Ongoing outbreak of Newcastle disease in Southern California, United States

Author(s):  
Caitlin Jandegian ◽  
Heather Allen ◽  
Jon Zack
1997 ◽  
Vol 87 (3) ◽  
pp. 606-619 ◽  
Author(s):  
Harley M. Benz ◽  
Arthur Frankel ◽  
David M. Boore

Abstract Measurements of the Fourier amplitude spectra of Lg phases recorded at high frequency (0.5 to 14.0 Hz) by broadband seismic stations are used to determine regional attenuation relationships for southern California, the Basin and Range Province, the central United States, and the northeastern United States and southeastern Canada. Fourier spectral amplitudes were measured every quarter octave from Lg phases windowed between 3.0 and 3.7 km sec−1 and recorded in the distance range of 150 to 1000 km. Attenuation at each frequency is determined by assuming a geometrical spreading exponent of 0.5 and inverting for Q and source and receiver terms. Both southern California and the Basin and Range Province are well described by low Lg Q and frequency-dependent attenuation. Lg spectral amplitudes in southern California are fit at low frequencies (0.625 to 0.875 Hz) by a constant Lg Q of 224 and by a frequency-dependent Lg Q function Q = 187−7+7f0.55(±0.03) in the frequency band 1.0 to 7.0 Hz. The Basin and Range Province is characterized by a constant Lg Q of 192 for frequencies of 0.5 to 0.875 Hz and by the frequency-dependent Lg Q function Q = 235−11+11f0.56(±0.04) in the frequency band 1.0 to 5.0 Hz. A change in frequency dependence above 5.0 Hz is possible due to contamination of the Lg window by Pn and Sn phases. Lg spectral amplitudes in the central United States are fit by a mean frequency-independent Lg Q of 1291 for frequencies of 1.5 to 7.0 Hz, while a frequency-dependent Lg Q of Q = 1052−83+91(f/1.5)0.22(±0.06) fits the Lg spectral amplitudes for the northeastern United States and southeastern Canada over the passband 1.5 to 14.0 Hz. Attenuation measurements for these areas were restricted to frequencies >1.5 Hz due to larger microseismic noise levels at the lower frequencies.


2016 ◽  
Vol 18 (1) ◽  
pp. 207
Author(s):  
Diana De Groat Brown

http://dx.doi.org/10.5007/2175-8034.2016v18n1p207Neste artigo são explorados os anos de exílio de Guerreiro Ramos nos Estados Unidos (1966-1982), questionando como um intelectual esquerdista brasileiro, de ascendência africana, lidou com o clima social e político dos Estados Unidos nesse período. O foco está em duas questões: sua carreira na Escola de Administração Pública da University of Southern California (USC), onde ele permaneceu até sua morte, e sua relação, como um brasileiro de cor, com a política racial radical nos Estados Unidos nesse período. Argumenta-se que, na USC, o pragmatismo e a habilidade de Guerreiro Ramos de produzir sucesso em circunstâncias adversas, aprendidos durante sua carreira no Brasil, possibilitaram-lhe fazer o mesmo na USC – transformar a adversidade do exílio em um sucesso criativo equiparável. Seu brilho e carisma como intelectual e como professor granjearam-lhe admiração, respeito, popularidade e uma carreira acadêmica segura. Sua criatividade e abertura a novas ideias permitiram-lhe abraçar o campo da sociologia americana, mesmo quando continuava a se opor ao imperialismo americano e a trazer a sociologia para a crítica da administração pública americana. Quanto a sua relação com a política racial americana desse período, mesmo no Brasil, ele já havia se afastado do engajamento anterior com as questões raciais e isso continuou nos Estados Unidos. A especulação aqui é que sua identidade como um estrangeiro exótico o protegeu de sofrer, diretamente, a discriminação racial direcionada aos afro-americanos. Finalmente, seu exílio aumentou seu senso de ser um “de fora”, um “homem entre parêntesis” tanto no Brasil como nos Estados Unidos.


2018 ◽  
Vol 30 (4) ◽  
pp. 493-494 ◽  
Author(s):  
Francisco R. Carvallo ◽  
Janet D. Moore ◽  
Akinyi C. Nyaoke ◽  
Linda Huang ◽  
Beate M. Crossley ◽  
...  

1987 ◽  
Vol 1 (1) ◽  
pp. 2-9 ◽  
Author(s):  
Gene D. Wills

Both purple nutsedge (Cyperus rotundusL. # CYPRO) and yellow nutsedge (C. esculentusL. # CYPES) are problem weeds in crops in many parts of the world. Yellow nutsedge is found in all U.S. states. Purple nutsedge is confined to the southern region of the United States, ranging from North Carolina across southern Arkansas and into southern California.


