WorldWideScience

Sample records for angeles million-tree initiative

  1. Implementing municipal tree planting: Los Angeles million-tree initiative.

    Science.gov (United States)

    Pincetl, Stephanie

    2010-02-01

    Urban forests are increasingly being seen as an important infrastructure that can help cities remediate their environmental impacts. This work reports on the first steps in implementing a million tree program in Los Angeles and the ways such a biogenic-living-infrastructure has been approached. Numbers of studies have been done to quantify the benefits of urban forests, but little has been written on the process of implementing urban tree planting programs. The investigative methods were primarily qualitative, involving interviews, attending meetings and conducting literature reviews. Results indicate that multiple nonprofit and city agency programs are involved in planting and maintaining trees and this has required coordination among groups that here-to-fore were unaccustomed to having to collaborate. The main finding that emerge from this research is that the implementation of such a program in Los Angeles is more complicated than it may seem due to several interacting factors: the need to rely on multiple public and private organizations to put trees into the ground and to maintain them; coordination of these multiple efforts must be centralized, but requires a great deal of time and effort and maybe resisted by some of the partners; funding for planting and long term maintenance must be pieced together from multiple sources; acceptance of trees by residents varies by neighborhood as does tree canopy cover; appropriate nursery supply can be limited; the location of the program within the city administration is determined by who initiates the program. PMID:20016982

  2. Implementing Municipal Tree Planting: Los Angeles Million-Tree Initiative

    Science.gov (United States)

    Pincetl, Stephanie

    2010-02-01

    Urban forests are increasingly being seen as an important infrastructure that can help cities remediate their environmental impacts. This work reports on the first steps in implementing a million tree program in Los Angeles and the ways such a biogenic—living—infrastructure has been approached. Numbers of studies have been done to quantify the benefits of urban forests, but little has been written on the process of implementing urban tree planting programs. The investigative methods were primarily qualitative, involving interviews, attending meetings and conducting literature reviews. Results indicate that multiple nonprofit and city agency programs are involved in planting and maintaining trees and this has required coordination among groups that here-to-fore were unaccustomed to having to collaborate. The main finding that emerge from this research is that the implementation of such a program in Los Angeles is more complicated than it may seem due to several interacting factors: the need to rely on multiple public and private organizations to put trees into the ground and to maintain them; coordination of these multiple efforts must be centralized, but requires a great deal of time and effort and maybe resisted by some of the partners; funding for planting and long term maintenance must be pieced together from multiple sources; acceptance of trees by residents varies by neighborhood as does tree canopy cover; appropriate nursery supply can be limited; the location of the program within the city administration is determined by who initiates the program.

  3. Implementing Municipal Tree Planting: Los Angeles Million-Tree Initiative

    OpenAIRE

    Pincetl, Stephanie

    2010-01-01

    Urban forests are increasingly being seen as an important infrastructure that can help cities remediate their environmental impacts. This work reports on the first steps in implementing a million tree program in Los Angeles and the ways such a biogenic—living—infrastructure has been approached. Numbers of studies have been done to quantify the benefits of urban forests, but little has been written on the process of implementing urban tree planting programs. The investigative methods were prim...

  4. CREATING SUSTAINABILITY INDICATORS TO ASSESS THE PHYSICAL, SOCIAL, AND ECONOMIC VALUES OF GREENING CITIES - A STUDY OF THE MILLION TREES INITIATIVES IN LOS ANGELES, CA

    Science.gov (United States)

    At a time of increasing concerns for urban sustainability, what are the physical, social, and economic values of urban forests in semi-arid climates where many of the world’s fastest growing cities are located? Although urban forests are increasingly popular to improve enviro...

  5. Assessing the Effects of the Urban Forest Restoration Effort of MillionTreesNYC on the Structure and Functioning of New York City Ecosystems

    OpenAIRE

    P. Timon McPhearson; Michael Feller; Alexander Felson; Richard Karty; Lu, Jacqueline W.T.; Palmer, Matthew I.; Tim Wenskus

    2010-01-01

    Current forest restoration practices for New York City’s (NYC) MillionTreesNYC Initiative on public parkland include site preparation with extensive invasive species removal and tree and shrub planting with the goal of creating new multi-layered forests. We have launched a long-term investigation of these sites in order to understand the primary physical, chemical, and biological responses of urban ecosystems to MillionTreesNYC forest restoration practices. This research will examine high and...

  6. Assessing the Effects of the Urban Forest Restoration Effort of MillionTreesNYC on the Structure and Functioning of New York City Ecosystems

    Directory of Open Access Journals (Sweden)

    P. Timon McPhearson

    2010-01-01

    Full Text Available Current forest restoration practices for New York City’s (NYC MillionTreesNYC Initiative on public parkland include site preparation with extensive invasive species removal and tree and shrub planting with the goal of creating new multi-layered forests. We have launched a long-term investigation of these sites in order to understand the primary physical, chemical, and biological responses of urban ecosystems to MillionTreesNYC forest restoration practices. This research will examine high and low diversity tree and understory planting combinations in permanent experimental forest restoration plots across NYC. The study assesses how the interactions between soil heterogeneity, plant population dynamics, and forest restoration management strategies drive urban forest ecosystem structure and functioning. Working in collaboration with the NYC Department of Parks & Recreation (NYC Parks and the MillionTreesNYC tree planting campaign, we are examining different restoration strategies to assess how restoration practices affect the ecological development trajectories of newly established forests in NYC.

  7. Initial and repeat mammography screening in a low income multi-ethnic population in Los Angeles.

    Science.gov (United States)

    Bastani, R; Kaplan, C P; Maxwell, A E; Nisenbaum, R; Pearce, J; Marcus, A C

    1995-03-01

    Low income, older, minority women are at high risk for underutilization of screening mammography. One strategy for increasing utilization is to conduct interventions targeting local and state health departments where a majority of these women seek health care. A prerequisite for conducting effective screening programs is to obtain current and accurate information on baseline screening rates to understand the nature and scope of the problem and to plan appropriate intervention strategies. The sample consisted of 3240 women who were 50+ years of age from 2 hospitals and 2 comprehensive health centers operated by the Los Angeles County Department of Health Services. Reviews of medical records indicated that only 21% of the sample had received a mammogram in the 12 months prior to the clinic visit on which they were sampled and 23% of the sample received a mammogram in the following 9 months. Approximately 5% of the total sample received a repeat mammogram in the 21-month period over which they were tracked. Prospective independent predictors of screening were age, number of visits to primary care clinics, number of visits to specialty care clinics, and history of breast abnormalities. The results underscore the importance of implementing programs to increase mammography implementing programs to increase mammography screening within public facilities serving low income multiethnic women. An important finding is that a large number of older women are seen in specialty clinics, which represents an untapped resource for increasing screening in this population. Innovative interventions targeting such specialty clinics could substantially contribute to increasing screening rates. A comprehensive approach targeting system, physician, and patient barriers is recommended. PMID:7742724

  8. Portfolio District Reform Meets School Turnaround: Early Implementation Findings from the Los Angeles Public School Choice Initiative

    Science.gov (United States)

    Marsh, Julie A.; Strunk, Katharine O.; Bush, Susan

    2013-01-01

    Purpose: Despite the popularity of school "turnaround" and "portfolio district" management as solutions to low performance, there has been limited research on these strategies. The purpose of this paper is to address this gap by exploring the strategic case of Los Angeles Unified School District's Public School Choice…

  9. Angel's Wings

    Institute of Scientific and Technical Information of China (English)

    2004-01-01

    @@ Angel's wings had fallen off. It started slowly,a couple of feathers breaking loose in the wind,floating away in carefree spirals, then in clumps in the shower, matted wet and clogging the drain,until one day he woke in a thick layer of white plumage, quills snagging on the stained sheets.

  10. The Los Angeles County Community Disaster Resilience Project - a community-level, public health initiative to build community disaster resilience.

    Science.gov (United States)

    Eisenman, David; Chandra, Anita; Fogleman, Stella; Magana, Aizita; Hendricks, Astrid; Wells, Ken; Williams, Malcolm; Tang, Jennifer; Plough, Alonzo

    2014-08-01

    Public health officials need evidence-based methods for improving community disaster resilience and strategies for measuring results. This methods paper describes how one public health department is addressing this problem. This paper provides a detailed description of the theoretical rationale, intervention design and novel evaluation of the Los Angeles County Community Disaster Resilience Project (LACCDR), a public health program for increasing community disaster resilience. The LACCDR Project utilizes a pretest-posttest method with control group design. Sixteen communities in Los Angeles County were selected and randomly assigned to the experimental community resilience group or the comparison group. Community coalitions in the experimental group receive training from a public health nurse trained in community resilience in a toolkit developed for the project. The toolkit is grounded in theory and uses multiple components to address education, community engagement, community and individual self-sufficiency, and partnerships among community organizations and governmental agencies. The comparison communities receive training in traditional disaster preparedness topics of disaster supplies and emergency communication plans. Outcome indicators include longitudinal changes in inter-organizational linkages among community organizations, community member responses in table-top exercises, and changes in household level community resilience behaviors and attitudes. The LACCDR Project is a significant opportunity and effort to operationalize and meaningfully measure factors and strategies to increase community resilience. This paper is intended to provide public health and academic researchers with new tools to conduct their community resilience programs and evaluation research. Results are not yet available and will be presented in future reports. PMID:25153472

  11. How to select the best tree planting locations to enhance air pollution removal in the MillionTreesNYC initiative.

    Science.gov (United States)

    Morani, Arianna; Nowak, David J; Hirabayashi, Satoshi; Calfapietra, Carlo

    2011-05-01

    Highest priority zones for tree planting within New York City were selected by using a planting priority index developed combining three main indicators: pollution concentration, population density and low canopy cover. This new tree population was projected through time to estimate potential air quality and carbon benefits. Those trees will likely remove more than 10,000 tons of air pollutants and a maximum of 1500 tons of carbon over the next 100 years given a 4% annual mortality rate. Cumulative carbon storage will be reduced through time as carbon loss through tree mortality outweighs carbon accumulation through tree growth. Model projections are strongly affected by mortality rate whose uncertainties limit estimations accuracy. Increasing mortality rate from 4 to 8% per year produce a significant decrease in the total pollution removal over a 100 year period from 11 000 tons to 3000 tons. PMID:21168939

  12. How to select the best tree planting locations to enhance air pollution removal in the MillionTreesNYC initiative

    Energy Technology Data Exchange (ETDEWEB)

    Morani, Arianna [Institute of Agro-Environmental and Forest Biology (IBAF), National Research Council (CNR) Via Salaria km 29300, 00015 Monterotondo Scalo, Roma (Italy); Nowak, David J.; Hirabayashi, Satoshi [USDA Forest Service, Northern Research Station, 5 Moon Library, SUNY-ESF, Syracuse, NY 13210 (United States); Calfapietra, Carlo, E-mail: carlo.calfapietra@ibaf.cnr.it [Institute of Agro-Environmental and Forest Biology (IBAF), National Research Council (CNR) Via Salaria km 29300, 00015 Monterotondo Scalo, Roma (Italy)

    2011-05-15

    Highest priority zones for tree planting within New York City were selected by using a planting priority index developed combining three main indicators: pollution concentration, population density and low canopy cover. This new tree population was projected through time to estimate potential air quality and carbon benefits. Those trees will likely remove more than 10 000 tons of air pollutants and a maximum of 1500 tons of carbon over the next 100 years given a 4% annual mortality rate. Cumulative carbon storage will be reduced through time as carbon loss through tree mortality outweighs carbon accumulation through tree growth. Model projections are strongly affected by mortality rate whose uncertainties limit estimations accuracy. Increasing mortality rate from 4 to 8% per year produce a significant decrease in the total pollution removal over a 100 year period from 11 000 tons to 3000 tons. - Highlights: > The manuscript is part of the IUFRO Special section 'Adaptation of Forest Ecosystems to Air Pollution and Climate Change' (Elena Paoletti and Yusuf Serengil Eds.) approved by William J. Manning. > It has been already peer-reviewed and accepted outside EES. > The reference number of this manuscript is IUFRO49. - Carbon and air pollutant uptake by urban forests are highly influenced by mortality rates.

  13. How to select the best tree planting locations to enhance air pollution removal in the MillionTreesNYC initiative

    International Nuclear Information System (INIS)

    Highest priority zones for tree planting within New York City were selected by using a planting priority index developed combining three main indicators: pollution concentration, population density and low canopy cover. This new tree population was projected through time to estimate potential air quality and carbon benefits. Those trees will likely remove more than 10 000 tons of air pollutants and a maximum of 1500 tons of carbon over the next 100 years given a 4% annual mortality rate. Cumulative carbon storage will be reduced through time as carbon loss through tree mortality outweighs carbon accumulation through tree growth. Model projections are strongly affected by mortality rate whose uncertainties limit estimations accuracy. Increasing mortality rate from 4 to 8% per year produce a significant decrease in the total pollution removal over a 100 year period from 11 000 tons to 3000 tons. - Highlights: → The manuscript is part of the IUFRO Special section 'Adaptation of Forest Ecosystems to Air Pollution and Climate Change' (Elena Paoletti and Yusuf Serengil Eds.) approved by William J. Manning. → It has been already peer-reviewed and accepted outside EES. → The reference number of this manuscript is IUFRO49. - Carbon and air pollutant uptake by urban forests are highly influenced by mortality rates.

  14. ANGEL CAPITAL AND APPLICATIONS IN TURKEY

    Directory of Open Access Journals (Sweden)

    Gözde BİNGÖL

    2016-01-01

    Full Text Available Successful entrepreneurship activity through angel capital that has a long history around the world, is increasing in Turkey day by day although it is new and limited. Angel investors while being wealthy people who take place in an enterprise as core capital, they also supply counsel providing their experience gained from their entrepreneurship activities. Entrepreneurs call these successful people angels because when they are in need, angels give them feedback and contribute to their entrepreneurship significantly. An angel investor is known as one kind of private investor who invests in firms that have a high risk but a high potential to grow. On the other hand, angel investors who provide friendly support with their own experience to entrepreneurs, play a significant role in entrepreneurial finance today. They help entrepre- neurship exist and improve significantly while contributing to economic development. The use of this financing method that the usage in the United States and other countries is spreading rapidly, is also in- creasing steadily in Turkey. Today, we often hear that many of the world-famous firms prefer angel capital financing. This study features initiative and entrepreneurship, entrepreneurial finance and research on angel capital financing. The results of the implementation of a small but growing number of entrepreneurs and angel investors in Turkey are shown in this study with their current direction and contributions.

  15. Applying community engagement to disaster planning: developing the vision and design for the Los Angeles County Community Disaster Resilience initiative.

    Science.gov (United States)

    Wells, Kenneth B; Tang, Jennifer; Lizaola, Elizabeth; Jones, Felica; Brown, Arleen; Stayton, Alix; Williams, Malcolm; Chandra, Anita; Eisenman, David; Fogleman, Stella; Plough, Alonzo

    2013-07-01

    Community resilience (CR) is a priority for preparedness, but few models exist. A steering council used community-partnered participatory research to support workgroups in developing CR action plans and hosted forums for input to design a pilot demonstration of implementing CR versus enhanced individual preparedness toolkits. Qualitative data describe how stakeholders viewed CR, how toolkits were developed, and demonstration design evolution. Stakeholders viewed community engagement as facilitating partnerships to implement CR programs when appropriately supported by policy and CR resources. Community engagement exercises clarified motivations and informed action plans (e.g., including vulnerable populations). Community input identified barriers (e.g., trust in government) and CR-building strategies. A CR toolkit and demonstration comparing its implementation with individual preparedness were codeveloped. Community-partnered participatory research was a useful framework to plan a CR initiative through knowledge exchange. PMID:23678916

  16. Angel For Hire

    OpenAIRE

    Goodby, Nina M.D.; Flynn, Mary K

    2011-01-01

    ANGEL FOR HIRE Directed & Produced by Mary Flynn and Nina Goodby Angel For Hire is a 26-minute documentary that explores the power of the contract in surrogate motherhood arrangements, and the implications of signing away rights to your body in order to bear a child for a stranger. The film follows Angel Patwell through the final weeks of her second surrogate pregnancy as she struggles to turn a breach baby and faces the possibility of a contract- mandated caesarian...

  17. The Los Angeles County Community Disaster Resilience Project — A Community-Level, Public Health Initiative to Build Community Disaster Resilience

    OpenAIRE

    David Eisenman; Anita Chandra; Stella Fogleman; Aizita Magana; Astrid Hendricks; Ken Wells; Malcolm Williams; Jennifer Tang; Alonzo Plough

    2014-01-01

    Public health officials need evidence-based methods for improving community disaster resilience and strategies for measuring results. This methods paper describes how one public health department is addressing this problem. This paper provides a detailed description of the theoretical rationale, intervention design and novel evaluation of the Los Angeles County Community Disaster Resilience Project (LACCDR), a public health program for increasing community disaster resilience. The LACCDR Proj...

  18. The Economic Significance of Business Angels - Towards Comparable Indicators

    OpenAIRE

    Avdeitchikova, Sofia; Landström, Hans

    2014-01-01

    Due to their importance for fostering high-growth entrepreneurship, business angels have over the last decades attracted considerable interest among policy-makers around the world. However, most of the policy initiatives to support business angel investing have been made without any strong empirical basis to guide them. Thus, the research results so far have done little to inform policy-makers regarding – what is the state of business angel market and what (if any) policy action is required? ...

  19. Angel for Hire

    OpenAIRE

    Flynn, Mary K

    2011-01-01

    Angel For Hire explores the implications of signing away one’s bodily rights to bear a stranger’s child. As Angel, a surrogate mother, nears the end of her pregnancy, a complication emerges. Angel faces the possibility of a contract-mandated c-section against her wishes. Also unfolding is the story of a pioneering Michigan-based attorney, Noel Keane. Keane wrote the first surrogacy contract in 1976, a time when the concept of a “surrogate mother” seemed outrageous. That contract lau...

  20. The Los Angeles County Community Disaster Resilience Project — A Community-Level, Public Health Initiative to Build Community Disaster Resilience

    Science.gov (United States)

    Eisenman, David; Chandra, Anita; Fogleman, Stella; Magana, Aizita; Hendricks, Astrid; Wells, Ken; Williams, Malcolm; Tang, Jennifer; Plough, Alonzo

    2014-01-01

    Public health officials need evidence-based methods for improving community disaster resilience and strategies for measuring results. This methods paper describes how one public health department is addressing this problem. This paper provides a detailed description of the theoretical rationale, intervention design and novel evaluation of the Los Angeles County Community Disaster Resilience Project (LACCDR), a public health program for increasing community disaster resilience. The LACCDR Project utilizes a pretest–posttest method with control group design. Sixteen communities in Los Angeles County were selected and randomly assigned to the experimental community resilience group or the comparison group. Community coalitions in the experimental group receive training from a public health nurse trained in community resilience in a toolkit developed for the project. The toolkit is grounded in theory and uses multiple components to address education, community engagement, community and individual self-sufficiency, and partnerships among community organizations and governmental agencies. The comparison communities receive training in traditional disaster preparedness topics of disaster supplies and emergency communication plans. Outcome indicators include longitudinal changes in inter-organizational linkages among community organizations, community member responses in table-top exercises, and changes in household level community resilience behaviors and attitudes. The LACCDR Project is a significant opportunity and effort to operationalize and meaningfully measure factors and strategies to increase community resilience. This paper is intended to provide public health and academic researchers with new tools to conduct their community resilience programs and evaluation research. Results are not yet available and will be presented in future reports. PMID:25153472

  1. The Los Angeles County Community Disaster Resilience Project — A Community-Level, Public Health Initiative to Build Community Disaster Resilience

    Directory of Open Access Journals (Sweden)

    David Eisenman

    2014-08-01

    Full Text Available Public health officials need evidence-based methods for improving community disaster resilience and strategies for measuring results. This methods paper describes how one public health department is addressing this problem. This paper provides a detailed description of the theoretical rationale, intervention design and novel evaluation of the Los Angeles County Community Disaster Resilience Project (LACCDR, a public health program for increasing community disaster resilience. The LACCDR Project utilizes a pretest–posttest method with control group design. Sixteen communities in Los Angeles County were selected and randomly assigned to the experimental community resilience group or the comparison group. Community coalitions in the experimental group receive training from a public health nurse trained in community resilience in a toolkit developed for the project. The toolkit is grounded in theory and uses multiple components to address education, community engagement, community and individual self-sufficiency, and partnerships among community organizations and governmental agencies. The comparison communities receive training in traditional disaster preparedness topics of disaster supplies and emergency communication plans. Outcome indicators include longitudinal changes in inter-organizational linkages among community organizations, community member responses in table-top exercises, and changes in household level community resilience behaviors and attitudes. The LACCDR Project is a significant opportunity and effort to operationalize and meaningfully measure factors and strategies to increase community resilience. This paper is intended to provide public health and academic researchers with new tools to conduct their community resilience programs and evaluation research. Results are not yet available and will be presented in future reports.

  2. Investments in Fallen Angel Stocks

    OpenAIRE

    Mühlfriedel, Bernd

    2012-01-01

    This thesis addresses the research gap with regard to fallen angel stocks, thereby helping investors to make better investment decisions and bringing the investments styles of value and growth closer together. It is the first academic work that provides a systematic and empirically tested approach to investments in fallen angels by establishing a set of indicators to distinguish good (outperforming) from bad (underperforming) fallen angel stocks. Fallen angels are defined as companies with (i...

  3. Los Angeles og San Francisco

    DEFF Research Database (Denmark)

    Ørstrup, Finn Rude

    1998-01-01

    Kompendium udarbejdet til en studierejse til Los Angeles og San Francisco april-maj 1998 Kunstakademiets Arkitektskole, Institut 3H......Kompendium udarbejdet til en studierejse til Los Angeles og San Francisco april-maj 1998 Kunstakademiets Arkitektskole, Institut 3H...

  4. FIRST-ROUND VALUATION OF ANGEL-BACKED COMPANIES: THE ROLE OF INVESTOR HUMAN CAPITAL

    OpenAIRE

    V. COLLEWAERT; S. MANIGART; -

    2009-01-01

    This paper investigates how angel investors’ human capital affects the valuation of their portfolio companies at initial investment, based on the pre-money valuation of 59 investments in young Belgian companies. We show that entrepreneurs are able to negotiate higher valuations with angel investors who have a business degree, more entrepreneurial experience or previous professional law experience. As such, this result is in contrast with the behavior of venture capital investors. Angel invest...

  5. Blue Angel for green electronics

    Energy Technology Data Exchange (ETDEWEB)

    Boettcher-Tiedemann, C.; Jacobs, B. [Federal Environmental Agency, Berlin (Germany)

    2004-07-01

    The Blue Angel was the first eco-label worldwide. It has been in existence for 26 years. For the last 12 years, modern electronic office and communications equipment has been among the products that are eligible for award of the Blue Angel. The Blue Angel eco-label is an important element of integrated product policy and is aimed towards environmentally sound product design. In addition, health aspects are increasingly being taken into account in criteria development. The use of the label gives innovative companies better market opportunities for products so labelled. For consumers and for purchasers in businesses and public administrations, it gives valuable guidance for product purchase. (orig.)

  6. The globalisation of angel investments

    OpenAIRE

    Lerner, Josh; Schoar, Antoinette; Sokolinski, Stanislav; Wilson, Karen

    2015-01-01

    The last decade has seen a rapid expansion and deepening of the types of vehicles that fund start-up firms in the U.S. and worldwide. In particular, we have seen a growing role of angel groups and other more "individualistic" funding options for start-ups, such as super angels or crowd sourcing platforms. We seek to understand the nature and consequences of angel investments across a variety of geographies with varying levels of venture capital markets and other forms of risk capital. We ask ...

  7. Initial results of detected methane emissions from landfills in the Los Angeles Basin during the COMEX campaign by the Methane Airborne MAPper (MAMAP) instrument and a greenhouse gas in-situ analyser

    Science.gov (United States)

    Krautwurst, Sven; Gerilowski, Konstantin; Kolyer, Richard; Jonsson, Haflidi; Krings, Thomas; Horstjann, Markus; Leifer, Ira; Vigil, Sam; Buchwitz, Michael; Schüttemeyer, Dirk; Fladeland, Matthew M.; Burrows, John P.; Bovensmann, Heinrich

    2015-04-01

    the German Research Center for Geoscience (GFZ) in Potsdam. The in-situ measurements were obtained by a greenhouse gas (GHG) in-situ analyser operated by NASA's Ames Research Center (ARC). Both instruments were installed aboard a DHC-6 Twin Otter aircraft operated by the Center for Interdisciplinary Remotely-Piloted Aircraft Studies (CIRPAS). Initial results - including estimated fugitive emission rates - will be presented for the landfill Olinda Alpha in Brea, Orange County, Los Angeles Basin, California, which was overflown on four different days during the COMEX field campaign in late summer 2014.

  8. Angels or demons? You decide!

    CERN Multimedia

    2009-01-01

    The new film Angels & Demons starring Tom Hanks and directed by Ron Howard is being premiered worldwide on 15 May, but you could see it 10 days earlier at a special preview screening as the CERN Press Office has a limited number of tickets to give away. Preview of the new CERN website to be published on 5 May. Opinion is split among CERNois when talking about Dan Brown’s book Angels & Demons. Should he be praised for bringing particle physics into the spotlight or should he be demonised for the ‘creative liberties’ he took - for example, although it would be useful for the international collaborations, CERN doesn’t actually have its own private airport and supersonic jet. But love it or hate it, with the upcoming release of the multi-million dollar Hollywood film adaptation, Angels & Demons will introduce a huge new audience to CERN. "Guess what? – CERN really exists!" said...

  9. Nine bass drawing, Tropical Angel Harps

    OpenAIRE

    Helmlinger, Aurélie

    2011-01-01

    Nine bass drawing, one tone per drum, Tropical Angel Harps panyard, Southern Main Rd, Enterprise, Chaguanas (erreur sur le nom de fichier : " claytones_nine_bass_drawing_1" ; nom correct = " tropical_angel_harps_nine_bass_drawing_1")

  10. Seven bass drawing, Tropical Angel Harps

    OpenAIRE

    Helmlinger, Aurélie

    2011-01-01

    Seven bass drawing, whole tone style, Tropical Angel Harps panyard, Southern Main Rd, Enterprise, Chaguanas (erreur sur le nom de fichier : " claytones_seven_bass_drawing_1" ; nom correct = " topical_angel_harps_seven_bass_drawing_1")

  11. ANGEL CAPITAL AND APPLICATIONS IN TURKEY

    OpenAIRE

    Gözde BİNGÖL; Sibel YILMAZ TÜRKMEN

    2016-01-01

    Successful entrepreneurship activity through angel capital that has a long history around the world, is increasing in Turkey day by day although it is new and limited. Angel investors while being wealthy people who take place in an enterprise as core capital, they also supply counsel providing their experience gained from their entrepreneurship activities. Entrepreneurs call these successful people angels because when they are in need, angels give them feedback and contribute to their entrepr...

  12. Tongues of Men and Angels

    DEFF Research Database (Denmark)

    McGraw, John J.

    2012-01-01

    utter strings of syllables that some claim to be the ‘language of angels.’ Recent neuroimaging studies have highlighted differences in the brains of subjects performing glossolalia in comparison to those same subjects singing a Church hymn. An investigation of the neural correlates of glossolalia...

  13. Angel Investing from the Perspective of the Entrepreneurs in Turkey

    OpenAIRE

    Yilmaz Bayar; Mustafa Halid Karaarslan; Cahid Ozdeveci

    2015-01-01

    Business angels became an important financing source for the enterprises in the early stage of development in the world as of 1960s. However angel investing belatedly emerged in Turkey during the late 2000s. This study examines the angel investing process in Turkey from the perspective of entrepreneurs who benefited from the business angels by making in-depth interviews with 12 entrepreneurs. We found that the business angels are nearly the only financing source for unfinished product and bus...

  14. Housing... the Hillside Los Angeles, California

    OpenAIRE

    Vallen, Michael Earl

    1993-01-01

    Housing... the Hillside Los Angeles, California by Michael Vallen Gregory Hunt, Chairman College of Architecture and Urban Planning (ABSTRACT) This Thesis is a proposal for a prototypical hillside housing community in Los Angeles, California. As a prototype it is responsible for setting an architectural precedent. In this effort, the Thesis continues with focus on issues of construction methodology, urban planning, and land use relationships concerning t...

  15. La Fiesta de Los Angeles: Race, Ethnicity, and History on Parade in Los Angeles, 1894-1903

    OpenAIRE

    Shuen, Rachel

    2014-01-01

    This project uses La Fiesta de Los Angeles, a multiethnic parade, as an entry point into understanding ethnic and race relations in Los Angeles, California from 1894-1903. Expanding upon historical research and theoretical frameworks that explore the intersectionalities of race, gender, class, and nationality within La Fiesta de Los Angeles, this project investigates how the development of a racialized Los Angeles in the late-nineteenth and early-twentieth centuries offers important historica...

  16. Should government support business angel networks? The tale of Danish business angels network

    DEFF Research Database (Denmark)

    Christensen, Jesper Lindgaard

    2011-01-01

    Policies promoting informal venture capital generally and business angel networks (BANs) in particular have gained increased attention in recent years. As a consequence, BANs are now widespread across Europe. However, there continues to be a debate whether BANs should be supported with public money....... This article discusses the possible rationale for governments to support BANs and what criteria to apply when evaluating such networks. The article is based on an in-depth observation study of the whole life cycle of a national BAN – the Danish Business Angel Network (DBAN) – and a comparison with a...... similar national angel network in Wales. Results show that applying traditional evaluation criteria for assessing BANs may provide only a partial picture. DBAN was squeezed between political pressures, impatience and lack of understanding of the broader benefits of an angel network. It was therefore left...

  17. Dante o anjeloch (Dante on Angels

    Directory of Open Access Journals (Sweden)

    Jozef Žilinek

    2007-03-01

    Full Text Available Dante’s eternal Love was Bice Portinari who died in 1290. Dante saw her in Florence in 1274. She was his muse and her death was the reason to write Divine Comedy. We meet her in part of Divine Comedy calledParadise as a guide into Celestial Empire. I have ever been interested in structure of Celestial Empire and mesmerised by Dante. That was the reason to write this paper. I try to re-construct and complete Dante’s interpretation of the hierarchy of Celestial Empire with focusing on angels. Angels are also called Intellects or forms of the Heaven or substances between the Earth and Heaven or blissful Beings. I also try to find out the answer what happened to souls of people who died, especially to souls of innocent children. In memory of Michalka Režnáková (1984-1995.

  18. Do business angels benefit their investee companies?

    OpenAIRE

    Macht, Stephanie; Robinson, John

    2009-01-01

    Abstract: Purpose – Entrepreneurial businesses often face financial and experiential gaps, which can constrain their growth. Business angels (BAs) can provide sources of financial, human and social capital to overcome these gaps. Building on the work by Munck and Saublens, this paper aims to introduce a framework that seeks to provide a detailed understanding of the benefits that BAs can bring to the firms in which they invest. Design/methodology/approach – In order to obtain a detailed u...

  19. Tohoku Women's Hurdling Project: Science Angels (abstract)

    Science.gov (United States)

    Mizuki, Kotoe; Watanabe, Mayuko

    2009-04-01

    Tohoku University was the first National University to admit three women students in Japan in 1913. To support the university's traditional ``open-door'' policy, various projects have been promoted throughout the university since its foundation. A government plan, the Third-Stage Basic Plan for Science and Technology, aims to increase the women scientist ratio up to 25% nationwide. In order to achieve this goal, the Tohoku Women's Hurdling Project, funded by the Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT), was adopted in 2006. This project is threefold: support for child/family, improvement of facilities, and support for the next generation, which includes our Science Angels program. ``Science Angels'' are women PhD students appointed by the university president, with the mission to form a strong support system among each other and to become role-models to inspire younger students who want to become researchers. Currently, 50 women graduate students of the natural sciences are Science Angels and are encouraged to design and deliver lectures in their areas of specialty at their alma maters. Up to now, 12 lectures have been delivered and science events for children in our community have been held-all with great success.

  20. The Film Industry and Urban Development in Metropolitan Los Angeles

    OpenAIRE

    Stephanie Frank

    2012-01-01

    Due north of Culver City and southwest of Hollywood, lies Century City, an icon of midcentury modernism and urban planning (see Figure 2.1). Midcentury modernism in Los Angeles is most closely associated with sleek glass houses in the Hollywood Hills, while Los Angeles midcentury planning evokes images of freeways and the urban renewal scheme that leveled downtown’s Bunker Hill. Absent the freeway building or single - family homes associated with postwar Los Angeles, Century City reconceive...

  1. Urban Health Care in Transition: Challenges Facing Los Angeles County

    OpenAIRE

    Sharon K. Long; Zuckerman, Stephen

    1998-01-01

    The authors examine the Medicaid Section 1115 Demonstration Project currently underway in Los Angeles County. The waiver was designed as part of a response to a financial crisis the Los Angeles County Department of Health Services (LACDHS) faced in 1995. It provides financial relief to give the county time to restructure its system for serving the medically indigent population. Los Angeles County's goal is to reduce its traditional emphasis on emergency room and hospital care by building an i...

  2. The Role and Place of Governing Angels in Bible

    OpenAIRE

    Sayyed hesam aldin Hosseini

    2014-01-01

    Angels have allocated a considerable part of Bible's discussions to themselves and since one of the dogmatic principles of the revealed religions is the belief in angels, depiction of the place and attributes of angels can be the indicator of the quality of attitude and worldview and the strength of dogmatic principles of Bible's followers and justify their thought and ideas; For this subject is related with the issues such as: transcendent unity of divine acts and essence and attributes and ...

  3. Space Radar Image of Los Angeles, California

    Science.gov (United States)

    1994-01-01

    This is a radar image of Los Angeles, California, taken on October 2, 1994. Visible in the image are Long Beach Harbor at the bottom right (south corner of the image), Los Angeles International Airport at the bottom center, with Santa Monica just to the left of it and the Hollywood Hills to the left of Santa Monica. Also visible in the image are the freeway systems of Los Angeles, which appear as dark lines. The San Gabriel Mountains (center top) and the communities of San Fernando Valley, Simi Valley and Palmdale can be seen on the left-hand side. This image was acquired by the Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) aboard the space shuttle Endeavour on its 24th orbit. The image is centered at 34 degrees north latitude, 118 degrees west longitude. The area shown is approximately 100 kilometers by 52 kilometers (62 miles by 32 miles). This single-frequency SIR-C image was obtained by the L-band (24 cm) radar channel, horizontally transmitted and received. Portions of the Pacific Ocean visible in this image appear very dark as do freeways and other flat surfaces such as the airport runways. Mountains in the image are dark grey, with brighter patches on the mountain slopes, which face in the direction of the radar illumination (from the top of the image). Suburban areas, with the low-density housing and tree-lined streets that are typical of Los Angeles, appear as lighter grey. Areas with high-rise buildings, such as downtown Los Angeles, appear in very bright white, showing a higher density of housing and streets which run parallel to the radar flight track. Scientists hope to use radar image data from SIR-C/X-SAR to map fire scars in areas prone to brush fires, such as Los Angeles. In this image, the Altadena fire area is visible in the top center of the image as a patch of mountainous terrain which is slightly darker than the nearby mountains. Using all the radar frequency and polarization images provided by SIR

  4. High Frequency Traders: Angels or Devils?

    OpenAIRE

    Jeffrey MacIntosh

    2013-01-01

    High frequency trading (HFT) is taking world capital markets by storm, notably in the United States and the United Kingdom, where it accounted for about 50 percent of equities trading in 2012, and to a growing extent in other parts of Europe and in Canada. Are high frequency traders angels or devils in terms of the impact on capital markets? Critics claim the latter and charge that they put retail and institutional investors at a disadvantage. Critics also blame high frequency trading for the...

  5. Do business angels alter the risk-return equation in early stage investments? Business angels as seen by venture capitalists in the German speaking countries

    OpenAIRE

    Heukamp, Franz; Liechtenstein, Heinrich; Wakeling, Nick

    2006-01-01

    Venture capitalists in German-speaking countries do not value the contribution of business angels in co-invested deals. Business angels do not reduce the risk perceived by venture capitalists in early-stage deals, even if the business angels have what venture capitalists regard as an ideal profile. Venture capitalists also refute that deals with business angels typically generate higher internal rates of return than deals without business angels.

  6. Organochlorine contaminants and maternal offloading in the lecithotrophic Pacific angel shark (Squatina californica) collected from southern California.

    Science.gov (United States)

    Lyons, Kady; Lowe, Christopher G

    2015-08-15

    Pacific angel sharks (Squatina californica) are a benthic elasmobranch that occupy intermediate trophic level positions in coastal food webs. Angel sharks' life history characteristics make them susceptible to accumulating high amounts of contaminants. Four angel sharks were opportunistically captured in southern California and their liver and uterine contents were analyzed for PCBs, DDTs and other pesticides. High DDT:PCB ratios were found in the sharks indicating direct or indirect foraging near a local EPA Superfund Site. Organic contaminants were measured in ovulated eggs, indicating that females are able to maternally offload contaminants. Despite the potential mismatch between ovarian and uterine fecundity, we estimated females to offload approximately 13±5% of their total body load, which represents the upper limit of this capability. Although low in sample size, the initial findings from this study suggest that habitat use might play an important role in contaminant accumulation in this species. PMID:25986655

  7. The Politics of School Desegregation in Los Angeles.

    Science.gov (United States)

    Hart-Nibbrig, Nand E.

    1979-01-01

    Reviews the influences that city and State politics have on school desegregation in Los Angeles. Asserts that the Los Angeles desegregation plan reflects the influence and power of the city's westside by providing an escape from its provisions of mandatory busing while meeting the school district's desegregation guidelines. (Author/GC)

  8. Glitches in Los Angeles Payroll System Spark Furor

    Science.gov (United States)

    Trotter, Andrew

    2007-01-01

    Thousands of Los Angeles teachers have not been paid properly for months because of errors in a corporate-style payroll system that was introduced in January as part of a sweeping, $95 million computer modernization. The Los Angeles Unified School District acknowledges that the payroll system's rollout was rushed and tainted by numerous…

  9. "Angels & Demons" - Distinguishing truth from fiction

    CERN Multimedia

    2005-01-01

    Dan Brown's best-selling novel "Angels & Demons" was published in French on 2 March. A web page on CERN's public site is dedicated to separating truth from fiction in this novel. After the extraordinary success of Dan Brown's "Da Vinci Code", one of his earlier novels "Angels & Demons", published in 2000, has now become a best seller and has generated a flood of questions about CERN. This detective story is about a secret society, the Illuminati, who wish to destroy the Vatican with an antimatter bomb stolen from - wait for it - CERN! Inevitably, CERN has been bombarded with calls about the technologies described in the novel that are supposed to be under development in the Laboratory. The Press Office has always explained that, even if the novel appears to be very informative, it is in fact a mixture of fact and fiction. For instance, according to the novel CERN is supposed to own a plane that can cover the distance between Massachusetts in the United States and Switzerland in just over an hour! ...

  10. Losses from the Northridge earthquake: disruption to high-technology industries in the Los Angeles Basin.

    Science.gov (United States)

    Suarez-Villa, L; Walrod, W

    1999-03-01

    This study explores the relationship between industrial location geography, metropolitan patterns and earthquake disasters. Production losses from the 1994 Northridge earthquake to the Los Angeles Basin's most important high-technology industrial sector are evaluated in the context of that area's polycentric metropolitan form. Locations for each one of the Los Angeles Basin's 1,126 advanced electronics manufacturing establishments were identified and mapped, providing an indication of the patterns and clusters of the industry. An extensive survey of those establishments gathered information on disruptions from the Northridge earthquake. Production losses were then estimated, based on the sampled plants' lost workdays and the earthquake's distance-decay effects. A conservative estimate of total production losses to establishments in seven four-digit SIC advanced electronics industrial groups placed their value at US$220.4 million. Based on this estimate of losses, it is concluded that the Northridge earthquake's economic losses were much higher than initially anticipated. PMID:10204286

  11. The Role and Place of Governing Angels in Bible

    Directory of Open Access Journals (Sweden)

    Sayyed hesam aldin Hosseini

    2014-09-01

    Full Text Available Angels have allocated a considerable part of Bible's discussions to themselves and since one of the dogmatic principles of the revealed religions is the belief in angels, depiction of the place and attributes of angels can be the indicator of the quality of attitude and worldview and the strength of dogmatic principles of Bible's followers and justify their thought and ideas; For this subject is related with the issues such as: transcendent unity of divine acts and essence and attributes and even unity in obedience, how to record the actions and investigate them in Purgatory and Resurrection and believe in the unseen world and how to connect to that world and how to manage the world by God and the definition of the Kingdom of Heaven and how to divide people's sustenance and their reward and punishment which is the indicator and representative of the position of each religion as compared to other religions. Like Muslims, the followers of Bible regard the existence of angels as one of the articles of faith and among the most important elements of the world of being. And whereas the Old Testament has described the revelation of One God using figures who appear in the Eastern mythological stories, it can be seen that in many cases the Kingdom of Heaven has been depicted by metaphors which match the similes used in Quran like angel's march before God (Fajr, 22 as if God is one of the kings from East. The angels are mentioned a lot in the Bible. In Hebrews it has been said that the numbers of angels is countless and in fact, they cannot be enumerated. Angels also do many things including: the report of the Birth of John… the most important task which is assigned to the angels is worshipping God. (1 Enoch, 40 The other significant task undertaken by angels is mediating between God and man. Intercession is another role assigned to angels. (1 Enoch, 2: 4, 4:9 Sometimes man asks the angels beseechingly to convey his/her request to Divinity. The angels

  12. A million trees for joining Europe / Aleksei Gunter

    Index Scriptorium Estoniae

    Gunter, Aleksei, 1979-

    2004-01-01

    Mai esimesel nädalal istutavad laulu- ja tantsupeost osavõtjad ligikaudu miljon uut puuistikut. Kommentaarid metsaistutamise eestvedajatelt, Eesti Laulu- ja Tantsupeo Fondi esinaiselt Aet Maateelt ja EL-i infosekretariaadi juhilt Hannes Rummilt

  13. Los Angeles Area Permit Holder Estimated Trash Load Reduction

    Data.gov (United States)

    U.S. Environmental Protection Agency — The Los Angeles River has been designated as an impaired waterbody due to the large volume of trash it receives from the watershed. To address this problem a Total...

  14. Port Angeles, Washington Tsunami Forecast Grids for MOST Model

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Port Angeles, Washington Forecast Model Grids provides bathymetric data strictly for tsunami inundation modeling with the Method of Splitting Tsunami (MOST)...

  15. Los Angeles, California Tsunami Forecast Grids for MOST Model

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Los Angeles, California Forecast Model Grids provides bathymetric data strictly for tsunami inundation modeling with the Method of Splitting Tsunami (MOST)...

  16. Edificio de archivos en Los Angeles

    Directory of Open Access Journals (Sweden)

    Neutra & Alexander, Arquitectos

    1963-07-01

    Full Text Available The 80th birthday of Richard Neutra coincides with the completion of this building, a special feature of which is that it has 13 half-floor levels, thus saving space and making it easier to reach the documents. Besides housing the Territorial Archives Office, it accommodates the Territorial Testing Dept., Regional Planning Committee and Territorial Library. 40 ms high rotary sun shields are fitted, made of aluminium. They are controlled automatically by electronic devices, motivated by the solar action, and are thus correctly orientated at any time to provide protection against sun glare. They close altogether when the wind speed is such that they might be damaged. On the main facade looking towards Temple Street, the plastic arts organisation has contributed a large mosaic by Joseph Young, showing a map of the district. This archives building in Los Angeles is a fine exponent of what technology can do for man, and it is a characteristic example of contemporary organic architecture at its best.El principio de la octava década de Neutra coincide con la terminación del edificio, cuya sección nos ofrece trece medias plantas, para economizar espacio y facilitar el alcance de los documentos. Aloja, además de la Oficina Territorial de Archivos, otras varias: Departamento Territorial de Pruebas, Comisión de Planificación Regional y Biblioteca Territorial. Unos «brise-soleils» giratorios, de aluminio, de 40 m de altura, que funcionan automáticamente —controlados por un cerebro electrónico— bajo la acción solar, proporcionan la orientación «adecuada» en cada momento y protegen del brillo lateral, cerrándose cuando el viento sopla con una velocidad que puede serles perjudicial. Como aportación de las Artes Plásticas aparece en la fachada principal, que da a la calle Temple, un gran mosaico, de Joseph Young, del mapa del territorio. Este edificio de archivos en Los Angeles constituye un claro exponente en el que la, técnica est

  17. Los Angeles: The most differentiated basaltic martian meteorite

    Science.gov (United States)

    Rubin, Alan E.; Warren, Paul H.; Greenwood, James P.; Verish, Robert S.; Leshin, Laurie A.; Hervig, Richard L.; Clayton, Robert N.; Mayeda, Toshiko K.

    2000-11-01

    Los Angeles is a new martian meteorite that expands the compositional range of basaltic shergottites. Compared to Shergotty, Zagami, QUE94201, and EET79001-B, Los Angeles is more differentiated, with higher concentrations of incompatible elements (e.g., La) and a higher abundance of late-stage phases such as phosphates and K-rich feldspathic glass. The pyroxene crystallization trend starts at compositions more ferroan than in other martian basalts. Trace elements indicate a greater similarity to Shergotty and Zagami than to QUE94201 or EET79001-B, but the Mg/Fe ratio is low even compared to postulated parent melts of Shergotty and Zagami. Pyroxene in Los Angeles has 0.7 4-μm-thick exsolution lamellae, ˜10 times thicker than those in Shergotty and Zagami. Opaque oxide compositions suggest a low equilibration temperature at an oxygen fugacity near the fayalite-magnetite-quartz buffer. Los Angeles cooled more slowly than Shergotty and Zagami. Slow cooling, coupled with the ferroan bulk composition, produced abundant fine-grained intergrowths of fayalite, hedenbergite, and silica, by the breakdown of pyroxferroite. Shock effects in Los Angeles include maskelynitized plagioclase, pyroxene with mosaic extinction, and rare fault zones. One such fault ruptured a previously decomposed zone of pyroxferroite. Although highly differentiated, the bulk composition of Los Angeles is not close to the low-Ca/Si composition of the globally wind-stirred soil of Mars.

  18. Methane Hotspots in the Los Angeles Megacity

    Science.gov (United States)

    Hopkins, F. M.; Randerson, J. T.; Bush, S.; Ehleringer, J. R.; Lai, C.; Kort, E. A.; Blake, D. R.

    2013-12-01

    Airborne observations show that Los Angeles (LA) is a large source of methane to the atmosphere, yet the sources of excess methane from the urban area are poorly constrained. We used a mobile laboratory, a Ford Transit van equipped with cavity ring down spectrometers (Picarro, Inc.), to measure greenhouse gases (CH4, CO2, and CO) mole fractions in LA. On-road surveys across the LA Basin were conducted seasonally to determine patterns of CH4 enrichment in space and over time, with a focus on quantifying methane leaks from known sources. We found fugitive leaks and elevated CH4 concentrations throughout the LA Basin. Some were associated with known sources, such as landfills, wastewater treatment, and oil and gas infrastructure, while others had an unknown origin. Urban CH4 enrichment varied over the course of the year, largely due to seasonal changes in meteorological conditions. Nevertheless, our mobile surveys revealed CH4 hotspots (>200 ppb elevated with respect to background levels) that persisted among seasons. High CH4 concentrations were most easily predicted by proximity to methane sources, particularly near the coast, while elevated CH4 levels were more evenly dispersed in inland areas. CH4 hotspots had a disproportionate impact on excess methane relative to the area they accounted for, typically providing more than a quarter of excess methane measured on a transect. These data improve estimates of the relative roles of specific leaks and emission sectors to LA's excess methane. Depending on the cost of reducing these CH4 leaks, a focus on CH4 emissions may prove an effective way to reduce LA's greenhouse gas emissions in the near term.

  19. Starting School Healthy and Ready to Learn: Using Social Indicators to Improve School Readiness in Los Angeles County

    Directory of Open Access Journals (Sweden)

    Cheryl Wold, MPH

    2007-10-01

    Full Text Available BackgroundSchool readiness is an important public health outcome, determined by a set of interdependent health and developmental trajectories and influenced by a child’s family, school, and community environments. The same factors that influence school readiness also influence educational success and health throughout life.ContextA California cigarette tax ballot initiative (Proposition 10 created new resources for children aged 0 to 5 years and their families statewide through county-level First 5 commissions, including First 5 LA in Los Angeles County. An opportunity to define and promote school readiness indicators was facilitated by collaborative relationships with a strong emphasis on data among First 5 LA, the Children’s Planning Council, and the Los Angeles County Public Health Department, and other child-serving organizations. MethodsA workgroup developed school readiness goals and indicators based on recommendations of the National Education Goals Panel and five key domains of child well-being: 1 good health, 2 safety and survival, 3 economic well-being, 4 social and emotional well-being, and 5 education/workforce readiness.ConsequencesThe Los Angeles County Board of Supervisors and First 5 LA Commission adopted the school readiness indicators. First 5 LA incorporated the indicators into the results-based accountability framework for its strategic plan and developed a community-oriented report designed to educate and spur school readiness-oriented action. The Los Angeles County Board of Supervisors approved a countywide consensus-building plan designed to engage key stakeholders in the use of the indicators for planning, evaluation, and community-building activities.InterpretationSchool readiness indicators in Los Angeles County represent an important step forward for public health practice, namely, the successful blending of an expanded role for assessment with the ecological model.

  20. The informal investment context: specific issues concerned with business angels

    Directory of Open Access Journals (Sweden)

    Jon Hoyos Iruarrizaga

    2013-01-01

    Full Text Available Informal investors play a key role to meet the financing needs of business projects in early stages. However, this is a group in which there are different kinds and ways of dealing with investment. One of these profiles is associated with the figure known as business angel, whose main distinguishing feature is its ability to add smart capital in the form of knowledge, experience and contacts. The aim of this paper is to determine to what extent the specific profile of business angels differ from the rest of informal investors. With a sample of over 800 informal investors in Spain, the empirical results of this study show that the higher income, skills and entrepreneurial training and the less family ties to the entrepreneur, the greater the probability of belonging to business angel investment group.

  1. Meteorological influences on surface ozone in the Los Angeles Basin

    Science.gov (United States)

    Blaylock, B. K.; Lefer, B. L.; Grossberg, N.

    2013-12-01

    Ozone levels in the Los Angeles Basin have improved over the last twenty years due to reductions in pollutants responsible for ozone formation. Still, meteorological effects can increase or decrease ozone levels. This study was an attempt to identify weather patterns that contribute to elevated or depressed ozone levels at four sites in the South Coast Air Quality Management District in California. Hourly surface ozone and meteorological measurements were compared at sites in Santa Clarita, Los Angeles (North Main Street), Costa Mesa, and San Bernardino. Comparisons were made on sixty-two days with good air quality and sixty-five days with unhealthy air quality between the years 2008 and 2012. Days were selected between April and September based on the Los Angeles area Air Quality Index. Ozone concentrations were shown to be positively correlated with temperature and negatively correlated with absolute humidity. While temperature and humidity do not cause changes in ozone production, they are indicators of weather parameters that do. Days with warmer temperatures have less clouds and more solar radiation. Results show that unhealthy ozone levels occur on days when solar radiation exceeds 800 W/m2. Absolute humidity is related to ozone because it distinguishes between marine and continental airmass source regions. Low ozone levels were consistently observed near the coast in Costa Mesa. The highest ozone levels were found at the receptor sites, San Bernardino and Santa Clarita, downwind of Los Angeles. Finally, wind speed was found to limit ozone in Los Angeles, but no relation between wind speed and ozone was found at the receptor sites. The meteorological conditions that resulted in changes in solar radiation and air mass source region had the largest impact on ozone levels in the Los Angeles Basin.

  2. Perspective View, SRTM / Landsat, Los Angeles, Calif

    Science.gov (United States)

    2002-01-01

    Los Angeles, Calif., is one of the world's largest metropolitan areas with a population of about 15 million people. The urban areas mostly cover the coastal plains and lie within the inland valleys. The intervening and adjacent mountains are generally too rugged for much urban development. This in large part because the mountains are 'young', meaning they are still building (and eroding) in this seismically active (earthquake prone) region. Earthquake faults commonly lie between the mountains and the lowlands. The San Andreas fault, the largest fault in California, likewise divides the very rugged San Gabriel Mountains from the low-relief Mojave Desert, thus forming a straight topographic boundary between the top center and lower right corner of the image. We present two versions of this perspective image from NASA's Shuttle Radar Topography Mission (SRTM): one with and one without a graphic overlay that maps faults that have been active in Late Quaternary times (white lines). The fault database was provided by the U.S. Geological Survey.For the annotated version of this image, please select Figure 1, below: [figure removed for brevity, see original site] (Large image: 2 mB jpeg) The Landsat image used here was acquired on May 4, 2001, about seven weeks before the summer solstice, so natural terrain shading is not particularly strong. It is also not especially apparent given a view direction (northwest) nearly parallel to the sun illumination (shadows generally fall on the backsides of mountains). Consequently, topographic shading derived from the SRTM elevation model was added to the Landsat image, with a false sun illumination from the left (southwest). This synthetic shading enhances the appearance of the topography. Landsat has been providing visible and infrared views of the Earth since 1972. SRTM elevation data matches the 30-meter (98-foot) resolution of most Landsat images and substantially helps in analyzing the large and growing Landsat image archive

  3. A retrospective look at air quality management in Los Angeles

    International Nuclear Information System (INIS)

    The history of air quality management in Los Angeles is discussed. Successful as well as unsuccessful programs and control measures are described. Specific air pollutants discussed are sulfur dioxide, lead, carbon monoxide, particulate matter, nitrogen oxides, ozone, and toxic air contaminants

  4. Housing in Los Angeles: Affordable Housing for the Future.

    Science.gov (United States)

    Los Angeles Blue Ribbon Committee for Affordable Housing, CA.

    A 1988 mayoral committee assessed the seriousness of Los Angeles (California) housing problems and found that the city's housing efforts were sufficient in the 1960s, when the Federal Government took primary responsibility for housing and the average wage was adequate to support the cost of the average house or apartment. However, the following…

  5. Rikaste klubi hindab Eesti reformikogemust / Angel Gurria ; interv. Sirje Rank

    Index Scriptorium Estoniae

    Gurria, Angel, 1950-

    2008-01-01

    Majandusliku Koostöö ja Arengu Organisatsiooni (OECD) peasekretär Angel Gurria ütleb intervjuus Äripäevale, et Eesti on oodatud rikaste riikide klubisse eelkõige oma reformikogemuse tõttu, ette heitis ta aga Eesti tööturu jäikust. Kommenteerib välisminister Urmas Paet. Lisa: Taust

  6. Exhibition "Angels & Demons" : the science behind the story

    CERN Multimedia

    CERN audiovisual service

    2009-01-01

    Angels & Demons – the science behind the story. A race against the clock to prevent antimatter stolen from CERN from blowing up the Vatican: following a tried and tested Hollywood formula, the 'ticking-bomb' thriller, Angles & Demons can hardly fail to entertain. But how does the science stand up to scrutiny?

  7. Turning Neighbors into Friends: The Los Angeles Camp Experience.

    Science.gov (United States)

    Jenya, Judith

    2002-01-01

    A camp for Los Angeles (California) children traumatized by war, community violence, and hatred gives them time to heal and feel safe. The camp's theme of reconciliation and nonviolence is expressed by an all-volunteer staff through community, teamwork, and cooperation. Nature's diversity is used to show how diverse groups can interact, thrive,…

  8. Tracking a refined eIF4E-binding motif reveals Angel1 as a new partner of eIF4E.

    Science.gov (United States)

    Gosselin, Pauline; Martineau, Yvan; Morales, Julia; Czjzek, Mirjam; Glippa, Virginie; Gauffeny, Isabelle; Morin, Emmanuelle; Le Corguillé, Gildas; Pyronnet, Stephane; Cormier, Patrick; Cosson, Bertrand

    2013-09-01

    The initiation factor 4E (eIF4E) is implicated in most of the crucial steps of the mRNA life cycle and is recognized as a pivotal protein in gene regulation. Many of these roles are mediated by its interaction with specific proteins generally known as eIF4E-interacting partners (4E-IPs), such as eIF4G and 4E-BP. To screen for new 4E-IPs, we developed a novel approach based on structural, in silico and biochemical analyses. We identified the protein Angel1, a member of the CCR4 deadenylase family. Immunoprecipitation experiments provided evidence that Angel1 is able to interact in vitro and in vivo with eIF4E. Point mutation variants of Angel1 demonstrated that the interaction of Angel1 with eIF4E is mediated through a consensus eIF4E-binding motif. Immunofluorescence and cell fractionation experiments showed that Angel1 is confined to the endoplasmic reticulum and Golgi apparatus, where it partially co-localizes with eIF4E and eIF4G, but not with 4E-BP. Furthermore, manipulating Angel1 levels in living cells had no effect on global translation rates, suggesting that the protein has a more specific function. Taken together, our results illustrate that we developed a powerful method for identifying new eIF4E partners and open new perspectives for understanding eIF4E-specific regulation. PMID:23814182

  9. Angel Investors” in Entrepreneurship: An Assessment on Turkey Model

    Directory of Open Access Journals (Sweden)

    Hidayet Tiftik

    2014-03-01

    Full Text Available Since the subject of angel investors is a new concept for the researches of our country there is little if any in Turkey regarding of scientific research. As well as any quantitative research not exist on the field, the searches carried out are discussed as qualitative and literature study. The concept is ranked among the titles such as business angels, angel capital, angel investment, angel financing in the international literature. The search involves the entrepreneurship concept, the study results hereof in our country, the literature about angel investment and the studies carried out in other countries regarding of the subject matter. In consequences of the searches, the subject discussed from a different point of view and headed by the literature offers a number of suggestions and advices to entrepreneurships, the whole parts mod eled by angel investment and researches.

  10. Angelic and Crepuscular in Alexandru Sever’s Drama

    Directory of Open Access Journals (Sweden)

    Elena IANCU

    2014-12-01

    Full Text Available The illustration of a world, apparently drifting, the (demystification of the transcendent and of the act of creation, as idea and textual strategy, seem to Alexandru Sever (1921-2010 a means for another beginning. The impossibility of action in Înger bătrîn/ The Old Angel (1977 and the pact-making in Îngerul slut/ The Miscreated Angel (1982, imply metamorphosis in essence, supported by the dialogue with the great texts of the world, by intertextuality (the biblical text, Shakespeare's texts -Hamlet -Yorick, texts written by Göethe, Beckett, Marlowe, Dostoevsky, J. P. Sartre, Mikhail Bulgakov and others. The projection of Auschwitz, as a Siberia of the spirit, and that of Faustianism, result in a detailed analysis of the human, both as individuality and as community, in an attempt to illustrate the (inintelligible inaction, death involving catharsis in the mundane and the theatre alike.

