WorldWideScience

Sample records for social security pond

  1. Social Relation between Businessman and Community in Management of Intensive Shrimp Pond

    Science.gov (United States)

    Gumay Febryano, Indra; Sinurat, James; Lovinia Salampessy, Messalina

    2017-02-01

    Expansion of aquaculture, especially shrimp culture, is the primary cause of deforestation of mangrove along coastal zone. This phenomenon is pretty much related to social relation between businessman of intensive shrimp pond and community around coastal zone. The objective of this research is to explain social relation between businessman and community in managing intensive shrimp pond. This research is a kind of qualitative research and the method used is a case study. The result of this research shows that the behaviour of the majority of businessman of intensive shrimp pond is not accordingly with environmental concerns as they compelled conversion of mangrove and they disposed waste of shrimp pond into the sea. Such kind of behaviour caused degradation of water ecosystem and marginalizing local community. Corporate Social Responsibility (CSR) which was implemented by businessman of intensive shrimp pond in the area of social, religion, and education can downgrade the coming up of social turbulence. Otherwise, CSR in enabling economic community and environmental management was not conducted yet. CSR in environmental management can be conducted by businessman of intensive shrimp pond by considering the existence of mangrove and pond management and waste in a better way, so that environment around ponds is not polluted and the sustainability of shrimp pond business as well as income of community can be guaranteed. Accordingly with the result of this research, CSR is not only involving businessman of intensive shrimp pond and community, but also involving local government in terms of right and responsibility of citizen as well as management and development of community.

  2. Social Security Bulletin

    Data.gov (United States)

    Social Security Administration — The Social Security Bulletin (ISSN 1937-4666) is published quarterly by the Social Security Administration. The Bulletin is prepared in the Office of Retirement and...

  3. Radionuclides in bats using a contaminated pond on the Nevada National Security Site, USA

    International Nuclear Information System (INIS)

    Warren, Ronald W.; Hall, Derek B.; Greger, Paul D.

    2014-01-01

    Perched groundwater percolating through radionuclide contamination in the E Tunnel Complex on the Nevada National Security Site, formerly the Nevada Test Site, emerges and is stored in a series of ponds making it available to wildlife, including bats. Since many bat species using the ponds are considered sensitive or protected/regulated and little information is available on dose to bats from radioactive water sources, bats were sampled to determine if the dose they were receiving exceeded the United States Department of Energy dose limit of 1.0E-3 Gy/day. Radionuclide concentrations in water, sediment, and flying insects were also measured as input parameters to the dose rate model and to examine trophic level relationships. The RESRAD-Biota model was used to calculate dose rates to bats using different screening levels. Efficacy of RESRAD-Biota and suggested improvements are discussed. Dose to bats foraging and drinking at these ponds is well below the dose limit set to protect terrestrial biota populations. - Highlights: • Bats uptake radionuclides from a contaminated pond. • Tritium had highest concentrations but 137 Cs gave highest dose. • Tritium concentrations in bats are approximately one-twentieth of that in the pond. • Population level effects are not expected based on RESRAD-Biota dose estimates. • It may be more appropriate to model the bats as riparian animals in RESRAD-Biota

  4. SOCIAL MEDIA SECURITY

    Science.gov (United States)

    RESPONSIBILITY CENTCOM COALITION MEDIA SOCIAL MEDIA NEWS ARTICLES PRESS RELEASES IMAGERY VIDEOS TRANSCRIPTS VISITORS AND PERSONNEL FAMILY CENTER FAMILY READINESS CENTCOM WEBMAIL SOCIAL MEDIA SECURITY ACCOUNTABILITY HomeVISITORS AND PERSONNELSOCIAL MEDIA SECURITY FAQ on Security for Social Media Due to the widespread use of

  5. Social Security.

    Science.gov (United States)

    Social and Labour Bulletin, 1983

    1983-01-01

    This group of articles discusses a variety of studies related to social security and retirement benefits. These studies are related to both developing and developed nations and are also concerned with studying work conditions and government role in administering a democratic social security system. (SSH)

  6. Social security for seafarers globally

    DEFF Research Database (Denmark)

    Jensen, Olaf; Canals, Luisa; Haarløv, Erik

    2013-01-01

    Social security for seafarers globally Background: Social security protection is one of the essential elements of decent work. The issue is complex and no previous epidemiological studies of the coverage among seafarers have yet been performed. Objectives: The aim was to overcome the gap...... of knowledge to promote the discussion and planning of the implementation of social security for all seafarers. Methods: The seafarers completed a short questionnaire concerning their knowledge about their social security status. Results: Significant disparities of coverage of social security were pointed out...... comes from poorer countries without substantial social security systems. The solutions suggested are to implement the minimum requirements as recommended by the ILO 2006 Convention, to survey the implementation and in the long term to struggle for global social equality. Key words: Social security...

  7. Military veterans and Social Security.

    Science.gov (United States)

    Olsen, Anya

    There are 9.4 million military veterans receiving Social Security benefits, which means that almost one out of every four adult Social Security beneficiaries has served in the United States military. In addition, veterans and their families make up almost 40 percent of the adult Social Security beneficiary population. Policymakers are particularly interested in military veterans and their families and have provided them with benefits through several government programs, including Social Security credits, home loan guarantees, and compensation and pension payments through the Department of Veterans Affairs. It is therefore important to understand the economic and demographic characteristics of this population. Information in this article is based on data from the March 2004 Current Population Survey, a large, nationally representative survey of U.S. households. Veterans are overwhelmingly male compared with all adult Social Security beneficiaries who are more evenly split between males and females. Military veterans receiving Social Security are more likely to be married and to have finished high school compared with all adult Social Security beneficiaries, and they are less likely to be poor or near poor than the overall beneficiary population. Fourteen percent of veterans receiving Social Security benefits have income below 150 percent of poverty, while 25 percent of all adult Social Security beneficiaries are below this level. The higher economic status among veterans is also reflected in the relatively high Social Security benefits they receive. The number of military veterans receiving Social Security benefits will remain high over the next few decades, while their make-up and characteristics will change. In particular, the number of Vietnam War veterans who receive Social Security will increase in the coming decades, while the number of veterans from World War II and the Korean War will decline.

  8. Social Security Administration

    Science.gov (United States)

    ... Suze Orman on Why Creating an Account is Important Suze Orman explains how a my Social Security account can help you plan for your retirement ... for same-sex couples? Open Government at Social Security Explore the benefits you may be due Plain ... About Us Accessibility FOIA Open Government Glossary ...

  9. Effects of pond draining on biodiversity and water quality of farm ponds.

    Science.gov (United States)

    Usio, Nisikawa; Imada, Miho; Nakagawa, Megumi; Akasaka, Munemitsu; Takamura, Noriko

    2013-12-01

    Farm ponds have high conservation value because they contribute significantly to regional biodiversity and ecosystem services. In Japan pond draining is a traditional management method that is widely believed to improve water quality and eradicate invasive fish. In addition, fishing by means of pond draining has significant cultural value for local people, serving as a social event. However, there is a widespread belief that pond draining reduces freshwater biodiversity through the extirpation of aquatic animals, but scientific evaluation of the effectiveness of pond draining is lacking. We conducted a large-scale field study to evaluate the effects of pond draining on invasive animal control, water quality, and aquatic biodiversity relative to different pond-management practices, pond physicochemistry, and surrounding land use. The results of boosted regression-tree models and analyses of similarity showed that pond draining had little effect on invasive fish control, water quality, or aquatic biodiversity. Draining even facilitated the colonization of farm ponds by invasive red swamp crayfish (Procambarus clarkii), which in turn may have detrimental effects on the biodiversity and water quality of farm ponds. Our results highlight the need for reconsidering current pond management and developing management plans with respect to multifunctionality of such ponds. Efectos del Drenado de Estanques sobre la Biodiversidad y la Calidad del Agua en Estanques de Cultivo. © 2013 Society for Conservation Biology.

  10. Geology and History of Water-Containment Ponds at U12n, U12t, and U12e Tunnels, Rainier Mesa, Nevada National Security Site

    International Nuclear Information System (INIS)

    Huckins-Gang, H.; Townsend, M.

    2011-01-01

    Tunnels constructed in Rainier Mesa at the Nevada National Security Site (formerly Nevada Test Site) intersected water-producing areas (perched well above the regional groundwater system) during mining and drilling. There was enough overall sustained flow from three of the tunnel complexes (U12n, U12t, and U12e, also known as N-Tunnel, T-Tunnel, and E-Tunnel), that ponds were constructed in drainages below the portals to contain the discharged water. Water flow has now been blocked from N-Tunnel and T-Tunnel, and the ponds there are dry; however, E-Tunnel continues to produce water. The Underground Test Area Sub-Project of the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office is examining the possibility that contaminants from the tunnel complexes may be able to reach the regional groundwater flow system. Because some radiologically contaminated water was conveyed to these ponds, the ponds have been viewed as a potential source of groundwater contamination (in addition to the tunnel complexes themselves but part of the same hydrologic source term). Although the regional water table is very deep (greater than 305 meters [1,000 feet]) beneath the pond locations, some of the ponds were constructed on carbonate rocks, which some scientists think might provide a 'fast path' to the regional groundwater system. This report describes the geology and hydrologic conditions in the area of these three sets of tunnel ponds to aid in determining whether the ponds should be modeled as sources of contaminant migration. Data concerning the locations of the ponds, the volume of effluent discharged, and the concentration of tritium and other radionuclides in the water have been compiled from published and unpublished sources and included also.

  11. Social Security Funds Clamor for Reform

    Institute of Scientific and Technical Information of China (English)

    郑秉文

    2008-01-01

    This paper analyzed the institutional deficiencies inherent in China’s social security system based on a dissection of various social security fund violations. It holds that the unscientific design in social security system is the root cause for social security fund violations, which is reflected in low level of social security unification, irrational investment system and legislative loopholes etc. Currently, China’s social security funds are facing risks in management and in system; The key of risk control lies in the reforming of the overall framework of social security system through the following aspects: 1) readjust the unified account system structure to raise the level of unification; 2) reform funds investment system to boost ROI; 3) speeding up legislative to regulate the administrative costs and the behaviors of its entities.

  12. Social security systems in Tanzania: Phase I Overview of social ...

    African Journals Online (AJOL)

    The paper starts by examining the concept of social security in Tanzania, showing that there are three key issues in social security which have not been adequately addressed by existing social security schemes and need immediate attention. The paper then examines the nature and forms of social security in Tanzania in a ...

  13. Social Security, Intergenerational Transfers, and Endogenous Growth

    OpenAIRE

    Junsen Zhang; Junxi Zhang

    1998-01-01

    In this paper, the effects of social security in a simple model of endogenous growth with alternative motives of having children are analyzed. It shows how the effects of social security depend on the size of the social security tax, the motive to have children, and the pattern of intergenerational transfers. The pattern of intergenerational transfers itself, however, is shown to change with the social security tax rate. When the social security tax is not too high, social security increases ...

  14. Elements of social security

    DEFF Research Database (Denmark)

    Hansen, Hans

    Elements of Social Security is a comparative study of important elements of the social security systems in Denmark (DK), Sweden (S), Finland (FIN), Austria (A), Germany (D), the Netherlands (NL), Great Britain (GB) and Canada (CAN). It should be emphasized that Germany is the former West Germany...... (Alte Länder). This is the 9th and last edition of the publication,covering income levels and rules for social security and personal taxation for 1999. Basis for the projections to 1999 income levels is the 1998 data (in some cases 1999 data)for OECD's Taxing Wages as reported by national experts....

  15. INTEGRATION OF SOCIAL TECHNOLOGIES MICRO DAMS AND MULTIPLE-USE PONDS

    Directory of Open Access Journals (Sweden)

    Luciano Cordoval de Barros

    2011-07-01

    Full Text Available The integration of Social Technologies Micro Dams and Multiple-Use Ponds has guaranteed to farmers their water sustainability, allowing the creation of fish farms and the irrigation of gardens. In Araçaí, Minas Gerais State, in the community Pai José Farms, in a dry soil under Cerrado vegetation, predominantly yellow and red, porous, deep latosoils was built 96 micro dams in 2008 and 90 in 2009 to collect surface runoff water from rainfall, after meetings with the community. Since the water is contained, were also reduced the erosion and the silting. The micro dams are loaded and unloaded eight to 12 times a year, infiltrating water and raising the groundwater, moistening the soil around them and on lowlands, mitigating droughts and revitalizing streams. Increase in the level of tanks from four to 10 or 11 meters of water was observed, resulting in farmers' feeling of abundance. This enabled the construction of ponds sealed with common plastic tarpaulins for water storage during the dry season by pumping water from the tanks, which enabled fish farming and also irrigation of gardens. As a complement, in the rainy season, the ponds are also supplied with water collected from roofs. The experiment has been replicated successfully in two more neighboring towns and may be applied in states of central Brazil, where similar soils and conditions prevail.

  16. Statistical security for Social Security.

    Science.gov (United States)

    Soneji, Samir; King, Gary

    2012-08-01

    The financial viability of Social Security, the single largest U.S. government program, depends on accurate forecasts of the solvency of its intergenerational trust fund. We begin by detailing information necessary for replicating the Social Security Administration's (SSA's) forecasting procedures, which until now has been unavailable in the public domain. We then offer a way to improve the quality of these procedures via age- and sex-specific mortality forecasts. The most recent SSA mortality forecasts were based on the best available technology at the time, which was a combination of linear extrapolation and qualitative judgments. Unfortunately, linear extrapolation excludes known risk factors and is inconsistent with long-standing demographic patterns, such as the smoothness of age profiles. Modern statistical methods typically outperform even the best qualitative judgments in these contexts. We show how to use such methods, enabling researchers to forecast using far more information, such as the known risk factors of smoking and obesity and known demographic patterns. Including this extra information makes a substantial difference. For example, by improving only mortality forecasting methods, we predict three fewer years of net surplus, $730 billion less in Social Security Trust Funds, and program costs that are 0.66% greater for projected taxable payroll by 2031 compared with SSA projections. More important than specific numerical estimates are the advantages of transparency, replicability, reduction of uncertainty, and what may be the resulting lower vulnerability to the politicization of program forecasts. In addition, by offering with this article software and detailed replication information, we hope to marshal the efforts of the research community to include ever more informative inputs and to continue to reduce uncertainties in Social Security forecasts.

  17. Women and social security

    NARCIS (Netherlands)

    Westerveld, M.; Pennings, F.; Vonk, G.

    2015-01-01

    Does ‘the’ social security take sufficient account of women? Are its protection schemes sufficiently aimed at safeguarding women’s interests? These are the questions I was invited to answer for this handbook on social security law. At the same time I was asked to adopt an unorthodox approach, one

  18. Securing social media in the enterprise

    CERN Document Server

    Dalziel, Henry

    2015-01-01

    Securing Social Media in the Enterprise is a concise overview of the security threats posed by the use of social media sites and apps in enterprise network environments. Social media sites and apps are now a ubiquitous presence within enterprise systems and networks, and are vulnerable to a wide range of digital systems attacks. This brief volume provides security professionals and network systems administrators a much-needed dive into the most current threats, detection techniques, and defenses for these attacks, and provides a roadmap for best practices to secure and manage social media wi

  19. Marital Biography, Social Security Receipt, and Poverty.

    Science.gov (United States)

    Lin, I-Fen; Brown, Susan L; Hammersmith, Anna M

    2017-01-01

    Increasingly, older adults are unmarried, which could mean a larger share is at risk of economic disadvantage. Using data from the 2010 Health and Retirement Study, we chart the diverse range of marital biographies, capturing marital sequences and timing, of adults who are age eligible for Social Security and examine three indicators of economic well-being: Social Security receipt, Social Security benefit levels, and poverty status. Partnereds are disproportionately likely to receive Social Security and they enjoy relatively high Social Security benefits and very low poverty levels. Among singles, economic well-being varies by marital biography and gender. Gray divorced and never-married women face considerable economic insecurity. Their Social Security benefits are relatively low, and their poverty rates are quite high (over 25%), indicating Social Security alone is not sufficient to prevent these women from falling into poverty. By comparison, gray widoweds are the most advantaged singles.

  20. Accelerate China’s Social Security Legislation

    Institute of Scientific and Technical Information of China (English)

    王延中

    2008-01-01

    Since the financial crisis in Asia in 1997, China’s social security system has undergone continual reform and readjustment, and has proved to be an integral part of government efforts to perfect the socialist market economy as well as in building a socialist harmonious society. Although social security construction has achieved certain results, it has also left a lot of problems. With the rapid growth of China’s economy and revenue, people from all walks of life are putting ever-increasing demands on the social security system; therefore, the construction of a sound social security system suited to China’s current situation still remains an arduous task. In this article, the author have reviewed the 10 years development of China’s social security system, analyzed problems and challenges and proposed its suggestions.

  1. 20 CFR 638.528 - Social Security.

    Science.gov (United States)

    2010-04-01

    ... 20 Employees' Benefits 3 2010-04-01 2010-04-01 false Social Security. 638.528 Section 638.528... TITLE IV-B OF THE JOB TRAINING PARTNERSHIP ACT Center Operations § 638.528 Social Security. The Act provides that students are covered by title II of the Social Security Act (42 U.S.C. 401 et seq.) and shall...

  2. Social Security and Fighting Poverty in Tunisia

    Directory of Open Access Journals (Sweden)

    Hasna Khemili

    2018-02-01

    Full Text Available The objective of this study was to examine the role of social security in fighting poverty in Metlaoui, Tunisia, using survey data collected between July 2012 and January 2014, covering 200 poor households. We used questionnaire data, which gave a thorough analysis of the reactions, behavior, and strategies adopted by poor households as a result of various forms of risk. Social security has an effect on a number of different areas, including health, education, housing, and income. Our methodology explored both complete and partial risk-sharing, to investigate the impact of social security schemes on the strategies adopted by households to cope with economic shocks. The estimation results of different models showed that social security could help social security-covered households choose less costly strategies to cope with risks. However, the role of social security remains insufficient, given that covered households had less confidence in its services and they adopted strategies of self-insurance or income smoothing. Overall, the results showed that social security plays an important role in Metlaoui, but it remains insufficient, especially for households that are not covered by social security and are suffering from heavy health expenditures.

  3. 34 CFR 668.36 - Social security number.

    Science.gov (United States)

    2010-07-01

    ... 34 Education 3 2010-07-01 2010-07-01 false Social security number. 668.36 Section 668.36 Education... Islands, and the Republic of Palau, the Secretary attempts to confirm the social security number a student... Security Administration. If the Social Security Administration confirms that number, the Secretary notifies...

  4. Social Influence for Security

    Directory of Open Access Journals (Sweden)

    Florin Iftode

    2014-08-01

    Full Text Available The main aim of this work marks the reveling of scientific premises intended to structure the issue of social influence for security. The approach has as aim the identification of those elements that define and characterize the social influence in order to manage conflict, from the perspective of public communication. The proposed approach establishes some synthetic, clear boundaries through the method of research and analysis of the concept of security, social influence, revealing the specifics of public communication in conflict management.

  5. Social security financing.

    Science.gov (United States)

    1980-05-01

    After nearly 2 years of study, the 1979 Advisory Council on Social Security submitted its findings and recommendations in December. In February the Bulletin published the Executive Summary of the Council's report. Because of the continuing wide public interest in the future of social security financing, the Council's detailed findings and recommendations on that subject are published below. The Council unanimously reports that all current and future beneficiaries can count on receiving the payments to which they are entitled. Among the recommendations it calls for are partial financing with nonpayroll-tax revenues. Suggested changes include hospital insurance (HI) financed through portins of personal and corporate income taxes and a part of the HI insurance payroll tax diverted to cash benefits with the balance of this tax repealed. The Council also recommends that the social security cash benefits program be brought into long-run actuarial balance--with a payroll-tax rate increase in the year 2005. It rejects the idea of a value-added tax as being inflationary. Parenthetical remarks represent additional views of the Council members cited.

  6. 76 FR 68243 - Social Security Rulings, SSR 91-1c and SSR 66-18c; Rescission of Social Security Rulings (SSR) 66...

    Science.gov (United States)

    2011-11-03

    ..., Social Security Online, at http://www.socialsecurity.gov . SUPPLEMENTARY INFORMATION: SSRs make available... SOCIAL SECURITY ADMINISTRATION [Docket No. SSA-2011-0068] Social Security Rulings, SSR 91-1c and SSR 66-18c; Rescission of Social Security Rulings (SSR) 66-18c and SSR 91-1c AGENCY: Social Security...

  7. Social security and firm performance

    DEFF Research Database (Denmark)

    Lee, Sangheon; Torm, Nina

    2017-01-01

    This article investigates how social security provision - a key determinant of formality - impacts on small and medium-sized firm performance in Viet Nam. Based on enterprise census data covering all registered firms from 2006 to 2011, the authors find that firms which increase their social...... security coverage by 10 per cent experience a revenue gain of 1.4-2.0 per cent per worker and a profit gain of up to 1.8 per cent, depending on the survival time of the firm. However, given the time lag between 'investment' (in social security contributions) and returns (enhanced firm performance...

  8. Social Security at the Crossroads.

    Science.gov (United States)

    International Labour Review, 1980

    1980-01-01

    Social security schemes need to be streamlined and the underlying policies made more coherent to obtain the fullest possible return on expenditure. Third World countries need to reflect very seriously on the role of social security in the development process and on the management problems involved. (CT)

  9. Proposals to Restructure Social Security

    OpenAIRE

    Peter A. Diamond

    1996-01-01

    This paper discusses five proposed changes in Social Security: indexing the normal retirement age to life expectancy (as Sweden is doing); investing part of the trust funds in private securities; partial privatization (as has been proposed by Senators Kerrey and Simpson, Sweden is doing and Mexico has done); replacing Social Security by individually mandated savings (as was done in Chile in 1981); and mandating employer provided retirement savings (as recently legislated in Australia and is e...

  10. 4 CFR 83.9 - Social Security number.

    Science.gov (United States)

    2010-01-01

    ... 4 Accounts 1 2010-01-01 2010-01-01 false Social Security number. 83.9 Section 83.9 Accounts GOVERNMENT ACCOUNTABILITY OFFICE RECORDS PRIVACY PROCEDURES FOR PERSONNEL RECORDS § 83.9 Social Security number. (a) GAO may not require individuals to disclose their Social Security Number (SSN) unless...

  11. 49 CFR 10.29 - Social Security numbers.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 1 2010-10-01 2010-10-01 false Social Security numbers. 10.29 Section 10.29... INDIVIDUALS Maintenance of Records § 10.29 Social Security numbers. (a) No individual is denied any right... which is required by Federal statute; or (2) The disclosure of a Social Security number when such...

  12. 14 CFR 1212.604 - Social security numbers.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 5 2010-01-01 2010-01-01 false Social security numbers. 1212.604 Section... REGULATIONS Instructions for NASA Employees § 1212.604 Social security numbers. (a) It is unlawful for NASA to...' refusal to disclose their social security numbers, except where: (1) The disclosure is required by law; or...

  13. [Social Security Needs Social Medicine: Self-image of Physicians Practicing Social Medicine in Statutory Health Insurances and Social Security Systems].

    Science.gov (United States)

    Nüchtern, E; Bahemann, A; Egdmann, W; van Essen, J; Gostomzyk, J; Hemmrich, K; Manegold, B; Müller, B; Robra, B P; Röder, M; Schmidt, L; Zobel, A; von Mittelstaedt, G

    2015-09-01

    In January, 2014, the division "Social Medicine in Practice and Rehabilitation" of the German Society for Social Medicine and Prevention established a working group on the self-image of the physicians active in the field of social medicine (medical expertise and counseling). The result of this work is the contribution presented here after consensus was achieved by specialists of social medicine from different fields and institutions (social security etc.) and in good cooperation with Prof. Dr. Gostomzyk and Prof. Dr. Robra. Based on the importance of an up to date social medicine for claimants and recipients of benefits on the one hand and the social security system on the other, and also on a description of the subjects, objectives and methods the following aspects are presented: · The perspective of social medicine. · Qualification in social medicine, concerning specialist training and continuing medical education. · The fields of duty of experts in social medicine. · The proceedings in social medicine. The working group identified challenges for the specialists in social medicine by a narrowed perception of social medicine by physicians in hospitals and practice, accompanied by an enlarged importance of expertise in social medicine, by the demand for more "patient orientation" and gain of transparency, and concerning the scientific foundation of social medicine. The working group postulates: · The perspective of social medicine should be spread more widely.. · Confidence in experts of social medicine and their independency should be strengthened.. · The not case-related consulting of the staff and executives should be expanded.. · Social medicine in practice needs support by politics and society, and especially by research and teaching.. · Good cooperation and transfer of experiences of the different branches of social security are essential for the impact of social medicine.. © Georg Thieme Verlag KG Stuttgart · New York.

  14. Social Security in Zimbabwe : Phase I Overview of social security in ...

    African Journals Online (AJOL)

    Most people are covered by non-formal arrangements and the family and community still play a critical role in social protection even though poverty has impacted negatively on their ability to do this effectively. Churches are another source of social security. Semi-formal arrangements include burial societies, savings and ...

  15. Marital Biography, Social Security Receipt, and Poverty

    OpenAIRE

    Lin, I-Fen; Brown, Susan L.; Hammersmith, Anna M.

    2017-01-01

    Increasingly, older adults are unmarried, which could mean a larger share is at risk of economic disadvantage. Using data from the 2010 Health and Retirement Study, we chart the diverse range of marital biographies, capturing marital sequences and timing, of adults who are age eligible for Social Security and examine three indicators of economic well-being: Social Security receipt, Social Security benefit levels, and poverty status. Partnereds are disproportionately likely to receive Social S...

  16. ADMINISTRATIVE EXPENDITURES OF SOCIAL SECURITY FUNDS IN UKRAINE

    Directory of Open Access Journals (Sweden)

    Nataliia Ivanchuk

    2017-12-01

    Full Text Available Along with the expenditures for social protection, social security funds finance administrative direction, which should correspond to the amount of functions performed by a particular fund. The purpose of the paper is to determine ways to reduce administrative expenditures of state social security funds in the conditions of reforming Ukrainian economy. For this purpose, the authors investigate distribution of the expenditures between social security funds, analyse dynamics and structure of assignments for fund administration, and suggest possible ways to rationalize maintenance cost for these institutions. Methodology. Administrative expenditures are an integral part of the cost of social security funds and include particular items of expenses in the budget of these institutions. Applying a systematic approach to calculating the administrative costs of social security funds of Ukraine the authors have taken into account the expenditures related to funding management, support for information systems, and organization of work with insured people. Results of the survey showed that in 2007–2016 Pension Fund of Ukraine incurred the largest part of social expenditures (more than 90% compared with other social insurance funds (less than 10%. At the same time, the administrative expenses were divided approximately into two halves between Pension Fund and other social security funds. In 2015, the government launched a reform of social insurance funds that aimed to reduce funds to three institutions but a decrease in the total amount of administrative expenditures has not been achieved yet. In addition, Pension Fund of Ukraine was least burdened with administrative expenses, while other social security funds with a relatively small share of social expenditures were burdened with administrative expenditures much more. Practical implications. Research showed that nowadays the existence of several social security funds in Ukraine is economically

  17. Social Security and Part-Time Employment.

    Science.gov (United States)

    Euzeby, Alain

    1988-01-01

    Discusses rules governing social security and their implications for part-time employees in various countries. Topics include (1) methods of financing social security, (2) benefits, (3) measures concerning the unemployed, (4) a floor for employers' contributions, (5) graduated contribution rates, and (6) financial incentives. (CH)

  18. SOCIAL SECURITY IN MODERN ERA

    African Journals Online (AJOL)

    2018-03-28

    Mar 28, 2018 ... Lecturer, Department of Social Work, Bindura University of Science Education; Email. ... Lecturer, School of Social Work, University of Zimbabwe, Mount ... There are two types of informal social security: traditional or family ...

