Linda Vista Research Articles

∂ Topological Landscapes

∂ Topological Landscapes (2015–ongoing) is a multisensory environment that comprises three projects, all based on research into the controversial healing instruments designed by Southern California inventor Royal Raymond Rife (Nebraska, 1888–California, 1971). Rife’s early twentieth-century scientific work involved light microscopy, frequency theory, and the concept of pleomorphism, which he applied to study formal differentiation in viral cells. One of Rife’s aims was to develop methods and mechanisms that would allow him to use frequencies to kill viruses. ∂ (curly d) is the symbol for ‘boundary’ in general topology. In this research, it is employed as a mathematical symbol that links the study of shifting material surfaces with an inquiry into the fluctuating borders between art and science. It posits that abandoned possibilities in scientific error and failed experiments may harbour other futures. In its three projects, ∂ Topological Landscapes works with different technologies of reproduction using 3D animation, 3D printed sculpture, sonification, and prototype-making to explore findings from various attempts to replicate Rife’s instruments. The necessary information for creating these replications was gathered from the object archive of the Science Museum of London and from the two former sites of the inventor’s research: the Scripps Institute of Oceanography in La Jolla, San Diego, and the Linda Vista Hospital in Los Angeles.

The Privatization of Military Family Housing in Linda Vista, 1944–1956

From its creation as a military housing development to its ultimate transformation into private housing, Linda Vista, in San Diego, ran the ideological spectrum—ranging from a foil for alleged communism, to a repository for proto Right Wing conservatism—simultaneously revealing burgeoning sunbelt politics and the conflict between the housing needs of military families and the anti-public housing ethos of the city's political class. Though the Navy required such projects to house its service personnel and their dependents, the city and many residents sought to eliminate public housing. Linda Vista also demonstrates the intersection of military housing, race, and local politics. For the left, it served as a fortress of political support in the 1940s, but by the 1950s, Linda Vista came to be a Republican stronghold. Ultimately, Linda Vista's shift previewed the New Right conservatism that Sunbelt metropolises would promote in the latter half of the twentieth century.

First Report of Iris yellow spot virus in Onion in Hawaii.

Onion (Allium spp.) production in Hawaii is mostly comprised of green onion and the locally prized sweet bulb onions (Allium cepa L.) that include short- and medium-day cultivars. Iris yellow spot virus (IYSV; family Bunyaviridae, genus Tospovirus) is an important constraint to bulb and seed onion production in many onion-growing regions of the continental United States and the world (3). In June 2010, straw-colored, diamond-shaped lesions with occasional green islands were observed on leaves of sweet onion 'Linda Vista' in an insecticide trial on Maui for onion thrips (Thrips tabaci) control. Collapse and lodging occurred when lesions on leaves were severe. Seven bulbs with green leaves exhibiting lesions were collected from this onion field in the Pulehu Region of the lower Kula District on Maui. Leaf samples that included a lesion or were within 1 cm of a lesion were found to be positive in indirect ELISA with IYSV-specific polyclonal antisera (2). A405nm readings after 1 h ranged from 0.263 to 2.067 for positive samples and 0.055 to 0.073 for healthy onion controls. Four samples that were prepared from leaf tissue several centimeters away from a lesion tested negative in ELISA. Such uneven virus distribution in the plants has been previously reported (4). In July 2010, symptomatic sweet onion from a commercial farm in upper Kula, Maui at the 1,060 to 1,220 m (3,500 to 4,000 foot) elevation tested positive for IYSV by ELISA. Green onion samples collected from a commercial farm in Omaopio, Maui, located approximately 0.8 km (0.5 mile) north of Pulehu, have tested negative, suggesting distribution may be limited at this time. RNA was isolated from leaf tissue from the seven 'Linda Vista' sweet onions collected from the Maui insecticide trial. Reverse transcription (RT)-PCR with forward and complementary primers 5'-CTCTTAAACACATTTAACAAGCAC-3' and 5'-TAAAACAAACATTCAAACAA-3' flanking the nucleocapsid (N) gene encoded by the small RNA of IYSV was conducted as previously described (1). Amplicons approximately 1.1 kb long were obtained from all seven symptomatic onion samples but not from healthy samples or water controls. Sequencing of selected amplicons confirmed IYSV infection. Three sequence variants (GenBank Accession Nos. HM776014-HM776016) were identified from two RT-PCR reactions. Phylogenetic analyses of the three sequence variants with the neighbor-joining procedure available through NCBI-BLASTn Tree View showed that the highest nucleotide identities of 97 to 98% were shared with IYSV isolates from New Zealand (EU477515), Nevada (FJ713699), and northern California (FJ713700). Phylogenetic analyses with the N-gene showed the sequences from Hawaii are most closely related to isolates from the western United States, Texas, and New Zealand. To date, to our knowledge, IYSV has not been detected on the islands of Kauai, Oahu, Molokai, or Hawaii. The distribution and economic consequences of this disease to Hawaii's onion production are under investigation.

