Comment on "Estimates of the Ground Accelerations at Point Reyes Station during the 1906 San Francisco Earthquake" by A. Anooshehpoor, T. H. Heaton, B. Shi, and J. N. Brune

2000 ◽  
Vol 90 (5) ◽  
pp. 1342-1348 ◽  
Author(s):  
J. Zhang
Keyword(s):  
San Francisco ◽  
Point Reyes

Organizational and Financial Considerations of Wildlife Operations During Two Orphan Spills Off California1

1999 ◽  
Vol 1999 (1) ◽  
pp. 989-992
Author(s):  
Peter Gautier ◽  
Kent Bauer ◽  
John Tarpley
Keyword(s):  
San Francisco ◽  
Oil Spill ◽  
Large Scale ◽  
Primary Source ◽  
Coast Guard ◽  
California Department ◽  
Incident Command ◽  
Park Service ◽  
Point Reyes ◽  
The Difference

ABSTRACT In November 1997 and again in January 1998, U.S. Coast Guard Marine Safety Office San Francisco Bay, California Department of Fish and Game Office of Spill Prevention and Response (OSPR), the National Park Service, and the Gulf of the Farallones National Marine Sanctuary responded to “mystery” oil spill incidents in the Point Reyes National Seashore, California area. These spill responses were unique because they were primarily wildlife recovery and rehabilitation operations; very little oil was sighted despite wildlife impacts that rank the event as the fourth worst in California history. A large-scale investigation including the use of multiple laboratories to identify the source of the oil has established a connection between the two spills, but no responsible party has been identified to defray the response costs. As a result of the spills, a significant effort is underway in Northern California to better define the role of wildlife operations within the incident command system and to rethink its organization and protocols. Other lessons to apply to future responses involve the funding issues revolving around the difference between response efforts and natural resource damage assessment when the Oil Spill Liability Trust Fund (OSLTF) is the primary source of funding.

Lower Bounds on Ground Motion at Point Reyes during the 1906 San Francisco Earthquake from Train Toppling Analysis

2019 ◽  
Vol 90 (2A) ◽  
pp. 683-691 ◽  
Author(s):  
Swetha Veeraraghavan ◽  
Thomas H. Heaton ◽  
Swaminathan Krishnan
Keyword(s):  
Ground Motion ◽  
San Francisco ◽  
Lower Bounds ◽  
Point Reyes

Unexpected Directionality of Failures in the 1906 San Francisco Earthquake near Point Reyes Station

2021 ◽  
Author(s):  
Richard Brune ◽  
John G. Anderson ◽  
James N. Brune
Keyword(s):  
San Francisco ◽  
Ground Displacement ◽  
Historical Sources ◽  
Site Investigations ◽  
San Andreas ◽  
Photographic Evidence ◽  
Point Reyes ◽  
The Subject ◽  
Structural Failures ◽  
The Right

Abstract This study investigates the directions of structural failures and toppling near Point Reyes Station during the 1906 San Francisco earthquake (Mw 7.9). We examined archives of the Jack Mason Museum of West Marin History and other historical sources for photographs and other evidence relevant to the dynamics of the 1906 rupture in this area. Using historical maps, site investigations, and previously unpublished photographs, we determined the precise locations and orientations of several structures, including a correction to the orientation of the train that was the subject of previous studies. Based on the photographic evidence and written accounts, we estimate the direction of toppling or collapse of each structure. Nearly all objects found were thrown in a direction approximately parallel to the right-lateral San Andreas fault, and in the same direction as the static ground displacement. This suggests that fault-parallel accelerations may have been stronger than fault-normal accelerations, and that the slip on the fault may have begun slowly and stopped more suddenly.

Ultrastructural Localization of Antigens by Capillary Action Immunocytochemistry

1996 ◽  
Vol 54 ◽  
pp. 40-41
Author(s):  
László G. Kömüves
Keyword(s):  
San Francisco ◽  
Colloidal Gold ◽  
Specific Binding ◽  
Ultrastructural Localization ◽  
Ultrastructural Level ◽  
Uranyl Acetate ◽  
Adhesive Tape ◽  
Distilled Water ◽  
Capillary Action ◽  
Rabbit Igg

Light microscopic immunohistochemistry based on the principle of capillary action staining is a widely used method to localize antigens. Capillary action immunostaining, however, has not been tested or applied to detect antigens at the ultrastructural level. The aim of this work was to establish a capillary action staining method for localization of intracellular antigens, using colloidal gold probes.Post-embedding capillary action immunocytochemistry was used to detect maternal IgG in the small intestine of newborn suckling piglets. Pieces of the jejunum of newborn piglets suckled for 12 h were fixed and embedded into LR White resin. Sections on nickel grids were secured on a capillary action glass slide (100 μm wide capillary gap, Bio-Tek Solutions, Santa Barbara CA, distributed by CMS, Houston, TX) by double sided adhesive tape. Immunolabeling was performed by applying reagents over the grids using capillary action and removing reagents by blotting on filter paper. Reagents for capillary action staining were from Biomeda (Foster City, CA). The following steps were performed: 1) wet the surface of the sections with automation buffer twice, 5 min each; 2) block non-specific binding sites with tissue conditioner, 10 min; 3) apply first antibody (affinity-purified rabbit anti-porcine IgG, Sigma Chem. Co., St. Louis, MO), diluted in probe diluent, 1 hour; 4) wash with automation buffer three times, 5 min each; 5) apply gold probe (goat anti-rabbit IgG conjugated to 10 nm colloidal gold, Zymed Laboratories, South San Francisco, CA) diluted in probe diluent, 30 min; 6) wash with automation buffer three times, 5 min each; 7) post-fix with 5% glutaraldehyde in PBS for 10 min; 8) wash with PBS twice, 5 min each; 9) contrast with 1% OSO4 in PBS for 15 min; 10) wash with PBS followed by distilled water for5 min each; 11) stain with 2% uranyl acetate for 10 min; 12) stain with lead citrate for 2 min; 13) wash with distilled water three times, 1 min each. The glass slides were separated, and the grids were air-dried, then removed from the adhesive tape. The following controls were used to ensure the specificity of labeling: i) omission of the first antibody; ii) normal rabbit IgG in lieu of first antibody; iii) rabbit anti-porcine IgG absorbed with porcine IgG.

Game Changer

2011 ◽  
Vol 20 (1) ◽  
pp. 17-18 ◽  
Author(s):  
Lateef McLeod
Keyword(s):  
San Francisco ◽  
Mobile Technology ◽  
Technology Tools ◽  
Communication Challenges ◽  
Communication Needs ◽  
Game Changer

Abstract Individuals with significant communication challenges need to communicate across many different venues. The author, from the perspective of an individual who uses AAC, discusses the strengths and weaknesses of both traditional AAC technologies and new mobile AAC technologies. He describes how access to AAC has allowed him to fulfill his dreams as a presenter and writer. He successfully manages a blog in San Francisco, writes grants, and has published his first book of poetry. Not one AAC device fits all of his communication needs; however, access to mobile technology tools has increased his flexibility across environments and given him another successful tool for communication.

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