The Effects of Hydraulic/Pneumatic Fracturing-Enhanced Remediation (FRAC-IN) at a Site Contaminated by Chlorinated Ethenes: a Case Study

2021 ◽  
pp. 125883
Author(s):  
Ondřej Lhotský ◽  
Jan Kukačka ◽  
Jan Slunský ◽  
Kristýna Marková ◽  
Jan Němeček ◽  
...  
Author(s):  
Leila Mahmoudi Farahani ◽  
Marzieh Setayesh ◽  
Leila Shokrollahi

A landscape or site, which has been inhabited for long, consists of layers of history. This history is sometimes reserved in forms of small physical remnants, monuments, memorials, names or collective memories of destruction and reconstruction. In this sense, a site/landscape can be presumed as what Derrida refers to as a “palimpsest”. A palimpsest whose character is identified in a duality between the existing layers of meaning accumulated through time, and the act of erasing them to make room for the new to appear. In this study, the spatial collective memory of the Chahar Bagh site which is located in the historical centre of Shiraz will be investigated as a contextualized palimpsest, with various projects adjacent one another; each conceptualized and constructed within various historical settings; while the site as a heritage is still an active part of the city’s cultural life. Through analysing the different layers of meaning corresponding to these adjacent projects, a number of principals for reading the complexities of similar historical sites can be driven.


10.1068/a3237 ◽  
2000 ◽  
Vol 32 (4) ◽  
pp. 599-616 ◽  
Author(s):  
Elizabeth A Gagen

At the turn of the 20th century, children's play came under new and heightened scrutiny by urban reformers. As conditions in US cities threatened traditional notions of order, reformers sought new ways to direct urban-social development. In this paper I explore playground reform as an institutional response that aimed to produce and promote ideal gender identities in children. Supervised summer playgrounds were established across the United States as a means of drawing children off the street and into a corrective environment. Drawing from literature published by the Playground Association of America and a case study of playground management in Cambridge, MA, I explore playground training as a means of constructing gender identities in and through public space. Playground reformers asserted, drawing from child development theory, that the child's body was a conduit through which ‘inner’ identity surfaced. The child's body became a site through which gender identities could be both monitored and produced, compelling reformers to locate playgrounds in public, visible settings. Reformers' conviction that exposing girls to public vision threatened their development motivated a series of spatial restrictions. Whereas boys were unambiguously displayed to public audiences, girls' playgrounds were organised to accommodate this fear. Playground reformers' shrewd spatial tactics exemplify the ways in which institutional authorities conceive of and deploy space toward the construction of identity.


2017 ◽  
Vol 14 (2) ◽  
pp. 245-270 ◽  
Author(s):  
KATE GUTHRIE

AbstractBy the outbreak of the Second World War in Britain, critics had spent several decades negotiating the supposed distinctions between highbrow and lowbrow culture, as recent scholarship has shown. What has received comparatively little attention is how the demands of wartime living changed the stakes of the debate. This article addresses this lacuna, exploring how war invited a reassessment of the relative merits of art and popular music. Perhaps the most iconic British singer of the period, Vera Lynn provides a case study. Focusing on her first film vehicle,We'll Meet Again(1942), I explore how Lynn's character mediated the highbrow/lowbrow conflict – for example, by presenting popular music as a site of community, while disparaging art music for its minority appeal. In so doing, I argue, the film not only promoted Lynn's star persona, but also intervened in a broader debate about the value of entertainment for a nation at war.


2021 ◽  
Author(s):  
Mathias Neumann ◽  
Hubert Hasenauer

Abstract Competition for resources (light, water, nutrients, etc.) limits the size and abundance of alive trees a site can support. This carrying capacity determines the potential carbon sequestration in alive trees as well as the maximum growing stock. Lower stocking through thinning can change growth and mortality. We were interested in the relations between stand structure, increment and mortality using a long-unmanaged oak-hornbeam forest near Vienna, Austria, as case study. We expected lower increment for heavy thinned compared to unmanaged stands. We tested the thinning response using three permanent growth plots, whereas two were thinned (50% and 70% basal area removed) and one remained unmanaged. We calculated stand structure (basal area, stem density, diameter distribution) and increment and mortality of single trees. The heavy thinned stand had over ten years similar increment as the moderate thinned and unthinned stands. Basal area of the unthinned stand remained constant and stem density decreased due to competition-related mortality. The studied oak-hornbeam stands responded well even to late and heavy thinning suggesting a broad “plateau” of stocking and increment for these forest types. Lower stem density for thinned stands lead to much larger tree increment of single trees, compared to the unthinned reference. The findings of this study need verification for other soil and climatic conditions.