Produtividade de cultivares de cebola no Semi-Árido piauiense

Objetivando selecionar e indicar cultivares de cebola mais produtivas para a região semi-árida, conduziu-se um experimento no período de maio a outubro de 1999, sob regime de irrigação por microaspersão no município de Sussuapara, PI. O delineamento estatístico utilizado foi de blocos ao acaso com 18 tratamentos e quatro repetições. As cultivares avaliadas foram: Granex 33, Composto IPA-6, Belém IPA-9, Franciscana IPA-10, Vale Ouro IPA-11, Texas Grano 502, Conquista, Crioula, Serrana, Granex 429, Régia, Princesa, Mercedes, Duquesa, Linda Vista, Piraouro, Granex Ouro e Baia Periforme Precoce. As características avaliadas foram produtividade de bulbos comerciais e não comerciais. Dividiu-se as cultivares em três grupos considerando a produtividade de bulbos, pelo teste de Scott-Knott (P< 0,05). O primeiro grupo apresentou produtividade entre 43,7 t/ha e 40,5 t/ha, com média de 41,9 t/ha. No segundo, a produtividade variou de 39,9 t/ha a 34,6 t/ha e no terceiro de 32,4 t/ha a 26,9 t/ha. As cultivares mais produtivas foram Vale Ouro IPA-11, Franciscana IPA-10 e Mercedes, com respectivamente, 43,7 t/ha, 41,5 t/ha e 40,5 t/ha de bulbos comerciais, respectivamente.

Privacy Survival Guide: How to Take Control of Your Personal Information

Privacy Survival Guide: How to Take Control of Your Personal Information

Linda Vista Revisited: From Indians to Modern-day Pasadenans: Part I

Linda Vista Revisited: From Indians to Modern-day Pasadenans: Part I

The Occupational Use of Hill Space in the Tucson Basin: Evidence from Linda Vista Hill

Recent investigations at the Tucson Basin “trincheras” site of Linda Vista Hill, located adjacent to the large floodplain village site of Los Morteros (AZ AA: 12:57 ASM), have revealed that a substantial number of the rock features there may represent the foundations of habitation structures. Evidence is presented that more than 80 of the Linda Vista trincheras were used as houses, and a mixed residential-agricultural use of the hill is proposed. Clustering of the proposed house foundations is apparent, and it is suggested that the Linda Vista trincheras may represent a restructuring of the Los Morteros community during the transition from the early to late Classic periods. It is suggested that other trincheras sites in the Tucson Basin were also used for residential purposes during the Classic period.

Amino acid racemization dating of Quaternary raised marine terraces in San Diego County, California

The extent of amino acid racemization in Chione, Tivela, Mytilus, and Protothaca shells has been analyzed to estimate ages of seven raised marine terrace sites in San Diego County, California. Sites at Scripps and Crown Point are correlated with the Nestor terrace (120,000 yr old). Sites at Del Mar, Tecolote Creek, and Border Park are estimated to be about 200,000 yr old. A site at Morena Boulevard is somewhat more than 300,000 yr old, and a Linda Vista terrace site is too old to be dated by this method. The ages of terraces derived in this and previous studies demonstrate tectonic activity in the area and suggest the need for reassessment of geomorphic correlations and for comparison of fossil assemblages of similar age for paleobiogeographic interpretation. Amino acid dating is a useful method for estimating the ages of raised marine terraces a few hundred thousand years old.

Marine terrace deformation, san diego county, California

Abstract The NW—SE trending southern California coastline between the Palos Verdes Peninsula and San Diego roughly parallels the southern part and off-shore extension of the dominantly right-lateral, strike-slip, Newport—Inglewood fault zone. Emergent marine terraces between Newport Bay and San Diego record general uplift and gentle warping on the northeast side of the fault zone throughout Pleistocene time. Marine terraces on Soledad Mt. and Point Loma record local differential uplift (maximum 0.17 m/ka) during middle to late Pleistocene time on the southwest side of the fault (Rose Canyon fault) near San Diego. The broad Linda Vista Mesa (elev. 70–120 m) in the central part of coastal San Diego County, previously thought to be a single, relatively undeformed marine terrace of Plio—Pleistocene age, is a series of marine terraces and associated beach ridges most likely formed during sea-level highstands throughout Pleistocene time. The elevations of the terraces in this sequence gradually increase northwestward to the vicinity of San Onofre, indicating minor differential uplift along the central and northern San Diego coast during Pleistocene time. The highest, oldest terraces in the sequence are obliterated by erosional dissection to the northwest where uplift is greatest. Broad, closely spaced (vertically) terraces with extensive beach ridges were the dominant Pleistocene coastal landforms in central San Diego County where the coastal slope is less than 1% and uplift is lowest. The beach ridges die out to the northwest as the broad low terraces grade laterally into narrower, higher, and more widely spaced (vertically) terraces on the high bluffs above San Onofre where the coastal slope is 20–30% and uplift is greatest. At San Onofre the terraces slope progressively more steeply toward the ocean with increasing elevation, indicating continuous southwest tilt accompanying uplift from middle to late Pleistocene time. This southwest tilt is also recorded in the asymmetrical valleys of major local streams where strath terraces occur only on the northeast side of NW—SE-trending valley segments. The deformational pattern (progressively greater uplift to the northwest with slight southwest tilt) recorded in the marine and strath terraces of central and northern coastal San Diego County conforms well with the historic pattern derived by others from geodetic data. It is not known how much of the Santa Ana structural block (between the Newport—Inglewood and the Elsinore fault zones) is affected by this deformational pattern.

Evidence for Pleistocene Man in Southern California

IT IS well known that the sea margin was a superior location for primitive man. In an area so situated that it has remained near the shore despite fluctuations of level, one might expect to find a relatively long and complete record of early man. At LaJolla, Calif, there is such a site. Vertical fluctuations of 300 feet would move the shore line only a small distance laterally-not more than three-quarters of a mile. At the base of the 300-foot scarp of the Linda Vista Mesa is an alluvial fan, now being actively destroyed by wave attack. Exposed in its truncated seaward face, 20 to 30 feet high, is evidence that man lived at La Jolla throughout most, if not all, of the period when the fan was being built.