  19. [Universalization of health or of social security?].

    Science.gov (United States)

    Levy-Algazi, Santiago

    2011-01-01

    This article presents an analysis of the architecture of Mexico's health system based on the main economic problem, failing to achieve a GDP growth rate to increase real wages and give workers in formal employment coverage social security. This analysis describes the relationship between social security of the population and employment status of it (either formal or informal employment) and the impact that this situation poses to our health system. Also, it ends with a reform proposal that will give all workers the same social rights, ie to grant universal social security.

  20. 20 CFR 209.3 - Social security number required.

    Science.gov (United States)

    2010-04-01

    ... 20 Employees' Benefits 1 2010-04-01 2010-04-01 false Social security number required. 209.3... RAILROAD EMPLOYERS' REPORTS AND RESPONSIBILITIES § 209.3 Social security number required. Each employer shall furnish to the Board a social security number for each employee for whom any report is submitted...

  1. 7 CFR 273.6 - Social security numbers.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 4 2010-01-01 2010-01-01 false Social security numbers. 273.6 Section 273.6... normally uses the Receipt of Application for a Social Security Number, Form SSA-5028, as evidence that an... security numbers. (a) Requirements for participation. The State agency shall require that a household...

  2. Online, Batch and CICS Social Security Statement

    Data.gov (United States)

    Social Security Administration — A database that contains client preference information for the SSA initiated Social Security Statement as well as other data including SSN, disposition for paper SS...

  3. 26 CFR 301.7701-11 - Social security number.

    Science.gov (United States)

    2010-04-01

    ... 26 Internal Revenue 18 2010-04-01 2010-04-01 false Social security number. 301.7701-11 Section 301... ADMINISTRATION PROCEDURE AND ADMINISTRATION Definitions § 301.7701-11 Social security number. For purposes of this chapter, the term social security number means the taxpayer identifying number of an individual or...

  4. A New Paradigm for Secure Social Lending

    Science.gov (United States)

    Serrelis, Emmanouil; Alexandris, Nikolaos

    Social Lending is one of the latest trends in Social Networking, offering a communication and financial channel between individual borrowers and lenders. The various Social Lending transaction schemes could be subject to multiple security threats, in both financial and technical terms, which could affect the integrity of the service as well as the trust of citizens. This paper provides an overview of the basic characteristics of Social Lending as well as an analysis the potential security issues suggesting some appropriate corrective measures. The ultimate target is to enforce the Social Lending effort with an information security foundation that could become an appreciable alternative to the "traditional" lending system.

  5. The story of the social security number.

    Science.gov (United States)

    Puckett, Carolyn

    2009-01-01

    The use of the Social Security number (SSN) has expanded significantly since its inception in 1936. Created merely to keep track of the earnings history of U.S. workers for Social Security entitlement and benefit computation purposes, it has come to be used as a nearly universal identifier. Assigned at birth, the SSN enables government agencies to identify individuals in their records and businesses to track an individual's financial information. This article explores the history and meaning of the SSN and the Social Security card, as well as the Social Security Administration's (SSA's) SSN master file, generally known as the Numident. The article also traces the historical expansion of SSN use and the steps SSA has taken to enhance SSN integrity.

  6. Evaluation of social attraction measures to establish Forster’s tern (Sterna forsteri) nesting colonies for the South Bay Salt Pond Restoration Project, San Francisco Bay, California—2017 Annual Report

    Science.gov (United States)

    Hartman, C. Alex; Ackerman, Joshua T.; Herzog, Mark P.; Wang, Yiwei; Strong, Cheryl

    2018-05-31

    Forster’s terns (Sterna forsteri), historically one of the most numerous colonial-breeding waterbirds in South San Francisco Bay, California, have had recent decreases in the number of nesting colonies and overall breeding population size. The South Bay Salt Pond (SBSP) Restoration Project aims to restore 50–90 percent of former salt evaporation ponds to tidal marsh habitat in South San Francisco Bay. This restoration will remove much of the historical island nesting habitat used by Forster’s terns, American avocets (Recurvirostra americana), and other waterbirds. To address this issue, the SBSP Restoration Project organized the construction of new nesting islands in managed ponds that will not be restored to tidal marsh, thereby providing enduring island nesting habitat for waterbirds. In 2012, 16 new islands were constructed in Pond A16 in the Alviso complex of the Don Edwards San Francisco Bay National Wildlife Refuge, increasing the number of islands in this pond from 4 to 20. However, despite a history of nesting on the four historical islands in Pond A16 before 2012, no Forster’s terns have nested in Pond A16 since the new islands were constructed.In 2017, we used social attraction measures (decoys and electronic call systems) to attract Forster’s terns to islands within Pond A16 to re-establish nesting colonies. We maintained these systems from March through August 2017. To evaluate the effect of these social attraction measures, we also completed waterbird surveys between April and August, where we recorded the number and location of all Forster’s terns and other waterbirds using Pond A16, and monitored waterbird nests. We compared bird survey and nest monitoring data collected in 2017 to data collected in 2015 and 2016, prior to the implementation of social attraction measures, allowing for direct evaluation of social attraction efforts on Forster’s terns.To increase the visibility and stakeholder involvement of this project, we engaged in

  7. Social Security and the Equity Premium Puzzle

    OpenAIRE

    Olovsson, Conny

    2004-01-01

    This paper shows that social security may be an important factor in explaining the equity premium puzzle. In the absence of shortselling constraints, the young shortsell bonds to the middle-aged and buy equity. Social security reduces the bond demand of the middle-aged, thereby restricting the possibilities of the young to finance their equity purchases. Their equity demand increases as does the average return to equity. Social security also increases the covariance between future consumption...

  8. Social Security Administration Data for Enumeration Accuracy

    Data.gov (United States)

    Social Security Administration — This dataset provides data at the national level from federal fiscal year 2006 onwards for the accuracy of the assignment of Social Security numbers (SSN) based on...

  9. African Social Security Systems: An Ordinal Evaluation | Dixon ...

    African Journals Online (AJOL)

    The purpose of this paper is to rank the social security systems in 45 African countries using a comparative evaluation methodology that enables an assess ment to be ma(le of a country's statutory social security intention. The conclusion drawn is that the spread of African social security system design standards are ...

  10. Social security income and the utilization of home care: Evidence from the social security notch.

    Science.gov (United States)

    Tsai, Yuping

    2015-09-01

    This paper exploits Social Security law changes to identify the effect of Social Security income on the use of formal and informal home care by the elderly. Results from an instrumental variables estimation strategy show that as retirement income increases, elderly individuals increase their use of formal home care and become less likely to rely on informal home care provided to them by their children. This negative effect on informal home care is most likely driven by male children withdrawing from their caregiving roles. The empirical results also suggest that higher Social Security benefits would encourage the use of formal home care by those who would not have otherwise used any type of home care and would also encourage the use of both types of home care services among elderly individuals. Published by Elsevier B.V.

  11. Banner prints social security numbers

    OpenAIRE

    Robbins RA

    2014-01-01

    No abstract available. Article truncated at 150 words. The Monday edition of the Arizona Republic contained a story with potential interest to our readers. On the most recent address labels of Banner Health's magazine, Smart & Healthy, the addressee's Social Security or Medicare identification numbers, which are often identical to their Social Security numbers (1). The magazine was mailed to more than 50,000 recipients in Arizona late last week. The recipients are members of the Medicare Pion...

  12. 20 CFR 422.103 - Social security numbers.

    Science.gov (United States)

    2010-04-01

    ... personal interview with the dependent is not required. Form SS-5 may be obtained at: (i) Any local social... previously assigned social security number(s), if any, of the applicant. A personal interview may be required... sponsoring agency of a refugee, if no personal mailing address is available). (d) Social security number...

  13. Social Networks and Corporate Information Security

    Directory of Open Access Journals (Sweden)

    Ekaterina Gennadievna Kondratova

    2013-06-01

    Full Text Available It is defined in the article social networks as a tool in the hands of cyber-criminals to compromise the organization’s data. The author focuses on a list of threats to information security caused by social networks usage, which should be considered in the set up of information security management system of the company.

  14. Women and social security: a progressive approach.

    Science.gov (United States)

    Olson, L K

    1994-01-01

    This article explores some major assumptions underlying the Social Security system and alternative approaches to rendering the system more economically viable, meeting the income needs of the elderly and/or providing greater equity under its benefit and taxation provisions. It attempts to show that the current structure of Social Security not only reinforces but also exacerbates the underlying economic inequalities in our nation's political economy under the guise of a social insurance program. In addressing selected benefit and taxation issues, the article focuses on how working and older women are faring in the 1990s under the Social Security system. It argues that although the program theoretically is gender neutral, its impact is not. Women, particularly those who are single, are poorly served. The article concludes that a progressive restructuring of the Social Security system itself is imperative if we are to meet the needs of a large percentage of workers, older people, and the economic and social demands of the 1990s and beyond. It also offers some suggestions for such change.

  15. 76 FR 65558 - Rescission of Social Security Ruling 97-2p

    Science.gov (United States)

    2011-10-21

    ...-800-325-0778, or visit our Internet site, Social Security Online, at http://www.socialsecurity.gov... SOCIAL SECURITY ADMINISTRATION [Docket No. SSA 2007-0092] Rescission of Social Security Ruling 97-2p AGENCY: Social Security Administration. ACTION: Notice of rescission of Social Security Ruling...

  16. Will Pre-Funding Provide Security for Social Security? A Review of the Literature

    OpenAIRE

    Robert L. Brown

    2000-01-01

    President Clinton has proposed creating larger social security funds and investing a portion of them in the private sector. Others have suggested more radical reforms such as moving social security from a defined-benefit scheme to a defined contribution plan based on the Chilean model. These proposals are based on the goal of creating higher investment returns, which would make social security benefits easier to finance in the long run. After an extensive review of the literature, this paper ...

  17. 32 CFR 806b.12 - Requesting the Social Security Number.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 6 2010-07-01 2010-07-01 false Requesting the Social Security Number. 806b.12... Number. When asking an individual for his or her Social Security Number, always give a Privacy Act... Social Security Number; and whether providing the Social Security Number is voluntary or mandatory. Do...

  18. A Life-Cycle Analysis of Social Security with Housing

    OpenAIRE

    Chen, Kaiji

    2009-01-01

    This paper incorporates two features of housing in a life-cycle analysis of social security: housing as a durable good and housing market frictions. We find that with housing as a durable good unfunded social security substantially crowds out housing consumption throughout the life cycle. By contrast, aggregate non-durable consumption is higher when social security is present, although it is postponed until late in life. Moreover, in the presence of housing market frictions, social security l...

  19. Reforming the South African Social Security Adjudication System: Innovative Experiences from South African Non-Social Security Jurisdictions

    Directory of Open Access Journals (Sweden)

    Mathias Ashu Tako Nyenti

    2016-08-01

    Full Text Available There is currently no uniform social security dispute resolution system in South Africa due to the piecemeal fashion in which schemes were established or protection against individual risks regulated. The result is that each statute provides for its own dispute resolution institution(s and processes. There are also various gaps and challenges in the current social security dispute resolution systems, some of these relating to the uncoordinated and fragmented nature of the system; inaccessibility of some social security institutions; inappropriateness of some current appeal institutions; the lack of a systematic approach in establishing appeal institutions; a limited scope of jurisdiction and powers of adjudication institutions; inconsistencies in review and/or appeal provisions in various laws; an unavailability of alternative dispute resolution procedures; and an absence of institutional independence of adjudication institutions or forums. The system is therefore in need of reform. In developing an appropriate system, much can be learned from innovative experiences in comparative South African non-social security jurisdictions on the establishment of effective and efficient dispute resolution frameworks. Dispute resolution systems in the labour relations, business competition regulation and consumer protection jurisdictions have been established to realise the constitutional rights of their users (especially the rights of access to justice, to a fair trial and to just administrative action. They thus provide a benchmark for the development of the South African social security dispute resolution system.

  20. Who's (Still) Above the Social Security Payroll Tax Cap?

    OpenAIRE

    Nicole Woo; Janelle Jones; John Schmitt

    2012-01-01

    The Social Security payroll tax cap is the earnings level above which no further Social Security taxes are collected. The cap is currently at $110,100, though legislation has been introduced in Congress to apply the Social Security payroll tax to earnings above $250,000 (but not between the current cap and this level). This issue brief updates earlier work, finding that 5.8 percent of workers would be affected if the Social Security cap were eliminated entirely and 1.4 percent would be affect...

  1. Saving and Social Security Wealth: A Case of Turkey

    OpenAIRE

    H. Yigit Aydede

    2007-01-01

    This paper is the first attempt in the literature to investigate the effects of public social security on aggregate consumption in a time-series setting for a developing country, Turkey that has one of the most generous social security systems in the OECD region. In order to quantify the social security variable, the paper uses the social security wealth (SSW) series calculated for the first time for Turkey and shows that SSW is the largest part of the household wealth in Turkey and therefore...

  2. 42 CFR 435.910 - Use of social security number.

    Science.gov (United States)

    2010-10-01

    ... 42 Public Health 4 2010-10-01 2010-10-01 false Use of social security number. 435.910 Section 435... of social security number. (a) The agency must require, as a condition of eligibility, that each... religious objections, refuses to obtain a Social Security Number (SSN). The identification number may be...

  3. 45 CFR 205.52 - Furnishing of social security numbers.

    Science.gov (United States)

    2010-10-01

    ... 45 Public Welfare 2 2010-10-01 2010-10-01 false Furnishing of social security numbers. 205.52... GENERAL ADMINISTRATION-PUBLIC ASSISTANCE PROGRAMS § 205.52 Furnishing of social security numbers. The... furnish to the State or local agency a social security account number, hereinafter referred to as the SSN...

  4. Social Comparison and Big-Fish-Little-Pond Effects on Self-Concept and Other Self-Belief Constructs: Role of Generalized and Specific Others

    Science.gov (United States)

    Marsh, Herbert W.; Trautwein, Ulrich; Ludtke, Oliver; Koller, Olaf

    2008-01-01

    Two studies integrate the big-fish-little-pond effect (BFLPE; negative effects of class-average achievement on academic self-concept, ASC), which is based upon educational psychological research, with related social psychological research that is based on social comparison theory. Critical distinctions are the nature of the social comparison…

  5. Austerity, Discipline and Social Security

    Directory of Open Access Journals (Sweden)

    Asja Hrvatin

    2013-03-01

    Full Text Available One of the manifestations of the global crisis of financial capitalism and the policies arising from it was the imposition of austerity measures, which not only resulted in privatization of the commons and general expropriation of the people, but also managed to introduce new mechanisms of discipline and punishment. Debt, being the fundament of relations in society, forced itself into the system of social security: new legislation, regulating welfare benefits, has now shifted to a method for the criminalization of poverty, deepening class differences and transforming social workers (and the system of social security as a whole into a moralizing, bureaucratic machine for disciplining the population. The new legislation also shows a lack of reflection on the changes that need to be made to the welfare state in order to create social services that meet the needs and desires of individuals. Instead of improvements that provide decent living conditions and a new system of social rights (to deal with the problems resulting from precarious working conditions, people are faced with depersonalization, humiliation and increased hate speech and other fascist practices. The effect of austerity measures on the social security system does not end with the devastation of service users’ lives and their communities, which are slowly becoming exhausted, individualized and devoid of solidarity. It also means a big step backwards for the core ethics and principles of social work. Social workers are increasingly alienated from their clients and the communities they live in. They function more in the service of the government and its policies rather than as advocates of people’s rights.

  6. Social security in developing countries : some theoretical considerations

    NARCIS (Netherlands)

    Leliveld, A.H.M.

    1991-01-01

    This paper discusses the concept of social security and criticizes the ILO definition of the concept as too limited to analyse non-Western social security systems. It develops an alternative definition which includes, firstly, the protection by society of individuals or social groups against a fall

  7. Social Security Programs Throughout the World: Africa, 2015

    Data.gov (United States)

    Social Security Administration — This report, which is part of a four-volume series, provides a cross-national comparison of the social security systems in 48 countries in Africa. It summarizes the...

  8. Social Security and the Evolution of Elderly Poverty

    OpenAIRE

    Gary V. Engelhardt; Jonathan Gruber

    2004-01-01

    We use data from the March 1968-2001 Current Population Surveys to document the evolution of elderly poverty over this time period, and to assess the causal role of the Social Security program in reducing poverty rates. We develop an instrumental variable approach that relies on the large increase in benefits for birth cohorts from 1885 through 1916, and the subsequent decline and flattening of real benefits growth due to the Social Securing 'notch', to estimate of Social Security on elderly ...

  9. 28 CFR 16.53 - Use and collection of social security numbers.

    Science.gov (United States)

    2010-07-01

    ... 1974 § 16.53 Use and collection of social security numbers. Each component shall ensure that employees... privilege as a result of refusing to provide their social security numbers, unless the collection is... provide their social security numbers must be informed of: (1) Whether providing social security numbers...

  10. Reforming the South African social security adjudication system: innovative experiences from South African non-social security jurisdictions

    OpenAIRE

    Nyenti, MAT

    2016-01-01

    There is currently no uniform social security dispute resolution system in South Africa due to the piecemeal fashion in which schemes were established or protection against individual risks regulated. The result is that each statute provides for its own dispute resolution institution(s) and processes. There are also various gaps and challenges in the current social security dispute resolution systems, some of these relating to the uncoordinated and fragmented nature of the system; inaccessibi...

  11. Smoking: Taxing health and social security

    OpenAIRE

    Armour, Brian S.; Pitts, M. Melinda

    2006-01-01

    Cigarette smoking is costly in terms of not only its effects on smokers' health but also the direct and indirect financial costs it imposes on smokers and their families. For instance, premature death caused by smoking may redistribute Social Security income in unexpected ways that affect behavior and reduce the economic well-being of smokers and their dependents. ; This article examines the effects of smoking-attributable mortality on the net marginal Social Security tax rate (NMSSTR)—the di...

  12. Changing principles in European social security

    NARCIS (Netherlands)

    van Oorschot, W.J.H.; Clasen, J.J.

    2002-01-01

    The provision of social security benefits rests on normative principles of social justice. Most strongly manifest in earnings-related social insurance, the principle of reciprocity has been increasingly questioned on grounds of equity, adequacy and fiscal viability, in the wake of socio-economic

  13. 12 CFR 792.68 - Use and collection of Social Security numbers.

    Science.gov (United States)

    2010-01-01

    ... 12 Banks and Banking 6 2010-01-01 2010-01-01 false Use and collection of Social Security numbers... Act § 792.68 Use and collection of Social Security numbers. The head of each NCUA Office shall take... furnish Social Security numbers, and that individuals who are requested to provide Social Security numbers...

  14. Review of Social Networking Sites' Security and Privacy

    OpenAIRE

    YANG, SHUN

    2015-01-01

    Nowadays social media networking has dramatically increased. Social networking sites like Facebook make users create huge amount of profiles and share personal information within networking of different users. Social networking exposes personal information far beyond the group of friends. And that information or data on social media networking could be potential threat to people's information security and privacy. In this review, we are going to view the privacy risks and security problem...

  15. 38 CFR 3.216 - Mandatory disclosure of social security numbers.

    Science.gov (United States)

    2010-07-01

    ... social security numbers. 3.216 Section 3.216 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF... Requirements § 3.216 Mandatory disclosure of social security numbers. Any person who applies for or receives..., furnish the Department of Veterans Affairs upon request with his or her social security number and the...

  16. Social Security's Surpluses: An Update.

    Science.gov (United States)

    Dattalo, Patrick

    1992-01-01

    Notes that deliberation over how to manage social security's large trust fund balances is expected to continue. Urges social workers to participate in this debate because surpluses have implications for increasing quality of life of low- and moderate-income families. Continues earlier discussion (Dattalo, 1990) by assessing two recent proposals…

  17. 77 FR 67724 - Rescission of Social Security Acquiescence Ruling 05-1(9)

    Science.gov (United States)

    2012-11-13

    ...-1213 or TTY 1-800-325-0778, or visit our Internet site, Social Security Online, at http://www... SOCIAL SECURITY ADMINISTRATION [Docket No. SSA-2012-0058] Rescission of Social Security Acquiescence Ruling 05-1(9) AGENCY: Social Security Administration. [[Page 67725

  18. Mining social networks and security informatics

    CERN Document Server

    Özyer, Tansel; Rokne, Jon; Khoury, Suheil

    2013-01-01

    Crime, terrorism and security are in the forefront of current societal concerns. This edited volume presents research based on social network techniques showing how data from crime and terror networks can be analyzed and how information can be extracted. The topics covered include crime data mining and visualization; organized crime detection; crime network visualization; computational criminology; aspects of terror network analyses and threat prediction including cyberterrorism and the related area of dark web; privacy issues in social networks; security informatics; graph algorithms for soci

  19. Vietnam: expanding the social security system.

    Science.gov (United States)

    Pruzin, D

    1996-01-01

    Viet Nam's shift toward a market-oriented economy has been associated with annual gross domestic product growth of more than 8% over the past 5 years. At the same time, the emergence of private-sector enterprises and subsequent closure of many state-run enterprises have had profound implications for Viet Nam's social protection systems. At present, only 5.6 million of the country's 33 million workers are covered under the state-run social insurance system. In 1995, the government moved to include private enterprises with 10 or more employees in its state benefits system. The International Labor Organization (ILO) has been working with the Vietnamese Government to design and implement a social security system that would extend coverage progressively to excluded sectors and provide support to workers who have become unemployed as a result of the economic transition process. At its Eighth National Congress, the Vietnamese Communist Party approved a 5-year social and economic plan calling for such an expansion of the social insurance system as well as for a guaranteed standard of living for pensioners. To facilitate anticipated changes, activities that were previously divided between the Ministry of Labor, Invalids, and Social Affairs and the Vietnam General Confederation of Labor have been assigned to the newly formed Vietnam Social Insurance (VSI) Organization. Under consideration is a plan to combine some VSI activities with those of the Vietnam Health Insurance Organization. The ILO will assist with training, computerization, and social security fund investing. Noncompliance is a major obstacle to planned expansion of the social security system; about 90% of private firms are still not paying into the system.

  20. 20 CFR 422.120 - Earnings reported without a social security number or with an incorrect employee name or social...

    Science.gov (United States)

    2010-04-01

    ... number or with an incorrect employee name or social security number. 422.120 Section 422.120 Employees... reported without a social security number or with an incorrect employee name or social security number. (a... social security number or with a different employee name or social security number than shown in SSA's...

  1. 10 CFR 1008.22 - Use and collection of social security numbers.

    Science.gov (United States)

    2010-01-01

    ... 10 Energy 4 2010-01-01 2010-01-01 false Use and collection of social security numbers. 1008.22... security numbers. (a) The System Manager of each system of records which utilizes social security numbers... individuals may not be required to furnish social security numbers without statutory authorization, and that...

  2. Social security administration in India- study of provident funds and pension scheme

    OpenAIRE

    Rao, Madhava P

    2005-01-01

    Social Security is becoming a distinct part of social policy of India and the time has come to give a serious thought to ever increasing Social Security needs of the population. There are diversified views on extension of Social Security coverage. Some say it should be limited to only working population and to their families and while others say that the entire population should be covered under Social Security programmes. Social Security schemes further have been branched out as protective...

  3. Theory, Demonstration and Methods: Research on Social Security of Migrant Workers by Domestic Scholar

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Social security of migrant workers has been significant in dissolving social contradictions and achieving the economic and social development in China during the transitional period. The researches of domestic scholar on social security of migrant workers can be classified into three categories. Firstly, theoretical analysis on social security of migrant workers, including researches on the appeal of social security and misunderstanding of recognition, theory-construction of rural worker social security, policy defects and equity construction in social security system of migrant workers. Secondly, real studies on social security of migrant workers, including researches on sequence of demand and influencing factors of social security of migrant workers as well as intrinsic motivation forming the perspective on social security. Lastly, road exploration of establishing social security system, including researches on the multi-level development of rural worker social security system, comparison of "Double-low method", "Guangdong Method" and "Shanghai Method" of the social security of migrant workers in Zhejiang Province and establishing multi-level social security system according to the hierarchy after the internal differentiation.

  4. 6 CFR 5.33 - Use and collection of social security numbers.

    Science.gov (United States)

    2010-01-01

    ... 6 Domestic Security 1 2010-01-01 2010-01-01 false Use and collection of social security numbers. 5... OF RECORDS AND INFORMATION Privacy Act § 5.33 Use and collection of social security numbers. Each... to 1975; and (b) That individuals requested to provide their social security numbers must be informed...

  5. Elements of Social Security

    DEFF Research Database (Denmark)

    Hansen, Hans

    Elements of Social Security contains an overview of important benefit schemes in Denmark, Sweden, Finland, Austria, Germany, the Netherlands, Great Britain and Canada. The schemes are categorized according to common sets of criteria and compared. Stylized cases illustrate the impact on disposable...

  6. Elements of Social Security

    DEFF Research Database (Denmark)

    Hansen, Hans

    Elements of Social Security contains an overview of important benefit schemes in Denmark, Sweden, Finland, Germany, the Netherlands, Great Britain and Canada. The schemes are categorized according to common sets of criteria and compared. Stylized cases illustrate the impact on disposable income...

  7. Elements of Social Security

    DEFF Research Database (Denmark)

    Hansen, Hans

    Elements of Social Security contains an overview of important benefit schemes in Denmark, Sweden, Finland, Germany, Great Britain, the Netherlands and Canada. The schemes are categorized according to common sets of criteria and compared. Stylized cases illustrate the impact on disposable income...

  8. Waste Stabilisation Ponds

    OpenAIRE

    Von Sperling, Marcos

    2007-01-01

    "Waste Stabilisation Ponds is the third volume in the series Biological Wastewater Treatment. The major variants of pond systems are fully covered, namely: facultative ponds anaerobic ponds aerated lagoons maturation ponds The book presents in a clear and informative way the main concepts, working principles, expected removal efficiencies, design criteria, design examples, construction aspects, operational guidelines and sludge managment for pond systems. About the series: The series is...

  9. Social Security: a financial appraisal for the median voter.

    Science.gov (United States)

    Galasso, V

    Several explanations have been proposed for why voters continue to support unfunded social security systems. Browning (1975) suggests that the extremely large unfunded pension systems of most democracies depend on the existence of a voting majority composed of middle-aged and older people who fail to fully internalize the cost of financing the system. In fact, when voting, economically rational workers consider only their current and future contributions to the system and their expected pension benefits--not their past contributions, which they regard as sunk costs. If, for a majority of voters, the expected continuation return from social security exceeds the return from alternative assets, an unfunded social security system is politically sustainable. This article explores the validity of Browning's proposition by quantifying the returns that U.S. voters in presidential elections from 1964 to 1996 have obtained, or expect to obtain, from Social Security. Did "investments" in Social Security outperform alternative forms of investment, such as mutual funds or pension funds, for a majority of the voters? What can be expected for the future? The U.S. Social Security system redistributes income within age cohorts on the basis of sex, income, and marital status. To account for some of these features, the median voter is represented by a family unit whose members--a husband who accounts for 70 percent of household earnings and a wife who accounts for 30 percent--make joint economic and voting decisions. Thus, retirement and survival benefits paid out to the spouse of an insured worker can be included in the calculation of Social Security returns. Interval estimates of voters' family incomes from the U.S. Census Bureau were used to obtain the median voter's household earnings. The median voter's age is derived from the ages of those who voted in presidential elections, not from the ages of the entire electorate. The median voter's contributions to Social Security are the

  10. Problematising internal security: Crime, community and social exclusion

    Directory of Open Access Journals (Sweden)

    Kari Bruun

    2016-12-01

    Full Text Available This article examines the problematisation of crime, crime prevention and security in contemporary security policy programmes using three Finnish internal security programmes and theory-based content analysis. The study is based on the theory (the perspective of an analytics of government. The findings highlight the central meaning of social exclusion and community as security practices wherein social exclusion is seen as a threat to security and a risk for crime. Indeed, community-based crime prevention plays a central role in the programmes along with the worry about serious crimes and the high level of homicides. A fluid governing policy without crime and accidents is the implicit goal of these programmes.

