scholarly journals Probabilistic seismic hazard in the San Francisco Bay area based on a simplified viscoelastic cycle model of fault interactions

2008 ◽  
Vol 113 (B5) ◽  
Author(s):  
Fred F. Pollitz ◽  
David P. Schwartz
Keyword(s):  
Seismic Hazard ◽  
San Francisco ◽  
San Francisco Bay ◽  
San Francisco Bay Area ◽  
Probabilistic Seismic Hazard ◽  
Cycle Model ◽  
Bay Area ◽  
Fault Interactions

scholarly journals Seismic Hazard Epistemic Uncertainty in the San Francisco Bay Area and Its Role in Performance-Based Assessment

2009 ◽  
Vol 25 (4) ◽  
pp. 733-753 ◽  
Author(s):  
Brendon A. Bradley
Keyword(s):  
Seismic Hazard ◽  
San Francisco ◽  
San Francisco Bay ◽  
San Francisco Bay Area ◽  
Epistemic Uncertainty ◽  
Exceedance Probability ◽  
Seismic Performance Assessment ◽  
Intensity Measures ◽  
Bay Area ◽  
Performance Based Assessment

This paper investigates epistemic uncertainty in the results of seismic hazard analyses for the San Francisco Bay Area and their role in the broader picture of seismic performance assessment. Using the 2002 Working Group on California Earthquake Probabilities earthquake rupture forecast, epistemic uncertainty in the seismic hazard for several different intensity measures and sites in the San Francisco Bay Area is investigated. Normalization of the epistemic uncertainty for various sites and intensity measures illustrates that the uncertainty magnitude can be approximately estimated as a function of the mean exceedance probability. The distribution of the epistemic uncertainty is found to be dependent on the set of alternative ground-motion prediction equations used but is frequently well approximated by the lognormal distribution. The correlation in the hazard uncertainty is observed to be a function of the separation between the two different intensity levels, and a simple predictive equation is proposed based on the data analyzed. Three methods for the propagation of seismic hazard epistemic uncertainty are compared and contrasted using an example of the 30-year collapse probability of a structure. It is observed that, for this example, epistemic uncertainty in the collapse capacity is more influential than that in the seismic hazard.

A Qualitative Study of Ecstasy Sellers in the San Francisco Bay Area

2004 ◽  
Author(s):  
Sheigla Murphy ◽  
Paloma Sales ◽  
Micheline Duterte ◽  
Camille Jacinto
Keyword(s):  
Qualitative Study ◽  
San Francisco ◽  
San Francisco Bay ◽  
San Francisco Bay Area ◽  
Bay Area

Cyborg Jotería Pedagogies: Latinx Drag Queens Leveraging Communication Ecologies in the Age of the Digital and Social Displacement

2020 ◽  
Vol 14 (2) ◽  
pp. 44-66
Author(s):  
José Ramón Lizárraga ◽  
Arturo Cortez
Keyword(s):  
San Francisco ◽  
San Francisco Bay ◽  
San Francisco Bay Area ◽  
Digital Technologies ◽  
Physical World ◽  
Political Issues ◽  
Drag Queen ◽  
Bay Area ◽  
Online Presence ◽  
Drag Queens

Researchers and practitioners have much to learn from drag queens, specifically Latinx queens, as they leverage everyday queerness and brownness in ways that contribute to pedagogy locally and globally, individually and collectively. Drawing on previous work examining the digital queer gestures of drag queen educators (Lizárraga & Cortez, 2019), this essay explores how non-dominant people that exist and fluctuate in the in-between of boundaries of gender, race, sexuality, the physical, and the virtual provide pedagogical overtures for imagining and organizing for new possible futures that are equitable and just. Further animated by Donna Haraway’s (2006) influential feminist post-humanist work, we interrogate how Latinx drag queens as cyborgs use digital technologies to enhance their craft and engage in powerful pedagogical moves. This essay draws from robust analyses of the digital presence of and interviews with two Latinx drag queens in the San Francisco Bay Area, as well as the online presence of a Xicanx doggie drag queen named RuPawl. Our participants actively drew on their liminality to provoke and mobilize communities around socio-political issues. In this regard, we see them engaging in transformative public cyborg jotería pedagogies that are made visible and historicized in the digital and physical world.

scholarly journals Elegy

2016 ◽  
Vol 6 (4) ◽  
pp. 6-9
Author(s):  
David L. Ulin
Keyword(s):  
San Francisco ◽  
San Francisco Bay ◽  
San Francisco Bay Area ◽  
Early Adulthood ◽  
Bay Area ◽  
Experience Of Time

Traversing the kaleidoscope of memory of early adulthood in the San Francisco bay area, David Ulin describes the places as he remembers them with picturesque account: Andrew Molera State Park, Fort Mason, Marin Headlands, Old Waldorf, and Sutro Tower, with the particulars, and what happened to his experience of time in those places that summer of 1980. Experienced as a series of fleeting memories, joining together with others who lived there for a time. They left, and so did the author, experiencing the power of temporality or “abandon” both in and from this place.

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