Author(s):  
Peter Alilunas

Chapter one examines the early history of adult video from a variety of technological, cultural, and industrial perspectives beginning with the Panoram, a device invented in the 1940s and completely unintended for pornography. Following is an analysis of the adult motel landscape of Southern California, an early site of adult video distribution. The chapter concludes with a history of the early pioneers of adult video, including George Atkinson, who created the first video rental store in the United States.


Zootaxa ◽  
2019 ◽  
Vol 4544 (4) ◽  
pp. 548
Author(s):  
ALAN F. BURKE ◽  
JOHN M. JR. LEAVENGOOD ◽  
CLARKE H. SCHOLTZ ◽  
CATHERINE L. SOLE

Bostrichoclerus bicornus Van Dyke is known from southwest United States and northwest Mexico. To date, only two specimens have been captured: the holotype, collected on Isla Angel de la Guarda, in the Gulf of California, Mexico, and a second individual collected in San Bernardino County, California, United States. The original description of B. bicornus is brief and lacks any images. Considering its rarity, we present the redescription of this species based on the examination of the holotype and compare this taxon to similar genera of New World Tillinae. Images of the holotype and the Bostrichoclerus specimen collected in southern California are given. We conclude that B. bicornus is undoubtedly a member of the subfamily Tillinae with unclear intergeneric relations in the group. 


Weed Science ◽  
1984 ◽  
Vol 32 (3) ◽  
pp. 353-359 ◽  
Author(s):  
Carol N. Somody ◽  
John D. Nalewaja ◽  
Stephen D. Miller

Wild oat (Avena fatuaL. ♯3AVEFA) andAvena sterilisL. ♯ AVEST accessions from the United States were screened for tolerance to diallate [S-(2,3-dichloroallyl) diisopropylthiocarbamate], triallate [S-(2,3,3-trichloroallyl) diisopropylthiocarbamate], barban (4-chloro-2-butynylm-chlorocarbanilate), diclofop {2-[4-(2,4-dichlorophenoxy) phenoxy] propanoic acid}, difenzoquat (1,2-dimethyl-3,5-diphenyl-1H-pyrazolium), flamprop [N-benzoyl-N-(3-chloro-4-fluorophenyl)-DL-alanine], and MSMA (monosodium methanearsonate). Some accessions were tolerant to more than one herbicide but none were tolerant to all herbicides. Tolerance to a herbicide was not restricted to certain areas of origin of the accessions, and tolerant accessions occurred even in locations that had not been treated previously with the herbicide. In general, accessions from Southern California and Arizona were shorter, produced more tillers, and required the least number of days to panicle emergence. However, accessions from within individual areas were nearly as variable in these characteristics as the entire 1200 accessions. Tolerance of accessions to flamprop, difenzoquat, MSMA, and diclofop was not due to low leaf surface area, since the tolerant accessions usually had the most leaf surface area. All the accessions tolerant to difenzoquat, MSMA, and flamprop, and three of the four accessions tolerant to diclofop, tillered less than the susceptible accessions.


Urban Studies ◽  
2020 ◽  
Author(s):  
James Zarsadiaz

Asians and Asian Americans are the most suburbanized people of color in the United States. While Asians and Asian Americans have been moving to the metropolitan fringe since the 1940s, their settlement accelerated in the 1970s, 1980s, and 1990s. This was partly the result of relaxed US immigration policies following the 1965 Hart-Celler Act. Globalization and burgeoning transnational economies across the so-called Pacific Rim also encouraged outmigration. Whether it is Korean or Indian immigrants in northern New Jersey or Vietnamese refugees in suburban Houston, Asians and Asian Americans have shifted Americans’ understandings of “typical” suburbia. In the late 1980s, academic researchers and policymakers started paying closer attention to this phenomenon, especially in Southern California, where Asians and Asian Americans often clustered together in select suburbs. Sociologists, in particular, observed how greater Los Angeles’s economic, political, and built landscapes changed as immigrants and refugees—predominantly from Hong Kong, Taiwan, the Philippines, South Korea, India, and Vietnam—established roots throughout the region, including Orange County. Since then, other studies of heavily populated Asian and Asian American ethnic suburbs—or “ethnoburbs”—have emerged, including research on New York City, Boston, and Washington, DC. Nonetheless, scholarship remains focused on Southern California, the San Francisco Bay Area, and other hubs of the metropolitan West Coast. Research and scholarship on Asians and Asian Americans living in the suburbs has grown over the last decade. This is partly a response to demographic shifts occurring beyond the coasts. Moreover, geographers, historians, and urban planners have joined the discussion, producing critical studies on race, class, architecture, and political economy. Despite the breadth and depth of recent research, literature on Asian and Asian American suburbanization remains limited. There is thus much room for additional research on this subject, given a majority of Asians and Asian Americans in the United States live outside city limits.


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