  11. Social Security and Medicare Benefits

    Data.gov (United States)

    Social Security Administration — Cash benefits and rehabilitation benefits paid in each year from the Old-Age and Survivors Insurance, and Disability Insurance Trust Funds, and benefits paid from...

  12. Developing a secured social networking site using information security awareness techniques

    Directory of Open Access Journals (Sweden)

    Julius O. Okesola

    2014-11-01

    Full Text Available Background: Ever since social network sites (SNS became a global phenomenon in almost every industry, security has become a major concern to many SNS stakeholders. Several security techniques have been invented towards addressing SNS security, but information security awareness (ISA remains a critical point. Whilst very few users have used social circles and applications because of a lack of users’ awareness, the majority have found it difficult to determine the basis of categorising friends in a meaningful way for privacy and security policies settings. This has confirmed that technical control is just part of the security solutions and not necessarily a total solution. Changing human behaviour on SNSs is essential; hence the need for a privately enhanced ISA SNS. Objective: This article presented sOcialistOnline – a newly developed SNS, duly secured and platform independent with various ISA techniques fully implemented. Method: Following a detailed literature review of the related works, the SNS was developed on the basis of Object Oriented Programming (OOP approach, using PhP as the coding language with the MySQL database engine at the back end. Result: This study addressed the SNS requirements of privacy, security and services, and attributed them as the basis of architectural design for sOcialistOnline. SNS users are more aware of potential risk and the possible consequences of unsecured behaviours. Conclusion: ISA is focussed on the users who are often the greatest security risk on SNSs, regardless of technical securities implemented. Therefore SNSs are required to incorporate effective ISA into their platform and ensure users are motivated to embrace it.

  13. Predicting Social Security numbers from public data

    OpenAIRE

    Acquisti, Alessandro; Gross, Ralph

    2009-01-01

    Information about an individual's place and date of birth can be exploited to predict his or her Social Security number (SSN). Using only publicly available information, we observed a correlation between individuals' SSNs and their birth data and found that for younger cohorts the correlation allows statistical inference of private SSNs. The inferences are made possible by the public availability of the Social Security Administration's Death Master File and the widespread accessibility of per...

  14. Tax Compliance and Social Security Contributions – The Case Of Slovenia

    Directory of Open Access Journals (Sweden)

    Tomaz LESNIK

    2014-06-01

    Full Text Available In this paper, we will examine the causes behind the higher level of compliance with social security contributions in comparison with other tax categories in the case of Slovenia. The results of econometric models suggest that the activities of the Tax Administration of the Republic of Slovenia, which were more stringently performed in the area of social security contributions in the most recent period, are an important – but not the only factor – behind the higher level of compliance in connection with social security contributions. At the same time, the decrease in tax compliance with other taxes (income tax, corporate income tax, and VAT did not essentially influence the higher level of compliance with social security contributions. The more consistent treatment of unpaid social security contributions as a criminal offence and the higher public awareness about the importance of paying social security contributions in the latest period are recognized as important factors which simultaneously constitute the main difference between social security contributions and other taxes. The higher level of public awareness about the benefits that result from public services financed with taxes is recognized as a possible way to more optimally collect taxes in Slovenia.

  15. Research on Issues concerning Social Security for Migrant Workers in Harmonious Society

    OpenAIRE

    Zhang, Hua

    2013-01-01

    This article analyzes the status quo of social security for migrant workers in China, and points out that there are deep system and concept reasons for the lack of labor rights and interests security, social security, equality and the right to development, political participation channels for the current migrant workers. This article then expounds the adverse effects of lack of social security for migrant workers on building a harmonious society: the lack of social security for migrant worker...

  16. 28 CFR 700.25 - Use and collection of social security numbers.

    Science.gov (United States)

    2010-07-01

    ... numbers. (a) Each system manager of a system of records that utilizes Social Security numbers as a method... furnish Social Security numbers without statutory or regulatory authorization and that individuals who are requested to provide Social Security numbers voluntarily must be advised that furnishing the number is not...

  17. 24 CFR 200.6 - Employer identification and social security numbers.

    Science.gov (United States)

    2010-04-01

    ... identification and social security numbers. The requirements set forth in 24 CFR part 5, regarding the disclosure and verification of social security numbers and employer identification numbers by applicants and... security numbers. 200.6 Section 200.6 Housing and Urban Development Regulations Relating to Housing and...

  18. Research Advances of Social Security Problems in China —Visualization Research based on Bibliometrics

    Institute of Scientific and Technical Information of China (English)

    赵琳

    2016-01-01

    This article summarized the research progress and characteristics of Chinese social security issues from 2000 papers, which record in CNKI. We find that, the topic in the field of social security is board and dispersion. Due to the huge system and complex problem of social security, there is no central theme. Through cluster analysis, multi dimensional scaling analysis and social network analysis, we got the high frequency keywords atlas. Then, we summarized the research topic to six parts. They are rural social security, urban and rural social security co-ordination, vulnerable group social security, social security fund management, the social insurance system, and social security system and government responsibility. It summed up the theme of the module, meanwhile, combined the practice analysis.

  19. Towards Shibboleth-based security in the e-infrastructure for social sciences

    OpenAIRE

    Jie, Wei; Daw, Michael; Procter, Rob; Voss, Alex

    2007-01-01

    The e-Infrastructure for e-Social Sciences project leverages Grid computing technology to provide an integrated platform which enables social science researchers to securely access a variety of e-Science resources. Security underpins the e-Infrastructure and a security framework with authentication and authorization functionality is a core component of the e-Infrastructure for social sciences. To build the security framework, we adopt Shibboleth as the basic authentication and authorization i...

  20. The Relationship between Media Consumption and Feeling of Social Security

    OpenAIRE

    Bijan khajeNoori; Mehdi Kaveh

    2013-01-01

    IntroductionThe concept of social security and a Feeling of security and the citizens, as a key element in achieving the projected, is important Sociologists and criminologist shave always paid special attention has been sought. Study of the factors influencing the feeling of security, can increase the feeling of security is work. Also enhance citizens' feeling of security and welfare of the citizens and to accept responsibility and commitment will do. The widespread use of social media in re...

  1. 31 CFR 1.32 - Use and disclosure of social security numbers.

    Science.gov (United States)

    2010-07-01

    ... OF RECORDS Privacy Act § 1.32 Use and disclosure of social security numbers. (a) In general. An... such individual's refusal to disclose his social security number. (b) Exceptions. The provisions of... Federal statute, or (2) The disclosure of a social security number to any Federal, State, or local agency...

  2. 38 CFR 1.575 - Social security numbers in veterans' benefits matters.

    Science.gov (United States)

    2010-07-01

    ... 38 Pensions, Bonuses, and Veterans' Relief 1 2010-07-01 2010-07-01 false Social security numbers... Affairs Records § 1.575 Social security numbers in veterans' benefits matters. (a) Except as provided in... because of refusal to disclose to the Department of Veterans Affairs a social security number. (b) VA...

  3. 13 CFR 102.35 - Use and collection of Social Security Numbers.

    Science.gov (United States)

    2010-01-01

    ... § 102.35 Use and collection of Social Security Numbers. Each Program/Support Office Head or designee... their social security numbers, unless: (1) The collection is authorized either by a statute; or (2) The social security numbers are required under statute or regulation adopted prior to 1975 to verify the...

  4. Crowd Sensing-Enabling Security Service Recommendation for Social Fog Computing Systems.

    Science.gov (United States)

    Wu, Jun; Su, Zhou; Wang, Shen; Li, Jianhua

    2017-07-30

    Fog computing, shifting intelligence and resources from the remote cloud to edge networks, has the potential of providing low-latency for the communication from sensing data sources to users. For the objects from the Internet of Things (IoT) to the cloud, it is a new trend that the objects establish social-like relationships with each other, which efficiently brings the benefits of developed sociality to a complex environment. As fog service become more sophisticated, it will become more convenient for fog users to share their own services, resources, and data via social networks. Meanwhile, the efficient social organization can enable more flexible, secure, and collaborative networking. Aforementioned advantages make the social network a potential architecture for fog computing systems. In this paper, we design an architecture for social fog computing, in which the services of fog are provisioned based on "friend" relationships. To the best of our knowledge, this is the first attempt at an organized fog computing system-based social model. Meanwhile, social networking enhances the complexity and security risks of fog computing services, creating difficulties of security service recommendations in social fog computing. To address this, we propose a novel crowd sensing-enabling security service provisioning method to recommend security services accurately in social fog computing systems. Simulation results show the feasibilities and efficiency of the crowd sensing-enabling security service recommendation method for social fog computing systems.

  5. 28 CFR 802.23 - Use and disclosure of social security numbers.

    Science.gov (United States)

    2010-07-01

    ... provided by law because of such individual's refusal to disclose his or her social security number. (b... which is required by Federal statute, or (2) The disclosure of a social security number to any Federal... identity of an individual. (c) Requests for disclosure of social security number. If the Agency requests an...

  6. How to supplement Social Security fairly and effectively.

    Science.gov (United States)

    Ghilarducci, Teresa

    2010-04-01

    Over the past 3 decades, the base upon which Americans obtain income for retirement has become increasingly tied to fluctuations in the financial markets. Because Social Security provides a small percentage of pre-retirement income in retirement, most of the nation's workers need a supplement to Social Security. This study demonstrates the failure of the 401(k) system and advances a bold, but realistic, solution to America's crumbling retirement system: guaranteed retirement accounts (GRAs), a universal government program that supplements Social Security by providing guaranteed rates of return, by locking up balances until retirement, and by mandating annuities at retirement-with survivor's benefits. The GRA plan is compared to other proposals, including President Obama's, which aims to expand the voluntary, commercial, individually directed account-based system.

  7. 8 CFR 103.35 - Use and collection of Social Security numbers.

    Science.gov (United States)

    2010-01-01

    ... REGULATIONS POWERS AND DUTIES; AVAILABILITY OF RECORDS § 103.35 Use and collection of Social Security numbers. The use and collection of Social Security numbers shall be in accordance with 28 CFR 16.56. [40 FR... 8 Aliens and Nationality 1 2010-01-01 2010-01-01 false Use and collection of Social Security...

  8. 29 CFR 71.12 - Use and collection of social security numbers.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 1 2010-07-01 2010-07-01 true Use and collection of social security numbers. 71.12 Section... UNDER THE PRIVACY ACT OF 1974 General § 71.12 Use and collection of social security numbers. (a) Each component unit that requests an individual to disclose his social security account number shall provide the...

  9. Social Security Number Replacement Card Applications filed via the Internet

    Data.gov (United States)

    Social Security Administration — The Social Security Administration (SSA) provides a variety of ways to conduct business with the agency. SSA offers members of the public the opportunity to request...

  10. Crowd Sensing-Enabling Security Service Recommendation for Social Fog Computing Systems

    Directory of Open Access Journals (Sweden)

    Jun Wu

    2017-07-01

    Full Text Available Fog computing, shifting intelligence and resources from the remote cloud to edge networks, has the potential of providing low-latency for the communication from sensing data sources to users. For the objects from the Internet of Things (IoT to the cloud, it is a new trend that the objects establish social-like relationships with each other, which efficiently brings the benefits of developed sociality to a complex environment. As fog service become more sophisticated, it will become more convenient for fog users to share their own services, resources, and data via social networks. Meanwhile, the efficient social organization can enable more flexible, secure, and collaborative networking. Aforementioned advantages make the social network a potential architecture for fog computing systems. In this paper, we design an architecture for social fog computing, in which the services of fog are provisioned based on “friend” relationships. To the best of our knowledge, this is the first attempt at an organized fog computing system-based social model. Meanwhile, social networking enhances the complexity and security risks of fog computing services, creating difficulties of security service recommendations in social fog computing. To address this, we propose a novel crowd sensing-enabling security service provisioning method to recommend security services accurately in social fog computing systems. Simulation results show the feasibilities and efficiency of the crowd sensing-enabling security service recommendation method for social fog computing systems.

  11. Crowd Sensing-Enabling Security Service Recommendation for Social Fog Computing Systems

    Science.gov (United States)

    Wu, Jun; Su, Zhou; Li, Jianhua

    2017-01-01

    Fog computing, shifting intelligence and resources from the remote cloud to edge networks, has the potential of providing low-latency for the communication from sensing data sources to users. For the objects from the Internet of Things (IoT) to the cloud, it is a new trend that the objects establish social-like relationships with each other, which efficiently brings the benefits of developed sociality to a complex environment. As fog service become more sophisticated, it will become more convenient for fog users to share their own services, resources, and data via social networks. Meanwhile, the efficient social organization can enable more flexible, secure, and collaborative networking. Aforementioned advantages make the social network a potential architecture for fog computing systems. In this paper, we design an architecture for social fog computing, in which the services of fog are provisioned based on “friend” relationships. To the best of our knowledge, this is the first attempt at an organized fog computing system-based social model. Meanwhile, social networking enhances the complexity and security risks of fog computing services, creating difficulties of security service recommendations in social fog computing. To address this, we propose a novel crowd sensing-enabling security service provisioning method to recommend security services accurately in social fog computing systems. Simulation results show the feasibilities and efficiency of the crowd sensing-enabling security service recommendation method for social fog computing systems. PMID:28758943

  12. Financial forecasts accuracy in Brazil's social security system.

    Directory of Open Access Journals (Sweden)

    Carlos Patrick Alves da Silva

    Full Text Available Long-term social security statistical forecasts produced and disseminated by the Brazilian government aim to provide accurate results that would serve as background information for optimal policy decisions. These forecasts are being used as support for the government's proposed pension reform that plans to radically change the Brazilian Constitution insofar as Social Security is concerned. However, the reliability of official results is uncertain since no systematic evaluation of these forecasts has ever been published by the Brazilian government or anyone else. This paper aims to present a study of the accuracy and methodology of the instruments used by the Brazilian government to carry out long-term actuarial forecasts. We base our research on an empirical and probabilistic analysis of the official models. Our empirical analysis shows that the long-term Social Security forecasts are systematically biased in the short term and have significant errors that render them meaningless in the long run. Moreover, the low level of transparency in the methods impaired the replication of results published by the Brazilian Government and the use of outdated data compromises forecast results. In the theoretical analysis, based on a mathematical modeling approach, we discuss the complexity and limitations of the macroeconomic forecast through the computation of confidence intervals. We demonstrate the problems related to error measurement inherent to any forecasting process. We then extend this exercise to the computation of confidence intervals for Social Security forecasts. This mathematical exercise raises questions about the degree of reliability of the Social Security forecasts.

  13. Financial forecasts accuracy in Brazil's social security system.

    Science.gov (United States)

    Silva, Carlos Patrick Alves da; Puty, Claudio Alberto Castelo Branco; Silva, Marcelino Silva da; Carvalho, Solon Venâncio de; Francês, Carlos Renato Lisboa

    2017-01-01

    Long-term social security statistical forecasts produced and disseminated by the Brazilian government aim to provide accurate results that would serve as background information for optimal policy decisions. These forecasts are being used as support for the government's proposed pension reform that plans to radically change the Brazilian Constitution insofar as Social Security is concerned. However, the reliability of official results is uncertain since no systematic evaluation of these forecasts has ever been published by the Brazilian government or anyone else. This paper aims to present a study of the accuracy and methodology of the instruments used by the Brazilian government to carry out long-term actuarial forecasts. We base our research on an empirical and probabilistic analysis of the official models. Our empirical analysis shows that the long-term Social Security forecasts are systematically biased in the short term and have significant errors that render them meaningless in the long run. Moreover, the low level of transparency in the methods impaired the replication of results published by the Brazilian Government and the use of outdated data compromises forecast results. In the theoretical analysis, based on a mathematical modeling approach, we discuss the complexity and limitations of the macroeconomic forecast through the computation of confidence intervals. We demonstrate the problems related to error measurement inherent to any forecasting process. We then extend this exercise to the computation of confidence intervals for Social Security forecasts. This mathematical exercise raises questions about the degree of reliability of the Social Security forecasts.

  14. Principle Of Non-Regression And Social Security: Security And Trust Protection, Reservation Of The Possible And Non-Regression In The Fundamental Social Rights

    Directory of Open Access Journals (Sweden)

    Rodrigo Garcia Schwarz

    2016-12-01

    Full Text Available This paper aims to explain and analyze, from the perspective of the material and effective dimensions of fundamental social rights, questions that concern the relevance of security and trust for the social pact and, as a consequence, to the non-regression in the fundamental social rights in general and in the social security in particular. It reveals that, while the retrogression is not absolute, retrogression must be fully justified. The research is descriptive and explanatory, documentary-bibliographical.

  15. A Model of Social Security?

    DEFF Research Database (Denmark)

    Rom-Jensen, Byron Zachary

    2017-01-01

    of Scandinavian achievements were variable in their ideological outlook and sometimes deliberately challenged the existence and goals of New Deal policies. Moreover, this essay explores the usage of Scandinavia in New Deal social legislation by examining the policymaking rhetoric of the Social Security Act...... and its 1939 amendments. The surprising plasticity of the Scandinavian image amongst policymakers ultimately reveals the fluid nature of both New Deal-era politics and the Scandinavian images it appropriated....

  16. Fair Secure Computation with Reputation Assumptions in the Mobile Social Networks

    Directory of Open Access Journals (Sweden)

    Yilei Wang

    2015-01-01

    Full Text Available With the rapid development of mobile devices and wireless technologies, mobile social networks become increasingly available. People can implement many applications on the basis of mobile social networks. Secure computation, like exchanging information and file sharing, is one of such applications. Fairness in secure computation, which means that either all parties implement the application or none of them does, is deemed as an impossible task in traditional secure computation without mobile social networks. Here we regard the applications in mobile social networks as specific functions and stress on the achievement of fairness on these functions within mobile social networks in the presence of two rational parties. Rational parties value their utilities when they participate in secure computation protocol in mobile social networks. Therefore, we introduce reputation derived from mobile social networks into the utility definition such that rational parties have incentives to implement the applications for a higher utility. To the best of our knowledge, the protocol is the first fair secure computation in mobile social networks. Furthermore, it finishes within constant rounds and allows both parties to know the terminal round.

  17. Institutional Root Cause of the Irregularity of Social Security Funds in China

    Institute of Scientific and Technical Information of China (English)

    Bingwen Zheng

    2007-01-01

    This paper analyzes institutional defects in the Chinese social security system, based on irregularities in social security funds revealed in the Audit Report by the China National Audit Office. The author divides the irregularities into five categories according to the nature of fund use. The results show that the institutional root cause of the irregularities lies in the unreasonable design and operation of the social security system, which currently faces management and institutional risks. This paper argues that simple rhetoric about strengthening regulation and supervision cannot help to reduce illegal practices, or to realize risk control. The only solution is to reform the social security system. Specifically, the Chinese Government should regulate the administrative cost of the social security system,and the behavior of its agencies, through legislation, reform the investment regime to increase rate of return of pension assets, and adjust and reshape the existing social security system, so as to elevate its pooling level.

  18. 12 CFR 1204.9 - Does FHFA collect and use Social Security numbers?

    Science.gov (United States)

    2010-01-01

    ... OPERATIONS PRIVACY ACT IMPLEMENTATION § 1204.9 Does FHFA collect and use Social Security numbers? FHFA collects Social Security numbers only when it is necessary and authorized. At least annually, the Privacy... of refusing to provide their Social Security numbers, unless the collection is authorized either by a...

  19. ExpertiSZe, a tool for determining the effects of social security legislation

    NARCIS (Netherlands)

    Svensson, Jorgen S.; Kordelaar, P.J.M.; Kordelaar, P.J.M.; Wassink, J.G.J.; van 't Eind, G.J.; Grütters, C.A.F.M.

    1992-01-01

    Social security legislation plays an important role in the Dutch society. In view of this, the effects of social security legislation have to be analysed carefully before new legislation can be made. Due to the growing complexity of legislation on the social security domain, this analysis has become

  20. On China’s Social Security System and Traditional Chinese Culture

    Institute of Scientific and Technical Information of China (English)

    谢浙

    2017-01-01

    This paper explores the interrelation between China’s social security system and traditional Chinese culture, pointing out the meaning of the study, and that China’s social security system is a carrier and representation of traditional Chinese culture and

  1. Social Security Administration Retirement, Survivors, and Disability Insurance (RSDI) Improper Payments

    Data.gov (United States)

    Social Security Administration — This dataset shows improper payment experience for the Social Security Retirement, Survivors, and Disability Insurance program paid to workers, their dependents, and...

  2. A Guanxi Shibboleth based security infrastructure for e-social science

    OpenAIRE

    Jie, Wei; Young, Alistair; Arshad, Junaid; Finch, June; Procter, Rob; Turner, Andy

    2008-01-01

    An e-Social Science infrastructure generally has security requirements to protect their restricted resources or services. As a widely accepted authentication and authorization technology, Shibboleth supports the sharing of resources on interinstitutional federation. Guanxi is an open source implementation of the Shibboleth protocol and architecture. In this paper, we propose a security infrastructure for e-social science based on the Guanxi Shibboleth. This security infrastructure presents tw...

  3. Theory, Demonstration and Methods Research on Social Security of Migrant Workers by Domestic Scholar

    OpenAIRE

    Yang, Zhen; Wang, Weifang

    2011-01-01

    Social security of migrant workers has been significant in dissolving social contradictions and achieving the economic and social development in China during the transitional period. The researches of domestic scholar on social security of migrant workers can be classified into three categories. Firstly, theoretical analysis on social security of migrant workers, including researches on the appeal of social security and misunderstanding of recognition, theory-construction of rural worker soci...

  4. Social Security Contributions and Return Migration Among Older Male Mexican Immigrants.

    Science.gov (United States)

    Aguila, Emma; Vega, Alma

    2017-06-01

    For decades, scholars have studied the effects of immigration on the U.S. social security system. To date, this research has been primarily limited to migrants within the United States and does not consider those who return to their countries of origin. We estimate the proportion of male Mexican return migrants who contributed to the U.S. social security system and analyze their socioeconomic characteristics and migration histories. We also estimate the proportion that receive or expect to receive U.S. social security benefits. Using probit regression on the 2012 Mexican Health and Aging Study (MHAS), we describe the predictors of having contributed to the U.S. social security system among Mexican males in Mexico aged 50 years and older who at some point lived in the United States. We find that 32% of male return migrants reported having contributed to the U.S. social security system, but only 5% of those who contributed, received or expected to receive benefits. Those who reported having contributed spent more years in the United States and were more likely to be U.S. citizens or legal permanent residents than those who did not contribute. Immigrants often pay Old-Age, Survivors, and Disability Insurance taxes using legitimate or illegitimate social security numbers and return to their home countries without collecting U.S. social security benefits. © The Author 2017. Published by Oxford University Press on behalf of The Gerontological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  5. 36 CFR 1202.22 - Will NARA need my Social Security Number?

    Science.gov (United States)

    2010-07-01

    ... Will NARA need my Social Security Number? (a) Before a NARA employee or NARA contractor asks you to provide your social security number (SSN), he or she will ensure that the disclosure is required by... Security Number? 1202.22 Section 1202.22 Parks, Forests, and Public Property NATIONAL ARCHIVES AND RECORDS...

  6. Banner prints social security numbers

    Directory of Open Access Journals (Sweden)

    Robbins RA

    2014-02-01

    Full Text Available No abstract available. Article truncated at 150 words. The Monday edition of the Arizona Republic contained a story with potential interest to our readers. On the most recent address labels of Banner Health's magazine, Smart & Healthy, the addressee's Social Security or Medicare identification numbers, which are often identical to their Social Security numbers (1. The magazine was mailed to more than 50,000 recipients in Arizona late last week. The recipients are members of the Medicare Pioneer Accountable Care Organization, a government health-care plan that Banner serves. Banner generated its mailing list from information it received from the U.S. Centers for Medicare & Medicaid Services, which is an agency within the U.S. Department of Health & Human Services (HHS responsible for administration of several federal health-care programs. Although medical information has been protected by the Health Insurance Portability and Accountability Act (HIPAA since 1996, penalties were recently increased. Civil monetary penalties were increased from a maximum of $100 ...

  7. Social Security Number Verification Service (SSNVS)

    Data.gov (United States)

    Social Security Administration — SSNVS is a service offered by SSA's Business Services Online (BSO). It is used by employers and certain third-party submitters to verify the accuracy of the names...

  8. Information technology as a tool for the Italian Institute of Social Security (INPS) in the management of social security and civil disability: Pro and cons.

    Science.gov (United States)

    Sammicheli, Michele; Scaglione, Marcella

    2018-01-01

    We examine, from a medical-legal perspective, the pro and cons of the information technology procedures that the Italian Institute of Social Security (INPS) has implemented to manage the provision of social disability assistance, meaning that separate from the payment of pension contributions, being welfare, anchored to an administrative requirement by way of the compulsory payment of a minimum social security contribution.

  9. 20 CFR 422.104 - Who can be assigned a social security number.

    Science.gov (United States)

    2010-04-01

    ... 20 Employees' Benefits 2 2010-04-01 2010-04-01 false Who can be assigned a social security number... General Procedures § 422.104 Who can be assigned a social security number. (a) Persons eligible for SSN assignment. We can assign you a social security number if you meet the evidence requirements in § 422.107 and...

  10. Behavioral analysis of use personal service e-balance Indonesian social security

    Science.gov (United States)

    Wang, Gunawan; Fitriani, Novi; Nurul Fajar, Ahmad

    2017-09-01

    Indonesian Social Security is the one of the government agencies that is trusted to organize social security. With help of Information technology that growing these day, Indonesian Social Security is also developing E-Balance application, where previously all activities for checking balance is done by giving their slip details through the nearest branch to be distributed to each company. So far there is no research that reviewing e-Balance. Hence, the authors is interested to do research related factors that influence the behavior of the use of E-Balance Indonesian Social Security in the Jakarta area and model that can describe those factors Authors distributing questioners to 193 respondents and perform data processing. The result of this study is to know the factors that influence the behavior of use Personal Service E-Balance Indonesian Social Security and model that can describe those factors. The result shows that UTAUT 2 model is not match with this research and need to be enhanced. After enhancement, there are 3 factors that being significant. Such as Behavioral Intention, Effort Expectancy and Social Influence while the others are not supported and need to be customize.

  11. Evaluating pay-as-you-go social security systems

    OpenAIRE

    Bachmann, Andreas; Wüthrich, Kaspar

    2013-01-01

    This paper proposes a new method for welfare analysis of unfunded social security systems. Based on an overlapping generations model with endogenous labor supply, we derive a formula for the evaluation of existing pay-as-you-go social security systems that depends on impulse response functions and projected growth rates only. We propose an implementation strategy based on reduced form estimates of a VAR model that is valid under weak assumptions about the deep structure of the model. Our meth...

  12. Social security in developing countries : operation and dynamics of social security mechanisms in rural Swaziland

    NARCIS (Netherlands)

    Leliveld, A.H.M.