  11. Speciation of Arsenic in Ambient Aerosols Collected in Los Angeles

    OpenAIRE

    Rabano, Erlinda S.; Castillo, Norma T.; Torre, Kahirup J.; Paul A. Solomon

    1989-01-01

    First-time measurements of the potentially toxic inorganic species of arsenic (arsenite arid arsenate) have been obtained in fine (2.5 µm AD) atmospheric particles in the Los Angeles area. A recently developed method that includes procedures for sample collection, preparation, and analysis was used in this study. Size-fractlonated aerosol samples were collected with a high-volume dichotomous virtual impactor that employed polytetrafluoroethylene filters. Results were obtained for the recovery...

  12. Molecular basis for Duarte and Los Angeles variant galactosemia.

    OpenAIRE

    Langley, S D; Lai, K.; Dembure, P P; Hjelm, L. N.; Elsas, L. J.

    1997-01-01

    Human orythrocytes that are homozygous for the Duarte enzyme variant of galactosemia (D/D) have a characteristic isoform on isoelectric focusing and 50% reduction in galactose-1-phosphate uridyltransferase (GALT) enzyme activity. The Duarte biochemical phenotype has a molecular genotype of N314D/N314D. The characteristic Duarte isoform is also associated with a variant called the "Los Angeles (LA) phenotype," which has increased GALT enzyme activity. We evaluated GALT enzyme activity and scre...

  13. Los Angeles Summer Midday Particulate Carbon: Primary and Secondary Aerosol

    OpenAIRE

    Turpin, Barbara J.; Huntzicker, James J.; Larson, Susan M; Cass, Glen R.

    1991-01-01

    Aerosol sampling during photochemically active times across the Los Angeles Basin has provided evidence of secondary formation of organic aerosol from gas-phase precursors at midday. Ambient organic carbon/elemental carbon ratios exceeded the estimated ratio of organic carbon/elemental carbon in primary source emissions on most sampling days at all sites. The concentration of secondary organic aerosol was calculated by using ambient data and estimates of the organic ca...

  14. Insurance Stock Prices Following the 1994 Los Angeles Earthquake

    OpenAIRE

    Thomas A. Aiuppa; Thomas M. Krueger

    1995-01-01

    This study examines the changes in insurance firm value following the 1994 Los Angeles earthquake. While prior studies found that the 1989 San Francisco earthquake was associated with an increase in earthquake insurers’ firm value, the findings of this study indicate that earthquake firms sustained their value following the 1994 earthquake. These results and their implications provide insight for investors, regulators, and other policymakers as regards future earthquakes.

  15. Survival, Economic Mobility, and Community Among Los Angeles Fruit Vendors

    OpenAIRE

    Rosales, Rocio

    2012-01-01

    How do undocumented immigrants survive in a punitive regulatory environment? Drawing upon four years of ethnographic research, this article examines how local repressive policies affect the economic mobility of immigrant fruit vendors in Los Angeles County. In the face of government enforcement, fruit vendors have implemented strategies that allow for short-term survival but fail to bolster long-term upward mobility. The four survival strategies that I analyze include: 1) reliance on kinship ...

  16. Mobility, housing stress, and neighborhood contexts: evidence from Los Angeles

    OpenAIRE

    William A.V. Clark; Ledwith, Valerie

    2006-01-01

    In this paper we examine, in two separate analyses, actual and planned residential moves. Although we now have robust models and substantive empirical analysis of residential mobility, especially of the role of housing consumption and the variables that trigger residential moves, we are less clear about how the model applies to minority households and in diverse ethnic settings. We use data from the Los Angeles Family and Neighborhood Study—a longitudinal study of mobility and neighborhood ch...

  17. Seceding from Responsibility? Secession Movements in Los Angeles

    OpenAIRE

    Julie-Anne Boudreau; Roger Keil

    2001-01-01

    This paper seeks to understand why secession movements gained momentum in Los Angeles and what their effect will be on regional governance. A brief discussion of liberal theories of secession demonstrates that they cannot explain secession movements at the urban scale, as they are exclusively focused on cases of nationalist secession from a nation-state. Furthermore, liberal theories of secession offer normative arguments on the right to secede. Following a change in California legislation gr...

  18. Modelling Worker Residence Distribution in the Los Angeles Region

    OpenAIRE

    Song, Shunfeng

    1993-01-01

    This paper examines the spatial pattern of worker residences with three different density functions: monocentric, polycentric, and dispersive. Analysis of the 1980 journey-to-work census data for the Los Angeles region reveals that the polycentric density function statistically explains the actual distribution better than the monocentric density function, but the dispersive density function fits best. These findings confirm a polycentric spatial pattern, and also imply that overall accessibil...

  19. Artificial Intelligence Research at the University of California, Los Angeles

    OpenAIRE

    Dyer, Michael G.

    1985-01-01

    Research in AI within the Computer Science Department at the University of California, Los Angeles is loosely composed of three interacting and cooperating groups: (1) the Artificial Intelligence Laboratory, at 3677 Boelter Hall, which is concerned mainly with natural language processing and cognitive modelling, (2) the Cognitive Systems Laboratory, at 4731 Boelter Hall, which studies the nature of search, logic programming, heuristics, and formal methods, and (3) the Robotics and Vision Labo...

  20. Risky Sexual Behaviors among a Sample of Gang-identified Youth in Los Angeles

    Science.gov (United States)

    Sanders, Bill; Lankenau, Stephen E.; Jackson-Bloom, Jennifer

    2011-01-01

    Gang youth are at an increased likelihood of participating in unsafe sexual behaviors and at an elevated risk of exposure to sexually transmitted infection (STIs), including HIV. This manuscript presents quantitative and qualitative data on sexual behaviors among a sample of predominately heterosexual, male gang youth aged 16 to 25 years interviewed in Los Angeles between 2006 and 2007 (n = 60). In particular, sexual identity, initiation and frequency of sex, and number of sexual partners; use of condoms, children, and other pregnancies; group sex; and STIs and sex with drug users. We argue that gang youth are a particular public health concern, due to their heightened risky sexual activity, and that behavioral interventions targeting gang youth need to include a component on reducing sexual risks and promoting safe sexual health. PMID:21949598

  1. HIV transmission in the adult film industry--Los Angeles, California, 2004.

    Science.gov (United States)

    2005-09-23

    In April 2004, the Los Angeles County Department of Health Services (LACDHS) received reports of work-related exposure to human immunodeficiency virus (HIV) in the heterosexual segment of the adult film industry in California. This report summarizes an investigation by LACDHS into four work-related HIV-transmission cases among adult film industry workers. The investigation was initiated April 20, 2004, and joined by the California Department of Industrial Relations, Division of Occupational Safety and Health (Cal/OSHA) on April 21, 2004, and by CDC on May 18, 2004. This investigation identified important and remediable gaps in the prevention of HIV and other sexually transmitted diseases (STDs) in the adult film industry. PMID:16177683

  2. Angel Investing in Finland: An Analysis Based on Agency Theory and the Incomplete Contracting Theory

    OpenAIRE

    Lahti, Tom

    2009-01-01

    Wealthy individuals - business angels who invest a share of their net worth in entrepreneurial ventures - form an essential part of an informal venture capital market that can secure funding for entrepreneurial ventures. In Finland, business angels represent an untapped pool of capital that can contribute to fostering entrepreneurial development. In addition, business angels can bridge knowledge gaps in new business ventures by means of making their human capital available. This study has ...

  3. Friends or Foes: The Interrelationship between Angel and Venture Capital Markets

    OpenAIRE

    Hellmann, Thomas F; Veikko Thiele

    2014-01-01

    This paper develops a theory of how angel and venture capital markets interact. Entrepreneurs first receive angel then venture capital funding. The two investor types are 'friends' in that they rely upon each other's investments. However, they are also 'foes', because at the later stage the venture capitalists no longer need the angels. Using a costly search model we derive the equilibrium deal flows across the two markets, endogenously deriving market sizes, competitive structures, valuation...

  4. Mobile Internet Start-ups as a Potential Market for Angel Investors

    OpenAIRE

    Luo, Xi

    2012-01-01

    The aims of the study are to assess the mobile internet start-up’s market value for angel investors and how to become an efficient angel investor with reliable marketing strategy. In the Introduction section, the overview of this thesis is indicated. In the second Theoretical Frame-work chapter, the introduction of current mobile internet and angel investor is described. In the Empirical Part, the main emphases are taken on the analysis of angel investor’s development with a new concept...

  5. Misuse of prescription and illicit drugs among high-risk young adults in Los Angeles and New York

    Directory of Open Access Journals (Sweden)

    Stephen E. Lankenau

    2012-02-01

    Full Text Available Background. Prescription drug misuse among young adults is increasingly viewed as a public health concern, yet most research has focused on student populations and excluded high-risk groups. Furthermore, research on populations who report recent prescription drug misuse is limited. This study examined patterns of prescription drug misuse among high-risk young adults in Los Angeles (LA and New York (NY, which represent different local markets for illicit and prescription drugs. Design and Methods. Between 2009 and 2011, 596 young adults (16 to 25 years old who had misused prescription drugs within the past 90 days were interviewed in Los Angeles and New York. Sampling was stratified to enroll three groups of high-risk young adults: injection drug users (IDUs; homeless persons; and polydrug users. Results. In both sites, lifetime history of receiving a prescription for an opioid, tranquilizer, or stimulant was high and commonly preceded misuse. Moreover, initiation of opioids occurred before heroin and initiation of prescription stimulants happened prior to illicit stimulants. NY participants more frequently misused oxycodone, heroin, and cocaine, and LA participants more frequently misused codeine, marijuana, and methamphetamine. Combining prescription and illicit drugs during drug using events was commonly reported in both sites. Opioids and tranquilizers were used as substitutes for other drugs, e.g., heroin, when these drugs were not available. Conclusion. Patterns of drug use among high-risk young adults in Los Angeles and New York appear to be linked to differences in local markets in each city for illicit drugs and diverted prescription drugs.

  6. Los Angeles, California, Radar Image, Wrapped Color as Height

    Science.gov (United States)

    2000-01-01

    This topographic radar image shows the relationships of the dense urban development of Los Angeles and the natural contours of the land. The image includes the Pacific Ocean on the left, the flat Los Angeles Basin across the center, and the steep ranges of the Santa Monica and Verdugo mountains along the top. The two dark strips near the coast at lower left are the runways of Los Angeles International Airport. Downtown Los Angeles is the bright yellow and pink area at lower center. Pasadena, including the Rose Bowl, are seen half way down the right edge of the image. The communities of Glendale and Burbank, including the Burbank Airport, are seen at the center of the top edge of the image. Hazards from earthquakes, floods and fires are intimately related to the topography in this area. Topographic data and other remote sensing images provide valuable information for assessing and mitigating the natural hazards for cities such as Leangles.This image combines two types of data from the Shuttle Radar Topography Mission. The image brightness corresponds to the strength of the radar signal reflected from the ground, while colors show the elevation as measured by SRTM. Each cycle of colors (from pink through blue back to pink) represents an equal amount of elevation difference (400 meters, or 1300 feet) similar to contour lines on a standard topographic map. This image contains about 2400 meters (8000 feet) of total relief.The Shuttle Radar Topography Mission (SRTM), launched on February 11,2000, uses the same radar instrument that comprised the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) that flew twice on the Space Shuttle Endeavour in 1994. The mission is designed to collect three-dimensional measurements of the Earth's surface. To collect the 3-D data, engineers added a 60-meter-long (200-foot) mast, an additional C-band imaging antenna and improved tracking and navigation devices. The mission is a cooperative project between the National

  7. Capital riesgo y Business Angels en España

    OpenAIRE

    Gallego Pastor, Rafael

    2014-01-01

    El trabajo consiste en la explicación de las empresas de Capital riesgo y los Bussines. Los mismos no sólo son alternativas de financiación para empresas ya consolidadas que quieren crecer (caso del Capital riesgo) o para Start Ups (empresas pequeñas con alto potencial de crecimiento, en las cuales invierten los Business Angels) sino que apoyaran en la gestión y en las decisiones estratégicas de la empresa, debido a su experiencia empresarial, y a su red de contactos. Los mismos (Capital Ries...

  8. Angels and Demons: The Science Behind the Scenes

    International Nuclear Information System (INIS)

    Does antimatter really exist? How and why do scientists produce and use it? Does CERN exist and is there an underground complex deep beneath the Swiss/French border? Is truth stranger than fiction? Find out at the coming public lecture. On Tuesday, May 12, SLAC physicist Norman Graf will discuss the real science behind Angels and Demons, Dan Brown's blockbuster novel and the basis of an upcoming Tom Hanks movie. Graf's' talk is one in a series of public lectures across the U.S., Canada and Puerto Rico to share the science of antimatter and the Large Hadron Collider, and the excitement of particle physics research.

  9. PABLO DE ROKHA Y JOSÉ ANGEL CUEVAS: DE LA NOSTALGIA DEL MUNDO RURAL AL SUJETO DE LA CIUDAD MARGINAL Pablo de Rokha and José Angel Cuevas: From the nostalgia of the rural world to the subject of the marginal city

    Directory of Open Access Journals (Sweden)

    Naín Nómez

    2010-12-01

    Full Text Available Este trabajo tiene por objetivo establecer una comparación entre la poesía de Pablo de Rokha (1894-1968 y la de José Angel Cuevas (1944, a partir de la representación que ambos poetas chilenos hacen de las identidades locales, nacionales, populares y urbanas. Estos rasgos permiten desarrollar un recorrido del imaginario que va desde la mitificación de la ruralidad popular y la degradación producida por el capitalismo urbano incipiente en Pablo de Rokha al sujeto marginalizado de la ciudad dictatorial que añora este mundo rural y urbano anterior, también mitificado en la obra de José Angel Cuevas.This article proposes to establish relationships between Pablo de Rokha (1994-1968 and José Angel Cuevas (1944 poetry, through the representation that both Chilean poets make about local, nacional, popular and urban identities. These features develop an imaginary, that goes from the mitification of the popular rurality and the degradation produces for the initial urban capitalism in Pablo de Rokha, until the marginalized subject of the dictatorial city with nostalgia about the old rural and urban world, also mitified in José Angel Cuevas.

  10. 75 FR 65512 - Raleigh Film and Television Studios, LLC, Los Angeles, CA; Notice of Affirmative Determination...

    Science.gov (United States)

    2010-10-25

    ... Film and Television Studios, LLC, Los Angeles, California (the subject firm). The Notice of determination was issued on January 14, 2010 and published in the Federal Register on February 16, 2010 (75 FR... Employment and Training Administration Raleigh Film and Television Studios, LLC, Los Angeles, CA; Notice...

  11. 40 CFR 52.229 - Control strategy and regulations: Photochemical oxidants (hydrocarbons), Metropolitan Los Angeles...

    Science.gov (United States)

    2010-07-01

    ... 40 CFR 52.223 is retained. (ii) Rule 1115, Automotive Coatings, adopted on March 16, 1984 by the...: Photochemical oxidants (hydrocarbons), Metropolitan Los Angeles Intrastate Region. 52.229 Section 52.229... oxidants (hydrocarbons), Metropolitan Los Angeles Intrastate Region. (a) (b) The following rules...

  12. Carotenoids of Sea Angels Clione limacina and Paedoclione doliiformis from the Perspective of the Food Chain

    Directory of Open Access Journals (Sweden)

    Takashi Maoka

    2014-03-01

    Full Text Available Sea angels, Clione limacina and Paedoclione doliiformis, are small, floating sea slugs belonging to Gastropoda, and their gonads are a bright orange-red color. Sea angels feed exclusively on a small herbivorous sea snail, Limacina helicina. Carotenoids in C. limacina, P. doliiformis, and L. helicina were investigated for comparative biochemical points of view. β-Carotene, zeaxanthin, and diatoxanthin were found to be major carotenoids in L. helicina. L. helicina accumulated dietary algal carotenoids without modification. On the other hand, keto-carotenoids, such as pectenolone, 7,8-didehydroastaxanthin, and adonixanthin were identified as major carotenoids in the sea angels C. limacina and P. doliiformis. Sea angels oxidatively metabolize dietary carotenoids and accumulate them in their gonads. Carotenoids in the gonads of sea angels might protect against oxidative stress and enhance reproduction.

  13. The Demon-Angel method in systematic safety assessment

    International Nuclear Information System (INIS)

    Since 'design for safety' of large engineering systems with a high level of innovation requires an exhaustive safety analysis and since a subsequent corrective action may become a very large bottleneck in improving such a system, fundamental knowledge in designing safe systems is essential. The lack of any 'rule of thumb' makes such knowledge a matter of personal experience rather than the subject of an academic course. This paper proposes a new method for the theoretical safety study of different system configurations independently of any particular application. This method aims to help the construction of a 'rule of thumb' for what is a safe system and what is not. The Demon and Angel ideas are explained and the schematic presentation of these elements is introduced. Four representative case studies demonstrate the use of this method

  14. Michael Is Chief Angel?... (A New Theory On “Nephilim”

    Directory of Open Access Journals (Sweden)

    M.Arulmani

    2014-11-01

    Full Text Available Michael” is chief of all Angels?... No… No… No… The “HOLY ADAM” shall be considered as Chief of all Angels. Michael shall mean “FALLEN ANGEL”. This scientific research attempts to clarify certain fundamental questions about Holy Angel, Archangel, Angel of Lord, Fallen Angel based on global level religion, Christian Faith and how “Angel” differs from “Human”. This research focus that the Biblically stated “ADAM” shall be considered as “HOLY ADAM” belong to “ANGEL FAMILY” Human race lived in WHITE PLANET (White Mars before eating “forbidden fruit”, and descended to EARTH PLANET as “Fallen Angels” after eating forbidden fruit. This research further focus that the Angel populations lived in white planet in the early Universe shall be considered as „SUPER HUMAN RACE‟ also called as „NEPHILIM‟. The Nephilim shall be considered as the Natural Human originated due to impact of „J-RADIATION‟ (Zero hour radiation and considered lived under Endothermic and Microgravity environment.

  15. Climate Change and Adaptation Planning on the Los Angeles Aqueduct

    Science.gov (United States)

    Roy, S. B.; Bales, R. C.; Costa-Cabral, M. C.; Chen, L.; Maurer, E. P.; Miller, N. L.; Mills, W. B.

    2009-12-01

    This study provides an assessment of the potential impacts of climate change on the Eastern Sierra Nevada snowpack and snowmelt timing, using a combination of empirical (i.e., data-based) models, and computer simulation models forced by GCM-projected 21st century climatology (IPCC 2007 AR4 projections). Precipitation from the Eastern Sierra Nevada is one of the main water sources for Los Angeles' more than 4 million people - a source whose future availability is critical to the city's growing population and large economy. Precipitation in the region falls mostly in winter and is stored in the large natural reservoir that is the snowpack. Meltwater from the Eastern Sierra is delivered to the city by the 340-mile long Los Angeles Aqueducts. The analysis is focused on the nature of the impact to the LAA water supplies over the 21st century due to potential climate change, including volume of precipitation, the mix of snowfall and rainfall, shifts in the timing of runoff, interannual variability and multi-year droughts. These impacts further affect the adequacy of seasonal and annual carryover water storage, and potentially water treatment. Most of the snow in the 10,000 km^2 Mono-Owens basins that feed the LAA occurs in a relatively narrow, 10-20 km wide, high-elevation band on the steep slopes of 20 smaller basins whose streams drain into the Owens River and thence LAA. Extending over 240 km in the north-south direction, these basins present special challenges for estimating snowpack amounts and downscaling climate-model data. In addition, there are few meteorological stations and snow measurements in the snow-producing parts of the basins to drive physically based hydrologic modeling.

  16. Immigrant incorporation in the garment industry of Los Angeles.

    Science.gov (United States)

    Light, I; Bernard, R B; Kim, R

    1999-01-01

    This study expands immigrant social network theory and examined employment patterns in the garment industry in Los Angeles, California, among Latino workers employed by Asian immigrant entrepreneurs. The study determined that a large percentage of immigrant employees found their jobs through the immigrant economy. Entrepreneurship increased the supply of local jobs and expanded the economy at destination at no expense to natives. Immigrant entrepreneurs bought firms from nonimmigrant owners or started new ones with an immigrant labor supply. Massey's index is flawed due to its exclusion of the role of entrepreneurs. Migration networks facilitate entrepreneurship, but some ethnic groups have fewer entrepreneurs, such as Mexicans and Central Americans. A 1993 Los Angeles survey identified 3642 garment factories in its county. Mean employment was 27.1 persons. The garment industry was the 4th largest industry in the area in 1996, with 98,700 employees. It represented 6% of all wage and salary employees in the City and 5.5% of the immigrant labor force in the County in 1990. 93% of garment workers in 1990 were immigrants. It is estimated that 51% of garment factory owners were Asians; most employees were Latinos. Census figures on sewing machine operators indicated 47.3% of owners were Whites and 42.45 were Asians. 53.3% of employees were other ethnic groups, 14.5% were Asians, and 32.2% were Whites. It is estimated that 47.2% of total employment was due to the immigration economy. 71.5% of the total employment in the garment industry was in the immigrant sector. PMID:12294981

  17. Declines in Sugar-Sweetened Beverage Consumption Among Children in Los Angeles County, 2007 and 2011

    Directory of Open Access Journals (Sweden)

    Paul A. Simon, MD, MPH

    Full Text Available This study assessed changes in consumption of sugar-sweetened beverages (SSBs among children (aged ≤17 years in Los Angeles County. We analyzed children’s data from the 2007 (n = 5,595 and 2011 (n = 5,934 Los Angeles County Health Survey. The percentage of children who consumed 1 or more SSB per day decreased from 43.3% in 2007 to 38.3% in 2011 (P < .001; this decrease was seen across most sociodemographic subgroups. Despite measurable progress in reducing SSB consumption among children in Los Angeles County, consumption remains high, highlighting the need for additional policy and programmatic interventions.

  18. The Importance Of Angel Investors In Financing The Growth Of Small And Medium Sized Enterprises

    Directory of Open Access Journals (Sweden)

    Veland Ramadani

    2012-07-01

    Full Text Available Angel investors are very important for small and medium sized enterprises because they provide more than money. They are hands-on investors and contribute their skills, expertise, knowledge and contacts in the businesses they invest in. They are wealthy persons with great business experience. They are willing to invest and offer their wealth and knowledge to owners of small and medium sized enterprises and to entrepreneurs to start or develop their businesses. One of the attributes of angel investors is that they like to remain anonymus. Due to this attribute, a lot of ideas can not be accomplished. To eliminate this, many countries establish angel investor syndicates (groups and networks. These syndicates (groups and networks facilitate the process of matching entrepreneurs and angel investors.

  19. Strategic Plan for Sustainable Energy Management and Environmental Stewardship for Los Angeles Unified School District

    Energy Technology Data Exchange (ETDEWEB)

    Walker, A.; Beattie, D.; Thomas, K.; Davis, K.; Sim, M.; Jhaveri, A.

    2007-11-01

    This Strategic Plan for Sustainable Energy Management and Environmental Stewardship states goals, measures progress toward goals and how actions are monitored to achieve continuous improvement for the Los Angeles Unified School District.

  20. The "sugar pack" health marketing campaign in Los Angeles County, 2011-2012.

    Science.gov (United States)

    Barragan, Noel C; Noller, Ali J; Robles, Brenda; Gase, Lauren N; Leighs, Michael S; Bogert, Suzanne; Simon, Paul A; Kuo, Tony

    2014-03-01

    As part of a comprehensive approach to combating the obesity epidemic, the Los Angeles County Department of Public Health launched the "Sugar Pack" health marketing campaign in fall 2011. Carried out in three stages, the campaign sought to educate and motivate the public to reduce excess calorie intake from sugar-sweetened beverage consumption. The primary Sugar Pack creative concepts provided consumers with information about the number of sugar packs contained in sugary drinks. Data from formative market research as well as lessons from previous campaigns in other U.S. jurisdictions informed the development of the materials. These materials were disseminated through a multipronged platform that included paid outdoor media on transit and billboards and messaging using social media (i.e., Twitter, Facebook, YouTube, and sendable e-cards). Initial findings from a postcampaign assessment indicate that the Sugar Pack campaign reached broadly into targeted communities, resulting in more than 515 million impressions. Lessons learned from the campaign suggest that employing health marketing to engage the public can lead to increased knowledge, favorable recognition of health messages, and self-reported intention to reduce sugar-sweetened beverage consumption, potentially complementing other obesity prevention strategies in the field. PMID:24149214

  1. Shortening and Thickening of Metropolitan Los Angeles Measured and Inferred Using Geodesy

    Science.gov (United States)

    Argus, D.; Heflin, M.; Donnellan, A.; Webb, F.; Dong, D.; Hurst, K.; Jefferson, D.; Lyzenga, G.; Watkins, M.; Zumberge, J.

    1999-01-01

    Geodetic measurements using the Global Positioning System and other techniques show north-south shortening near Los Angeles to be fastest across the northern part of the metropolitan area, where an ESE-striking, 5- to 40-km-wide belt lying to the south of San Gabriel Mountains and to the north of downtown and West Los Angeles is shortening at 5 mm/yr.

  2. Electromagnetic Transient Response Analysis of DFIG under Cascading Grid Faults Considering Phase Angel Jumps

    DEFF Research Database (Denmark)

    Wang, Yun; Wu, Qiuwei

    2014-01-01

    This paper analysis the electromagnetic transient response characteristics of DFIG under symmetrical and asymmetrical cascading grid fault conditions considering phaseangel jump of grid. On deriving the dynamic equations of the DFIG with considering multiple constraints on balanced and unbalanced...... conditions, phase angel jumps, interval of cascading fault, electromagnetic transient characteristics, the principle of the DFIG response under cascading voltage fault can be extract. The influence of grid angel jump on the transient characteristic of DFIG is analyzed and electromagnetic response...

  3. The Criminalization of Black Angeleno Women: Institutionalized Racism and Sexism in Los Angeles, 1928-1938

    OpenAIRE

    Boyd, Kaitlin Therese

    2012-01-01

    "The Criminalization of Black Angeleno Women" illuminates what happened in early 20th century Los Angeles when African American women, particularly working poor females, came into contact with the Los Angeles Police Department, the court system and the local, mainstream media. Individually, but especially collaboratively, these institutions lead to the overrepresentation of Black, statistically and in the public mind, in the local sex trade. Essentially, this thesis traces the biases of the...

  4. Studying the micro-angels approach to micro-investment decisions

    OpenAIRE

    Estapé Dubreuil, Glòria; Ashta, Arvind; Hédou, Jean-Pierre

    2013-01-01

    Purpose: The paper analyzes the micro-angels investment behaviour, looking both to the criteria used in the selection of their investment projects and to the characteristics of their guidance role during the investment period. Design/Methodology/Approach: The paper focuses on a double bottom line movement of French micro-angels clubs that has been operating since 1983. Our primary source of data is an online survey carried out during March 2012, asking members of clubs all over France for dif...

  5. Formalization of the informal venture capital market - Business angel networks and syndicates

    OpenAIRE

    Becsky-Nagy, Patrícia; Novák, Zsuzsanna

    2015-01-01

    Business angels are natural persons who provide equity financing for young enterprises and gain ownership in them. They are usually anonym investors and they operate in the background of the companies. Their important feature is that over the funding of the enterprises based on their business experiences they can contribute to the success of the companies with their special expertise and with strategic support. As a result of the asymmetric information between the angels and the c...

  6. Designing an Innovative Data Architecture for the Los Angeles Data Resource (LADR)

    OpenAIRE

    Mukherjee, Sukrit; Jenders, Robert A.; Delta, Sebastien

    2015-01-01

    The Los Angeles Data Resource (LADR) is a joint project of major Los Angeles health care provider organizations that help clinical investigators to explore the size of potential research study cohorts using operational clinical data across all participating institutions. The Charles R. Drew University of Medicine and Science (CDU) LADR team sought to develop an innovative data architecture that would aggregate de-identified clinical data from safety-net providers in the community into CDU LAD...

  7. Small Business Financing in Nigeria: An Investigation of the Angel Option

    OpenAIRE

    Joseph Femi Adebisi; Olayinka Moses

    2013-01-01

    Small businesses are often faced with funding challenges in developing economies which constraints their growth and long term survival.  This study examines the existence and role of business Angels as a source financial, human and social capital to overcome challenges of funding for small businesses in Nigeria. The research aims to strengthen the framework that seeks to provide detail understanding of the benefits that business angels can bring to small business in developing economies, cons...

  8. An Analysis Of Symbols In Dan Brown’s Novel Angels And Demons

    OpenAIRE

    Savrizal, Muhammad

    2014-01-01

    Skripsi ini yang berjudul An Analysis Of Symbols In Dan Brown’s Novel Angels And Demons merupakan sebuah analisis mengenai simbol-simbol dalam novel “Angels and Demons” dan pembagian simbol kedalam bagian-bagian tertentu serta mengidentifikasi makna makna simbol tersebut. Beberapa simbol dalam novel ini merupakan simbol Illuminati yang merupakan bagian dari proses komunikasi yang dilakukan setiap anggota didalam Illuminati untuk sesama anggota. Tujuan penulis menganalisis si...

  9. Mid-21st Century Changes to Surface Hydrology Over the Los Angeles Region

    OpenAIRE

    Schwartz, Marla Ann

    2013-01-01

    This thesis explores projected mid-21st century changes to surface hydrological fluxes and states in the Los Angeles region at 2km resolution. This work quantifies and describes potential impacts of climate change to precipitation, runoff, evapotranspiration and soil column moisture content in the Los Angeles region. Little previous research has focused on the impacts of climate change to water resources and surface hydrology in this region. We simulate detailed climatologies of surface hydro...

  10. Transpiration of urban forests in the Los Angeles metropolitan area.

    Science.gov (United States)

    Pataki, Diane E; McCarthy, Heather R; Litvak, Elizaveta; Pincetl, Stephanie

    2011-04-01

    Despite its importance for urban planning, landscape management, and water management, there are very few in situ estimates of urban-forest transpiration. Because urban forests contain an unusual and diverse mix of species from many regions worldwide, we hypothesized that species composition would be a more important driver of spatial variability in urban-forest transpiration than meteorological variables in the Los Angeles (California, USA) region. We used constant-heat sap-flow sensors to monitor urban tree water use for 15 species at six locations throughout the Los Angeles metropolitan area. For many of these species no previous data on sap flux, water use, or water relations were available in the literature. To scale sap-flux measurements to whole trees we conducted a literature survey of radial trends in sap flux across multiple species and found consistent relationships for angiosperms vs. gymnosperms. We applied this relationship to our measurements and estimated whole-tree and plot-level transpiration at our sites. The results supported very large species differences in transpiration, with estimates ranging from 3.2 +/- 2.3 kg x tree(-1) x d(-1) in unirrigated Pinus canariensis (Canary Island pine) to 176.9 +/- 75.2 kg x tree(-1) x d(-1) in Platanus hybrida (London planetree) in the month of August. Other species with high daily transpiration rates included Ficus microcarpa (laurel fig), Gleditsia triacanthos (honeylocust), and Platanus racemosa (California sycamore). Despite irrigation and relatively large tree size, Brachychiton populneas (kurrajong), B. discolor (lacebark), Sequoia sempervirens (redwood), and Eucalyptus grandis (grand Eucalyptus) showed relatively low rates of transpiration, with values < 45 kg x tree(-1) x d(-1). When scaled to the plot level, transpiration rates were as high as 2 mm/d for sites that contained both species with high transpiration rates and high densities of planted trees. Because plot-level transpiration is highly

  11. Fragmented Flows: Water Supply in Los Angeles County

    Science.gov (United States)

    Pincetl, Stephanie; Porse, Erik; Cheng, Deborah

    2016-08-01

    In the Los Angeles metropolitan region, nearly 100 public and private entities are formally involved in the management and distribution of potable water—a legacy rooted in fragmented urban growth in the area and late 19th century convictions about local control of services. Yet, while policy debates focus on new forms of infrastructure, restructured pricing mechanisms, and other technical fixes, the complex institutional architecture of the present system has received little attention. In this paper, we trace the development of this system, describe its interconnections and disjunctures, and demonstrate the invisibility of water infrastructure in LA in multiple ways—through mapping, statistical analysis, and historical texts. Perverse blessings of past water abundance led to a complex, but less than resilient, system with users accustomed to cheap, easily accessible water. We describe the lack of transparency and accountability in the current system, as well as its shortcomings in building needed new infrastructure and instituting new water rate structures. Adapting to increasing water scarcity and likely droughts must include addressing the architecture of water management.

  12. Puente Hills blind-thrust system, Los Angeles, California

    Science.gov (United States)

    Shaw, J.H.; Plesch, A.; Dolan, J.F.; Pratt, T.L.; Fiore, P.

    2002-01-01

    We describe the three-dimensional geometry and Quaternary slip history of the Puente Hills blind-thrust system (PHT) using seismic reflection profiles, petroleum well data, and precisely located seismicity. The PHT generated the 1987 Whittier Narrows (moment magnitude [Mw] 6.0) earthquake and extends for more than 40 km along strike beneath the northern Los Angeles basin. The PHT comprises three, north-dipping ramp segments that are overlain by contractional fault-related folds. Based on an analysis of these folds, we produce Quaternary slip profiles along each ramp segment. The fault geometry and slip patterns indicate that segments of the PHT are related by soft-linkage boundaries, where the fault ramps are en echelon and displacements are gradually transferred from one segment to the next. Average Quaternary slip rates on the ramp segments range from 0.44 to 1.7 mm/yr, with preferred rates between 0.62 and 1.28 mm/yr. Using empirical relations among rupture area, magnitude, and coseismic displacement, we estimate the magnitude and frequency of single (Mw 6.5-6.6) and multisegment (Mw 7.1) rupture scenarios for the PHT.

  13. Figurino, moda e luxo no filme Zuzu Angel

    Directory of Open Access Journals (Sweden)

    Haussen, Luciana Fagundes

    2012-01-01

    Full Text Available O artigo analisa o figurino de cinema a partir do filme Zuzu Angel (Sergio Rezende, 2006, e discute como é representada a obra desta designer brasileira de roupas das décadas de 60 e 70, sob o aspecto da relação de seu trabalho com as idéias de moda e luxo. Destaca a trajetória da equipe de produção do figurino do filme e a repercussão das suas escolhas em cenas-chave desta produção audiovisual. Para tanto, trabalha com a contextualização histórica, a narrativa cinematográfica e com os conceitos de figurino de cinema, moda e luxo. Como suporte teórico, recorre às obras de, Michel Pastoureau, para as análises dos tecidos, de Jean-Jacques Roubine, Deborah Nadoolman Landis e Marcel Martin, sobre o papel do figurino na dramaturgia e no cinema, e Gilles Lipovetsky sobre os conceitos de moda e luxo.

  14. Sudden weaning of angel fish pterophyllum scalare (Lichtenstein) (Pisces; Cichlidae) larvae from brine shrimp (Artemia sp) nauplii to formulated larval feed

    OpenAIRE

    Herath, Sandamali Sakunthala; Atapaththu, Kerthi Sri Senarathna

    2013-01-01

    This study investigated the effects of sudden weaning of angel fish larvae (Pteraphylum scalari) from Artemia nauplii to commercial larval feed. Four days post hatch (DPH) larvae were reared in four different weaning protocols (TR1-TR4) with triplicates in a complete randomize design. Larvae in TR1 and TR4 were exclusively fed Artemia nauplii and dry feed respectively. In TR2 and TR3, larvae were initially fed Artemia nauplii and suddenly wean to formulated feed on 14 DPH and 7 DPH respective...

  15. Molecular basis for Duarte and Los Angeles variant galactosemia

    Energy Technology Data Exchange (ETDEWEB)

    Langley, S.D.; Lai, K.; Dembure, P.P. [Emory Univ. School of Medicine, Atlanta, GA (United States)] [and others

    1997-02-01

    Human erythrocytes that are homozygous for the Duarte enzyme variant of galactosemia (D/D) have a characteristic isoform on isoelectric focusing and 50% reduction in galactose-1-phosphate uridyltransferase (GALT) enzyme activity. The Duarte biochemical phenotype has a molecular genotype of N314D/N314D. The characteristic Duarte isoform is also associated with a variant called the {open_quotes}Los Angeles (LA) phenotype,{close_quotes} which has increased GALT enzyme activity. We evaluated GALT enzyme activity and screened the GALT genes of 145 patients with one or more N314D-containing alleles. We found seven with the LA biochemical phenotype, and all had a 1721C{r_arrow}T transition in exon 7 in cis with the N314D missense mutation. The 1721C{r_arrow}T transition is a neutral polymorphism for leucine at amino acid 218 (L218L). In pedigree analyses, this 1721C{r_arrow}T transition segregated with the LA phenotype of increased GALT activity in three different biochemical phenotypes (LA/N, LA/G, and LA/D). To determine the mechanism for increased activity of the LA variant, we compared GALT mRNA, protein abundance, and enzyme thermal stability in lymphoblast cell lines of D and LA phenotypes with comparable genotypes. GALT protein abundance was increased in LA compared to D alleles, but mRNA was similar among all genotypes. We conclude that the codon change N314D in cis with the base-pair transition 1721C{r_arrow}T produces the LA variant of galactosemia and that this nucleotide change increases GALT activity by increasing GALT protein abundance without increasing transcription or decreasing thermal lability. A favorable codon bias for the mutated codon with consequently increased translation rates is postulated as the mechanism. 23 refs., 3 figs., 4 tabs.

  16. From Alec and Angel to see Tess’s tragedy

    Institute of Scientific and Technical Information of China (English)

    任晨爽

    2014-01-01

    “Love is ever matter of comedies, and how and then tragedies.” says the prose writer and philosopher Francis Bacon. Love is beautiful, while the unfortunate love is destined to a tragedy. The love of Tess with Angle Clare and Alec d' Urbervil e is also the tragedy in Tess of the D' urbervil es of Thomas Hardy who is a cross-century literary giants. He is one of the most famous writers in the Victorian era, and is known as“Shakespeare in the English novels”. Tess of the D' urbervil es is one of his famous novels and it is the combination of Hardy’ pessimism and fatalism. Of course, Tess’ tragic fate has thousands of thousands contact with Alec and Angle Clare. In Hardy’ writing, Tess is a pure, beautiful, kind-hearted, and nearly a perfect peasant girl and a series of happenings make the girl go to death. Tess lives in the capital society. The self-supporting peasants are displaced and impoverished, and are forced to work under capitalist exploitation. Her parents’ vanity makes her go to work in Alec’s farm where she loses the most precious chastity of women. While when she begins to choose the new life and struggles to get rid of the moral bound, her husband Angel Clare leaves her after he knows the impurity past of Tess. The two men in Tess’ life help to create the tragedy. Tess ruins herself by a extreme way. This thesis is trying to make comments on the influences of the two men--Alec and Angle to Tess’ tragedy. If the ravages of body by Alec is the beginning of the tragedy, then the mental torture ultimately destroyed Tess and make her to despair and destruction.

  17. Enhancement of Pork Jerky Using Co-cultures of Lactobacillus bulgaricus and Angel Yeast.

    Science.gov (United States)

    Zhao, Changqing; Lu, Ziyang; Huang, Jing; He, Sha; Tan, Hui; Wang, Gang; Liu, Dayu; Li, Yubin

    2016-09-01

    Strains of Lactobacillus bulgaricus and Angel Yeast were combined to ferment raw pork and make pork jerky. After fermentation, the jerky was dried and then tested for sensory evaluation, pH and free amino acid content. The results showed that the optimal conditions for fermentation using L. bulgaricus and Angel Yeast were: a pH of 6.5, a 1:1 (v/v) ratio of L. bulgaricus to Angel Yeast, a fermentation time of 42 h and temperature of 25 °C. The results showed that the pork jerky fermented with the combined strains was not very sour which was close to the pH of 7.0 and had a higher free amino acid content which was more than 68.3 mg/100 g compared with the pork jerky fermented by either L. bulgaricus or Angel Yeast alone. Overall, the results demonstrate that fermentation of raw pork with combined strains of L. bulgaricus and Angel Yeast improves the quality and flavor of pork jerky. PMID:27407292

  18. HB D Los Angeles in a Brazilian family Hb D Los Angeles em família brasileira

    Directory of Open Access Journals (Sweden)

    Guilherme G. Leoneli

    2001-09-01

    Full Text Available Inherited disorders of hemoglobin, the most common monogenic disease, are now well understood at the molecular level, knowledge, which has led to considerable improvements in their control and management. The Brazilian population is multiethnic, and the correct characterization of the Hb D is important, mainly because the method available for detection of abnormal hemoglobins, present a migration in the same zone at alkaline pH, for Hb S, D, and G for example. In this paper we studied a family with an abnormal hemoglobin like S in alkaline electrophoresis, by appropriated methods including HPLC and molecular analysis, characterized as hemoglobin D Los Angeles.As doenças hereditária da hemoglobina são as mais comuns doenças monogênicas e atualmente bem conhecidas do ponto de vista molecular, fato este que propiciou um avanço no seu controle e manuseio. A população brasileira caracteriza-se pela multiplicidade étnica e a caracterização da Hb D torna-se importante por este dado, associado ao fato de que os métodos de detecção das hemoglobinopatias comumente não identificam esta fração anormal que apresenta a peculiaridade de migração eletroforéticia em pH alcalino na mesma zona observada nas Hb S e G. Neste relato é apresentado um estudo familiar no qual é empregada metodologia adequada, o HLPC, que permite a identificação da Hb D.

  19. Immigrant enclaves and obesity in preschool-aged children in Los Angeles County.

    Science.gov (United States)

    Nobari, Tabashir Z; Wang, May-Choo; Chaparro, M Pia; Crespi, Catherine M; Koleilat, Maria; Whaley, Shannon E

    2013-09-01

    While neighborhood environments are increasingly recognized as important contributors to obesity risk, less has been reported on the socio-cultural aspects of neighborhoods that influence obesity development. This is especially true among immigrants, who may lack the necessary language skills to navigate their new living environments. In this study, we tested the hypothesis that young children of immigrants would be at lower obesity risk if they lived in neighborhoods where neighbors share the same language and culture. Using 2000 Census data and 2003-2009 data from the Special Supplemental Nutrition Program for Women, Infants and Children in Los Angeles County, we examined the relation between BMI z-scores in low-income children aged 2-5 years (N = 250,029) and the concentration of neighborhood residents who spoke the same language as the children's mothers. Using multi-level modeling and adjusting for child's gender and race/ethnicity, household education, neighborhood socioeconomic status, and year the child was examined, we found that percent of neighborhood residents who spoke the same language as the child's mother was negatively associated with BMI z-scores. This relation varied by child's race/ethnicity and mother's preferred language. The relation was linear and negative among children of English-speaking Hispanic mothers and Chinese-speaking mothers. However, for Hispanic children of Spanish-speaking mothers the relation was curvilinear, initially exhibiting a positive relation which reversed at higher neighborhood concentrations of Spanish-speaking residents. Our findings suggest that living in neighborhoods where residents share the same language may influence obesity-related behaviors (namely diet and physical activity) possibly through mechanisms involving social networks, support, and norms. PMID:23849273

  20. Predicting Los Angeles abrasion loss of rock aggregates from crushability index

    Indian Academy of Sciences (India)

    S Kahraman; O Y Toraman

    2008-04-01

    Predicting Los Angeles abrasion loss of aggregate material from some simpler tests will be useful for especially preliminary studies. For this reason, to investigate the possibility of predicting the Los Angeles abrasion loss from the crushability index, Los Angeles abrasion, crushability, density and porosity tests were performed on 11 different rock types collected from different areas of Turkey. The results of the tests were analysed using simple and multiple regression analyses. Generally significant correlations were obtained from both simple and multiple regression analyses. The correlation coefficients and estimation capabilities of the two multiple regression equations are slightly higher than that of the simple regression equation. It was concluded that the simple regression equation is practical and reliable enough for estimation purposes. However, the two multiple regression equations can be used for a more accurate estimation.

  1. 76 FR 14698 - Raleigh Film and Television Studios, LLC, Los Angeles, CA; Notice of Negative Determination on...

    Science.gov (United States)

    2011-03-17

    ... Television Studios, LLC, Los Angeles, California (the subject firm). The Department's Notice was published in the Federal Register on October 25, 2010 (75 FR 65512). The subject firm supplies sound stage... Employment and Training Administration Raleigh Film and Television Studios, LLC, Los Angeles, CA; Notice...

  2. 77 FR 39559 - In the Matter of AngelCiti Entertainment, Inc., BodyTel Scientific, Inc., Clearant, Inc...

    Science.gov (United States)

    2012-07-03

    ... From the Federal Register Online via the Government Publishing Office SECURITIES AND EXCHANGE COMMISSION In the Matter of AngelCiti Entertainment, Inc., BodyTel Scientific, Inc., Clearant, Inc., Data... accurate information concerning the securities of AngelCiti Entertainment, Inc. because it has not...

  3. Gangster Boogie: Los Angeles and the Rise of Gangsta Rap, 1965-1992

    OpenAIRE

    Viator, Felicia Angeja

    2012-01-01

    "Gangster Boogie" details the early development of hip-hop music in Los Angeles, a city that, in the 1980s, the international press labeled the "murder capital of the U.S." The rap music most associated with the region, coined "gangsta rap," has been regarded by scholars, cultural critics, and audiences alike as a tabloid distortion of East Coast hip-hop. The dissertation shows that this uniquely provocative genre of hip-hop was forged by Los Angeles area youth as a tool for challenging civic...

  4. Diversity and Educational Challenges in Oslo and Los Angeles - A Metropolitan Perspective nr 2

    Directory of Open Access Journals (Sweden)

    Kamil ÖZERK

    2014-07-01

    Full Text Available Receiving, accommodation and education of children with immigrant background is one of the challenging issues in almost all the metropolitan areas in many countries. In our study we are exploring the impact of demographic changes on political agendas, legal frames, educational approaches, research findings and student achievement in the field of education of linguistic minorities in Oslo, Norway and Los Angeles, USA. Although there are significant historical and socio economical differences between Los Angeles and Oslo, many of the educational challenges facing the educational policy makers and the linguistic minority students are quite similar.

  5. Neighborhood Food Environment, Diet, and Obesity Among Los Angeles County Adults, 2011

    OpenAIRE

    Mejia, Nelly; Lightstone, Amy S.; Basurto-Davila, Ricardo; Morales, Douglas M.; Sturm, Roland

    2015-01-01

    Introduction The objective of this study was to examine whether an association exists between the number and type of food outlets in a neighborhood and dietary intake and body mass index (BMI) among adults in Los Angeles County. We also assessed whether this association depends on the geographic size of the food environment. Methods We analyzed data from the 2011 Los Angeles County Health Survey. We created buffers (from 0.25 to 3.0 miles in radius) centered in respondents’ residential addres...

  6. Timeline for WSMALA Women and the Arts in Los Angeles 1960-1999

    OpenAIRE

    UCLA Center for the Study of Women

    2012-01-01

    “From Protest to Policy: Women’s Social Movement Activities in Los Angeles, 1960-1999,” a multi-year research project by the UCLA Center for the Study of Women examined the how grassroots advocacy has shaped gender-related public policy in the arts, employment, healthcare, and higher education through an analysis of local women’s groups in Los Angeles between 1960 and 1999. During this period, women’s community groups organized around gender-based problems their members encountered in their l...

  7. Description of patients with bony tumors treated with prosthesis in reconstruction in the Servicio de Ortopedia at the Hospital Rafael Angel Calderon Guardia 2000-2006

    International Nuclear Information System (INIS)

    The use of prosthesis in reconstruction for the management of extensive tumor bone lesions. The study of six patients treated is performed at the Hospital Rafael Angel Calderon Guardia, who were treated for aggressive tumors in the period 2001-2006. Bony tumors are conceptualized, as well as fundamental aspects of cell biology in its development and the classification of the same. Also, relevant information is included with relation to the most frequent indications and possible treatments. In all six cases was placed the rescue prosthesis, four of them has been obtained excellent results. Limb amputation has been the only alternative until the decade of the 70 and survival rates with this treatment were 10 to 20% survival at 5 years. Today, with advances in chemotherapy and limb salvage prosthesis, patients without metastases at diagnosis have a survival of 65 to 75% at five years. The study has made it possible to simultaneously to analyze some aspects of care to these patients; such as: time of biopsy, time of diagnosis, time of initiation of chemotherapy and surgical intervention time. Through this study has concluded that when referring to a malignant tumor of bone is absolutely essential that the process of diagnosis and initiation of treatment of limb salvage surgery are addressed as soon as possible. Finally, some recommendations are raised to strengthen the treatment of malignant tumors in the Hospital Rafael Angel Calderon Guardia. (author)

  8. Los Angeles Free-Net: an experiment in interactive telecommunication between lay members of the Los Angeles community and health care experts.

    OpenAIRE

    Bluming, A; Mittelman, P S

    1996-01-01

    The Los Angeles Free-Net, an interactive community information resource, was established in part to help community members become more effective consumers of health care services. By providing timely, expert answers to anonymously asked medical questions at no charge, we hope to decrease unnecessary physician-patient encounters, encourage effective preventive-health measures, and improve the overall results of health care in our community. Although it is too early to assess health care benefi...

  9. AnGel System for the diagnosis of generators in operation; Sistema AnGeL para el diagnostico de generadores en operacion

    Energy Technology Data Exchange (ETDEWEB)

    De la Torre V, H. Octavio; Ramirez N, J. Tomas; Pascacio de los S, Alberth; Reyes M, Oscar A; Carrillo C, Jaime; Iturbe F, Marlene [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico); Ponce de Leon V, Eugenio [Comision Federal de Electricidad (Mexico)

    2005-07-01

    The continuous monitoring of the electrical variables of a generator allows the knowing of the operating status of the main components of the equipment, which is helpful at the time of emitting a diagnosis of the same one. System of diagnosis for generators of operation, denominated AnGel System (acronym of Analysis of Generators in Line). The system was developed by the Management of Electrical equipment of the Instituto de Investigaciones Electricas (IIE) and implemented in the six units of generation of the Manzanillo Thermoelectric Unit. The present article includes a description of the main components and functions. The world-wide tendency in monitoring systems of the fault statistics, were key elements in defining the variable to be monitored: Partial discharges (PD), Shaft current (SC), Neutral current (NC), Tangential Magnetic (TM) flux, Voltages and currents of line (as reference to the operation point). The main processes of deterioration that are intended to be observed with each one of these variables are described with greater thoroughness in the article Sistema AnGel: Aspectos teorico-practicos para el diagnostico de generadores en operacion (AnGel System: Theoretical-practical aspects for the diagnosis of generators in operation), contained in the section of Research Activities in this same issue of the IIE bulletin. [Spanish] La monitorizacion continua de las variables electricas de un generador permite conocer el estado operativo de los principales componentes del equipo, lo que es de ayuda a la hora de emitir un diagnostico del mismo. Sistema de diagnostico para generadores de operacion, denominado Sistema AnGeL (acronimo de Analisis de Generadores en Linea). El sistema fue desarrollado por la Gerencia de Equipos Electricos del IIE e implementado en las seis unidades de generacion del Complejo Termoelectrico Manzanillo. El presente articulo incluye una descripcion de los principales componentes y funciones. La tendencia mundial en sistemas de

  10. Redox activity of airborne particulate matter at different sites in the Los Angeles Basin

    International Nuclear Information System (INIS)

    Epidemiologic studies have shown associations between ambient particulate matter (PM) and adverse health outcomes including increased mortality, emergency room visits, and time lost from school and work. The mechanisms of PM-related health effects are still incompletely understood, but a hypothesis under investigation is that many of the adverse health effects may derive from oxidative stress, initiated by the formation of reactive oxygen species (ROS) within affected cells. While the adverse effects from PM have historically been associated with the airborne concentration of PM and more recently fine-particle PM, we considered it relevant to develop an assay to quantitatively measure the ability of PM to catalyze ROS generation as the initial step in the induction of oxidative stress. This ability of PM could then be related to different sources, chemical composition, and physical and spatial/temporal characteristics in the ambient environment. The measurement of ROS-forming ability in relation to sources and other factors will have potential relevance to control of redox-active PM. If oxidative stress represents a relevant mechanism of toxicity from PM, the measurement of redox activity represents a first step in the elucidation of the subsequent downstream processes. We have developed an assay for PM redox activity, utilizing the reduction of oxygen by dithiothreitol which serves as an electron source. We have found that PM will catalyze the reduction of oxygen and have examined the distribution and chemical characteristics of the redox activity of PM fractions collected in different sites in the Los Angeles Basin. Samples of concentrated coarse, fine, and ultrafine PM, obtained with aerosol concentrators, were studied with regard to their chemical properties and redox activity. Redox activity was highest in the ultrafine fraction, in agreement with results indicating ultrafines were the most potent toward inducing that heme oxygenase expression and depleting

  11. The Impact of Proposition 13 on Public Employee Relations: The Case of Los Angeles.

    Science.gov (United States)

    Swimmer, Gene

    1982-01-01

    The impact of Proposition 13 and subsequent state bailout legislation on public employee relations in the City and County of Los Angeles (California) has been a new collective bargaining environment. The 1979 negotiations, where a countywide strike was narrowly averted, illustrate the hardening of management attitudes and union militancy. (MLF)

  12. Retention Patterns in the Los Angeles Unified School District, 1983-84. Publication No. 456.

    Science.gov (United States)

    Joubert, Lionel; Weisbender, Leo

    This report provides information on the number and percentage of students retained in grade during the 1983-84 school term in the Los Angeles Unified School District (LAUSD). Data were analyzed from reports filed by all principals and from the LAUSD Racial and Ethnic Survey, Fall 1983. Children's centers, adult schools, occupational centers, and…

  13. Nutritional Status of Mexican American Preschool Children in East Los Angeles and San Diego.

    Science.gov (United States)

    Lewis, Jane S.; And Others

    Results of a 1968 pilot study of the nutritional status of Mexican American preschool children in East Los Angeles and San Diego are reported in this document. Questionnaire data collected from mothers of preschool children are presented in terms of a description of families, prenatal care, clinical examinations, dietary intakes, and biochemical…

  14. Tiene Arte Valor Afuera Del Barrio: The Murals of East Los Angeles and Boyle Heights

    Science.gov (United States)

    Holscher, Louis M.

    1976-01-01

    Discusses the themes of the murals and explores the possible uses that the murals in Los Angeles have for the outsider, the non-Chicano, for those who have only a little understanding or awareness of the Chicano community. (Author/AM)

  15. 76 FR 53115 - Expansion of Foreign-Trade Zone 202; Los Angeles, CA

    Science.gov (United States)

    2011-08-25

    ... inviting public comment has been given in the Federal Register (75 FR 47536-47537, 08/06/2010) and the... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF COMMERCE Foreign-Trade Zones Board Expansion of Foreign-Trade Zone 202; Los Angeles, CA Pursuant to its...

  16. 76 FR 86 - Expansion/Reorganization of Foreign-Trade Zone 202, Los Angeles, CA

    Science.gov (United States)

    2011-01-03

    ..., filed 12/11/2009); Whereas, notice inviting public comment has been given in the Federal Register (74 FR... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF COMMERCE Foreign-Trade Zones Board Expansion/Reorganization of Foreign-Trade Zone 202, Los Angeles, CA Pursuant...

  17. Immigration and the Low-Cost Housing Shortage: The Los Angeles Area's Experience.

    Science.gov (United States)

    Nielsen, John

    Rising housing costs, increased homelessness, and the debate over illegal immigrants residing in publically assisted housing have renewed media and public interest in immigration's contribution to the Los Angeles, California area's problems of scarce low-cost housing, homelessness, and housing code violations. Recent data suggest that immigrants…

  18. Catholic Education for Mexican Americans in Los Angeles: A Brief Historical Overview

    Science.gov (United States)

    Lopez, Eduardo F.

    2016-01-01

    This article explores the historical development of Catholic schools for Mexican Americans in Los Angeles, California. It provides a brief overview of events spanning the 1700s to the 1970s, with particular attention placed on examining the administration of Cardinal James Francis Aloysius McIntyre from 1948-1969. While his predecessor, Archbishop…

  19. The Work Experience of Undocumented Mexican Women Migrants in Los Angeles.

    Science.gov (United States)

    Simon, Rita J.; DeLey, Margo

    1984-01-01

    Undocumented Mexican women workers in Los Angeles were interviewed about their work experience in the United States. Most of them work in factories, not in domestic service. Most earn a salary above minimum wage but below that earned by documented women, and 80 percent believe their treatment at work equals that of other workers. (KH)

  20. Comparing Outcomes for Los Angeles County's HUD-Assisted and Unassisted CalWORKS Leavers.

    Science.gov (United States)

    Verma, Nandita; Hendra, Richard

    The impact of supplemental assistance from the U.S. Department of Housing and Urban Development (HUD) on CalWORKs leavers was examined in a study of CalWORKs recipients in Los Angeles County, California, who stopped receiving welfare benefits in the third quarter of 1998. Two groups received federal housing assistance at the time of exit from…

  1. Los Angeles OneSource System Youth Participant Customer Satisfaction Survey, 2010-2011

    Science.gov (United States)

    Heisley, Deborah D.; Moore, Richard W.; Patch, Robin N.

    2012-01-01

    As part of the Workforce Investment Act of 1998, Los Angeles OneSource Centers offer low-income youth ages 14-21 services aimed at improving educational achievement, enhancing job skills, and preparing for college. The primary purpose of this study was to evaluate the youths' satisfaction with services received at 14 OneSource Centers throughout…

  2. Antifungal Activity of Decursinol Angelate Isolated from Angelica gigas Roots Against Puccinia recondita

    Directory of Open Access Journals (Sweden)

    Mi-Young Yoon

    2011-04-01

    Full Text Available Rust causes significant losses in the yield and quality of various crops. The development of new effective and environmentally benign agents against the pathogen is of great interest. In the course of searching a natural antifungal compound from medicinal plants, we found that the methanol extract of Angelica gigas roots had a potent control efficacy against wheat leaf rust (WLR caused by Puccinia recondita. The antifungal substance was isolated from the methanol extract by silica gel column chromatography, alumina column chromatography and C18 preparative HPLC. It was identified as decursinol angelate by EI-MS and 1H-NMR data. In in vivo test, decursinol angelate effectively suppressed the development of WLR and red pepper anthracnose (RPA among the 6 plant diseases tested. In addition, the wettable powder-type formulation of ethyl acetate extract of A. gigas roots significantly suppressed the development of WLR. The crude extract containing decursinol angelate and the chemical appear to be a potential candidate for control of WLR. In addition, this is the first report on the in vivo antifungal activity of decursinol angelate against WLR as well as RPA

  3. Breastfeeding Practices of Japanese Mothers in the South Bay Area of Los Angeles.

    Science.gov (United States)

    Hongo, Hiroko

    A study investigated the attitudes of Japanese breastfeeding mothers in the South Bay area in Los Angeles. The sample consisted of 20 Japanese mothers over the age of 18 who were born in Japan, who recently came to the United States, and whose youngest child has been breastfed for at least 6 months. Subjects were interviewed in their native…

  4. Conference report from the 2012 AHA scientific sessions in Los Angeles

    NARCIS (Netherlands)

    Westenbrink, B. Daan; Edwards, Andrew G.; Miyamoto, Shigeki

    2013-01-01

    The 2012 Scientific Sessions of the American Heart Association was held on November 3 - 7 in Los Angels, California. It covered up-to-date research on both basic- and clinical-cardiovascular science. We describe the highlights of the meeting focusing on basic science and clinical cardiology. More sp

  5. 77 FR 43656 - BNSF Railway Company-Abandonment Exemption-in Los Angeles County, CA

    Science.gov (United States)

    2012-07-25

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board BNSF Railway Company--Abandonment Exemption--in Los Angeles County, CA BNSF Railway Company (BNSF) has filed a verified notice of exemption under 49 CFR pt. 1152 subpart...

