but this poses difficulties due to a variety of issues, such as system bandwidth, system calibration and parasitic loop capacitance. In an effort to address this issue, a continued system design strategy, aimed at improving its early-channel VTEM data, has achieved fully calibrated, quantitative measurements closer to the transmitter current turn-off, while maintaining reasonably optimal deep penetration characteristics. The new design implementation, known as “Full Waveform” VTEM was previously described by Legault et al. (2012). This paper presents some case-study examples of a Full Waveform helicopter time-domain EM system for near-surface application

Gamma Ray Flashes Produced by Lightning Observed at Ground Level by TETRA-II

In its first 2 years of operation, the ground-based Terrestrial gamma ray flash and Energetic Thunderstorm Rooftop Array(TETRA)-II array of gamma ray detectors has recorded 22 bursts of gamma rays of millisecond-scale duration associated with lightning. In this study, we present the TETRA-II observations detected at the three TETRA-II ground-level sites in Louisiana, Puerto Rico, and Panama together with the simultaneous radio frequency signals from the VAISALA Global Lightning Data set, VAISALA National Lightning Detection Network, Earth Networks Total Lightning Network, and World Wide Lightning Location Network. The relative timing between the gamma ray events and the lightning activity is a key parameter for understanding the production mechanism(s) of the bursts. The gamma ray time profiles and their correlation with radio sferics suggest that the gamma ray events are initiated by lightning leader activity and are produced near the last stage of lightning leader channel development prior to the lightning return stroke.Comment: 10 pages, 9 figure

Women\u27s experiences on the path to a career in game development

This chapter seeks to identify whether there is a dominant, presupposed career pipeline to a career in game development and then looks for women and women’s experiences at each stage of that pipeline. It concludes that a dominant pipeline does exist and that this pathway both disadvantages women who attempt it and marginalizes other pathways. Along the way women deal with obstacles that can delegitimize their choices and experiences and/or make the assumed pathway inhospitable. This chapter relies on published literature as well as data from the 2014 and 2015 Developer Satisfaction Surveys (DSS) conducted by the International Game Developers Association (IGDA) in partnership with the authors