    1994-01-01

    This study, which is based on field research carried out in Swaziland from October 1989 to December 1990, starts with an introductory chapter followed by three theoretical chapters on social security in developing countries. The content of these chapters is illustrated with an extensive case study

  13. Security and Vulnerability Assessment of Social Media Sites: An Exploratory Study

    Science.gov (United States)

    Zhao, Jensen; Zhao, Sherry Y.

    2015-01-01

    While the growing popularity of social media has brought many benefits to society, it has also resulted in privacy and security threats. The authors assessed the security and vulnerability of 50 social media sites. The findings indicate that most sites (a) posted privacy and security policies but only a minority stated clearly their execution of…

  14. Modeling Nitrogen Decrease in Water Lettuce Ponds from Waste Stabilization Ponds

    Science.gov (United States)

    Putri, Gitta Agnes; Sunarsih

    2018-02-01

    This paper presents about the dynamic modeling of the Water Lettuce ponds as a form of improvement from the Water Hyacinth ponds. The purpose of this paper is to predict nitrogen decrease and nitrogen transformation in Water Lettuce ponds integrated with Waste Stabilization Ponds. The model consists of 4 mass balances, namely Dissolved Organic Nitrogen (DON), Particulate Organic Nitrogen (PON), ammonium (NH4+), Nitrate and Nitrite (NOx). The process of nitrogen transformation which considered in a Water Lettuce ponds, namely hydrolysis, mineralization, nitrification, denitrification, plant and bacterial uptake processes. Numerical simulations are performed by giving the values of parameters and the initial values of nitrogen compounds based on a review of previous studies. Numerical results show that the rate of change in the concentration of nitrogen compounds in the integration ponds of waste stabilization and water lettuce decreases and reaches stable at different times.

  15. Financial forecasts accuracy in Brazil’s social security system

    Science.gov (United States)

    2017-01-01

    Long-term social security statistical forecasts produced and disseminated by the Brazilian government aim to provide accurate results that would serve as background information for optimal policy decisions. These forecasts are being used as support for the government’s proposed pension reform that plans to radically change the Brazilian Constitution insofar as Social Security is concerned. However, the reliability of official results is uncertain since no systematic evaluation of these forecasts has ever been published by the Brazilian government or anyone else. This paper aims to present a study of the accuracy and methodology of the instruments used by the Brazilian government to carry out long-term actuarial forecasts. We base our research on an empirical and probabilistic analysis of the official models. Our empirical analysis shows that the long-term Social Security forecasts are systematically biased in the short term and have significant errors that render them meaningless in the long run. Moreover, the low level of transparency in the methods impaired the replication of results published by the Brazilian Government and the use of outdated data compromises forecast results. In the theoretical analysis, based on a mathematical modeling approach, we discuss the complexity and limitations of the macroeconomic forecast through the computation of confidence intervals. We demonstrate the problems related to error measurement inherent to any forecasting process. We then extend this exercise to the computation of confidence intervals for Social Security forecasts. This mathematical exercise raises questions about the degree of reliability of the Social Security forecasts. PMID:28859172

  16. Social security of a business entity: place and role of accounting

    OpenAIRE

    Жиглей, Ірина Вікторівна

    2017-01-01

    Concepts and levels of security on the whole as well as social security' of a business entity in particular have been considered. Factors of social insecurity have been enumerated. Disadvantages of social activity of business entities in Ukraine have been compared with the reflection of this activity in the accounting system.

  17. Effect of social capital on food security among rural farming ...

    African Journals Online (AJOL)

    The study analyzed the effect of social capital on food security of rural farming households in Abia State, Nigeria with specific focus on measuring social capital dimensions among the rural farming households; determining the food security status of the households; analyzing the influence of socioeconomic characteristics of ...

  18. [Evolution of worker's health in the social security medical examination in Brazil].

    Science.gov (United States)

    Pinto Júnior, Afrânio Gomes; Braga, Ana Maria Cheble Bahia; Roselli-Cruz, Amadeu

    2012-10-01

    In order to analyze the practice of the social security medical examination starting from the introduction of the worker's health paradigms, data was gathered on the granting of social security disability benefits to assess worker illness based on notification of work-related accidents in the cement industries of Rio de Janeiro. From 2007 to 2009 there was only one notification, which involved a worker handling toxic waste instead of the energy matrix. However, the analysis revealed sources and mechanisms of illness overlooked in the social security medical examination, which is still focused on the one-cause-only logic of occupational medicine. To achieve the worker's health paradigms, changes are required to alter the way of conducting the social security medical examination, by re-establishing partnerships, training human resources, adopting epidemiological indicators, as well as setting and assessing social security goals that transcend the mere granting of disability benefits.

  19. Walden Pond, Massachusetts: Environmental Setting and Current Investigations

    Science.gov (United States)

    Colman, John A.; Waldron, Marcus C.

    1998-01-01

    Introduction Walden Pond, in Concord, Massachusetts, is famous among lakes because of its unique social history. Walden was the setting for American naturalist Henry David Thoreau's well-known essay 'Walden; or, Life in the Woods,' first published in 1854. Thoreau lived and wrote at Walden Pond from July 1845 to September 1847. In 'Walden,' Thoreau combined highly admired writing on Transcendental philosophy with pioneering observations of aquatic ecology and physical aspects of limnology, the study of lakes. Because Thoreau also defended so effectively the value of living close to nature in the Walden woods, the pond is considered by many to be the birthplace of the American conservation movement. Visitors come from all over the world to the pond, which has been designated a National Historic Landmark, and its fame has resulted in a major fund drive to preserve the surrounding woods. Walden Pond has no surfacewater inflow or outflow, and much of its ground-water contributing area likely is preserved within the Walden Pond Reservation area (fig. 1). Only 15 miles from Boston, the pond is unusually clear and pristine for an urban-area lake. However, point sources of nutrients near the pond, and a large annual visitor attendance, concentrated during the summer when the swimming beach (fig. 2) is open, may contribute a nutrient load sufficient to change the pond environment. The occurrence of nuisance algal species, a recent beach closing, and an awareness of water-quality problems suffered by other ponds in the region raise concerns about the risk of ecological change at Walden Pond. Despite the role of Walden Pond as a cultural and environmental icon, little is known about the pond's ecological features, such as its internal nutrient cycling or the structure of its food web, nor have consistent measurements been made to determine whether these features are changing or are stable. Production rates of aquatic plants in lakes and ponds naturally undergo a slow increase

  20. 41 CFR 105-64.105 - When may Social Security Numbers (SSNs) be collected?

    Science.gov (United States)

    2010-07-01

    ...-64.105 When may Social Security Numbers (SSNs) be collected? (a) Statutory or regulatory authority must exist for collecting Social Security Numbers for record systems that use the SSNs as a method of... collect Social Security Numbers. (b) In compliance with OMB M-07-16 (Safeguarding Against and Responding...

  1. Stochastic models of the Social Security trust funds.

    Science.gov (United States)

    Burdick, Clark; Manchester, Joyce

    Each year in March, the Board of Trustees of the Social Security trust funds reports on the current and projected financial condition of the Social Security programs. Those programs, which pay monthly benefits to retired workers and their families, to the survivors of deceased workers, and to disabled workers and their families, are financed through the Old-Age, Survivors, and Disability Insurance (OASDI) Trust Funds. In their 2003 report, the Trustees present, for the first time, results from a stochastic model of the combined OASDI trust funds. Stochastic modeling is an important new tool for Social Security policy analysis and offers the promise of valuable new insights into the financial status of the OASDI trust funds and the effects of policy changes. The results presented in this article demonstrate that several stochastic models deliver broadly consistent results even though they use very different approaches and assumptions. However, they also show that the variation in trust fund outcomes differs as the approach and assumptions are varied. Which approach and assumptions are best suited for Social Security policy analysis remains an open question. Further research is needed before the promise of stochastic modeling is fully realized. For example, neither parameter uncertainty nor variability in ultimate assumption values is recognized explicitly in the analyses. Despite this caveat, stochastic modeling results are already shedding new light on the range and distribution of trust fund outcomes that might occur in the future.

  2. Social security status and mortality in Belgian and Spanish male workers

    Directory of Open Access Journals (Sweden)

    Xavier Duran

    2016-07-01

    Conclusion: MRR differences between Belgium and Spain for unemployed workers could be partly explained because of differences between the two social security systems. Future studies should further explore mortality differences between countries with different social security systems.

  3. Intermediate pond sizes contain the highest density, richness, and diversity of pond-breeding amphibians.

    Directory of Open Access Journals (Sweden)

    Raymond D Semlitsch

    Full Text Available We present data on amphibian density, species richness, and diversity from a 7140-ha area consisting of 200 ponds in the Midwestern U.S. that represents most of the possible lentic aquatic breeding habitats common in this region. Our study includes all possible breeding sites with natural and anthropogenic disturbance processes that can be missing from studies where sampling intensity is low, sample area is small, or partial disturbance gradients are sampled. We tested whether pond area was a significant predictor of density, species richness, and diversity of amphibians and if values peaked at intermediate pond areas. We found that in all cases a quadratic model fit our data significantly better than a linear model. Because small ponds have a high probability of pond drying and large ponds have a high probability of fish colonization and accumulation of invertebrate predators, drying and predation may be two mechanisms driving the peak of density and diversity towards intermediate values of pond size. We also found that not all intermediate sized ponds produced many larvae; in fact, some had low amphibian density, richness, and diversity. Further analyses of the subset of ponds represented in the peak of the area distribution showed that fish, hydroperiod, invertebrate density, and canopy are additional factors that drive density, richness and diversity of ponds up or down, when extremely small or large ponds are eliminated. Our results indicate that fishless ponds at intermediate sizes are more diverse, produce more larvae, and have greater potential to recruit juveniles into adult populations of most species sampled. Further, hylid and chorus frogs are found predictably more often in ephemeral ponds whereas bullfrogs, green frogs, and cricket frogs are found most often in permanent ponds with fish. Our data increase understanding of what factors structure and maintain amphibian diversity across large landscapes.

  4. How strong is the Social Security safety net? Using the Elder Index to assess gaps in economic security.

    Science.gov (United States)

    Mutchler, Jan E; Li, Yang; Xu, Ping

    2018-04-16

    Older Americans rely heavily on Social Security benefits (SSBs) to support independent lifestyles, and many have few or no additional sources of income. We establish the extent to which SSBs adequately support economic security, benchmarked by the Elder Economic Security Standard Index. We document variability across U.S. counties in the adequacy levels of SSBs among older adults. We find that the average SSBs fall short of what is required for economic security in every county in the United States, but the level of shortfall varies considerably by location. Policy implications relating to strengthening Social Security and other forms of retirement income are discussed.

  5. Using the social security system to deliver housing policy

    OpenAIRE

    Cheung, Louise, Gee Wing

    2016-01-01

    This thesis examines the interaction between housing policy and the social security benefits that support housing costs. Analysis concerns the extent and type of State intervention in housing, thus explaining the dynamic between State and individual responsibility in housing policy. This thesis involves an exploration of the different treatment of the owner-occupied and the rented housing sectors, with reference to the social security benefits which fund ongoing housing costs. This thesis see...

  6. [Changes in workers' rehabilitation procedures under the Brazilian social security system: modernization or undermining of social protection?].

    Science.gov (United States)

    Takahashi, Mara Alice Batista Conti; Iguti, Aparecida Mari

    2008-11-01

    This article describes the changes in workers' rehabilitation practices under the Brazilian National Social Security Institute (INSS) in the 1990s, in the context of neoliberal economic adjustment measures, based on an analysis of INSS documents from 1992 to 1997. The INSS plan for "modernization" of workers' rehabilitation led to: (1) dismantling of multidisciplinary teams; (2) induction of workers to accept proportional retirement pensions and voluntary layoffs; (3) under-utilization of the remaining INSS professional staff; (4) elimination of treatment programs for workers' rehabilitation; and (5) dismantling of INSS rehabilitation centers and clinics. The changes in the Brazilian social security system undermined the county's social security project and hegemony and reduced social security reform to a mere management and fiscal issue. Current "rehabilitation" falls far short of the institution's original purpose of social protection for workers, while aiming at economic regulation of the system to contain costs of workers' benefits. Workers that suffer work-related accidents are denied occupational rehabilitation, which aggravates their social disadvantage when they return to work.

  7. The Ruminant and the Pond

    OpenAIRE

    Lajarin-Encina, Aitor

    2015-01-01

    The Ruminant and the Pond presents a group of paintings and a film that explore contemporary psycho-social conditions through fictional narratives. Paintings and film explore territories of thinking and emotion engaging the audience in subjective digressions related to ideas of artificiality, relativeness, absurdity, futility or alienation in relation to intersubjective reality perception, production and representation. At the same time the project delves in the specific relationship existin...

  8. Security and trust in online social networks

    CERN Document Server

    Carminati, Barbara; Viviani, Marco; Viviani, Marco; Carminati, Barbara

    2013-01-01

    The enormous success and diffusion that online social networks (OSNs) are encountering nowadays is vastly apparent. Users' social interactions now occur using online social media as communication channels; personal information and activities are easily exchanged both for recreational and business purposes in order to obtain social or economic advantages. In this scenario, OSNs are considered critical applications with respect to the security of users and their resources, for their characteristics alone: the large amount of personal information they manage, big economic upturn connected to thei

  9. Legal aspects of Polish Tax and Social Security in Agriculture

    Directory of Open Access Journals (Sweden)

    Agnieszka Parlińska

    2008-12-01

    Full Text Available In the paper are describing legal aspects of treatment of farming sector in the tax and social security system in Poland. Tax System in Polish Agriculture is an integral part of Polish Tax System. Most taxes paid by farmers are property taxes, which supplied the budget of main local authority in Poland (municipality. In some cases farmers pay also personal income tax and value added tax like those, who run specific agricultural production as well individual farmers who operate through a limited liability company are subject to corporate income tax. The social security fund for farmers (known as KRUS was speared in 1990 from the social security system (ZUS. Farmers receive similar benefits with regard to health care, education, and social welfare although the contributions into the farmers system are lower then under the ZUS system.

  10. 24 CFR 5.216 - Disclosure and verification of Social Security and Employer Identification Numbers.

    Science.gov (United States)

    2010-04-01

    ... Social Security and Employer Identification Numbers. 5.216 Section 5.216 Housing and Urban Development...; WAIVERS Disclosure and Verification of Social Security Numbers and Employer Identification Numbers; Procedures for Obtaining Income Information Disclosure and Verification of Social Security Numbers and...

  11. The Mexican Social Security counterreform: pensions for profit.

    Science.gov (United States)

    Laurell, A C

    1999-01-01

    The social security counterreform, initiated in 1997, forms part of the neoliberal reorganization of Mexican society. The reform implies a profound change in the guiding principles of social security, as the public model based on integrality, solidarity, and redistribution is replaced by a model based on private administration of funds and services, individualization of entitlement, and reduction of rights. Its economic purpose is to move social services and benefits into the direct sphere of private capital accumulation. Although these changes will involve the whole social security system--old-age and disability pensions, health care, child care, and workers' compensation--they are most immediately evident in the pension scheme. The pay-as-you-go scheme is being replaced by privately managed individual retirement accounts which especially favor the big financial groups. These groups are gaining control over huge amounts of capital, are authorized to charge a high commission, and run no financial risks. The privatization of the system requires decisive state intervention with a legal change and a sizable state subsidy (1 to 1.5 percent of GNP) over five decades. The supposed positive impact on economic growth and employment is uncertain. A review of the new law and of the estimates of future annuities reveals shrinking pension coverage and inadequate incomes from pensions.

  12. Commission on Social Security

    CERN Multimedia

    Staff Association

    2010-01-01

    A commission studying past, present, and future social stakes ! For many years we have been hearing about the problems of funding of health insurance benefits in our different Member States. At CERN we are not totally immune from this problem.  To start with, let us recall that we have a mutual-benefit scheme which covers everyone for the consequences of the uncertainties in life (illness and accidents). The rules of our scheme are established by CERN in the framework of a sub-group of the Standing Concertation Committee, the CERN Health Insurance Scheme Board (CHISB), which is also in charge of managing the scheme.  The work of the “ProtSoc” (Protection SocialeSocial Security) commission, as we like to call it at the Staff Association, is to help your representatives on the CHISB, by preparing together with them the subjects and positions to be put forward and defended. This commission, which groups together the staff delegates who wish to invest their ...

  13. Econometric modeling of the balance of social security Brazil

    OpenAIRE

    Isaac Figueiredo de Sousa

    2009-01-01

    This work aims to build models using econometrics techniques to explain the components of the balance of Social Security System, or in other words, the net value of tax revenues and the benefit values of the General Regime of Social Security. These models were subjected to statistic validations indicated in the theoretical reference of econometrics, to apply the method of ordinary least square from the classic model of linear regression. From an increasing longevity and the gradual decr...

  14. Par Pond water balance

    International Nuclear Information System (INIS)

    Hiergesell, R.A.; Dixon, K.L.

    1996-06-01

    A water budget for the Par Pond hydrologic system was established in order to estimate the rate of groundwater influx to Par Pond. This estimate will be used in modeling exercises to predict Par Pond reservoir elevation and spillway discharge in the scenario where Savannah River water is no longer pumped and discharged into Par Pond. The principal of conservation of mass was used to develop the water budget, where water inflow was set equal to water outflow. Components of the water budget were identified, and the flux associated with each was determined. The water budget was considered balanced when inflow and outflow summed to zero. The results of this study suggest that Par Pond gains water from the groundwater system in the upper reaches of the reservoir, but looses water to the groundwater system near the dam. The rate of flux of groundwater from the water table aquifer into Par Pond was determined to be 13 cfs. The rate of flux from Par Pond to the water table aquifer near the dam was determined to be 7 cfs

  15. 24 CFR 242.68 - Disclosure and verification of Social Security and Employer Identification Numbers.

    Science.gov (United States)

    2010-04-01

    ... Social Security and Employer Identification Numbers. 242.68 Section 242.68 Housing and Urban Development... Requirements § 242.68 Disclosure and verification of Social Security and Employer Identification Numbers. The requirements set forth in 24 CFR part 5, regarding the disclosure and verification of Social Security Numbers...

  16. Balancing the Ecological Function of Residential Stormwater Ponds with Homeowner Landscaping Practices

    Science.gov (United States)

    Monaghan, Paul; Hu, Shangchun; Hansen, Gail; Ott, Emily; Nealis, Charles; Morera, Maria

    2016-11-01

    Stormwater ponds are installed in urban developments to provide the ecosystem services of flood control and water treatment. In coastal areas, these ponds are connected to watersheds that can drain directly into protected estuaries, making their design, function, and maintenance critical to environmental protection. However, stormwater ponds in residential areas are increasingly managed as aesthetic amenities that add value to real estate rather than as engineered devices with special maintenance requirements. To help extend the life of neighborhood stormwater systems and improve ecosystem services, homeowners should follow best management practices for nutrient management and add shoreline plantings and non-invasive, beneficial aquatic plants to their ponds. This study used focus group and survey research to document the knowledge, behaviors, and attitudes of homeowners living near stormwater ponds in a master-planned community in Florida. The study was designed to use a social marketing research approach to promote Extension best practices. Findings indicate that many residents were aware of the functional components of stormwater systems and respondents' receptivity to best management practices was mediated by age, their attitudes about water quality and whether their home was adjacent to a pond. These findings can be used to target Extension audiences and improve adoption of stormwater pond best management practices for increased protection of water quality.

  17. Interrelations between Energy Security Economics and Social Cohesion: Analysis of a Lithuanian Case

    Directory of Open Access Journals (Sweden)

    Dainius Genys

    2015-12-01

    Full Text Available Growing attention to sustainable development in academic discourse fosters discussions on how energy security affects society. In most cases the discussions consider the political and economic consequences, which affect or may affect the society. The aim of the article is to assess the impact of energy security economics on social cohesion in Lithuania. To achieve this aim the interrelations between energy security, energy economics and social cohesion are discussed. The theoretical framework of social cohesion (introduced by J. Jenson and P. Bernard is presented and applied in empirical analysis. The operationalization of empirical variables is based on economic, political and socio-cultural - activity areas, which are analyzed to verify the dichotomies between public attitudes and the actual behavior of society. These dichotomies help to distinguish six analytical dimensions, on the basis of which we created 17 empirical indicators, which analysis allows for describing the impact of Lithuanian energy security economics on social cohesion in quantitative data. The statistical analyses showed that the impact of attitudinal dimensions of energy security economics on social cohesion in Lithuania has an almost neutral effect: 3.05 (1-very negative; 3-neutral, 5-very positive. Whereas, the impact of behavioural dimensions of energy security economics on social cohesion has a negative effect: 2.47. The aggregated average of the overall impact of energy security economics on social cohesion in Lithuania has a negative effect: 2.76.

  18. The Impact of Emotional Social Support on Elders' Food Security

    Directory of Open Access Journals (Sweden)

    Jennifer Woltil

    2012-10-01

    Full Text Available Food insecurity persists as a social problem in the U.S., putting its victims at risk of poor nutritional and overall health. Being food insecure is defined as the limited or uncertain availability of nutritionally safe foods or the inability to access such foods in socially acceptable ways. Food insecurity research tends to focus on younger populations, particularly households with children. Food insecurity among the elderly is, therefore, poorly understood, both in prevalence and in prevention and intervention methods. Addressing this gap, the present study examined the relationships between emotional social support and food security using data from the 2007-08 National Health and Nutrition Examination Survey in an effort to further the understanding of food insecurity among elders. Specifically, the effects of an emotional social support presence, number of support sources and types of support sources on food security were observed using OLS linear regression. Results indicated that emotional social support alleviated the risk of food insecurity, even when household income, marital/partnership status and health status were controlled for. However, the source of the support mattered: elders who reported a spouse as the primary source of support were more likely to report being food secure, while those who reported an “other” primary source of support were more likely to report being food insecure. Number of support sources were not significantly related to food security.

  19. 12 CFR 404.21 - Submission of social security and passport numbers.

    Science.gov (United States)

    2010-01-01

    ... 12 Banks and Banking 4 2010-01-01 2010-01-01 false Submission of social security and passport numbers. 404.21 Section 404.21 Banks and Banking EXPORT-IMPORT BANK OF THE UNITED STATES INFORMATION DISCLOSURE Access to Records Under the Privacy Act of 1974 § 404.21 Submission of social security and...

  20. Social Security and the Retirement and Savings Behavior of Low Income Households1

    Science.gov (United States)

    van der Klaauw, Wilbert; Wolpin, Kenneth I.

    2011-01-01

    In this paper, we develop and estimate a model of retirement and savings incorporating limited borrowing, stochastic wage offers, health status and survival, social security benefits, Medicare and employer provided health insurance coverage, and intentional bequests. The model is estimated on sample of relatively poor households from the first three waves of the Health and Retirement Study (HRS), for whom we would expect social security income to be of particular importance. The estimated model is used to simulate the responses to changes in social security rules, including changes in benefit levels, in the payroll tax, in the social security earnings tax and in early and normal retirement ages. Welfare and budget consequences are estimated. PMID:21566719

  1. Symmetry in Social Construction during ERP Implementation: A Systems Security Perspective

    Directory of Open Access Journals (Sweden)

    Kennedy Njenga

    2014-03-01

    Full Text Available The principle of symmetry in enterprise resource planning (ERP systems implementation holds that the researcher should deploy impartial explanation in cases of success as in cases of failure. This article examines the symmetry intrinsic in social construction within the various stages of the ERP development life cycle, from initiation to implementation. Discourse on symmetry focuses on whether social constructs are able to influence ERP implementation positively (success or negatively (failure and whether this exposes ERP systems to information security risk. The theoretical lens of social construction of technology (SCOT theory, a theory premised on social interaction between agents and technology artefacts, is applied for this purpose. The research was quantitative with a survey having been conducted on information technology (IT and information security (IS practitioners. Results of the study highlight the significant role social construction plays because of the direct linkage it has with the implementation of information security controls in ERP systems.  The research delineated five social constructs, namely positional influence, reward influence, coercive influence, expert influence and referent influence. For purposes of this research and on the sampling criteria applied, the construct ‘expert influence’, a typology of social construction, is shown to be more domineering than other typologies of social construction and is seen as providing symmetrical balance between governing ERP security (success and risk (failure. Implications of these results for theory and practice are discussed in the main article.

  2. Implementation of Learning Organization Components in Ardabil Social Security Hospital

    OpenAIRE

    Azadeh Zirak

    2015-01-01

    This study aimed to investigate the implementation of learning organization characteristics based on Marquardt systematic model in Ardabil Social Security Hospital. The statistical population of this research was 234 male and female employees of Ardabil Social Security Hospital. For data collection, Marquardt questionnaire was used in the present study which its validity and reliability had been confirmed. Statistical analysis of hypotheses based on independent samples t-test showed that lear...

  3. Rural social security for Zimbabwe: Challenges and opportunities for ...

    African Journals Online (AJOL)

    For them, the remaining sources of livelihood now reside in non-formal social security arrangements anchored upon a staggering cultural base being eroded by the fast encroaching tide of neoliberal individualistic ways of life. Regrettably, government has got no institutional framework to promote non-formal security ...

  4. 78 FR 6168 - Public Availability of Social Security Administration Fiscal Year (FY) 2012 Service Contract...

    Science.gov (United States)

    2013-01-29

    ... SOCIAL SECURITY ADMINISTRATION [Docket No. SSA-2013-0001] Public Availability of Social Security Administration Fiscal Year (FY) 2012 Service Contract Inventory AGENCY: Social Security Administration. ACTION: Notice of Public Availability of FY 2012 Service Contract Inventories. SUMMARY: In accordance with...

  5. 77 FR 3836 - Public Availability of Social Security Administration Fiscal Year (FY) 2011 Service Contract...

    Science.gov (United States)

    2012-01-25

    ... SOCIAL SECURITY ADMINISTRATION [Docket No. SSA-2011-0105] Public Availability of Social Security Administration Fiscal Year (FY) 2011 Service Contract Inventory AGENCY: Social Security Administration. ACTION: Notice of Public Availability of FY 2011 Service Contract Inventories. SUMMARY: In accordance with...

  6. Social Security Numbers in Medicaid Records: Reporting and Validity, 2009

    OpenAIRE

    John L. Czajka; Shinu Verghese

    2013-01-01

    This report presents findings from a validation study of Social Security numbers (SSNs) in Medicaid Statistical Information System (MSIS) records for the fourth quarter of federal fiscal year 2009. The study produced results for the nation and the states on how often SSNs were reported in MSIS records and how often the reported SSNs passed a validation test at the U.S. Census Bureau, based on data obtained from the Social Security Administration.

  7. Social networking mining, visualization, and security

    CERN Document Server

    Dehuri, Satchidananda; Wang, Gi-Nam

    2014-01-01

    With the proliferation of social media and on-line communities in networked world a large gamut of data has been collected and stored in databases. The rate at which such data is stored is growing at a phenomenal rate and pushing the classical methods of data analysis to their limits. This book presents an integrated framework of recent empirical and theoretical research on social network analysis based on a wide range of techniques from various disciplines like data mining, social sciences, mathematics, statistics, physics, network science, machine learning with visualization techniques, and security. The book illustrates the potential of multi-disciplinary techniques in various real life problems and intends to motivate researchers in social network analysis to design more effective tools by integrating swarm intelligence and data mining.  