  6. Brown: A Taxonomic Analysis of Avian Faunal Remains from Three Sites in Marina Del Rey, Los Angeles County, California

    OpenAIRE

    Fenenga, Gerrit L

    1990-01-01

    A Taxonomic Analysis of Avian Faunal Remains from Three Sites in Marina Del Rey. Los Angeles County, California Joan C. Brown. Coyote Press Archives of California Prehistory No. 30, vii + 71 pp., 8 tables, appendix, 1989, $6.20 (paper).

  7. The grand experiment, a historical account of a museum/school partnership: The Alexander Science Center School of Los Angeles

    Science.gov (United States)

    Heughins, Andrew R.

    This study tells the history of The Alexander Science Center School, a museum/school partnership between the Los Angeles Unified School District and the California Science Center created with the goal of becoming a national model in elementary science education. To provide a background to the development of the school, this study explores the definition of what constitutes a museum school, including the existence of a formal partnership between a school district and a museum and systemic change in the partner institutions leading to a marriage of formal and informal learning styles. In addition, the literature review explores the unique models of museum/school partnerships developed in the United States. The history of the Alexander Science Center School is told in a narrative style using documentation from the schools development and through interviews with individuals who played key roles, from the schools inception through its opening. The study covers the initiation of concept, architectural design, formation of the partnership, and development of the curriculum. The study also identifies the roadblocks encountered in the schools development and makes recommendations for school districts and institutions seeking to create future museum school projects. In addition, a comparison is made other recently studied museum schools to provide a context for the school's historical and programmatic development.

  8. The 1997 Los Angeles Basin Passive Seismic Experiment – a dense, urban seismic array to investigate basin lithospheric structures

    OpenAIRE

    Kohler, Monica D.; Kerr, Bryan C.; Davis, Paul M.

    2000-01-01

    In 1997, 18 seismic stations were installed in the Los Angeles basin to record teleseismic, regional, and local earthquakes. The goals of the experiment were to quantify amplification of ground motion due to variations in sedimentary environments and subsurface structures, and to examine the tectonic extensional and compressional history of the Los Angeles basin and San Gabriel Mountains by tomograhic imaging. The linear array spanned the entire basin between Seal Beach to the south and Az...

  9. Long term compliance with California's Smoke-Free Workplace law among bars and restaurants in Los Angeles County

    OpenAIRE

    M.D. Weber; Bagwell, DAS; Fielding, J E; Glantz, Stanton A. Ph.D.

    2003-01-01

    Objective: To assess long term compliance with the California Smoke-Free Workplace Law in Los Angeles County freestanding bars and bar/restaurants. Design: Population based annual site inspection survey of a random sample of Los Angeles County freestanding bars and bar/restaurants was conducted from 1998 to 2002. Main outcome measures: The primary outcomes of interest were patron and employee smoking. The secondary outcomes of interest were the presence of ashtrays and designated outdoor smok...

  10. Shanghai Alleys, Theatrical Practice, and Cinematic Spectatorship: From Street Angel (1937 to Fifth Generation Film

    Directory of Open Access Journals (Sweden)

    Alexander Des Forges

    2010-01-01

    Full Text Available This article argues that a certain type of Shanghai film of the Republican period, exemplified by 1937’s Street Angel (馬路天使, Malu tianshi, makes use of a specific mode of spatial organization, modelled on the theatre, to represent the urban environment. In the case of Street Angel, and later on in 1964’s Stage Sisters (舞台姐妹, Wutai jiemei, the interaction between performers and audiences characteristic of the Shanghai theatre experience serves as a crucial ground on which to base calls to political action. For a variety of related reasons, both the city of Shanghai and this mode of spatial organization so closely associated with it vanish from the big screen in the 1980s and 1990s, and begin to make a return only at the turn of the new century.

  11. Methane and Ethane Measurements from a New TCCON Station in Los Angeles

    Science.gov (United States)

    Wunch, D.; Roehl, C. M.; Blavier, J. L.; Allen, N.; Treffers, R.; Toon, G. C.; Wennberg, P. O.

    2012-12-01

    The Los Angeles urban region emits large amounts of methane (~0.44Tg/year) into the atmosphere. It is currently unclear exactly how much of this is biogenic (landfills, cattle), and how much is from natural gas (natural seeps or fugitive emissions from the natural gas infrastructure). Since natural gas contains ethane, whereas biogenic emissions contain none, simultaneous measurements of ethane and methane offer the possibility of separating the biogenic versus natural gas emissions of methane. We investigate this using total column measurements from a new Total Carbon Column Observing Network (TCCON) remote sensing station in the Los Angeles suburb of Pasadena, which began measurements in July 2012. These measurements will be put into the context of historical remote sensing and in situ measurements described by Wennberg et al., 2012 (doi:10.1021/es301138y).

  12. Tick-borne Relapsing Fever and Borrelia hermsii, Los Angeles County, California, USA

    Science.gov (United States)

    Raffel, Sandra J.; Schrumpf, Merry E.; Webster, Larry S.; Marques, Adriana R.; Spano, Robyn; Rood, Michael; Burns, Joe; Hu, Renjie

    2009-01-01

    The primary cause of tick-borne relapsing fever in western North America is Borrelia hermsii, a rodent-associated spirochete transmitted by the fast-feeding soft tick Ornithodoros hermsi. We describe a patient who had an illness consistent with relapsing fever after exposure in the mountains near Los Angeles, California, USA. The patient’s convalescent-phase serum was seropositive for B. hermsii but negative for several other vector-borne bacterial pathogens. Investigations at the exposure site showed the presence of O. hermsi ticks infected with B. hermsii and the presence of rodents that were seropositive for the spirochete. We determined that this tick-borne disease is endemic to the San Gabriel Mountains near the greater Los Angeles metropolitan area. PMID:19624916

  13. Systemic Reform in a Federated System:Los Angeles at the Turn of the Millennium

    Directory of Open Access Journals (Sweden)

    David Menefee-Libey

    2004-10-01

    Full Text Available I synthesize some of the lessons we have learned about systemic school reform in order and derive two explicit hypotheses about when such reforms are likely to be more and less successful. The first hypothesis focuses on program implementation: to achieve success, any systemic reform must overcome challenges at each stage of the policy-making process, from agenda-setting to policy choice to implementation. The second hypothesis focuses on the federated nature of education policymaking in the United States: any successful systemic reform must offer a program that aligns local efforts with state and sometimes federal policy. I derive and test more specific hypotheses related to recent systemic reform efforts in the Los Angeles region—especially the Los Angeles Annenberg Metropolitan Project, or LAAMP—which ran from 1995 through 2001. The case confirms the hypotheses and enables a clearer understanding of systemic school reform.

  14. Remote Sensing of Spatial Distributions of Greenhouse Gases in the Los Angeles Basin

    Science.gov (United States)

    Fu, Dejian; Sander, Stanley P.; Pongetti, Thomas J.; Cheung, Ross; Stutz, Jochen

    2010-01-01

    The Los Angeles air basin is a significant anthropogenic source of greenhouse gasses and pollutants including CO2, CH4, N2O, and CO, contributing significantly to regional and global climate change. Recent legislation in California, the California Global Warning Solutions Act (AB32), established a statewide cap for greenhouse gas emissions for 2020 based on 1990 emissions. Verifying the effectiveness of regional greenhouse gas emissions controls requires high-precision, regional-scale measurement methods combined with models that capture the principal anthropogenic and biogenic sources and sinks. We present a novel approach for monitoring the spatial distribution of greenhouse gases in the Los Angeles basin using high resolution remote sensing spectroscopy. We participated in the CalNex 2010 campaign to provide greenhouse gas distributions for comparison between top-down and bottom-up emission estimates.

  15. The Blue Angel. I - The mineralogy and petrogenesis of a hibonite inclusion from the Murchison meteorite

    Science.gov (United States)

    Armstrong, J. T.; Meeker, G. P.; Huneke, J. C.; Wasserburg, G. J.

    1982-04-01

    Results are presented of a mineralogical and petrological examination of a relatively large hibonite-containing inclusion in the Murchison chondrite called the Blue Angel. Mechanisms of formation and modification of hibonite-rich inclusions are investigated. Evidence is found that modifying processes occurred before the inclusion was incorporated into its present location, which indicates a sequence of aqueous and metamorphic alteration followed by disruption and relithification of the protometeoritic material. The mineral chemistry and petrography of the Blue Angel is consistent with a three stage formation history, and extensive alteration of Ca-Al-rich inclusions may have occurred by aqueous alteration and thermal metamorphism followed by explosive mixing processes on a parent body.

  16. The touch of the efficiency: the case of the tower of the angel; El toque de la eficiencia: el caso de la torre del angel

    Energy Technology Data Exchange (ETDEWEB)

    Trillo, Jose Luis [Ingenieria en Aire y Control (Mexico); Frias, Jose Luis [DHIMEX (Mexico)

    2002-09-01

    With the purpose of reducing the heat in the interior of the Tower of the Angel, building of offices located in avenida Paseo de la Reforma of Mexico City, a renovation was carried out that included the installation of an insulating crystal cover in all the building. Also, it was opted for an environmental system of air-cooling to fulfill the functions of the HVAC (Heating, Ventilation and Air Conditioning), systems. It is possible to indicate that, in addition to the energy saving, the applied technology allowed to transform an old and uncomfortable construction into a construction of worldwide class, able to compete with new works of the city and harmonize with present environmental and aesthetic requirements. [Spanish] Con objeto de reducir el calor al interior de la Torre del Angel, edificio de oficinas ubicado en la avenida Paseo de la Reforma de la Ciudad de Mexico, se llevo a cabo una renovacion que incluyo la instalacion de una cubierta de cristal aislante en todo el inmueble. Asimismo, se opto por un sistema ambiental de enfriamiento de aire para cumplir con las funciones de los sistemas HVAC (Heating, Ventilation and Air Conditioning, por sus siglas en ingles). Cabe senalar que, ademas del ahorro energetico, la tecnologia aplicada permitio transformar una construccion vieja e incomoda en una edificacion de clase mundial, capaz de competir con las nuevas obras de la ciudad y armonizar con los requerimientos ambientales y esteticos actuales.

  17. Measles reporting completeness during a community-wide epidemic in inner-city Los Angeles.

    OpenAIRE

    Ewert, D P; S Westman; Frederick, P D; Waterman, S. H.

    1995-01-01

    A study was undertaken to determine the extent of measles underreporting among preschool-age children. In two community surveys conducted in inner-city Los Angeles during 1990 and 1991, respondents were asked whether preschool-age children in their households had ever been ill with measles. Information about measles episodes was obtained and medical records were reviewed, when available. A probable measles case was defined as having 3 or more days of rash with fever of 38.3 degrees centigrade...

  18. Censorship and the Changing Society : Noel Coward's Fallen Angels

    OpenAIRE

    赤井, 朋子

    2000-01-01

    This article purposes to re-examine British theatrical censorship in the 1920s by referring to the censorship of Noel Coward's controversial play, Fallen Angels. The study refutes the theory of a simple opposition between the state and the author and, by situating the censorship of dramatic works within a larger cultural context, discusses the fluidity and complexity of power relations between the censor and the dramatist. Drawing upon archival materials of theatrical censorship, this article...

  19. Controlling transportation and wildlife-habitat linkages through partnerships, planning, and science near Los Angeles, California

    OpenAIRE

    Sauvajot, Raymond M.; Pettler, Amy; Marquez, Barbara; Sikich, Jeffrey; Riley, Seth

    2005-01-01

    Beginning in 1996, the National Park Service, Caltrans, and other agencies and organizations have worked together collecting, analyzing, and sharing data about regional wildlife- movement corridors within the Santa Susana Mountains, Simi Hills, and Santa Monica Mountains, near Los Angeles, California. This region is characterized by intense urban development, several major multi-lane highways, and large expanses of protected open space supporting abundant wildlife. Scientific studies include ...

  20. An analysis of asthma hospitalizations, air pollution, and weather conditions in Los Angeles County, California

    OpenAIRE

    Delamater, Paul L.; Andrew O. Finley; Banerjee, Sudipto

    2012-01-01

    There is now a large body of literature supporting a linkage between exposure to air pollutants and asthma morbidity. However, the extent and significance of this relationship varies considerably between pollutants, location, scale of analysis, and analysis methods. Our primary goal is to evaluate the relationship between asthma hospitalizations, levels of ambient air pollution, and weather conditions in Los Angeles (LA) County, California, an area with a historical record of heavy air pollut...

  1. A model of homeless migration: homeless men in Skid Row, Los Angeles

    OpenAIRE

    Rahimian, A; J R Woich; Koegel, P

    1992-01-01

    Homeless people are popularly portrayed as highly mobile, but their migration behavior has never been systematically analyzed. In this paper a conceptual model of homeless migration is developed that links migration behavior with the coping status of homeless individuals. The model is evaluated by using data drawn from a recent random probability sample of men surveyed in Skid Row, Los Angeles, CA. Results indicate that homeless migrants tended to be young, never married, white, mentally disa...

  2. Cars, buses, and jobs: Welfare Participants and Employment Access in Los Angeles

    OpenAIRE

    Blumenberg, Evelyn A.; Ong, Paul M.

    2002-01-01

    Some studies suggest that, among other obstacles to employment, welfare participants face a spatial separation from jobs and other employment-related services. Using data on welfare participants, low-wage jobs, and public transit in Los Angeles County, this study examines the relative access that welfare participants have to employment opportunities. Our analysis shows that welfare participants' access to employment varies dramatically depending on their residential location and commute mode....

  3. HIV vaccine acceptability among immigrant Thai residents in Los Angeles: a mixed-method approach

    OpenAIRE

    Lee, SJ; Brooks, RA; Newman, PA; Seiden, D; Sangthong, R; Duan, N

    2008-01-01

    This study examined HIV vaccine acceptability among immigrant Thai residents in Los Angeles, California. We combined a qualitative research method (focus groups) with an innovative market research method (conjoint analysis). Focus groups explored social issues, concerns, barriers and motivators associated with HIV vaccine acceptability. Conjoint analysis was used to assess preferences among eight hypothetical HIV vaccines with varying attribute profiles and the impact of various attributes on...

  4. Salvation and social work : conversions and charity among Pentecostal Christians in Los Angeles

    OpenAIRE

    2013-01-01

    This thesis is based on five and a half months of fieldwork in Los Angeles, California in 2012, and explores how a non-profit Pentecostal Christian charity organization combines social work with evangelizing. From the material I collected through spending time within a highly religious community, I identify possible explanations to why Pentecostalism is considered the fastest growing religious denomination in the world by many. By analyzing the very different ways Pentecostals tell their ...

  5. Markers of inflammation and risk of ovarian cancer in Los Angeles County

    OpenAIRE

    Wu, Anna H.; Pearce, Celeste; Tseng, Chiu-Chen; Templeman, Claire; Pike, Malcolm C.

    2009-01-01

    Factors that increase inflammation have been suggested to influence the development of ovarian cancer, but these factors have not been well studied. To further investigate this question we studied the role of talc use, history of endometrioisis, and use of non-steroidal anti-inflammatory drugs (NSAIDs) and risk of ovarian cancer in a population-based case-control study in Los Angeles County involving 609 women with newly diagnosed epithelial ovarian cancer and 688 population-based control wom...

  6. UTILIZATION OF HEALTH CARE SERVICES AMONG ADULTS ATTENDING A HEALTH FAIR IN SOUTH LOS ANGELES COUNTY

    OpenAIRE

    Macias, Eduardo P.; Morales, Leo S.

    2000-01-01

    A bilingual survey was developed to collect information regarding socio-demographics, access to medical and dental care, health insurance coverage, perceived health status, and use of folk medicine providers from 70 adults presenting to a health fair in South Los Angeles County. Ninety-seven percent of respondents were foreign-born. Seventy-nine percent reported having no health insurance during the year prior to survey. Of the uninsured, 61 percent lacked a doctor visit and 76 percent lacked...

  7. The "Stylish Battle" World War II and Clothing Design Restrictions in Los Angeles

    OpenAIRE

    Hannon, Laura Bellew

    2012-01-01

    This dissertation explores the wartime fashion culture of the city of Los Angeles during the Second World War in order to explore consumption-based tensions that emerged in response to federal restrictions for the purpose of conservation. The War Production Board's General Limitation Order L-85 took decisions over the measurements of clothing (i.e. hem width or sleeve length), the presence of embellishments (i.e. pockets or dolman sleeves), and the general silhouette of fashion (i.e. relative...

  8. Residential proximity to traffic and adverse birth outcomes in Los Angeles county, California, 1994-1996.

    OpenAIRE

    Wilhelm, Michelle; Ritz, Beate

    2003-01-01

    We reported previously that increases in ambient air pollution in the Los Angeles basin increased the risk of low weight and premature birth. However, ambient concentrations measured at monitoring stations may not take into account differential exposure to pollutants found in elevated concentrations near heavy-traffic roadways. Therefore, we used an epidemiologic case-control study design to examine whether residential proximity to heavy-traffic roadways influenced the occurrence of low birth...

  9. Traffic-Related Air Toxics and Term Low Birth Weight in Los Angeles County, California

    OpenAIRE

    Wilhelm, Michelle; Ghosh, Jo Kay; Su, Jason; Cockburn, Myles; Jerrett, Michael; Ritz, Beate

    2011-01-01

    Background: Numerous studies have linked criteria air pollutants with adverse birth outcomes, but there is less information on the importance of specific emission sources, such as traffic, and air toxics. Objectives: We used three exposure data sources to examine odds of term low birth weight (LBW) in Los Angeles, California, women when exposed to high levels of traffic-related air pollutants during pregnancy. Methods: We identified term births during 1 June 2004 to 30 March 2006 to women res...

  10. The Individual Association Between Food Store Types and Body Mass Index in Los Angeles County

    OpenAIRE

    Capone-Newton, Peter

    2013-01-01

    Using the Los Angeles Family and Neighborhood Survey (L.A. FANS), detailed individual-level data on shopping location, store name, and body mass index are analyzed to assess relationships between body mass index and food store types. The analysis groups similar store brands to create unique food store types, providing finer discrimination than industrial classification or annual sales volume. Seven food store types are created: English-language major supermarket chains, discount food stores...

  11. Decolonial Arts Pedagogy and the Visual Metaphor: The Great Wall of Los Angeles Mural Project

    OpenAIRE

    Rogel, Carlos

    2015-01-01

    This thesis examines the methodology used to create the subject matter and pedagogy of The Great Wall of Los Angeles mural created by Chicana artist, Judy Baca. The analysis explores the visual metaphors present in the half-mile public art project through decolonial theory and visual metaphor analysis, and examines the artwork's aesthetic characteristics using cultural analytics techniques. The mural's social justice outcomes are considered for its ability to achieve youth empowerment through...

  12. In the postmodern mirror: intertextuality in Angels and Insects by Antonia Susan Byatt

    OpenAIRE

    Buda Agata

    2015-01-01

    The aim of the paper is to analyse the novel Angels and Insects by Antonia Susan Byatt in terms of intertextual references. The author’s assumptions are based on the categorisation by Ryszard Nycz, who distinguishes three major types of intertexts: text versus text, text versus literary genre and text versus mimesis. Byatt uses intertextuality mainly to comment on the role of nature in the world, as well as to enhance the importance of human relationship with nature. Moreover, the writer move...

  13. Food Access, Availability, and Affordability in 3 Los Angeles Communities, Project CAFE, 2004-2006

    OpenAIRE

    Vallianatos, Mark; Azuma, Andrea Misako; Gilliland, Susan; Gottlieb, Robert

    2010-01-01

    Introduction Racial/ethnic minority communities are at increasingly high risk for chronic diseases related to obesity. Access to stores that sell affordable, nutritious food is a prerequisite for adopting a healthful diet. The objective of this study was to evaluate food access, availability, and affordability in 3 nonoverlapping but similar low-income communities in urban Los Angeles, California. Methods Using a community-based participatory research approach, we trained community members to...

  14. Taste is Within: Decorative Material Culture at Home in Los Angeles and Lima, Peru

    OpenAIRE

    Orlando, Angela

    2012-01-01

    Influential scholars such as Pierre Bourdieu theorize that, because people practice unyielding habitus, members of the same class strata have similar taste and consume art objects reflective of this. In this dissertation, I address the relationships between art that is on display in the homes of 48 families (representing their taste preferences) and a range of economic and social variables. The sample consists of contemporary middle-class households - 32 in Los Angeles, California, and 16 in ...

  15. Public Opinion on Nutrition-Related Policies to Combat Child Obesity, Los Angeles County, 2011

    OpenAIRE

    Simon, Paul A.; Chiang, Choiyuk; Lightstone, Amy S.; Shih, Margaret

    2014-01-01

    We assessed public opinion on nutrition-related policies to address child obesity: a soda tax, restrictions on advertising unhealthy foods and beverages to children, and restrictions on siting fast food restaurants and convenience stores near schools. We analyzed data from 998 adults (aged ≥18 years) in the 2011 Los Angeles County Health Survey. Support was highest for advertising restrictions (74%), intermediate for a soda tax (60%), and lowest for siting restrictions on fast food restaurant...

  16. Los Angeles and the 1984 Olympic Games: Cultural Commodification, Corporate Sponsorship, and the Cold War

    OpenAIRE

    Lieser, Joshua Ryan

    2014-01-01

    ABSTRACT OF THE DISSERTATION Los Angeles and the 1984 Olympic Games: Cultural Commodification, Corporate Sponsorship, and the Cold WarbyJosh R. LieserDoctorate of Philosophy, HistoryUniversity of California, Riverside, December 2014Dr. Catherine Gudis, ChairpersonThe 1984 Olympics offer an unprecedented opportunity to consider the way that sports were used as cultural and ideological warfare or soft power in the late stages of the Cold War era. Despite the Soviet Union's decision to boycott ...

  17. Protocols for Late Maxillary Protraction in Cleft Lip and Palate Patients at Childrens Hospital Los Angeles

    OpenAIRE

    Yen, Stephen L-K

    2011-01-01

    This paper describes the protocols used at Childrens Hospital Los Angeles (CHLA) to protract the maxilla during early adolescence. It is a modification of techniques introduced by Eric Liou with his Alternate Rapid Maxillary Expansion and Constriction (ALT-RAMEC) technique. The main differences between the CHLA protocol and previous maxillary protraction protocols are the age the protraction is attempted, the sutural loosening by alternating weekly expansion with constriction and the use of C...

  18. Reproductive success and female preference in the amazonian cichlid angel fish, Pterophyllum scalare (Lichtenstein, 1823)

    OpenAIRE

    Maria do Socorro R.F Cacho; Sathyabama Chellappa; Maria Emília Yamamoto

    2006-01-01

    The angel fish, Pterophyllum scalare is a cichlid native to the Amazon Basin of Brazil and is exported as an ornamental fish. In this study the importance of the experience and previous reproductive success of males in mate selection was investigated. In order to investigate reproductive experience, six pairs of males (experienced and inexperienced) and six females were used. Males were placed in an aquarium, where one female was released. Mate selection was verified by the time spent by a fe...

  19. Crowdfunding : Startups' alternative funding source beyond banks, business angels and venture capitalists.

    OpenAIRE

    Metelka, Alban

    2014-01-01

    Entrepreneurship is the ‘lifeblood’ of every economic development. It is a process of identifying ideas and launching a venture, allocating and organising the needed resources and facing the risks and rewards of it. As a research field entrepreneurship is one of the most researched subjects in entrepreneurial finance. Entrepreneurial finance has mainly focused on formal financing sources, like business angels, banks and venture capitalists. Since 2008, crowdfunding appeared as a financing sou...

  20. Water Use in Los Angeles, California: Consumption Patterns, Ecosystem Response and Impact on Regional Water Budgets

    Science.gov (United States)

    Hogue, T. S.

    2014-12-01

    The City of Los Angeles relies heavily on external water sources, primarily the Eastern Sierra, Northern California and the Colorado River, and approximately 90% of the City's water supply is snowpack dependent. In recent years, water conservation measures have been implemented in response to regional drought, which include a tiered pricing structure and watering restrictions. As a result of implemented conservation policies, Los Angeles reported the lowest water consumption per capita per day in 2011 among cities over 1 million people in the U.S. This presentation will highlight our ongoing work to better understand the coupling between humans, ecosystems and water across the City of Los Angeles, especially during the recent drought period. Our work is unique in that we integrate social, ecological, and hydrologic data, including ten years of residential water consumption data for the entire city of Los Angeles, extensive groundwater well data, socio-economic information and remote sensing to evaluate relationships as well as spatial and temporal patterns. Developed statistical models demonstrated that Single-Family Residential (SFR) water use across the City is primarily driven by household income, landscape greenness, water rates and water volume allocation,, with higher consumption rates in the northern, warmer and more affluent parts, and lower consumption rates in the less affluent neighborhoods near Downtown. Landscape use also varies greatly across the city, averaging 50% of total SFR. Our evaluation of conservation efforts shows that the combination of mandatory watering restrictions and price increase led to a water reduction of 23%, while voluntary restrictions led to only a 6% reduction in water use. Relationships of water use to ecosystems (greenness) and groundwater variability were also evaluated and will be highlighted. Our ultimate goal is to improve predictions of human-water interactions in order to drive policy change and guide future demand

  1. Analýza společnosti Aqua Angels EUROPE s.r.o

    OpenAIRE

    Bláhová, Kateřina

    2014-01-01

    The aim of this thesis is the real representation of the company's business Auqa Angels EUROPE s.r.o. - a brief description of each area inside the company, know-how, product description, pricing and insight into the distribution system and the importance of sales personnel in the company. The author is concerned with the individual marketing activities of this small company and evaluate their effectiveness. Furthermore, this work aims at a competitive comparison in the Czech market with bott...

  2. Diasporic media in multicultural cities: a comparative study on Korean media in Vancouver and Los Angeles

    OpenAIRE

    Sherry S. Yu

    2012-01-01

    In multicultural cities, what are the opportunities and challenges for creating an interculturally inclusive media system, as a means of enhancing multicultural citizenship and cultural literacy among all members of society? This study explores the rapidly growing, yet understudied, Korean media sector in Vancouver and Los Angeles. The passage of Korea’s new election law in 2009, which extends voting rights to overseas Koreans, is likely to intensify the connection between the home country an...

  3. The Gaze of the Soul and of the Angel in the Renaissance Philosophy of Marsilio Ficino

    Directory of Open Access Journals (Sweden)

    Marko Uršič

    2015-05-01

    Full Text Available The Renaissance rediscovered the soul as the focus of the universe. Marsilio Ficino calls the soul the “bond of the world” (copula mundi, because it connects the earth and the heaven, immanence and transcendence, time and eternity. On the other hand, the centre of the world becomes more and more relative during the Renaissance period, and individual souls live more and more in their particular times and spaces. In Renaissance paintings, a soul's point of view is determined by perspective, as developed by Masaccio, Fra Angelico, Piero della Francesca et al., and the very position of the eye also features as a “symbolic form” (Erwin Panofsky. However, above each individual and “mobile” soul there are the wings of the “motionless” angel: super animam mobilem est immobilis angelus, as Ficino says in his renaissance Christianity, in reviewing the Platonic-Gnostic myth of the omnipresent angelic gaze. In the archetype of the angel Ficino perceives a metaphor for the all-knowing Intellect, towards which the human soul ascends. Following the iconology of Ernst Gombrich, this paper also takes notice of the influence of Ficino's philosophy on Botticelli's paintings.

  4. The Walking Renaissance: A Longitudinal Analysis of Walking Travel in the Greater Los Angeles Area, USA

    Directory of Open Access Journals (Sweden)

    Kenneth Joh

    2015-07-01

    Full Text Available Promoting walking travel is considered important for reducing automobile use and improving public health. Recent U.S. transportation policy has incentivized investments in alternative, more sustainable transportation modes such as walking, bicycling and transit in auto-oriented cities such as Los Angeles. Although many past studies have analyzed changes in walking travel across the U.S., there is little clarity on the drivers of change. We address this gap by conducting a longitudinal analysis of walking travel in the greater Los Angeles area from 2001 to 2009. We use travel diary and household data from regional and national surveys to analyze changes in walking trip shares and rates across our study area. Results show that walking has significantly increased across most of Los Angeles, and that increases in walking trips generally correspond with increases in population, employment, and transit service densities. Estimates from fixed-effects regression analysis generally suggest a positive association between population density and walking, and that higher increases in transit stop density are correlated with increased walking trips to and from transit stops. These findings illustrate how regional planning efforts to pursue a coordinated land use-transit planning strategy can help promote walking in auto-oriented or vehicle adopting cities.

  5. Fault zone regulation, seismic hazard, and social vulnerability in Los Angeles, California: Hazard or urban amenity?

    Science.gov (United States)

    Toké, Nathan A.; Boone, Christopher G.; Arrowsmith, J. Ramón

    2014-09-01

    Public perception and regulation of environmental hazards are important factors in the development and configuration of cities. Throughout California, probabilistic seismic hazard mapping and geologic investigations of active faults have spatially quantified earthquake hazard. In Los Angeles, these analyses have informed earthquake engineering, public awareness, the insurance industry, and the government regulation of developments near faults. Understanding the impact of natural hazards regulation on the social and built geography of cities is vital for informing future science and policy directions. We constructed a relative social vulnerability index classification for Los Angeles to examine the social condition within regions of significant seismic hazard, including areas regulated as Alquist-Priolo (AP) Act earthquake fault zones. Despite hazard disclosures, social vulnerability is lowest within AP regulatory zones and vulnerability increases with distance from them. Because the AP Act requires building setbacks from active faults, newer developments in these zones are bisected by parks. Parcel-level analysis demonstrates that homes adjacent to these fault zone parks are the most valuable in their neighborhoods. At a broad scale, a Landsat-based normalized difference vegetation index shows that greenness near AP zones is greater than the rest of the metropolitan area. In the parks-poor city of Los Angeles, fault zone regulation has contributed to the construction of park space within areas of earthquake hazard, thus transforming zones of natural hazard into amenities, attracting populations of relatively high social status, and demonstrating that the distribution of social vulnerability is sometimes more strongly tied to amenities than hazards.

  6. Alcohol outlet density and alcohol consumption in Los Angeles county and southern Louisiana

    Directory of Open Access Journals (Sweden)

    Matthias Schonlau

    2008-11-01

    Full Text Available The objective of this study was to assess the relationship between alcohol availability, as measured by the density of off-premise alcohol outlets, and alcohol consumption in Los Angeles county and southern Louisiana, USA. Consumption information was collected through a telephone survey of 2,881 households in Los Angeles county and pre-Katrina southern Louisiana, nested within 220 census tracts. Respondents’ addresses were geo-coded and both neighbourhood (census tracts and buffers of varying sizes and individual (network distance to the closest alcohol outlet estimates of off-sale alcohol outlet density were computed. Alcohol outlet density was not associated with the percentage of people who were drinkers in either site. Alcohol outlet density was associated with the quantity of consumption among drinkers in Louisiana but not in Los Angeles. Outlet density within a one-mile buffer of the respondent’s home was more strongly associated with alcohol consumption than outlet density in the respondent’s census tract. The conclusion is that the relationship between neighbourhood alcohol outlet density and alcohol consumption is complex and may vary due to differences in neighbourhood design and travel patterns.

  7. Industria cinematografica e turismo nell’immaginario collettivo: Los Angeles tra mito e creatività

    Directory of Open Access Journals (Sweden)

    Franca Miani

    2016-05-01

    Full Text Available Obiettivo del contributo è quello di proporre alcuni spunti di riflessione sul caso della città di celluloide più nota al mondo: Los Angeles. Più in particolare s’intende analizzare la stretta relazione che intercorre tra l’attrattività turistica della metropoli e l’industria cinematografica.  Come ben noto, Los Angeles continua da quasi un secolo a suggestionare l’immaginario collettivo in quanto mecca del cinema e patria di Hollywood, l’industria che ha creato il sogno americano. Tuttavia LA, oggi, è anche una delle prime dieci città mondiali. Rappresenta l’esempio di come l’industria creativa (e il cinema è creatività per definizione sia riuscita a realizzare un sistema economico e d’innovazione tecnologica che funziona come polo di attrazione sia per tutti coloro che intendono sviluppare nuove attività, non possibili in altre parti del mondo, sia per visitatori e turisti attirati da un insieme di fattori emozionali legati alla notorietà dei luoghi del sistema cinematografico e dello spettacolo. Sulla base dell’analisi della letteratura e facendo seguito a esperienze di studio sul campo, il contributo vuole evidenziare la stretta connessione costruita nel corso di più di un secolo tra Hollywood, il luogo, e Hollywood, l’industria, per dimostrare come il luogo di produzione rappresenti una componente unica del prodotto finale, un’autenticazione di qualità soggettive e simboliche in grado di amplificare il valore economico intrinseco e di provocare un’attrazione crescente di attività e persone verso l’area metropolitana di Los Angeles.   This paper discusses Los Angeles as the best-known celluloid city in the world, and focuses particularly on the close relationship between its attractiveness for tourists and the film industry. For almost a century Los Angeles has exerted influence over the collective imagination as the mecca of cinema and home of Hollywood, the industry that created the American dream

  8. Initial Study

    DEFF Research Database (Denmark)

    Torp, Kristian

    2009-01-01

    increased. In the initial study presented here, the time it takes to pass an intersection is studied in details. Two major signal-controlled four-way intersections in the center of the city Aalborg are studied in details to estimate the congestion levels in these intersections, based on the time it takes to...

  9. Perceptions of neighborhood safety and asthma among children and adolescents in Los Angeles: a multilevel analysis.

    Directory of Open Access Journals (Sweden)

    Marlene Camacho-Rivera

    Full Text Available BACKGROUND: Research examining the impact of neighborhoods on asthma has shown an increased interest in the role of the psychosocial environment. We examined the associations between various measures of neighborhood safety, individual and family characteristics, and asthma outcomes among children in Los Angeles. METHODS: Multilevel logistic regression models were used to analyze data on 3,114 children across 65 neighborhoods from Wave 1 of the Los Angeles Family and Neighborhood Survey (2000 to 2002. Primary caregivers reported asthma outcome and all individual covariates; home environmental characteristics were observed by the interviewer. RESULTS: In fully adjusted models, parents who reported their neighborhood fairly safe or somewhat dangerous had lower odds of reported lifetime asthma compared to those who reported their neighborhood completely safe (OR 0.71; 95% CI 0.52-0.96 and OR 0.60; 95% CI 0.42-0.88 respectively. Conversely, parents who reported they could not trust their neighbors to keep their children safe had a nearly 40% increase in lifetime asthma compared to those who reported they could trust their neighbors to keep their children safe (OR 1.39; 95% CI 1.07-1.81. CONCLUSIONS: The study demonstrates a complex pattern between various measures of neighborhood safety and asthma and suggests that these relationships may operate differently in Los Angeles. As an increasing proportion of children are growing up in newer Western and Southwestern cities, which have different physical layouts and residential segregation patterns compared to Northeast and Midwestern cities, future studies should continue to examine neighborhood psychosocial stressors and asthma in diverse contexts.

  10. Measurements and predictors of on-road ultrafine particle concentrations and associated pollutants in Los Angeles

    International Nuclear Information System (INIS)

    Motor vehicles are the dominant source of oxides of nitrogen (NOx), particulate matter(PM), and certain air toxics (e.g., benzene, 1,3-butadiene) in urban areas. On roadways, motor vehicle-related pollutant concentrations are typically many times higher than ambient concentrations. Due to high air exchange rates typical of moving vehicles, this makes time spent in vehicles on roadways a major source of exposure. This paper presents on-road measurements for Los Angeles freeways and arterial roads taken from a zero-emission electric vehicle outfitted with real-time instruments. The objective was to characterize air pollutant concentrations on roadways and identify the factors associated with the highest concentrations. Our analysis demonstrated that on freeways, concentrations of ultrafine particles (UFPs), black carbon, nitric oxide, and PM-bound polycyclic aromatic hydrocarbons (PM-PAH) are generated primarily by diesel-powered vehicles, despite the relatively low fraction (∼6%) of diesel-powered vehicles on Los Angeles freeways. However, UFP concentrations on arterial roads appeared to be driven primarily by proximity to gasoline-powered vehicles undergoing hard accelerations. Concentrations were roughly one-third of those on freeways. By using a multiple regression model for the freeway measurements, we were able to explain 60-70% of the variability in concentrations of UFP, black carbon, nitric oxide, and PM-PAH using measures of diesel truck density and hour of day (as an indicator of wind speed). Freeway concentrations of these pollutants were also well correlated wth readily available annual average daily truck counts, potentially allowing improved population exposure estimates for epidemiology studies. Based on these roadway measurements and average driving time, it appears that 33-45% of total UFP exposure for Los Angeles residents occurs due to time spent traveling in vehicles. (author)

  11. Detecting seasonal variations in seismic velocities within Los Angeles basin from correlations of ambient seismic noise.

    OpenAIRE

    Ueli, Meier; Brenguier, Florent; M. Shapiro, N.

    2010-01-01

    International audience We analyze 3 years of continuous seismic records from broadband stations of the Caltech Regional Seismic Network (CI) in vicinity of the Los Angeles basin. Using correlations of ambient seismic noise, relative velocity variations in the order of 0.1 % can be measured between all inter-station pairs. It is the first time that such an extensive study between 861 inter-station pairs over such a large area has been carried out. We perform these measurements using the 'st...

  12. The Legal Needs of Transgender Women Living with HIV: Evaluating Access to Justice in Los Angeles

    OpenAIRE

    Miyashita, Ayako; Hasenbush, Amira; Sears, Brad

    2015-01-01

    This report summarizes findings of the Legal Assessment of Needs Study (“LeAN Study”) – an online survey with 387 respondents who identified as people living with HIV/AIDS – for transgender women living with HIV in Los Angeles County. We describe respondents’ legal needs, respondents’ experiences getting assistance for identified legal needs from both legal and non-legal sources, and barriers respondents faced in accessing assistance from both legal and non-legal sources. We describe differen...

  13. Inter-community variability in total particle number concentrations in the eastern Los Angeles air basin

    Directory of Open Access Journals (Sweden)

    N. Hudda

    2010-06-01

    Full Text Available Ultrafine Particles (UFP can display sharp gradients in their number concentrations in urban environment due to their transient nature and rapid atmospheric processing. The ability of using air pollution data generated at a central monitoring station to assess exposure relies on our understanding of the spatial variability of a specific pollutant associated with a region. High spatial variation in the concentrations of air pollutants has been reported at scales of 10s of km for areas affected by primary emissions. Spatial variability in particle number concentrations (PNC and size distributions needs to be investigated, as the representativeness of a monitoring station in a region is premised on the assumption of homogeneity in both of these metrics. This study was conducted at seven sites, one in downtown Los Angeles and six located about 40–115 km downwind in the receptor areas of Los Angeles air basin. PNC and size distribution were measured using Condensation Particle Counters (CPC and Scanning Mobility Particle Sizer (SMPS. The seasonal and diurnal variations of PNC implied that PNC might vary significantly with meteorological conditions, even though the general patterns at the sites may remain generally similar across the year due to consistency of sources around them. Regionally transported particulate matter (PM from upwind urban areas of Los Angeles lowered spatial variation by acting as a "homogenizing" factor during favorable meteorological conditions. Spatial variability also increased during hours of the day during which the effects of local sources predominated. The spatial variability associated with PNC (quantified using Coefficients of Divergence, CODs, averaged 0.3, which was generally lower than that based on specific size ranges. Results showed an inverse relationship of COD with particles size, with fairly uniform values in the particle range above 40–50 nm, which is associated with regional transport. Our results

  14. Development of risk monitor RiskAngel for risk-informed applications in nuclear power plants

    International Nuclear Information System (INIS)

    This paper presents the development of risk monitor software RiskAngel at FDS Team and its applications as a plant specific risk monitor, which supports risk-informed configuration risk management for the two CANDU 6 units at the Third Qinshan Nuclear Power Plant in China. It also describes the regulatory prospective on risk-informed PSA applications and the use of risk monitor at operating nuclear power plants, high level technical and functional requirements for the development of CANDU specific risk monitor software, and future development trends. (author)

  15. How a tax stole a market overnight: Bunkers in Los Angeles, California, U.S.A

    International Nuclear Information System (INIS)

    At the bottom of the barrel is bunker fuel, a lesser value to refineries but quite important to shippers, port authorities, and associated sectors. Here is a brief story about how a California tax sent ships to ports of call other than Los Angeles and Long Beach - and slashed bunker sales and jobs. The government is reconsidering its actions, but some damage may be irreversible. This issue also presents the following: (1) the ED Refining Netback Data Series for the US Gulf and West Coasts, Rotterdam and Singapore as of July 24, 1992; and (2) the ED Fuel Price/Tax Series for countries of the Eastern Hemisphere, July 1992 Edition

  16. Club Drug Use in Los Angeles among Young Men Who Have Sex with Men

    OpenAIRE

    Kipke, Michele D.; Weiss, George; Ramirez, Marizen; Dorey, Fred; Ritt-Olson, Anamara; Iverson, Ellen; Ford, Wesley

    2007-01-01

    Little is known about young men who have sex with men's use of club drugs and the risk factors associated with such use. A structured survey was administered in 2005 to 496 young men who were 18-22 years old (40% were 18-19 years old); self-identified as with a same-sex sexuality (83%), bisexual (16%), and/or had had sex with a man (97%); Caucasian (35%), African American (24%), and Latino of Mexican descent (40%). Subjects were recruited from gay-identified venues in Los Angeles, California ...

  17. Have Your City and Eat It Too: Los Angeles and the Urban Food Renaissance

    OpenAIRE

    Tarr, Alexander Robert

    2015-01-01

    Time and time again, the residents of Los Angeles have used the promises of the “garden city” and urban agriculture to imagine a way out of the persistent problems of urban life. In the contemporary moment, alternative food system activists are again working to create a cultural movement committed to “slow,” local and small-scale community-based urban food systems – which, paradoxically, they are organizing through sophisticated digital tools and global social media. This study argues that, ...

  18. Persuasive Language in Tourism Webpages: Official Webpages of Los Angeles, Seattle and Washington

    OpenAIRE

    Sastre Ferreira, Silvia Nerea

    2014-01-01

    El material de promoción turística ha evolucionado de las guías turísticas en papel al formato digital aprovechando las ventajas que ofrece Internet. La aparición de las páginas web oficiales de turismo ha cambiado el estilo de la escritura cuyo objetivo es persuadir a los turistas. De esta manera, este trabajo es un estudio basado en un corpus de las estrategias persuasivas utilizadas más frecuentemente por las páginas web oficiales de turismo de Los Angeles, Seattle y Washington. Los result...

  19. A model study of the impact of emission control strategies on Los Angeles air quality

    Science.gov (United States)

    Hameed, S.; Stewart, R. W.; Lebedeff, S. A.

    1976-01-01

    A generalized cell model is developed for the calculation of city-wide averages of photochemical smog components in Los Angeles. This model takes into account the effects of variations with time and within the city of the source strengths, the wind field, and the mixing depth. The effect of the influx of background pollution from outside the modeled volume is also included. Several control strategies for reducing automobile emissions are then introduced into the model, and their impact on predicted pollutant levels, particularly those of O3, are investigated.

  20. The Assassination Of The Pope In Dan Brown’s Novel “Angels And Demons”

    OpenAIRE

    Harany, Johana Laura

    2015-01-01

    The title of this paper is "The Assassination of Pope in Dan Brown's novel “Angels and Demons”. This paper discusses about the assassination. The assassination is a very cruel deed which is against the law. It is especially if it happens to the pope. A pope is regarded as a holy man and the vicar of Christ. The novel gives emphasis to the assassination which involves the illuminati— a secret brotherhood presumed extinct for nearly four hundred years, reborn to continue their deadly vendetta ...

  1. Health Impact Assessment of the Proposed Los Angeles Wage Theft Ordinance

    OpenAIRE

    Santiago, Fabiola; Staton, Brooke; Garcia, Natalia; Marucut, Jill; Koonse, Tia

    2014-01-01

    Wage theft is the non-payment or underpayment of wages and other benefits to which workers are legally entitled to. Workers in low-wage industries, immigrant workers, women, and people of color are disproportionately affected by wage theft. On average, victims of wage theft lose $2,070 annually from total annual earnings of $16,536. In a given week, an estimated 655,000 low-wage workers in Los Angeles County experience at least one pay-based violation. The majority of these violations take pl...

  2. Love-styles among Latino community college students in Los Angeles.

    Science.gov (United States)

    Leon, J J; Parra, F; Cheng, T; Flores, R E

    1995-10-01

    145 Latino community college students enrolled in Chicano Studies classes in Los Angeles, California were administered a love-attitudes scale. Analysis showed that the mean scores and endorsement patterns were similar to those in earlier research on white-Latino and white-non-Latino students in the United States. Significant gender differences were found. Latino men scored more Ludic and Agapic than women. Researchers might examine the love-styles and ethnic identity in and out of marriage among Latinos, whites, and Asians in southern California. PMID:8559877

  3. Public opinion on nutrition-related policies to combat child obesity, Los Angeles County, 2011.

    Science.gov (United States)

    Simon, Paul A; Chiang, Choiyuk; Lightstone, Amy S; Shih, Margaret

    2014-01-01

    We assessed public opinion on nutrition-related policies to address child obesity: a soda tax, restrictions on advertising unhealthy foods and beverages to children, and restrictions on siting fast food restaurants and convenience stores near schools. We analyzed data from 998 adults (aged ≥18 years) in the 2011 Los Angeles County Health Survey. Support was highest for advertising restrictions (74%), intermediate for a soda tax (60%), and lowest for siting restrictions on fast food restaurants and convenience stores (44% and 37%, respectively). Support for food and beverage advertising restrictions and soda taxation is promising for future policy efforts to address child obesity. PMID:24901796

  4. Racial Disparities in Use of Chiropractic Services by Medicare Beneficiaries Aged 65 to 99 in Los Angeles County, California.

    Science.gov (United States)

    Whedon, James M; Kimura, Melissa N; Phillips, Reed B

    2016-04-01

    Racial and ethnic disparities in utilization of chiropractic services have been described at the state level, but little is known about such local disparities. We analyzed Medicare data for the year 2008 to evaluate by ZIP code for utilization of chiropractic services among older adults in Los Angeles County, California. We evaluated for availability and use of chiropractic services by racial/ethnic category, quantified geographic variations by coefficient of variation, and mapped utilization by selected racial/ethnic categories. Among 7502 beneficiaries who used chiropractic services, 72% were white, 12% Asian, 1% black, 1% Hispanic, and 14% other/unknown. Variation in the number of beneficiaries per ZIP code who used chiropractic services was highest among Hispanics, blacks, and Asians. We found evidence of racial disparities in use of chiropractic services at the local level in Los Angeles County. Older blacks and Hispanics in Los Angeles County may be underserved with regard to chiropractic care. PMID:26350244

  5. Effects of Feeding Frequency on Growth Performance and Survival Rate of Angel Fish, Pterophyllum scalare (Perciformes: Cichlidae)

    OpenAIRE

    Milad Kasiri; Amin Farahi; Mohammad Sudagar

    2011-01-01

    The freshwater angel fish (Pterophyllum scalare Schultze, 1823) is South American cichlid become very popular among aquarists. There is little information on their culture and aquarium husbandry. In this study growth performance and survival rate of angelfish subjected to different feeding frequencies were evaluated. Four groups of angel fish juveniles (0.87 ± 0.01 g; 3.98 ± 0.08 mm) were fed either four meals per day (F1), two meals per day (F2), one meal per day (F3) and every other day (F4...

  6. Los Angeles Test and Polished Stone Value of ophite in Cantabria: a petrophysical interpretation

    Directory of Open Access Journals (Sweden)

    Fernández Maroto, G.

    2004-09-01

    Full Text Available Crushed aggregate obtained from certain ophite outcrops in Cantabria was tested with the Los Angeles and polished stone value (PSV procedures. Linear regression analysis was used to identify the pétrographie parameters that account for aggregate performance in these two tests. The most abundant and common minerals in the ophite were observed to condition such performance in the Los Angeles method. In PSV behaviour was determined by the existence or otherwise of a rough micro texture -the result of the existence of minerals with different hardness values-, which increases aggregate resistance to polishing action.

    A partir de la caracterización petrográfica de las ofitas de algunos afloramientos de Cantabria, se han identificado los parámetros petrográficos que explican, a través de modelos lineales de regresión, el comportamiento del árido de machaqueo obtenido de estas rocas frente a los ensayos que aumenta la resistencia al pulimento del árido.

  7. Measles outbreak associated with an arriving refugee - Los Angeles County, California, August-September 2011.

    Science.gov (United States)

    2012-06-01

    Measles is a highly communicable, acute viral illness with potential for severe complications, including death. Although endemic measles was eliminated in the United States in 2000 as a result of widespread vaccination, sporadic measles outbreaks still occur, largely associated with international travel from measles-endemic countries and pockets of unvaccinated persons. On August 26, 2011, the Los Angeles County Department of Public Health (LACDPH) was notified of suspected measles in a refugee from Burma who had arrived in Los Angeles, California, on August 24, after a flight from Kuala Lumpur, Malaysia. Passengers on the flight included 31 other refugees who then traveled to seven other states, widening the measles investigation and response activities. In California alone, 50 staff members from LACDPH and the California Department of Public Health (CDPH) interviewed and reinterviewed 298 contacts. Measles was diagnosed in three contacts of the index patient (patient A). The three contacts with measles were two passengers on the same flight as patient A and a customs worker; no secondary cases were identified. Delayed diagnosis of measles in patient A and delayed notification of health officials precluded use of measles-mumps-rubella (MMR) vaccine as an outbreak intervention. This outbreak emphasizes the importance of maintaining a high level of vaccination coverage and continued high vigilance for measles in the United States, particularly among incoming international travelers; clinicians should immediately isolate persons with suspected measles and promptly report them to health authorities. PMID:22647743

  8. Aeromagnetic Map with Geology of the Los Angeles 30 x 60 Minute Quadrangle, Southern California

    Science.gov (United States)

    Langenheim, V.E.; Hildenbrand, T.G.; Jachens, R.C.; Campbell, R.H.; Yerkes, R.F.

    2006-01-01

    Introduction: An important objective of geologic mapping is to project surficial structures and stratigraphy into the subsurface. Geophysical data and analysis are useful tools for achieving this objective. This aeromagnetic anomaly map provides a three-dimensional perspective to the geologic mapping of the Los Angeles 30 by 60 minute quadrangle. Aeromagnetic maps show the distribution of magnetic rocks, primarily those containing magnetite (Blakely, 1995). In the Los Angeles quadrangle, the magnetic sources are Tertiary and Mesozoic igneous rocks and Precambrian crystalline rocks. Aeromagnetic anomalies mark abrupt spatial contrasts in magnetization that can be attributed to lithologic boundaries, perhaps caused by faulting of these rocks or by intrusive contacts. This aeromagnetic map overlain on geology, with information from wells and other geophysical data, provides constraints on the subsurface geology by allowing us to trace faults beneath surficial cover and estimate fault dip and offset. This map supersedes Langenheim and Jachens (1997) because of its digital form and the added value of overlaying the magnetic data on a geologic base. The geologic base for this map is from Yerkes and Campbell (2005); some of their subunits have been merged into one on this map.

  9. Factors Affecting the Incidence of Angel Wing in White Roman Geese: Stocking Density and Genetic Selection.

    Science.gov (United States)

    Lin, M J; Chang, S C; Lin, T Y; Cheng, Y S; Lee, Y P; Fan, Y K

    2016-06-01

    The present study investigated stocking density and genetic lines, factors that may alter the severity and incidence of angel wing (AW), in White Roman geese. Geese (n = 384) from two genetically selected lines (normal- winged line, NL, and angel-winged line, AL, respectively) and one commercial line (CL) were raised in four pens. Following common commercial practice, low-stocking-density (LD), medium-stocking-density, and high-stocking-density treatments were respectively administered to 24, 32, and 40 geese per pen at 0 to 3 weeks (1.92 m(2)/pen) and 4 to 6 weeks (13.2 m(2)/pen) of age and to 24, 30, and 36 geese at 7 to 14 weeks (20.0 m(2)/pen) of age. The results revealed that stocking density mainly affected body weight gain in geese younger than 4 weeks, and that geese subjected to LD had a high body weight at 2 weeks of age. However, the effect of stocking density on the severity score of AW (SSAW) and incidence of AW (IAW) did not differ significantly among the treatments. Differences were observed among the genetic stocks; that is, SSAW and IAW were significantly higher in AL than in NL and CL. Genetic selection generally aggravates AW, complicating its elimination. To effectively reduce IAW, stocking density, a suspected causal factor, should be lower than that presently applied commercially. PMID:26954185

  10. Factors Affecting the Incidence of Angel Wing in White Roman Geese: Stocking Density and Genetic Selection

    Science.gov (United States)

    Lin, M. J.; Chang, S. C.; Lin, T. Y.; Cheng, Y. S.; Lee, Y. P.; Fan, Y. K.

    2016-01-01

    The present study investigated stocking density and genetic lines, factors that may alter the severity and incidence of angel wing (AW), in White Roman geese. Geese (n = 384) from two genetically selected lines (normal- winged line, NL, and angel-winged line, AL, respectively) and one commercial line (CL) were raised in four pens. Following common commercial practice, low-stocking-density (LD), medium-stocking-density, and high-stocking-density treatments were respectively administered to 24, 32, and 40 geese per pen at 0 to 3 weeks (1.92 m2/pen) and 4 to 6 weeks (13.2 m2/pen) of age and to 24, 30, and 36 geese at 7 to 14 weeks (20.0 m2/pen) of age. The results revealed that stocking density mainly affected body weight gain in geese younger than 4 weeks, and that geese subjected to LD had a high body weight at 2 weeks of age. However, the effect of stocking density on the severity score of AW (SSAW) and incidence of AW (IAW) did not differ significantly among the treatments. Differences were observed among the genetic stocks; that is, SSAW and IAW were significantly higher in AL than in NL and CL. Genetic selection generally aggravates AW, complicating its elimination. To effectively reduce IAW, stocking density, a suspected causal factor, should be lower than that presently applied commercially. PMID:26954185

  11. Surveillance of listeriosis in Los Angeles County, 1985-1986. A first year's report.

    Science.gov (United States)

    Mascola, L; Sorvillo, F; Neal, J; Iwakoshi, K; Weaver, R

    1989-07-01

    After a large food-borne outbreak of listeriosis in Los Angeles County, California, in 1985, the California State Department of Health Services instituted mandatory reporting of Listeria monocytogenes by clinical laboratories. From September 1, 1985, through August 31, 1986, 94 cases of listeriosis were reported in Los Angeles County for an annual crude incidence rate of 12 cases per million persons. Of the 94 cases, 37 (39%) were in neonates and/or their mothers and 57 (61%) were nonperinatal. The overall case fatality rate was 31%, with a perinatal case fatality of 16% (6 fetal and 23 nonperinatal); this compares with an epidemic perinatal case fatality rate of 32%. No significant differences were observed in age-adjusted, race-specific incidence rates among nonperinatal cases or race-specific incidence rates among perinatal cases. All but 2 of the nonperinatal patients had a known predisposing risk factor for the development of listeriosis, the most common of which was a prior history of steroid therapy. A clustering of cases was not identified. No common food sources were apparent. Patients presenting as perinatal cases were more likely to have ingested Mexican-style cheese, ice cream, and yogurt than those presenting as nonperinatal cases. Improved case ascertainment through mandatory reporting and laboratory-based surveillance will establish meaningful baseline levels of listeriosis. PMID:2742430

  12. Rill Initiation

    OpenAIRE

    Ottosen, Thor-Bjørn

    2008-01-01

    This project is about rill erosion. The aim is to test whether rill initiation can be predicted from the shear strength of the soil as measured with a torvane on saturated soil. This approach was set forward by Rauws and Govers 1988. Rainfall simulation experiments are conducted at a plot size 2x1m, performed in May on the Marbjerg experimental field. The results are evaluated using a chain set to measure alterations of the surface roughness as a result of the erosion, visual evaluation of ph...

  13. Surveillance Angels

    OpenAIRE

    Rothkrantz, L.J.M.

    2014-01-01

    The use of sensor networks has been proposed for military surveillance and environmental monitoring applications. Those systems are composed of a heterogeneous set of sensors to observe the environment. In centralised systems the observed data will be conveyed to the control room to process the data. Human operators are supposed to give a semantic interpretation of the observed data. They are searching for suspicious or unwanted behaviour. The increase of surveillance sensors in the military ...

  14. The City and the World of Work: A Critical Examination of Life in Los Angeles and Urban America in the Mid-Sixties. Proceedings of the Annual Research Conference (9th, Los Angeles, March 14-15, 1966).

    Science.gov (United States)

    California Univ., Los Angeles. Inst. of Industrial Relations.

    Conference papers examining recent trends affecting the development of urban life in America are presented. "How People Look at Cities Where They Live and Work," by Anselm L. Strauss, presents sample work and life styles and their effects on perceptions of cities. "Los Angeles as a Changing Community," by Fred E. Chase, discusses problems and…

  15. Los Angeles Free-Net: an experiment in interactive telecommunication between lay members of the Los Angeles community and health care experts.

    Science.gov (United States)

    Bluming, A; Mittelman, P S

    1996-04-01

    The Los Angeles Free-Net, an interactive community information resource, was established in part to help community members become more effective consumers of health care services. By providing timely, expert answers to anonymously asked medical questions at no charge, we hope to decrease unnecessary physician-patient encounters, encourage effective preventive-health measures, and improve the overall results of health care in our community. Although it is too early to assess health care benefits from this system, the following observations may help guide the development of similar systems around the nation: (1) A small annual registration fee generates both moral and financial public support. (2) Demographic information from registered users can help direct attempts at enfranchising all members of the community. (3) Toll-free access, free public-instruction sessions, moderated forums, extensive volunteer help, and encryption security are encouraged, while Internet censorship is difficult and counterproductive. (4) Access to Internet resources is important, but the strength of a community system lies primarily in the sharing of expertise and resources among members of the community. (5) A critical mass of available physicians to answer questions must be matched with a critical level of question input for this type of interactive medical information resource to function in a time-sensitive fashion. PMID:8826627

  16. Mga Lente sa Likod ng Lente: Isang Panimulang Pag-aaral ng Ilang Litratong Kuha ni Xander Angeles

    Directory of Open Access Journals (Sweden)

    Moreal Nagarit Camba

    2011-12-01

    Full Text Available Ang pangalang Xander Angeles ay kilala bilang isa sa mga in-demand napangalan sa mundo ng fashion at advertisement sa Pilipinas. Kakabit ngpangalang ito ang samut-saring lokal at internasyunal na parangal; idagdag pa rito ang isang advertising company, isang modelling agency, at isang fashion and photography school.