2021 ◽  
Author(s):  
◽  
Elise Caddigan

<p>Old St Paul’s is an iconic New Zealand heritage site managed by Heritage New Zealand.¹ It is a site that tells both national and local stories and draws a wide range of international and domestic visitors. Key recommendations made by the New Zealand Ministry of Tourism in their 2010 and 2015 strategies were that the country is no longer automatically perceived as ‘authentic’² by international visitors, and that heritage in New Zealand should be striving to deliver engaging, educational and rich cultural and social experiences.  Using Old St. Paul’s as a case study, this research asks if New Zealand heritage sites are providing exhibitions, interpretation and stories that successfully communicate the site management’s presentation goals to visitors. This relationship is evaluated through the exhibitions and interpretation used by site management, and compared with visitor understanding and their experience of these.  This research uses interviews and visitor surveys to gauge the management/visitor relationship at Old St. Paul’s. An in-depth interview with the site’s manager is analysed and presented comparatively against the results gained from conducting visitor surveys. This research provides an investigation into contemporary heritage practice in New Zealand and offers a pilot study for future development in the heritage sector. Furthermore, it is suggested that heritage sites could adopt similar summative practices to those used in the museum sector in order to monitor visitor satisfaction and the perception of quality.</p>


2021 ◽  
Author(s):  
Daniel Joseph

Valve Corporation’s digital game distribution platform, Steam, is the largest distributor of games on personal computers, analyzed here as a site where control over the production, design and use of digital games is established. Steam creates and exercises processes and techniques such as monopolization and enclosure over creative products, online labour, and exchange among game designers. Stuart Hall’s encoding/decoding framework places communication at the centre of the political economy, here of digital commodities distributed and produced by online platforms like Steam. James Gibson’s affordance theory allows the market Steam’s owners create for its users to be cast in terms of visuality and interaction design. These theories are largely neglected in the existing literature in game studies, platform studies, and political economy, but they allow intervention in an ongoing debate concerning the ontological status of work and play as distinct, separate human activities by offering a specific focus on the political economy of visual or algorithmic communication. Three case studies then analyze Steam as a site where the slippage between game-play and work is constant and deepening. The first isolates three sales promotions on Steam as forms of work disguised as online shopping. The second is a discourse analysis of a crisis within the community of mod creators for the game Skyrim, triggered by changes implemented on Steam. The third case study critiques Valve Corporation’s positioning of Steam as a new space to extract value from play by demonstrating historical continuity with consumer monopolies. A concluding discussion argues Steam is a platform that evolves to meet distinct crises and problems in the production and circulation of its digital commodities as contradictions arise. Ultimately, Steam shows how the cycle of capital accumulation encourages monopolization and centralization.


Author(s):  
Kara Todd ◽  
Freyja Brandel-Tanis ◽  
Daniel Arias ◽  
Kari Edison Watkins

As transit agencies expand, they may outgrow their existing bus storage and service facilities. When selecting a site for an additional facility, an important consideration is the change in bus deadhead time, which affects the agency’s operating costs. Minimizing bus deadhead time is the subject of many studies, though agencies may lack the necessary software or programming skill to implement those methods. This study presents a flexible tool for determination of bus facility location. Using the R dodgr package, it evaluates each candidate site based on a given bus network and existing depots and calculates the network minimum deadhead time for each potential set of facilities. Importantly, the tool could be used by any transit agency, no matter its resources. It runs on open-source software and uses only General Transit Feed Specification (GTFS) and data inputs readily available to transit agencies in the U.S.A., filling the accessibility gap identified in the literature. The tool is demonstrated through a case study with the Metropolitan Atlanta Rapid Transit Authority (MARTA), which is considering a new bus depot as it builds its bus rapid transit network. The case study used current MARTA bus GTFS data, existing depot locations, and vacant properties from Fulton County, Georgia. The tool evaluated 17 candidate sites and found that the winning site would save 29.7 deadhead hours on a typical weekday, which translates to more than $12,000 daily based on operating cost assumptions. The output provides important guidance to transit agencies evaluating sites for a new bus depot.


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