  8. Cohort profile: the Spanish WORKing life Social Security (WORKss) cohort study.

    Science.gov (United States)

    López Gómez, María Andrée; Durán, Xavier; Zaballa, Elena; Sanchez-Niubo, Albert; Delclos, George L; Benavides, Fernando G

    2016-03-07

    The global economy is changing the labour market and social protection systems in Europe. The effect of both changes on health needs to be monitored in view of an ageing population and the resulting increase in prevalence of chronic health conditions. The Spanish WORKing life Social Security (WORKss) cohort study provides unique longitudinal data to study the impact of labour trajectories and employment conditions on health, in terms of sickness absence, permanent disability and death. The WORKss cohort originated from the Continuous Working Life Sample (CWLS) generated by the General Directorate for the Organization of the Social Security in Spain. The CWLS contains a 4% representative sample of all individuals in contact with the Social Security system. The WORKss cohort exclusively includes individuals with a labour trajectory from 1981 or later. In 2004, the cohort was initiated with 1,022 ,79 Social Security members: 840,770 (82.2%) contributors and 182,009 (17.8%) beneficiaries aged 16 and older. The WORKss cohort includes demographic characteristics, chronological data about employment history, retirement, permanent disability and death. These data make possible the measurement of incidence of permanent disability, the number of potential years of working life lost, and the number of contracts and inactive periods with the Social Security system. The WORKss cohort was linked to temporary sickness absence registries to study medical diagnoses that lead to permanent disability and consequently to an earlier exit from the labour market in unhealthy conditions. Thanks to its administrative source, the WORKss cohort study will continue follow-up in the coming years, keeping the representativeness of the Spanish population affiliated to the Social Security system. The linkage between the WORKss cohort and temporary sickness absence registries is envisioned to continue. Future plans include the linkage of the cohort with mortality registries. Published by the BMJ

  9. Social Security for Composers and Free Lances.

    Science.gov (United States)

    Rossel-Majdan, Karl

    1982-01-01

    Internationally, cultural policies are tending toward increased socioeconomic and legal support for creative artists. Austrian cultural policies which encourage art and cultural professional organizations, increased copyright protection, and greater social security for free-lance artists are discussed. (AM)

  10. uG-LilyPond - Floating Plant Pond for Microgravity, Phase I

    Data.gov (United States)

    National Aeronautics and Space Administration — The proposed μG-LilyPond is an autonomous environmentally controlled floating plant cultivation system for use in microgravity. The μG-LilyPond concept expands the...

  11. Inner Security in Media from the perspective of social science and media studies

    Directory of Open Access Journals (Sweden)

    Oliver Bidlo

    2012-07-01

    Full Text Available Security and entertainment are moving closer together. The term Securitainment expresses in this context, the mediation of security through entertainment formats. This will open a new space for Internal Security, which includes its own actors and patterns of interpretation. This space is portrayed in the media and follows the logic of media for attention but is also part of the process of social control. The mass media are therefore an instance of the design of internal security, social control and an interpretation producer. Mass media become actors of the internal security. They provide a symbolic representation of security.

  12. 77 FR 54646 - Social Security Acquiescence Ruling (AR) 12-1(8); Correction; Petersen v. Astrue, 633 F.3d 633...

    Science.gov (United States)

    2012-09-05

    ... II of the Social Security Act AGENCY: Social Security Administration. ACTION: Notice of Social Security Acquiescence Ruling; Correction. SUMMARY: The Social Security Administration published a document... SOCIAL SECURITY ADMINISTRATION [Docket No. SSA-2012-0046] Social Security Acquiescence Ruling (AR...

  13. DATA Act File C Award Financial - Social Security

    Data.gov (United States)

    Social Security Administration — The DATA Act Information Model Schema Reporting Submission Specification File C. File C includes the agency award information from the financial accounting system at...

  14. Individual social security accounts: issues in assessing administrative feasibility and costs.

    Science.gov (United States)

    Olsen, K A; Salisbury, D L

    1998-11-01

    Whether to add individual accounts (IAs) to the Social Security system is a highly political issue. But almost lost in the debate so far have been any practical considerations about how to administer such accounts. Any discussion of whether to create individual accounts must also address the basic but critical questions of how they would work: Who would run them? What would they cost? Logistically, are they even possible? This EBRI Issue Brief provides an overview of the most salient administrative issues facing the current Social Security reform debate--issues that challenge proponents to carefully think through how their proposals could be implemented so as to achieve their policy goals. The options and difficulties in administering IAs raise concerns that cut across ideology. The object of this report is neither to dissuade the advocates nor support the critics of individual accounts. Rather, it is to bring practical considerations to a political debate that has largely ignored the pragmatic challenges of whether IAs would be too complex for participants to understand or too difficult for record keepers to administer. The major findings in this analysis include: Adding individual accounts to Social Security could be the largest undertaking in the history of the U.S. financial market, and no system to date has the capacity to administer such a system. The number of workers currently covered by Social Security--the largest single entitlement program in the nation--is at least four times higher than the combined number of all tax-favored employment-based retirement accounts in the United States, which are administered by hundreds of entities. Direct comparisons between employment-based retirement savings plans and Social Security reform are tenuous at best. Social Security covers workers and businesses that are disproportionately excluded from employment-based plans. Because of these differences, a system of individual Social Security accounts would be more

  15. Social Security Contribution to Productivity and Wages in Labour Organization Perspective

    Science.gov (United States)

    Supriadi, Y. N.

    2017-03-01

    This research is investigating the discrepancy fulfilment of the right to social security and decent wages to increase labour productivity in the perspective of labour organizations, in which the company provides social security, and wages have not been able to meet the needs of workers, on the other hand, the workers are always required to increase productivity. Therefore, this study aims to identify the social security and wages that affect labour productivity. So this research will provide input to the company to undertake effective measures and efficient for the company’s sustainability. This research was conducted using a survey method approach and quantitative data analysis techniques that are causal comparative sample of 223 respondents from 504 study population includes all labour organization’s District and municipal in Banten Province. The results showed the significant influence of social security and wages to increase labour productivity. Therefore, companies are required to act strategically in maintaining prohibitionists labour through re-design of the work environment, increase workers’ participation, intervention, and satisfy the needs of workers whose impact will be realized understanding between workers and companies in maintaining the company’s business.

  16. Exploring the youth experience about sense of social security: a qualitative study.

    Science.gov (United States)

    Chinekesh, Ahdieh; Hosseini, Seyed Ali; Mohammadi, Farahnaz; Motlagh, Mohammad Esmael; Eftekhari, Monir Baradaran; Ardalan, Gelayol; Djalalinia, Shirin

    2017-12-01

    Undoubtedly, one of the vital needs of man is security. Determinants and related factors to sense of social security is one of the most important research priorities, especially in adolescents and young people. To identify the factors affecting the social security of the youth. In 2017, using conventional content analysis, and benefiting from semi-structured in-depth interviews, we conducted a qualitative study exploring the opinions of young people about their feelings regarding social security. First, a targeted sampling method was determined to collect the data. Participants were young volunteers aged 18 to 30 who were selected from Tehran, the capital of Iran. Inclusion criteria for participants were willingness to participate in the study and ability to express their experiences. Data was extracted from 21 participants. The participants consisted of 21 young people who met the study inclusion criteria, of whom 12 participants were male. Their mean age was 24.4±0.41 years and their education varied from primary school to master's degree. Under two main categories of the need for economic and financial security and the need for a safe society, we extracted 11 subcategories following 32 codes. According to the findings, most participants agreed on the important role that sense of social security has in their lives and their health. The important role of sense of social security in participant's lives and health was the main important point of our findings, emphasized by most of participants. Based on the results; the assessment of the specific needs of different target groups, the design, development and implementation of health programs led to more effective interventions.

  17. SOCIAL CAPITAL AS THE BASIS FOR THE FORMATION OF SOCIO-ECONOMIC SECURITY IN RURAL AREAS

    Directory of Open Access Journals (Sweden)

    Andrii Sukhostavets

    2017-09-01

    Full Text Available Social capital is the basis for the definition of the future concept of rural areas management. Therefore, one of the most important tasks is to determine the various factors of existence, development, and formation of social capital. One of these factors is the security of rural areas and the definition of how social capital affects it. The analysis of the available scientific works in various areas reveals the lack of consensus in the definition of the category “socio-economic security of rural areas”. This is due to the fact that the definition of social and economic security of rural areas is identified with such concepts as the ability to provide resistance to various internal and external environmental influences. The purpose of the study is to determine the nature of social capital, as well as to study its impact on the socio-economic security of the state. The methodology of the research is based on the monographic method, the method of dialectic cognition, the scenario methods used to find the optimal scenario implementation option; SWOT-analysis is used to assess the positive or negative impact of social capital on the socio-economic security of rural areas. Understanding the essence of socio-economic security has led to the conclusion that it consists of economic, social, environmental and other types of security. The term “social security” in the understanding of researchers usually has two interpretations: traditional (absence of threats to the society and alternative (absence of threats from the society. It is proved that the social security of the region should be focused on ensuring primarily human rights and freedoms, namely, personal, political, social, economic, cultural, environmental, and family ones. Social and economic security should also provide social standards and guarantees, as well as norms. The economic basis of the security of rural areas is manifested in the development of market relations, infrastructure

  18. 216-B-3 expansion ponds closure plan

    International Nuclear Information System (INIS)

    1994-10-01

    This document describes the activities for clean closure under the Resource Conservation and Recovery Act of 1976 (RCRA) of the 216-B-3 Expansion Ponds. The 216-B-3 Expansion Ponds are operated by the US Department of Energy, Richland Operations Office (DOE-RL) and co-operated by Westinghouse Hanford Company (Westinghouse Hanford). The 216-B-3 Expansion Ponds consists of a series of three earthen, unlined, interconnected ponds that receive waste water from various 200 East Area operating facilities. The 3A, 3B, and 3C ponds are referred to as Expansion Ponds because they expanded the capability of the B Pond System. Waste water (primarily cooling water, steam condensate, and sanitary water) from various 200 East Area facilities is discharged to the Bypass pipe (Project X-009). Water discharged to the Bypass pipe flows directly into the 216-B-3C Pond. The ponds were operated in a cascade mode, where the Main Pond overflowed into the 3A Pond and the 3A Pond overflowed into the 3C Pond. The 3B Pond has not received waste water since May 1985; however, when in operation, the 3B Pond received overflow from the 3A Pond. In the past, waste water discharges to the Expansion Ponds had the potential to have contained mixed waste (radioactive waste and dangerous waste). The radioactive portion of mixed waste has been interpreted by the US Department of Energy (DOE) to be regulated under the Atomic Energy Act of 1954; the dangerous waste portion of mixed waste is regulated under RCRA

  19. 216-B-3 expansion ponds closure plan

    Energy Technology Data Exchange (ETDEWEB)

    1994-10-01

    This document describes the activities for clean closure under the Resource Conservation and Recovery Act of 1976 (RCRA) of the 216-B-3 Expansion Ponds. The 216-B-3 Expansion Ponds are operated by the US Department of Energy, Richland Operations Office (DOE-RL) and co-operated by Westinghouse Hanford Company (Westinghouse Hanford). The 216-B-3 Expansion Ponds consists of a series of three earthen, unlined, interconnected ponds that receive waste water from various 200 East Area operating facilities. The 3A, 3B, and 3C ponds are referred to as Expansion Ponds because they expanded the capability of the B Pond System. Waste water (primarily cooling water, steam condensate, and sanitary water) from various 200 East Area facilities is discharged to the Bypass pipe (Project X-009). Water discharged to the Bypass pipe flows directly into the 216-B-3C Pond. The ponds were operated in a cascade mode, where the Main Pond overflowed into the 3A Pond and the 3A Pond overflowed into the 3C Pond. The 3B Pond has not received waste water since May 1985; however, when in operation, the 3B Pond received overflow from the 3A Pond. In the past, waste water discharges to the Expansion Ponds had the potential to have contained mixed waste (radioactive waste and dangerous waste). The radioactive portion of mixed waste has been interpreted by the US Department of Energy (DOE) to be regulated under the Atomic Energy Act of 1954; the dangerous waste portion of mixed waste is regulated under RCRA.

  20. A Game-Theoretical Approach to Multimedia Social Networks Security

    Science.gov (United States)

    Liu, Enqiang; Liu, Zengliang; Shao, Fei; Zhang, Zhiyong

    2014-01-01

    The contents access and sharing in multimedia social networks (MSNs) mainly rely on access control models and mechanisms. Simple adoptions of security policies in the traditional access control model cannot effectively establish a trust relationship among parties. This paper proposed a novel two-party trust architecture (TPTA) to apply in a generic MSN scenario. According to the architecture, security policies are adopted through game-theoretic analyses and decisions. Based on formalized utilities of security policies and security rules, the choice of security policies in content access is described as a game between the content provider and the content requester. By the game method for the combination of security policies utility and its influences on each party's benefits, the Nash equilibrium is achieved, that is, an optimal and stable combination of security policies, to establish and enhance trust among stakeholders. PMID:24977226

  1. Comparison of the Efficiency of Budget Financing and the Social Security of a Region

    Directory of Open Access Journals (Sweden)

    Aleksandr Anatolyevich Kuklin

    2016-09-01

    Full Text Available In the article, the theoretical and economic aspects of the category “security” are considered, the distinction between philosophical and socio-economic approaches to the understanding of social security is drawn. From the point of view of the system approach, the place of social security for national security protection is determined. The theoretical content of the category “social security” is shown; in the authors’ treatment, the specifying concepts such as “social risks”, “danger”, “threat” are given. For the purpose of risks identification (deviations and the revealing of the factors of inefficient financing, the methodological tools for the assessment of the social security of a region are proposed. These tools are based on the integrated assessment of the regional socio-economic indexes and the indexes assessing the budgetary financing of the territory. The methodical approach offered by the authors is based on the detection of dependencies between the social and financial security of a region. As estimates, the indicators reflecting the level of social security in the territory of residence are chosen: income, expenses of the consolidated budget of a region, growth rate of gross regional product, rate of natural population growth, level of unemployment, population share with the income below living level. This approach is approved on the example of Perm Krai and Sverdlovsk region; the regularities, the favourable and adverse periods for social security of the region are revealed. The received estimates are ranged depending on a temporary log of growth (fall, elasticity and sensitivity to the budget financing. The results of the assessment have shown that, from the point of view of social security protection, Perm Krai has entered a stage of deep recession, which started in 2012. Similar tendencies are observed in the Sverdlovsk region. Nevertheless, considering both a visible variety and the dominating influence of

  2. Financial Hardship Before and After Social Security's Early Eligibility Age

    OpenAIRE

    Richard W. Johnson; Gordon B.T. Mermin

    2009-01-01

    Although poverty rates for Americans ages 65 and older have plunged over the past half century, many people continue to fall into poverty in their late fifties and early sixties. This study examines financial hardship rates in the years before qualifying for Social Security retirement benefits at age 62 and investigates how the availability of Social Security improves economic well-being at later ages. The analysis follows a sample of adults from the 1937-39 birth cohort for 14 years, trackin...

  3. A profile of social security child beneficiaries and their families: sociodemographic and economic characteristics.

    Science.gov (United States)

    Tamborini, Christopher R; Cupito, Emily; Shoffner, Dave

    2011-01-01

    Using a rich dataset that links the Census Bureau's Survey of Income and Program Participation calendar-year 2004 file with Social Security benefit records, this article provides a portrait of the sociodemographic and economic characteristics of Social Security child beneficiaries. We find that the incidence ofbenefit receipt in the child population differs substantially across individual and family-level characteristics. Average benefit amounts also vary across subgroups and benefit types. The findings provide a better understanding of the importance of Social Security to families with beneficiary children. Social Security is a major source of family income for many child beneficiaries, particularly among those with low income or family heads with lower education and labor earnings.

  4. Populous, Precarious – Protected? The Paradox of Social Security for South Asian Agricultural Workers

    NARCIS (Netherlands)

    K.A. Siegmann (Karin Astrid)

    2012-01-01

    textabstractAbstract Social security is firmly rising on the international agenda. Discourses that depart from the assumption that societies can only afford a certain level of social expenditure give way to a recognition that social security is an important investment in development. New

  5. Speeding decisions. Social security's information exchange program.

    Science.gov (United States)

    Winter, Kitt; Hastings, Bob

    2011-05-01

    The Social Security Administration has plenty of reasons to streamline its records request process-more than 15 million reasons each year, in fact. That's why it has been pioneering information exchange projects with the private sector, including use of the Nationwide Health Information Network.

  6. Social Protection and Economic Security of North African Migrant Workers in France

    Directory of Open Access Journals (Sweden)

    CLAUDIA PARASCHIVESCU

    2013-05-01

    Full Text Available This essay describes and analyses the situation of Maghrebis in France, as far as social security is concerned. The paradoxical situation experienced by these immigrants is related to their eligibility for social security and their discrimination on the labour market. As such, Maghrebis form the precarious layer of French society.

  7. Heavy metal composition in stormwater and retention in ponds dependent on pond age, design and catchment type

    DEFF Research Database (Denmark)

    Egemose, Sara; Sønderup, Melanie J.; Grudinina, Anna

    2015-01-01

    Heavy metals have toxic effects on flora and fauna in the aquatic environments and are of great concern in stormwater. Heavy metal runoff was studied in 37 stormwater ponds in Denmark with varying heavy metal load, catchment type and pond design. The studied metals were Cu, Cr, Cd, Pb, Ni and Zn...... difficult to retain. The removal efficiency in the ponds varied considerably, with the highest retention of Pb, Ni and Zn due to higher particulate fraction. The retention increased with increased pond volume-to-reduced catchment area ratio. In addition, the pond age affected the efficiency; whereas ponds...... less than 1-2 years efficiently removed all metals, 30-40-year-old ponds only removed Pb, Ni and Zn, but steeply decreasing over the years. Physical parameters such as pond size, age and sedimentation patterns were found to play a more significant role in the removal compared with chemical parameters...

  8. The Approaches to Narrowing Urban-Rural Income Gap——From the Perspective of Rural Social Security

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    From the situations about the incomes and life quality of the urban and rural residents,the thesis briefly introduces the status quo of the urban-rural income gap and explores the impact of the income gap on social economy:firstly,it hampers economic development;secondly,it is detrimental to the social development.Then the thesis analyzes the role of a sound social security in narrowing urban-rural income gap:at first,it broadens the institutional environment of improving the agricultural efficiency;secondly,it eliminates the uncertainties influencing the farmers’ income;thirdly,it improves the farmers’ capacity to increase income;at last,it enhances the farmers’ consciousness of wealth.Next the thesis inquires into the problems existing in the system of rural social security:the first problem is more obviously fragmented system;the second is inadequate security projects and narrower coverage;the third is an obvious lack of equality in urban and rural security;the fourth is even less sound management system;the last is the lagging of legislation.Afterwards the thesis proposes the countermeasures and suggestions to improve the system of rural social security and narrow urban-rural income gap:firstly,to integrate the social security system in rural areas;secondly,to perfect security projects and enhance the security system;thirdly,to integrate the administrative management of social security;at last,to enforce the legal system.

  9. 20 CFR 423.1 - Suits against the Social Security Administration and its employees in their official capacities.

    Science.gov (United States)

    2010-04-01

    ... Federal Register, and are available on-line at the Social Security Administration's Internet site, http... 20 Employees' Benefits 2 2010-04-01 2010-04-01 false Suits against the Social Security... SECURITY ADMINISTRATION SERVICE OF PROCESS § 423.1 Suits against the Social Security Administration and its...

  10. Identifying the Enemy: Social Categorization and National Security Policy

    Science.gov (United States)

    Unsworth, Kristene

    2010-01-01

    This dissertation seeks to understand the interplay between informal articulations of social categories and formal instantiations of those categories in official language. Specifically, it explores the process of social categorization as it is used to identify threats to national security. The research employed a qualitative, document-based,…

  11. New government to make social security cutbacks

    NARCIS (Netherlands)

    Grünell, M.

    2003-01-01

    In May 2003, a new coalition government of the Christian Democrats and two liberal parties, VVD and D66, took office in the Netherlands. The parties' coalition agreement provides for major cutbacks in public spending, largely targeted on social security expenditure. The trade unions are fiercely

  12. SOCIAL SECURITY OF TURKISH ATHLETES

    Directory of Open Access Journals (Sweden)

    Barış ÖZTUNA

    2015-07-01

    Full Text Available Law No. 5510 realized within the social security reform aims providing a structure which presents equal scope and quality of social security service other all citizens. According to Labor Law No 4857, unionization of sportsmen in Turkish legal environment is possible, sport clubs and sportsmen are continuing to live without so many rights and obligations but they didn’t. Aim of this study; to prove sportsmen of location of the labour law and to mark off. The purpose of the study is explained according to Law No. 4857 and Law No. 5510 Turkish athletes. Profesional athletes deemed to be insurance holders for the purposes of implementing short and long term insurance branches of No 5510 Law. But amateur athletes don't seem to be insurance holders for the purposes of implementing short and long term insurance branches of No 5510 Law. According to the law 5774 regarding to be called as an g overnment athlete, within the adults category of the sports that are accepted as olympic, paralympic and deaflympic; pension is paid to the amateur athletes who became first, second or third at Olymic games, World or European Champions as an individual or team sports and to the national team coaches and assistant coaches of the athletes’ who became Olympic or World Champion as a team.

  13. How portable is social security for migrant workers? : A review of the literature

    NARCIS (Netherlands)

    N. Taha (Nurulsyahirah); M. Messkoub (Mahmood); K.A. Siegmann (Karin Astrid)

    2013-01-01

    textabstractThis paper reviews the literature on the portability of social security entitlements for migrant workers, who moved along North-North, South- North, and South-South migration flows. Portability of social security entitlements is the ability of migrant workers to preserve, maintain, and

  14. Reforming the South African Social Security Adjudication System ...

    African Journals Online (AJOL)

    Reforming the South African Social Security Adjudication System: innovative experiences ... Dispute resolution systems in the labour relations, business competition ... the rights of access to justice, to a fair trial and to just administrative action).

  15. Comparison between field data and ultimate heat-sink cooling-pond and spray-pond models

    International Nuclear Information System (INIS)

    Codell, R.

    1982-09-01

    Two previously published reports, NUREG-0693 and NUREG-0733, presented models and methods by which ultimate heat sink cooling ponds and spray ponds used for safety-related water supplies in nuclear power plants could be analyzed for design-basis conditions of heat load and meteorology. These models were only partially verified with field data. The present report compares the NRC models to data collected for NRC by Battelle Pacific Northwest Laboratories on the performance of small geothermally heated ponds and spray ponds. These comparisons generally support the conclusion that the NRC models are useful tools in predicting ultimate heat sink performance

  16. Pond-aquifer flow and water availability in the vicinity of two coastal area seepage ponds, Glynn and Bulloch Counties, Georgia

    Science.gov (United States)

    Clarke, John S.; Rumman, Malek Abu

    2005-01-01

    Pond-aquifer flow and water availability at excavated seepage pond sites in Glynn County and in southern Bulloch County, Georgia, were evaluated to determine their potential as sources of water supply for irrigation. Excavated seepage ponds derive water primarily from ground water seeping into the pond, in a manner similar to a dug well completed in a surficial aquifer. The availability of water from seepage ponds is controlled by the permeability of surficial deposits, the amount of precipitation recharging the ground-water system, and the volume of water stored in the pond. The viability of seepage ponds as supplies for irrigation is limited by low seepage rates and high dependence on climatic conditions. Ponds will not refill unless there is adequate precipitation to recharge the surficial aquifer, which subsequently drains (seeps) into the pond. Ground-water seepage was estimated using a water-budget approach that utilized on-site climatic and hydrologic measurements, computing pond-volume changes during pond pumping tests, and by digital simulation using steady-state and transient ground-water flow models. From August 1999 to May 2000, the Glynn County pond was mostly losing water (as indicated by negative net seepage); whereas from October 2000 to June 2001, the Bulloch County pond was mostly gaining water. At both sites, most ground-water seepage entered the pond following major rainfall events that provided recharge to the surficial aquifer. Net ground-water seepage, estimated using water-budget analysis and simulation, ranged from -11.5 to 15 gallons per minute (gal/min) at the Glynn County pond site and from -55 to 31 gal/min at the Bulloch County pond site. Simulated values during pumping tests indicate that groundwater seepage to both ponds increases with decreased pond stage. At the Glynn County pond, simulated net ground-water seepage varied between 7.8 gal/min at the beginning of the test (high pond stage and low hydraulic gradient) and 103 gal

  17. Lake or Pond WBID

    Data.gov (United States)

    Vermont Center for Geographic Information — The VT DEC (Vermont Department of Environmental Conservation) manages an inventory of lake and pond information. The "Lakes and Ponds Inventory" stores the Water...

  18. A legislative history of the Social Security Protection Act of 2004.

    Science.gov (United States)

    Hansen, Erik

    2008-01-01

    Passage of the original Social Security Act in 1935, Public Law (P.L.) 74-271, represented one of the watershed achievements of social welfare reform in American history. For the first time, workers were guaranteed a basic floor of protection against the hardships of poverty. In the ensuing decades, more than 100 million beneficiaries have realized the value of this protection through the receipt of monthly Social Security payments. As this guarantee has endured and progressed, the policies and administration of such a vast and complex program have required ongoing modifications-more than 150 such revisions over the past 73 years. To some extent, these amendments can be seen as an ongoing refinement process, with the Social Security Protection Act of 2004 (SSPA) being another incremental step in the development of a social insurance program that best meets the evolving needs of American society. This article discusses the legislative history of the SSPA in detail. It includes summaries of the provisions and a chronology of the modification of these proposals as they passed through the House and Senate, and ultimately to the president's desk.

  19. The Key Conceptions of Social Security: the International Practice and Ukraine

    Directory of Open Access Journals (Sweden)

    Dluhopolska Tetiana I.

    2017-02-01

    Full Text Available The world-wide globalization processes and the political-military conflicts have exacerbated the problem of social security of the people of various world countries, which is usually seen from the perspective of both the State and the individual citizen. The article is aimed at analyzing the existing conceptions of social security from different perspectives – political, economic efficiency, and narrative. An analysis of political theories of social security (majority rational voting; pressure groups has determined that they are based on the redistribution processes, and winning of the individual economic agents is achieved in the political struggle for various «social prizes». An analysis of theories of efficiency (optimal redistribution; optimal retirement insurance; prodigal father; misguided Keynesian; longevity insurance; government economizes on administration costs; return on human capital investment has determined that they rely on market «fiasco» and can help in understanding which from the social protection programs minimize market failures. An analysis of the descriptive (narrative theories (chain letters; lump of labor; monopoly capitalism; nearly rational policy has determined that they are difficult subject to the mathematical interpretation and partially repeat ideas of the previous concepts.

  20. South Bay Salt Pond Tidal Marsh Restoration at Pond A17 Project

    Science.gov (United States)

    Information about the SFBWQP South Bay Salt Pond Tidal Marsh Restoration at Pond A17 Project, part of an EPA competitive grant program to improve SF Bay water quality focused on restoring impaired waters and enhancing aquatic resources.

  1. Changes in tundra pond limnology: re-sampling Alaskan ponds after 40 years.

    Science.gov (United States)

    Lougheed, Vanessa L; Butler, Malcolm G; McEwen, Daniel C; Hobbie, John E

    2011-09-01

    The arctic tundra ponds at the International Biological Program (IBP) site in Barrow, AK, were studied extensively in the 1970s; however, very little aquatic research has been conducted there for over three decades. Due to the rapid climate changes already occurring in northern Alaska, identifying any changes in the ponds' structure and function over the past 30-40 years can help identify any potential climate-related impacts. Current research on the IBP ponds has revealed significant changes in the physical, chemical, and biological characteristics of these ponds over time. These changes include increased water temperatures, increased water column nutrient concentrations, the presence of at least one new chironomid species, and increased macrophyte cover. However, we have also observed significant annual variation in many measured variables and caution that this variation must be taken into account when attempting to make statements about longer-term change. The Barrow IBP tundra ponds represent one of the very few locations in the Arctic where long-term data are available on freshwater ecosystem structure and function. Continued monitoring and protection of these invaluable sites is required to help understand the implications of climate change on freshwater ecosystems in the Arctic.