  17. The Relationship between Parenting, Acculturation, and Adolescent Academics in Mexican-Origin Immigrant Families in Los Angeles.

    Science.gov (United States)

    Plunkett, Scott W.; Bamaca-Gomez, Mayra Y.

    2003-01-01

    A study examining Mexican-born parents' influence on their children's academic outcomes surveyed 273 Mexican American students attending three Los Angeles high schools. Girls reported higher academic motivation and educational aspirations than boys. Parent behaviors of helping, monitoring, and supporting positively affected academic motivation.…

  18. Assessment of undiscovered continuous oil and gas resources in the Monterey Formation, Los Angeles Basin Province, California, 2015

    Science.gov (United States)

    Tennyson, Marilyn E.; Charpentier, Ronald R.; Klett, Timothy R.; Brownfield, Michael E.; Pitman, Janet K.; Gaswirth, Stephanie B.; Hawkins, Sarah J.; Le, Phuong A.; Lillis, Paul G.; Marra, Kristen R.; Mercier, Tracey J.; Leathers-Miller, Heidi M.; Schenk, Christopher J.

    2016-01-01

    Using a geology-based assessment methodology, the U.S. Geological Survey assessed technically recoverable mean resources of 13 million barrels of oil, 22 billion cubic feet of gas, and 1 million barrels of natural gas liquids in the Monterey Formation of the Los Angeles Basin Province, California.

  19. 77 FR 11571 - Notice of Intent To Repatriate Cultural Items: Fowler Museum at UCLA, Los Angeles, CA

    Science.gov (United States)

    2012-02-27

    ..., institution or Federal agency that has control of the Native American cultural items. The National Park... National Park Service Notice of Intent To Repatriate Cultural Items: Fowler Museum at UCLA, Los Angeles, CA... consultation with the appropriate Indian tribes, has determined that the cultural items meet the definition...

  20. Hate Crime in the 1980's: A Decade of Bigotry. A Report to the Los Angeles County Board of Supervisors.

    Science.gov (United States)

    Hatcher, Bunny Nightwalker

    A report on hate-crimes in the 1980s in Los Angeles County (California) found that these acts had increased in number. Hate crimes are defined as criminal acts directed at an individual, institution, or business expressly because of race, ethnicity, religion, or sexual orientation. Over the period 1980 to 1989, religiously motivated hate crimes…

  1. Body Image of Dancers in Los Angeles: The Cult of Slenderness and Media Influence among Dance Students

    Science.gov (United States)

    Heiland, Teresa L.; Murray, Darrin S.; Edley, Paige P.

    2008-01-01

    Body image and self-esteem are examined through personal stories among Los Angeles college dancers who grew up in the Hollywood culture of the cult of slenderness. The study incorporates a body image survey, eating disorder screen, and an interview process capturing dancers' lived experiences with daily pressures. Dancers reveal their experiences…

  2. Making Cultura Count inside and out of the Classroom: Public Art & Critical Pedagogy in South Central Los Angeles

    Science.gov (United States)

    Garcia, Luis-Genaro

    2012-01-01

    In this article, artist, educator, and activist Luis-Genaro Garcia describes the development and impact of the "May Day service learning project" on his advanced painting class in a high school in South Los Angeles. The project emerged from students' interests: their ideas, concerns for their community, socio-political consciousness, and…

  3. 76 FR 43721 - Notice of Intent To Repatriate Cultural Items: Fowler Museum at UCLA, Los Angeles, CA

    Science.gov (United States)

    2011-07-21

    ... consultation with the appropriate Indian tribes, has determined that the cultural items meet the definition of... Fowler Museum at UCLA, Los Angeles, CA, that meet the definition of unassociated funerary objects under... culture. There are burial records that describe the excavation of each burial and include field...

  4. Energy transition or incremental change? Green policy agendas and the adaptability of the urban energy regime in Los Angeles

    International Nuclear Information System (INIS)

    Drawing on recent research in urban policy studies and social studies of technology, this paper examines the capability of urban energy regimes in adapting to environmental policy pressures. Focusing on the case of the City of Los Angeles, we critically analyze the transformative capacity of the city's recent energy and climate policies and the innovation patterns of its urban infrastructure regime. This case study suggests that despite considerable success in switching from coal to renewable energies, the patterns of sociotechnical change in Los Angeles still tend to supplement and sustain the existing regime. Sociotechnical change in Los Angeles tends to unfold incrementally through adjustments within the established patterns of the existing regime. - Highlights: • Theory-guided case study on the transition of the urban energy regime in Los Angeles. • Evaluation of the transformative capacity of environmental policies. • Assessment of the adaptability and innovation patterns of urban infrastructure regimes. • The policy changes have sustained the existing regime and unfold incrementally

  5. A Health Probe in College Students Living in Los Angeles and in Taiwan: Dietary Pattern, Physical Activity and Energy Balance

    Science.gov (United States)

    Wang, Li Hui; Yang, Hsin Ling; Chen, Yin Chang; Davis, Rebecca; Schwartz, Miriam E.; Tam, Chick F.

    2008-01-01

    The objective was to examine differences of dietary pattern, physical activity and energy balance in 240 college students with 137 of them enrolled in California State University, Los Angeles (LA) and the other 93 enrolled in China Medical University in Taichung, Taiwan (TW). A three-day dietary record and a 24-hour physical activity journal were…

  6. Toxic School Sites in Los Angeles: Weaknesses in the Site Acquisition Process. Special Report of the Joint Legislative Audit Committee.

    Science.gov (United States)

    California State Legislature, Sacramento. Joint Legislative Audit Committee.

    A special report of the California Legislature's Joint Legislative Audit Committee addresses the school site acquisition process to attempt to discern how the system has allowed a minimum of nine Los Angeles public schools to be built on toxic lands. The report examines two such sites, the Jefferson Middle School (JMS) and the combined elementary…

  7. Framing Peace as Violence: Television News Depictions of the 2007 Police Attack on Immigrant Rights Marchers in Los Angeles

    Science.gov (United States)

    Santa Ana, Otto; Lopez, Layza; Munguia, Edgar

    2010-01-01

    This study examines two successive days of U.S. television news coverage of the May 1, 2007, immigration rights rally in Los Angeles. As thousands of demonstrators appealed peacefully for comprehensive immigration policy reform, they were assailed by 450 police officers firing munitions and using truncheons. We evaluated fifty-one television news…

  8. Perceived and actual environmental benefits of the Los Angeles urban forest

    Science.gov (United States)

    Pataki, D. E.; McCarthy, H. R.

    2011-12-01

    There has been a widespread movement to plant more trees and increase canopy cover in cities throughout the United States, in order to enhance ecosystem services provided by urban forests. The city of Los Angeles has been engaged in a widespread tree planting program with the goal of increasing tree cover, particularly in low income neighborhoods. However, the Los Angeles urban forest is almost entirely non-native, located predominately in former semi-arid shrublands and grasslands. We used multiple approaches to evaluate environmental costs and benefits of urban trees in Los Angeles, both as they are perceived by local residents, as well as actual physical impacts of urban tree processes on the environment. We conducted an internet survey of attitudes and preferences for specific tree functional types, ecosystem services, and potential costs. We also directly measured urban forest structure and function including species and functional biodiversity, transpiration, basal area increments, hydraulic architecture, and leaf gas exchange. We translated these processes into categories of ecosystem services and costs such as water use, latent heat fluxes, water use efficiency, growth rates, sensitivity to drought stress, and aesthetic traits (flowering, fruiting, etc.). We found that provision of shade by urban trees is highly valued by local residents, and in fact, the urban forest has a significant impact on surface temperatures. Aesthetics benefits are also commonly cited as desirable traits. Although aesthetic and other cultural ecosystem services are difficult to quantify, we found spatial patterns in aesthetic traits influenced by neighborhood socioeconomic variables. Local residents seemed less concerned about the water use of irrigated urban trees, but we found significant rates of transpiration in urban trees and forest plots depending on species that may be important in the local hydrologic budget, which is increasingly constrained by water shortages. There was

  9. Lagoon microbialites on Isla Angel de la Guarda and associated peninsular shores, Gulf of California (Mexico)

    Science.gov (United States)

    Johnson, Markes E.; Ledesma-Vázquez, Jorge; Backus, David H.; González, Maria R.

    2012-07-01

    Examples of two closed lagoons with extensive growth of Recent microbialites showing variable surface morphology and internal structure are found on Isla Angel de la Guarda in the Gulf of California. Comparable lagoonal microbialites also occur ashore from Ensenada El Quemado on the adjacent peninsular mainland of Baja California. The perimeters of all three lagoons feature crusted structures indicative of thrombolites with a knobby surface morphology 2 cm to 3 cm in relief and internal clotting without any sign of laminations. Outward from this zone, thrombolitic construction thins to merge with a white calcified crust below which a soft substratum of dark organic material 4 cm to 6 cm in thickness is concealed. The substratum is laminated and heavily mucilaginous, as observed along the edges of extensive shrinkage cracks in the overlying crust. The thrombolitic crust is anchored to the shore, while the thinner crust and associated stromatolitic mats float on the surface of the lagoons. Laboratory cultures of the dark organic material yielded the solitary cyanobacterium Chroococcidiopsis as the predominant taxon interspersed with filamentous forms. In decreasing order of abundance, other morphotypes present include Phormidium, Oscillatoria, Geitlerinema, Chroococus, and probably Spirulina. The larger of the two island lagoons follows an east-west azimuth and covers 0.225 km2, while the smaller lagoon has a roughly north-south axis and covers only 0.023 km2. The salinity of water in the smaller lagoon was measured as148 ppt. Pliocene strata along the edge of the smaller modern lagoon include siltstone bearing calcified platelets suggestive of a microbial origin. Dry lagoons abandoned during the later Quaternary occur inland at higher elevations on the island, but retain no fossils except for sporadic white crusts cemented on cobbles around distinct margins. Raised Quaternary lagoons parallel to the big lagoon on Isla Angel de la Guarda are partly obscured by flood

  10. Quantifying sources of methane and light alkanes in the Los Angeles Basin, California

    Science.gov (United States)

    Peischl, Jeff; Ryerson, Thomas; Atlas, Elliot; Blake, Donald; Brioude, Jerome; Daube, Bruce; de Gouw, Joost; Frost, Gregory; Gentner, Drew; Gilman, Jessica; Goldstein, Allen; Harley, Robert; Holloway, John; Kuster, William; Santoni, Gregory; Trainer, Michael; Wofsy, Steven; Parrish, David

    2013-04-01

    We use ambient measurements to apportion the relative contributions of different source sectors to the methane (CH4) emissions budget of a U.S. megacity. This approach uses ambient measurements of methane and C2-C5 alkanes (ethane through pentanes) and includes source composition information to distinguish between methane emitted from landfills and feedlots, wastewater treatment plants, tailpipe emissions, leaks of dry natural gas in pipelines and/or local seeps, and leaks of locally produced (unprocessed) natural gas. Source composition information can be taken from existing tabulations or developed by direct sampling of emissions using a mobile platform. By including C2-C5 alkane information, a linear combination of these source signatures can be found to match the observed atmospheric enhancement ratios to determine relative emissions strengths. We apply this technique to apportion CH4 emissions in Los Angeles, CA (L.A.) using data from the CalNex field project in 2010. Our analysis of L.A. atmospheric data shows the two largest CH4 sources in the city are emissions of gas from pipelines and/or from geologic seeps (47%), and emissions from landfills (40%). Local oil and gas production is a relatively minor source of CH4, contributing 8% of total CH4 emissions in L.A. Absolute CH4 emissions rates are derived by multiplying the observed CH4/CO enhancement ratio by State of California inventory values for carbon monoxide (CO) emissions in Los Angeles. Apportioning this total suggests that emissions from the combined natural and anthropogenic gas sources account for the differences between top-down and bottom-up CH4 estimates previously published for Los Angeles. Further, total CH4 emission attributed in our analysis to local gas extraction represents 17% of local production. While a derived leak rate of 17% of local production may seem unrealistically high, it is qualitatively consistent with the 12% reported in a recent state inventory survey of the L.A. oil and

  11. Openness initiative

    Energy Technology Data Exchange (ETDEWEB)

    Duncan, S.S. [Los Alamos National Lab., NM (United States)

    1995-12-31

    Although antinuclear campaigns seem to be effective, public communication and education efforts on low-level radioactive waste have mixed results. Attempts at public information programs on low-level radioactive waste still focus on influencing public opinion. A question then is: {open_quotes}Is it preferable to have a program focus on public education that will empower individuals to make informed decisions rather than trying to influence them in their decisions?{close_quotes} To address this question, a case study with both quantitative and qualitative data will be used. The Ohio Low-Level Radioactive Waste Education Program has a goal to provide people with information they want/need to make their own decisions. The program initiated its efforts by conducting a statewide survey to determine information needed by people and where they turned for that information. This presentation reports data from the survey and then explores the program development process in which programs were designed and presented using the information. Pre and post data from the programs reveal attitude and knowledge shifts.

  12. In the postmodern mirror: intertextuality in Angels and Insects by Antonia Susan Byatt

    Directory of Open Access Journals (Sweden)

    Buda Agata

    2015-05-01

    Full Text Available The aim of the paper is to analyse the novel Angels and Insects by Antonia Susan Byatt in terms of intertextual references. The author’s assumptions are based on the categorisation by Ryszard Nycz, who distinguishes three major types of intertexts: text versus text, text versus literary genre and text versus mimesis. Byatt uses intertextuality mainly to comment on the role of nature in the world, as well as to enhance the importance of human relationship with nature. Moreover, the writer moves towards literary criticism, discussing poems by famous artists, such as Alfred Tennyson or John Milton. In this way, the novel by Byatt is also an example of metafiction. All the narration techniques used by the English writer make the novel a typically postmodern work of art.

  13. Unequal Protection: Secondhand Smoke Threatens Health of Tenants in Multi-Unit Housing in Los Angeles.

    Science.gov (United States)

    Meng, Ying-Ying; Rahman, Tamanna; Hanaya, Daniel; Lam, Vanessa; Gomez, Marlene; Toy, Peggy; Wallace, Steven P

    2016-03-01

    Secondhand smoke is dangerous to a person's health at any level of exposure. Yet policies that prevent smoking are not in place for a majority of market-rate multi-unit housing complexes, according to a new survey of nearly 1,000 apartment dwellers in the city of Los Angeles. Approximately 37 percent of respondents reported that secondhand smoke had drifted into their apartments in the past year. Households with members of vulnerable populations, such as children or individuals with chronic conditions, are more likely to report smoke drifting from adjacent units. Four out of five respondents--including more than half of those who self-reported currently smoking--supported a smoke-free policy in common areas and/or individual units. PMID:27197310

  14. Quantitative x-ray diffraction mineralogy of Los Angeles basin core samples

    Science.gov (United States)

    Hein, James R.; McIntyre, Brandie R.; Edwards, Brian D.; Lakota, Orion I.

    2006-01-01

    This report contains X-ray diffraction (XRD) analysis of mineralogy for 81 sediment samples from cores taken from three drill holes in the Los Angeles Basin in 2000-2001. We analyzed 26 samples from Pier F core, 29 from Pier C core, and 26 from the Webster core. These three sites provide an offshore-onshore record across the Southern California coastal zone. This report is designed to be a data repository; these data will be used in further studies, including geochemical modeling as part of the CABRILLO project. Summary tables quantify the major mineral groups, whereas detailed mineralogy is presented in three appendices. The rationale, methodology, and techniques are described in the following paper.

  15. The origins of the Olympic Village: Los Angeles 1932 and Berlin 1936.

    Directory of Open Access Journals (Sweden)

    Massimo Bortolotti

    2009-06-01

    Full Text Available Regarding the transformations produced by the housing projects for the Olympic Games, the construction and following reuse of the Olympic Villages is an interesting studying matter. During the hundred-year-old history of the modern Olympics the realization of the Olympic Village, which finds reference in the de Coubertin’s writings, and the town planning transformations, to this correlated, have revealed in different ways. The essay mainly concerns the origins of the Olympic Village and the first settlements which characterized the Games in the thirties: Los Angeles 1932 and Berlin 1936. In these two cities, even though with different motivations, politico-economical stimulus and different images, the prototypes of the modern Olympic sport facilities, which find in the village an in the stadium the symbol of the event, were born.

  16. HYDROGEN AND FUEL CELL EDUCATION AT CALIFORNIA STATE UNIVERSITY, LOS ANGELES

    Energy Technology Data Exchange (ETDEWEB)

    Blekhman, David

    2011-09-30

    California State University, Los Angeles, has partnered with the Department of Energy in addressing the workforce preparation and public education needs of the fuel cell industry and the US economy through a comprehensive set of curriculum development and training activities: * Developing and offering several courses in fuel cell technologies, hydrogen and alternative fuels production, alternative and renewable energy technologies as means of zero emissions hydrogen economy, and sustainable environment. * Establishing a zero emissions PEM fuel cell and hydrogen laboratory supporting curriculum and graduate students teaching and research experiences. * Providing engaging capstone projects for multi-disciplinary teams of senior undergraduate students. * Fostering partnerships with automotive OEMs and energy providers. * Organizing and participating in synergistic projects and activities that grow the program and assure its sustainability.

  17. Diurnal tracking of anthropogenic CO2 emissions in the Los Angeles basin megacity during spring, 2010

    Directory of Open Access Journals (Sweden)

    K. R. Gurney

    2012-02-01

    Full Text Available Attributing observed CO2 variations to human or natural cause is critical to deducing and tracking emissions from observations. We have used in situ CO2, CO, and planetary boundary layer height (PBLH measurements recorded during the CalNex-LA (CARB et al., 2008 ground campaign of 15 May–15 June 2010, in Pasadena, CA, to deduce the diurnally varying anthropogenic component of observed CO2 in the megacity of Los Angeles (LA. This affordable and simple technique, validated by carbon isotope observations, is shown to robustly attribute observed CO2 variation to anthropogenic or biogenic origin. During CalNex-LA, local fossil fuel combustion contributed up to ~50 % of the observed CO2 enhancement overnight, and ~100 % during midday. This suggests midday column observations over LA, such as those made by satellites relying on reflected sunlight, can be used to track anthropogenic emissions.

  18. "Weak-Center" Gentrification and the Contradictions of Containment: deconcentrating poverty in downtown Los Angeles.

    Science.gov (United States)

    Reese, Ellen; DeVerteuil, Geoffrey; Thach, Leanne

    2010-01-01

    This case study of recent efforts to deconcentrate poverty within the Skid Row area of Los Angeles examines processes of "weak-center" gentrification as it applies to a "service dependent ghetto," thus filling two key gaps in prior scholarship. We document the collaboration between the government, business and development interests, and certain non-profit agencies in this process and identify two key mechanisms of poverty deconcentration: housing/service displacement and the criminalization of low income residents. Following Harvey, we argue that these efforts are driven by pressures to find a "spatial fix" for capital accumulation through Downtown redevelopment. This process has been hotly contested, however, illustrating the strength of counter-pressures to gentrification/poverty deconcentration within "weak-center" urban areas. PMID:20827846

  19. A Condom Distribution Program in the Los Angeles Men's Central Jail: Sheriff Deputies' Attitudes and Opinions.

    Science.gov (United States)

    McCuller, William J; Harawa, Nina T

    2014-06-16

    The K6G unit of Los Angeles Men's Central Jail is comprised of males who have sex with males (MSM), whether gay, bisexual, or transgender. Within this unit, condoms are distributed to inmates, one condom per week. The current study was conducted to better understand the experiences and opinions of jail staff as they pertain to the condom distribution program's effectiveness and impact on jail safety and management. A total of 10 staff interviews were conducted with the unit's line staff (n = 8) and administrative personnel (n = 2). Findings suggest that despite the contradictory "mixed message" that jail staff felt the program sent, it causes few operational or safety concerns and is perceived to be beneficial to public health. PMID:24934837

  20. Angel's share combats wine fraud: (14)C dating of wine without opening the bottle.

    Science.gov (United States)

    Fahrni, Simon M; Fuller, Benjamin T; Southon, John R

    2015-09-01

    The problem of fraud continues to plague the wine industry, and detecting cases where the original bottle has been refilled with an inferior vintage is especially difficult. A novel noninvasive procedure presented here relies on radiocarbon dating the so-called angel's share: the trace amounts of ethanol and other gases that diffuse into and through the cork as bottled wine ages and matures. These are collected by applying a vacuum to the top of the bottle and cryo-trapping the extracted gas, leaving the liquid contents untouched. Vintage verification is therefore possible without exposing the liquid contents to the atmosphere, which may render a bottle costing tens of thousands of dollars worthless for later resale and consumption. The method also has a potential for stable isotope ratio as well as chemical analysis to find indications for fraud or spoilage of fine and rare wines as well as other liquids with cork stoppers. PMID:26258285

  1. Case-control study of intracranial meningiomas in women in Los Angeles County, California

    International Nuclear Information System (INIS)

    A case-control study was conducted among women in Los Angeles County to investigate possible causes of intracranial meningiomas. Questionnaires sought information from patients and from a neighbor of each one on characteristics and past experiences that might be associated with the development of this disease. Information was obtained on 188 matched patient-neighbor pairs. Three primary factors appeared to be associated with meningioma occurrence: 1) a history of head trauma (odds ratio = 2.0, p = 0.01), 2) consumption of certain cured meats (odds ratio = 2.8, p = less than 0.01), and 3) exposure to medical and dental diagnostic X-rays to the head. For diagnostic X-rays, the strongest association was with early exposure (less than 20 yr old) to full-mouth dental X-ray series

  2. A Condom Distribution Program in the Los Angeles Men's Central Jail: Sheriff Deputy's Attitudes and Opinions

    Science.gov (United States)

    McCuller, William J.; Harawa, Nina T.

    2014-01-01

    The K6G unit of Los Angeles Men's Central Jail (MCJ) is comprised of males who have sex with males (MSM), whether gay, bisexual or transgender. Within this unit, condoms are distributed to inmates, one condom per week. The current study was conducted to better understand the experiences and opinions of jail staff as it pertains to the condom distribution program's effectiveness and impact on jail safety and management. A total of 10 staff interviews were conducted with the unit's line staff (n=8) and administrative personnel (n=2). Findings suggest that despite the contradictory “mixed message” that jail staff felt the program sent, it causes few operational or safety concerns and is perceived to be beneficial to public health. PMID:24934837

  3. Cyber against punk: Greg Bear’s Queen of Angels as metamorphosed cyberpunk

    Directory of Open Access Journals (Sweden)

    M. F. Blatchford

    1994-05-01

    Full Text Available Recent American science fiction (which commercially dominates world science fiction incorporates two schools of thought, ‘cyberpunk' and ‘hard SF’. which may be read to embody, respectively, radical/liberal and patriotic/ conservative propaganda. This article, after attempting to define aspects of these schools, examines Queen of Angels by Greg Bear (who before producing that text had been a proponent of hard SF. This text is shown to have strong elements of cyberpunk (possibly, to judge by one critical review, appealing to a cyberpunk audience but to have transformed and inverted the radical and liberal themes of cyberpunk into conservative themes. The text thus illuminates philosophical and technical differences between the schools. It is suggested that the imagery of cyberpunk, and perhaps that of science fiction in general, is liable to such reversals of ideological significance.

  4. Evaluating the Impact of Conservation Measures on Urban Water Fluxes in Los Angeles, California

    Science.gov (United States)

    Manago, K. F.; Hogue, T. S.

    2015-12-01

    California is experiencing one of the most severe droughts on record. In response, the State Water Resources Control Board adopted emergency regulations in May, implementing a mandatory 25% statewide reduction in potable urban water use. Prior to this, the Los Angeles Department of Water and Power had implemented mandatory restrictions and a pricing increase in 2009 and 2010, respectively to encourage reduced consumption. Understanding where conservation measures are having the greatest impact and how it is affecting water fluxes throughout the basin is critical, especially when considering the push for increased reliance on local water resources. Los Angeles is selected as the study area due to its high degree of urbanization, while the Ballona Creek watershed is used for runoff analysis due to the lack of dams and wastewater treatment plants altering flow in the channel. Utilizing a combination of runoff gages, groundwater monitoring well data, consumption data, and hydrologic models, we aim to evaluate how hydrologic processes have been influenced by water conservation measures. The work focuses on how changes in outdoor water use have influenced discharge patterns and groundwater recharge since most of the water conservation efforts have been focused on decreasing landscape irrigation. Previous work has shown that outdoor irrigation rates have decreased after the implementation of conservation measures, causing a decrease in vegetation greenness across the city. Runoff has also significantly decreased, especially dry season discharge. Further work is also being conducted to evaluate changes to evapotranspiration, using a combination of NLDAS model results and CIMIS reference ET data, as well as groundwater and recharge, utilizing a Bayesian Hierarchical model to fill missing groundwater monitoring well data. Results provide improved understanding of response to, and impacts of, conservation measures which ultimately allow for better water resources management

  5. Predicting tree water use and drought tolerance from leaf traits in the Los Angeles urban ecosystem

    Science.gov (United States)

    John, G. P.; Scoffoni, C.; Sack, L.

    2013-12-01

    Urban green space provides a suite of valuable ecosystem services. In semiarid systems, like Los Angeles, trees rely primarily on irrigation water for transpiration. Managers may need to reduce irrigation associated with urban trees given climate change, urban expansion, and the steady decrease in available freshwater. While leaf and whole plant water relations have been extensively studied, we are only now gaining a detailed understanding of diverse leaf anatomical designs, and their use for predicting physiology and water use at landscape scale. For 50 diverse urban species, we quantified leaf anatomical and physiological traits important to tree drought tolerance and water use efficiency including turgor loss point, vein architecture, cellular anatomy, leaf mass per unit area, and petiole and leaf dimensions. We hypothesized detailed relationships to develop models relating leaf functional traits to tree water relations. These models provide key insights regarding the role of anatomical designs in leaf stress tolerance and water use efficiency. Additionally we predicted how traits measured at the leaf level would scale with existing data for individuals at the whole plant level. We tested our predictions by determining correlations between leaf level anatomical traits and drought tolerance. Additionally, we determined correlations between functional traits, physiology and water use, and the climate of origin for the urban species. Leaf level measurements will be valuable for rapid estimation of more difficult to measure whole plant water relations traits important at the landscape scale. The Los Angeles urban ecosystem can serve as a model for other semiarid system and provide more informed system wide water conservation strategies.

  6. Amplification and Attenuation in the Los Angeles and Kanto Sedimentary Basins using the Ambient Seismic Field

    Science.gov (United States)

    Denolle, M.; Prieto, G.; Lawrence, J. F.; Beroza, G. C.; Hirata, N.; Nakagawa, S.; Miyake, H.; Kasahara, K.; Sakai, S.; Aketagawa, T.; Kimura, H.

    2010-12-01

    Ground motion prediction is traditionally estimated in seismic hazard analysis using parametric scaling relations, which are often referred to as "attenuation relations." Increasingly, seismologists are turning to simulation-based hazard analysis. There are at least two reasons for this. First, it allows seismologists to overcome the scarcity of data from large events in the data. Second, it exploits our growing knowledge of the geological complexity of the Earth's crust and our ability to model wave propagation through it. The accuracy of these simulations is critical to their use for risk reduction, but is limited by our incomplete knowledge of the elastic and anelastic structure of the subsurface. The situation is particularly acute for sedimentary basins that underlie densely populated urban centers such as Los Angeles and Tokyo, both because the exposure is so high, and because it is difficult to obtain new images of Earth structure in urban settings. In this study, we show how ambient seismic field analysis can improve this situation. We take the advantage of the dense seismic networks in those areas and use 9 months of continuous records for about 180 stations from the Southern Californian Seismic Networks for Los Angeles and 6 months of a combination of 190 MeSO-net stations and 110 Hi-net instruments in Tokyo area. We estimate the basin amplification of these comparable urban centers with ambient field transfer function, or impulse response. The ambient seismic field also provides constraints on the attenuation signal in surface waves, and hence on the anelastic structure of the Earth. We exploit this by using the real part of the complex coherence to estimate the attenuation coefficient of Rayleigh waves, and from it variations in the anelastic structure. We acknowledge the support by the Special Project for Earthquake Disaster Mitigation in Tokyo Metropolitan Area from the Ministry of Education, Culture, Sports, Science and Technology of Japan.

  7. Diet and Obesity in Los Angeles County 2007–2012: Is there a measurable effect of the 2008 “Fast-Food Ban”?

    OpenAIRE

    Sturm, Roland; Hattori, Aiko

    2015-01-01

    We evaluate the impact of “Los Angeles Fast-Food Ban”, a zoning regulation that restricts opening/remodeling of standalone fast-food restaurants in South Los Angeles since 2008. Food retail permits issued after the ban are more often for small food/convenience stores and less often for larger restaurants not part of a chain in South Los Angeles compared to other areas; there are no significant differences in the share of new fast-food chain outlets, other chain restaurants, or large food mark...

  8. Mapping CH4 : CO2 ratios in Los Angeles with CLARS-FTS from Mount Wilson, California

    Directory of Open Access Journals (Sweden)

    K. W. Wong

    2014-06-01

    Full Text Available The Los Angeles megacity, which is home to more than 40% of the population in California, is the second largest megacity in the United States and an intense source of anthropogenic greenhouse gases (GHGs. Quantifying GHG emissions from the megacity and monitoring their spatiotemporal trends are essential to be able to understand the effectiveness of emission control policies. Here we measure carbon dioxide (CO2 and methane (CH4 across the Los Angeles megacity using a novel approach – ground-based remote sensing from a mountaintop site. A Fourier Transform Spectrometer (FTS with agile pointing optics, located on Mount Wilson at 1.67 km above sea level, measures reflected near infrared sunlight from 29 different surface targets on Mount Wilson and in the Los Angeles megacity to retrieve the slant column abundances of CO2, CH4 and other trace gases above and below Mount Wilson. This technique provides persistent space and time resolved observations of path-averaged dry-air GHG concentrations, XGHG, in the Los Angeles megacity and simulates observations from a geostationary satellite. In this study, we combined high sensitivity measurements from the FTS and the panorama from Mount Wilson to characterize anthropogenic CH4 emissions in the megacity using tracer : tracer correlations. During the period between September 2011 and October 2013, the observed XCH4 : XCO2 excess ratio, assigned to anthropogenic activities, varied from 5.4 to 7.3 ppb CH4 (ppm CO2−1, with an average of 6.4 ± 0.5 ppb CH4 (ppm CO2−1 compared to the value of 4.6 ± 0.9 ppb CH4 (ppm CO2−1 expected from the California Air Resources Board (CARB bottom-up emission inventory. Persistent elevated XCH4 : XCO2 excess ratios were observed in Pasadena and in the eastern Los Angeles megacity. Using the FTS observations on Mount Wilson and the bottom-up CO2 emission inventory, we derived a top-down CH4 emission of 0.39± 0.06 Tg CH4 year−1 in the Los Angeles megacity. This is 18

  9. 苔丝的谋杀者——"家里的天使"%"The Angel in the House"Murdered Pure Tess

    Institute of Scientific and Technical Information of China (English)

    徐婷

    2011-01-01

    @@ "The Angel in the House"--a ethical standard of emphasis to female virginity has sunk deep into the hearts of people in the Victorian Age.It was this man-eating value that killed Tess step by step.

  10. Previous Adverse Infant Outcomes as Predictors of Preconception Care Use: An Analysis of the 2010 and 2012 Los Angeles Mommy and Baby (LAMB) Surveys.

    Science.gov (United States)

    Batra, Priya; Higgins, Chandra; Chao, Shin M

    2016-06-01

    Objectives This study aimed to understand the impact of a previous adverse infant outcome (AIO) on use of preconception care prior to a subsequent pregnancy. Methods Responses from the 2010 and 2012 Los Angeles Mommy and Baby Surveys were analyzed. Weighted multivariate logistic regression was employed to identify significant associations between having had a previous AIO (preterm delivery, low birth weight infant, stillbirth, or major birth defect) and receipt of preconception care prior to the most recent pregnancy. Select patient-level covariates were included: chronic disease, age, education level, race/ethnicity, country of birth, insurance status prior to pregnancy and pregnancy intent. Adjustment for missing responses was performed using multiple chained imputation. Results After controlling for covariates, having had a previous AIO was associated with an increased odds of having utilized preconception care in the most recent pregnancy (OR 1.237, p = 0.040). Per the final regression model, a woman reporting a previous AIO and an intended subsequent pregnancy had a 42.4 % likelihood of having used preconception care. Of these women, only 28.8 % reported doing so because of concern regarding a previous birth complication. Discussion Women reporting a previous AIO were more likely to have used preconception care in a subsequent pregnancy. The prevalence of preconception care utilization remained low overall. Pregnancy intent emerged as a strong secondary predictor; any concerted strategy to improve access to preconception care must include initiatives to help ensure that pregnancies are planned. PMID:26679708

  11. Sudden weaning of angel fish pterophyllum scalare (Lichtenstein) (Pisces; Cichlidae) larvae from brine shrimp (Artemia sp) nauplii to formulated larval feed.

    Science.gov (United States)

    Herath, Sandamali Sakunthala; Atapaththu, Kerthi Sri Senarathna

    2013-12-01

    This study investigated the effects of sudden weaning of angel fish larvae (Pteraphylum scalari) from Artemia nauplii to commercial larval feed. Four days post hatch (DPH) larvae were reared in four different weaning protocols (TR1-TR4) with triplicates in a complete randomize design. Larvae in TR1 and TR4 were exclusively fed Artemia nauplii and dry feed respectively. In TR2 and TR3, larvae were initially fed Artemia nauplii and suddenly wean to formulated feed on 14 DPH and 7 DPH respectively. The experiment was lasted for 28 days. At the end of the experiment, final mean weight (FW), total length (FL), height (FH), Daily Weight Gain (DWG), Specific Growth Rate (SGR), survival and stress index were compared. Significantly highest (P < 0.05) FW, DWG and SGR were observed in TR1 and TR2 while former values of TR3 were not significantly different from TR1. Highest FL observed in TR1 and TR2 while FL of TR2 was statistically similar to that of TR3. The poorest growth was observed in larvae solely fed formulated feed. Survival and the stress index were independent from weaning methods. Although sudden weaning is possible on 7 DPH, larvae showed comparatively higher growth when switch off to formulate feed on 14 DPH. PMID:23626927

  12. A Midpoint Process Evaluation of the Los Angeles Basin Racial and Ethnic Approaches to Community Health Across the US (REACH US) Disparities Center, 2007-2009

    OpenAIRE

    Maxwell, Annette E.; Yancey, Antronette K.; AuYoung, Mona; Guinyard, Joyce J.; Glenn, Beth A.; Mistry, Ritesh; Simon, Paul A.; Bastani, Roshan; McCarthy, William J.; Jonathan E. Fielding

    2011-01-01

    Background Racial/ethnic minority groups have higher risks for disease resulting from obesity. Community Context The University of California, Los Angeles, and the Los Angeles County Department of Public Health partnered with community organizations to disseminate culturally targeted physical activity and nutrition-based interventions in worksites. Methods We conducted community dialogues with people from 59 government and nonprofit health and social service agencies to develop wellness strat...

  13. Facilitators and Barriers to Implementing a Local Policy to Reduce Sodium Consumption in the County of Los Angeles Government, California, 2009

    OpenAIRE

    Lauren N. Gase, MPH; Tony Kuo, MD, MSHS; Diane O. Dunet, PhD; Paul A. Simon, MD, MPH

    2011-01-01

    Introduction This qualitative study explores facilitators and barriers to a proposed food procurement policy that would require food purchasers, distributors, and vendors of food service in the County of Los Angeles government to meet specified nutrition standards, including limits on sodium content. Methods We conducted 30 key informant interviews. Interviewees represented 18 organizations from the County of Los Angeles government departments that purchased, distributed, or sold food; public...

  14. Does Preconception Health Differ by Nativity?: Findings from the Los Angeles Mommy and Baby (LAMB) Study.

    Science.gov (United States)

    Chao, Shin M; Wakeel, Fathima; Nazinyan, Yeghishe; Sun, Stacy

    2016-04-01

    Objectives To compare certain preconception health (PCH) behaviors and conditions among US-born (USB) and foreign-born (FB) mothers in Los Angeles County (LAC), regardless of race/ethnicity, and to determine if any identified differences vary among Asian/Pacific Islanders (API's) and Hispanics. Methods Data are from the 2012 Los Angeles Mommy and Baby study (n = 6252). PCH behaviors included tobacco use, multivitamin use, unintended pregnancy, and contraception use. PCH conditions comprised being overweight/obese, diabetes, asthma, hypertension, gum disease, and anemia. The relationship between nativity and each PCH behavior/condition was assessed using multivariable logistic regression models. Results USB women were more likely than FB women to smoke (AOR 2.12, 95 % CI 1.49-3.00), be overweight/obese (AOR 1.57, 95 % CI 1.30-1.90), and have asthma (AOR 2.04, 95 % CI 1.35-3.09) prior to pregnancy. They were less likely than FB women to use contraception before pregnancy (AOR 0.59, 95 % CI 0.49-0.72). USB Hispanics and API's were more likely than their FB counterparts to be overweight/obese (AOR 1.57, 95 % CI 1.23-2.01 and AOR 2.37, 95 % CI 1.58-3.56, respectively) and less likely to use contraception (AOR 0.58, 95 % CI 0.45-0.74 and AOR 0.46, 95 % CI 0.30-0.71, respectively). USB Hispanic mothers were more likely than their FB counterparts to smoke (AOR 2.47, 95 % CI 1.46-4.17), not take multivitamins (AOR 1.30, 95 % CI 1.02-1.66), and have asthma (AOR 2.35, 95 % CI 1.32-4.21) before pregnancy. Conclusions US nativity is linked to negative PCH among LAC women, with many of these associations persisting among Hispanics and API's. As PCH profoundly impacts maternal and child health across the lifecourse, culturally-appropriate interventions that maintain positive behaviors among FB reproductive-aged women and encourage positive behaviors among USB women should be pursued. PMID:26728899

  15. Statistical and Biophysical Models for Predicting Total and Outdoor Water Use in Los Angeles

    Science.gov (United States)

    Mini, C.; Hogue, T. S.; Pincetl, S.

    2012-04-01

    Modeling water demand is a complex exercise in the choice of the functional form, techniques and variables to integrate in the model. The goal of the current research is to identify the determinants that control total and outdoor residential water use in semi-arid cities and to utilize that information in the development of statistical and biophysical models that can forecast spatial and temporal urban water use. The City of Los Angeles is unique in its highly diverse socio-demographic, economic and cultural characteristics across neighborhoods, which introduces significant challenges in modeling water use. Increasing climate variability also contributes to uncertainties in water use predictions in urban areas. Monthly individual water use records were acquired from the Los Angeles Department of Water and Power (LADWP) for the 2000 to 2010 period. Study predictors of residential water use include socio-demographic, economic, climate and landscaping variables at the zip code level collected from US Census database. Climate variables are estimated from ground-based observations and calculated at the centroid of each zip code by inverse-distance weighting method. Remotely-sensed products of vegetation biomass and landscape land cover are also utilized. Two linear regression models were developed based on the panel data and variables described: a pooled-OLS regression model and a linear mixed effects model. Both models show income per capita and the percentage of landscape areas in each zip code as being statistically significant predictors. The pooled-OLS model tends to over-estimate higher water use zip codes and both models provide similar RMSE values.Outdoor water use was estimated at the census tract level as the residual between total water use and indoor use. This residual is being compared with the output from a biophysical model including tree and grass cover areas, climate variables and estimates of evapotranspiration at very high spatial resolution. A

  16. Extraction and Analysis of PAHs in Surface Soils Near Freeways in Los Angeles

    Science.gov (United States)

    Mannino, I.

    2004-12-01

    Large urban areas such as Los Angeles are characterized by high levels of motor vehicle traffic. A by-product of this traffic is the emission of a group of compounds known as polycyclic aromatic hydrocarbons (PAHs). PAHs are a global-scale persistent environmental hazard, many of which are considered to be carcinogenic. This study investigated the prevalence of 16 PAHs in surface soils near major Los Angeles highways. The first phase of the study was the development of a methodology for efficiently extracting PAHs from soil. Preliminary findings suggested that the most efficient extraction method using an accelerated solvent extractor employed a mixture of acetone and hexane and a static extraction time of 5 minutes (completed in 2 cycles). Extraction efficiency was measured by spiking clean sand with a known amount of a PAH standard and extracting and analyzing the sand. The addition of an extra static cycle produced a significant increase in extraction efficiency. For example, utilization of 2 static cycles recovered 99.6% of the spiked phenanthrene compared to a 44% efficiency for the 1 cycle run. Preliminary results from a field sampling campaign indicated that significant concentrations of PAHs are deposited onto and accumulate in surface soils. Specifically, we found 12.13 μ g/kg of anthracene, 15.82 μ g/kg of benzo(a)pyrene, 23.42 μ g/kg of phenanthrene, and 23.43 μ g/kg of pyrene in surface soils, including soils from a public park. These results indicate that background levels of PAHs in soils may pose a significant health risk to humans. For example, the California preliminary remediation goal for benzo(a)pyrene in residential soils is 62 μ g/kg, slightly greater than our reported background values. A more detailed field sampling campaign will be pursued to elucidate the role of different environmental variables (i.e., time of day, sun intensity, traffic congestion, etc.), on the accumulation of PAHs in soils.

  17. Drivers of variability in water use of native and non-native urban trees in the greater Los Angeles area

    OpenAIRE

    McCarthy, Heather R.; Pataki, Diane E.

    2010-01-01

    Trees in urban ecosystems are valued for shade and cooling effects, reduction of CO2 emissions and pollution, and aesthetics. However, in arid and semi-arid regions, urban trees must be maintained through supplemental irrigation, in competition with other water needs. Currently, a comprehensive understanding of the factors which influence water use of urban tree species is lacking. In order to study the drivers of whole tree water use of two common species in the Los Angeles Basin urban fores...

  18. West Angeles Community Development Corporation final technical report on export market feasibility planning and research for the solar medical autoclave

    Energy Technology Data Exchange (ETDEWEB)

    Power, G.D.

    1998-04-20

    This report summarizes core findings from an investigation performed by the staff of West Angeles Community Development Corporation (CDC) regarding the feasibility of marketing the Solar Medical Autoclave (``autoclave``) in South Africa. The investigation was completed during 1997, the period prescribed by the Grant Award made by the U.S. Department of Energy on January 1, 1997, and was monitored by the National Renewable Energy Laboratory.

  19. Role of a Psychiatric Pharmacist in a Los Angeles “Skid-Row” safety-net clinic

    OpenAIRE

    Wang, Indriani; Dopheide, Julie Ann; Gregerson, Paul

    2011-01-01

    Limited access to a psychiatrist prompted a collaborative practice agreement between a psychiatric pharmacist, a psychiatric pharmacy resident, and primary care physicians at the Center for Community Health, a safety-net clinic providing comprehensive care to the homeless in Skid Row, Los Angeles, CA, USA. From July 2009 to February 2010, 36 (75%) of the 48 patients referred to the psychiatric pharmacy resident met the criteria for the chart review. Twenty-six (54%) were seen for regular foll...

  20. The impact of the April 1992 civil unrest on the Los Angeles REI WIC program and its participants.

    OpenAIRE

    Golden, R E; Baranov, M S

    1994-01-01

    This paper discusses the findings of a study conducted in south central Los Angeles in August 1992 among women in the Special Supplemental Food Program for Women, Infants, and Children. The goals of the study were to determine the current demographics of WIC participants; examine the financial hardship, need for relief services, and extent of hunger resulting from the civil unrest of April 1992; look at the effects of the unrest on different ethnic groups; determine the unmet need for WIC ser...

  1. The Fossil Fueled Metropolis: Los Angeles and the Emergence of Oil-Based Energy in North America, 1865--1930

    Science.gov (United States)

    Cooke, Jason Arthur

    Beginning with coal in the nineteenth century, the mass production and intensive consumption of fossil fuel energy fundamentally changed patterns of urban and industrial development in North America. Focusing on the metropolitan development of Los Angeles, this dissertation examines how the emergence of oil-based capitalism in the first three decades of the twentieth century was sustained and made increasingly resilient through the production of urban and industrial space. In a region where coal was scarce, the development of oil-based energy was predicated on long-term investments into conversion technologies, storage systems and distribution networks that facilitated the efficient and economical flow of liquefied fossil fuel. In this dissertation, I argue that the historical and geographical significance of the Southern California petroleum industry is derived from how its distinctive market expansion in the first three decades of the twentieth century helped establish the dominance of oil-based energy as the primary fuel for transportation in capitalist society. In North America, the origins of oil-based capitalism can be traced to the turn of the twentieth century when California was the largest oil-producing economy in the United States and Los Angeles was the fastest growing metropolitan region. This dissertation traces how Los Angeles became the first city in North America where oil became a formative element of urban and industrial development: not only as fuel for transportation, but also in the infrastructures, landscapes and networks that sustain a critical dependence on oil-based energy. With a distinctive metropolitan geography, decentralized and automobile-dependent, Los Angeles became the first oil-based city in North America and thus provides an ideal case study for examining the regional dynamics of energy transition, establishment and dependence. Interwoven with the production of urban and industrial space, oil remains the primary fuel that

  2. Won't You Be My Neighbor? Race, Class, and Residence in Los Angeles By Camille Zubrinsky Charles

    OpenAIRE

    Kristin L. Perkins

    2008-01-01

    Residential segregation means that minorities often live in undesirable neighborhoods; yet where we live affects our economic opportunity, social networks, and quality of life. Camille Zubrinsky Charles's book, Won't You Be My Neighbor? Race Class, and Residence in Los Angeles, adds to existing research that has historically focused solely on black-white residential segregation by expanding the scope to include the residential preferences and racial attin_;des of native and foreign-born Latin...

  3. Isotopic measurements of atmospheric methane in Los Angeles, California, USA: Influence of “fugitive” fossil fuel emissions

    Science.gov (United States)

    Townsend-Small, Amy; Tyler, Stanley C.; Pataki, Diane E.; Xu, Xiaomei; Christensen, Lance E.

    2012-04-01

    Recent studies have suggested that CH4 emissions in Los Angeles and other large cities may be underestimated. We utilized stable isotopes (13C and D) and radiocarbon (14C) to investigate sources of CH4 in Los Angeles, California. First, we made measurements of δ13C and δD of various CH4 sources in urban areas. Fossil fuel CH4 sources (oil refineries, power plants, traffic, and oil drilling fields) had δ13C values between -45 and -30‰ and dD values between -275 and -100‰, whereas biological CH4 (cows, biofuels, landfills, sewage treatment plants, and cattle feedlots) had δ13C values between -65 and -45‰ and δD values between -350 and -275‰. We made high-altitude observations of CH4 concentration using continuous tunable laser spectroscopy measurements combined with isotope analyses (13C, 14C, and D) of discrete samples to constrain urban CH4 sources. Our data indicate that the dominant source of CH4 in Los Angeles has a δ13C value of approximately -41.5‰ and a δD value between -229 and -208‰. Δ14C of CH4 in urban air samples ranged from +262 to +344‰ (127.1 to 134.9 pMC), depleted with respect to average global background CH4. We conclude that the major source of CH4 in Los Angeles is leakage of fossil fuels, such as from geologic formations, natural gas pipelines, oil refining, and/or power plants. More research is needed to constrain fluxes of CH4 from natural gas distribution and refining, as this flux may increase with greater reliance on natural gas and biogas for energy needs.

  4. ACHIEVING EFFICIENCY AND EQUITY IN IRRIGATION MANAGEMENT: AN OPTIMIZATION MODEL OF THE EL ANGEL WATERSHED, CARCHI, ECUADOR

    OpenAIRE

    Evans, Elizabeth M; Lee, David R.; Boisvert, Richard N.

    2002-01-01

    The objective of this paper is to address the problems of inefficiency and inequity in water allocation in the El Angel watershed, located in Ecuador's Sierra region. Water is captured in a high-altitude region of the watershed and distributed downstream to producers in four elevation-defined zones via a system of canals. Upstream and downstream producers face radically different conditions with respect to climate and terrain. A mathematical programming model was created to study the conseque...

  5. The Promise and Principles of Real Estate Development in an American Metropolis: Los Angeles 1903-1923

    OpenAIRE

    Redford, Laura

    2014-01-01

    This dissertation provides a new perspective to apply in the study of metropolitan development at the turn of 20th Century America. It reveals a group of entrepreneurial men whose collective contribution to the real estate industry had just as much to do with shaping urban spaces as the wealthy, more established, and power-wielding elites that are often credited with such development. Los Angeles is the case study of the dissertation because it underwent such a dramatic transformation durin...

  6. The relationship between slack resources and the performance of entrepreneurial firms: The role of venture capital and angel investors.

    OpenAIRE

    T. VANACKER; V. COLLEWAERT; I. PAELEMAN

    2013-01-01

    In this study, we seek to further delineate factors that condition the relationship between slack resources and firm performance. To do so, we develop and test a model that establishes the role of venture capital (VC) and angel investors as powerful external stakeholders who positively moderate the slack-performance relationship. In addition, we provide more insight into this relationship by examining differences between these two types of private investors and by examining the role of their ...

  7. Reclaiming our Past: A Critical Race History of Chicana/o Education In South Central Los Angeles, 1930-1949

    OpenAIRE

    Alonso, LLuliana

    2015-01-01

    This dissertation explores the educational experiences of Chicana/os in the first half of the twentieth century using one of the most ethnically diverse communities in the state of California—South Central Los Angeles—as a case study. Driven by the following questions, my research explored: 1) What were the social and economic conditions of the Mexican community of South Central Los Angeles during 1930-1949? 2) What were the dominant discourses about this population during the period understu...

  8. The Association between Nutrition Facts Label Utilization and Comprehension among Latinos in Two East Los Angeles Neighborhoods

    OpenAIRE

    Sharif, MZ; Rizzo, S; Prelip, ML; Glik, DC; Belin, TR; Langellier, BA; Kuo, AA; Garza, JR; Ortega, AN

    2014-01-01

    Background: The Nutrition Facts label can facilitate healthy dietary practices. There is a dearth of research on Latinos' utilization and comprehension of the Nutrition Facts label. Objective: To measure use and comprehension of the Nutrition Facts label and to identify correlates among Latinos in East Los Angeles, CA. Design: Cross-sectional interviewer-administered survey using computer-assisted personal interview software, conducted in either English or Spanish in the participant's home. P...

  9. Cyber against punk: Greg Bear’s Queen of Angels as metamorphosed cyberpunk

    OpenAIRE

    M. F. Blatchford

    1994-01-01

    Recent American science fiction (which commercially dominates world science fiction) incorporates two schools of thought, ‘cyberpunk' and ‘hard SF’. which may be read to embody, respectively, radical/liberal and patriotic/ conservative propaganda. This article, after attempting to define aspects of these schools, examines Queen of Angels by Greg Bear (who before producing that text had been a proponent of hard SF). This text is shown to have strong elements of cyberpunk (possibly, to judge by...

  10. Beat Medusa: The model angelic woman in the first romance novel of Carmen de Icaza. Femininity and traditionalism

    OpenAIRE

    Miguel Soler Gallo

    2015-01-01

    This paper presents an analysis of the traditional ideal of women in the first romance novel of Carmen de Icaza, a preeminent author in postwar Spanish literature. In the novel, two female models, an angel, representing the protagonist and the idea of traditional femininity, and the monster, who plays the antagonist and reflects the diametrically opposing view of morality to that imposed by the patriarchal society. In this novel Icaza spreads her conservative ideology to the female readers, m...

  11. Effects of Feeding Frequency on Growth Performance and Survival Rate of Angel Fish, Pterophyllum scalare (Perciformes: Cichlidae

    Directory of Open Access Journals (Sweden)

    Milad Kasiri

    2011-06-01

    Full Text Available The freshwater angel fish (Pterophyllum scalare Schultze, 1823 is South American cichlid become very popular among aquarists. There is little information on their culture and aquarium husbandry. In this study growth performance and survival rate of angelfish subjected to different feeding frequencies were evaluated. Four groups of angel fish juveniles (0.87 ± 0.01 g; 3.98 ± 0.08 mm were fed either four meals per day (F1, two meals per day (F2, one meal per day (F3 and every other day (F4 for 90 days. Final live weight and specific growth rate (SGR values of group F1 and F2 were significantly higher than those of the other groups (P 0.05 in survival rate among the treatments. The best feed conversion ration (FCR was obtained from four daily feeding (F1 (P 0.05 among experimental groups. In conclusion, the best results in growth performance were obtained by feeding four meals per day (F1 and two meals per day (F2, so they were recommended for angel fish feeding.

  12. Low-cost solid catalyst derived from waste Cyrtopleura costata (Angel Wing Shell) for biodiesel production using microalgae oil

    International Nuclear Information System (INIS)

    Highlights: • New low-cost catalyst was successfully synthesized by waste shell Cyrtopleura costata. • Microalgae were cultivated by using simple photo bioreactor (PBR) system. • Microalgae oil was extracted and used as feedstocks for biodiesel production. • The highest FAME yield was 84% in 1 h reaction time. - Abstract: In the present work, Cyrtopleura costata (Angel Wing Shell) is used for the first time to synthesis of CaO. The produced CaO was utilized as a catalyst for biodiesel production from microalgae Nannochloropsis oculata oil. The Angel Wing Shell (AWS) was calcined at 800 °C and 900 °C for 2 h to convert CaCO3 to activate metal oxide phase. The synthesized catalysts were characterized by using Thermogravimetric analysis (TGA), X-ray diffraction (XRD), Temperature programmed desorption of CO2 (CO2-TPD), BET surface area and Scanning electron microscopy (SEM) analysis. The calcined Angel Wing Shell at 900 °C (CAWS 900) was chosen as the best catalyst due to its high basicity and surface area. This also corresponded to optimization condition where, CAWS 900 showed highest FAME yield (84.11%) at oil to methanol molar ratio 1:150 and catalyst loading of 9 wt.% in 1 h reaction time. The CAWS 900 catalyst also can be reused more than three times with FAME yield greater than 65%. Overall, AWS appears to be an acceptable solid catalyst to convert microalgae oil to biodiesel

  13. Integrated Stormwater Management in Los Angeles, California: Best Management Practices and Evaluation of Ancillary Benefits

    Science.gov (United States)

    Hogue, T. S.

    2014-12-01

    Best Management Practices (BMPs) and Low Impact Development (LID) have been the primary tools to address quantitative and qualitative surface runoff impacts. The City of Los Angeles (City) is evaluating plans for individual Total Maximum Daily Load (TMDL) pollutants in each of its major watersheds. However, it has yet to be studied if implementing individual BMP projects will adequately address water quality objectives for receiving (downstream) water bodies, such as Ballona Creek, Ballona Estuary and the Santa Monica Bay. In addition, there is significant uncertainty surrounding potential ancillary benefits (flood reduction, water supply, green space, etc.) from BMP/LID implementation. This presentation will overview our work with the City evaluating the influence of BMPs and LIDs in improving water quality at the watershed scale as well as quantifying other hydrologic benefits. Multiple BMP scenarios are considered to identify various pathways toward improved receiving water body quality in Ballona Creek and Dominquez watersheds. Specific study objectives are to: 1) identify suites of BMP scenarios which can lead to TMDL compliance, 2) quantify the multiple benefits provided by BMPs beyond their primary water quality improvement purpose, and 3) evaluate the success of using existing software for watershed-scale BMP modeling. Our goal is to provide realistic, implementable pathways that can be used by stakeholders to help plan for future education, outreach and capital improvement programs as well as determine feasible pollutant reduction objectives.

  14. Prismatic Metropolis: Race and Residential Segregation in the City of the Angels

    Science.gov (United States)

    Zubrinsky; Bobo

    1996-12-01

    Most major urban areas remain segregated by race, especially in terms of black segregation from whites. We replicate and extend the innovative approach developed by Farley and colleagues for understanding processes of racial residential segregation with data collected in Los Angeles. Using a large (N = 4025) multiracial sample of adults, we examine (1) actual and perceived differences in economic status, (2) mutual preference for same race neighbors, and (3) racial prejudice and discrimination as hypotheses for the persistence of residential segregation. With a systematic experimental design we gauge respondent openness to living in areas with varying proportions of black, white, Latino, or Asian neighbors. We find no support for actual or perceived cost of housing as a barrier to integration. Although all groups exhibit some degree of ethnocentric preference for same race neighbors, this tendency is strongest among whites rather than blacks and plays only a small role in perpetuating segregation. Blacks face the greatest hostility in the search for housing and are consensually recognized as most likely to face discrimination in the housing market. Racial minorities are more open to sharing residential space with whites than with other minorities. We find generally higher rates of openness to integration than Farley and colleagues found in their recent Detroit survey. PMID:8980078

  15. Air quality impacts of a CicLAvia event in Downtown Los Angeles, CA.

    Science.gov (United States)

    Shu, Shi; Batteate, Christina; Cole, Brian; Froines, John; Zhu, Yifang

    2016-01-01

    CicLAvia in Los Angeles, CA is the open streets program that closes streets to motorized vehicles and invites people to walk, run, play or ride their bicycles on these streets, allowing them to experience the city in a new way and get exercise at the same time. Since the events reduce the motorized traffic flow, which is a significant source of air pollution, on the streets, it is reasonable to hypothesize that the CicLAvia events can reduce the concentrations of traffic-emitted air pollutants during the road closure. This study is the first experiment to test this hypothesis. The on-road and community-wide ultrafine particle (UFP) and PM2.5 were measured on the Event-Sunday (October 5th, 2014) and the Pre- and Post- Sundays (September 28(th) and October 12(th), 2014). Data analysis results showed the on-road UFP and PM2.5 reduction was 21% and 49%, respectively, and the community-wide PM2.5 reduction was 12%. PMID:26493865

  16. Solar envelope zoning: application to the city planning process. Los Angeles case study

    Energy Technology Data Exchange (ETDEWEB)

    1980-06-01

    Solar envelope zoning represents a promising approach to solar access protection. A solar envelope defines the volume within which a building will not shade adjacent lots or buildings. Other solar access protection techniques, such as privately negotiated easements, continue to be tested and implemented but none offer the degree of comprehensiveness evident in this approach. Here, the City of Los Angeles, through the Mayor's Energy Office, the City Planning Department, and the City Attorney's Office, examine the feasibility of translating the concept of solar envelopes into zoning techniques. They concluded that envelope zoning is a fair and consistent method of guaranteeing solar access, but problems of complexity and uncertainty may limit its usefulness. Envelope zoning may be inappropriate for the development of high density centers and for more restrictive community plans. Aids or tools to administer envelope zoning need to be developed. Finally, some combination of approaches, including publicly recorded easements, subdivision approval and envelope zoning, need to be adopted to encourage solar use in cities. (MHR)

  17. Images of the EU in EPA negotiations: Angel, demon - or just human?

    Directory of Open Access Journals (Sweden)

    Ole Elgström

    2008-12-01

    Full Text Available A striking feature of the discourses surrounding the negotiations of Economic Partnership Agreements between the EU and developing states is the starkly contrasting pictures given of the role and nature of the EU. The Union is either portrayed as an angel, an actor with altruistic objectives, concerned primarily with the economic and social development of the ACP countries, or as a demon, an actor driven by self-interest with an hidden agenda and using confrontational tactics. The first image is mainly held by Commission officials, the second by NGO representatives. In this article, I establish the existence of the two contrasting images, try to explain theoretically the nature of the debate by reference to cognitive theory, and discuss the potential consequences of constructing and utilizing black-and-white images. I argue that the EU risked being caught in rhetorical traps by describing itself in overly altruistic terms, thereby giving its counterparts argumentative advantages. NGOs, on the other hand, lost some of their possibilities of influencing EU policy by taking a totally confrontational stance.

  18. A century of oilfield operations and earthquakes in the greater Los Angeles Basin, southern California

    Science.gov (United States)

    Hauksson, Egill; Goebel, Thomas; Ampuero, Jean-Paul; Cochran, Elizabeth S.

    2015-01-01

    Most of the seismicity in the Los Angeles Basin (LA Basin) occurs at depth below the sediments and is caused by transpressional tectonics related to the big bend in the San Andreas fault. However, some of the seismicity could be associated with fluid extraction or injection in oil fields that have been in production for almost a century and cover ∼ 17% of the basin. In a recent study, first the influence of industry operations was evaluated by analyzing seismicity characteristics, including normalized seismicity rates, focal depths, and b-values, but no significant difference was found in seismicity characteristics inside and outside the oil fields. In addition, to identify possible temporal correlations, the seismicity and available monthly fluid extraction and injection volumes since 1977 were analyzed. Second, the production and deformation history of the Wilmington oil field were used to evaluate whether other oil fields are likely to experience similar surface deformation in the future. Third, the maximum earthquake magnitudes of events within the perimeters of the oil fields were analyzed to see whether they correlate with total net injected volumes, as suggested by previous studies. Similarly, maximum magnitudes were examined to see whether they exhibit an increase with net extraction volume. Overall, no obvious previously unidentified induced earthquakes were found, and the management of balanced production and injection of fluids appears to reduce the risk of induced-earthquake activity in the oil fields.

  19. Diurnal tracking of anthropogenic CO2 emissions in the Los Angeles basin megacity during spring 2010

    Directory of Open Access Journals (Sweden)

    S. Newman

    2013-04-01

    Full Text Available Attributing observed CO2 variations to human or natural cause is critical to deducing and tracking emissions from observations. We have used in situ CO2, CO, and planetary boundary layer height (PBLH measurements recorded during the CalNex-LA (CARB et al., 2008 ground campaign of 15 May–15 June 2010, in Pasadena, CA, to deduce the diurnally varying anthropogenic component of observed CO2 in the megacity of Los Angeles (LA. This affordable and simple technique, validated by carbon isotope observations and WRF-STILT (Weather Research and Forecasting model – Stochastic Time-Inverted Lagrangian Transport model predictions, is shown to robustly attribute observed CO2 variation to anthropogenic or biogenic origin over the entire diurnal cycle. During CalNex-LA, local fossil fuel combustion contributed up to ~50% of the observed CO2 enhancement overnight, and ~100% of the enhancement near midday. This suggests that sufficiently accurate total column CO2 observations recorded near midday, such as those from the GOSAT or OCO-2 satellites, can potentially be used to track anthropogenic emissions from the LA megacity.

  20. The largest subsea hot tap (future tap flange) at Angel Field, Australia

    Energy Technology Data Exchange (ETDEWEB)

    Lad, Deepak; Drysdale, Colin [T.D. Williamson (United States); Naidoo, Sashie [T.D. Williamson (Australia)

    2008-07-01

    A subsea hot tap was conducted near the gas production platforms in Angel Field, Australia in September 2007 and verified as the largest no. 900 subsea hot tap by Australian authorities. This paper outlines the subsea tapping process, risks and safety issues in deep water environment, including the need to ensure 100% system accuracy and that the machine fluids used to operate the subsea tapping machines were environmentally friendly. The testing phase included land and water testing. In the land tests, issues relating to metal hardness, temperature, pressure and ocean currents that affected machine stability, torque and cutting rate were considered. All preliminary design and testing focused on being able to mount the tapping machine to a pre-existing hot-tap flange and conduct the tapping operation, start to finish, preferably without changing the cutter. The water depth tests took place inside a pressurized, underwater hyperbaric chamber. The equipment repeated the land testing process in conditions duplicating that of the actual project site. Timing was also measured in multiple climatic conditions (except water depth) to obtain an estimation of various scenarios. The field tapping process was conducted without problems in over six hours with a single cutter and without any stalls. (author)

  1. Development of Multi-Disciplinary Finite Element Method Analysis Courses at California State University, Los Angeles

    Science.gov (United States)

    McKinney, John; Wu, Chivey

    1998-01-01

    The NASA Dryden Flight Research Center (DFRC) Partnership Awards Grant to California State University, Los Angeles (CSULA) has two primary goals that help to achieve NASA objectives. The overall objectives of the NASA Partnership Awards are to create opportunities for joint University NASA/Government sponsored research and related activities. One of the goals of the grant is to have university faculty researchers participate and contribute to the development of NASA technology that supports NASA goals for research and development (R&D) in Aeronautics and Astronautics. The other goal is technology transfer in the other direction, where NASA developed technology is made available to the general public and more specifically, targeted to industries that can profit from utilization of government developed technology. This years NASA Dryden Partnership Awards grant to CSULA entitled, "Computer Simulation of Multi-Disciplinary Engineering Systems", has two major tasks that satisfy overall NASA objectives. The first task conducts basic and applied research that contributes to technology development at the Dryden Flight Research Center. The second part of the grant provides for dissemination of NASA developed technology, by using the teaching environment created in the CSULA classroom. The second task and how this is accomplished is the topic of this paper. The NASA STARS (Structural Analysis Routines) computer simulation program is used at the Dryden center to support flight testing of high-performance experimental aircraft and to conduct research and development of new and advanced Aerospace technology.

  2. Toward a nitrous oxide budget for a global megacity: Los Angeles, California (Invited)

    Science.gov (United States)

    Townsend-Small, A.

    2013-12-01

    Nitrous oxide is a powerful greenhouse gas (nearly 300 times as powerful as carbon dioxide) and one of the major anthropogenic ozone depleting chemicals in the atmosphere. The strong global warming potential makes it a good target for greenhouse gas emissions reductions. But although the major anthropogenic source of nitrous oxide globally is from fertilized agricultural soils, only a very few studies have attempted a regional nitrous oxide budget. Here we present a synthesis of several recent efforts to constrain nitrous oxide emissions from terrestrial soils, wastewater treatment plants, and the coastal ocean in the Los Angeles, California metro area, home to ~13 million residents. Landscaped soils such as lawns and athletic fields emit nitrous oxide at approximately the same rate as agricultural soils in the region, ~ 200 mg N m-2 yr-1. Wastewater recycling to conserve water resources in this arid region emits nitrous oxide at rates about 3 times higher than traditional carbon oxidation of wastewater, making water reclamation the dominant anthropogenic source in the region. However, we also estimated efflux of nitrous oxide from the coastal ocean using surface concentrations and estimates of wind-driven mixing, and we found that marine emissions may be up to 10 times higher than anthropogenic sources. We also measured stable isotopic composition (N-15 and O-18) of nitrous oxide from all of these sources, and we will present the implications of these and our emission rate data for top-down monitoring of regional nitrous oxide sources.

  3. Measuring and modeling air exchange rates inside taxi cabs in Los Angeles, California

    Science.gov (United States)

    Shu, Shi; Yu, Nu; Wang, Yueyan; Zhu, Yifang

    2015-12-01

    Air exchange rates (AERs) have a direct impact on traffic-related air pollutant (TRAP) levels inside vehicles. Taxi drivers are occupationally exposed to TRAP on a daily basis, yet there is limited measurement of AERs in taxi cabs. To fill this gap, AERs were quantified in 22 representative Los Angeles taxi cabs including 10 Prius, 5 Crown Victoria, 3 Camry, 3 Caravan, and 1 Uplander under realistic driving (RD) conditions. To further study the impacts of window position and ventilation settings on taxi AERs, additional tests were conducted on 14 taxis with windows closed (WC) and on the other 8 taxis with not only windows closed but also medium fan speed (WC-MFS) under outdoor air mode. Under RD conditions, the AERs in all 22 cabs had a mean of 63 h-1 with a median of 38 h-1. Similar AERs were observed under WC condition when compared to those measured under RD condition. Under WC-MFS condition, AERs were significantly increased in all taxi cabs, when compared with those measured under RD condition. A General Estimating Equation (GEE) model was developed and the modeling results showed that vehicle model was a significant factor in determining the AERs in taxi cabs under RD condition. Driving speed and car age were positively associated with AERs but not statistically significant. Overall, AERs measured in taxi cabs were much higher than typical AERs people usually encounter in indoor environments such as homes, offices, and even regular passenger vehicles.

  4. Urban Infestation Patterns of Argentine Ants, Linepithema humile, in Los Angeles

    Directory of Open Access Journals (Sweden)

    Smadar Gilboa

    2012-01-01

    Full Text Available Infestations of buildings by Argentine ants, Linepithema humile (Mayr, were monitored on the campus of the University of California, Los Angeles. Foraging ant activity peaked during the hotter months of the year. The mean monthly maximum temperature, but not rainfall, positively correlated with indoor infestation frequency. Neither garden size nor the predominant groundcover vegetation correlated with the number of foraging ants at baits within gardens. Although the number of foraging ants outside a building varied over 40-fold, ant density in gardens did not predict the likelihood of infestation within the building. Also, the type of vegetative groundcover employed did not predict infestation frequency. There was, however, a significant negative relationship between the size of the garden outside of a building and the number of infestations. Given the large foraging area of L. humile workers, buildings next to small gardens may be infested simply because they lie within the “normal” foraging area of a colony. The best predictor of which rooms were infested within buildings was the presence of a water source. Thus providing water for ant colonies outside and away from buildings may be one method of integrated pest management to reduce the proclivity of ants to infest structures.

  5. Hurdles or walls? Nativity, citizenship, legal status and Latino homeownership in Los Angeles.

    Science.gov (United States)

    McConnell, Eileen Díaz

    2015-09-01

    Homeownership is directly and indirectly linked with many positive child, adult, and community-level outcomes. Prior research offers strong evidence that nativity and immigrants' citizenship status shapes U.S. homeownership, but relatively little work has explored how immigrants' legal status is connected with homeownership. This study draws from locational attainment and classic assimilation theories to develop hypotheses about sources of intra-Latino heterogeneity in homeownership. Los Angeles Family and Neighborhood Survey data are used to contrast four distinct groups of Latinos: U.S. born natives, naturalized citizens, authorized non-citizens, and unauthorized non-citizens. Logistic regression results indicate baseline and residual variation in Latino homeownership based on immigrant citizenship and legal status. Of these, unauthorized non-citizens are the least likely to own their home. The results provide support for all three theoretical models, particularly the place stratification perspective. The results also point to the need for more housing studies that jointly examine citizenship and legal status. PMID:26188435

  6. Elements in fish of Malibu Creek and Malibu Lagoon near Los Angeles, California

    International Nuclear Information System (INIS)

    Our aim was to assess whether past discharges from a wastewater treatment plant increased metal pollutant loads in stream mobile species in a one-day baseline sampling study that included a coastal wetland. Mosquitofish (Gambusia affinis) of two sizes, black bullhead (Ameiurus melas), and crayfish (Pacifastacus leniusculus) were collected from Malibu Creek, and California killifish (Fundulus parvipinnis) of three sizes, as well as arroyo chub (Gila orcutti) were sampled from Malibu Lagoon near Los Angeles, California. Species from each locality were pooled by length, homogenized, digested by microwave wet ashing, and analyzed by simultaneous inductively coupled plasma atomic emission spectroscopy for 27 elements. Lagoon killifish 2.0-3.5 cm long contained levels of arsenic and lead above the levels for 95% of California fish, the EDL95. Black bullhead upstream of the discharge contained elevated levels of As, Cr and Se. Young mosquitofish <3 cm in length upstream of the discharge differed greatly in the order of abundance of their elements relative to larger mosquitofish and to other species collected. More sampling than this baseline study allowed was needed to determine if the wastewater treatment plant was a pollution source

  7. Interseismic Strain Accumulation in Metropolitan Los Angeles Distinguished from Oil and Water management using InSAR and GPS

    Science.gov (United States)

    Argus, D. F.; Agram, P. S.; Rollins, C.; Avouac, J. P.; Barbot, S.

    2015-12-01

    Thesis.InSAR measurements from 1992 to 2012 are detecting deformation due to oil pumping and groundwater changes throughout metropolitan Los Angeles. This is allowing elastic strain build up on blind thrusts beneath the city to be accurately evaluated using GPS. Oil Fields.Pumping and repressurization of oil fields have generated substantial displacement in metropolitan Los Angeles, causing Beverly Hills, downtown, and Whittier to subside at 3-10 mm/yr and Santa Fe Springs and La Mirada to rise at 5-9 mm/yr. Aquifers.Displacements of the Santa Ana and San Gabriel Valley aquifers accumulate in response to sustained changes in groundwater over periods of either drought or heavy precipitation. Santa Ana aquifer has subsided nearly 0.1 m in response to lowering of the groundwater level by about 25 m over the past 18 years. Anthropogenic Vs. Tectonic Motion.We are assessing horizontal motions due to changes groundwater using an empirical relationship established on the basis of seasonal oscillations of Santa Ana aquifer. Anthropogenic horizontal motion is estimated to be proportional to the directional gradient in vertical motion inferred with InSAR. We are finding this rough approximation to be quite useful for evaluating deviations of GPS positions from a constant velocity. We are also constructing Mogi models of volume change in oil fields to evaluate GPS deviations. Earthquake Strain Buildup on Blind Thrust Faults.NNE contraction perpendicular to the big restraining bend in the San Andreas fault is fastest not immediately south of the San Andreas in the San Gabriel Mountains, but instead 50 km south of the fault in northern metropolitan Los Angeles. An elastic model of interseismic strain accumulation fit to GPS data and incorporating a 1D approximation of the rheology of the Los Angeles basin indicates the deep segment of the Puente Hills (-upper Elysian Park) Thrust to be slipping at 9 ±2 mm/yr beneath a locking depth of 12 ±5 km. Please see also our

  8. SRTM Stereo Pair with Landsat Overlay: Los Angeles to San Joaquin Valley, California

    Science.gov (United States)

    2000-01-01

    California's topography poses challenges for road builders. Northwest of Los Angeles, deformation of Earth's crust along the Pacific-North American crustal plate boundary has made transportation difficult. Direct connection between metropolitan Los Angeles (image lower left) and California's Central Valley (image top center) through the rugged terrain seen on the left side of this image was long avoided in favor of longer, but easier paths. However, over the last century, three generations of roads have traversed this terrain. The first was 'The Ridge Route', a two-lane road, built in 1915, which followed long winding ridge lines that included 697curves. The second, built in 1933, was to become four-lane U.S. Highway 99. It generally followed widened canyon bottoms. The third is the current eight lane Interstate 5 freeway, built in the 1960s, which is generally notched into hillsides, but also includes a stretch of several miles where the two directions of travel are widely separated and driving is 'on the left', a rarity in the United States. Such an unusual highway configuration was necessary in order to optimize the road grades for uphill and downhill traffic in this topographically challenging setting.This stereoscopic image was generated by draping a Landsat satellite image over a preliminary SRTM elevation model. Two differing perspectives were then calculated, one for each eye. They can be seen in 3-D by viewing the left image with the right eye and the right image with the left eye (cross-eyed viewing), or by downloading and printing the image pair, and viewing them with a stereoscope. When stereoscopically merged, the result is a vertically exaggerated view of the Earth's surface in its full three dimensions. Landsat has been providing visible and infrared views of the Earth since 1972. SRTM elevation data matches the 30 meter resolution of most Landsat images and will substantially help in analyses of the large and growing Landsat image archive

  9. Geologic map database of the El Mirage Lake area, San Bernardino and Los Angeles Counties, California

    Science.gov (United States)

    Miller, David M.; Bedford, David R.

    2000-01-01

    This geologic map database for the El Mirage Lake area describes geologic materials for the dry lake, parts of the adjacent Shadow Mountains and Adobe Mountain, and much of the piedmont extending south from the lake upward toward the San Gabriel Mountains. This area lies within the western Mojave Desert of San Bernardino and Los Angeles Counties, southeastern California. The area is traversed by a few paved highways that service the community of El Mirage, and by numerous dirt roads that lead to outlying properties. An off-highway vehicle area established by the Bureau of Land Management encompasses the dry lake and much of the land north and east of the lake. The physiography of the area consists of the dry lake, flanking mud and sand flats and alluvial piedmonts, and a few sharp craggy mountains. This digital geologic map database, intended for use at 1:24,000-scale, describes and portrays the rock units and surficial deposits of the El Mirage Lake area. The map database was prepared to aid in a water-resource assessment of the area by providing surface geologic information with which deepergroundwater-bearing units may be understood. The area mapped covers the Shadow Mountains SE and parts of the Shadow Mountains, Adobe Mountain, and El Mirage 7.5-minute quadrangles. The map includes detailed geology of surface and bedrock deposits, which represent a significant update from previous bedrock geologic maps by Dibblee (1960) and Troxel and Gunderson (1970), and the surficial geologic map of Ponti and Burke (1980); it incorporates a fringe of the detailed bedrock mapping in the Shadow Mountains by Martin (1992). The map data were assembled as a digital database using ARC/INFO to enable wider applications than traditional paper-product geologic maps and to provide for efficient meshing with other digital data bases prepared by the U.S. Geological Survey's Southern California Areal Mapping Project.

  10. Multi-pollutant exposure profiles associated with term low birth weight in Los Angeles County.

    Science.gov (United States)

    Coker, Eric; Liverani, Silvia; Ghosh, Jo Kay; Jerrett, Michael; Beckerman, Bernardo; Li, Arthur; Ritz, Beate; Molitor, John

    2016-05-01

    Research indicates that multiple outdoor air pollutants and adverse neighborhood conditions are spatially correlated. Yet health risks associated with concurrent exposure to air pollution mixtures and clustered neighborhood factors remain underexplored. Statistical models to assess the health effects from pollutant mixtures remain limited, due to problems of collinearity between pollutants and area-level covariates, and increases in covariate dimensionality. Here we identify pollutant exposure profiles and neighborhood contextual profiles within Los Angeles (LA) County. We then relate these profiles with term low birth weight (TLBW). We used land use regression to estimate NO2, NO, and PM2.5 concentrations averaged over census block groups to generate pollutant exposure profile clusters and census block group-level contextual profile clusters, using a Bayesian profile regression method. Pollutant profile cluster risk estimation was implemented using a multilevel hierarchical model, adjusting for individual-level covariates, contextual profile cluster random effects, and modeling of spatially structured and unstructured residual error. Our analysis found 13 clusters of pollutant exposure profiles. Correlations between study pollutants varied widely across the 13 pollutant clusters. Pollutant clusters with elevated NO2, NO, and PM2.5 concentrations exhibited increased log odds of TLBW, and those with low PM2.5, NO2, and NO concentrations showed lower log odds of TLBW. The spatial patterning of pollutant cluster effects on TLBW, combined with between-pollutant correlations within pollutant clusters, imply that traffic-related primary pollutants influence pollutant cluster TLBW risks. Furthermore, contextual clusters with the greatest log odds of TLBW had more adverse neighborhood socioeconomic, demographic, and housing conditions. Our data indicate that, while the spatial patterning of high-risk multiple pollutant clusters largely overlaps with adverse contextual

  11. Redefining the angel in the house: Evelyn Everett-Green and the historical novel for girls.

    Science.gov (United States)

    Skelding, H

    2001-01-01

    The article reassesses the work of Victorian girls' fiction author, Evelyn Everett-Green. Her position as a writer of historical fiction for a juvenile female market has led most critics to dismiss her as an apologist for an oppressive order, the girls' historical romance genre being perceived as one which validates "traditional", restrictive, domestic-oriented versions of femininity by demonstrating that they have long-established historical precedents. The author questions these assertions by focusing upon Everett-Green's depiction of matriarchal figures and authority in many of her historical works. The author suggests that Everett-Green depicts her matriarchs as types of "universal mothers", capable of rejuvenating a bigoted and selfish patriarchal society by exerting an explicitly feminine/maternal power. In addition, these women are depicted as the possessors of real economic and political power, which originates from within the domestic sphere but extends far beyond its confines. The article sets her works within the context of late nineteenth- and early twentieth-century women historians, whose work represents a similar attempt to redefine the women's domestic role and reclaim for women a more vital role within history. It also suggests parallels between Everett-Green's imaging of woman as a type of "universal mother" and the use of similar figures which emerge from the work of Virginia Woolf and the ideas of late nineteenth-century feminists. The suggestion is that Everett-Green's historical works responded to a contemporary climate of opinion which perceived society as degenerate and saw the woman's loss of matriarchal power, whereby she had declined from the potentially all powerful "universal mother" of the past to the restricted, passive "angel in the house", as a symptom of this degeneration. PMID:20196240

  12. HIV vaccine acceptability among immigrant Thai residents in Los Angeles: a mixed-method approach.

    Science.gov (United States)

    Lee, Sung-Jae; Brooks, Ronald A; Newman, Peter A; Seiden, Danielle; Sangthong, Rassamee; Duan, Naihua

    2008-11-01

    This study examined HIV vaccine acceptability among immigrant Thai residents in Los Angeles, California. We combined a qualitative research method (focus groups) with an innovative market research method (conjoint analysis). Focus groups explored social issues, concerns, barriers and motivators associated with HIV vaccine acceptability. Conjoint analysis was used to assess preferences among eight hypothetical HIV vaccines with varying attribute profiles and the impact of various attributes on acceptability. Five main themes were identified in the focus groups regarding acceptance and utilization of preventive HIV vaccines: (1) vaccine characteristics, such as efficacy, physical side-effects and cost, (2) fear of a vaccine, (3) vaccine acceptability and optimism, (4) social and family responses and (5) behavioral disinhibition. Conjoint analysis revealed HIV vaccine acceptability ranging from 7.4 (SD = 19.4) to 85.2 (SD = 24.3) across eight hypothetical vaccines. The vaccine with the highest acceptability had the following attributes: 99% efficacy, no side-effects, 10 years of protection, protects against one sub-type, free, one dose and given by injection. Vaccine efficacy had the greatest impact on acceptability (51.4, p=.005), followed by side-effects (11.1, p=.005) and duration of protection (8.3, p=.005). Despite some apprehensions and concerns, Thai residents perceived an HIV vaccine as making an important contribution to society and to protecting oneself and one's family from HIV infection. Nevertheless, acceptability of a partially efficacious vaccine may be low, suggesting the need for tailored social marketing interventions that might emphasize a collectivistic rather than an individualistic focus. Assessing HIV vaccine acceptability using a mixed-method approach is feasible with Thai residents and should lend itself to HIV vaccine research with other Asian Pacific Islander populations in the US. PMID:18608068

  13. Variation in genetic admixture and population structure among Latinos: the Los Angeles Latino eye study (LALES

    Directory of Open Access Journals (Sweden)

    Le Marchand Loic

    2009-11-01

    Full Text Available Abstract Background Population structure and admixture have strong confounding effects on genetic association studies. Discordant frequencies for age-related macular degeneration (AMD risk alleles and for AMD incidence and prevalence rates are reported across different ethnic groups. We examined the genomic ancestry characterizing 538 Latinos drawn from the Los Angeles Latino Eye Study [LALES] as part of an ongoing AMD-association study. To help assess the degree of Native American ancestry inherited by Latino populations we sampled 25 Mayans and 5 Mexican Indians collected through Coriell's Institute. Levels of European, Asian, and African descent in Latinos were inferred through the USC Multiethnic Panel (USC MEP, formed from a sample from the Multiethnic Cohort (MEC study, the Yoruba African samples from HapMap II, the Singapore Chinese Health Study, and a prospective cohort from Shanghai, China. A total of 233 ancestry informative markers were genotyped for 538 LALES Latinos, 30 Native Americans, and 355 USC MEP individuals (African Americans, Japanese, Chinese, European Americans, Latinos, and Native Hawaiians. Sensitivity of ancestry estimates to relative sample size was considered. Results We detected strong evidence for recent population admixture in LALES Latinos. Gradients of increasing Native American background and of correspondingly decreasing European ancestry were observed as a function of birth origin from North to South. The strongest excess of homozygosity, a reflection of recent population admixture, was observed in non-US born Latinos that recently populated the US. A set of 42 SNPs especially informative for distinguishing between Native Americans and Europeans were identified. Conclusion These findings reflect the historic migration patterns of Native Americans and suggest that while the 'Latino' label is used to categorize the entire population, there exists a strong degree of heterogeneity within that population, and that

  14. Trends in Monthly Methane Emissions in Los Angeles Inferred by Mountaintop Remote Sensing Measurements

    Science.gov (United States)

    Wong, C.; Sander, S. P.; Pongetti, T. J.; Yung, Y. L.; Newman, S.; Duren, R. M.; Miller, C. E.; Rao, P.; Gurney, K. R.; Oda, T.

    2015-12-01

    Methane (CH4) is the second most important greenhouse gas and a target of new emissions regulations in the United States. Despite its importance, there are large uncertainties in its emissions. In the megacity of Los Angeles, anthropogenic CH4 is emitted from a variety of sources including wastewater treatment plants, landfills, oil wells, dairy farms and the natural gas infrastructure. To quantify the methane budget in the basin, it is necessary to understand the spatial and temporal variability of the emission patterns. To address this issue, since 2011, continuous daytime mountaintop remote sensing measurements of CH4 and CO2 have been acquired by a JPL-built Fourier Transform Spectrometer (FTS) at the California Laboratory of Atmospheric Remote Sensing (CLARS) on Mount Wilson. At an altitude of 1.67 km a.s.l., the CLARS-FTS samples the dry-air slant column abundances of CH4 and CO2 (XCH4 and XCO2) by targeting 29 reflection points in the L.A. basin, including a reference point at the observatory. Using this unique dataset and tracer-to-tracer correlation analysis, we derive the monthly trends of top-down methane emissions over a period of nearly four years from 2011 to 2015. Consistent strong emission peaks in winter and weaker peaks in summer were observed during this period. We compare our top-down emissions and bottom-up emissions database to understand the drivers of the observed CH4 monthly emission patterns in the basin. Copyright 2015. California Institute of Technology. Government sponsorship acknowledged.

  15. RasGRPs are targets of the anti-cancer agent ingenol-3-angelate.

    Directory of Open Access Journals (Sweden)

    Xiaohua Song

    Full Text Available Ingenol-3-angelate (I3A is a non-tumor promoting phorbol ester-like compound identified in the sap of Euphoria peplus. Similar to tumor promoting phorbol esters, I3A is a diacylglycerol (DAG analogue that binds with high affinity to the C1 domains of PKCs, recruits PKCs to cellular membranes and promotes enzyme activation. Numerous anti-cancer activities have been attributed to I3A and ascribed to I3A's effects on PKCs. We show here that I3A also binds to and activates members of the RasGRP family of Ras activators leading to robust elevation of Ras-GTP and engagement of the Raf-Mek-Erk kinase cascade. In response to I3A, recombinant proteins consisting of GFP fused separately to full-length RasGRP1 and RasGRP3 were rapidly recruited to cell membranes, consistent with direct binding of the compound to RasGRP's C1 domain. In the case of RasGRP3, IA3 treatment led to positive regulatory phosphorylation on T133 and activation of the candidate regulatory kinase PKCδ. I3A treatment of select B non-Hodgkin's lymphoma cell lines resulted in quantitative and qualitative changes in Bcl-2 family member proteins and induction of apoptosis, as previously demonstrated with the DAG analogue bryostatin 1 and its synthetic analogue pico. Our results offer further insights into the anticancer properties of I3A, support the idea that RasGRPs represent potential cancer therapeutic targets along with PKC, and expand the known range of ligands for RasGRP regulation.

  16. Modeling the Spread and Control of the Asian Tiger Mosquito in Los Angeles

    Science.gov (United States)

    Barker, C.; Montecino, D.; Marcantonio, M.

    2015-12-01

    The Asian tiger mosquito, Aedes albopictus, is among the world's most invasive species. Its spread has been facilitated by rapid global transport of cargo and potentially by the warming of climate, and it is now established on every continent except Antarctica. This species represents a "triple threat" to human health, being a day-biting pest, a competent vector of globally important dengue and chikungunya viruses, and a potential bridge vector of several zoonotic arboviruses. As a result of its importance, the biology of Ae. albopictus is also well-studied, but the fine-scale processes by which it becomes established in a given location are poorly understood. This is because even intensive surveillance systems yield limited information during the early phase of invasions when densities are low, and detection often occurs after populations are relatively widespread. Fine-scale spatial models for mosquito dynamics and movement offer a way forward, marrying our understanding of Ae. albopictus biology with surveillance paradigms and detailed data on the real landscapes where invasions occur. This presentation will consider the impacts of climate on the biology of Ae. albopictus and explore their implications for the ongoing invasion and establishment of Ae. albopictus in Los Angeles since 2011. We have used hierarchical modeling to account for heterogeneities in household-level suitability, then we modeled the stochastic dynamics of Ae. albopictus on this landscape using the suitability surface and a temperature-dependent, dynamical model for reproduction and spread. I will discuss the modeling approach and use the model results to answer policy-relevant questions related to our ability to detect and control these highly invasive mosquitoes.

  17. Mapping ground surface deformation using temporarily coherent point SAR interferometry: Application to Los Angeles Basin

    Science.gov (United States)

    Zhang, L.; Lu, Zhiming; Ding, X.; Jung, H.-S.; Feng, G.; Lee, C.-W.

    2012-01-01

    Multi-temporal interferometric synthetic aperture radar (InSAR) is an effective tool to detect long-term seismotectonic motions by reducing the atmospheric artifacts, thereby providing more precise deformation signal. The commonly used approaches such as persistent scatterer InSAR (PSInSAR) and small baseline subset (SBAS) algorithms need to resolve the phase ambiguities in interferogram stacks either by searching a predefined solution space or by sparse phase unwrapping methods; however the efficiency and the success of phase unwrapping cannot be guaranteed. We present here an alternative approach - temporarily coherent point (TCP) InSAR (TCPInSAR) - to estimate the long term deformation rate without the need of phase unwrapping. The proposed approach has a series of innovations including TCP identification, TCP network and TCP least squares estimator. We apply the proposed method to the Los Angeles Basin in southern California where structurally active faults are believed capable of generating damaging earthquakes. The analysis is based on 55 interferograms from 32 ERS-1/2 images acquired during Oct. 1995 and Dec. 2000. To evaluate the performance of TCPInSAR on a small set of observations, a test with half of interferometric pairs is also performed. The retrieved TCPInSAR measurements have been validated by a comparison with GPS observations from Southern California Integrated GPS Network. Our result presents a similar deformation pattern as shown in past InSAR studies but with a smaller average standard deviation (4.6. mm) compared with GPS observations, indicating that TCPInSAR is a promising alternative for efficiently mapping ground deformation even from a relatively smaller set of interferograms. ?? 2011.

  18. Intra-community spatial variability of particulate matter size distributions in southern California/Los Angeles

    Directory of Open Access Journals (Sweden)

    M. Krudysz

    2008-05-01

    Full Text Available Ultrafine particle (UFP number concentrations vary significantly on small spatial and temporal scales due to their short atmospheric lifetimes and multiplicity of sources. To determine UFP exposure gradients within a community, simultaneous particle number concentration measurements at a network of sites are necessary. Concurrent particle size distribution measurements aid in identifying UFP sources, while providing data to investigate local scale effects of both photochemical and physical processes on UFP. From April to December 2007, we monitored particle size distributions at 13 sites within 350 m to 11 km of each other in the vicinity of the Ports of Los Angeles and Long Beach using Scanning Mobility Particle Sizers (SMPS. Typically, three SMPS units were simultaneously deployed and rotated among sites at 1–2 week intervals. Total particle number concentration measurements were conducted continuously at all sites. Seasonal and diurnal size distribution patterns are complex, highly dependent on local meteorology, nearby PM sources, and times of day, and cannot be generalized over the study area nor inferred from one or two sampling locations. Spatial variation in particle number size distributions was assessed by calculating the coefficient of divergence (COD and correlation coefficients (r between site pairs. Results show an overall inverse relationship between particle size and CODs, implying that number concentrations of smaller particles (<40 nm differ from site to site, whereas larger particles tend to have similar concentrations at various sampling locations. In addition, variations in r values as a function of particle size are not necessarily consistent with corresponding COD values, indicating that using results from correlation analysis alone may not accurately assess spatial variability.

  19. Putting in Work: Qualitative Research on Substance Use and Other Risk Behaviors Among Gang Youth in Los Angeles

    Science.gov (United States)

    Sanders, Bill; Lankenau, Stephen E.; Jackson-Bloom, Jennifer

    2011-01-01

    Gang youth are notoriously difficult to access for research purposes. Despite this difficulty, qualitative research about substance use among gang youth is important because research indicates that such youth use more substances than their nongang peers. This manuscript discusses how a small sample of gang youth (n = 60) in Los Angeles was accessed and interviewed during a National Institute of Drug Abuse-funded pilot study on substance use and other risk behaviors. Topics discussed include the rationale and operationalization of the research methodology, working with community-based organizations, and the recruitment of different gang youth with varying levels of substance use. PMID:20222782

  20. Who has housing affordability problems? Disparities in Housing Cost burden by Race, Nativity and Legal Status in Los Angeles

    OpenAIRE

    McConnell, Eileen Diaz

    2013-01-01

    Housing costs are a substantial component of U.S. household expenditures. Those who allocate a large proportion of their income to housing often have to make difficult financial decisions with significant short-term and long-term implications for adults and children. This study employs cross-sectional data from the first wave of the Los Angeles Family and Neighborhood Survey (L.A.FANS) collected between 2000 and 2002 to examine the most common U.S. standard of housing affordability, the likel...

  1. Access to and Use of Health Care Services Among Latinos in East Los Angeles and Boyle Heights.

    Science.gov (United States)

    Alcalá, Héctor E; Albert, Stephanie L; Trabanino, Shawn K; Garcia, Rosa-Elena; Glik, Deborah C; Prelip, Michael L; Ortega, Alexander N

    2016-01-01

    This study examined differences in access, utilization, and barriers to health care by nativity, language spoken at home, and insurance status in East Los Angeles and Boyle Heights, California. Data from household interviews of neighborhood residents conducted as part of a corner store intervention project were used. Binary and multinomial logistic regression models were fitted. Results showed that uninsured and foreign-born individuals were differentially affected by lack of access to and utilization of health care. While the Affordable Care Act may ameliorate some disparities, the impact will be limited because of the exclusion of key groups, like the undocumented, from benefits. PMID:26605956

  2. Water Quality Assessment of the Los Angeles River Watershed, California, USA in Wet and Dry Weather Periods

    Science.gov (United States)

    Rezaie Boroon, M. H.; Von L Coo, C.

    2015-12-01

    The purpose of this study is to identify sources of potential pollutants and characterize urban water quality along the Los Angeles River from its head to the mouth during dry and wet weather periods. Los Angeles (LA) River flows through heavily populated urbanized area in the Los Angeles downtown. The LA River is an effluent-dominated water body during the dry season. The three waste water treatment plants (WWTP) including the Tillman, Burbank, and Glendale discharge the majority of the volume flowing in the LA River during the dry and wet period. The concentration values (ppm) for anions in the dry season ranging 5.5-16,027 (Cl), 0-1.0 (F), 0-21(NO3), 0-1.6 (PO4), and 13.3-2,312 (SO4); whereas the values (ppm) for anions in the wet season ranging 3.4-5,860 (Cl), 0-0.66 (F), 0-17 (NO3), 0-0.67 (PO4), 7.9- 745 (SO4). Dry season concentrations values for trace metals were obtained with values (ppb) ranging 0.9-10 (Ni), 0.8-62 (Zn), 1-4 (As), 0-1 (Pb) and 0-3 (Se). As for wet season trace metals (ppb) ranging 0.001-0.008 (Ni), 0.000001-0.038 (Zn), 0.0016-0.016 (As), 0.00099-0.0058 (Pb), 0.000001-0.0093 (Se). Higher concentrations values during the dry period in the LA River watershed may be attributed to the three WWTPs discharge (75% of the volume of water flowing in the LA River). In water-limited areas such as the Los Angeles basin, urban runoff is a water resource that could enhance restricted water supplies and to enhance localized renewable groundwater resources, thus an assessment of this precious water resource is important for local city and regulatory organizations. In water-limited areas such as the LA basin, urban runoff is a water resource that could enhance restricted water supplies and groundwater resources, thus an assessment of this precious water resource is important for local regulatory organizations.

  3. Hunger In Los Angeles County Affects Over 200,000 Low-Income Adults, Another 560,000 At Risk

    OpenAIRE

    DiSogra, Charles A.; Yen, Wei; Flood, Michael; Ramirez, Anthony

    2004-01-01

    Compiled with data from the 2001 California Health Interview Survey, this study found that more than three-quarters of a million low-income adults in Los Angeles County have a difficult time reliably putting enough food on the table and thus are considered "food insecure." Among these adults, 214,000 suffer from hunger and another 561,000 live at risk for hunger day to day. Most importantly, the study found that food insecurity and hunger are found in all parts of the county. Food insecurity ...

  4. Asian and Latino Immigrants in the Los Angeles Garment Industry: An Exploration of the Relationship Between Capitalism and Racial Oppression

    OpenAIRE

    Bonacich, Edna

    1990-01-01

    The purpose of this paper is to examine how capitalism produces and reproduces racial oppression, by examining the dynamics of one industry in one location:the garment industry in Los Angeles.The L.A. garment industry uses immigrants from Latin America and Asia as workers and contractors. I plan to show how both groups are oppressed by the system, although differentially, by laying out the entire structure of relations in the industry, and the role of immigrants in it.In the course of describ...

  5. Dissecting the Science of 'Angels and Demons' or Antimatter and Other Matters (Vernon W. Hughes Memorial Lecture)

    International Nuclear Information System (INIS)

    Howard Gordon, a physicist from the U.S. Department of Energy's Brookhaven National Laboratory, and local educators will separate the science facts from the science fiction of 'Angels and Demons,' a major motion picture based on Dan Brown's best-selling novel. The film, which opens nationally in theaters today, focuses on a plot to destroy the Vatican using antimatter stolen from the Large Hadron Collider (LHC) at the European particle physics laboratory CERN. Speakers will explain the real science of the LHC, including antimatter - oppositely charged cousins of ordinary matter with intriguing properties.

  6. Effect of different feed types on growth, spawning, hatching and larval survival in angel fish (Pterophyllum scalare Lictenstein, 1823

    Directory of Open Access Journals (Sweden)

    Amin Farahi

    2010-12-01

    Full Text Available In this study effects of commercial extruder diet (T1, earthworm (T2, 50 % commercialextruder diet + 50 % earthworm (T3 on growth, spawning, hatching and larval survival of angel fish(average weight 4.06 g (Pterophyllum scalare Lictenstein, 1823 were investigated. The experimentalgroups were fed for 60 days. According to the results of this study, the best spawning and hatching werefound in group T3 but there was no significant difference with other groups (p>0.05. Also larval survivalrate in group T3 showed significant difference with group T2 (p1 as it showed significant difference withgroup T2 (p<0.05.

  7. Effect of feeding three different formulated feeds having different protein levels on the growth of angel fish (Pterophyllum scalare) juveniles

    OpenAIRE

    S. Kumar; Choudhury, D.; Baruah, K.; Biswal, M; Umesha, D.; N. P. Sahu

    2005-01-01

    Experiment was conducted to study the effect of dietary protein level on growth and nutrient utilization by angel fish (Pterophyllum scalare) juveniles. Fifty-four juveniles (average wt. 2-2.5 g) were equally divided in three treatments with each of three replicates. Three formulated diets with graded protein levels, T1 (35% CP), T2 (40% CP) and T3 (45% CP) were fed to juveniles for 45 days. A trend of higher weight gain %, SGR, FER and PER was found with the increased CP level in the feed. F...

  8. American Views on South Korea’s Economic Development in Los Angeles Times and New York Times, 1970-1974

    OpenAIRE

    Lee Young-gwan

    2011-01-01

    The first half of 1970s was one of the crucial periods to understand the South Korea’s economic success. South Korea achieved great economic success as President Park Chung-hee concentrated his effort to maintain economic development to consolidate his dictatorial power as well as to overcome North Korean threats. Los Angeles Times and New York Times dealt with the issues on the South Korea’s economy with considerable amount of reports. To do so, they helped to provide general views of Americ...

  9. Beat Medusa: The model angelic woman in the first romance novel of Carmen de Icaza. Femininity and traditionalism

    Directory of Open Access Journals (Sweden)

    Miguel Soler Gallo

    2015-12-01

    Full Text Available This paper presents an analysis of the traditional ideal of women in the first romance novel of Carmen de Icaza, a preeminent author in postwar Spanish literature. In the novel, two female models, an angel, representing the protagonist and the idea of traditional femininity, and the monster, who plays the antagonist and reflects the diametrically opposing view of morality to that imposed by the patriarchal society. In this novel Icaza spreads her conservative ideology to the female readers, mostly consumers of this kind of literature in the period after the Spanish Civil War, and emphasizes the values that should prevail in society.

  10. Single oral dose pharmacokinetics of decursin and decursinol angelate in healthy adult men and women.

    Directory of Open Access Journals (Sweden)

    Jinhui Zhang

    Full Text Available The ethanol extract of Angelica gigas Nakai (AGN root has promising anti-cancer and other bioactivities in rodent models. It is currently believed that the pyranocoumarin isomers decursin (D and decursinol angelate (DA contribute to these activities. We and others have documented that D and DA were rapidly converted to decursinol (DOH in rodents. However, our in vitro metabolism studies suggested that D and DA might be metabolized differently in humans. To test this hypothesis and address a key question for human translatability of animal model studies of D and DA or AGN extract, we conducted a single oral dose human pharmacokinetic study of D and DA delivered through an AGN-based dietary supplement Cogni.Q (purchased from Quality of Life Labs, Purchase, NY in twenty healthy subjects, i.e., 10 men and 10 women, each consuming 119 mg D and 77 mg DA from 4 vegicaps. Analyses of plasma samples using UHPLC-MS/MS showed mean time to peak concentration (Tmax of 2.1, 2.4 and 3.3 h and mean peak concentration (Cmax of 5.3, 48.1 and 2,480 nmol/L for D, DA and DOH, respectively. The terminal elimination half-life (t1/2 for D and DA was similar (17.4 and 19.3 h and each was much longer than that of DOH (7.4 h. The mean area under the curve (AUC0-48h for D, DA and DOH was estimated as 37, 335 and 27,579 h∙nmol/L, respectively. Gender-wise, men absorbed the parent compounds faster and took shorter time to reach DOH peak concentration. The human data supported an extensive conversion of D and DA to DOH, even though they metabolized DA slightly slower than rodents. Therefore, the data generated in rodent models concerning anti-cancer efficacy, safety, tissue distribution and pharmacodynamic biomarkers will likely be relevant for human translation.ClinicalTrials.gov NCT02114957.

  11. Seasonal Variations in Fossil Fuel Emissions in the Los Angeles Megacity

    Science.gov (United States)

    Newman, S.; Xu, X.; Kort, E. A.; Miller, C. E.; Sander, S.; Duren, R. M.; Eldering, A.; Yung, Y. L.

    2012-12-01

    Understanding the effects of global warming resulting from increasing CO2 levels in the atmosphere requires understanding the sources and trends of emissions in urban regions, which contribute disproportionately relative to their spatial extent. We report the carbon isotopic composition of CO2 in air collected during mid-afternoon in two locations within the Los Angeles basin of California, Pasadena and Palos Verdes peninsula, for the past 3 (Palos Verdes) - 6.5 (Pasadena) years. Radiocarbon (Δ14C) is the gold standard for distinguishing between CO2 produced by terrestrial biosphere processes and fossil fuel combustion, since the latter contains virtually no 14C, whereas photosynthesis and respiration reflect the modern atmosphere. The stable isotopic composition of carbon in CO2 (δ13C) can be useful in distinguishing petroleum (higher δ13C) from natural gas (lower δ13C) combustion. We observe a significant inverse correlation between the fraction of CO2 from fossil sources at the receptor site of Pasadena, as determined by Δ14C, and the δ13C of the pollutant end member, determined from the Keeling plot intercept. This indicates that the fraction of CO2 emitted by natural gas combustion increases as the fraction of CO2 contributed locally by all fossil fuel burning increases. The proportion of CO2 emitted by fossil fuel combustion was never less than 80% during the study period, and it was occasionally above 100% when the biosphere was a local sink for CO2 during the second quarter of the year. In Palos Verdes, the proportion of fossil fuel combustion in the local emissions was much more varied, ranging from 25 to >100%. The local emissions are inversely correlated at the two sites, reflecting the importance of transport in controlling the signals detected. During the summer, air travels from the ocean over the Los Angles basin to Pasadena, whereas during the winter, wind directions are much more varied, with frequent events from the northeast bringing air of

  12. Chemical evolution of organic aerosol in Los Angeles during the CalNex 2010 study

    Directory of Open Access Journals (Sweden)

    R. Holzinger

    2013-05-01

    Full Text Available During the CalNex study (15 May to 16 June 2010 a large suite of instruments was operated at the Los Angeles area ground supersite to characterize the sources and atmospheric processing of atmospheric pollution. The thermal-desorption proton-transfer-reaction mass-spectrometer (TD-PTR-MS was deployed to an urban area for the first time and detected 691 organic ions in aerosol samples, the mean total concentration of which was estimated as 3.3 μg m−3. Based on comparison to total organic aerosol (OA measurements, we estimate that approximately 50% of the OA mass at this site was directly measured by the TD-PTR-MS. Based on correlations with aerosol mass spectrometer (AMS OA components, the ions were grouped to represent hydrocarbon-like OA (HOA, local OA (LOA, semi-volatile oxygenated OA (SV-OOA, and low volatility oxygenated OA (LV-OOA. Mass spectra and thermograms of the ion groups are mostly consistent with the assumed sources and/or photochemical origin of the OA components. The mass spectra of ions representing the primary components HOA and LOA included the highest m/z, consistent with their higher resistance to thermal decomposition, and they were volatilized at lower temperatures. Photochemical ageing weakens C-C bond strengths (also resulting in chemical fragmentation, and produces species of lower volatility (through the addition of functional groups. Accordingly the mass spectra of ions representing the oxidized OA components (SV-OOA, and LV-OOA lack the highest masses and they are volatilized at higher temperatures. Chemical parameters like mean carbon number (nC, mean carbon oxidation state (OSC, and the atomic ratios O/C and H/C of the ion groups are consistent with the expected sources and photochemical processing of the aerosol components. Our data suggest that chemical fragmentation gains importance over functionalization as photochemical age of OA increases. Surprisingly, the photochemical age of OA decreases during the

  13. Deep Water Compositions From the Los Angeles Basin and the Origin of Formation Water Salinity

    Science.gov (United States)

    Boles, J.; Giles, G.; Lockman, D.

    2005-12-01

    Deep basin formation waters represent original depositional waters that have been modified by diagenetic processes at elevated temperatures and pressures. In addition, they may be diluted by meteoric incursion from elevated structural blocks along basin flanks. It has long been thought that deep basin formation waters have salinities greater than sea water due to various processes like clay membrane filtration or other types of water-rock interaction. However, our work and similar studies in the San Joaquin basin show that formation waters in deep basins are more likely to become diluted rather than concentrated in the absence of soluble evaporite deposits that might underlie the basin. The idea of increased salinity with depth arose from studies in which the underpinning of the basin consisted of soluble evaporate deposits such as the Texas Gulf Coast, Illinois, Michigan, and some North Sea areas. There are very few deep formation water analyses from the Los Angeles Basin. Furthermore, very few of the current produced waters from any depth can be considered pristine because of the widespread formation water injection programs and commingling of fluids from different levels. Here, we describe the first analyses from a deep, previously untouched part of the basin that is currently being developed in the Inglewood Oil Field. We have analyzed a suite of formation waters from the mid-Miocene marine Sentous sandstone from sub-sea level depths of 2250 m to 2625 m at temperatures of about 110 to 126°C and pressures of about 27 MPa. The original depositional waters in the Sentous Formation were sea water whereas the sampled waters are diluted by about 20% from sea water and some show as much as 50% dilution. Based on comparison of oxygen and deuterium isotopes between the meteoric water trend and these waters, we conclude that the smectite to illite dehydration reaction is the major cause of dilution to the original formation water. Other notable differences include

  14. Palaeomagnetic study of the Xitle-Pedregal de San Angel lava flow, southern Basin of Mexico

    Science.gov (United States)

    Urrutia-Fucugauchi, J.

    1996-10-01

    A detailed study of the ˜ 2000 years old Xitle-Pedregal de San Angel volcanic field in the southern Basin of Mexico was undertaken to assess the reliability of the palaeomagnetic record as derived from fresh well-preserved and exposed lava flows. The Xitle vent is on the slope of the Ajusco volcano, which results in a topographic difference of over 800 m in less than 12 km of horizontal distance. Most sites present a mean direction, with a small within-site dispersion, around the dipolar direction for the locality, but some sites, particularly in the basin sector of flat relief away from the vent, show shallow inclinations. Anisotropy of magnetic susceptibility (AMS) shows normal 'flow' fabrics with horizontal foliation planes and small anisotropy degree. AMS lineations correlate with observed flow directions. The magnetic properties vary systematically across flow units, but directions do not show a consistent pattern. Secular variation effects do not apparently contribute to the shallow inclinations or directional scatter. Some lava structures like pressure crests and blocky fronts give shallow inclinations and scattered directions, respectively. The resulting overall mean direction is well defined and close to the dipolar direction ( B = 26, Dec = 359.8°, Inc = 32.8°, k = 167, α95 = 2.2°), but this excludes two apparent directional groups. The mean direction for one group, with B = 19, Dec = 359.0°, Inc = 35.1°, k = 247, α95 = 2.1°, may be the representative estimate for the field. Shallow inclinations are considered anomalous and associated to a characteristic specific to given sectors of lava flows. Palaeointensity determinations have been obtained for six samples from five sites by using the Thellier and Shaw methods. Results agree well with previous studies, however, the standard deviation calculated for the mean value remains high after incorporation of the new data. Mean palaeointensity based on five new determinations and eight early data is N

  15. Source apportionment of ambient particle number concentrations in central Los Angeles using positive matrix factorization (PMF)

    Science.gov (United States)

    Sowlat, Mohammad Hossein; Hasheminassab, Sina; Sioutas, Constantinos

    2016-04-01

    In this study, the positive matrix factorization (PMF) receptor model (version 5.0) was used to identify and quantify major sources contributing to particulate matter (PM) number concentrations, using PM number size distributions in the range of 13 nm to 10 µm combined with several auxiliary variables, including black carbon (BC), elemental and organic carbon (EC/OC), PM mass concentrations, gaseous pollutants, meteorological, and traffic counts data, collected for about 9 months between August 2014 and 2015 in central Los Angeles, CA. Several parameters, including particle number and volume size distribution profiles, profiles of auxiliary variables, contributions of different factors in different seasons to the total number concentrations, diurnal variations of each of the resolved factors in the cold and warm phases, weekday/weekend analysis for each of the resolved factors, and correlation between auxiliary variables and the relative contribution of each of the resolved factors, were used to identify PM sources. A six-factor solution was identified as the optimum for the aforementioned input data. The resolved factors comprised nucleation, traffic 1, traffic 2 (with a larger mode diameter than traffic 1 factor), urban background aerosol, secondary aerosol, and soil/road dust. Traffic sources (1 and 2) were the major contributor to PM number concentrations, collectively making up to above 60 % (60.8-68.4 %) of the total number concentrations during the study period. Their contribution was also significantly higher in the cold phase compared to the warm phase. Nucleation was another major factor significantly contributing to the total number concentrations (an overall contribution of 17 %, ranging from 11.7 to 24 %), with a larger contribution during the warm phase than in the cold phase. The other identified factors were urban background aerosol, secondary aerosol, and soil/road dust, with relative contributions of approximately 12 % (7.4-17.1), 2.1 % (1

  16. Descriptive epidemiology of primary tumors of the brain, cranial nerves and cranial meninges in Los Angeles County.

    Science.gov (United States)

    Preston-Martin, S

    1989-01-01

    This report presents data on the distribution of 8,612 cases of primary tumors of the brain, cranial nerves and cranial meninges (both benign and malignant) diagnosed among residents of Los Angeles County from 1972 to 1985. Incidence rates of gliomas, meningiomas, nerve sheath tumors and all histologic types combined are presented for specific age, sex and ethnic groups. At all ages, the highest incidence is seen for gliomas among men. Meningioma rates are higher among women than men in every ethnic group. In both sexes, glioma rates are highest among whites, and meningioma rates are highest among blacks. Asians have the lowest rates of both types of tumors. Proportional incidence ratios are elevated among those born in Eastern Europe, Southern Europe and the Middle East and among Jewish residents of Los Angeles County. A clear trend of increasing glioma incidence with increasing social class is seen among males. An analysis among white men aged 25-64 by occupation and industry at the time of diagnosis supports several previously published findings. A glioma excess is evident among workers in the aircraft industry. Workers in the petroleum industry and the rubber and plastics industry have an excess of meningiomas. Occupational groups at excess risk include dentists who have an increased risk of all types of brain tumors and electricians whose excess risk is limited to gliomas. PMID:2586698

  17. Restaurant Owners’ Perspectives on a Voluntary Program to Recognize Restaurants for Offering Reduced-Size Portions, Los Angeles County, 2012

    Science.gov (United States)

    Dunning, Lauren; Kuo, Tony; Simon, Paul; Fielding, Jonathan E.

    2014-01-01

    Introduction Reducing the portion size of food and beverages served at restaurants has emerged as a strategy for addressing the obesity epidemic; however, barriers and facilitators to achieving this goal are not well characterized. Methods In fall 2012, the Los Angeles County Department of Public Health conducted semistructured interviews with restaurant owners to better understand contextual factors that may impede or facilitate participation in a voluntary program to recognize restaurants for offering reduced-size portions. Results Interviews were completed with 18 restaurant owners (representing nearly 350 restaurants). Analyses of qualitative data revealed 6 themes related to portion size: 1) perceived customer demand is central to menu planning; 2) multiple portion sizes are already being offered for at least some food items; 3) numerous logistical barriers exist for offering reduced-size portions; 4) restaurant owners have concerns about potential revenue losses from offering reduced-size portions; 5) healthful eating is the responsibility of the customer; and 6) a few owners want to be socially responsible industry leaders. Conclusion A program to recognize restaurants for offering reduced-size portions may be a feasible approach in Los Angeles County. These findings may have applications for jurisdictions interested in engaging restaurants as partners in reducing the obesity epidemic. PMID:24650622

  18. Initialized Fractional Calculus

    Science.gov (United States)

    Lorenzo, Carl F.; Hartley, Tom T.

    2000-01-01

    This paper demonstrates the need for a nonconstant initialization for the fractional calculus and establishes a basic definition set for the initialized fractional differintegral. This definition set allows the formalization of an initialized fractional calculus. Two basis calculi are considered; the Riemann-Liouville and the Grunwald fractional calculi. Two forms of initialization, terminal and side are developed.

  19. The "White Angel": A Wollastonite-Bearing Refractory Inclusion in the Leoville Chondrite

    Science.gov (United States)

    Caillet, C. L. V.; Buseck, P. R.

    1992-07-01

    the detection limit but it reaches 0.15 wt% in Ak-rich melilite. FeO (Ca-Ti-phase found in Essebi by El Goresy et al. (1984) and contains 26.6 to 28.2 wt% TiO2 and probably crystallized late from the CAI. The bulk composition of the inclusion as determined by broad-beam microprobe methods is (in wt%): SiO2 ~ 29.59, Al2O3 ~ 24.65, CaO ~ 39.94, TiO2 ~ 2.02, MgO ~ 3.73, FeO ~ 0.1, MnO+Cr2O3 Ca and Ti and low Al contents together with the textures and mineral chemistry suggest a complex history for this anomalous type-A CAI. The "white angel" presumably represents an ancient condensate from an Al-depleted solar nebula reservoir that was subsequently melted under reducing conditions. References Caillet C., MacPherson G.J. and Zinner E.K. (1992) submitted to Geochim. Cosmochim. Acta. Beckett J.R. and Grossman L. (1986) Lunar and Planet. Sci. (abstract) 17, 36-37. Dowty E. and Clark J.R. (1973) Amer. Mineral. 58, 230-242. El Goresy A., Palme H., Yabuki H., Nagel K., Herrwerth I. and Ramdohr P. (1984) Geochim. Cosmochim. Acta. 48, 2283-2298.

  20. Predicting the effect of climate change on wildfire behavior and initial attack success

    Energy Technology Data Exchange (ETDEWEB)

    Riley, William; Fried, Jeremy S.; Gilless, J. Keith; Riley, William J.; Moody, Tadashi J.; Simon de Blas, Clara; Hayhoe, Katharine; Moritz, Max; Stephens, Scott; Torn, Margaret

    2007-12-01

    This study focused on how climate change-induced effects on weather will translate into changes in wildland fire severity and outcomes in California, particularly on the effectiveness of initial attack at limiting the number of fires that escape initial attack. The results indicate that subtle shifts in fire behavior of the sort that might be induced by the climate changes anticipated for the next century are of sufficient magnitude to generate an appreciable increase in the number of fires that escape initial attack. Such escapes are of considerable importance in wildland fire protection planning, given the high cost to society of a catastrophic escape like those experienced in recent decades in the Berkeley-Oakland, Santa Barbara, San Diego, or Los Angeles areas. However, at least for the three study areas considered, it would appear that relatively modest augmentations to existing firefighting resources might be sufficient to compensate for change-induced changes in wildland fire outcomes.

  1. 2013 NOAA Ortho-rectified Color Mosaic of California: Port of Los Angeles and Long Beach

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains ortho-rectified mosaic tiles, created as a product from the NOAA Integrated Ocean and Coastal Mapping (IOCM) initiative. The source imagery...

  2. Use of the University of California Los Angeles integrated staging system to predict survival in renal cell carcinoma: an international multicenter study.

    NARCIS (Netherlands)

    Patard, J.J.; Kim, H.L.; Lam, J.; Dorey, F.J.; Pantuck, A.J.; Zisman, A.; Ficarra, V.; Han, K.R.; Cindolo, L.; Taille, A. De La; Tostain, J.; Artibani, W.; Dinney, C.P.; Wood, C.G.; Swanson, D.A.; Abbou, C.C.; Lobel, B.; Mulders, P.F.A.; Chopin, D.K.; Figlin, R.A.; Belldegrun, A.S.