  2. Unmasking the social engineer the human element of security

    CERN Document Server

    Hadnagy, Christopher

    2014-01-01

    Learn to identify the social engineer by non-verbal behavior Unmasking the Social Engineer: The Human Element of Security focuses on combining the science of understanding non-verbal communications with the knowledge of how social engineers, scam artists and con men use these skills to build feelings of trust and rapport in their targets. The author helps readers understand how to identify and detect social engineers and scammers by analyzing their non-verbal behavior. Unmasking the Social Engineer shows how attacks work, explains nonverbal communications, and demonstrates with visuals the c

  3. The Praxis of Social Enterprise and Human Security: An Applied Research Agenda

    Directory of Open Access Journals (Sweden)

    Malcolm David Brown

    2014-01-01

    Full Text Available The growth of social enterprise within development NGO work might lead one to suspect it has been irredeemably corrupted by neo-liberal capitalism. However, using the tools of capitalism is not the same as subscribing to the values of capitalism. This paper is situated at the intersection of five fields: human security, international development, social enterprise, social franchising, and left-wing anti-capitalist thought. It examines the relevance of social en­terprise to human security and to development, the relationship between social enterprise and the anti-capitalist values of the left, and it then focuses on social franchising—a subset of social enterprise that highlights the importance of cooperation—suggesting that it may be a useful methodology for NGOs carrying out educational work in parts of the developing world. It syn­thesises and extends ideas that I have presented elsewhere [1-3], it draws on ethnographic fieldwork on the Thai-Burma border, and it puts forward an agenda for further applied research that is rooted in a sociological analysis of civil society and contributes to the human security paradigm.

  4. Macroeconomic Implications of Changes in Social Security Rules

    Directory of Open Access Journals (Sweden)

    Bilal Bagis

    2017-02-01

    Full Text Available The Turkish social insurance system has been feverishly debated for years, particularly through its burden on the economy. The most recent reform is an attempt to neutralize the deterioration within the social security system and its effects on the economy. After the recent reform, ‘the way that retirement benefits are calculated’ is changed unfavorably for workers and the minimum age for retirement is increased. In particular, for an agent with 25 years of social security tax payments, the replacement rate is down from 65 percent to 50 percent. On the other hand, retirement age is up from 60 to 65. The aim of this paper is to investigate the macroeconomic effects of these changes using an OLG model. The author’s findings indicate that labor supply, output and capital stock increase when changes above are applied to the benchmark economy calibrated to the Turkish economy data in 2005. A critical change with the current reform is that the marginal benefit of working has become uniform over ages. In a simulation exercise, the marginal retirement benefit in the benchmark economy is changed to be uniform over ages while keeping the size of social security system unchanged. As a result, the benefit of retiring at a later period increases. However, uniform distribution of the marginal benefits itself decreases both the capital stock and output of the economy. Increasing the retirement age, on the other hand, has positive effects on the economy since agents obtain retirement benefits for fewer years and at an older age. Age increase has substantial positive effects on the labor supply, the capital stock, and the output.

  5. Social security reform: an overview

    OpenAIRE

    Robert K. Triest

    1997-01-01

    Recent decades have seen a trend toward longer life expectancy and reduced birth rates across the globe. This is good news -- the pressures created by rapid population growth are being relaxed, and people are more likely to live to old age -- but it creates problems for programs such as Social Security, which are designed to provide for the consumption needs of the elderly. In the United States, the retirement of the baby boom generation will result in a decrease in the number of workers per ...

  6. Pond and Irrigation Model (PIM): a tool for simultaneously evaluating pond water availability and crop irrigation demand

    Science.gov (United States)

    Ying Ouyang; Gary Feng; Theodor D. Leininger; John Read; Johnie N. Jenkins

    2018-01-01

    Agricultural ponds are an important alternative source of water for crop irrigation to conserve surface and ground water resources. In recent years more such ponds have been constructed in Mississippi and around the world. There is currently, however, a lack of a tool to simultaneously estimate crop irrigation demand and pond water availability. In this study, a Pond-...

  7. Distinguishing Between Private Law and Social-Security Law in ...

    African Journals Online (AJOL)

    This article attempts to highlight the potential danger in applying private-law principles to social-security law in deciding whether or not social grants should be deducted from awards for damages. Typically, this issue comes to the fore where a damage-causing event, such as death, sets into motion a system that provides for ...

  8. 24 CFR 5.218 - Penalties for failing to disclose and verify Social Security and Employer Identification Numbers.

    Science.gov (United States)

    2010-04-01

    ... and verify Social Security and Employer Identification Numbers. 5.218 Section 5.218 Housing and Urban... REQUIREMENTS; WAIVERS Disclosure and Verification of Social Security Numbers and Employer Identification Numbers; Procedures for Obtaining Income Information Disclosure and Verification of Social Security...

  9. Social connectedness is associated with food security among peri-urban Peruvian Amazonian communities.

    Science.gov (United States)

    Lee, Gwenyth O; Surkan, Pamela J; Zelner, Jon; Paredes Olórtegui, Maribel; Peñataro Yori, Pablo; Ambikapathi, Ramya; Caulfield, Laura E; Gilman, Robert H; Kosek, Margaret N

    2018-04-01

    Food insecurity is a major global public health issue. Social capital has been identified as central to maintaining food security across a wide range of low- and middle-income country contexts, but few studies have examined this relationship through sociocentric network analysis. We investigated relationships between household- and community-level social connectedness, household food security, and household income; and tested the hypothesis that social connectedness modified the relationship between income and food security. A cross-sectional census with an embedded questionnaire to capture social relationships was conducted among eleven peri-urban communities. Community connectedness was related to study outcomes of food security and per-capita income through regression models. Of 1520 households identified, 1383 were interviewed (91.0%) and 1272 (83.9%) provided complete data. Households in the youngest communities had the most total contacts, and the highest proportion of contacts outside of the community. Household income was also associated with more outside-community contacts (0.05 more contacts per standard deviation increase in income, psecure households reported more contacts nearby (0.24 increase in household food insecurity access scale (HFIAS) for each additional contact, psecurity (-0.92 decrease in HFIAS for each one-unit increase in community mean degree, p=0.008). There was no evidence that social connectedness modified the relationship between income and food security such that lower-income households benefited more from community membership than higher-income households. Although households reported networks that spanned rural villages and urban centers, contacts within the community, with whom food was regularly shared, were most important to maintaining food security. Interventions that build within-community connectedness in peri-urban settings may increase food security.

  10. 2101-M pond closure plan

    International Nuclear Information System (INIS)

    1993-06-01

    This document describes activities for the closure of a surface impoundment (2101-M Pond) at the Hanford Site. The 2101-H Pond was initially constructed in 1953 to serve as a drainage collection area for the 2101-H Building. (Until the Basalt Waste Isolation Project (BWIP) Laboratory was constructed in the 2101-M Building in 1979--1981, the only source contributing discharge to the pond was condensate water from the 2101-H Building heating, ventilation, and air conditioning (HVAC) system. The drains for the BWIP Laboratory rooms were plumbed into a 4-in., cast-iron, low-pressure drain pipe that carries waste water from the HVAC system to the pond. During the active life of the BWIP Laboratory, solutions of dissolved barium in groundwater samples were discharged to the 2101-M Pond via the laboratory drains. As a result of the discharges, a Part A permit application was initially submitted to the Washington State Department of Ecology (Ecology) in August 1986 which designates the 2101-M Pond as a surface impoundment

  11. Construction Strategies of Social Security System for Wan-jiang Urban Belt’s Migrant Workers

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Theoretical debate and practice exploration on social security of migrant workers were introduced.The political direction and security layer on social security for migrant workers in Wan-jiang urban belt were analyzed:the first layer is to implement wage payment guarantee and employment injury insurance;the second layer is to emphasize serious disease insurance and endowment insurance;the third layer is unemployed insurance and social assistance.The primary strategy of building a social security system for migrant workers in Wan-jiang urban belt was put up:wage payment guarantee system that is united in certain regions should be promoted;employment injury insurance system that is undertaken by enterprises should be built;a social health care system for serious diseases should be set up;multi-layers endowment insurance system for migrant workers should be created;vocational training and training in how to start a business should be built as well as the unemployment insurance system;social assistant system based on the basic cost of living allowances should be set up.

  12. U.S. Social Security at 75 years: an international perspective.

    Science.gov (United States)

    Hoskins, Dalmer D

    2010-01-01

    Is the historical development of the Old-Age, Survivors, and Disability Insurance (OASDI) program unique or similar to the development of social security programs in other industrialized countries? The U.S. Social Security program was adopted some 40 to 50 years after those of most Western European nations. The United States thus had the opportunity to choose from a number of models and clearly chose to follow the classic social insurance path of such countries as Austria, France, and Germany, which in 1935 already had considerable experience administering earnings-related, employer/worker-financed old-age pension programs. Although based on the traditional social insurance model, OASDI evolved in certain unique ways, including the rejection over the course of succeeding decades of any reliance on general revenue financing, the importance attached to long-range (75-year) actuarial projections, and the relative generosity of benefits for survivors and dependents.

  13. Par Pond vegetation status 1996

    International Nuclear Information System (INIS)

    Mackey, H.E. Jr.; Riley, R.S.

    1996-12-01

    The water level of Par Pond was lowered approximately 20 feet in mid-1991 in order to protect downstream residents from possible dam failure suggested by subsidence on the downstream slope of the dam and to repair the dam. This lowering exposed both emergent and nonemergent macrophyte beds to drying conditions resulting in extensive losses. A survey of the newly emergent, shoreline aquatic plant communities of Par Pond began in June 1995, three months after the refilling of Par Pond to approximately 200 feet above mean sea level. These surveys continued in July, September, and late October, 1995, and into the early spring and late summer of 1996. Communities similar to the pre-drawdown, Par Pond aquatic plant communities continue to become re-established. Emergent beds of maidencane, lotus, waterlily, watershield, and Pontederia are extensive and well developed. Measures of percent cover, width of beds, and estimates of area of coverage with satellite data indicate regrowth within two years of from 40 to 60% of levels prior to the draw down. Cattail occurrence continued to increase during the summer of 1996, especially in the former warm arm of Par Pond, but large beds common to Par Pond prior to the draw down still have not formed. Lotus has invaded and occupies many of the areas formerly dominated by cattail beds. To track the continued development of macrophytes in Par Pond, future surveys through the summer and early fall of 1997, along with the evaluation of satellite data to map the extent of the macrophyte beds of Par Pond, are planned

  14. 75 FR 64389 - Proposed Recommendation to the Social Security Administration for Occupational Information System...

    Science.gov (United States)

    2010-10-19

    ... SOCIAL SECURITY ADMINISTRATION [Docket No. SSA-2010-0066] Proposed Recommendation to the Social Security Administration for Occupational Information System (OIS) Development Planning; Request for Comment...) to provide independent advice and recommendations on plans and activities to create an occupational...

  15. Psychological factors of the readiness of teachers to ensure social security in the educational environment.

    Directory of Open Access Journals (Sweden)

    Shmeleva E.A.

    2015-03-01

    Full Text Available The negative sociocultural transformations that are taking place in modern society and the resulting psychological transformation of personality and mode of life strongly require searching for ways of providing social safety to the next generation, with teachers being the implementers of this process. Teachers’ professionalism is determined by their willingness to solve personal and socially relevant problems, including the willingness to provide social security for other people, to thwart social risks, and to build constructive interpersonal relationships. The aim of our research was to reveal and to analyze the psychological factors affecting the readiness of teachers to ensure social security in educational environments. The environmental factors of social risk have been theoretically characterized. It has been shown that the essential factor in ensuring students’ social security is providing a safe social environment in educational institutions; such an environment provides the learners and the teachers with sociopsychological security and psychosocial well-being. The empirical part of our study was devoted to identifying negative social phenomena in the schools in the Ivanovo region (with the help of a questionnaire administered to 700 students and to identifying the personally and professionally important qualities of the teachers and the subjective psychological factors of their readiness to ensure social security in the educational environment (through interviewing 300 teachers; the administration of the questionnaires and the interviewing were followed by an assessment of their significance (with the help of a questionnaire administered to 140 teachers. Using factor analysis we identified the relevant indicators and grouped them into six factors of the readiness of teachers to ensure a safe educational environment. Relevant personal and professional qualities of teachers were revealed; these are the subjective factors of the

  16. Pond bank access as an approach for managing toxic cyanobacteria in beef cattle pasture drinking water ponds.

    Science.gov (United States)

    Wilson, Alan E; Chislock, Michael F; Yang, Zhen; Barros, Mário U G; Roberts, John F

    2018-03-25

    Forty-one livestock drinking water ponds in Alabama beef cattle pastures during were surveyed during the late summer to generally understand water quality patterns in these important water resources. Since livestock drinking water ponds are prone to excess nutrients that typically lead to eutrophication, which can promote blooms of toxigenic phytoplankton such as cyanobacteria, we also assessed the threat of exposure to the hepatotoxin, microcystin. Eighty percent of the ponds studied contained measurable microcystin, while three of these ponds had concentrations above human drinking water thresholds set by the US Environmental Protection Agency (i.e., 0.3 μg/L). Water quality patterns in the livestock drinking water ponds contrasted sharply with patterns typically observed for temperate freshwater lakes and reservoirs. Namely, we found several non-linear relationships between phytoplankton abundance (measured as chlorophyll) and nutrients or total suspended solids. Livestock had direct access to all the study ponds. Consequently, the proportion of inorganic suspended solids (e.g., sediment) increased with higher concentrations of total suspended solids, which underlies these patterns. Unimodal relationships were also observed between microcystin and phytoplankton abundance or nutrients. Euglenoids were abundant in the four ponds with chlorophyll concentrations > 250 μg/L (and dominated three of these ponds), which could explain why ponds with high chlorophyll concentrations would have low microcystin concentrations. Based on observations made during sampling events and available water quality data, livestock-mediated bioturbation is causing elevated total suspended solids that lead to reduced phytoplankton abundance and microcystin despite high concentrations of nutrients, such as phosphorus and nitrogen. Thus, livestock could be used to manage algal blooms, including toxic secondary metabolites, in their drinking water ponds by allowing them to walk in the

  17. 20 CFR 404.1402 - When are railroad industry services by a non-vested worker covered under Social Security?

    Science.gov (United States)

    2010-04-01

    ...-vested worker covered under Social Security? 404.1402 Section 404.1402 Employees' Benefits SOCIAL... When are railroad industry services by a non-vested worker covered under Social Security? If you are a non-vested worker, we (the Social Security Administration) will consider your services in the railroad...

  18. THE EVOLUTION AND FUTURE OF SOCIAL SECURITY IN AFRICA: AN ACTUARIAL PERSPECTIVE

    Directory of Open Access Journals (Sweden)

    Fatima Badat

    2015-09-01

    Full Text Available Social Security in most African countries has evolved significantly in terms of perspectives, motives, governance as well as innovation of benefits and administration. African countries are slowly, one by one, beginning to reassess the role of social security in correcting several social ills. Empowerment programs and grants are increasingly being provided via social security to women and the youth. From the roots of social security, even very low income countries, some of which have recently experienced several years of civil war and extreme economic hardships, have begun to improve benefit structures and amounts, which include national medical benefits. The attention being provided to social security and how it fits into a nation’s plans to lift itself out of poverty is increasingly involving the actuarial profession from international organisations such as ILO and ISSA as well as consulting actuaries and academics. Assessing and ensuring sustainability of social security benefits requires actuarial valuations to take long-term consequences involving demographic changes into account in the face of providing the benefits in the short term; asset liability modelling to ensure adequate resources are held; ensuring that results are appropriately reported and communicated to key stakeholders; as well as developing long-term strategic plans and dynamic systems surrounding all of these issues. In this paper, the role of actuaries is brought to the centre of the increasingly changing face and evolving culture of social security in taking Africa closer to poverty alleviation. La Seguridad Social en la mayoría de los países africanos ha evolucionado significativamente en cuanto a perspectivas, motivos, gobernanza, así como en innovación en las prestaciones y la adminsitración. Los países africanos están comenzando a reevaluar el papel de la Seguridad Social en la eliminación de determinados problemas sociales. Los programas de acción y los

  19. Biogeochemical ecology of aquaculture ponds

    International Nuclear Information System (INIS)

    Weisburd, R.S.J.

    1988-01-01

    Two methods to determine rates of organic matter production and consumption were applied in shrimp aquaculture ponds. Several questions were posed: can net rates of organic matter production and consumption be determined accurately through application of dissolved inorganic carbon (DIC) mass balance in a pond with high advective through-put? Are organically loaded aquaculture ponds autotrophic? How do rates of organic production vary temporally? Are there diurnal changes in respiration rates? Four marine ponds in Hawaii have been evaluated for a 53 day period through the use of geochemical mass balances. All fluxes of DIC into and out of the ponds were considered. DIC was calculated from hourly pH measurements and weekly alkalinity measurements. Average uptake of DIC from the pond water, equivalent to net community production, revealed net autotrophy in all cases. Hourly and longer period variations in organic matter production rates were examined. The daily cycle dominated the variation in rates of net community production. Maximal rates of net community production were maintained for four to six hours starting in mid-morning. Respiration rates decreased rapidly during the night in two of the ponds and remained essentially constant in the others. A similar pattern of decreasing respiration at night was seen in freshwater shrimp ponds which were studied with incubations. A new method involving isotope dilution of 14 C-labeled DIC was used to measure respiration rates in light and dark bottles. This method is an inexpensive and convenient procedure which should also be useful in other environments. The incubations demonstrated that plankton respiration rates peak at or soon after solar noon and vary over the course of the day by about a factor of two

  20. Elements of Social Security in 6 European Countries

    DEFF Research Database (Denmark)

    Hansen, Hans

    Elements of Social Security in 6 European Countries contains an overview of important benefit schemes in Denmark, Sweden, Finland, Germany, Great Britain and the Nether-lands. The schemes are categorized according to common sets of criteria and compared. Stylized cases illustrate the impact...

  1. Breach of Personal Security through Applicative use of Online Social Networks

    Directory of Open Access Journals (Sweden)

    Bojan Nikolovski

    2013-11-01

    Full Text Available Throughout this article there is an attempt to indicate the threats of potential to breach of personal security through applicative use of internet as well as applicative use of online social networks. In addition to many other ways of privacy protection applicative users of social network’s sites must take into considerations the risk of distributing private data. Through a series of actions and settings users can customize the security settings with the ultimate goal of reducing the risk of attack on their privacy.

  2. Microbiology of solar salt ponds

    Science.gov (United States)

    Javor, B.

    1985-01-01

    Solar salt ponds are shallow ponds of brines that range in salinity from that of normal seawater (3.4 percent) through NaCl saturation. Some salterns evaporate brines to the potash stage of concentration (bitterns). All the brines (except the bitterns, which are devoid of life) harbor high concentrations of microorganisms. The high concentrations of microorganisms and their adaptation to life in the salt pond are discussed.

  3. Return to work after renal transplantation: a study of the Brazilian Public Social Security System.

    Science.gov (United States)

    Messias, Alexandre Augusto; Reichelt, Angela J; Dos Santos, Edson F; Albuquerque, Galton C; Kramer, José S P; Hirakata, Vania N; Garcia, Valter D

    2014-12-15

    Return to work is an objective parameter used worldwide to evaluate the success of organ transplantation and is especially feasible after renal transplantation. This study sought to describe the frequency of return to work after renal transplantation and related characteristics. Retrospective cohort of 511 isolated kidney transplant recipients was recruited from a Brazilian referral center from January 2005 to December 2009; all were matched to the public social security database to determine inclusion and benefit awards, as well as the rate of resumption of contributions to the public social security system, a surrogate marker of work rehabilitation. Characteristics associated with work return were analyzed. No social security records were found for 28 subjects. The remaining 483 subjects had a mean age of 45±13 years; 62% were male; 401 (83%) received some public social security benefit; 298 were paying dues and could, therefore, receive temporary or permanent disability benefits. Of these, 78 subjects made social security payments after transplantation, resulting in a work return rate of 26% (95% confidence interval, 21-32). Younger age, living donor graft, and chronic glomerulonephritis were significantly associated with return to work. In Brazil, most renal transplant recipients are on social security benefits, but only a small proportion return to work after surgery. Clinical characteristics may help define work resumption trends.

  4. Characterizing bacterial communities in tilapia pond surface sediment and their responses to pond differences and temporal variations.

    Science.gov (United States)

    Fan, Limin; Barry, Kamira; Hu, Gengdong; Meng, Shunlong; Song, Chao; Qiu, Liping; Zheng, Yao; Wu, Wei; Qu, Jianhong; Chen, Jiazhang; Xu, Pao

    2017-01-01

    Bacterial community compositions in the surface sediment of tilapia ponds and their responses to pond characteristics or seasonal variations were investigated. For that, three ponds with different stocking densities were selected to collect the samples. And the method of Illumina high-throughput sequencing was used to amplify the bacterial 16S rRNA genes. A total of 662, 876 valid reads and 5649 operational taxonomic units were obtained. Further analysis showed that the dominant phyla in all three ponds were Proteobacteria, Bacteroidetes, Chloroflexi, and Acidobacteria. The phyla Planctomycetes, Firmicutes, Chlorobi, and Spirochaetae were also relatively abundant. Among the eight phyla, the abundances of only Proteobacteria, Bacteroidetes, Firmicutes, and Spirochaetae were affected by seasonal variations, while seven of these (with the exception of Acidobacteria) were affected by pond differences. A comprehensive analysis of the richness and diversity of the bacterial 16S rRNA gene, and of the similarity in bacterial community composition in sediment also showed that the communities in tilapia pond sediment were shaped more by pond differences than by seasonal variations. Linear discriminant analysis further indicated that the influences of pond characteristics on sediment bacterial communities might be related to feed coefficients and stocking densities of genetically improved farmed tilapia (GIFT).

  5. 42 CFR 401.130 - Materials available at social security district offices and branch offices.

    Science.gov (United States)

    2010-10-01

    ... (HIM-10). (13) Home Health Agency Manual (HIM-11). (14) Outpatient Physical Therapy Provider Manual... social security district offices and branch offices: (1) Claims Manual of the Social Security Administration. (2) Department Staff Manual on Organization, Department of Health and Human Services, Part F, CMS...

  6. Does Social Security Affect Retirement and Labor Supply? Using the Chilean Experience as an Experiment

    OpenAIRE

    Rodrigo Cerda

    2002-01-01

    The paper explores the effects of the social security system over retirement and labor supply decision of individuals aged 55 to 65 in Chile. We use the 1998 CASEN survey elaborated by the Chilean government. Due to regulations established by the current social security law, two social security systems coexist on 1998: the .Pay-as-you-go. and the individual account system. This property of the dataset, allows us to disentangle the effects of those two systems over retirement and labor supply....

  7. National Pending of Social Security Hearing Requests by Format

    Data.gov (United States)

    Social Security Administration — Report refers to the National total of cases pending at the hearing level and the number and percentages of those cases that were in either electronic format (EF) or...

  8. A real social position of ethnic minorities in the area of medical care and social security

    Directory of Open Access Journals (Sweden)

    Nagradić Slobodan

    2016-01-01

    Full Text Available This work contains research of the position of ethnic minorities in two important existential areas such are medical care and social security. The author puts under a critical analyze not only semantics of the ideas and phrases of medical care and, especially, social security themselves, believing that their inaccurate meaning and usage hide more than they expose facts and relations according to which it is possible to detect and describe a real position of ethnic minorities in the post-dayton society of Bosnia and Herzegovina, but also the experience of implementation of rules from those areas, which should enable them to use the rights defined. Of course, his attention is specially focused on members of Roma ethnic minority, for which he claims to be the most sensible, and that their members, unlike members of all the other ethnic minorities in BiH, are most, or more precisely, only discriminated a-pro-pos the protection of their rights in the areas of medical care and social security, which is not only a responsibility of institutions that provide services in the mentioned areas of life. By using a method of analysis of contents of legal (constitutions, laws, conventions, charters, resolutions, sublegal acts and political (reports, evaluations, analyses, strategies, action plans etc. documents, and by analyzing real life features, processes, relations and events in contemporary BiH society, the author came to sociologically relevant insights of real social and legally-political positions of ethnic minorities in BiH, a state and courses in the areas of medical care and social security and clearly formulated a conclusion that members of ethnic minority determined collectivities, apart from Roma, are in no way ancillary positioned compared to members of constitutional people of post-dayton BiH.

  9. 77 FR 51842 - Social Security Acquiescence Ruling (AR) 12-X(8); Petersen v. Astrue, 633 F.3d 633 (8th Cir. 2011...

    Science.gov (United States)

    2012-08-27

    ..., 1-800-772-1213 or TTY 1-800-325-0778, or visit our Internet site, Social Security Online, at http... SOCIAL SECURITY ADMINISTRATION [Docket No. SSA-2012-0046] Social Security Acquiescence Ruling (AR... Social Security Act AGENCY: Social Security Administration. ACTION: Notice of Social Security...

  10. Social Security and Saving: A Time-Series Econometrics Pedagogical Example (With "R" Code)

    Science.gov (United States)

    Wassell, Charles S., Jr.

    2018-01-01

    In 1974, and then again in 1996, Martin Feldstein published studies of the impact of the Social Security system on private saving in the U.S. economy. He found that Social Security depressed personal saving by a substantial amount--up to 50 percent. The author uses the Feldstein data and empirical models in this article to illustrate the steps in…

  11. Beaver ponds increase methylmercury concentrations in Canadian shield streams along vegetation and pond-age gradients.

    Science.gov (United States)

    Roy, Virginie; Amyot, Marc; Carignan, Richard

    2009-08-01

    Beaver impoundments flood forested areas and may be important production sites for methylmercury (MeHg) because of the resulting enhanced microbial activity and oxygen depletion. The influence of 17 beaver impoundments on streamwater chemistry (total mercury (THg), MeHg, nutrients, cations, and anions)] was investigated by sampling sites located along vegetation and pond-age gradients in southwestern Quebec (Canada). Recently inundated beaver ponds (beaver ponds as suggested by depletions of dissolved oxygen, sulfate and nitrite-nitrate concentrations, and increases in nutrients (e.g., dissolved organic carbon, total phosphorus, and total nitrogen) in outlets compared to inlets. Acidic waters at coniferous sites may have stimulated more MeHg production than in mixed woodland regions. Lower methylation efficiencies in older ponds (> 20 years old) may be due to the degradation of less labile organic matter as ponds age. Beavers actively alter watersheds by building impoundments, and our findings indicate that this landscape disturbance may be a significant source of MeHg to downstream water bodies.

  12. Effects of macroeconomic trends on social security spending due to sickness and disability.

    Science.gov (United States)

    Khan, Jahangir; Gerdtham, Ulf-G; Jansson, Bjarne

    2004-11-01

    We analyzed the relationship between macroeconomic conditions, measured as unemployment rate and social security spending, from 4 social security schemes and total spending due to sickness and disability. We obtained aggregated panel data from 13 Organization for Economic Cooperation and Development member countries for 1980-1996. We used regression analysis and fixed effect models to examine spending on sickness benefits, disability pensions, occupational-injury benefits, survivor's pensions, and total spending. A decline in unemployment increased sickness benefits spending and reduced disability pension spending. These effects reversed direction after 4 years of unemployment. Inclusion of mortality rate as an additional variable in the analysis did not affect the findings. Macroeconomic conditions influence some reimbursements from social security schemes but not total spending.

  13. 38 CFR 3.201 - Exchange of evidence; Social Security and Department of Veterans Affairs.