    2004-01-01

    PURPOSE: To evaluate ability of the University of California Los Angeles Integrated Staging System (UISS) to stratify patients with localized and metastatic renal cell carcinoma (RCC) into risk groups in an international multicenter study. PATIENTS AND METHODS: 4,202 patients from eight internationa

  3. Diet and obesity in Los Angeles County 2007-2012: Is there a measurable effect of the 2008 "Fast-Food Ban"?

    Science.gov (United States)

    Sturm, Roland; Hattori, Aiko

    2015-05-01

    We evaluate the impact of the "Los Angeles Fast-Food Ban", a zoning regulation that has restricted opening/remodeling of standalone fast-food restaurants in South Los Angeles since 2008. Food retail permits issued after the ban are more often for small food/convenience stores and less often for larger restaurants not part of a chain in South Los Angeles compared to other areas; there are no significant differences in the share of new fast-food chain outlets, other chain restaurants, or large food markets. About 10% of food outlets are new since the regulation, but there is little evidence that the composition has changed differentially across areas. Data from the California Health Interview Survey show that fast-food consumption and overweight/obesity rates have increased from 2007 to 2011/2012 in all areas. The increase in the combined prevalence of overweight and obesity since the ban has been significantly larger in South Los Angeles than elsewhere. A positive development has been a drop in soft drink consumption since 2007, but that drop is of similar magnitude in all areas. PMID:25779774

  4. The Lion and the Lady Revisited: Another Look at the Firing of Mary L. Jones as Los Angeles Public Librarian in 1905.

    Science.gov (United States)

    Wiegand, Wayne A.

    1983-01-01

    Recounts events that led to the firing of Mary L. Jones, Director of Los Angeles Public Library (1905) and caught in public crossfire such figures as the mayor, city council, library board of directors, Charles Lummis (Jones's replacement), Susan B. Anthony, Anna Shaw, Herbert Putnam, and Melvil Dewey. (29 references) (EJS)

  5. Showing Off What We Do and How Well We Do It: Or How the Child Development Center Program at Nine Los Angeles Community Colleges Demonstrates Accountability.

    Science.gov (United States)

    Crummer, Karen; And Others

    Based on on-site review team visits conducted during spring 1982, this report evaluates the Educational Campus Child Development Centers (CCDC's) operating at 9 to the 10 campuses in the Los Angeles Community College District (LACCD). After introducing the evaluation project and its participants, the report outlines the educational philosophy of…

  6. Los Angeles Community College District Campus Child Development Centers' Measures of Effectiveness Project. Second Evaluation Report, Fiscal Year 1983-1984.

    Science.gov (United States)

    Carfagna-Hunt, Karen; And Others

    The Los Angeles Community College District (LACCD) provides a Campus Child Development Center (CCDC) educational program for the preschool children of its college students at all nine of its campuses. In 1983-84, on-site, peer review team visits were conducted to evaluate the centers in terms of their achievement of six program objectives. The…

  7. PERSONAL, INDOOR, AND OUTDOOR CONCENTRATIONS OF PM2.5, PARTICULATE NITRATE, AND ELEMENTAL CARBON FOR INDIVIDUALS WITH COPD IN LOS ANGELES, CA

    Science.gov (United States)

    This study characterizes the personal, indoor, and outdoor concentrations of PM2.5 and the major components of PM2.5, including nitrate (NO3-), elemental carbon (EC), and the elements for individuals with chronic obstructive pulmonary disease (COPD) living in Los Angeles, CA. ...

  8. Los Angeles Seismotectonics: Evidence from Shotgun Seismicity Patterns and the Gridlock of Late Quaternary Faults and Folds

    Science.gov (United States)

    Hauksson, E.; Michael, A.

    2001-12-01

    The high tectonic strain rates in the Los Angeles region are caused by the San Andreas fault to the north that strikes more westerly than the relative plate motion velocity, and secondary effects such as basin formation, and possibly the upper mantle drip beneath the Transverse Ranges. The last 25 years of background seismicity in this region is spatially scattered and cannot easily be associated with the complex network of existing late Quaternary faults or folds. To explain the regionally distributed seismicity and faulting patterns we propose the following model of seismotectonic deformation for the Los Angeles region. First, the regional tectonic strain loading is spread almost uniformly from east to west across the region, causing only minor variations in the loading rate of late Quaternary faults. Second, these late Quaternary faults that have cumulative offsets of at least few kilometers are aseismic during the interseismic period and only accommodate large earthquakes. Third, most of the late Quaternary faults have similar slip rate and are of similar importance for accommodating crustal deformation, and thus have similar repeat times for large earthquakes. Fourth, the background seismicity mostly accommodates secondary deformation associated with geometrical complexities of existing geological structures. In a few cases the background seismicity however, forms halos around the faults suggesting narrow central locked fault zones and an adjacent seismic zone of ongoing buildup of tectonic strain. To refine these patterns of seismicity we have relocated the last 25 years of Los Angeles seismicity using double-difference earthquake location methods to refine hypocenters based on three-dimensional velocity models to obtain high-resolution hypocenters. These DD hypocenters provide improved resolution of seismicity patterns and facilitate improved association between seismicity and late Quaternary faults and active geological structures. The background seismicity

  9. Urban legacies and soil management affect the concentration and speciation of trace metals in Los Angeles community garden soils.

    Science.gov (United States)

    Clarke, Lorraine Weller; Jenerette, G Darrel; Bain, Daniel J

    2015-02-01

    Heavy metals in urban soils can compromise human health, especially in urban gardens, where gardeners may ingest contaminated dust or crops. To identify patterns of urban garden metal contamination, we measured concentrations and bioavailability of Pb, As, and Cd in soils associated with twelve community gardens in Los Angeles County, CA. This included sequential extractions to partition metals among exchangeable, reducible, organic, or residual fractions. Proximity to road increased all metal concentrations, suggesting vehicle emissions sources. Reducible Pb increased with neighborhood age, suggesting leaded paint as a likely pollutant source. Exchangeable Cd and As both increased with road proximity. Only cultivated soils showed an increase in exchangeable As with road proximity, potentially due to reducing humic acid interactions while Cd bioavailability was mitigated by organic matter. Understanding the geochemical phases and metal bioavailability allows incorporation of contamination patterns into urban planning. PMID:25437835

  10. Neuropsychological profiles of victims of financial elder exploitation at the los angeles county elder abuse forensic center.

    Science.gov (United States)

    Wood, Stacey; Rakela, Benjamin; Liu, Pi-Ju; Navarro, Adria E; Bernatz, Susan; Wilber, Kathleen H; Allen, Robin; Homeier, Diana; Homier, Diana

    2014-01-01

    The current article examines neuropsychological correlates of financial elder exploitation in a sample of older adults who have been documented victims of financial elder exploitation. The purpose of this exploratory study was twofold. First, a subsample of the referrals at the Los Angeles County Elder Abuse Forensic Center (LACEAFC) was compared to community dwelling adults in terms of the specific cognitive domains linked to financial capacity including memory, calculation, and executive functioning. Next, the correlation between presence of neuropsychological data and the likelihood of filing a case with the LA County's District Attorney office was examined. Twenty-seven LACEAFC cases and 32 controls were assessed. Overall, the forensic center group performed worse than a community-based age-matched control group on the MMSE, calculation, and executive functioning (ps neuropsychological data was significantly correlated to an increased likelihood of a case being filed. PMID:24848863

  11. Strange little flies in the big city: exotic flower-breeding drosophilidae (Diptera in urban Los Angeles.

    Directory of Open Access Journals (Sweden)

    David Grimaldi

    Full Text Available Urban landscapes are commonly considered too mundane and corrupted to be biotically interesting. Recent insect surveys employing 29 Malaise traps throughout Los Angeles, California, however, have uncovered breeding populations of two unexpected species of one of the most studied and familiar groups of organisms, Drosophila "fruit" flies. Unlike most introduced species of drosophilids, which breed in fresh or decaying fruits, these are specialized flower-breeders. A common species in the survey was Drosophila (Drosophila gentica Wheeler and Takada, previously collected only once, in El Salvador. It belongs to the flavopilosa species group, all species of which have been known until now from central Chile, Argentina and Uruguay, to Veracruz, Mexico and the Caribbean, breeding in flowers of Cestrum ("jessamine" and Sessea (Solanaceae. The Los Angeles populations are probably breeding in a native and/or introduced Cestrum; in addition, populations in San Luis Obispo County were visiting ornamental Cestrum. Drosophila gentica occurs as far north as San Francisco, where it was found breeding in Cestrum aurantiacum. D. gentica is redescribed and figured in detail for diagnostic and identification purposes. Specimens from Jamaica previously identified as D. gentica are a distinct species but are not formally described in lieu of complete male specimens. Rare in the Malaise traps was Drosophila (Sophophora flavohirta Malloch, a common species in Australia on the blossoms of native Myrtaceae, found on introduced Eucalyptus in South Africa and both Eucalyptus and Syzygium in Madagascar; adults feed on myrtaceous pollen and nectar, larvae breed in the flowers. It is also redescribed in detail, including its unusual egg. This is the first New World report of this species; DNA sequences confirm it is a morphologically highly aberrant member of the D. melanogaster species group. This study reveals how intensive field sampling can uncover remarkable

  12. Reconciling Long-Term Trends in Air Quality with Bottom-up Emission Inventories for Los Angeles

    Science.gov (United States)

    Mcdonald, B. C.; Kim, S. W.; Frost, G. J.; Harley, R.; Trainer, M.

    2014-12-01

    Significant long-term changes in air quality have been observed in the United States over several decades. However, reconciling ambient observations with bottom-up emission inventories has proved challenging. In this study, we perform WRF-Chem modeling in the Los Angeles basin for carbon monoxide (CO), nitrogen oxides (NOx), volatile organic compounds (VOCs), and ozone (O3) over a long time period (1987-2010). To improve reconciliation of emission inventories with atmospheric observations, we incorporate new high-resolution emissions maps of a major to dominant source of urban air pollution, motor vehicles. A fuel-based approach is used to estimate motor vehicle emissions utilizing annual fuel sales reports, traffic count data that capture spatial and temporal patterns of vehicle activity, and pollutant emission factors measured from roadway studies performed over the last twenty years. We also update emissions from stationary sources using Continuous Emissions Monitoring Systems (CEMS) data when available, and use emission inventories developed by the South Coast Air Quality Management District (SCAQMD) and California Air Resources Board (ARB) for other important emission source categories. WRF-Chem modeling is performed in three years where field-intensive measurements were made: 1987 (SCAQS: Southern California Air Quality Study), 2002 (ITCT: Intercontinental Transport and Chemical Transformation Study), and 2010 (CALNEX). We assess the ability of the improved bottom-up emissions inventory to predict long-term changes in ambient levels of CO, NOx, and O3, which are known to have occurred over this time period. We also assess changing spatial and temporal patterns of primary (CO and NOx) and secondary (O3) pollutant concentrations across the Los Angeles basin, which has important implications on human health.

  13. Model for small-scale crustal heterogeneity in Los Angeles basin based on inversion of sonic log data

    Science.gov (United States)

    Savran, W. H.; Olsen, K. B.

    2016-05-01

    High-frequency seismic ground motion (10+ Hz), as needed for earthquake engineering design purposes, is largely controlled by the metre-scale structure of the earth's crust. However, the state-of-the-art velocity models poorly resolve small-scale features of the subsurface velocity and density variation. We invert 35 sonic logs (up to 3000 m in depth) in and near Los Angeles basin, CA, to obtain a statistical description of the small-scale heterogeneities of the basin. Assuming a von Karman autocorrelation function, our analysis finds that Hurst numbers, ν, between 0.0 and 0.2, vertical correlation lengths, az, of 15-150 m and standard deviations of about 5 per cent characterize the variability in the borehole data. We report average parameters for Los Angeles basin of ν = 0.064 (0.058, 0.069) ± 0.01 (0.006, 0.012) and az = 54 (51.1, 57.6) ± 5.9 (1.79, 9.53) m with 95 per cent confidence intervals listed in the parentheses. Despite the large depth range of the logs, there is no significant variation of the statistical parameters with depth. Our analysis of 371 depth-averaged shear wave velocities in the upper 30 m, Vs30, provides only an upper bound of basin scale-length estimates due to the coarse sampling distance, with a Hurst number of about 0.3 and lateral correlation lengths, ax, of 5-10 km.

  14. Diurnal and seasonal trends in the apparent density of ambient fine and coarse particles in Los Angeles

    International Nuclear Information System (INIS)

    Diurnal and seasonal variations in the apparent density of ambient fine and coarse particulate matter (PM2.5 and CPM [PM2.5–10], respectively) were investigated in a location near downtown Los Angeles. The apparent densities, determined by particle mass-to-volume ratios, showed strong diurnal and seasonal variations, with higher values during the warm phase (June to August 2013) compared to cold phase (November 2012 to February 2013). PM2.5 apparent density showed minima during the morning and afternoon rush hours of the cold phase (1.20 g cm−3), mainly due to the increased contribution of traffic-emitted soot particles, and highest values were found during the midday in the warm phase (2.38 g cm−3). The lowest CPM apparent density was observed during the morning rush hours of the cold phase (1.41 g cm−3), while highest in early afternoon during the warm phase (2.91 g cm−3), most likely due to the increased wind-induced resuspension of road dust. - Highlights: • Hourly apparent density of ambient fine and coarse PM was measured in Los Angeles. • Apparent densities were higher during the warm season. • PM2.5 apparent density showed minima during the traffic rush hours. • Coarse PM apparent density showed a similar diurnal trend with wind speed in summer. - The apparent density of ambient particles, a direct tracer of chemical composition and morphology, shows strong seasonal and diurnal variability

  15. Hydrologic and Land Surface Modeling of the Semi-Arid Urban Environment: Ballona Creek, Los Angeles, CA

    Science.gov (United States)

    Reyes, B.; Hogue, T. S.; Maxwell, R. M.; Peters-Lidard, C. D.

    2013-12-01

    The objective of this work is to assess and improve the water and energy budgets produced by a coupled hydrologic-land surface model (LSM), ParFlow.CLM (PF.CLM), when applied to an urban semiarid environment, Ballona Creek watershed in Los Angeles, CA, and to compare these results to remotely sensed data. To accomplish this, we have worked with various traditional LSMs within the Land Information System (LIS) framework. These models include the Noah 3.2 LSM and the Community Land Model (CLM) 2. The domain is a 22-km by 22-km square fully encompassing Ballona Creek watershed run at a 1-km spatial resolution for the traditional LSMs and 30-m resolution for PF.CLM at an hourly timestep. To improve modeling of the watershed and represent urban processes, representations of urban irrigation and the storm-drainage network were included in PF.CLM modeling. Comparison datasets of relevant variables were acquired at similar resolutions and timescales and statistically compared to modeling results. These datasets consist of: (1) prior modeling work conducted at a 30-m resolution with the irrigated and non-irrigated Noah Urban Canopy Model (Noah-UCM), in a subset domain of the Ballona Creek watershed near downtown Los Angeles; (2) a historic watershed study of Ballona Creek watershed; and (3) remote sensing products (land surface temperature) obtained from various MODIS and Landsat sensors. The effects of introducing urban processes into land surface and fully distributed, high-resolution hydrologic modeling is assessed and understood.

  16. Foams prepared from whey protein isolate and egg white protein: 2. Changes associated with angel food cake functionality.

    Science.gov (United States)

    Berry, Tristan K; Yang, Xin; Foegeding, E Allen

    2009-06-01

    The effects of sucrose on the physical properties and thermal stability of foams prepared from 10% (w/v) protein solutions of whey protein isolate (WPI), egg white protein (EWP), and their combinations (WPI/EWP) were investigated in wet foams and angel food cakes. Incorporation of 12.8 (w/v) sucrose increased EWP foam stability (drainage 1/2 life) but had little effect on the stability of WPI and WPI/EWP foams. Increased stability was not due to viscosity alone. Sucrose increased interfacial elasticity (E ') of EWP and decreased E' of WPI and WPI/EWP combinations, suggesting that altered interfacial properties increased stability in EWP foams. Although 25% WPI/75% EWP cakes had similar volumes as EWP cakes, cakes containing WPI had larger air cells. Changes during heating showed that EWP foams had network formation starting at 45 degrees C, which was not observed in WPI and WPI/EWP foams. Moreover, in batters, which are foams with additional sugar and flour, a stable foam network was observed from 25 to 85 degrees C for batters made from EWP foams. Batters containing WPI or WPI/EWP mixtures showed signs of destabilization starting at 25 degrees C. These results show that sucrose greatly improved the stability of wet EWP foams and that EWP foams form network structures that remain stable during heating. In contrast, sucrose had minimal effects on stability of WPI and WPI/EWP wet foams, and batters containing these foams showed destabilization prior to heating. Therefore, destabilization processes occurring in the wet foams and during baking account for differences in angel food cake quality. PMID:19646042

  17. Reproductive success and female preference in the amazonian cichlid angel fish, Pterophyllum scalare (Lichtenstein, 1823

    Directory of Open Access Journals (Sweden)

    Maria do Socorro R. F. Cacho

    2006-03-01

    Full Text Available The angel fish, Pterophyllum scalare is a cichlid native to the Amazon Basin of Brazil and is exported as an ornamental fish. In this study the importance of the experience and previous reproductive success of males in mate selection was investigated. In order to investigate reproductive experience, six pairs of males (experienced and inexperienced and six females were used. Males were placed in an aquarium, where one female was released. Mate selection was verified by the time spent by a female near one of the males. To evaluate reproductive success, six pairs of males were tested, each pair consisting of a successful male and an unsuccessful one. Again, time spent with one of the males was considered as an indication of preference by the female. Each female was then paired with an unsuccessful male and their reproductive success was assessed. Females preferred larger, aggressive, territorial and experienced males. Correlations between male aggressiveness, aeration and egg survival were significant. During larval care, male aggressiveness was significantly related to larvae survival. Furthermore, intrabucal care and larval survival showed significant correlations with care provided by the experienced, mated and isolated fish. Survival of offspring resulted from mating with experienced and inexperienced males showed significant differences. Correlations between time spent by females with successful males during reproduction and survival rate of eggs and larvae were significant. Females assess the capacity and willingness of males in investing efforts to raise the offspring through their courtship behavior. Experienced and successful males are preferred by females and thereby achieve greater reproductive success.O acará bandeira, Pterophyllum scalareé um ciclídeo nativo da Bacia Amazônica do Brasil, eé exportado como espécie ornamental. Neste estudo foi investigada a importância da experiência dos machos e do sucesso na reprodu

  18. WRF-UCM Modeling of Urban Land-Atmosphere Interactions with a Focus on Landscape Irrigation in the Los Angeles Metropolitan Area

    Science.gov (United States)

    Vahmani, P.; Hogue, T. S.

    2014-12-01

    Urbanization is a demographic trend worldwide. Urban irrigation can exceed natural precipitation and is an important component of the water cycle in water stressed cities. 14-30% of municipal water consumption in California is used for irrigation. Understanding and quantifying the potential influence of urban anthropogenic soil moisture contribution on local and regional hydrological cycle is an imperative step toward sustainable and better-managed water resources in water scarce regions. In the current study we address the impact and feedback of urban irrigation by integrating a developed irrigation scheme within the coupled framework of the WRF-UCM (Urban Canopy Model) over the Los Angeles metropolitan area at 1 km spatial resolution. We focus on the impacts of irrigation on the urban water cycle and atmospheric feedback during the summer period. Our results demonstrate a significant sensitivity of WRF-UCM simulated surface turbulent fluxes to the incorporation of irrigation. Introducing anthropogenic moisture, the vegetated pixels show increased latent heat fluxes and decreased sensible and ground heat fluxes confirming irrigation induced shift in the energy partitioning toward elevated latent heat fluxes. The evaluation of the model performance against ground-based reference evapotranspiration (ET) observations indicates that WRF-UCM, after adding irrigation, performs reasonably during the course of the simulation, tracking day to day variability of ET. In the absence of irrigation, simulated ET values are significantly underestimated. This is due to fact that soil moisture is the only source of water in the absence of significant precipitation. In the course of model spin up, the moisture sorted in the soil layers is consumed, resulting in considerable decreases in the latent heat fluxes. Evaluating the model outputs against MODIS based land surface temperature illustrates that this ET reduction leads to reduced cooling effects of urban vegetation

  19. Sustainable Agricultural Marketing Initiatives

    OpenAIRE

    Hakan Adanacıoğlu

    2015-01-01

    Sustainable marketing is a holistic approach that puts equal emphasis on environmental, social equity, and economic concerns in the development of marketing strategies. The purpose of the study is to examine and discuss the sustainable agricultural marketing initiatives practiced throughout the World and Turkey, and to put forth suggestions to further improve the performance of agricultural marketing initiatives in Turkey. Some of the sustainable agricultural marketing initiatives practiced a...

  20. Emerging Pathogens Initiative (EPI)

    Data.gov (United States)

    Department of Veterans Affairs — The Emerging Pathogens Initiative (EPI) database contains emerging pathogens information from the local Veterans Affairs Medical Centers (VAMCs). The EPI software...

  1. "Angel's Love" Chinese Goddess Nuwa Culture Large-scale Activities for Public Interests

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    @@ Initiated by Chinese Red Cross Foundation and sponsored by American General Business Association, Chinese Nuwa (a goddess-creator of the Chinese nation) Culture Large-scale Activities for Public Interests undertaken by Beijing Absolute Challenge International Advertising Co., Ltd. has recently commenced in an all-round way. A grand ceremony will be held at Nuwa Plaza in Shexian County, Hebei Province on Septemper 24, 2007.

  2. Sustainable Agricultural Marketing Initiatives

    Directory of Open Access Journals (Sweden)

    Hakan Adanacıoğlu

    2015-07-01

    Full Text Available Sustainable marketing is a holistic approach that puts equal emphasis on environmental, social equity, and economic concerns in the development of marketing strategies. The purpose of the study is to examine and discuss the sustainable agricultural marketing initiatives practiced throughout the World and Turkey, and to put forth suggestions to further improve the performance of agricultural marketing initiatives in Turkey. Some of the sustainable agricultural marketing initiatives practiced around the world are carried out through civil organizations. Furthermore; some of these initiatives have also launched by farmers, consumers, food processors and retailers. The long-term strategies to increase these initiatives should be determined due to the fact that examples of successful sustainable agricultural marketing initiatives are inadequate and cannot be spread in Turkey. In this context, first of all, the supports provided by the government to improve agricultural marketing systems, such as EU funds for rural development should be compatible with the goals of sustainable marketing. For this purpose, it should be examined whether all proposed projects related to agricultural marketing meet the social, economic, and environmental principles of sustainable marketing. It is important that supporting organizations, especially civil society organisations, should take an active role for faster dissemination and adoption of sustainable agricultural marketing practices in Turkey. These organizations may provide technical assistance in preparing successful project proposals and training to farm groups. In addition, the other organizations, such as local administrations, producers' associations, cooperatives, can contribute to the success of sustainable agricultural marketing initiatives. The use of direct marketing strategies and vertical integration attempts in sustainable agricultural marketing initiatives that will likely be implemented in Turkey is

  3. Don't ask, don't tell: patterns of HIV disclosure among HIV positive men who have sex with men with recent STI practising high risk behaviour in Los Angeles and Seattle

    OpenAIRE

    Gorbach, Pamina M.; Galea, J. T.; Amani, Bita; Shin, A; Celum, C; Kerndt, P; Golden, M R

    2004-01-01

    Objectives: A high incidence of HIV continues among men who have sex with men (MSM) in industrialised nations and research indicates many MSM do not disclose their HIV status to sex partners. Themes as to why MSM attending sexually transmitted infection (STI) clinics in Los Angeles and Seattle do and do not disclose their HIV status are identified. Methods: 55 HIV positive MSM (24 in Seattle, 31 in Los Angeles) reporting recent STI or unprotected anal intercourse with a serostatus negative or...

  4. Los Angeles, espace augmenté révélé par un genre littéraire : l’anthologie

    OpenAIRE

    JOSEPH, Charles

    2015-01-01

    Cet article se propose d’explorer l’espace hors-normes de la ville de Los Angeles grâce au genre de l’anthologie et le rapport presque homologique qui se dégage entre ce genre littéraire et le territoire de la mégalopole. Los Angeles est un motif littéraire depuis sa création et elle se donne à lire en romans, autobiographies, journaux, poèmes ou chroniques produites par des auteurs de passages, immigrés ou natifs de ce lieu devenu culturellement emblématique. Espace souvent perçu comme anti-...

  5. Epidemiologic study of neural tube defects in Los Angeles County. I. Prevalence at birth based on multiple sources of case ascertainment

    Energy Technology Data Exchange (ETDEWEB)

    Sever, L.E. (Pacific Northwest Lab., Richland, WA); Sanders, M.; Monsen, R.

    1982-01-01

    Epidemiologic studies of the neural tube defects (NTDs), anencephalus and spina bifida, have for the most part been based on single sources of case ascertainment in past studies. The present investigation attempts total ascertainment of NTD cases in the newborn population of Los Angeles County residents for the period 1966 to 1972. Design of the study, sources of data, and estimates of prevalence rates based on single and multiple sources of case ascertainment are here discussed. Anencephalus cases totaled 448, spina bifida 442, and encephalocele 72, giving prevalence rates of 0.52, 0.51, and 0.08 per 1000 total births, respectively, for these neural tube defects - rates considered to be low. The Los Angeles County prevalence rates are compared with those of other recent North American studies and support is provided for earlier suggestions of low rates on the West Coast.

  6. Climatic influences on the spatial distribution of ecosystem services and costs in the Los Angeles urban forest

    Science.gov (United States)

    McCarthy, H. R.; Pataki, D. E.; Weller, L. T.; Jenerette, G. D.

    2010-12-01

    The spatial distribution of urban ecosystem services (e.g. shading, flowering or provision of food) and costs (such as irrigation) is dependent in part on the biogeography of the species and plant communities of interest. In natural ecosystems, the distribution of plant species and functional types is in large part limited by climatic conditions and the ability of plants to disperse. However, in urban ecosystems many species are planted, and their distribution may depend largely on social factors such as income and neighborhood age. The importance of climatic gradients in these settings is unknown. In order to understand the factors that affect the distribution of urban trees with different functional traits and ecosystem services, urban forest inventories were conducted on >350 plots within the city of Los Angeles. Los Angeles is a city with extreme socioeconomic diversity and a complex history of urban development patterns, as well as a sharp climatic gradient largely influenced by proximity to the coast. Thus, the plots covered a range of neighborhood ages, household incomes, and climates. We found that more moderate climate zones (generally closer to the coast) had a higher proportion of evergreen species and flowering species than warmer, more inland areas. In general, we have found that many of these flowering species have relatively low water use efficiency. In contrast, the distribution of fruiting trees seemed largely related to land use history in this area: the proportion of fruiting trees was highest in areas formerly used for citrus production. There was also a slight trend towards a higher proportion of high water using species in inland areas. This pattern could result in significant water costs, as the combination of intrinsically high water use and high atmospheric demand will compound urban forest water loss in inland areas. Although environmental drivers can be difficult to disentangle from social drivers, our results thus far suggest that

  7. RISK FACTORS FOR FOUR-YEAR INCIDENT VISUAL IMPAIRMENT AND BLINDNESS: THE LOS ANGELES LATINO EYE STUDY

    Science.gov (United States)

    Yonekawa, Yoshihiro; Varma, Rohit; Choudhury, Farzana; Torres, Mina; Azen, Stanley P.

    2016-01-01

    Purpose To identify independent risk factors for incident visual impairment (VI) and monocular blindness. Design Population-based prospective cohort study. Participants 4,658 Latinos aged 40 years in the Los Angeles Latino Eye Study (LALES) Methods A detailed history and comprehensive ophthalmological examination was performed at baseline and at the 4-year follow-up on 4,658 Latinos aged 40 years and older from Los Angeles, California. Incident VI was defined as best corrected visual acuity (BCVA) of 20/200 in the better-seeing eye at the 4 year follow-up examination in persons who had a BCVA of ≥20/40 in the better seeing eye at baseline. Incident monocular blindness was defined as BCVA of ≤20/200 in one eye at follow-up in persons who had a BCVA >20/200 in both eyes at baseline. Socio-demographic and clinical risk factors identified at the baseline interview and examination and associated with incident VI and loss of vision were determined using multivariable regression. Odds ratios (OR) were calculated for those variables that were independently associated with visual impairment and monocular blindness. Main Outcome Measures ORs for various risk factors for incident VI and monocular blindness Results Independent risk factors for incident VI were older age (70–79 years OR=4.8, ≥80 years OR=17.9), being unemployment (OR=3.5), and having diabetes mellitus (OR=2.2). Independent risk factors for monocular blindness were being retired (OR=3.4) or widowed (OR=3.7), having diabetes mellitus (OR=2.1) or any ocular disease (OR=5.6) at baseline. Persons with self-reported excellent/good vision were less likely to develop VI or monocular blindness (OR=0.4–0.5). Conclusion Our data highlight that older Latinos and Latinos with diabetes mellitus or self-reported eye diseases are at high risk of developing vision loss. Furthermore, being unemployed, widowed or retired confers an independent risk of monocular blindness. Interventions that prevent, treat, and focus on

  8. Complex Care Management to Decrease Emergency Department Utilization: A Case Study of the Homeless Patient Aligned Care Team Demonstration Project at VA Greater Los Angeles Healthcare System

    OpenAIRE

    Patel, Beena Ishwar

    2013-01-01

    This quality improvement (QI) dissertation is a case study of the homeless-oriented Patient Centered Medical Home demonstration program, referred to as the Homeless Patient Aligned Care Team (HPACT) at West Los Angeles VA Medical Center (WLA). The WLA HPACT program was implemented to address the complex needs of the homeless and at-risk for homelessness population using the Patient Centered Medical Home model (PCMH) - a multi-disciplinary, team-based approach to primary care. Unlike tradition...

  9. Understanding the Relationship Between the Retail Food Environment Index and Early Childhood Obesity Among WIC Participants in Los Angeles County Using GeoDa

    OpenAIRE

    Koleilat, Maria; Whaley, Shannon E.; Afifi, Abdelmonem A.; Estrada, Leobardo; HARRISON, Gail G

    2012-01-01

    The aim of this study was to examine the association between the local food environment and obesity proportions among 3- to 4-year-old children who were participants in the WIC program in Los Angeles County using spatial analyses techniques. ArcGIS, spatial analysis software, was used to compute the retail food environment index (RFEI) per ZIP code. GeoDa, spatial statistics software was employed to check for spatial autocorrelation and to control for permeability of the boundaries. Linear re...

  10. An exploratory study of Hispanic officer recruiting in the Mexican-American community of South-Central Los Angeles: implications for the officer corps of the future

    OpenAIRE

    Hernandez, Javier

    2003-01-01

    Approved for public release, distribution is unlimited This thesis examines factors relating to youth interest in joining the Navy among the Hispanic population in South-Central Los Angeles, California. The study begins with a comprehensive review of literature on Hispanics of Mexican origin. Informatio on youth interest in the Navy is gleaned from personal interviews with teachers, counselors, JROTC instructors, military recruiters, and local clergy. The results suggest that Hispanic yout...

  11. Mobility, Residential Location, and the American Dream: The Intra-Metropolitan Geography of Minority Homeownership: Los Angeles, Chicago, and Washington D.C.

    OpenAIRE

    Stuart Gabriel; Gary Painter

    2004-01-01

    This paper explicates the intra-metropolitan geography of minority homeownership. In so doing, the analysis applies individual level Census data from the Washington D.C., Chicago, and Los Angeles metropolitan areas to estimate three-level nested logit models (NMNL) of household mobility, residential location, and homeownership tenure choice. The approach is unique to the literature and recognizes that homeownership attainment among minority and white households may vary importantly owing to t...

  12. The University of California at Los Angeles Alzheimer's and Dementia Care program for comprehensive, coordinated, patient-centered care: Preliminary data

    OpenAIRE

    Reuben, DB; Evertson, LC; Wenger, NS; Serrano, K; Chodosh, J; Ercoli, L.; Tan, ZS

    2013-01-01

    Dementia is a chronic disease that requires medical and social services to provide high-quality care and prevent complications. As a result of time constraints in practice, lack of systems-based approaches, and poor integration of community-based organizations (CBOs), the quality of care for dementia is poorer than that for other diseases that affect older persons. The University of California at Los Angeles (UCLA) Alzheimer's and Dementia Care (UCLA ADC) program partners with CBOs to provide...

  13. Examining the Perils and Promises of an Informal Niche in a Global City: A Case Study of Mexican Immigrant Gardeners in Los Angeles

    OpenAIRE

    Huerta, Alvaro

    2011-01-01

    The domestic household service sector of contract gardening dominated by Mexican immigrants in Los Angeles constitutes an important and under-examined component of the city's informal economy. Mexican immigrant gardeners, like Latina domestic workers and Latino day laborers, represent an important and undervalued labor source in this global city and other U.S. cities and suburbs. While domestic help has historically been a privilege of the affluent, the middle-class, since the World War II er...

  14. Homonegativity, Substance Use, Sexual Risk Behaviors, and HIV Status in Poor and Ethnic Men Who Have Sex with Men in Los Angeles

    OpenAIRE

    Shoptaw, Steven; Weiss, Robert E.; Munjas, Brett; Hucks-Ortiz, Christopher; Young, Sean D.; Larkins, Sherry; Victorianne, Gregory D.; Gorbach, Pamina M

    2009-01-01

    This study evaluates associations between internalized homonegativity and demographic factors, drug use behaviors, sexual risk behaviors, and HIV status among men who have sex with men (MSM) and with men and women (MSM/W). Participants were recruited in Los Angeles County using respondent-driven sampling (RDS) and completed the Internalized Homonegativity Inventory (IHNI) and questionnaires on demographic and behavioral factors. Biological samples were tested for HIV and for recent cocaine, m...

  15. Screening the L.A.P.D.: cinematic representations of policing and discourses of law enforcement in Los Angeles, 1948-2003

    OpenAIRE

    Bevan, R

    2011-01-01

    This thesis examines cinematic representations of the L.A.P.D. within the context of discourses of law enforcement in Los Angeles and contends that these feature films constitute a significant strand within such discourse. This contention, which is based upon the various identifiable ways in which the films engage with contemporary issues, acknowledges that the nature of such engagement is constrained by the need to produce a commercially viable fictional entertainment. In four main chronolog...

  16. Pedestrian Areas in Los Angeles: Influence of design features and market area on pedestrian activity. A case study of three commercial strips

    OpenAIRE

    Soto, Manuel Antonio

    2012-01-01

    This thesis examines the spatial, social, and economic aspects of pedestrianism in three active pedestrian areas of Los Angeles to identify the causes of their activity, and to shed light on how these aspects work together to achieve pedestrian vibrancy. Three old commercial strips were selected to reflect a wide range of demographic, socioeconomic, and urban space characteristics; these three cases were analyzed to determine qualitative and quantitative factors that influence pedestrian flo...

  17. Have Section 8 Vouchers Increased Tenant Mobility in Los Angeles? Comparing Locational Distribution of Section 8 Households from 1997 to 2002

    OpenAIRE

    Rafael Yaquian-Illescas

    2004-01-01

    In the 1990s housing mobility became a popular strategy for improving the lives of the poor. That decade, Los Angeles was chosen to participate in the U.S. Department of Housing and Urban Development’s “Moving to Opportunity” demonstration project that encouraged poor persons living in segregated low-income neighborhoods to move to neighborhoods with reduced racial segregation and less concentrated poverty. Congress expanded that program and established the Housing Choice Voucher progr...

  18. Epidemiology, Sexual Risk Behavior, and HIV Prevention Practices of Men who Have Sex with Men Using GRINDR in Los Angeles, California

    OpenAIRE

    Landovitz, Raphael J.; Tseng, Chi-Hong; Weissman, Matthew; Haymer, Michael; Mendenhall, Brett; Rogers, Kathryn; Veniegas, Rosemary; Gorbach, Pamina M.; Reback, Cathy J; Shoptaw, Steven

    2012-01-01

    Young men who have sex with men (YMSM) are at alarming risk for HIV acquisition, demonstrating the highest rates of incident infection of any age-risk group. GRINDR is a global positioning service-based social networking application popular with YMSM for sexual partnering. To assess the characteristics of YMSM who use GRINDR, we conducted a computer-assisted self-interview-based survey of 375 YMSM using GRINDR in metropolitan Los Angeles, recruited using the GRINDR platform. The median age wa...

  19. Improving Bioterrorism Response in Los Angeles County: Helping the UCLA Center for Public Health and Disasters Make a Good Plan Better

    OpenAIRE

    Jeffrey Mitchell; Michael Stajura; Melody Yeh

    2005-01-01

    This Applied Policy Project (APP) focuses on ways to improve response in Los Angeles County (LAC) to a smallpox or plague bioterrorist attack. We are undertaking this study to assist the UCLA Center for Public Health and Disasters (CPHD) with long term planning for this kind of crisis. This APP makes use of publicly available LAC terrorism and emergency plans, academic works, news stories, and forty interviews to thread together how LAC would respond to a smallpox or plague emergency. ...

  20. Economic Redevelopment and the Community Benefits Program: A Case Study of the L.A. Live Project, A Los Angeles Sports and Entertainment District.

    OpenAIRE

    Leland Saito

    2007-01-01

    In Los Angeles, and the United States in general, the defining trend of economic redevelopment projects has been the displacement of low-income communities. Considering this history, the 2001 Community Benefits Program - an agreement between a developer and a coalition of community groups and unions - involving the $2.5 billion L.A. Live Project next to the downtown Staples Center, represents a fundamental change in the relationship among developers, city officials, and community organization...

  1. Airport choice and airline choice in the market for air travel between the San Francisco Bay area and greater Los Angeles in 1995

    OpenAIRE

    Ishii, Jun; Van Dender, Kurt; Jun, Sunyoung

    2005-01-01

    This paper empirically investigates the impact of airport and airline supply characteristics on the air travel choices of passengers departing from one of three San Francisco Bay area airports and arriving at one of four airports in greater Los Angeles. It does so by estimating a conditional logit model for the market of air travel between both metropolitan areas in 1995, and using the estimated model to simulate three counterfactual scenarios. First, reducing access times to San Francisco In...

  2. Effect of different feed types on growth, spawning, hatching and larval survival in angel fish (Pterophyllum scalare Lictenstein, 1823)

    OpenAIRE

    Amin Farahi; Milad Kasiri; Amir Talebi; Mohammad Sudagar

    2010-01-01

    In this study effects of commercial extruder diet (T1), earthworm (T2), 50 % commercialextruder diet + 50 % earthworm (T3) on growth, spawning, hatching and larval survival of angel fish(average weight 4.06 g) (Pterophyllum scalare Lictenstein, 1823) were investigated. The experimentalgroups were fed for 60 days. According to the results of this study, the best spawning and hatching werefound in group T3 but there was no significant difference with other groups (p>0.05). Also larval survivalr...

  3. Prairie Reconstruction Initiative

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The purpose of the Prairie Reconstruction Initiative Advisory Team (PRIAT) is to identify and take steps to resolve uncertainties in the process of prairie...

  4. Nursing Home Quality Initiative

    Data.gov (United States)

    U.S. Department of Health & Human Services — This Nursing Home Quality Initiative (NHQI) website provides consumer and provider information regarding the quality of care in nursing homes. NHQI discusses...

  5. Surgical Critical Care Initiative

    Data.gov (United States)

    Federal Laboratory Consortium — The Surgical Critical Care Initiative (SC2i) is a USU research program established in October 2013 to develop, translate, and validate biology-driven critical care....

  6. Initial external events: floods

    International Nuclear Information System (INIS)

    The initial external event, specifically flood in a Nuclear power plant, and the calculation necessary to determine the contribution of this type of event in a Probabilistic Safety Analysis, are presented. (M.I.)

  7. Quality Initiatives - General Information

    Data.gov (United States)

    U.S. Department of Health & Human Services — CMS has developed a standardized approach for the development of quality measures that it uses in its quality initiatives. Known as the Measures Management System...

  8. The RAS Initiative

    Science.gov (United States)

    NCI established the RAS Initiative to explore innovative approaches for attacking the proteins encoded by mutant forms of RAS genes and to ultimately create effective, new therapies for RAS-related cancers.

  9. Initial Symptoms of ALS

    Science.gov (United States)

    ... Chapters Certified Centers and Clinics Support Groups About ALS About Us Our Research In Your Community Advocate ... Diagnosis En español Symptoms The initial symptoms of ALS can be quite varied in different people. One ...

  10. Piezoelectrically Initiated Pyrotechnic Igniter

    Science.gov (United States)

    Quince, Asia; Dutton, Maureen; Hicks, Robert; Burnham, Karen

    2013-01-01

    This innovation consists of a pyrotechnic initiator and piezoelectric initiation system. The device will be capable of being initiated mechanically; resisting initiation by EMF, RF, and EMI (electromagnetic field, radio frequency, and electromagnetic interference, respectively); and initiating in water environments and space environments. Current devices of this nature are initiated by the mechanical action of a firing pin against a primer. Primers historically are prone to failure. These failures are commonly known as misfires or hang-fires. In many cases, the primer shows the dent where the firing pin struck the primer, but the primer failed to fire. In devices such as "T" handles, which are commonly used to initiate the blowout of canopies, loss of function of the device may result in loss of crew. In devices such as flares or smoke generators, failure can result in failure to spot a downed pilot. The piezoelectrically initiated ignition system consists of a pyrotechnic device that plugs into a mechanical system (activator), which on activation, generates a high-voltage spark. The activator, when released, will strike a stack of electrically linked piezo crystals, generating a high-voltage, low-amperage current that is then conducted to the pyro-initiator. Within the initiator, an electrode releases a spark that passes through a pyrotechnic first-fire mixture, causing it to combust. The combustion of the first-fire initiates a primary pyrotechnic or explosive powder. If used in a "T" handle, the primary would ramp the speed of burn up to the speed of sound, generating a shock wave that would cause a high explosive to go "high order." In a flare or smoke generator, the secondary would produce the heat necessary to ignite the pyrotechnic mixture. The piezo activator subsystem is redundant in that a second stack of crystals would be struck at the same time with the same activation force, doubling the probability of a first strike spark generation. If the first

  11. Supply Chain Initiatives Database

    Energy Technology Data Exchange (ETDEWEB)

    None

    2012-11-01

    The Supply Chain Initiatives Database (SCID) presents innovative approaches to engaging industrial suppliers in efforts to save energy, increase productivity and improve environmental performance. This comprehensive and freely-accessible database was developed by the Institute for Industrial Productivity (IIP). IIP acknowledges Ecofys for their valuable contributions. The database contains case studies searchable according to the types of activities buyers are undertaking to motivate suppliers, target sector, organization leading the initiative, and program or partnership linkages.

  12. Implementing Development Initiatives

    OpenAIRE

    Jamal Khan

    1999-01-01

    Implementation is at the core of all development initiatives and strategies and experience has shown that there exists a gap between formulation and implementation. This paper focuses on the attempts for implementing initiatives for promoting decentralised management and increased participation in developing countries arid identifies the obstacles in the process. It is generally seen that problems of implementation cannot be entirely anticipated and planned for in advance. Also decentralisati...

  13. Choice of initial therapy

    Directory of Open Access Journals (Sweden)

    Manuel Battegay

    2014-11-01

    Full Text Available Current international and national treatment guidelines such as EACS, BHIVA, DHHS or IAS update regularly recommendations on the choice of initial combination antiretroviral treatment (cART regimens. Preferred cART regimens include a backbone with two nucleoside (nucleotide reverse transcriptase inhibitors combined either with one non-nucleoside reverse transcriptase inhibitor or one ritonavir boosted protease inhibitor or more recently one integrase inhibitor. Response rates according to viral load measurements increased in recent years, in particular due to better tolerability. The choice of initial therapy is flexible and influenced by several factors such as height of viral load, genotypic resistance testing, CD4 cell count, co-morbidities, interactions, potential adverse events, (potential for pregnancy, convenience, adherence, costs as well as physician's and patient's preferences. Diverse highly potent initial cART regimens exist. Following the many possibilities, the choice of a regimen is based on a mixture of evidence-informed data and individualized concepts, some of the latter only partly supported by strong evidence. For example, different perceptions and personal experiences exist about boosted protease inhibitors compared to non-nucleoside reverse transcriptase inhibitors or integrase inhibitors and vice versa which may influence the initial choice. This lecture will discuss choices of initial cART in view of international guidelines and the evidence for individualization of initial HIV therapy.

  14. Coastal upwelling linked to toxic Pseudo-nitzschia australis blooms in Los Angeles coastal waters, 2005-2007

    KAUST Repository

    Schnetzer, Astrid

    2013-06-10

    Harmful algal blooms dominated by the diatom Pseudo-nitzschia spp. have become a perennial but variable event within surface waters near the greater Los Angeles area. Toxic blooms during spring seasons from 2005 to 2007 varied strongly in their overall toxicity and duration. Differences in bloom dynamics were linked to differences in storm-induced river discharge following episodic rain events and coastal upwelling, both major coastal processes that led to the injection of nutrients into coastal surface waters. Heavy river runoff during early 2005, a record-rainfall year, favored a phytoplankton community mainly comprised of algal taxa other than Pseudo-nitzschia. The spring bloom during 2005 was associated with low domoic acid surface concentrations and minor contributions of (mainly) P. delicatissima to the diatom assemblage. In contrast, highly toxic P. australis-dominated blooms during spring seasons of 2006 and 2007 were linked to strong upwelling events. River discharge quotas in 2006 and 2007, in contrast to 2005, fell well below annual averages for the region. Surface toxin levels were linked to colder, more saline (i.e. upwelled) water over the 3-year study, but no such consistent relationship between domoic acid levels and other physiochemical parameters, such as macronutrient concentrations or nutrient ratios, was observed. © The Author 2013. Published by Oxford University Press. All rights reserved.

  15. Online molecular characterization of fine particulate matter in Port Angeles, WA: Evidence for a major impact from residential wood smoke

    Science.gov (United States)

    Gaston, Cassandra J.; Lopez-Hilfiker, Felipe D.; Whybrew, Lauren E.; Hadley, Odelle; McNair, Fran; Gao, Honglian; Jaffe, Daniel A.; Thornton, Joel A.

    2016-08-01

    We present on-line molecular composition measurements of wintertime particulate matter (PM) during 2014 using an iodide-adduct high-resolution, time-of-flight chemical ionization mass spectrometer (HR-TOF-CIMS) coupled to a Filter Inlet for Gases and AEROsols (FIGAERO). These measurements were part of an intensive effort to characterize PM in the region with a focus on ultrafine particle sources. The technique was used to detect and quantify different classes of wood burning tracers, including levoglucosan, methoxyphenols, and nitrocatechols, among other compounds in near real-time. During the campaign, particulate mass concentrations of compounds with the same molecular composition as levoglucosan ranged from 0.002 to 19 μg/m3 with a median mass concentration of 0.9 μg/m3. Wood burning markers, in general, showed a strong diurnal pattern peaking at night and in the early morning. This diurnal profile combined with cold, stagnant conditions, wind directions from predominantly residential areas, and observations of lower combustion efficiency at night support residential wood burning as a dominant source of wintertime PM in Port Angeles. This finding has implications for improving wintertime air quality in the region by encouraging the use of high efficiency wood-burning stoves or other cleaner home heating options throughout the relevant domain.

  16. An exploration of the gateway math and science course relationships in the Los Angeles Community College District

    Science.gov (United States)

    Buchanan, Donald G.

    This study evaluated selected demographic, pre-enrollment, and economic status variables in comparison to college-level performance factors of GPA and course completion ratios for gateway math and science courses. The Transfer and Retention of Urban Community College Students (TRUCCS) project team collected survey and enrollment data for this study in the Los Angeles Community College District (LACCD). The TRUCCS team surveyed over 5,000 students within the nine campus district beginning in the fall of 2000 and spring of 2001 with follow-up data for next several years. This study focused on the math and science courses; established background demographics; evaluated pre-enrollment high school self-reported grades; reviewed high school and college level math courses taken; investigated specific gateway courses of biology, chemistry and physics; and compared them to the overall GPAs and course completion ratios for 4,698 students. This involved the SPSS development of numerous statistical products including the data from frequency distributions, means, cross-tabulations, group statistics t-tests, independent samples t-tests, and one-way ANOVA. Findings revealed demographic and economic relationships of significance for students' performance factors of GPA and course completion ratios. Furthermore, findings revealed significant differences between the gender, age, ethnicity and economic employment relationships. Conclusions and implications for institutions of higher education were documented. Recommendations for dissemination, intervention programs, and future research were also discussed.

  17. Risks and benefits of gardening in urban soil; heavy metals and nutrient content in Los Angeles Community Gardens

    Science.gov (United States)

    Clarke, L. W.; Jenerette, D.; Bain, D. J.

    2012-12-01

    The availability of soil nutrients and heavy metals in urban community gardens can influence health of crops and participants. Interactions between garden history, management, and soils are understudied in cities. In July 2011, we collected soil samples from 45 plots at 6 Los Angeles community gardens. For comparison, 3 samples were collected from uncultivated garden soils and 3 more from outside soils. Samples were then tested for major nutrients- Nitrogen(N), Potassium (K), and Phosphorous (P)- and organic matter (SOM). We also measured concentrations of 29 metals in 3 gardens using Inductively Coupled Plasma- Atomic Emission Spectroscopy. Potassium and phosphorus exceeded optimum levels in all plots, with some over twice the maximum recommended levels. Over-fertilized soils may contribute to local watershed pollution and crop micronutrient deficiencies. Low soil SOM was observed in gardens in impoverished neighborhoods, possibly due to low quality amendments. Our metals analysis showed dangerous levels of lead (Pb)-- up to 1700 ppm in outside soils and 150 ppm in garden soils-- near older gardens, indicating lead deposition legacies. California lead safety standards indicate that children should not play near soils with Pb above 200 ppm, indicating need for long term monitoring of lead contaminated gardens. Arsenic (As) levels exceeded federal risk levels (0.3 ppm) and average CA background levels (2 ppm) in all areas, with some gardens exceeding 10 ppm. Heavy metal legacies in gardens may pose risks to participants with prolonged exposure and remediation of soils may be necessary.

  18. Mechanical Degradation of Aggregate by the Los Angeles-, the Micro-Deval- and the Nordic Test Methods

    Science.gov (United States)

    Erichsen, E.; Ulvik, A.; Sævik, K.

    2011-05-01

    The quality of aggregate used as buildings materials is defined by European Standard test methods. According to the agreement within the European Economic Area, each individual country decides test methods of current interest. Among the Nordic countries, the Los Angeles-, micro-Deval- and the Nordic test are the most common methods used to decide the mechanical properties of the aggregate. The three test methods are all drum test where the degradation of the material occur by rotation between the test material and steel balls together with, or without water. The mechanical test methods are empirical and are believed to express either resistance to fragmentation or wearing. The results of this study show that analysing the particle size distribution of a material after the drum testing give indication of which type and degree of degradation the test material is exposed to. Knowledge of the type of degradation for the test methods is important compared to the understanding of the real breakdown of the aggregate for instance used in road construction.

  19. Aerosol Light Absorption and Scattering in Mexico City: Comparison With Las Vegas, NV, and Los Angeles, CA.

    Science.gov (United States)

    Paredes-Miranda, G.; Arnott, W. P.; Gaffney, J. S.; Marley, N. A.; Campbell, D.; Fujita, E.

    2007-12-01

    Aerosol light scattering and absorption measurements were deployed in and near Mexico City in March 2006 as part of the Megacity Impacts on Regional and Global Environments (MIRAGE). The primary site in Mexico City was an urban site at Instituto Mexicano del Petroleo (Mexican Oil Institute, denoted by IMP). Similar campaigns were held in Las Vegas, NV in January-February, 2003; and Los Angeles, CA at numerous sites during all seasons from 2003 through 2007. The IMP site gave in-situ characterization of the Mexico City plume under favorable wind conditions. The photoacoustic instrument (PAS) used at IMP operates at 532 nm, and conveniently allowed for characterization of gaseous absorption at this wavelength as well. Light scattering measurements are accomplished within the PAS by the reciprocal nephelometery method. In Mexico City the aerosol absorption coefficient typically varies between 20 and 180 Mm-1 during the course of the day and significant diurnal variation of the aerosol single scattering albedo was observed probably as a consequence of secondary aerosol formation. We will present the diurnal variation of the scattering and absorption as well as the single scattering albedo and fraction of absorption due to gases at the IMP site and compare with Las Vegas diurnal variation. Mexico City 'breaths' more during the course of the day than Las Vegas, Nevada in part because the latitude of Mexico City resulted in more direct solar radiation. Further insight on the meteorological connections and population dynamics will be discussed.

  20. Urban solar photovoltaics potential: An inventory and modelling study applied to the San Fernando Valley region of Los Angeles

    Science.gov (United States)

    Angelici, G. L.; Bryant, N. A.; Freta, R. K.; Friedman, S. Z.

    1980-01-01

    Procedures for analyzing the potential of solar photovoltaic collectors to meet energy requirements in a metropolitan region are described and a modeling effort is applied to the San Fernando Valley region of Los Angeles. The procedure involves a series of steps designed to produce maps and tabulations revealing the amount of rooftop area available for establishing solar collectors and the proportion of energy requirement that could be potentially supplied by solar photovoltaics within each of the 533 mainline feeder service areas in the study area. For the sixty five square mile study area, the results showed that, with half the available flat and south facing roofs used and assuming the availability of energy storage, 52.7 percent of the actual kWh energy requirements could have been met in 1978 using photovoltaic collectors. Hourly, daily, weekly, and monthly fluctuations in potential supply and actual loads and recommendations of avenues for further research are discussed. Some further potential applications of the modeling technique are suggested.

  1. Parenting and proximity to social services: Lessons from Los Angeles County in the community context of child neglect.

    Science.gov (United States)

    Maguire-Jack, Kathryn; Klein, Sacha

    2015-07-01

    Using a sample of 438 parents in Los Angeles County, CA, this study examines the role of proximity to social services in child neglect. In an extension of social disorganization theory, it seeks to understand the potential sources of support in neighborhoods for families. It uses ordinary least squares regression to examine driving distance from parents' residences to four types of services (child care, domestic violence, mental health/substance abuse, and poverty). The results show an association between proximity to mental health and substance abuse services and parents' self-reported neglectful behaviors. Additionally, higher levels of socioeconomic disadvantage (poverty, unemployment, and low education), having older children, respondents being male, and respondents being older parents are associated with higher levels of child neglect, while being white is associated with lower levels. Overall, the findings suggest a potentially protective role of geographic access to mental health and substance abuse services in child maltreatment. Additional research on the pathways through which proximity to services influences child neglect is needed. PMID:26026359

  2. Filling potholes on the implementation highway: Evaluating the implementation of Parent-Child Interaction Therapy in Los Angeles County.

    Science.gov (United States)

    Timmer, Susan G; Urquiza, Anthony J; Boys, Deanna K; Forte, Lindsay A; Quick-Abdullah, Daphne; Chan, Sam; Gould, William

    2016-03-01

    In October 2012, first 5 LA funded a unique collaboration between Los Angeles County Department of Mental Health (DMH) and UC Davis PCIT Training Center (UCD PCIT) to train county-contracted agencies to provide Parent-Child Interaction Therapy (PCIT). This $20 million dollar, 5-year grant represented the largest implementation effort of an empirically based treatment to date. The purpose of this paper was to describe the first 2 years of the implementation process of this project, beginning with project start up and pre-implementation phases, and to present agency training and client performance outcomes from our first year of training. Results presented in this evaluation suggest that it is possible to train LA County providers in PCIT, and that PCIT is an effective intervention for DMH-contracted providers in LA County. This evaluation also discusses challenges to successful implementation. Barriers to progress included unanticipated delays building county infrastructure, trainee attrition, and insufficient client referrals. We discuss the results of the current implementation with respect to theory, research, and others' training models, with the aim of evaluating and prioritizing different implementation drivers, noting the ongoing competition between knowing what to do and the need for action. PMID:26704299

  3. Who has housing affordability problems? Disparities in Housing Cost burden by Race, Nativity and Legal Status in Los Angeles.

    Science.gov (United States)

    McConnell, Eileen Diaz

    2013-09-01

    Housing costs are a substantial component of U.S. household expenditures. Those who allocate a large proportion of their income to housing often have to make difficult financial decisions with significant short-term and long-term implications for adults and children. This study employs cross-sectional data from the first wave of the Los Angeles Family and Neighborhood Survey (L.A.FANS) collected between 2000 and 2002 to examine the most common U.S. standard of housing affordability, the likelihood of spending thirty percent or more of income on shelter costs. Multivariate analyses of a low-income sample of U.S. born Latinos, Whites, African Americans, authorized Latino immigrants and unauthorized Latino immigrants focus on baseline and persistent differences in the likelihood of being cost burdened by race, nativity and legal status. Nearly half or more of each group of low-income respondents experience housing affordability problems. The results suggest that immigrants' legal status is the primary source of disparities among those examined, with the multivariate analyses revealing large and persistent disparities for unauthorized Latino immigrants relative to most other groups. Moreover, the higher odds of housing cost burden observed for unauthorized immigrants compared with their authorized immigrant counterparts remains substantial, accounting for traditional indicators of immigrant assimilation. These results are consistent with emerging scholarship regarding the role of legal status in shaping immigrant outcomes in the United States. PMID:24077641

  4. Urban nonpoint source pollution buildup and washoff models for simulating storm runoff quality in the Los Angeles County

    International Nuclear Information System (INIS)

    Many urban nonpoint source pollution models utilize pollutant buildup and washoff functions to simulate storm runoff quality of urban catchments. In this paper, two urban pollutant washoff load models are derived using pollutant buildup and washoff functions. The first model assumes that there is no residual pollutant after a storm event while the second one assumes that there is always residual pollutant after each storm event. The developed models are calibrated and verified with observed data from an urban catchment in the Los Angeles County. The application results show that the developed model with consideration of residual pollutant is more capable of simulating nonpoint source pollution from urban storm runoff than that without consideration of residual pollutant. For the study area, residual pollutant should be considered in pollutant buildup and washoff functions for simulating urban nonpoint source pollution when the total runoff volume is less than 30 mm. - Highlights: → An improved urban NPS model was developed. → It performs well in areas where storm events have great temporal variation. → Threshold of total runoff volume for ignoring residual pollutant was determined. - An improved urban NPS model was developed. Threshold of total runoff volume for ignoring residual pollutant was determined.

  5. Urban legacies and soil management affect the concentration and speciation of trace metals in Los Angeles community garden soils

    International Nuclear Information System (INIS)

    Heavy metals in urban soils can compromise human health, especially in urban gardens, where gardeners may ingest contaminated dust or crops. To identify patterns of urban garden metal contamination, we measured concentrations and bioavailability of Pb, As, and Cd in soils associated with twelve community gardens in Los Angeles County, CA. This included sequential extractions to partition metals among exchangeable, reducible, organic, or residual fractions. Proximity to road increased all metal concentrations, suggesting vehicle emissions sources. Reducible Pb increased with neighborhood age, suggesting leaded paint as a likely pollutant source. Exchangeable Cd and As both increased with road proximity. Only cultivated soils showed an increase in exchangeable As with road proximity, potentially due to reducing humic acid interactions while Cd bioavailability was mitigated by organic matter. Understanding the geochemical phases and metal bioavailability allows incorporation of contamination patterns into urban planning. - Highlights: • Road proximity, legacies, and management affect garden soil metal concentrations. • Soil near old houses had high reducible Pb, likely due to lead paint. • Pb, As, and Cd all increased with proximity to road. • As and Cd reacted with organic matter to become more or less bioavailable to crops. - Road proximity, legacies, and management affect garden soil metal concentrations. Soil near old houses had high reducible Pb due to lead paint, while all metals increased near the road

  6. Climate Change Impacts on the Los Angeles Aqueducts Water Sources: 21st Century Hydrologic Projections for Owens Valley and Mono Lake Watershed

    Science.gov (United States)

    Costa-Cabral, M. C.; Roy, S. B.; Maurer, E. P.; Mills, W. B.; Chen, L.