    Science.gov (United States)

    2010-07-01

    ... Compensation Evidence Requirements § 3.201 Exchange of evidence; Social Security and Department of Veterans... 38 Pensions, Bonuses, and Veterans' Relief 1 2010-07-01 2010-07-01 false Exchange of evidence; Social Security and Department of Veterans Affairs. 3.201 Section 3.201 Pensions, Bonuses, and Veterans...

  14. Frozen ponds

    DEFF Research Database (Denmark)

    Langer, M; Westermann, S.; Anthony, K. Walter

    2015-01-01

    to a warming climate are complex and only poorly understood. Small waterbodies have been attracting an increasing amount of attention since recent studies demonstrated that ponds can make a significant contribution to the CO2 and CH4emissions of tundra ecosystems. Waterbodies also have a marked effect...... on the thermal state of the surrounding permafrost; during the freezing period they prolong the period of time during which thawed soil material is available for microbial decomposition.  This study presents net CH4 production rates during the freezing period from ponds within a typical lowland tundra landscape...

  15. Secure and Privacy-Preserving Data Sharing and Collaboration in Mobile Healthcare Social Networks of Smart Cities

    Directory of Open Access Journals (Sweden)

    Qinlong Huang

    2017-01-01

    Full Text Available Mobile healthcare social networks (MHSN integrated with connected medical sensors and cloud-based health data storage provide preventive and curative health services in smart cities. The fusion of social data together with real-time health data facilitates a novel paradigm of healthcare big data analysis. However, the collaboration of healthcare and social network service providers may pose a series of security and privacy issues. In this paper, we propose a secure health and social data sharing and collaboration scheme in MHSN. To preserve the data privacy, we realize secure and fine-grained health data and social data sharing with attribute-based encryption and identity-based broadcast encryption techniques, respectively, which allows patients to share their private personal data securely. In order to achieve enhanced data collaboration, we allow the healthcare analyzers to access both the reencrypted health data and the social data with authorization from the data owner based on proxy reencryption. Specifically, most of the health data encryption and decryption computations are outsourced from resource-constrained mobile devices to a health cloud, and the decryption of the healthcare analyzer incurs a low cost. The security and performance analysis results show the security and efficiency of our scheme.

  16. Social security status and mortality in Belgian and Spanish male workers.

    Science.gov (United States)

    Duran, Xavier; Vanroelen, Christophe; Deboosere, Patrick; Benavides, Fernando G

    2016-01-01

    To assess differences in mortality rates between social security statuses in two independent samples of Belgian and Spanish male workers. Study of two retrospective cohorts (Belgium, n=23,607; Spain, n=44,385) of 50-60 year old male employees with 4 years of follow-up. Mortality rate ratios (MRR) were estimated using Poisson regression models. Mortality for subjects with permanent disability was higher than for the employed, for both Belgium [MRR=4.56 (95% CI: 2.88-7.21)] and Spain [MRR=7.15 (95% CI: 5.37-9.51)]. For the unemployed/early retirees, mortality was higher in Spain [MRR=1.64 (95% CI: 1.24-2.17)] than in Belgium [MRR=0.88 (95% CI: 0.46-1.71)]. MRR differences between Belgium and Spain for unemployed workers could be partly explained because of differences between the two social security systems. Future studies should further explore mortality differences between countries with different social security systems. Copyright © 2016 SESPAS. Published by Elsevier Espana. All rights reserved.

  17. 22 CFR 308.7 - Use of social security account number in records systems. [Reserved

    Science.gov (United States)

    2010-04-01

    ... 22 Foreign Relations 2 2010-04-01 2010-04-01 true Use of social security account number in records systems. [Reserved] 308.7 Section 308.7 Foreign Relations PEACE CORPS IMPLEMENTATION OF THE PRIVACY ACT OF 1974 § 308.7 Use of social security account number in records systems. [Reserved] ...

  18. Aquatic studies of Gable Mountain Pond

    International Nuclear Information System (INIS)

    Cushing, C.E.; Watson, D.G.

    1974-12-01

    Studies of the biotic and abiotic components of the Gable Mountain Pond (HAPO cooling water disposal pond) ecosystem were undertaken to determine if there was a potential problem for off-site transfer of radioactivity to man originating with the aquatic food web. Most of the 137 Cs in the pond is associated with the sediments which are probably the main source of 137 Cs for uptake by the biota. Generally, highest concentrations of 137 Cs and other radioisotopes were found in the upper two inches of sediments in the northwest end of the pond and in the deeper areas along the long-axis of the pond. Native goldfish had maximum and average 137 Cs concentrations of about 340 and 170 pCi/g dry wt, respectively. Algae, macrophytes, and detritus comprised the main food items of the goldfish, and the 137 Cs levels in the plants were usually higher than the 137 Cs concentration in the fish. The 137 Cs concentrations of wild experimental ducks restricted to Gable Mountain Pond were approximately the same as resident coots, but significantly higher than transient wild ducks. Neither the goldfish nor the waterfowl inhabiting the pond attained concentrations of 137 Cs exceeding acceptable limits. Sediment, however, could be a source of high concentrations of radioactivity or radioactive contamination concern if the concentration of radiocontaminants increased and/or the pond dries up, and the contaminated sediments become windborne. (U.S.)

  19. Social security, dynamic efficiency and self-control problems

    NARCIS (Netherlands)

    Bucciol, A.

    2008-01-01

    We develop an OLG model with uncertainty on labor income and death age to study the welfare implications of unfunded Social Security programs in an economy where agents are affected by temptation à la Gul and Pesendorfer (2001, Econometrica 69, 1403). Tempted agents give additional value to the

  20. 48 CFR 1552.224-70 - Social security numbers of consultants and certain sole proprietors and Privacy Act statement.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 6 2010-10-01 2010-10-01 true Social security numbers of... CONTRACT CLAUSES Texts of Provisions and Clauses 1552.224-70 Social security numbers of consultants and... provision in all solicitations. Social Security Numbers of Consultants and Certain Sole Proprietors and...

  1. 20 CFR 220.37 - When a child's disability determination is governed by the regulations of the Social Security...

    Science.gov (United States)

    2010-04-01

    ...) Inclusion as a disabled child in the employee's annuity rate under the social security overall minimum. (2... governed by the regulations of the Social Security Administration. 220.37 Section 220.37 Employees... Disability Determinations Governed by the Regulations of the Social Security Administration § 220.37 When a...

  2. Family medicine and practice in the Mexican Social Security Institute

    Directory of Open Access Journals (Sweden)

    Donovan Casas Patiño

    2014-06-01

    Full Text Available The central ideas of this research paper are related to the practice of family medicine as a specialty. It focuses in its origins, problems, unique characteristics, limitations, scope, management, and processes within the context of primary care of the Mexican Social Security System. This approach was based on a qualitative, hermeneutical study closely related to the Structural Functionalism Theory. Within this framework, medical practice is seen as an equation: Meaning = action + function/structure. This offers an approach to the understanding of reality through surveys and observations in five categories: identity, activity, purpose, values/norms, and power/relationship. The practice of family medicine is defined as a medical act in the Mexican Social Security Institute. This act is limited to a brief encounter and a prescription, which makes it a short, fleeting, medicalized interaction. The result is a negative social imaginary of the physician, the patient and the whole of society. Thus, individuals and society host a negative social imaginary bestowed on doctors and users of the health system.

  3. Stochastic Actuarial Modelling of a Defined-Benefit Social Security Pension Scheme: An Analytical Approach

    OpenAIRE

    Iyer, Subramaniam

    2017-01-01

    Among the systems in place in different countries for the protection of the population against the long-term contingencies of old-age (or retirement), disability and death (or survivorship), defined-benefit social security pension schemes, i.e. social insurance pension schemes, by far predominate, despite the recent trend towards defined-contribution arrangements in social security reforms. Actuarial valuations of these schemes, unlike other branches of insurance, continue to be carried out a...

  4. Social Protection for Enhanced Food Security in Sub-Saharan Africa

    OpenAIRE

    Stephen Devereux

    2012-01-01

    This paper identifies several positive synergies between social protection programmes and food security outcomes. One function of social protection is to manage and reduce vulnerability, and several instruments are reviewed – weather-indexed insurance, public works programmes, emergency food aid and buffer stock management – which all contribute to stabilising income and access to food across good and bad years, or between the harvest and the hungry season. Other social protection instruments...

  5. Dreams that do not come true: Re-addressing social security to expand old-age social protection : The case of informal workers in El Salvador

    NARCIS (Netherlands)

    N.E.A. Joya (Nancy)

    2007-01-01

    textabstractThis paper focuses on old-age income security, with the objective to explore obstacles and opportunities to expand social protection for informal workers in El Salvador. It first introduces the main concepts and debates on social security, social protection, coverage and informality, to

  6. Social Security and Pensions in Lebanon: A Non-Contributory ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    UPGRADING LEBANON’ S ECONOMIC ANALYTICAL CAPACITY PROJECT 105541

    analysis of the need for pension reform and a public financial perspective on pension reform, and a proposal for ... Elderly people, who are seventy and above today, will not benefit from ..... component of existing Lebanese social security cost.

  7. SOSYAL GÜVENLİK SİSTEMİ AÇISINDAN GÜVENCELİ ESNEKLİK (FLEXICURITY IN TERMS OF SOCIAL SECURITY SYSTEM

    Directory of Open Access Journals (Sweden)

    Duygu Demirsat KÖLEOĞLU

    2012-01-01

    Full Text Available Flexicurity is a fact that synchronically interests and impresses employee and employer. Flexicurity fact becomes concrete with some genuine provisions. This provision is appropriate law framework, active labour market policies, lifelong learning and social security system. In this study, it is aimed to analyze flexicurity fact in the context of social security systems. In this reasons, income security and combination security are explicated through social security systems.

  8. Rapid surface-water volume estimations in beaver ponds

    Science.gov (United States)

    Karran, Daniel J.; Westbrook, Cherie J.; Wheaton, Joseph M.; Johnston, Carol A.; Bedard-Haughn, Angela

    2017-02-01

    Beaver ponds are surface-water features that are transient through space and time. Such qualities complicate the inclusion of beaver ponds in local and regional water balances, and in hydrological models, as reliable estimates of surface-water storage are difficult to acquire without time- and labour-intensive topographic surveys. A simpler approach to overcome this challenge is needed, given the abundance of the beaver ponds in North America, Eurasia, and southern South America. We investigated whether simple morphometric characteristics derived from readily available aerial imagery or quickly measured field attributes of beaver ponds can be used to approximate surface-water storage among the range of environmental settings in which beaver ponds are found. Studied were a total of 40 beaver ponds from four different sites in North and South America. The simplified volume-area-depth (V-A-h) approach, originally developed for prairie potholes, was tested. With only two measurements of pond depth and corresponding surface area, this method estimated surface-water storage in beaver ponds within 5 % on average. Beaver pond morphometry was characterized by a median basin coefficient of 0.91, and dam length and pond surface area were strongly correlated with beaver pond storage capacity, regardless of geographic setting. These attributes provide a means for coarsely estimating surface-water storage capacity in beaver ponds. Overall, this research demonstrates that reliable estimates of surface-water storage in beaver ponds only requires simple measurements derived from aerial imagery and/or brief visits to the field. Future research efforts should be directed at incorporating these simple methods into both broader beaver-related tools and catchment-scale hydrological models.

  9. Thermal performance experiments on ultimate heat sinks, spray ponds, and cooling ponds

    International Nuclear Information System (INIS)

    Hadlock, R.K.

    1976-12-01

    A program of measurement on a Battelle-Northwest (BNW) spray pond has been completed to prove an integrated instrumentation system for application in future field experiments. The measurement programs in the field will produce data of relevance to the design and understanding of performance for ultimate heat sinks as components of emergency core cooling systems. In the absence of active emergency cooling systems, the data will be obtained on analog systems--prime candidates among these are the naturally-occurring hot ponds at Yellowstone National Park and man-made hot cooling ponds at Savannah River National Laboratory as well as spray ponds at various industrial facilities. The proof experiment has provided data that not only illustrate the effectiveness of the instrumentation system but also display interesting site-specific heat transfer processes. The data to be obtained in the field will also be site specific but must be of generic applicability in modeling for design and performance purposes. The integrated instrumentation system will evolve, through modest modifications and substantial supplementation, to provide the requisite data for the more demanding situation of work in and about hot water

  10. 78 FR 9987 - Social Security Ruling, SSR 13-1p; Titles II and XVI: Agency Processes for Addressing Allegations...

    Science.gov (United States)

    2013-02-12

    ... SOCIAL SECURITY ADMINISTRATION [Docket No. SSA-2012-0071] Social Security Ruling, SSR 13-1p; Titles II and XVI: Agency Processes for Addressing Allegations of Unfairness, Prejudice, Partiality, Bias, Misconduct, or Discrimination by Administrative Law Judges (ALJs); Correction AGENCY: Social Security...

  11. 78 FR 22361 - Social Security Ruling, SSR 13-1p; Titles II and XVI: Agency Processes for Addressing Allegations...

    Science.gov (United States)

    2013-04-15

    ... SOCIAL SECURITY ADMINISTRATION [Docket No. SSA-2012-0071] Social Security Ruling, SSR 13-1p; Titles II and XVI: Agency Processes for Addressing Allegations of Unfairness, Prejudice, Partiality, Bias, Misconduct, or Discrimination by Administrative Law Judges (ALJs); Correction AGENCY: Social Security...

  12. 75 FR 5166 - Privacy Act of 1974, as Amended; Computer Matching Program (Social Security Administration...

    Science.gov (United States)

    2010-02-01

    ... SOCIAL SECURITY ADMINISTRATION [Docket No. SSA 2009-0043] Privacy Act of 1974, as Amended; Computer Matching Program (Social Security Administration/Railroad Retirement Board (SSA/RRB))-- Match... INFORMATION: A. General The Computer Matching and Privacy Protection Act of 1988 Public Law (Pub. L.) 100-503...

  13. The 2012 Recommendation concerning national floors of social protection (No. 202) : The human rights approach to social security in ILO wrapping paper

    NARCIS (Netherlands)

    Vonk, Gijsbert

    2013-01-01

    The International Labour Organisation (ILO) has a long tradition of developing minimum social security standards. However, the value of these instruments is increasingly criticised. A central point in this criticism is that the standards are not based upon the notion of a right to social security

  14. 100-D Ponds closure plan. Revision 1

    International Nuclear Information System (INIS)

    Petersen, S.W.

    1997-09-01

    The 100-D Ponds is a Treatment, Storage, and Disposal (TSD) unit on the Hanford Facility that received both dangerous and nonregulated waste. This Closure Plan (Rev. 1) for the 100-D Ponds TSD unit consists of a RCRA Part A Dangerous Waste Permit Application (Rev. 3), a RCRA Closure Plan, and supporting information contained in the appendices to the plan. The closure plan consists of eight chapters containing facility description, process information, waste characteristics, and groundwater monitoring data. There are also chapters containing the closure strategy and performance standards. The strategy for the closure of the 100-D Ponds TSD unit is clean closure. Appendices A and B of the closure plan demonstrate that soil and groundwater beneath 100-D Ponds are below cleanup limits. All dangerous wastes or dangerous waste constituents or residues associated with the operation of the ponds have been removed, therefore, human health and the environment are protected. Discharges to the 100-D Ponds, which are located in the 100-DR-1 operable unit, were discontinued in June 1994. Contaminated sediment was removed from the ponds in August 1996. Subsequent sampling and analysis demonstrated that there is no contamination remaining in the ponds, therefore, this closure plan is a demonstration of clean closure

  15. Policy Needs for Social Security in the Process of Citizenization of the Peri-urban Farmers:A Case Study of Hefei City

    Institute of Scientific and Technical Information of China (English)

    TAN Jiang-lin; CHEN Rui; NI Wen-cong

    2012-01-01

    We conduct a survey of transformational towns and villages in High-tech Development District, Yaohai District and Shushan District, Hefei City. Using data, we analyze the "sideline effect" and inherent contradiction of transformational cities, research the policy needs for social security and its trend in the citizenization process of the peri-urban farmers. On this basis, we construct the social security policy system that can adapt to the accelerated process of urbanization. Finally, we put forth the following recommendations for the social security policy in the citizenization process of the peri-urban farmers: distinguishing different groups’ policy needs for social security; attaching importance to people’s dynamic policy needs for social security in urbanization; focusing on the adaptability of social security policy transformation in urbanization; attaching importance to the social psychosocial environment of social security policy transformation in urbanization; achieving the trinity of non-farm conversion, urbanization and citizenization in the process of urbanization; strengthening the government’s dominant position in the building of social security policy system.

  16. Social Security privatization: balancing efficiency and fairness

    OpenAIRE

    C. Alan Garner

    1997-01-01

    This article examines these fundamental issues of economic efficiency and fairness that should be weighed when considering Social Security privatization. The first section summarizes the challenges to the current system and outlines various options for reform. The second section explains how privatization could improve economic efficiency, and briefly considers the difficult issue of the transition costs in moving from the current system to full privatization. The third section discusses impo...

  17. Information Technology Management: Social Security Administration Practices Can Be Improved

    National Research Council Canada - National Science Library

    Shaw, Clay

    2001-01-01

    To improve SSAs IT management practices, we recommend that the Acting Commissioner of Social Security direct the Chief Information Officer and the Deputy Commissioner for Systems to complete the following actions...

  18. The Influence of Globalization on the Change and Convergence of Social Security Transfer: An Empirical Analysis for OECD Counties

    Directory of Open Access Journals (Sweden)

    Jinyoung Hwang

    2007-12-01

    Full Text Available Using a cross-section of OECD countries, this paper examines the relationship between globalization and the change and convergence of social security transfer. Globalization has arguably had a profound impact on the use of social protection in states, since it is normally accompanied with increases in income inequality, polarization, and unemployment. In addition, globalization may lead to socio- economic policy harmonization across countries. The empirical results show that there exists a significant and positive relationship between social security transfer in GDP and the globalization index based on political, economic, and social integrations. Also, we found the convergence phenomenon of social security transfer in OECD countries, applying the traditional methodology of convergence and convergence. Therefore, there is evidence in OECD countries that globalization indirectly affects the convergence of social security transfer in addition to direct relation to social security transfer in GDP.

  19. Par Pond vegetation status Summer 1995 -- Summary

    International Nuclear Information System (INIS)

    Mackey, H.E. Jr.; Riley, R.S.

    1996-01-01

    The water level of Par Pond was lowered approximately 20 feet in mid-1991 in order to protect downstream residents from possible dam failure suggested by subsidence on the downstream slope of the dam and to repair the dam. This lowering exposed both emergent and nonemergent macrophyte beds to drying conditions resulting in extensive losses. A survey of the newly emergent, shoreline aquatic plant communities of Par Pond began in June 1995, three months after the refilling of Par Pond to approximately 200 feet above mean sea level. These surveys continued in July, September, and late October, 1995. Communities similar to the pre-drawdown, Par Pond aquatic plant communities are becoming re-established. Emergent beds of maidencane, lotus, waterlily, and watershield are extensive and well developed. Cattail occurrence continued to increase during the summer, but large beds common to Par Pond prior to the drawdown have not formed. Estimates from SPOT HRV, remote sensing satellite data indicated that as much as 120 hectares of emergent wetlands vegetation may have been present along the Par Pond shoreline by early October, 1995. To track the continued development of macrophytes in Par Pond, future surveys throughout 1996 and 1997, along with the continued evaluation of satellite data to map the areal extent of the macrophyte beds of Par Pond, are planned

  20. Harmonization of social security law of Serbia with the law of European Union

    Directory of Open Access Journals (Sweden)

    Golubović Velizar

    2011-01-01

    Full Text Available In this work, the author shortly exposes Communitarian social security law and remained tasks of the harmonization of Serbian legislation in this field. Recently some amendments of legislation were made in order to strengthen principles of gender equality and prevent discrimination, to regulate employment of persons with disability, as well as to install supervision in Institutions for occupational retirement. Regarding the compulsory social insurance in Serbia it may be concluded that there exists a high degree of compliance with the EU legislation, with an exception of privileged mode of entitlement for old age and disability pensions for women and partial disability caused by work injury where it is necessary to conclude agreements on social security with 10 EU states members. On the other side, occupational retirement provision is partially incompatible with Communitarian social security law, i.e. with Directive 2003/41/EC in the field of technical provision, as well as with Directive 113/2004/EU regarding the obligation of equation of the life expectancy for both sexes.

  1. Technical manual for calculating cooling pond performance

    International Nuclear Information System (INIS)

    Krstulovich, S.F.

    1988-01-01

    This manual is produced in response to a growing number of requests for a technical aid to explain methods for simulating cooling pond performance. As such, it is a compilation of reports, charts and graphs developed through the years for use in analyzing situations. Section II contains a report summarizing the factors affecting cooling pond performance and lists statistical parameters used in developing performance simulations. Section III contains the graphs of simulated cooling pond performance on an hourly basis for various combinations of criteria (wind, solar, depth, air temperature and humidity) developed from the report in Section II. Section IV contains correspondence describing how to develop further data from the graphs in Section III, as well as mathematical models for the system of performance calculation. Section V contains the formulas used to simulate cooling pond performances in a cascade arrangement, such as the Fermilab Main Ring ponds. Section VI contains the calculations currently in use to evaluate the Main Ring pond performance based on current flows and Watts loadings. Section VII contains the overall site drawing of the Main Ring cooling ponds with thermal analysis and physical data

  2. 78 FR 37244 - Submission for Review: We Need Important Information About Your Eligibility for Social Security...

    Science.gov (United States)

    2013-06-20

    ... Important Information About Your Eligibility for Social Security Disability Benefits, RI 98-7. As required... Personnel Management. Title: We Need Important Information About Your Eligibility for Social Security... OFFICE OF PERSONNEL MANAGEMENT Submission for Review: We Need Important Information About Your...

  3. Security and privacy preserving in social networks

    CERN Document Server

    Chbeir, Richard

    2013-01-01

    This volume aims at assessing the current approaches and technologies, as well as to outline the major challenges and future perspectives related to the security and privacy protection of social networks. It provides the reader with an overview of the state-of-the art techniques, studies, and approaches as well as outlining future directions in this field. A wide range of interdisciplinary contributions from various research groups ensures for a balanced and complete perspective.

  4. Wintertime Emissions from Produced Water Ponds

    Science.gov (United States)

    Evans, J.; Lyman, S.; Mansfield, M. L.

    2013-12-01

    Every year oil and gas drilling in the U.S. generates billions of barrels of produced water (water brought to the surface during oil or gas production). Efficiently disposing of produced water presents a constant financial challenge for producers. The most noticeable disposal method in eastern Utah's Uintah Basin is the use of evaporation ponds. There are 427 acres of produced water ponds in the Uintah Basin, and these were used to evaporate more than 5 million barrels of produced water in 2012, 6% of all produced water in the Basin. Ozone concentrations exceeding EPA standards have been observed in the Uintah Basin during winter inversion conditions, with daily maximum 8 hour average concentrations at some research sites exceeding 150 parts per billion. Produced water contains ozone-forming volatile organic compounds (VOC) which escape into the atmosphere as the water is evaporated, potentially contributing to air quality problems. No peer-reviewed study of VOC emissions from produced water ponds has been reported, and filling this gap is essential for the development of accurate emissions inventories for the Uintah Basin and other air sheds with oil and gas production. Methane, carbon dioxide, and VOC emissions were measured at three separate pond facilities in the Uintah Basin in February and March of 2013 using a dynamic flux chamber. Pond emissions vary with meteorological conditions, so measurements of VOC emissions were collected during winter to obtain data relevant to periods of high ozone production. Much of the pond area at evaporation facilities was frozen during the study period, but areas that actively received water from trucks remained unfrozen. These areas accounted for 99.2% of total emissions but only 9.5% of the total pond area on average. Ice and snow on frozen ponds served as a cap, prohibiting VOC from being emitted into the atmosphere. Emissions of benzene, toluene, and other aromatic VOCs averaged over 150 mg m-2 h-1 from unfrozen pond

  5. Solar pond conception - experimental and theoretical studies

    Energy Technology Data Exchange (ETDEWEB)

    Kurt, Huseyin [Zonguldak Karaelmas Univ., Technical Education Faculty, Karabuk (Turkey); Halici, Fethi [Sakarya Univ., Mechanical Engineering Dept., Adapazari (Turkey); Binark, A. Korhan [Marmara Univ., Technical Education Faculty, Istanbul (Turkey)

    2000-07-01

    A one dimensional transient mathematical model for predicting the thermal performance of the salt gradient solar pond is developed and presented. In this paper, the natural solar ponds and different artificial solar pond systems found in the literature are introduced. Necessary modifications are made on the experimental stand located in Istanbul Technical University, the experimental stand is introduced and natural phenomena produced in the pond by the different solar pond variations under natural conditions are observed. In the theoretical work based on a one dimensional unsteady state heat conduction model with internal heat generation, the energy and mass balance equations for the upper convective zone, the non-convective zone and the lower convective zone, all of which form the solar pond, are written in terms of differential equations. These equations are solved analytically and numerically. The results obtained from the analysis are compared with the experimental results. The temperature and the concentration profiles are separately presented in the figures. (Author)

  6. Implementation of Learning Organization Components in Ardabil Social Security Hospital

    Directory of Open Access Journals (Sweden)

    Azadeh Zirak

    2015-06-01

    Full Text Available This study aimed to investigate the implementation of learning organization characteristics based on Marquardt systematic model in Ardabil Social Security Hospital. The statistical population of this research was 234 male and female employees of Ardabil Social Security Hospital. For data collection, Marquardt questionnaire was used in the present study which its validity and reliability had been confirmed. Statistical analysis of hypotheses based on independent samples t-test showed that learning organization characteristics were used more than average level in some subsystems of Marquardt model and there was a significant difference between current position and excellent position based on learning organization characteristic application. According to the research findings, more attention should be paid to the subsystems of learning organization establishment and balanced development of these subsystems.

  7. 77 FR 43639 - Privacy Act of 1974, as Amended; Computer Matching Program (Social Security Administration (SSA...

    Science.gov (United States)

    2012-07-25

    ... SOCIAL SECURITY ADMINISTRATION [Docket No. SSA 2011-0090] Privacy Act of 1974, as Amended; Computer Matching Program (Social Security Administration (SSA)/Department of Veterans Affairs (VA.... SUPPLEMENTARY INFORMATION: A. General The Computer Matching and Privacy Protection Act of 1988 (Pub. L. 100-503...

  8. 77 FR 54943 - Privacy Act of 1974, as Amended; Computer Matching Program (Social Security Administration (SSA...

    Science.gov (United States)

    2012-09-06

    ... SOCIAL SECURITY ADMINISTRATION [Docket No. SSA 2012-0016] Privacy Act of 1974, as Amended; Computer Matching Program (Social Security Administration (SSA)/Department of Veterans Affairs (VA.... SUPPLEMENTARY INFORMATION: A. General The Computer Matching and Privacy Protection Act of 1988 (Pub. L. 100-503...

  9. 20 CFR 404.469 - Nonpayment of benefits where individual has not furnished or applied for a Social Security number.

    Science.gov (United States)

    2010-04-01

    ... not furnished or applied for a Social Security number. 404.469 Section 404.469 Employees' Benefits... or applied for a Social Security number. No monthly benefits will be paid to an entitled individual... or her Social Security number, or, if the individual has not been assigned a number, he or she makes...

  10. Social climate along the pathway of care in women's secure mental health service: variation with level of security, patient motivation, therapeutic alliance and level of disturbance.