    2011-12-01

    Precipitation from the Eastern Sierra Nevada watersheds of Owens Lake and Mono Lake is one of the main water sources, and the one of highest quality, for Los Angeles' more than 4 million people. Winter snow is stored in the large snowpack reservoir, and meltwater (~0.2-0.5 million acre-feet) is delivered annually to the city in the dry season by the 340-mile long Los Angeles Aqueduct system, operated by the Los Angeles Department of Water and Power. We identify plausible scenarios of future climate conditions in the Owens-Mono watersheds over the 21st century based on CMIP3 results for 16 global climate models (GCMs) statistically downscaled to 1/8° and greenhouse gas emission scenarios A2 and B1; and we evaluate the consequent hydrologic impacts using the Variable Infiltration Capacity (VIC) hydrologic model. Such climate scenarios have large and unquantifiable associated uncertainty and do not represent predictions, but are considered to be plausible under the current state of knowledge. We applied VIC to the Owens-Mono watersheds and calibrated the model using monthly streamflow records provided by LADWP. Of most interest to Los Angeles' water supply are the projections for the snowpack and the dry-season hydrograph that relies on snowmelt. Our results indicate future increases in the fraction of precipitation falling as rain rather than snow, from a historical value of about 20% to 20-30% by mid-century and 28-52% by end of century (depending on the GCM) for scenario A2. As a result, the snowpack's peak snow water equivalent (SWE) is projected to decline by most GCMs. The SWE peak is also projected to shift toward earlier dates (by a few days by mid-century and by a GCM-average of 2 weeks by end of century under emissions scenario A2). The diminished SWE, earlier SWE peak and earlier melt associated with rising temperatures result in earlier hydrograph peaks, a shift in the date marking the passage of half of the year's hydrograph volume (by more than one

  7. Initial state propagators

    CERN Document Server

    Collins, Hael

    2013-01-01

    It is possible to define a general initial state for a quantum field by introducing a contribution to the action defined at an initial-time boundary. The propagator for this theory is composed of two parts, one associated with the free propagation of fields and another produced by the operators of this initial action. The derivation of this propagator is shown for the case of a translationally and rotationally invariant initial state. In addition to being able to treat more general states, these techniques can also be applied to effective field theories that start from an initial time. The eigenstates of a theory with interacting heavy and light fields are different from the eigenstates of the theory in the limit where the interactions vanish. Therefore, a product of states of the noninteracting heavy and light theories will usually contain excitations of the heavier state once the interactions are included. Such excitations appear as nonlocal effects in the effective theory, which are suppressed by powers of...

  8. Initiating events frequency determination

    International Nuclear Information System (INIS)

    The paper describes work performed for the Nuclear Power Station (NPS). Work is related to the periodic initiating events frequency update for the Probabilistic Safety Assessment (PSA). Data for all relevant NPS initiating events (IE) were reviewed. The main focus was on events occurring during most recent operating history (i.e., last four years). The final IE frequencies were estimated by incorporating both NPS experience and nuclear industry experience. Each event was categorized according to NPS individual plant examination (IPE) initiating events grouping approach. For the majority of the IE groups, few, or no events have occurred at the NPS. For those IE groups with few or no NPS events, the final estimate was made by means of a Bayesian update with general nuclear industry values. Exceptions are rare loss-of-coolant-accidents (LOCA) events, where evaluation of engineering aspects is used in order to determine frequency.(author)

  9. International EUREKA: Initialization Segment

    International Nuclear Information System (INIS)

    The Initialization Segment creates the starting description of the uranium market. The starting description includes the international boundaries of trade, the geologic provinces, resources, reserves, production, uranium demand forecasts, and existing market transactions. The Initialization Segment is designed to accept information of various degrees of detail, depending on what is known about each region. It must transform this information into a specific data structure required by the Market Segment of the model, filling in gaps in the information through a predetermined sequence of defaults and built in assumptions. A principal function of the Initialization Segment is to create diagnostic messages indicating any inconsistencies in data and explaining which assumptions were used to organize the data base. This permits the user to manipulate the data base until such time the user is satisfied that all the assumptions used are reasonable and that any inconsistencies are resolved in a satisfactory manner

  10. Stable isotopic indicators of nitrous oxide and methane sources in Los Angeles, California

    Science.gov (United States)

    Townsend-Small, A.; Pataki, D.; Tyler, S.; Trumbore, S.

    2008-12-01

    As urbanization increasingly encroaches upon agricultural landscapes, there are greater potential sources of greenhouse gases and other atmospheric contaminants. Measurements of the isotopic composition of trace gases have the potential to distinguish between pollutant sources and quantify the proportional contribution of agricultural activities to the total atmospheric pool. In this study, we are measuring the isotopic composition of greenhouse gases N2O and CH4 emitted from cropland, animal feeding operations, and urban activities in the South Coast Air Basin in southern California. The ultimate goal of our project is to utilize atmospheric measurements of the isotopic composition of N2O and CH4 combined with studies of source signatures to determine the proportional contributions of cropland, animal operations, and urban sources of greenhouse gases to the atmosphere. Measurements of the δ13C of methane show excellent separation between urban sources, such as vehicle emissions, power plants, oil refineries, landfills, and sewage treatment plants and agricultural sources like cows, biogas, and cattle feedlots. For nitrous oxide, soil N2O sources showed good separation from wastewater treatment facilities using δ15N and δ18O. Within soil N2O sources, the isotopic composition of N2O from cropland soils was similar to N2O emissions from urban turfgrass. These data indicate that nitrification may be as important a source of N2O as denitrification in urban soils. We are also measuring N2O fluxes from soils and from sewage treatment processes, and preliminary data indicate that urban N2O fluxes are higher than initially assumed by managers and regulatory agencies.

  11. Mixed-Initiative Clustering

    Science.gov (United States)

    Huang, Yifen

    2010-01-01

    Mixed-initiative clustering is a task where a user and a machine work collaboratively to analyze a large set of documents. We hypothesize that a user and a machine can both learn better clustering models through enriched communication and interactive learning from each other. The first contribution or this thesis is providing a framework of…

  12. The SEED Initiative

    Science.gov (United States)

    Teich, Carolyn R.

    2011-01-01

    Committed to fulfilling the promise of the green economy, the American Association of Community Colleges (AACC) launched the Sustainability Education and Economic Development (SEED) initiative (www.theseedcenter.org) in October 2010. The project advances sustainability and clean energy workforce development practices at community colleges by…

  13. Clean Energy Manufacturing Initiative

    Energy Technology Data Exchange (ETDEWEB)

    None

    2013-04-01

    The initiative will strategically focus and rally EERE’s clean energy technology offices and Advanced Manufacturing Office around the urgent competitive opportunity for the United States to be the leader in the clean energy manufacturing industries and jobs of today and tomorrow.

  14. Sustaining Participatory Design Initiatives

    DEFF Research Database (Denmark)

    Iversen, Ole Sejer; Dindler, Christian

    2014-01-01

    While many participatory design (PD) projects succeed in establishing new organisational initiatives or creating technology that is attuned to the people affected, the issue of how such results are sustained after the project ends remains an important challenge. We explore the challenge...

  15. Initial Market Assessment

    OpenAIRE

    World Bank, (WB)

    2013-01-01

    Responding appropriately to the country’s high exposure and vulnerability to natural disasters, and capitalizing on a well-functioning insurance industry, Vietnam has embraced insurance mechanisms in disaster risk management and agriculture more vigorously than most developing countries. But some initiatives like the disaster risk reduction (DRR) strategy’s mandate to implement disaster ri...

  16. Initial operation of PDX

    International Nuclear Information System (INIS)

    Initial operation of PDX with a circular cross-section plasma is described. The machine parameters are given and the glow discharge cleaning is discussed. Plasma parameters for a circular deuterium plasma discharge are given for both moderate and low q experiments

  17. Open Archives Initiative

    OpenAIRE

    McMillan, Gail

    2004-01-01

    This presentation, which was given at the annual meeting of the Society of Scholarly Publishing on June 1, 2000, describes the Open Archives Initiative (OAI), a protocol for exchanging content between digital repositories. The presentation outlines OAI's history, core components, key stakeholders, and ongoing developments. Presented at the Society for Scholarly Publishing: June 1, 2000

  18. Implementing greenhouse gas emissions caps: A case study of the Los Angeles Department of Water and Power

    Energy Technology Data Exchange (ETDEWEB)

    Carlson, A.E. [University of California Los Angeles, Los Angeles, CA (United States). School for Law

    2008-08-15

    Our almost forty-year experience with landmark federal environmental statutes, demonstrates unequivocally that implementing grand and noble environmental goals is an arduous and difficult experience. California is now embarking on a similar project: implementing the country's most ambitious greenhouse gas emissions limitations, including rolling back the state's emissions to 1990 levels by 2020. The state's leadership on climate change legislation deserves significant praise. But the hard work in actually achieving emissions limits is just beginning. In this Essay, Professor Ann Carlson provides a case study of the country's largest municipally owned utility - the Los Angeles Department of Water and Power (DWP) - and the challenges it will face in holding its emissions to 1990 levels by 2020. The case study is particularly useful to anticipate challenges utilities across the country will face if the federal government also mandates greenhouse gas emissions reductions. The DWP's energy mix, with its heavy reliance on coal, looks quite similar to the energy mix of the country as a whole (and quite different from the rest of California's electricity market). The challenges are daunting. They include shifting rapidly to renewable energy sources in the face of labor pressures to have DWP own its own sources; building miles of transmission lines to bring the renewable energy to DWP's customer base; repowering natural gas facilities while attempting to comply with stringent Clean Water Act requirements; and eliminating the utility's reliance on coal over the next two decades. These efforts will raise complex environmental and other value clashes, pitting those concerned about jobs, water pollution, species protection, and aesthetic harms against a utility admirably committed to cutting its greenhouse gas emissions significantly. Whether and how we resolve these clashes remains an open and contested question.

  19. Correlation of Obesity With Elevated Blood Pressure Among Racial/Ethnic Minority Children in Two Los Angeles Middle Schools

    Directory of Open Access Journals (Sweden)

    Judith M. Siegel, PhD, MsHyg

    2008-04-01

    Full Text Available IntroductionTo identify anthropometric and fitness correlates of elevated blood pressure, serum cholesterol, and glycated hemoglobin, we examined anthropometric and physiologic biomarkers among racial/ethnic minority children aged 11 to 13 years in two urban Los Angeles middle schools. We explored the potential for using obesity or fitness level as screening variables for cardiovascular disease risk factors in these students.MethodsDuring regularly scheduled physical education classes, we collected data on demographic characteristics, height, weight, blood pressure, nonfasting total serum cholesterol, glycated hemoglobin, time to run/walk 1 mile, and a range of self-reported behaviors. A total of 199 sixth-graders (121 Latinos, 78 African Americans participated in the study.ResultsBivariate analyses indicated that 48.6% of sixth-graders were of desirable weight, 17.5% were overweight, 29.9% were at risk for overweight, and 4.0% were underweight. Higher weight was associated with higher levels of serum cholesterol, systolic blood pressure, and diastolic blood pressure (P values for all associations <.02 but not with glycated hemoglobin. Multivariate analyses maintained the findings with regard to blood pressure but not serum cholesterol.ConclusionOverweight status could be a screening variable for identifying youth at risk for high blood pressure. Obesity prevention and intervention programs and policies need to target low-income racial/ethnic minority children. Assessment of hypertension status also seems warranted in low-income racial/ethnic minority sixth-graders, as does early intervention for children at high risk.

  20. Micrometeorological simulations to predict the impacts of heat mitigation strategies on pedestrian thermal comfort in a Los Angeles neighborhood

    Science.gov (United States)

    Taleghani, Mohammad; Sailor, David; Ban-Weiss, George A.

    2016-02-01

    The urban heat island impacts the thermal comfort of pedestrians in cities. In this paper, the effects of four heat mitigation strategies on micrometeorology and the thermal comfort of pedestrians were simulated for a neighborhood in eastern Los Angeles County. The strategies investigated include solar reflective ‘cool roofs’, vegetative ‘green roofs’, solar reflective ‘cool pavements’, and increased street-level trees. A series of micrometeorological simulations for an extreme heat day were carried out assuming widespread adoption of each mitigation strategy. Comparing each simulation to the control simulation assuming current land cover for the neighborhood showed that additional street-trees and cool pavements reduced 1.5 m air temperature, while cool and green roofs mostly provided cooling at heights above pedestrian level. However, cool pavements increased reflected sunlight from the ground to pedestrians at a set of unshaded receptor locations. This reflected radiation intensified the mean radiant temperature and consequently increased physiological equivalent temperature (PET) by 2.2 °C during the day, reducing the thermal comfort of pedestrians. At another set of receptor locations that were on average 5 m from roadways and underneath preexisting tree cover, cool pavements caused significant reductions in surface air temperatures and small changes in mean radiant temperature during the day, leading to decreases in PET of 1.1 °C, and consequent improvements in thermal comfort. For improving thermal comfort of pedestrians during the afternoon in unshaded locations, adding street trees was found to be the most effective strategy. However, afternoon thermal comfort improvements in already shaded locations adjacent to streets were most significant for cool pavements. Green and cool roofs showed the lowest impact on the thermal comfort of pedestrians since they modify the energy balance at roof level, above the height of pedestrians.

  1. Abrasion Properties of Steel Fiber Reinforced Silica Fume Concrete According to Los Angeles and Water Abrasion Tests

    Directory of Open Access Journals (Sweden)

    Tsan-Ching CHENG

    2014-12-01

    Full Text Available The current study mainly investigated the influence of different tests on the abrasion resistance of concrete mixed with steel fibers and silica fume. The abrasion resistance was assessed at 28, 56 and 91 days on concretes with water-binder ratios of 0.35 and 0.55 where in some mixes silica fume was substituted by 5 % of cement by weight. Steel fibers of 0.5 % and 1.0 % of concrete volume were also added into the test concrete by replacement of coarse and fine aggregates. The results showed that concrete with higher compressive strength in Los Angeles abrasion tests also had better abrasion resistance. The inclusion of steel fibers into test concrete with a water-binder ratio of 0.35 resulted in a significant increase in compressive strength. This concrete also displayed better abrasion resistance and splitting tensile strength than reference concrete; in the test sample with a water-binder ratio of 0.55, the added steel fibers was unable to effectively produce cementation with the concrete. The inclusion of silica fume improved the abrasion resistance of concretes. In water abrasion testing, the abrasion resistance of concrete containing steel fiber was worse than that of concrete without steel fibers. In the water abrasion testing, the surface of steel fiber reinforced concrete was eroded by water and steel balls, and the impact caused the steel fibers to separate from the concrete and led to higher wear loss. DOI: http://dx.doi.org/10.5755/j01.ms.20.4.6460

  2. Micrometeorological simulations to predict the impacts of heat mitigation strategies on pedestrian thermal comfort in a Los Angeles neighborhood

    International Nuclear Information System (INIS)

    The urban heat island impacts the thermal comfort of pedestrians in cities. In this paper, the effects of four heat mitigation strategies on micrometeorology and the thermal comfort of pedestrians were simulated for a neighborhood in eastern Los Angeles County. The strategies investigated include solar reflective ‘cool roofs’, vegetative ‘green roofs’, solar reflective ‘cool pavements’, and increased street-level trees. A series of micrometeorological simulations for an extreme heat day were carried out assuming widespread adoption of each mitigation strategy. Comparing each simulation to the control simulation assuming current land cover for the neighborhood showed that additional street-trees and cool pavements reduced 1.5 m air temperature, while cool and green roofs mostly provided cooling at heights above pedestrian level. However, cool pavements increased reflected sunlight from the ground to pedestrians at a set of unshaded receptor locations. This reflected radiation intensified the mean radiant temperature and consequently increased physiological equivalent temperature (PET) by 2.2 °C during the day, reducing the thermal comfort of pedestrians. At another set of receptor locations that were on average 5 m from roadways and underneath preexisting tree cover, cool pavements caused significant reductions in surface air temperatures and small changes in mean radiant temperature during the day, leading to decreases in PET of 1.1 °C, and consequent improvements in thermal comfort. For improving thermal comfort of pedestrians during the afternoon in unshaded locations, adding street trees was found to be the most effective strategy. However, afternoon thermal comfort improvements in already shaded locations adjacent to streets were most significant for cool pavements. Green and cool roofs showed the lowest impact on the thermal comfort of pedestrians since they modify the energy balance at roof level, above the height of pedestrians. (letter)

  3. Gravity wave initiated convection

    Science.gov (United States)

    Hung, R. J.

    1990-01-01

    The vertical velocity of convection initiated by gravity waves was investigated. In one particular case, the convective motion-initiated and supported by the gravity wave-induced activity (excluding contributions made by other mechanisms) reached its maximum value about one hour before the production of the funnel clouds. In another case, both rawinsonde and geosynchronous satellite imagery were used to study the life cycles of severe convective storms. Cloud modelling with input sounding data and rapid-scan imagery from GOES were used to investigate storm cloud formation, development and dissipation in terms of growth and collapse of cloud tops, as well as, the life cycles of the penetration of overshooting turrets above the tropopause. The results based on these two approaches are presented and discussed.

  4. INITIAL TRAINING OF RESEARCHERS

    Directory of Open Access Journals (Sweden)

    Karina Alejandra Cruz-Pallares

    2015-07-01

    Full Text Available The document presents results of a research that used as strategy a complementary training project with thirty-three students of a Bachelors Degree in Primary School 1997(DPS,1997 of an Education Faculty for the initial training of investigators, applied by four teachers members of the academic research group in Mexico; that develops through process of action research methodology. Highlighted in results is the strengthening of the competition of reading, understanding and writing scientific texts, which is analogous to the first feature of the graduate profile called intellectual skills. Among the conclusions it is emphasized that the initial training of teachers in a task that is quite interesting, challenging and complex, as is the educational complex phenomenon.

  5. Self-initiated expatriates

    DEFF Research Database (Denmark)

    Selmer, Jan; Lauring, Jakob

    2014-01-01

    Purpose – As it has been suggested that adult third-culture kids may be more culturally adaptable than others, they have been labelled “the ideal” expatriates. In this article, we explore the adjustment of self-initiated expatriate academics in Hong Kong, comparing adult third-culture kids with...... adult mono-culture kids. Design/methodology/approach – We use survey results from 267 self-initiated expatriate academics in Hong Kong. Findings – Exploratory results show that adult third-culture kids had a higher extent of general adjustment. No significant results were found in relation to...... interaction adjustment and job adjustment. We also found that recent expatriate experiences generally had a positive association with the adjustment of adult mono-culture kids, but this association only existed in terms of general adjustment for adult third-culture kids. Originality/value – Once corroborated...

  6. The Yekaterinburg headache initiative

    DEFF Research Database (Denmark)

    Lebedeva, Elena R; Olesen, Jes; Osipova, Vera V;

    2013-01-01

    disability are well in excess of the global and European averages, is no exception, while arcane diagnoses and treatment preferences are an aggravating factor. Urgent remedial action, with political support, is called for. METHODS: Yekaterinburg, in Sverdlovsk Oblast, is the chosen centre for a...... demonstrational interventional project in Russia, undertaken within the Global Campaign against Headache. The initiative proposes three actions: 1) raise awareness of need for improvement; 2) design and implement a three-tier model (from primary care to a single highly specialized centre with academic affiliation...... context of a health-care needs assessment, and as a model for all Russia. We present and discuss early progress of the initiative, justify the investment of resources required for implementation and call for the political support that full implementation requires. The more that the Yekaterinburg headache...

  7. Laser Initiated Actuator study

    Energy Technology Data Exchange (ETDEWEB)

    Watson, B.

    1991-06-27

    The program task was to design and study a laser initiated actuator. The design of the actuator is described, it being comprised of the fiber and body subassemblies. The energy source for all experiments was a Spectra Diode 2200-H2 laser diode. The diode is directly coupled to a 100 micron core, 0.3 numerical aperture fiber optic terminated with an SMA connector. The successful testing results are described and recommendations are made.

  8. Innovative Rural Development Initiatives

    OpenAIRE

    Wickenhagen, A.; Pontieri, A.; Heilig, G.K.

    2002-01-01

    This Interim Report provides first results from case studies of innovative rural development initiatives in Europe. They were conducted by IIASA's European Rural Development (ERD) project during 2001 -- primarily to test the feasibility of the research concept and to get a first realistic impression of rural development problems and possibilities at the IDeal level. These reports are only the first round of a much larger sample of some 40 to 50 case studies, which are planned for the nex...

  9. Initiation Train Experiments

    Science.gov (United States)

    Francois, Elizabeth; Johnson, Carl; Liechty, Gary; Whitley, Von

    2015-06-01

    In an effort to evaluate and qualify a new detonator diagnostic, booster selection and main charge configuration, a variety of small-scale tests have been conducted. This paper will describe the needs, testing approach and model validation. Because of the limited size available some novel approaches were made to understand the observed phenomenon. Function time and time of arrival at various locations in the initiation train are desirable data points. Knowing when each segment initiates the next segment and the time to run up to detonation is critical. Results of our experiments were modeled for timing accuracy, wave shape and pressure. Agreement between the experiments and models will be discussed. The testing that will be discussed is time of arrival wires, PDV, and fiber optic arrays. The time of arrival wire measures the detonator cup breakout time. When correlated to bridge burst, an absolute time is collected. This data point also gives time zero for the booster initiation. Many models actually start at the booster, rather than the detonator, so the inclusion of this data point will improve modeling efforts.

  10. Emission ratios of anthropogenic volatile organic compounds in northern mid-latitude megacities: Observations versus emission inventories in Los Angeles and Paris

    Science.gov (United States)

    Borbon, Agnes; Gilman, J. B.; Kuster, W. C.; Grand, N.; Chevaillier, S.; Colomb, A.; Dolgorouky, C.; Gros, V.; Lopez, M.; Sarda-Esteve, R.; Holloway, J.; Stutz, J.; Petetin, H.; McKeen, S.; Beekmann, M.; Warneke, C.; Parrish, D. D.; Gouw, J. A.

    2013-02-01

    Ground-based and airborne volatile organic compound (VOC) measurements in Los Angeles, California, and Paris, France, during the Research at the Nexus of Air Quality and Climate Change (CalNex) and Megacities: Emissions, Urban, Regional and Global Atmospheric Pollution and Climate Effects, and Integrated Tools for Assessment and Mitigation (MEGAPOLI) campaigns, respectively, are used to examine the spatial variability of the composition of anthropogenic VOC urban emissions and to evaluate regional emission inventories. Two independent methods that take into account the effect of chemistry were used to determine the emission ratios of anthropogenic VOCs (including anthropogenic isoprene and oxygenated VOCs) over carbon monoxide (CO) and acetylene. Emission ratios from both methods agree within ±20%, showing the reliability of our approach. Emission ratios for alkenes, alkanes, and benzene are fairly similar between Los Angeles and Paris, whereas the emission ratios for C7-C9 aromatics in Paris are higher than in Los Angeles and other French and European Union urban areas by a factor of 2-3. The results suggest that the emissions of gasoline-powered vehicles still dominate the hydrocarbon distribution in northern mid-latitude urban areas, which disagrees with emission inventories. However, regional characteristics like the gasoline composition could affect the composition of hydrocarbon emissions. The observed emission ratios show large discrepancies by a factor of 2-4 (alkanes and oxygenated VOC) with the ones derived from four reference emission databases. A bias in CO emissions was also evident for both megacities. Nevertheless, the difference between measurements and inventory in terms of the overall OH reactivity is, in general, lower than 40%, and the potential to form secondary organic aerosols (SOA) agrees within 30% when considering volatile organic emissions as the main SOA precursors.

  11. Study of CO/sub 2/ recovery and tertiary oil production enhancement in the Los Angeles Basin. Final report, September 1978

    Energy Technology Data Exchange (ETDEWEB)

    Shah, R.P.; Wittmeyer, E.E.; Sharp, S.D.; Griep, R.W.

    1979-01-01

    Results are presented of stuides conducted to evaluate carbon dioxide sources in the Los Angeles Basin, determine the requirements for upgrading and transmitting the gas, write the necessary material specifications, and determine where carbon dioxde may be effectively utilized as an enhanced recovery agent in oil fields, estimate recovery performance, and evaluate potential economic benefits. Study results show that there are two major sources of CO/sub 2/ in the Los Angeles Basin. Six oil refineries and one ammonia plant (all near Los Angeles Basin oil fields), have hydrogen plants with by-product streams of concentrated CO/sub 2/. The total available (uncommitted) CO/sub 2/ from these streams is about 3,000 tons per day. Six major electric power plants, all near L.A. Basin oil fields, discharge a combined total of 70,000 tons per day of CO/sub 2/ from 27 large boilers. Average CO/sub 2/ concentration in the flue gas is about 14 percent on a dry basis. CO/sub 2/ processing recommendations include modification of the existing hydrogen-CO/sub 2/ separation system, so that nitrogen is not used for stripping and therefore does not need to be removed, use propylene carbonate absorption, and use low-temperature separation. For CO/sub 2/ extraction from flue gas, monoethanolamine (MEA) absorption is recommended. Several reservoirs have been identified and are listed as prime candidates for CO/sub 2/ injection, using the major criteria of high oil saturation in the reservoir, suitable depth of the reservoir, and a good potential for zone control. (JRD)

  12. Facilitators and Barriers to Implementing a Local Policy to Reduce Sodium Consumption in the County of Los Angeles Government, California, 2009

    Directory of Open Access Journals (Sweden)

    Lauren N. Gase, MPH

    2011-03-01

    Full Text Available IntroductionThis qualitative study explores facilitators and barriers to a proposed food procurement policy that would require food purchasers, distributors, and vendors of food service in the County of Los Angeles government to meet specified nutrition standards, including limits on sodium content.MethodsWe conducted 30 key informant interviews. Interviewees represented 18 organizations from the County of Los Angeles government departments that purchased, distributed, or sold food; public and private non-County entities that had previously implemented food procurement policies in their organizations; and large organizations that catered food to the County.ResultsStudy participants reported 3 key facilitators: their organization’s authority to impose nutrition standards, their organization’s desire to provide nutritious food, and the opportunity to build on existing nutrition policies. Eight key barriers were identified: 1 unique features among food service settings, 2 costs and unavailability of low-sodium foods, 3 complexity of food service arrangements, 4 lack of consumer demand for low-sodium foods, 5 undesirable taste of low-sodium foods, 6 preference for prepackaged products, 7 lack of knowledge and experience in operationalizing sodium standards, and 8 existing multiyear contracts that are difficult to change. Despite perceived barriers, several participants indicated that their organizations have successfully implemented nutritional standards that include limits on sodium.ConclusionDeveloping or changing policies for procuring food represents a potentially feasible strategy for reducing sodium consumption in food service venues controlled by the County of Los Angeles. The facilitators and barriers identified here can inform the formulation, adoption, implementation, and evaluation of sodium reduction policies in other jurisdictions.

  13. Trace Metal Inventories and Lead Isotopic Composition Chronicle a Forest Fire’s Remobilization of Industrial Contaminants Deposited in the Angeles National Forest

    OpenAIRE

    Odigie, Kingsley O.; Flegal, A. Russell

    2014-01-01

    The amounts of labile trace metals: [Co] (3 to 11 µg g−1), [Cu] (15 to 69 µg g−1), [Ni] (6 to 15 µg g−1), [Pb] (7 to 42 µg g−1), and [Zn] (65 to 500 µg g−1) in ash collected from the 2012 Williams Fire in Los Angeles, California attest to the role of fires in remobilizing industrial metals deposited in forests. These remobilized trace metals may be dispersed by winds, increasing human exposures, and they may be deposited in water bodies, increasing exposures in aquatic ecosystems. Correlation...

  14. Characterization of organic, metal and trace element PM2.5 species and derivation of freeway-based emission rates in Los Angeles, CA.

    Science.gov (United States)

    Liacos, James W; Kam, Winnie; Delfino, Ralph J; Schauer, James J; Sioutas, Constantinos

    2012-10-01

    On-road particulate matter (PM) was collected during a sampling campaign in March-April of 2011 on two major Los Angeles freeways, I-710 and Route 110. I-710 is a major route for heavy-duty vehicles (HDVs) traveling to and from the Ports of Long Beach and Los Angeles, while Route 110 has a much lower HDV fraction -3.9% versus 11.4%. Two sets of samples were collected for each roadway, each set representing approximately 50°h of on-road sampling. Concurrent sampling at a fixed site at the University of Southern California's (USC) downtown Los Angeles campus provided estimates of urban background levels. Chemical analysis was performed for elemental carbon (EC), organic carbon (OC), polycyclic aromatic hydrocarbons (PAHs), hopanes and steranes, and metals and trace elements. Freeway-based emission rates (ERs) - mass per kilometer of freeway per hour - were calculated using mass concentrations, fuel characteristics, and traffic flow rates. These ERs are presented such that freeways could be treated as a line source of emissions for use in predictive models of population exposure for nearby communities. This data could also be used to assess the exposure of commuters to traffic-related PM2.5 emissions. ERs are compared to data from a previous fixed-site roadside study of I-710 as well as to reconstructed values from a tunnel study. ERs were generally lower (or comparable) on the gasoline-vehicle dominated freeway (Route 110) than the freeway with more diesel trucks (I-710), with EC and pyrene being notably lower on Route 110, findings consistent with the Route 110's lower HDV fraction. We found EC emission rates decreased over time suggesting that efforts to reduce diesel emissions from HDVs at the Ports of Los Angeles and Long Beach have been successful. While ERs for most of the organic species were within the range of values reported by previous studies, the present study found much higher ERs for metals and trace elements. This suggests that the sampling methods

  15. “The compass of possibilities”: Re-Mapping the Suburbs of Los Angeles in the Writings of D.J. Waldie

    OpenAIRE

    Neil Campbell

    2011-01-01

    This article uses the works of the writer, memoirist, and Lakewood, California public official, D. J. Waldie to deepen our concept of “region” and to re-assess many of the stereotypical discourses associated with the American suburbs. In the fashionable parlance of Mike Davis’ City of Quartz, Los Angeles has become defined by its “suburban badlands”; however, Waldie‘s work takes a different view in which his suburban home in LA is the focus for a more complex, multi-faceted approach to post-w...

  16. Trophic level and isotopic composition of 13C and 15N of pacific angel shark, Squatina californica (Ayres, 1859), in the Southern Gulf of California, Mexico

    OpenAIRE

    Escobar Sánchez, Ofelia; Galván Magaña, Felipe; Abitia Cárdenas, Leonardo Andrés

    2011-01-01

    δ13C and δ1NN stable isotopes were used to determine trophic level and the assimilated food components of Pacific angel shark, Squatina californica and its variation between size, sexes and seasonally in the southern Gulf of California, Mexico. Muscle tisúes were collected during 2001 to 2003. The quantification of δ13C and δ15N stable isotopes was realizad by isotope ratio mass spectrometry. The values of stable isotope of carbon (δ13C) ranged from -16.55 to -15.06% (average -15.94% + 0.34) ...

  17. Description of preoperative risk factors and postoperative complications of radical hysterectomy in patients of Hospital Dr. Rafael Angel Calderon Guardia: period 2000-2006

    International Nuclear Information System (INIS)

    Preoperative risk factors and postoperative complications were determined in patients with radical hysterectomy in gynecologic oncology service of Hospital Rafael Angel Calderon Guardia in 2000-2006. Radical hysterectomy Piver type II and III was carried out among women in the gynecology service. The information derived from the qualitative variables were analyzed using frequency distributions and percentages. The most common preoperative comorbidity has been hypertension, the most frequently encountered complication has been urinary incontinence. Postoperative complications have been located in a period less than three months.

  18. Diagnóstico de el ambiente de trabajo para el mejoramiento del mismo en el Club de Beisbol Tigres de la Angelópolis de Puebla

    OpenAIRE

    Cano Arano, Octavio

    2004-01-01

    La tesis de el diagnostico del ambiente de trabajo para el mejoramiento del mismo en el club de béisbol de tigres de la Angelópolis, esta basada en la recopilación de la información obtenida a partir de las respuestas del cliente interno. Este proyecto tuvo como objetivo diagnosticar el ambiente laboral de la organización con el fin de mejorar el incremento de los aficionados al estadio de béisbol, que tuvo como base los siete elementos de Berry y Parasuraman para la ela...

  19. Analisi Crítica del Discurs de documentals sobre drets humans i nens refugiats: Estudi de cas de 'Promises' i 'Angels in the Dust'

    OpenAIRE

    Mora Antoja, Alba

    2015-01-01

    El present treball té l'objectiu d'estudiar la construcció del discurs audiovisual de dos documentals sobre drets humans i menors refugiats que han estat guardonats pel sector cinematogràfic: 'Promises' -sobre el conflicte Israel-Palestina- i 'Angels in the Dust' -sobre la sida a Sud-africa. A partir de teories i estudis previs com l'Analisi Crítica del Discurs de Teun A. van Dijk, s'ha elaborat una fitxa d'anàlisi que ha de permetre concloure el nivell de compromís, respecte i rigor dels dir...

  20. Framing the Fukushima Daiichi nuclear accident: An international, comparative study of news frames in Der Spiegel, the Japan Times and the Los Angeles Times

    International Nuclear Information System (INIS)

    This study investigated into the news frames employed in reporting on the Fukushima Daiichi nuclear accident, explored the maintenance of the radiation reporting standard, and assessed the overall tone for the local government, the Japanese Government, and the IAEA. Based on content from Der Spiegel, the Japan Times and the Los Angeles Times (n=60), it was found that media evoked 'conflict', 'responsibility attribution', and 'human interest' frames, radiation reporting standard was marginally maintained, and the overall tone was neutral (local government, IAEA) or negative (Japanese Government). Variances across countries were observed, but results coincided with the country's nuclear energy policy. (author)

  1. Through bulkhead initiator studies

    Energy Technology Data Exchange (ETDEWEB)

    Begeal, D.R. [Sandia National Labs., Albuquerque, NM (United States). Explosive Subsystems and Materials Dept.

    1997-03-01

    This report describes recent work done to demonstrate feasibility of a fail-safe Through Bulkhead Initiator with minimum dimensions and suitable for use in cyclical thermal environments. Much of the ground work for a fail-safe TBI was previously done by A.C. Schwartz. This study is an expansion of Schwartz`s work to evaluate devices with bulkheads of 304 stainless steel and Inconel 718; explosive donors of PETN, BNCP, and a 0.005 inch thick steel flying plate donor traveling at 2.6 mm/{micro}s; and explosive acceptors of PETN and BNCP. Bulkhead thickness were evaluated in the range of 0.040 to 0.180 inch. The explosive acceptors initiated a small HMX pellet to drive a 0.005 inch thick steel flying plate, and VISAR histories of the HMX-driven flying plates were the measure of acceptable performance. A companion set of samples used a PMMA acceptor to measure the particle velocities at the bulkhead/PMMA interface with VISAR. These data were used to compute the input pressure to the acceptor explosives in an attempt to measure initiation threshold. Unfortunately, the range of bulkhead thicknesses tested did not give any failures, thus the threshold was not determined. It was found that either explosive or the flying plate would perform as a TBI in the bulkhead thickness range tested. The optimum TBI is about 0.060 inches thick, and steel bulkheads seem to be more structurally sound than those made of Inconel. That is, cross section views of the Inconel bulkheads showed it to be more prone to stress cracking than was the 304 stainless steel. Both PETN and BNCP showed good performance when tested at {minus}65 F following thermal cycling of {minus}65 F to +165 F. Analysis of the TBI function times showed that BNCP acceptor explosives were undergoing the classical deflagration to detonation process. The PETN acceptors were undergoing prompt detonation.

  2. Initial Cooling Experiment (ICE)

    CERN Multimedia

    Photographic Service

    1978-01-01

    In 1977, in a record-time of 9 months, the magnets of the g-2 experiment were modified and used to build a proton/antiproton storage ring: the "Initial Cooling Experiment" (ICE). It served for the verification of the cooling methods to be used for the "Antiproton Project". Stochastic cooling was proven the same year, electron cooling followed later. Also, with ICE the experimental lower limit for the antiproton lifetime was raised by 9 orders of magnitude: from 2 microseconds to 32 hours. For its previous life as g-2 storage ring, see 7405430. More on ICE: 7711282, 7809081, 7908242.

  3. Hanford tanks initiative plan

    International Nuclear Information System (INIS)

    Abstract: The Hanford Tanks Initiative (HTI) is a five-year project resulting from the technical and financial partnership of the U.S. Department of Energy's Office of Waste Management (EM-30) and Office of Science and Technology Development (EM-50). The HTI project accelerates activities to gain key technical, cost performance, and regulatory information on two high-level waste tanks. The HTI will provide a basis for design and regulatory decisions affecting the remainder of the Tank Waste Remediation System's tank waste retrieval Program

  4. Hanford tanks initiative plan

    Energy Technology Data Exchange (ETDEWEB)

    McKinney, K.E.

    1997-07-01

    Abstract: The Hanford Tanks Initiative (HTI) is a five-year project resulting from the technical and financial partnership of the U.S. Department of Energy`s Office of Waste Management (EM-30) and Office of Science and Technology Development (EM-50). The HTI project accelerates activities to gain key technical, cost performance, and regulatory information on two high-level waste tanks. The HTI will provide a basis for design and regulatory decisions affecting the remainder of the Tank Waste Remediation System`s tank waste retrieval Program.

  5. EFFECTIVE DIVERSITY MANAGEMENT INITIATIVES

    Directory of Open Access Journals (Sweden)

    Suat Begec

    2013-01-01

    Full Text Available Diversity characteristics defines into four areas; personality, internal and external characteristics, and organizational characteristics. Today it is hard to find individuals, organizational and management styles all similar to each other. Twenty-first century leaders face diversity challenges in many arenas and it is a fact that leaders have to live with these diversities. Values affects on the management and organization systems. The global values gain importance and remove the sources of diversities. The leaders believe that the values should be mostly protected. This article focuses on effective diversity management initiatives.

  6. IAEA knowledge management initiatives

    International Nuclear Information System (INIS)

    Since its inception the IAEA has always been a knowledge based organization, requested to serve and promote the cause of peaceful use of nuclear science and technology. For nearly five decades the IAEA has been providing nuclear information and knowledge to Member States. A substantial part of the IAEA's activities under the regular budget and technical cooperation programme are aimed at developing and sustaining adequate nuclear competence in the Member States, including helping to build capacity in different aspects of the peaceful uses of nuclear energy. The paper describes some knowledge management initiatives that are being implemented within the framework of the IAEA programme on nuclear knowledge management. (author)

  7. Feedback stabilization initiative

    International Nuclear Information System (INIS)

    Much progress has been made in attaining high confinement regimes in magnetic confinement devices. These operating modes tend to be transient, however, due to the onset of MHD instabilities, and their stabilization is critical for improved performance at steady state. This report describes the Feedback Stabilization Initiative (FSI), a broad-based, multi-institutional effort to develop and implement methods for raising the achievable plasma betas through active MHD feedback stabilization. A key element in this proposed effort is the Feedback Stabilization Experiment (FSX), a medium-sized, national facility that would be specifically dedicated to demonstrating beta improvement in reactor relevant plasmas by using a variety of MHD feedback stabilization schemes

  8. Stirling to Flight Initiative

    Science.gov (United States)

    Hibbard, Kenneth E.; Mason, Lee S.; Ndu, Obi; Smith, Clayton; Withrow, James P.

    2016-01-01

    Flight (S2F) initiative with the objective of developing a 100-500 We Stirling generator system. Additionally, a different approach is being devised for this initiative to avoid pitfalls of the past, and apply lessons learned from the recent ASRG experience. Two key aspects of this initiative are a Stirling System Technology Maturation Effort, and a Surrogate Mission Team (SMT) intended to provide clear mission pull and requirements context. The S2F project seeks to lead directly into a DOE flight system development of a new SRG. This paper will detail the proposed S2F initiative, and provide specifics on the key efforts designed to pave a forward path for bringing Stirling technology to flight.

  9. Initiation of slug flow

    Energy Technology Data Exchange (ETDEWEB)

    Hanratty, T.J.; Woods, B.D. [Univ. of Illinois, Urbana, IL (United States)

    1995-12-31

    The initiation of slug flow in a horizontal pipe can be predicted either by considering the stability of a slug or by considering the stability of a stratified flow. Measurements of the shedding rate of slugs are used to define necessary conditions for the existence of a slug. Recent results show that slugs develop from an unstable stratified flow through the evolution of small wavelength waves into large wavelength waves that have the possibility of growing to form a slug. The mechanism appears to be quite different for fluids with viscosities close to water than for fluids with large viscosities (20 centipoise).

  10. Brazilian Nanotechnology Initiative

    Science.gov (United States)

    Fazzio, Adalberto

    2015-03-01

    In Brazil there is intense research activity in nanotechnology, most of these developed in universities and research institutes. The Brazilian Nanotechnology Initiative (BNI) aims to integrate government actions to promote the competitiveness of the Brazilian industry. This initiative is founded on support for research and development in the laboratories of the National Laboratories for Nanotechnology (SisNANO), starting from an improvement in infrastructure and opening of laboratories for users of academia and business, promoting interaction and transfer knowledge between academia and business. Country currently has 26 thematic networks of nanotechnology, 16 -Virtual-National Institutes of Technology, seven National- Laboratories and 18 Associate Laboratories, which comprise the SisNANO. Seeking to expand and share governance with other government actors, the Interministries Committee for Nanotechnology was set up, composed of 10 ministries, and has the task of coordinating the entire program of the Federal Government Nanotechnology.Cooperation activities are an important part of BNI. Currently Brazil has cooperation programs with U.S., China, Canada and European Union among others. Recently, Brazil decided to join the European NanoReg program where 60 research groups are joining efforts to provide protocols and standards that can help regulatory agencies and governments.

  11. Initiatives for proliferation prevention

    International Nuclear Information System (INIS)

    Preventing the proliferation of weapons of mass destruction is a central part of US national security policy. A principal instrument of the Department of Energy's (DOE's) program for securing weapons of mass destruction technology and expertise and removing incentives for scientists, engineers and technicians in the newly independent states (NIS) of the former Soviet Union to go to rogue countries or assist terrorist groups is the Initiatives for Proliferation Prevention (IPP). IPP was initiated pursuant to the 1994 Foreign Operations Appropriations Act. IPP is a nonproliferation program with a commercialization strategy. IPP seeks to enhance US national security and to achieve nonproliferation objectives by engaging scientists, engineers and technicians from former NIS weapons institutes; redirecting their activities in cooperatively-developed, commercially viable non-weapons related projects. These projects lead to commercial and economic benefits for both the NIS and the US IPP projects are funded in Russian, Ukraine, Kazakhstan and Belarus. This booklet offers an overview of the IPP program as well as a sampling of some of the projects which are currently underway

  12. Initiatives for proliferation prevention

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-04-01

    Preventing the proliferation of weapons of mass destruction is a central part of US national security policy. A principal instrument of the Department of Energy`s (DOE`s) program for securing weapons of mass destruction technology and expertise and removing incentives for scientists, engineers and technicians in the newly independent states (NIS) of the former Soviet Union to go to rogue countries or assist terrorist groups is the Initiatives for Proliferation Prevention (IPP). IPP was initiated pursuant to the 1994 Foreign Operations Appropriations Act. IPP is a nonproliferation program with a commercialization strategy. IPP seeks to enhance US national security and to achieve nonproliferation objectives by engaging scientists, engineers and technicians from former NIS weapons institutes; redirecting their activities in cooperatively-developed, commercially viable non-weapons related projects. These projects lead to commercial and economic benefits for both the NIS and the US IPP projects are funded in Russian, Ukraine, Kazakhstan and Belarus. This booklet offers an overview of the IPP program as well as a sampling of some of the projects which are currently underway.

  13. Redox activity and chemical speciation of size fractioned PM in the communities of the Los Angeles-Long Beach harbor

    Science.gov (United States)

    Hu, S.; Polidori, A.; Arhami, M.; Shafer, M. M.; Schauer, J. J.; Cho, A.; Sioutas, C.

    2008-11-01

    In this study, two different types of assays were used to quantitatively measure the redox activity of PM and to examine its intrinsic toxicity: 1) in vitro exposure to rat alveolar macrophage (AM) cells using dichlorofluorescin diacetate (DCFH-DA) as the fluorescent probe (macrophage ROS assay), and: 2) consumption of dithiothreitol (DTT) in a cell-free system (DTT assay). Coarse (PM10-2.5), accumulation (PM2.5-0.25), and quasi-ultrafine (quasi-UF, PM0.25) mode particles were collected weekly at five sampling sites in the Los Angeles-Long Beach harbor and at one site near the University of Southern California campus (urban site). All PM samples were analyzed for organic (total and water-soluble) and elemental carbon, organic species, inorganic ions, and total and water-soluble elements. Quasi-UF mode particles showed the highest redox activity at all Long Beach sites (on both a per-mass and per-air volume basis). A significant association (R2=0.61) was observed between the two assays, indicating that macrophage ROS and DTT levels are affected at least partially by similar PM species. Relatively small variation was observed for the DTT measurements across all size fractions and sites, whereas macrophage ROS levels showed more significant ranges across the three different particle size modes and throughout the sites (coefficients of variation, or CVs, were 0.35, 0.24 and 0.53 for quasi-UF, accumulation, and coarse mode particles, respectively). Association between the PM constituents and the redox activity was further investigated using multiple linear regression models. The results showed that OC was the most important component influencing the DTT activity of PM samples. The variability of macrophage ROS was explained by changes in OC concentrations and water-soluble vanadium (probably originating from ship emissions bunker oil combustion). The multiple regression models were used to predict the average diurnal DTT levels as a function of the OC concentration at

  14. Redox activity and chemical speciation of size fractioned PM in the communities of the Los Angeles – Long Beach Harbor

    Directory of Open Access Journals (Sweden)

    A. Cho

    2008-06-01

    Full Text Available In this study, two different types of assays were used to quantitatively measure the redox activity of PM and to examine its intrinsic toxicity: 1 in vitro exposure to rat alveolar macrophage (AM cells using dichlorofluorescin diacetate (DCFH-DA as the fluorescent probe (macrophage ROS assay, and: 2 consumption of dithiothreitol (DTT in a cell-free system (DTT assay. Coarse (PM10–2.5, accumulation (PM2.5–0.25, and quasi-ultrafine (quasi-UF, PM0.25 mode particles were collected weekly at five sampling sites in the Los Angeles-Long Beach Harbor and at one site near the University of Southern California campus (urban site. All PM samples were analyzed for organic (total and water-soluble and elemental carbon, organic species, inorganic ions, and total and water-soluble elements. Quasi-UF mode particles showed the highest redox activity at all Long Beach sites (on both a per-mass and per-air volume basis. A significant association (R2=0.61 was observed between the two assays, indicating that macrophage ROS and DTT levels are affected at least partially by similar PM species. Relatively small variation was observed for the DTT measurements across all size fractions and sites, whereas macrophage ROS levels showed more significant ranges across the three different particle size modes and throughout the sites (coefficients of variation, or CVs, were 0.35, 0.24 and 0.53 for quasi-UF, accumulation, and coarse mode particles, respectively. Association between the PM constituents and the redox activity was further investigated using multiple linear regression models. The results showed that OC was the most important component influencing the DTT activity of PM samples. The variability of macrophage ROS was explained by changes in OC concentrations and water-soluble vanadium (probably originating from ship emissions – bunker oil combustion. The multiple regression models were used to predict the average diurnal macrophage ROS and DTT levels as a

  15. Availability of substance abuse treatment services in Spanish: A GIS analysis of Latino communities in Los Angeles County, California

    Directory of Open Access Journals (Sweden)

    Curtis Andrew

    2011-08-01

    Full Text Available Abstract Background The percentage of Latino clients entering outpatient substance abuse treatment (OSAT in the United States has increased significantly in the past 10 years. Evidence suggests that a lack of services in Spanish is a significant barrier to treatment access among Latinos. Methods Using a geographic information system (GIS approach, data from the U.S. Census Bureau and the National Survey of Substance Abuse Treatment Services (N-SSATS were analyzed to determine the geographic distance between OSAT facilities with services in Spanish and Latino communities throughout Los Angeles County, CA. Data from N-SSATS were also analyzed using logistic regression models to examine organizational characteristics and their association with offering services in Spanish. Our GIS methods are tested in their ability to provide baseline measures to inform future analysis comparing changes in demography and service infrastructure. Results GIS analysis revealed cold spots representing high-density Latino communities with extensive travel distance to facilities offering services in Spanish. The average linear distance between Latino communities and facilities offering Spanish-language services ranged from 2 to 6 miles, while the location of the cold spots pointed to a need for services in Spanish in a particular subregion of the county. Further, secondary data analysis revealed that, on average, being privately owned (OR = .23, 95% CI = 0.06-0.90 was associated with a lower likelihood of providing services in Spanish compared to public facilities. Additionally, a facility with a state license (OR = 2.08, 95% CI = 1.12-3.88 or a higher number of Medicaid recipients (OR = 2.98, 95% CI = 1.76-5.05 was twice as likely to offer services in Spanish. Conclusion Despite the significant presence of Latinos in L.A. County in 2000, low capacity was found in discrete Latino communities in terms of offering OSAT services in Spanish. Funding and regulation play a

  16. Los Angeles megacity: a high-resolution land-atmosphere modelling system for urban CO2 emissions

    Science.gov (United States)

    Feng, Sha; Lauvaux, Thomas; Newman, Sally; Rao, Preeti; Ahmadov, Ravan; Deng, Aijun; Díaz-Isaac, Liza I.; Duren, Riley M.; Fischer, Marc L.; Gerbig, Christoph; Gurney, Kevin R.; Huang, Jianhua; Jeong, Seongeun; Li, Zhijin; Miller, Charles E.; O'Keeffe, Darragh; Patarasuk, Risa; Sander, Stanley P.; Song, Yang; Wong, Kam W.; Yung, Yuk L.

    2016-07-01

    Megacities are major sources of anthropogenic fossil fuel CO2 (FFCO2) emissions. The spatial extents of these large urban systems cover areas of 10 000 km2 or more with complex topography and changing landscapes. We present a high-resolution land-atmosphere modelling system for urban CO2 emissions over the Los Angeles (LA) megacity area. The Weather Research and Forecasting (WRF)-Chem model was coupled to a very high-resolution FFCO2 emission product, Hestia-LA, to simulate atmospheric CO2 concentrations across the LA megacity at spatial resolutions as fine as ˜ 1 km. We evaluated multiple WRF configurations, selecting one that minimized errors in wind speed, wind direction, and boundary layer height as evaluated by its performance against meteorological data collected during the CalNex-LA campaign (May-June 2010). Our results show no significant difference between moderate-resolution (4 km) and high-resolution (1.3 km) simulations when evaluated against surface meteorological data, but the high-resolution configurations better resolved planetary boundary layer heights and vertical gradients in the horizontal mean winds. We coupled our WRF configuration with the Vulcan 2.2 (10 km resolution) and Hestia-LA (1.3 km resolution) fossil fuel CO2 emission products to evaluate the impact of the spatial resolution of the CO2 emission products and the meteorological transport model on the representation of spatiotemporal variability in simulated atmospheric CO2 concentrations. We find that high spatial resolution in the fossil fuel CO2 emissions is more important than in the atmospheric model to capture CO2 concentration variability across the LA megacity. Finally, we present a novel approach that employs simultaneous correlations of the simulated atmospheric CO2 fields to qualitatively evaluate the greenhouse gas measurement network over the LA megacity. Spatial correlations in the atmospheric CO2 fields reflect the coverage of individual measurement sites when a

  17. High temperature annealing of fission tracks in fluorapatite, Santa Fe Springs oil field, Los Angeles Basin, California

    Science.gov (United States)

    Naeser, Nancy D.; Crowley, Kevin D.; McCulloh, Thane H.; Reaves, Chris M.

    1990-01-01

    Annealing of fission tracks is a kinetic process dependent primarily on temperature and to a laser extent on time. Several kinetic models of apatite annealing have been proposed. The predictive capabilities of these models for long-term geologic annealing have been limited to qualitative or semiquantitative at best, because of uncertainties associated with (1) the extrapolation of laboratory observations to geologic conditions, (2) the thermal histories of field samples, and (3) to some extent, the effect of apatite composition on reported annealing temperatures. Thermal history in the Santa Fe Springs oil field, Los Angeles Basin, California, is constrained by an exceptionally well known burial history and present-day temperature gradient. Sediment burial histories are continuous and tightly constrained from about 9 Ma to present, with an important tie at 3.4 Ma. No surface erosion and virtually no uplift were recorded during or since deposition of these sediments, so the burial history is simple and uniquely defined. Temperature gradient (???40??C km-1) is well established from oil-field operations. Fission-track data from the Santa Fe Springs area should thus provide one critical field test of kinetic annealing models for apatite. Fission-track analysis has been performed on apatites from sandstones of Pliocene to Miocene age from a deep drill hole at Santa Fe Springs. Apatite composition, determined by electron microprobe, is fluorapatite [average composition (F1.78Cl0.01OH0.21)] with very low chlorine content [less than Durango apatite; sample means range from 0.0 to 0.04 Cl atoms, calculated on the basis of 26(O, F, Cl, OH)], suggesting that the apatite is not unusually resistant to annealing. Fission tracks are preserved in these apatites at exceptionally high present-day temperatures. Track loss is not complete until temperatures reach the extreme of 167-178??C (at 3795-4090 m depth). The temperature-time annealing relationships indicated by the new data

  18. The impact of gated Communities on property values: evidence of changes in real estate markets -Los Angeles, 1980-2000

    Directory of Open Access Journals (Sweden)

    Renaud Le Goix

    2007-05-01

    Full Text Available The paper focuses on how gated communities, as private means of providing public infrastructure and security, real estate products and club-economies, produce changes in housing market patterns. Based on an empirical study of Los Angeles (California data, it aims to trace to what extent gates and walls favor property values and if the presence of gated communities produces over time (1980-2000 a deterrent effect on non-gated properties abutting the enclave, or close to it. Resulting from a demand for security, gated communities are a leading offer from the homebuilding industry. But their spread emerges from a partnership between local governments and land developers. Both agree to charge the homebuyer with the cost of urban sprawl (construction and maintenance costs of infrastructure within the gates. Such a structuring of residential space is particularly desirable on the urban edges, where the cost of urban sprawl exceeds the financial assets of local public authorities. New private developments provide local governments with new wealthy taxpayers at almost no cost. As compensation, the homebuyer is granted private and exclusive access to sites and amenities (lakes, beaches, etc.. Such exclusivity favors the location rent, and usually positively affects the property values within the gated enclaves. But it is also assumed that operating cost of private governance are paid for by the increase of property values. Market failure nevertheless occurs when costs rise above sustainable levels compared to property values. Changes produced by gates yield to at least two outcomes. At first sight, residential enclosures produce a price premium, thus being a smart investment. Furthermore, gated communities might well be able to generate enough property value to pay off the price of private governance. But this analysis holds only on a short term basis. In the long term, larger and wealthier gated communities are successful in shielding their property

  19. Status of metal contamination in surface waters of the coastal ocean off Los Angeles, California since the implementation of the Clean Water Act.

    Science.gov (United States)

    Smail, Emily A; Webb, Eric A; Franks, Robert P; Bruland, Kenneth W; Sañudo-Wilhelmy, Sergio A

    2012-04-17

    In order to establish the status of metal contamination in surface waters in the coastal ocean off Los Angeles, California, we determined their dissolved and particulate pools and compared them with levels reported in the 1970s prior the implementation of the Clean Water Act. These measurements revealed a significant reduction in particulate toxic metal concentrations in the last 33 years with decreases of ∼100-fold for Pb and ∼400-fold for Cu and Cd. Despite these reductions, the source of particulate metals appears to be primarily anthropogenic as enrichment factors were orders of magnitude above what is considered background crustal levels. Overall, dissolved trace metal concentrations in the Los Angeles coastal waters were remarkably low with values in the same range as those measured in a pristine coastal environment off Mexico's Baja California peninsula. In order to estimate the impact of metal contamination on regional phytoplankton, the internalization rate of trace metals in a locally isolated phytoplankton model organism (Synechococcus sp. CC9311) was also determined showing a rapid internalization (in the order of a few hours) for many trace metals (e.g., Ag, Cd, Cu, Pb) suggesting that those metals could potentially be incorporated into the local food webs. PMID:22420576

  20. Urinary Metabolites of Polycyclic Aromatic Hydrocarbons and the Association with Lipid Peroxidation: A Biomarker-Based Study between Los Angeles and Beijing.

    Science.gov (United States)

    Lin, Yan; Qiu, Xinghua; Yu, Nu; Yang, Qiaoyun; Araujo, Jesus A; Zhu, Yifang

    2016-04-01

    Air pollution is among the top threats to human health in China. As air toxicants, polycyclic aromatic hydrocarbons (PAHs) could bring significant risks to population; however, the exposure to PAHs in China and its health impact are not fully understood. In 2012, a summer exchange program allowed 10 students to travel from Los Angeles to Beijing and stay there for 10 weeks. Based on the program, this study investigated the difference in urinary concentration of 12 hydroxylated-PAHs (Σ12OH-PAHs) and malondialdehyde (MDA) between the two cities. The median concentration of Σ12OH-PAHs in Beijing (14.1 μg g(-1) creatinine) was significantly higher than that in Los Angeles (5.78 μg g(-1) creatinine), indicating a higher exposure in Beijing. The ratios of homogeneous OH-PAHs (e.g., 1-/2-OH-NAP) changed significantly between the two cities (p < 0.01), which might suggest a potential alteration in metabolism subsequent to exposure. A significant association between Σ12OH-PAHs and MDA (p < 0.01) was observed, with the association varying between the two cities. This study suggests that exposure to PAHs might be linked to metabolism alteration and calls for future studies to investigate the role this possible alteration played in the health effects of PAHs exposure. PMID:26913796

  1. Ozone Concentration Profiles in the Los Angeles Basin - A Possible Similarity in the Build-up Mechanism of Inland Surface Ozone in Israel.

    Science.gov (United States)

    Dayan, Uri; Koch, Jean

    1996-07-01

    This paper analyzes some measurements of the Southern California Air Quality Study, which collected a comprehensive air quality, meteorological, and emissions database in the Los Angeles Basin. This analysis emphasizes the interaction of the enriched ozone layer existing aloft with the top of the convective boundary layer (CBL) in the early afternoon of warm summer days, leading to downward mixing (fumigation) of the ozone cloud toward the ground. This process was shown to contribute to the high ozone concentrations measured at inland elevated sites. It is suggested that this mechanism also exists in Israel and contributes to the elevated concentrations observed in the summer on the slopes of the Judean Hills. This analogy is based on the similarity between the Los Angeles Basin and central Israel regarding the climate, the local circulation (sea breeze), the orientation of the coast, and the upwind location of ozone precursor sources. The temporal fluctuations of the synoptic configuration persisting over Israel during the summer cause rapid variations in the depth of the CBL inland and its subsequent interaction with an ozone layer aloft.

  2. Distribution of halogenated species over the Los Angeles Basin measured during the 2008 ARCTAS campaign (CARB phase). A case study: HFC-152a

    Science.gov (United States)

    Barletta, B.; Meinardi, S.; Nissenson, P.; Dabdub, D.; Vancuren, R. A.; Pederson, J. R.; Rowland, F. S.; Blake, D. R.

    2009-12-01

    We present results from the NASA Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) study. Four research flights sponsored by the California Air Resources Board (CARB) were carried out over Californa in June 2008. Among many other measurements, whole air samples were collected on board of the DC-8 aircraft and were analyzed for selected volatile organic compounds (VOCs) which included several halogenated species. This study focuses on the characterization and distribution in the Los Angeles (LA) Basin of selected halocarbons including CFCs, CFC replacements (HCFCs and HFCs), halogenated solvents, and methyl halides. The levels of some of the halogenated species were found to be greatly enhanced over the LA basin. For instance, average mixing ratios of 95±77 pptv and 52±60 pptv were measured for HFC-134a and HFC-152a respectively, representing a 160% and ~800% enhancement. Using the ARCTAS-CARB data set, we estimate annual emissions of HFC-152a from the Los Angeles basin.

  3. ‚Glauben-Lernen’ als Beitrag für eine menschengerechte schulische Bildung. Zugleich eine Auseinandersetzung mit religionspädagogischen Grundgedanken von Hans-Ferdinand Angel

    Directory of Open Access Journals (Sweden)

    Martin Rothgangel

    2016-06-01

    Full Text Available Ausgehend von der Unterscheidung von Religiosität und Glaube wird zunächst der Begriff des ‚Glauben-Lernens’ problematisiert. Anstelle dessen verdient der Begriff ‚religiöse Bildung’ den Vorzug, weil damit deutlicher zum Ausdruck gebracht wird, dass sich alle religionspädagogischen Bemühungen im Bereich der ‚Wegbereitung’ und des ‚Vorletzten’ (D. Bonhoeffer befinden. Im Anschluss daran wird der Frage nachgegangen, in welcher Hinsicht ‚religiöse Bildung’ einen Beitrag für eine menschengerechte schulische Bildung leisten kann. Vor diesem Hintergrund erfolgt schließlich eine Auseinandersetzung mit der von Hans-Ferdinand Angel entwickelten Creditionentheorie. ‘Faith-learning’ as a contribution to a human-oriented school education. (Also a discussion of the religious educational concepts of Hans-Ferdinand Angel Based on the distinction between religiosity and faith, the article critically examines the notion of ‘faith-learning’. We rather propose the term ‘religious education’ since it expresses more clearly that all religious pedagogical endeavors pertain to the realm of ‘paving the way‘ and ‘the penultimate’ (D. Bonhoeffer. Subsequently, we discuss in which sense religious education contributes to a human-oriented school education. Against this background, the article explores Hans-Ferdinand Angel’s ‘creditions theory’.

  4. Breckinridge Project, initial effort

    Energy Technology Data Exchange (ETDEWEB)

    None, None

    1982-09-01

    Report III, Volume 1 contains those specifications numbered A through J, as follows: General Specifications (A); Specifications for Pressure Vessels (C); Specifications for Tanks (D); Specifications for Exchangers (E); Specifications for Fired Heaters (F); Specifications for Pumps and Drivers (G); and Specifications for Instrumentation (J). The standard specifications of Bechtel Petroleum Incorporated have been amended as necessary to reflect the specific requirements of the Breckinridge Project, and the more stringent specifications of Ashland Synthetic Fuels, Inc. These standard specifications are available to the Initial Effort (Phase Zero) work performed by all contractors and subcontractors. Report III, Volume 1 also contains the unique specifications prepared for Plants 8, 15, and 27. These specifications will be substantially reviewed during Phase I of the project, and modified as necessary for use during the engineering, procurement, and construction of this project.

  5. Instrumented Pipeline Initiative

    Energy Technology Data Exchange (ETDEWEB)

    Thomas Piro; Michael Ream

    2010-07-31

    This report summarizes technical progress achieved during the cooperative agreement between Concurrent Technologies Corporation (CTC) and U.S. Department of Energy to address the need for a for low-cost monitoring and inspection sensor system as identified in the Department of Energy (DOE) National Gas Infrastructure Research & Development (R&D) Delivery Reliability Program Roadmap.. The Instrumented Pipeline Initiative (IPI) achieved the objective by researching technologies for the monitoring of pipeline delivery integrity, through a ubiquitous network of sensors and controllers to detect and diagnose incipient defects, leaks, and failures. This report is organized by tasks as detailed in the Statement of Project Objectives (SOPO). The sections all state the objective and approach before detailing results of work.

  6. The Ombudperson Initiative Group

    CERN Multimedia

    Laura Stewart

    Following many discussions that took place at some of the ATLAS Women's Network lunch gatherings, a few ATLAS women joined forces with similarly concerned CERN staff women to form a small group last Fall to discuss the need for a CERN-wide Ombudsperson. This has since evolved into the Ombudsperson Initiative Group (OIG) currently composed of the following members: Barbro Asman, Stockholm University; Pierre Charrue, CERN AB; Anna Cook, CERN IT; Catherine Delamare, CERN and IT Ombudsperson; Paula Eerola, Lund University; Pauline Gagnon, Indiana University; Eugenia Hatziangeli, CERN AB; Doreen Klem, CERN IT; Bertrand Nicquevert, CERN TS and Laura Stewart, CERN AT. On June 12, members of the OIG met with representatives of Human Resources (HR) and the Equal Opportunity Advisory Panel (EOAP) to discuss the proposal drafted by the OIG. The meeting was very positive. Everybody agreed that the current procedures at CERN applicable in the event of conflict required a thorough review, and that a professionnally trai...

  7. The Advanced Energy Initiative

    Science.gov (United States)

    Milliken, JoAnn; Joseck, Fred; Wang, Michael; Yuzugullu, Elvin

    The President's Advanced Energy Initiative (AEI), launched in 2006, addresses the challenges of energy supply and demand facing our Nation by supporting research and development of advanced technologies for transportation and stationary power generation. The AEI portfolio includes clean coal, nuclear and renewable energy technologies (solar and wind) for stationary power generation and advanced battery technologies, cellulosic ethanol as a fuel and hydrogen fuel cells for transportation. These research and development programs are underpinned by comprehensive life-cycle analysis efforts using models such as Hydrogen Analysis (H2A) and Greenhouse Gases, Regulated Emissions and Energy Use in Transportation (GREET) to enable a better understanding of the characteristics and trade-offs associated with advanced energy options and to help decision makers choose viable pathways for clean, reliable and affordable energy.

  8. Little Angels for Peace

    Institute of Scientific and Technical Information of China (English)

    1999-01-01

    IT was an unusual Saturday this summer.Many Chinese childrenand their parents met the 15 American and Japanese children of thedelegation of Children As The Peacemakers Foundation fromAmerica, there with their mothers,fathers,grandmothers andgrandfathers at the China National Children’s Center in Beijing.

  9. Healing Angels From China

    Institute of Scientific and Technical Information of China (English)

    DING YING

    2011-01-01

    One Sunday in early August,Chen Zhufeng,chief of a Chinese medical team in Tanzania,drove to check the water supply for his members in Tabora,a water-is-life place in Tanzania.Walking by a small reservoir,he was stopped by an old woman.She held up several eggs in her hands,begging Chen to accept them.

  10. Cyber-angel

    DEFF Research Database (Denmark)

    Guglielmi, Michel; Serafin, Stefania

    2004-01-01

    body. Those phenomena are particularly well described in the tantric literature Our project on which we have worked those last month at the department of medialogy at the University of Ålborg takes a poetical approach to apprehend such esoteric experiences..We wish to give the opportunity to ?normal...

  11. Healing Angels From China

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Medical teams from China fight death and disease in the harshest environments in Africa One Sunday in early August,Chen Zhufeng,chief of a Chinese medical team in Tanzania,drove to check the water supply for his members in Tabora,a water-is-life place in Tanzania. Walking by a small reservoir,he was stopped by an old woman. She held up several eggs in her hands,begging Chen to accept them.

  12. Angels%天使

    Institute of Scientific and Technical Information of China (English)

    Taylor Gramps

    2004-01-01

    @@ A cool breeze floated in through the window of Room 459 causing Maria to shiver. It was cold for November, but she didn't care to shut the window. she didn't dare move, to bread the heavy silence that hung between her and her best friend, Tommy. He shifted uncomfortably while she adiusted her white kneesock, Maria was lost inside her own mind and thoughts of what used to be. She was trying so hard to understand what had gone wrong. They had started off the year so close, but ended up so far apart. All she wanted was an explanation of what had gone wrong, and an assurance that they were still close, still best friends.

  13. CERN's Guardian Angels

    CERN Multimedia

    2002-01-01

    Any trouble at CERN? The Technical Control Room operates the entire technical infrastructure of CERN every day, all year long. They deal with problems that go from simple water leaks to devastating power cuts.   The Technical Control Room with Kenneth Olesen and Mark Harvey, minutes before their starting time. This big room is probably the liveliest at CERN, since there's always someone there, everyday, all year long. Laurent Randot and Eric Lienard working in the Technical Control Room at CERN in building 212. They've started at 7 a.m. and today has been a relatively quiet day. There have been some microcuts in the electric net because of the wind. But these have been repaired rather quickly... The relief: It's 2.30 p.m. Time for Laurent Randot and Eric Lienard to show their colleagues Mark Harvey and Kenneth Olesen what has been going on during the morning. They are the next TCR team of the day. Mark Harvey and Kenneth Olesen start their working day. They will work until 11p.m., when another team wil...

  14. Angels or Demons

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    The roles and motives of the big three rating agencies need to be reconsidered Following the global financial crisis in 2008,rating agencies Moody’s,Standard&Poor’s and Fitch Ratings came under the limelight.They were deeply implicated in the sub-prime

  15. The Woodwork Angel

    Institute of Scientific and Technical Information of China (English)

    VardaOne; 叶建平

    2004-01-01

    My teeth screamed. I couldn't neglect them any longer. I finally ignored my fear of dentists and decided to get them fixed. But how? I was a college sophomore (大学二年级学生) and barely supported myself with parttime jobs.

  16. Angel%天使

    Institute of Scientific and Technical Information of China (English)

    Maria Raha

    2007-01-01

    @@ Sitting on the drippy, cold steps of Penn Station,sharing a smoke with a boyfriend. This Saturday night is scattered with drunks, and for once, we are not the drunkest; we do not smell the worst. Late-night,paranoid tourists don't even stare-a few ask for directions. We are spreading our wet, waiting bodies all over that stone, watching stumbling silhouettes wrestle with the escalator.

  17. me and my Angel

    Institute of Scientific and Technical Information of China (English)

    1998-01-01

    MY dream of being a university student vanished like soap bubbles when I failed the national examination for higher education. Saying goodbye to the high school in town, I returned to the village where I had been born and brought up. The prosaic rural life seemed to be my destiny, but I had no desire to watch my youth slip away in commonplace pursuits. I loved to read books and newspapers, and even kept up my habit of writing my diary. I still had my

  18. Descending with Angels

    DEFF Research Database (Denmark)

    Suhr, Christian

    2014-01-01

    , and directed by Christian Suhr Produced by Persona Film, November 2013 Distribution: Documentary Educational Resources (DER, Watertown) Screening format: DCP / Blu-ray / ProRes / Mpeg4 / DVD / DV SP. Original format: XDCAM 1080p Languages: Arabic, Danish, English Subtitles: English...

  19. MONTANA PALLADIUM RESEARCH INITIATIVE

    Energy Technology Data Exchange (ETDEWEB)

    Peters, John; McCloskey, Jay; Douglas, Trevor; Young, Mark; Snyder, Stuart; Gurney, Brian

    2012-05-09

    Project Objective: The overarching objective of the Montana Palladium Research Initiative is to perform scientific research on the properties and uses of palladium in the context of the U.S. Department of Energy's Hydrogen, Fuel Cells and Infrastructure Technologies Program. The purpose of the research will be to explore possible palladium as an alternative to platinum in hydrogen-economy applications. To achieve this objective, the Initiatives activities will focus on several cutting-edge research approaches across a range of disciplines, including metallurgy, biomimetics, instrumentation development, and systems analysis. Background: Platinum-group elements (PGEs) play significant roles in processing hydrogen, an element that shows high potential to address this need in the U.S. and the world for inexpensive, reliable, clean energy. Platinum, however, is a very expensive component of current and planned systems, so less-expensive alternatives that have similar physical properties are being sought. To this end, several tasks have been defined under the rubric of the Montana Palladium Research Iniative. This broad swath of activities will allow progress on several fronts. The membrane-related activities of Task 1 employs state-of-the-art and leading-edge technologies to develop new, ceramic-substrate metallic membranes for the production of high-purity hydrogen, and develop techniques for the production of thin, defect-free platinum group element catalytic membranes for energy production and pollution control. The biomimetic work in Task 2 explores the use of substrate-attached hydrogen-producing enzymes and the encapsulation of palladium in virion-based protein coats to determine their utility for distributed hydrogen production. Task 3 work involves developing laser-induced breakdown spectroscopy (LIBS) as a real-time, in situ diagnostic technique to characterize PGEs nanoparticles for process monitoring and control. The systems engineering work in task 4

  20. ALOS-2 initial results

    Science.gov (United States)

    Kankaku, Yukihiro; Suzuki, Shinichi; Shimada, Masanobu

    2015-10-01

    The Advanced Land Observing Satellite-2 (ALOS-2) was launched from Tanegashima Space Center by H-IIA rocket successfully on 24th May 2014. ALOS-2 carries the Phased Array type L-band Synthetic Aperture Radar-2 (PALSAR-2) as the state-of-the-art L-band SAR system which succeeds to PALSAR onboard ALOS. PALSAR-2 uses almost whole bandwidth allocated for L-band active sensor of Earth Exploration Satellites Service specified by the Radio Regulation in order to realize the high resolution observation, and also, it transmits more than 6 kW power for lower Noise Equivalent Sigma Zero using 180 TRMs driven by Gallium Nitride (GaN) amplifier which is the first use in space. Furthermore, because ALOS-2 carries the SAR system only, PALSAR-2 antenna can be mounted under the satellite body. It enables to observe right-/left-looking observation by satellite maneuvering. And the high accuracy orbit control to maintain the satellite within 500 m radius tube against the reference orbit enables high coherence for the InSAR processing. Using these new technologies, ALOS-2 has been operating to fulfill the mission requirements such as disaster monitoring and so on. This document introduces the initial result of ALOS-2 from the first year operation.

  1. Scientific Component Technology Initiative

    Energy Technology Data Exchange (ETDEWEB)

    Kohn, S; Bosl, B; Dahlgren, T; Kumfert, G; Smith, S

    2003-02-07

    The laboratory has invested a significant amount of resources towards the development of high-performance scientific simulation software, including numerical libraries, visualization, steering, software frameworks, and physics packages. Unfortunately, because this software was not designed for interoperability and re-use, it is often difficult to share these sophisticated software packages among applications due to differences in implementation language, programming style, or calling interfaces. This LDRD Strategic Initiative investigated and developed software component technology for high-performance parallel scientific computing to address problems of complexity, re-use, and interoperability for laboratory software. Component technology is an extension of scripting and object-oriented software development techniques that specifically focuses on the needs of software interoperability. Component approaches based on CORBA, COM, and Java technologies are widely used in industry; however, they do not support massively parallel applications in science and engineering. Our research focused on the unique requirements of scientific computing on ASCI-class machines, such as fast in-process connections among components, language interoperability for scientific languages, and data distribution support for massively parallel SPMD components.

  2. The new childcare initiative

    CERN Multimedia

    Cigdem Issever

    The ATLAS Women's Network recently sent out a general mailing to all ATLAS and CMS members to announce a new initiative aimed at improving childcare facilities for Users coming to CERN. Several people have expressed the need that CERN should provide or facilitate affordable day care for children of temporary visitors at CERN. The ATLAS Women's Network is now forming a child care task force from concerned people and invites all those interested to join this effort. You can do so by either adding your name to the mailing list cern-users-childcare@cern.ch in Simba or by contacting Cigdem.Issever@cern.NOSPAM.ch and Pauline.Gagnon@cern.NOSPAM.ch. More than 50 people have already joined this effort. Those who have joined the mailing list will soon receive all the details about the next conference call meeting which has been scheduled for Thursday October 25th from 16:30 to 18:00 CERN time. The preliminary agenda is the following: Summary of our first contact of ATLAS and CMS (5 min) Discussion about the co-conv...

  3. TFTR initial operations

    International Nuclear Information System (INIS)

    The Tokamak Fusion Test Reactor (TFTR) has operated since December 1982 with ohmically heated plasmas. Routine operation with feedback control of plasma current, position, and density has been obtained for plasmas with I/sub p/ approx. = 800 kA, a = 68 cm, R = 250 cm, and B/sub t/ = 27 kG. A maximum plasma current of 1 MA was achieved with q approx. = 2.5. Energy confinement times of approx. 150 msec were measured for hydrogen and deuterium plasmas with anti n/sub e/ approx. = 2 x 1013 cm-3, T/sub e/ (0) approx. = 1.5 keV, T/sub i/ (0) approx. = 1.5 keV, and Z/sub eff/ approx. = 3. The preliminary results suggest a size-cubed scaling from PLT and are consistent with Alcator C scaling where tau approx. nR2a. Initial measurements of plasma disruption characteristics indicate current decay rates of approx. 800 kA in 8 ms which is within the TFTR design requirement of 3 MA in 3 ms

  4. The Urban Leaders Adaptation Initiative: Climate Resilient Local Governments

    Science.gov (United States)

    Foster, J. G.

    2008-12-01

    Local governments, the first responders to public health, safety and environmental hazards, must act now to lessen vulnerabilities to climate change. They must plan for and invest in "adapting" to inevitable impacts such as flood, fire, and draught that will occur notwithstanding best efforts to mitigate climate change. CCAP's Urban Leaders Adaptation Initiative is developing a framework for informed decision making on climate adaptation. Looking ahead to projected climate impacts and 'back casting' can identify what is needed now to both reduce greenhouse gas emissions and build local resiliency to climate change. CCAP's partnership with King County (WA), Chicago, Los Angeles, Miami-Dade County (FL), Milwaukee, Nassau County (NY), Phoenix, San Francisco, and Toronto is advancing policy discussions to ensure that state and local governments consider climate change when making decisions about infrastructure, transportation, land use, and resource management. Through the Initiative, local leaders will incorporate climate change into daily urban management and planning activities, proactively engage city and county managers and the public in developing solutions, and build community resilience. One goal is to change both institutional and public attitudes and behaviors. Determining appropriate adaptation strategies for each jurisdiction requires Asking the Climate Question: "How does what we are doing increase our resilience to climate change?" Over the next three years, the Initiative will design and implement specific adaptation plans, policies and 'catalytic' projects, collect and disseminate "best practices," and participate in framing national climate policy discussions. In the coming years, policy-makers will have to consider climate change in major infrastructure development decisions. If they are to be successful and have the resources they need, national climate change policy and emerging legislation will have to support these communities. The Urban Leaders

  5. Modeling the formation and aging of secondary organic aerosols in Los Angeles during CalNex 2010

    Directory of Open Access Journals (Sweden)

    P. L. Hayes

    2014-12-01

    Full Text Available Four different parameterizations for the formation and evolution of secondary organic aerosol (SOA are evaluated using a 0-D box model representing the Los Angeles Metropolitan Region during the CalNex 2010 field campaign. We constrain the model predictions with measurements from several platforms and compare predictions with particle and gas-phase observations from the CalNex Pasadena ground site. That site provides a unique opportunity to study aerosol formation close to anthropogenic emission sources with limited recirculation. The model SOA formed only from the oxidation of VOCs (V-SOA is insufficient to explain the observed SOA concentrations, even when using SOA parameterizations with multi-generation oxidation that produce much higher yields than have been observed in chamber experiments, or when increasing yields to their upper limit estimates accounting for recently reported losses of vapors to chamber walls. The Community Multiscale Air Quality (WRF-CMAQ model (version 5.0.1 provides excellent predictions of secondary inorganic particle species but underestimates the observed SOA mass by a factor of 25 when an older VOC-only parameterization is used, which is consistent with many previous model-measurement comparisons for pre-2007 anthropogenic SOA modules in urban areas. Including SOA from primary semi-volatile and intermediate volatility organic compounds (P-S/IVOCs following the parameterizations of Robinson et al. (2007, Grieshop et al. (2009, or Pye and Seinfeld (2010 improves model/measurement agreement for mass concentration. When comparing the three parameterizations, the Grieshop et al. (2009 parameterization more accurately reproduces both the SOA mass concentration and oxygen-to-carbon ratio inside the urban area. Our results strongly suggest that other precursors besides VOCs, such as P-S/IVOCs, are needed to explain the observed SOA concentrations in Pasadena. All the parameterizations over-predict urban SOA formation at

  6. European nuclear education initiatives

    International Nuclear Information System (INIS)

    Whatever option regarding their future nuclear energy development is chosen by European Union Member States, the availability of a sufficient number of well trained and experienced staff is key for the responsible use of nuclear energy. This is true in all areas including design, construction, operation, decommissioning, fuel cycle and waste management as well as radiation protection. Given the high average age of existing experts leading to a significant retirement induce a real risk of the loss of nuclear competencies in the coming years. Therefore the demand of hiring skilled employees is rising. The challenge of ensuring a sufficient number of qualified staff in the nuclear sector has been acknowledged widely among the different stakeholders, in particular the nuclear industry, national regulatory authorities and Technical Support Organisations (TSOs). Already the EURATOM Treaty refers explicitly to the obligation for the Commission to carry out training actions. Recently initiatives have been launched at EU level to facilitate and strengthen the efforts of national stakeholders. The European Nuclear Education Network (ENEN) Association aims at preservation and further development of expertise in the nuclear field by higher education and training. The goal of the European Nuclear Energy Leadership Academy (ENELA) is to educate future leaders in the nuclear field to ensure the further development of sustainable European nuclear energy solutions The European Nuclear Energy Forum (ENEF) is a platform operated by the European Commission for a broad discussion on the opportunities and risks of nuclear energy. The nuclear programs under investigation in the Joint Research Center (JRC) are increasingly contributing to Education and Training (E and T) initiatives, promoting a better cooperation between key players and universities as well as operators and regulatory bodies in order to mutually optimise their training programmes. Another objective is to increase

  7. Initial Cladding Condition

    International Nuclear Information System (INIS)

    The purpose of this analysis is to describe the condition of commercial Zircaloy clad fuel as it is received at the Yucca Mountain Project (YMP) site. Most commercial nuclear fuel is encased in Zircaloy cladding. This analysis is developed to describe cladding degradation from the expected failure modes. This includes reactor operation impacts including incipient failures, potential degradation after reactor operation during spent fuel storage in pool and dry storage and impacts due to transportation. Degradation modes include cladding creep, and delayed hydride cracking during dry storage and transportation. Mechanical stresses from fuel handling and transportation vibrations are also included. This Analysis and Model Report (AMR) does not address any potential damage to assemblies that might occur at the YMP surface facilities. Ranges and uncertainties have been defined. This analysis will be the initial boundary condition for the analysis of cladding degradation inside the repository. In accordance with AP-2.13Q, ''Technical Product Development Planning'', a work plan (CRWMS M andO 2000c) was developed, issued, and utilized in the preparation of this document. There are constraints, caveats and limitations to this analysis. This cladding degradation analysis is based on commercial Pressurized Water Reactor (PWR) fuel with Zircaloy cladding but is applicable to Boiling Water Reactor (BWR) fuel. Reactor operating experience for both PWRs and BWRs is used to establish fuel reliability from reactor operation. It is limited to fuel exposed to normal operation and anticipated operational occurrences (i.e. events which are anticipated to occur within a reactor lifetime), and not to fuel that has been exposed to severe accidents. Fuel burnup projections have been limited to the current commercial reactor licensing environment with restrictions on fuel enrichment, oxide coating thickness and rod plenum pressures. The information provided in this analysis will be used in

  8. The MEGAPIE Initiative

    International Nuclear Information System (INIS)

    MEGAPIE (Megawatt Pilot Experiment) is a joint initiative by Commissariat a l'Energie Atomique (CEA), France, Forschungszentrum Karlsruhe (FZK), Germany, and Paul Scherrer Institut (PSI), Switzerland, to design, build, operate and explore a liquid lead-bismuth spallation target for 1MW of beam power, taking advantage of the existing spallation neutron facility SINQ at PSI. Such a target based on an eutectic mixture with a melting point as low as 125 oC and a boiling point as high as 1670 oC is the preferred concept in several studies aiming at utilising accelerators to drive subcritical assemblies in order to transmute long lived nuclear waste into shorter lived isotopes in an effort to ease problems of long term storage and final disposal. MEGAPIE will be an essential step towards demonstrating the feasibility of the coupling of a high power accelerator, a spallation target and a subcritical assembly. It will specifically address one of the most critical issues, namely the behaviour of a liquid metal target under realistic operating conditions. As an intensely instrumented pilot experiment it will provide valuable data for benchmarking of frequently used computer codes and will allow to gain important experience in the safe handling of components that have been irradiated with PbBi. It will be installed at the ring cyclotron at PSI with 590 MeV proton energy and a continuous current of 1.8 mA. The basic concept of the MEGAPIE target as well as the definition of the project phases and of the supporting research and development activities at the participating laboratories are described in the present report

  9. Initiatives of Ecological Responsibility

    Directory of Open Access Journals (Sweden)

    Roman Sergeevich Volodin

    2015-12-01

    Full Text Available Preservation of environment is one of the global problems for the mankind. The concept of sustainable development presented at the governmental level in 1987 urged to fix at the interstate level the basic principles of development of humanity in harmony with the nature. The Charter signed in 1991 “Business and sustainable development” proclaimed a new stage of development of world entrepreneurship – business had to become ecologicallyoriented and to form the ecologically-oriented demand. In recent years it is possible to state the huge growth of technologies of effective environmental management, energy saving and energy efficiency. The leading world corporations include reduction of the ecological aspects in priority strategic objectives, as much as possible promoting transition to the use of green technologies. “Green” experience of the Western companies showed that reduction of influence on environment is not only the task of the state, but also the effective instrument to increase competitiveness of the organization. Besides the growth of favorable perception of the company by consumers, it receives considerable decrease in prime cost of the made production or the rendered services due to effective and economical use of natural resources. Russia is among the first countries who accepted the concept of sustainable development at the legislative level, nevertheless, only recently we can note that technologies of rational environmental management, energy saving and energy efficiency became one of priority problems of its development. In the present article the advanced methods of the state and private initiatives in the field of ecological responsibility are considered, and the methods of overcoming the new challenges are offered.

  10. Initial Cladding Condition

    Energy Technology Data Exchange (ETDEWEB)

    E. Siegmann

    2000-08-22

    The purpose of this analysis is to describe the condition of commercial Zircaloy clad fuel as it is received at the Yucca Mountain Project (YMP) site. Most commercial nuclear fuel is encased in Zircaloy cladding. This analysis is developed to describe cladding degradation from the expected failure modes. This includes reactor operation impacts including incipient failures, potential degradation after reactor operation during spent fuel storage in pool and dry storage and impacts due to transportation. Degradation modes include cladding creep, and delayed hydride cracking during dry storage and transportation. Mechanical stresses from fuel handling and transportation vibrations are also included. This Analysis and Model Report (AMR) does not address any potential damage to assemblies that might occur at the YMP surface facilities. Ranges and uncertainties have been defined. This analysis will be the initial boundary condition for the analysis of cladding degradation inside the repository. In accordance with AP-2.13Q, ''Technical Product Development Planning'', a work plan (CRWMS M&O 2000c) was developed, issued, and utilized in the preparation of this document. There are constraints, caveats and limitations to this analysis. This cladding degradation analysis is based on commercial Pressurized Water Reactor (PWR) fuel with Zircaloy cladding but is applicable to Boiling Water Reactor (BWR) fuel. Reactor operating experience for both PWRs and BWRs is used to establish fuel reliability from reactor operation. It is limited to fuel exposed to normal operation and anticipated operational occurrences (i.e. events which are anticipated to occur within a reactor lifetime), and not to fuel that has been exposed to severe accidents. Fuel burnup projections have been limited to the current commercial reactor licensing environment with restrictions on fuel enrichment, oxide coating thickness and rod plenum pressures. The information provided in this analysis

  11. Initial Radionuclide Inventories

    International Nuclear Information System (INIS)

    The purpose of this analysis is to provide an initial radionuclide inventory (in grams per waste package) and associated uncertainty distributions for use in the Total System Performance Assessment for the License Application (TSPA-LA) in support of the license application for the repository at Yucca Mountain, Nevada. This document is intended for use in postclosure analysis only. Bounding waste stream information and data were collected that capture probable limits. For commercially generated waste, this analysis considers alternative waste stream projections to bound the characteristics of wastes likely to be encountered using arrival scenarios that potentially impact the commercial spent nuclear fuel (CSNF) waste stream. For TSPA-LA, this radionuclide inventory analysis considers U.S. Department of Energy (DOE) high-level radioactive waste (DHLW) glass and two types of spent nuclear fuel (SNF): CSNF and DOE-owned (DSNF). These wastes are placed in two groups of waste packages: the CSNF waste package and the codisposal waste package (CDSP), which are designated to contain DHLW glass and DSNF, or DHLW glass only. The radionuclide inventory for naval SNF is provided separately in the classified ''Naval Nuclear Propulsion Program Technical Support Document'' for the License Application. As noted previously, the radionuclide inventory data presented here is intended only for TSPA-LA postclosure calculations. It is not applicable to preclosure safety calculations. Safe storage, transportation, and ultimate disposal of these wastes require safety analyses to support the design and licensing of repository equipment and facilities. These analyses will require radionuclide inventories to represent the radioactive source term that must be accommodated during handling, storage and disposition of these wastes. This analysis uses the best available information to identify the radionuclide inventory that is expected at the last year of last emplacement, currently identified as

  12. Gauging without initial symmetry

    Science.gov (United States)

    Kotov, Alexei; Strobl, Thomas

    2016-01-01

    The gauge principle is at the heart of a good part of fundamental physics: Starting with a group G of so-called rigid symmetries of a functional defined over space-time Σ, the original functional is extended appropriately by additional Lie(G) -valued 1-form gauge fields so as to lift the symmetry to Maps(Σ , G) . Physically relevant quantities are then to be obtained as the quotient of the solutions to the Euler-Lagrange equations by these gauge symmetries. In this article we show that one can construct a gauge theory for a standard sigma model in arbitrary space-time dimensions where the target metric is not invariant with respect to any rigid symmetry group, but satisfies a much weaker condition: It is sufficient to find a collection of vector fields va on the target M satisfying the extended Killing equationv a(i ; j) = 0 for some connection acting on the index a. For regular foliations this is equivalent to requiring the conormal bundle to the leaves with its induced metric to be invariant under leaf-preserving diffeomorphisms of M, which in turn generalizes Riemannian submersions to which the notion reduces for smooth leaf spaces M / ∼. The resulting gauge theory has the usual quotient effect with respect to the original ungauged theory: in this way, much more general orbits can be factored out than usually considered. In some cases these are orbits that do not correspond to an initial symmetry, but still can be generated by a finite-dimensional Lie group G. Then the presented gauging procedure leads to an ordinary gauge theory with Lie algebra valued 1-form gauge fields, but showing an unconventional transformation law. In general, however, one finds that the notion of an ordinary structural Lie group is too restrictive and should be replaced by the much more general notion of a structural Lie groupoid.

  13. Sustainable Forest Bioenergy Initiative

    Energy Technology Data Exchange (ETDEWEB)

    Breger, Dwayne; Rizzo, Rob

    2011-09-20

    In the state’s Electricity Restructuring Act of 1998, the Commonwealth of Massachusetts recognized the opportunity and strategic benefits to diversifying its electric generation capacity with renewable energy. Through this legislation, the Commonwealth established one of the nation’s first Renewable Energy Portfolio Standard (RPS) programs, mandating the increasing use of renewable resources in its energy mix. Bioenergy, meeting low emissions and advanced technology standards, was recognized as an eligible renewable energy technology. Stimulated by the state’s RPS program, several project development groups have been looking seriously at building large woody biomass generation units in western Massachusetts to utilize the woody biomass resource. As a direct result of this development, numerous stakeholders have raised concerns and have prompted the state to take a leadership position in pursuing a science based analysis of biomass impacts on forest and carbon emissions, and proceed through a rulemaking process to establish prudent policy to support biomass development which can contribute to the state’s carbon reduction commitments and maintain safeguards for forest sustainability. The Massachusetts Sustainable Forest Bioenergy Initiative (SFBI) was funded by the Department of Energy and started by the Department of Energy Resources before these contentious biomass issues were fully raised in the state, and continued throughout the substantive periods of this policy development. Thereby, while SFBI maintained its focus on the initially proposed Scope of Work, some aspects of this scope were expanded or realigned to meet the needs for groundbreaking research and policy development being advanced by DOER. SFBI provided DOER and the Commonwealth with a foundation of state specific information on biomass technology and the biomass industry and markets, the most comprehensive biomass fuel supply assessment for the region, the economic development impact

  14. 2015 NOAA Ortho-rectified Color Mosaic of Los Angeles and Long Beach, California: Integrated Ocean and Coastal Mapping Product

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains ortho-rectified mosaic tiles, created as a product from the NOAA Integrated Ocean and Coastal Mapping (IOCM) initiative. The source imagery...

  15. Nursing Facility Initiative Annual Report

    Data.gov (United States)

    U.S. Department of Health & Human Services — This annual report summarizes impacts from the Initiative to Reduce Avoidable Hospitalizations among Nursing Facility Residents in 2014. This initiative is designed...

  16. National Take-Back Initiative

    Science.gov (United States)

    ... Physicians Drug Disposal Information Drug and Chemical Information E-commerce Initiatives Federal Agencies & Related Links Federal Register Notices ... Physicians Drug Disposal Information Drug and Chemical Information E-commerce Initiatives Federal Agencies & Related Links Federal Register Notices ...

  17. A Two-Generation Study of Body Mass Index, Energy Balance and Specific Physical Activity of College Students and Their Respective Parents Living in the Same Household at Los Angeles, California, U.S.A.

    Science.gov (United States)

    Liang, Ying; Lee, Judy; Tam, Chick F.; Bridges, Elizabeth; Keating, Xiaofen D.

    2007-01-01

    The purpose was to compare the differences in body mass index (BMI), energy balance (EB) and specific physical activity (SPA) between 30 CSULA college students (Y) and their respective parents (O) living in the same household at Los Angeles, California, U.S.A. Each student completed a 24-hour dietary record with SPA journal, and the same for…

  18. Perspectives of Central Office Staff, Principals, Teachers, and School Site Councils on Resource Allocation and "Budgeting for Student Achievement" Implementation in 2010-11. A Report Prepared for the Los Angeles Unified School District

    Science.gov (United States)

    Haxton, Clarisse L.; Chambers, Jay G.; Manship, Karen; Cruz, Lisa; O'Neil, Caitlin

    2012-01-01

    As part of the evaluation of the Strategic School Funding for Results (SSFR) project (called Budgeting for Student Success, or BSA, in Los Angeles Unified School District), the American Institutes for Research (AIR) conducted surveys of principals, teachers, and members of School Site Councils (SSCs) to gather information on their attitudes and…

  19. Geodesy-based estimates of loading rates on faults beneath the Los Angeles basin with a new, computationally efficient method to model dislocations in 3D heterogeneous media

    Science.gov (United States)

    Rollins, C.; Argus, D. F.; Avouac, J. P.; Landry, W.; Barbot, S.

    2015-12-01

    North-south compression across the Los Angeles basin is accommodated by slip on thrust faults beneath the basin that may present significant seismic hazard to Los Angeles. Previous geodesy-based efforts to constrain the distributions and rates of elastic strain accumulation on these faults [Argus et al 2005, 2012] have found that the elastic model used has a first-order impact on the inferred distribution of locking and creep, underlining the need to accurately incorporate the laterally heterogeneous elastic structure and complex fault geometries of the Los Angeles basin into this analysis. We are using Gamra [Landry and Barbot, in prep.], a newly developed adaptive-meshing finite-difference solver, to compute elastostatic Green's functions that incorporate the full 3D regional elastic structure provided by the SCEC Community Velocity Model. Among preliminary results from benchmarks, forward models and inversions, we find that: 1) for a modeled creep source on the edge dislocation geometry from Argus et al [2005], the use of the SCEC CVM material model produces surface velocities in the hanging wall that are up to ~50% faster than those predicted in an elastic halfspace model; 2) in sensitivity-modulated inversions of the Argus et al [2005] GPS velocity field for slip on the same dislocation source, the use of the CVM deepens the inferred locking depth by ≥3 km compared to an elastic halfspace model; 3) when using finite-difference or finite-element models with Dirichlet boundary conditions (except for the free surface) for problems of this scale, it is necessary to set the boundaries at least ~100 km away from any slip source or data point to guarantee convergence within 5% of analytical solutions (a result which may be applicable to other static dislocation modeling problems and which may scale with the size of the area of interest). Here we will present finalized results from inversions of an updated GPS velocity field [Argus et al, AGU 2015] for the inferred

  20. Initial Data for Numerical Relativity

    OpenAIRE

    Cook Greg

    2000-01-01

    Initial data are the starting point for any numerical simulation. In the case of numerical relativity, Einstein's equations constrain our choices of these initial data. We will examine several of the formalisms used for specifying Cauchy initial data in the 3+1 decomposition of Einstein's equations. We will then explore how these formalisms have been used in constructing initial data for spacetimes containing black holes and neutron stars. In the topics discussed, emphasis is placed on those ...

  1. Graduates and initial employment.

    Science.gov (United States)

    Rydon, Sharon Elizabeth; Rolleston, Anna; Mackie, Joan

    2008-07-01

    This research project was undertaken to inform nurse educators in the Department of Nursing and Health Studies of Manukau Institute of Technology of the employment opportunities for new graduate nurses emerging from the three year degree and registration programme. The research study aimed to contribute evidence for informed discussion when issues around curriculum development arose, particularly those issues that affect employment success of graduates. A literature review was undertaken of local and international studies and this highlighted a number of studies that examined the experience of new graduates in employment. There was however little evidence that studies had focused on the experiences of graduates as they initially sought employment or their perceptions of how their ability to successfully gain employment was linked to the nursing programme they were exiting from. The data collection tool was a survey consisting of a number of closed questions which required respondents to indicate the option most closely fitting their experience. Analysis of these results was undertaken using SPSS. The last section of the survey invited respondents to comment on any aspect of the focus of the study and qualitative analysis was undertaken of these comments. Graduates from the programme for the previous three years were targeted and names and addresses were available from departmental and institute databases. The research was submitted to the MIT Research and Ethics Committee who stated that the project did not require ethical approval as a retrospective, anonymous survey. 89.8% of graduates across the three years were successful in gaining employment in the first three months post registration. The number of graduates employed within a District Health Board (DHB) declined across the three years but there were no significant differences between cohorts. Overall, 73% of graduates were employed into new graduate positions. The majority of graduates felt that their

  2. Citizen participation and citizen initiatives

    International Nuclear Information System (INIS)

    Contents: Social conditions for citizen initiatives - technical change and employment - crisis behaviour - socio-psychological analysis of political planning; legitimation - presentation and criticism - conditions for citizen initiatives coming into being within the field of tension citizen : administration - legal problems of citizen initiatives - environmental protection in the energy discussion; participation; models. (HP)

  3. EXPERIENCES WITH IDEA PROMOTING INITIATIVES

    DEFF Research Database (Denmark)

    Gish, Liv

    In new product development a central activity is to provide new ideas. Over the last decades experiences with stimulating employee creativity and establishing idea promoting initiatives have been made in industrial practice. Such initiatives are often labeled Idea Management – a research field with...... a growing interest. In this paper I examine three different idea promoting initiatives carried out in Grundfos, a leading pump manufacturer. In the analysis I address what understandings of idea work are inscribed in the initiatives and what role these initiatives play in the organization with...

  4. EXPERIENCES WITH IDEA PROMOTING INITIATIVES

    DEFF Research Database (Denmark)

    Gish, Liv

    2011-01-01

    In new product development a central activity is to provide new ideas. Over the last decades experiences with stimulating employee creativity and establishing idea promoting initiatives have been made in industrial practice. Such initiatives are often labeled Idea Management – a research field with...... a growing interest. In this paper I examine three different idea promoting initiatives carried out in Grundfos, a leading pump manufacturer. In the analysis I address what understandings of idea work are inscribed in the initiatives and what role these initiatives play in the organization with...

  5. Business interruption impacts of a terrorist attack on the electric power system of Los Angeles: customer resilience to a total blackout.

    Science.gov (United States)

    Rose, Adam; Oladosu, Gbadebo; Liao, Shu-Yi

    2007-06-01

    Regional economies are highly dependent on electricity, thus making their power supply systems attractive terrorist targets. We estimate the largest category of economic losses from electricity outages-business interruption-in the context of a total blackout of electricity in Los Angeles. We advance the state of the art in the estimation of the two factors that strongly influence the losses: indirect effects and resilience. The results indicate that indirect effects in the context of general equilibrium analysis are moderate in size. The stronger factor, and one that pushes in the opposite direction, is resilience. Our analysis indicates that electricity customers have the ability to mute the potential shock to their business operations by as much as 86%. Moreover, market resilience lowers the losses, in part through the dampening of general equilibrium effects. PMID:17640205

  6. Design the organizational model for the creation of a radiation protection service in hospitals Rafael Angel Calderon Guardia, San Juan de Dios and Mexico

    International Nuclear Information System (INIS)

    The search for new ways to protect occupationally exposed population, external users and the environment has been the need to optimize all aspects of radiation protection, to prevent incidents or accidents, by the use of ionizing radiation. Proposal consists in carrying out field work to be involving staff who work with ionizing radiation in the areas of diagnostic radiology, radiotherapy and nuclear medicine in hospitals Rafael Angel Calderon Guardia, Hospital Mexico and Hospital San Juan de Dios. The collected data were coded and analyzed for a situational diagnosis of radiation protection. The results have led to the proposal of the Design of an Organizational Model for Radiological Protection Service to the hospitals included in the investigation. (author)

  7. Los Angeles à l'heure du postmodernisme: Morphologie du bâti et identité socio-culturelle

    OpenAIRE

    Claivaz, Gilles; Racine, Jean-Bernard

    2007-01-01

    Cette étude est introduite par un travail auto-reflexif mené sur deux sources: Los Angeles, ville post-moderne?, le séminaire qui est à l'origine de notre intérêt pour l'architecture et l'urbanisme angelino; et notre récit de voyage. L'analyse de ces deux textes a pour but de mettre en évidence les stéréotypes et images biaisées de la réalité afin qu'elles ne contaminent pas la suite de notre étude. L'hypothèse principale de notre travail est qu'il est possible de déduire l'identité socio-cul...

  8. Future energy loads for a large-scale adoption of electric vehicles in the city of Los Angeles: Impacts on greenhouse gas (GHG) emissions

    International Nuclear Information System (INIS)

    Using plug-in electric vehicles (PEVs) has become an important component of greenhouse gas (GHG) emissions reduction strategy in the transportation sector. Assessing the net effect of PEVs on GHG emissions, however, is dependent on factors such as type and scale of electricity generation sources, adoption rate, and charging behavior. This study creates a comprehensive model that estimates the energy load and GHG emissions impacts for the years 2020 and 2030 for the city of Los Angeles. For 2020, model simulations show that the PEV charging loads will be modest with negligible effects on the overall system load profile. Contrary to previous study results, the average marginal carbon intensity is higher if PEV charging occurs during off-peak hours. These results suggest that current economic incentives to encourage off-peak charging result in greater GHG emissions. Model simulations for 2030 show that PEV charging loads increase significantly resulting in potential generation shortages. There are also significant grid operation challenges as the region's energy grid is required to ramp up and down rapidly to meet PEV loads. For 2030, the average marginal carbon intensity for off-peak charging becomes lower than peak charging mainly due to the removal of coal from the power generation portfolio. - Highlights: • Future energy load from PEV charging in the city of Los Angeles is modeled. • Changes in the marginal carbon intensity of the region's electric grid are modeled. • In the short run, offpeak charging results in higher marginal carbon intensity. • There is a mismatch between emissions and economic incentives for charging

  9. Increases in the climate change adaption effectiveness and availability of vegetation across a coastal to desert climate gradient in metropolitan Los Angeles, CA, USA.

    Science.gov (United States)

    Tayyebi, Amin; Jenerette, G Darrel

    2016-04-01

    Urbanization has increased heat in the urban environment, with many consequences for human health and well-being. Managing climate change in part through increasing vegetation is desired by many cities to mitigate current and future heat related issues. However, little information is available on what influences the current effectiveness and availability of vegetation for local cooling. In this study, we identified the variation in the interacting relationships among vegetation (normalized difference vegetation index), socioeconomic status (neighborhood income), elevation and land surface temperature (LST) to identify how vegetation based surface cooling services change throughout the pronounced coastal to desert climate gradient of the Los Angeles, CA metropolitan region, a megacity of >18 million residents. A key challenge for understanding variation in vegetation as a climate change adaptation tool spanning neighborhood to megacity scales is developing new "big data" analytical tools. We used structural equation modeling (SEM) to quantify the interacting relationships among socio-economic status data obtained from government census data, elevation and new LST and vegetation data obtained from an airborne imaging campaign conducted in 2013 for the urban and suburban areas across a series of fifteen climate zones. Vegetation systematically increased in cooling effectiveness from 6.06 to 31.77 degrees with increasing distance from the coast. Vegetation and neighborhood income were positively correlated throughout all climate zones with a peak in the relationship occurring near 25km from the coast. Because of the interaction between these two relationships, we also found that higher income neighborhoods were cooler and that this effect peaked at about 30km from the coast. These results show the availability and effectiveness of vegetation on the local climate varies tremendously throughout the Los Angeles, CA metropolitan area. Further, using the more inland climate

  10. Epidemiologic study of neural tube defects in Los Angeles County. II. Etiologic factors in an area with low prevalence at birth

    Energy Technology Data Exchange (ETDEWEB)

    Sever, L.E.

    1982-01-01

    Epidemiologic characteristics of neural tube defect (NTD) births occurring in Los Angeles County, California, residents during the period 1966-1972 are presented. The prevalence at birth was 0.52/1000 births for anencephalus, 0.51/1000 for spina bifida, and 0.08/1000 for encephalocele, rates considered to be low for a predominantly white population. We hypothesized that environmental (nongenetic) factors are of less etiologic importance in a low-prevalence population than in areas or time periods with high prevalence. We tested that hypothesis by examining epidemiologic characteristics of NTDs in Los Angeles County and comparing them with high-prevalence populations. The data did not support a major etiologic role for environmental factors: (1) no significant differences between rates by month of birth or conception; (2) no significant association with maternal age or parity for anencephalus; for spina bifida a significant maternal age effect (P < 0.01) and for encephalocele a parity effect (P < 0.02); and (3) no significant relationship with father's occupational class for either anencephalus or encephalocele but a marginally significant (P < 0.05) inverse association for spina bifida when a statistic based on ordinal relationships was used. Findings supporting the importance of genetic factors in etiology included: (1) a high percentage of males; (2) a higher twin concordance rate than in high-prevalence populations; and (3) an anencephalus rate among blacks comparable with rates for blacks in other United States populations. Our findings in conjunction with those from other areas and times of low prevalence suggest environmental factors play a relatively insignificant role in the etiology of NTDs in such populations.

  11. Efficient determination of vehicle emission factors by fuel use category using on-road measurements: downward trends on Los Angeles freight corridor I-710

    Directory of Open Access Journals (Sweden)

    N. Hudda

    2013-01-01

    Full Text Available To evaluate the success of vehicle emissions regulations, trends in both fleet-wide average emissions as well as high-emitter emissions are needed, but it is challenging to capture the full spread of vehicle emission factors (EFs with chassis dynamometer or tunnel studies, and remote sensing studies cannot evaluate particulate compounds. We developed an alternative method that links real-time on-road pollutant measurements from a mobile platform with real-time traffic data, and allows efficient calculation of both the average and the spread of EFs for light-duty gasoline-powered vehicles (LDG and heavy-duty diesel-powered vehicles (HDD. This is the first study in California to report EFs under a full range of real-world driving conditions on multiple freeways. Fleet average LDG EFs were in agreement with most recent studies and an order of magnitude lower than observed HDD EFs. HDD EFs reflected the relatively rapid decreases in diesel emissions that have recently occurred in Los Angeles/California, and on I-710, a primary route used for goods movement and a focus of additional truck fleet turnover incentives, HDD EFs were often lower than on other freeways. When freeway emission rates (ER were quantified as the product of EF and vehicle miles traveled (VMT per time per mile of freeway, despite a two- to three-fold difference in HDD fractions between freeways, ERs were found to be generally similar in magnitude. Higher LDG VMT on low HDD fraction freeways largely offset the difference. Therefore, the conventional assumption that freeways with the highest HDD fractions are significantly worse sources of total emissions in Los Angeles may no longer be~true.

  12. Research on color local angel binary patterns texture feature extraction method based on GPU%基于GPU的CLABP特征提取方法研究

    Institute of Scientific and Technical Information of China (English)

    罗沛; 梁鹏

    2014-01-01

    Color local angel binary patterns (CLABP)method can extract color texture feature effectively. But the algorithm is complex and has large amount of calculation. In order to solve the problem, this paper proposes a GPU implement for color local angel binary patterns texture feature extraction and presentation. On one hand, this method use asynchronous processing way to realize CLABP parallel acceleration. On the other hand, it also improves the implement via shared memory to reduce the number of reading data. In order to verify the validity of proposed method, we compare our method with CPU implement on Outex texture dataset. The experiment results demonstrate that the acceleration rate can achieve 25 times.%彩色局部角度二值模式( CLABP )可以有效地提取彩色图像中的纹理特征,但是算法复杂、计算量大。针对这一问题,采用 GPU 实现 CLABP 特征提取和表示的并行方法。该方法一方面使用异步处理的方式实现 CLABP 的并行加速,另一方面采用共享内存的形式减少读取数据的次数。为了验证该方法的有效性,在Outex纹理图像数据库上与CPU程序性能进行对比,结果表明,GPU实现方法可以提升加速比约25倍。

  13. Florida Hydrogen Initiative

    Energy Technology Data Exchange (ETDEWEB)

    Block, David L

    2013-06-30

    The Florida Hydrogen Initiative (FHI) was a research, development and demonstration hydrogen and fuel cell program. The FHI program objectives were to develop Florida?s hydrogen and fuel cell infrastructure and to assist DOE in its hydrogen and fuel cell activities The FHI program funded 12 RD&D projects as follows: Hydrogen Refueling Infrastructure and Rental Car Strategies -- L. Lines, Rollins College This project analyzes strategies for Florida's early stage adaptation of hydrogen-powered public transportation. In particular, the report investigates urban and statewide network of refueling stations and the feasibility of establishing a hydrogen rental-car fleet based in Orlando. Methanol Fuel Cell Vehicle Charging Station at Florida Atlantic University ? M. Fuchs, EnerFuel, Inc. The project objectives were to design, and demonstrate a 10 kWnet proton exchange membrane fuel cell stationary power plant operating on methanol, to achieve an electrical energy efficiency of 32% and to demonstrate transient response time of less than 3 milliseconds. Assessment of Public Understanding of the Hydrogen Economy Through Science Center Exhibits, J. Newman, Orlando Science Center The project objective was to design and build an interactive Science Center exhibit called: ?H2Now: the Great Hydrogen Xchange?. On-site Reformation of Diesel Fuel for Hydrogen Fueling Station Applications ? A. Raissi, Florida Solar Energy Center This project developed an on-demand forecourt hydrogen production technology by catalytically converting high-sulfur hydrocarbon fuels to an essentially sulfur-free gas. The removal of sulfur from reformate is critical since most catalysts used for the steam reformation have limited sulfur tolerance. Chemochromic Hydrogen Leak Detectors for Safety Monitoring ? N. Mohajeri and N. Muradov, Florida Solar Energy Center This project developed and demonstrated a cost-effective and highly selective chemochromic (visual) hydrogen leak detector for safety

  14. Inflation with generalized initial conditions

    Energy Technology Data Exchange (ETDEWEB)

    Albrecht, A.; Brandenberger, R.; Matzner, R.

    1987-01-15

    In many current models of the early Universe a scalar field phi which is only very weakly coupled to other quantum fields is used to generate inflation. In such models there are no forces which could thermalize the scalar field, and previous assumptions about its preinflation ''initial'' conditions must be abandoned. In this paper the onset of inflation is studied classically for more general initial conditions of the scalar field configuration. In particular, initial conditions with a nonvanishing spatial average of phi, with phi chosen at random in each initial horizon volume, and with random initial momenta are considered. We identify and discuss several mechanisms that can drive these more general initial conditions toward an inflationary state. The analysis is done in one spatial dimension.

  15. Researching British university sport initiations

    OpenAIRE

    Wintrup, Glen

    2011-01-01

    This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University. The study of sport initiations is in its infancy. So far, the North American-centric research has focussed on ‘exposing and condemning’ morally unacceptable initiation activities, which are referred to as hazing. Hazing moral panics in North America has resulted in universities utilising sport initiation empirical research to construct anti-hazing policies; policies proven to be ineffective i...

  16. Self-initiated expatriate academics

    DEFF Research Database (Denmark)

    Selmer, Jan; Lauring, Jakob

    2013-01-01

    were collected from 428 self-initiated expatriate academics from 60 countries employed in 35 universities in five northern European countries. Results confirm that there are differences in terms of work outcomes among the different types of self-initiated expatriate academics, especially regarding the......In this chapter we examine self-initiated expatriate academics. Universities are to an increasing extent looking for talent beyond national boundaries. Accordingly, self-initiated expatriate academics represent a fast growing group of highly educated professionals who gain employment abroad...

  17. Distributed Pyro Initiation System Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Evaluate Current State of the Art; Define Critical Performance Requirements; Select Components; Smart Initiator or Smart Connector; Perform Detailed Cost/Benefit...

  18. Experiences in the instrumentation of power generators with the on-line analysis of generators AnGel system, for the internal insulation condition diagnosis; Experiencias en la instrumentacion de generadores de potencia con el sistema de analisis de generadores en linea AnGeL, para el diagnostico del estado del aislamiento interno

    Energy Technology Data Exchange (ETDEWEB)

    Carrillo C, Jaime; Ramirez N, Jose T. [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico)

    2009-07-01

    The instrumentation of power generators with monitoring systems on-line, allows the personnel responsible for its operation to determine the stator and rotor windings insulation condition, as well as to emit an opportune diagnosis of possible anomalies, to implant programs of predictive maintenance, to reduce costs and to increase its reliability. The experiences of the last five years in the commissioning of the AnGel System; the problematic to which these equipment is subjected to, is described within the intrinsic atmosphere of the area where they are installed in the turbo-generators and hydro-generators, and finally, the experiences in the commissioning of the monitoring systems are revised and analyzed. [Spanish] La instrumentacion de los generadores de potencia con sistemas de monitoreo en linea, permite al personal responsable de su operacion determinar el estado del aislamiento de los devanados del estator y rotor, asi como emitir un diagnostico oportuno de posibles anomalias, implantar programas de mantenimiento predictivo, reducir costos e incrementar su confiabilidad. Se presentan las experiencias de los ultimos cinco anos en la puesta en operacion del Sistema AnGeL; se describe la problematica a la que son sometidos estos equipos dentro del ambiente intrinseco del area donde se instalan en los turbogeneradores e hidrogeneradores, y por ultimo, se analizan y discuten las experiencias en la puesta en servicio de los sistemas de monitoreo.

  19. Student initiative: A conceptual analysis

    Directory of Open Access Journals (Sweden)

    Polovina Nada

    2014-01-01

    Full Text Available In the description and scientific consideration of the attitude of children and youth towards their education and development, the concept of student initiative has been gaining ground lately, and it is hence the subject of analysis in this paper. The analysis is important because of the discrepancy between the increased efforts of the key educational policy holders to promote the idea about the importance of the development of student initiative and rare acceptance of this idea among theoreticians, researchers and practitioners dealing with the education and development of children and youth. By concretising the features of initiative student behaviour, our aim was, on the one hand, to observe the structural determinants and scientific status of the very concept of an initiative student, and, on the other, to contribute to the understanding of the initiative behaviour in practice. In the first part of the paper we deal with different notions and concretisations of the features of initiative behaviour of children and youth, which includes the consideration of: basic student initiative, academic student initiative, individual student initiative, the capacity for initiative and personal development initiative. In the second part of the paper, we discuss the relations of the concept of student initiative with the similar general concepts (activity/passivity, proactivity, agency and the concepts immediately related to school environment (student involvement, student participation. The results of our analysis indicate that the concept of student initiative has: particular features that differentiate it from similar concepts; the potential to reach the status of a scientific concept, bearing in mind the initial empirical specifications and general empirical verifiability of the yet unverified determinants of the concept. In the concluding part of the paper, we discuss the implications of the conceptual analysis for further research, as well as for

  20. Los Angeles School and Its Impacts on Disciplines of Human Geography%洛杉矶学派及其对人文地理学的影响

    Institute of Scientific and Technical Information of China (English)

    孙斌栋; 魏旭红; 王婷

    2015-01-01

    Emerging at the end of 1980s, urban theorists, cultural critics and social commentators have devoted a tremendous amount of attention to the study of Los Angeles. This attention derives from the complex theoreti-cal and practical urban issues in Los Angeles, and also from the continuous competition among the power of globalization, which obviously influenced the general economic order all over the world. Los Angeles School (LA School) is constructed by a group of geography scholars, such as Edward W. Soja, Allen J. Scott, Michael J. Dear, Mike Davis et al., to generalize their systematic academic points of view. This article aims to make a de-tailed and systematic introduction to the LA school, and tries to sort out its impacts on many disciplines in the field of human geography. According to the summarization, this article supports that the LA school is based on Soja’s social-spatial dialectics theory. This theory strongly suggests that spatiality also plays a big role in the formation of social relations when the basic production mode in the era and keeps unchanged. Under this theo-retical framework, we can see that crisis and reconstruction are just the dialectic’s projection in reality, which means that crisis tends to cause urban reconstruction, and the reconstruction may lead to some new urban crisis at the same time. Los Angeles metropolitan area has provided a vivid interpretation and reasonably exemplified LA school’s basic academic points of view, as well gives us an accurate demonstration of the circulation be-tween urban crisis and reconstruction. Many views of LA School have already made an important influence on the branches of human geography, such as economic geography, urban geography and social geography, provid-ing a lot of important academic hypothesis and ideas for follow-up researches. The main contribution that the LA school has made includes the significant enrichment on the core and traditional idea of the relationship be