    Science.gov (United States)

    Long, C G; Anagnostakis, K; Fox, E; Silaule, P; Somers, J; West, R; Webster, A

    2011-07-01

    Social climate has been measured in a variety of therapeutic settings, but there is little information about it in secure mental health services, or how it may vary along a gender specific care pathway. To assess social climate in women's secure wards and its variation by level of security and ward type, therapeutic alliance, patient motivation, treatment engagement and disturbed behaviour. Three-quarters (80, 76%) of staff and nearly all (65, 92%) of patients in the two medium-security wards and two low-security wards that comprised the unit completed the Essen Climate Evaluation Schema (EssenCES) and the California Psychotherapy Alliance Scale (CALPAS); patients also completed the Patient Motivation Inventory (PMI). Pre-assessment levels of disturbed behaviour and treatment engagement were recorded. Social climate varied according to ward type and level of security. EssenCES ratings indicative of positive social climate were associated with lower levels of security; such ratings were also associated with lower behavioural disturbance and with higher levels of motivation, treatment engagement and therapeutic alliance. This serial cross-sectional survey indicated that use of the EssenCES alone might be a good practical measure of treatment progress/responsivity. A longitudinal study would be an important next step in establishing the extent to which it would be useful in this regard. Copyright © 2010 John Wiley & Sons, Ltd.

  11. Par Pond phytoplankton in association with refilling of the pond: Final Report for sampling from February 1995 -- September 1996

    International Nuclear Information System (INIS)

    Wilde, E.W.; Johnson, M.A.; Cody, W.C.

    1996-01-01

    This report describes the results of phytoplankton analyses from Par Pond samples collected between February 1995 and September 1996. The principal objective of the study was to determine the effect of refilling of Par Pond following repair of the dam on the phytoplankton community. Algal blooms are often responsible for fish kills and other detrimental effects in ponds and lakes, and it was postulated that decaying vegetation from formerly exposed sediments might trigger algal blooms that could result in fish kills in Par Pond following the refill. Sporadic algal blooms involving blue-green algae were detected, especially during the summer of 1996. However, the data derived from the study demonstrates that overall, the refilling effort caused no significant negative impact to the pond attributable to phytoplankton dynamics

  12. Par Pond phytoplankton in association with refilling of the pond: Final Report for sampling from February 1995 -- September 1996

    Energy Technology Data Exchange (ETDEWEB)

    Wilde, E.W.; Johnson, M.A.; Cody, W.C.

    1996-12-31

    This report describes the results of phytoplankton analyses from Par Pond samples collected between February 1995 and September 1996. The principal objective of the study was to determine the effect of refilling of Par Pond following repair of the dam on the phytoplankton community. Algal blooms are often responsible for fish kills and other detrimental effects in ponds and lakes, and it was postulated that decaying vegetation from formerly exposed sediments might trigger algal blooms that could result in fish kills in Par Pond following the refill. Sporadic algal blooms involving blue-green algae were detected, especially during the summer of 1996. However, the data derived from the study demonstrates that overall, the refilling effort caused no significant negative impact to the pond attributable to phytoplankton dynamics.

  13. The refreezing of melt ponds on Arctic sea ice

    Science.gov (United States)

    Flocco, Daniela; Feltham, Daniel L.; Bailey, Eleanor; Schroeder, David

    2015-02-01

    The presence of melt ponds on the surface of Arctic sea ice significantly reduces its albedo, inducing a positive feedback leading to sea ice thinning. While the role of melt ponds in enhancing the summer melt of sea ice is well known, their impact on suppressing winter freezing of sea ice has, hitherto, received less attention. Melt ponds freeze by forming an ice lid at the upper surface, which insulates them from the atmosphere and traps pond water between the underlying sea ice and the ice lid. The pond water is a store of latent heat, which is released during refreezing. Until a pond freezes completely, there can be minimal ice growth at the base of the underlying sea ice. In this work, we present a model of the refreezing of a melt pond that includes the heat and salt balances in the ice lid, trapped pond, and underlying sea ice. The model uses a two-stream radiation model to account for radiative scattering at phase boundaries. Simulations and related sensitivity studies suggest that trapped pond water may survive for over a month. We focus on the role that pond salinity has on delaying the refreezing process and retarding basal sea ice growth. We estimate that for a typical sea ice pond coverage in autumn, excluding the impact of trapped ponds in models overestimates ice growth by up to 265 million km3, an overestimate of 26%.

  14. CO₂ efflux from shrimp ponds in Indonesia.

    Science.gov (United States)

    Sidik, Frida; Lovelock, Catherine E

    2013-01-01

    The conversion of mangrove forest to aquaculture ponds has been increasing in recent decades. One of major concerns of this habitat loss is the release of stored 'blue' carbon from mangrove soils to the atmosphere. In this study, we assessed carbon dioxide (CO₂) efflux from soil in intensive shrimp ponds in Bali, Indonesia. We measured CO₂ efflux from the floors and walls of shrimp ponds. Rates of CO₂ efflux within shrimp ponds were 4.37 kg CO₂ m⁻² y⁻¹ from the walls and 1.60 kg CO₂ m⁻² y⁻¹ from the floors. Combining our findings with published data of aquaculture land use in Indonesia, we estimated that shrimp ponds in this region result in CO₂ emissions to the atmosphere between 5.76 and 13.95 Tg y⁻¹. The results indicate that conversion of mangrove forests to aquaculture ponds contributes to greenhouse gas emissions that are comparable to peat forest conversion to other land uses in Indonesia. Higher magnitudes of CO₂ emission may be released to atmosphere where ponds are constructed in newly cleared mangrove forests. This study indicates the need for incentives that can meet the target of aquaculture industry without expanding the converted mangrove areas, which will lead to increased CO₂ released to atmosphere.

  15. CO₂ efflux from shrimp ponds in Indonesia.

    Directory of Open Access Journals (Sweden)

    Frida Sidik

    Full Text Available The conversion of mangrove forest to aquaculture ponds has been increasing in recent decades. One of major concerns of this habitat loss is the release of stored 'blue' carbon from mangrove soils to the atmosphere. In this study, we assessed carbon dioxide (CO₂ efflux from soil in intensive shrimp ponds in Bali, Indonesia. We measured CO₂ efflux from the floors and walls of shrimp ponds. Rates of CO₂ efflux within shrimp ponds were 4.37 kg CO₂ m⁻² y⁻¹ from the walls and 1.60 kg CO₂ m⁻² y⁻¹ from the floors. Combining our findings with published data of aquaculture land use in Indonesia, we estimated that shrimp ponds in this region result in CO₂ emissions to the atmosphere between 5.76 and 13.95 Tg y⁻¹. The results indicate that conversion of mangrove forests to aquaculture ponds contributes to greenhouse gas emissions that are comparable to peat forest conversion to other land uses in Indonesia. Higher magnitudes of CO₂ emission may be released to atmosphere where ponds are constructed in newly cleared mangrove forests. This study indicates the need for incentives that can meet the target of aquaculture industry without expanding the converted mangrove areas, which will lead to increased CO₂ released to atmosphere.

  16. The Pond Is Our Laboratory

    Science.gov (United States)

    Marchewka, Barbara Turco

    1978-01-01

    This science teacher's laboratory is a pond within walking distance of his school that provides a stimulating environment for exploring the natural world. With simple materials students practice making careful observations, taking measurements and compiling and graphing information for their science studies. They also extend their pond experiences…

  17. Pond of Illusion: Interacting through Mixed Reality

    DEFF Research Database (Denmark)

    Nobel-Jørgensen, Morten; Nielsen, Jannik Boll; Larsen, Anders Boesen Lindbo

    2013-01-01

    Pond of Illusion is a mixed reality installation where a virtual space (the pond) is injected between two real spaces. The users are in either of the real spaces, and they can see each other through windows in the virtual space as illustrated in Figure 1(left). The installation attracts people...... to a large display in either of the real spaces by allowing them to feed virtual fish swimming in the pond. Figure 1(middle) shows how a Microsoft Kinect mounted on top of the display is used for detecting throw motions, which triggers virtual breadcrumbs to be thrown into the pond for feeding the nearby...... fish. Of course, the fish may not be available because they are busy eating what people have thrown into the pond from the other side....

  18. The color of melt ponds on Arctic sea ice

    Science.gov (United States)

    Lu, Peng; Leppäranta, Matti; Cheng, Bin; Li, Zhijun; Istomina, Larysa; Heygster, Georg

    2018-04-01

    Pond color, which creates the visual appearance of melt ponds on Arctic sea ice in summer, is quantitatively investigated using a two-stream radiative transfer model for ponded sea ice. The upwelling irradiance from the pond surface is determined and then its spectrum is transformed into RGB (red, green, blue) color space using a colorimetric method. The dependence of pond color on various factors such as water and ice properties and incident solar radiation is investigated. The results reveal that increasing underlying ice thickness Hi enhances both the green and blue intensities of pond color, whereas the red intensity is mostly sensitive to Hi for thin ice (Hi 1.5 m), similar to the behavior of melt-pond albedo. The distribution of the incident solar spectrum F0 with wavelength affects the pond color rather than its intensity. The pond color changes from dark blue to brighter blue with increasing scattering in ice, and the influence of absorption in ice on pond color is limited. The pond color reproduced by the model agrees with field observations for Arctic sea ice in summer, which supports the validity of this study. More importantly, the pond color has been confirmed to contain information about meltwater and underlying ice, and therefore it can be used as an index to retrieve Hi and Hp. Retrievals of Hi for thin ice (Hi measurements than retrievals for thick ice, but those of Hp are not good. The analysis of pond color is a new potential method to obtain thin ice thickness in summer, although more validation data and improvements to the radiative transfer model will be needed in future.

  19. The Migration Security in Russian Society amid Ethnic and Social Conflicts Aggravation

    Directory of Open Access Journals (Sweden)

    N А Tkacheva

    2011-03-01

    Full Text Available National security protection emerges as an indispensable factor for the development of personality, society, and state amid the increasing complexity of international migration processes. The article touches upon the peculiarities of ethnic and social relations between migrants and members of the host country providing insight into the novel category of "migration security".

  20. Examining Water Quality Variations of Tidal Pond System

    Science.gov (United States)

    Chui, T. F. M.; Cui, W.

    2014-12-01

    Brackish tidal shrimp ponds, traditionally referred to as gei wais, have been constructed along coastal areas in many parts of the world. The regular exchange of pond water with the surrounding coastal environment is important as it brings shrimp larvae and nutrients, etc. into and out of the pond. Such a water exchange can reduce the quality of the receiving waters; though there are opposing views recently because farming practices are becoming more sustainable while other sources of pollutions in the surroundings are increasing. This project monitors the water quality of a tidal shrimp pond and its receiving water at high temporal resolution. The pond is located within the wetland complex of Mai Po Nature Reserve in Hong Kong, China. Water quality parameters (i.e., dissolved oxygen, temperature, salinity, pH, water depth and chlorophyll) were recorded at 15-minute interval from December 2013 to March 2014 within the pond and also at its receiving water which is a water channel within a mangrove forest. Data reveals both daily and fortnightly fluctuations. Daily variations in mangrove correspond to both tidal flushing and insolation, whereas those within the pond correspond mainly to insolation. For example, dissolved oxygen in mangrove shows two peaks daily which correlate with tidal elevation, and that within the pond shows only one peak which correlates with sunlight. Dissolved oxygen within the pond also shows a fortnightly pattern that corresponds to the schedule of water exchange. Such high temporal resolution of monitoring reveals the two-way water quality influences between the pond and the mangrove. It sheds insights that can possibly lead to refinement of water exchange practice and water sampling schedule given the temporal variations of the water quality both inside and outside the pond. It thus enables us to take a step closer in adopting more sustainable farming practices despite increasing pollution in the surrounding areas.

  1. Security of attachment and quality of mother-toddler social interaction in a high-risk sample.

    Science.gov (United States)

    Haltigan, John D; Lambert, Brittany L; Seifer, Ronald; Ekas, Naomi V; Bauer, Charles R; Messinger, Daniel S

    2012-02-01

    The quality of children's social interactions and their attachment security with a primary caregiver are two widely studied indices of socioemotional functioning in early childhood. Although both Bowlby and Ainsworth suggested that the parent-child interactions underlying the development of attachment security could be distinguished from other aspects of parent-child interaction (e.g., play), relatively little empirical research has examined this proposition. The aim of the current study was to explore this issue by examining concurrent relations between toddler's attachment security in the Strange Situation Procedure and quality of mother-child social interaction in a high-risk sample of toddlers characterized by prenatal cocaine exposure and low levels of maternal education. Analyses of variance suggested limited relations between attachment security and quality of social interaction. Further research examining the interrelations among various components of the parent-child relationship is needed. Copyright © 2011 Elsevier Inc. All rights reserved.

  2. Design and Application of a Solar Mobile Pond Aquaculture Water Quality-Regulation Machine Based in Bream Pond Aquaculture.

    Science.gov (United States)

    Liu, Xingguo; Xu, Hao; Ma, Zhuojun; Zhang, Yongjun; Tian, Changfeng; Cheng, Guofeng; Zou, Haisheng; Lu, Shimin; Liu, Shijing; Tang, Rong

    2016-01-01

    Bream pond aquaculture plays a very important role in China's aquaculture industry and is the main source of aquatic products. To regulate and control pond water quality and sediment, a movable solar pond aquaculture water quality regulation machine (SMWM) was designed and used. This machine is solar-powered and moves on water, and its primary components are a solar power supply device, a sediment lifting device, a mechanism for walking on the water's surface and a control system. The solar power supply device provides power for the machine, and the water walking mechanism drives the machine's motion on the water. The sediment lifting device orbits the main section of the machine and affects a large area of the pond. Tests of the machine's mechanical properties revealed that the minimum illumination necessary for the SMWM to function is 13,000 Lx and that its stable speed on the water is 0.02-0.03 m/s. For an illumination of 13,000-52,500 Lx, the sediment lifting device runs at 0.13-0.35 m/s, and its water delivery capacity is 110-208 m(3)/h. The sediment lifting device is able to fold away, and the angle of the suction chamber can be adjusted, making the machine work well in ponds at different water depths from 0.5 m to 2 m. The optimal distance from the sediment lifting device to the bottom of the pond is 10-15 cm. In addition, adjusting the length of the connecting rod and the direction of the traction rope allows the SMWM to work in a pond water area greater than 80%. The analysis of water quality in Wuchang bream (Parabramis pekinensis) and silver carp (Hypophthalmichthys molitrix) culture ponds using the SMWM resulted in decreased NH3(+)-N and available phosphorus concentrations and increased TP concentrations. The TN content and the amount of available phosphorus in the sediment were reduced. In addition, the fish production showed that the SMWM enhanced the yields of Wuchang bream and silver carp by more than 30% and 24%, respectively. These results

  3. Should the poor have no medicines to cure? A study on the association between social class and social security among the rural migrant workers in urban China.

    Science.gov (United States)

    Guan, Ming

    2017-11-07

    The rampant urbanization and medical marketization in China have resulted in increased vulnerabilities to health and socioeconomic disparities among the rural migrant workers in urban China. In the Chinese context, the socioeconomic characteristics of rural migrant workers have attracted considerable research attention in the recent past years. However, to date, no previous studies have explored the association between the socioeconomic factors and social security among the rural migrant workers in urban China. This study aims to explore the association between socioeconomic inequity and social security inequity and the subsequent associations with medical inequity and reimbursement rejection. Data from a regionally representative sample of 2009 Survey of Migrant Workers in Pearl River Delta in China were used for analyses. Multiple logistic regressions were used to analyze the impacts of socioeconomic factors on the eight dimensions of social security (sick pay, paid leave, maternity pay, medical insurance, pension insurance, occupational injury insurance, unemployment insurance, and maternity insurance) and the impacts of social security on medical reimbursement rejection. The zero-inflated negative binomial regression model (ZINB regression) was adopted to explore the relationship between socioeconomic factors and hospital visits among the rural migrant workers with social security. The study population consisted of 848 rural migrant workers with high income who were young and middle-aged, low-educated, and covered by social security. Reimbursement rejection and abusive supervision for the rural migrant workers were observed. Logistic regression analysis showed that there were significant associations between socioeconomic factors and social security. ZINB regression showed that there were significant associations between socioeconomic factors and hospital visits among the rural migrant workers. Also, several dimensions of social security had significant

  4. DATA Act File B Object Class and Program Activity - Social Security

    Data.gov (United States)

    Social Security Administration — The DATA Act Information Model Schema Reporting Submission Specification File B. File B includes the agency object class and program activity detail obligation and...

  5. 75 FR 7546 - Foreign Trade Regulations (FTR): Eliminate the Social Security Number (SSN) as an Identification...

    Science.gov (United States)

    2010-02-22

    ... DEPARTMENT OF COMMERCE Census Bureau 15 CFR Part 30 [Docket Number: 090422707-91445-02] RIN 0607-AA48 Foreign Trade Regulations (FTR): Eliminate the Social Security Number (SSN) as an Identification... Trade Regulations (FTR) to eliminate the requirement to report a Social Security Number (SSN) as an...

  6. Human Development Index and Efficiency level of Social Security Hospitals

    Directory of Open Access Journals (Sweden)

    H. Sepehrdost

    2012-04-01

    Full Text Available Introduction & Objective: Hospitals as one of the main institutions providing health care services play an important role in the health system and allocate a high percentage of health sector's budget to them. This study aimed to answer whether social security hospitals efficiency levels are the same for all provinces in Iran? And whether any relationship exists between the human development indexes (HDI of the provinces and technical efficiency levels of the hospitals?Materials & Methods: Data envelopment analysis model has been used to measure technical efficiency of 65 social security hospitals, including small hospitals (working with lower than one hundred active beds and large hospitals (working with over one hundred active beds during the years 2007 to 2009. Further, the relationship between human development index and technical efficiency of hospitals in the provinces has been analyzed.Results: Results show that the average technical efficiency of small and large hospitals working in low and medium HDI provinces (0.912 and 0.937 are more than the average technical efficiency of hospitals in higher HDI provinces (0.870 and 0.887.Conclusion: It is recommended that social security organization concentrated distribute its hospital services in provinces with lower HDI and higher density of population living under the coverage of organization’s insurance. This will eventually puts its positive effects on per capita income of people, as well as more equitable distribution of income. (Sci J Hamadan Univ Med Sci 2012;19(1:32-38

  7. Nation State as Security Provider in Human Security Issue

    OpenAIRE

    Maya Padmi, Made Fitri

    2015-01-01

    Human Security notion is emphasizing on human as the central of security studies, challenging the position of state as the core of security. Some studies are tried to separate the state security and human security, however there are strong connection between these two notions. State has important role in establishing and maintaining the security of its own citizens. Through social contract and social security protection, state are oblige to set the security of its own people as their security...

  8. Social security reform in two stages

    Directory of Open Access Journals (Sweden)

    Carlos Ranulfo Melo

    2006-01-01

    Full Text Available This article analyzes Brazilian social security reform during the Fernando Henrique and Lula Administrations. After comparing the contexts in which the different Constitutional Amendment proposals (PECs were submitted and the behavior by Members of Congress during the two periods, we argue that a contextual change (namely a switch in places between government and opposition affected the distribution of preferences and resources between the players and impacted the government in the various arenas in which the game was being played, and that as a result the reformist agenda has made more progress under the current Workers' Party administration.

  9. 76 FR 18812 - Submission for Review: We Need the Social Security Number of the Person Named Below, RI 38-45

    Science.gov (United States)

    2011-04-05

    ... OFFICE OF PERSONNEL MANAGEMENT Submission for Review: We Need the Social Security Number of the... request (ICR) 3206-0144, We Need the Social Security Number of the Person Named Below, RI 38-45. As... Operations, Retirement Services, Office of Personnel Management. Title: We Need the Social Security Number of...

  10. Domestic Labor and the Lack of Social Security Protection in Brazil: Questions for Analysis

    Directory of Open Access Journals (Sweden)

    Rita de Lourdes de Lima

    2010-01-01

    Full Text Available This article analyzes domestic labor in Brazil, considering gender, the sexual division of labor and social security, which are influenced by the social transformations of the late 20th century. To do so, a dialog was established with various theoreticians including: Boschetti, Hirata, Kergoat, Nogueira and Saffioti.A historical review of the sexual division of labor in capitalist society is conducted, utilizing the concept of gender and examining inequality between men and women in the work force. Then, looking at social security in Brazil, the  implications of counter reforms to the system for female labor and particularly for domestic work are analyzed, identifying the real lack of social protection suffered by the entire working class.

  11. Renewable energy for the aeration of wastewater ponds.

    Science.gov (United States)

    Hobus, I; Hegemann, W

    2003-01-01

    The application of a decentralised renewable energy supply for the aeration of wastewater ponds, and the influence of an unsteady oxygen supply on the specific conversion rate and biocoenose was investigated. With the discontinuous aeration the specific conversion rate is increased as compared to facultative ponds. The estimation of the microorganisms consortia was done with in situ hybridisation techniques. A significant shift in the bacteria population with the chosen specific probes for anaerobic, sulphate reducing and nitrifying bacteria could not be detected. Wastewater ponds have sufficient buffer volume to compensate for the fluctuating energy supply. But the efficiency of the energy supply of a photovoltaic plant decreases in shallow lakes (d photovoltaic and wind power plant, energy management, aeration system and wastewater pond, a simulation model was developed and tested. The application of renewable energy for the aeration of wastewater ponds is a useful alternative for the redevelopment of overloaded ponds as well as the construction of new wastewater ponds, especially in areas with an inadequate central electricity grid and a high availability of wind and solar energy.

  12. Results of submerged sediment core sampling and analysis on Par Pond, Pond C, and L Lake: July 1995

    International Nuclear Information System (INIS)

    Koch, J.W. II; Martin, F.D.; Friday, G.P.

    1996-06-01

    Sediment cores from shallow and deep water locations in Par Pond, Pond C, and L Lake were collected and analyzed in 1995 for radioactive and nonradioactive constituents. This core analysis was conducted to develop a defensible characterization of contaminants found in the sediments of Par Pond, Pond C, and L Lake. Mercury was the only nonradiological constituent with a nonestimated quantity that was detected above the U.S Environmental Protection Agency Region IV potential contaminants of concern screening criteria. It was detected at a depth of 0.3--0.6 meters (1.0--2.0 feet) at one location in L Lake. Cesium-137, promethium-146, plutonium-238, and zirconium-95 had significantly higher concentrations in Par Pond sediments than in sediments from the reference sites. Cobalt-60, cesium-137, plutonium-238, plutonium-239/240, and strontium-90 had significantly higher concentrations in L-Lake sediments than sediments from the reference sites

  13. Helping the Hacker? Library Information, Security, and Social Engineering

    Directory of Open Access Journals (Sweden)

    Samuel T. C. Thompson

    2006-12-01

    Full Text Available Social engineering is the use of nontechnical means to gain unauthorized access to information or computer systems. While this method is recognized as a major security threat in the computer industry, little has been done to address it in the library field. This is of particular concern because libraries increasingly have access to databases of both proprietary and personal information. This tutorial is designed to increase the awareness of library staff in regard to the issue of social engineering.

  14. Par Pond Fish, Water, and Sediment Chemistry

    International Nuclear Information System (INIS)

    Paller, M.H.; Wike, L.D.

    1996-06-01

    The objectives of this report are to describe the Par Pond fish community and the impact of the drawdown and refill on the community, describe contaminant levels in Par Pond fish, sediments, and water and indicate how contaminant concentrations and distributions were affected by the drawdown and refill, and predict possible effects of future water level fluctuations in Par Pond

  15. Par Pond Fish, Water, and Sediment Chemistry

    Energy Technology Data Exchange (ETDEWEB)

    Paller, M.H. [Westinghouse Savannah River Company, AIKEN, SC (United States); Wike, L.D.

    1996-06-01

    The objectives of this report are to describe the Par Pond fish community and the impact of the drawdown and refill on the community, describe contaminant levels in Par Pond fish, sediments, and water and indicate how contaminant concentrations and distributions were affected by the drawdown and refill, and predict possible effects of future water level fluctuations in Par Pond.

  16. 100-D Ponds groundwater quality assessment

    International Nuclear Information System (INIS)

    Hartman, M.J.

    1996-01-01

    The 100-D Ponds facility is regulated under the Resource Conservation and Recovery Act of 1976. The pH of groundwater in a downgradient well is statistically different than local background, triggering an assessment of groundwater contamination under 40 CFR 265.93. Results of a similar assessment, conducted in 1993, show that the elevated pH is caused by the presence of alkaline ash sediments beneath the ponds, which are not part of the RCRA unit. The 100-D Ponds should remain in indicator evaluation monitoring

  17. ANL-W 779 pond seepage test

    International Nuclear Information System (INIS)

    Braun, D.R.

    1992-11-01

    The ANL-W 779 sanitary wastewater treatment ponds are located on the Idaho National Engineering Laboratory (INEL), north of the Argonne National Laboratory -- West (ANL-W) site A seepage test was performed for two Argonne National Laboratory -- West (ANL-W) sanitary wastewater treatment ponds, Facility 779. Seepage rates were measured to determine if the ponds are a wastewater land application facility. The common industry standard for wastewater land application facilities is a field-measured seepage rate of one quarter inch per day or greater

  18. The Potential Effects of Obesity on Social Security Claiming Behavior and Retirement Benefits.

    Science.gov (United States)

    Knoll, Melissa A Z; Shoffner, Dave; O'Leary, Samantha

    2018-04-16

    Obesity prevalence among Americans has increased for nearly three decades. We explore the relationship between the rise in obesity and Social Security retirement benefit claiming, a decision impacting nearly all aging Americans. Specifically, we investigate whether obesity can affect individuals' decision to claim benefits early, a choice that has important implications for financial security in retirement, particularly for those with lower socioeconomic status (SES). We use a microsimulation model called MINT6 (Modeling Income in the Near Term, version 6) to demonstrate the potential effects of obesity on subjective life expectancy and claiming behavior. We impute obesity status using data from the National Health and Nutrition Examination Survey (NHANES), which describes the distribution of obesity prevalence within the United States by gender, poverty status, and race/ethnicity. We find that the rise in obesity and the consequent incidence of obesity-related diseases may lead some individuals to make claiming decisions that lead to lower monthly and lifetime Social Security retirement benefits. Further, we find that the potential economic impact of this decision is larger for those with lower SES. We present a behavioral perspective by addressing the potential effects that obesity can have on individuals' retirement decisions and their resulting Social Security retirement benefits.

  19. Extension of social security coverage for the informal economy in Indonesia : surveys in the urban and rural informal economy

    OpenAIRE

    Angelini, John; Hirose, Kenichi

    2004-01-01

    This paper focuses on the extension of social security coverage to workers in the informal economy. In particular, the paper presents the results of surveys assessing social security needs of workers in the informal economy in both urban and rural areas. The outcome of these surveys provides primary information for the development of effective policy on social security coverage extension to these groups of workers.

  20. Health and Social Security Needs of Rickshaw Pullers in Ranchi.

    Science.gov (United States)

    Kumar, Anant; Thomas, Joe; Wadhwa, Sonal S; Mishra, Aprajita; Dasgupta, Smita

    2016-07-01

    A significant number of "marginalized" population groups are denied their health rights, healthcare access, benefits of government health programs, and other health-related social security benefits. These population groups, particularly the rickshaw pullers of India, are vulnerable because of their poor social and economic status, migration history, lack of permanent settlements, lack of social capital, and so on. These reasons, coupled with other social-political reasons, lead to no or limited access to health services and poor health conditions. This study intends to explore and understand the context and health seeking behavior of rickshaw pullers in Ranchi, the capital city of Jharkhand state in India, with special reference to wider social determinants of health such as, access, affordability, and delivery of health services. The data was collected from 1,000 rickshaw pullers from 40 "rickshaw garages" in Ranchi. The findings of the study show that rickshaw pullers can't afford to "attach" much importance to their health due to various reasons and suffer from a variety of occupational and other illnesses. The health conditions of the rickshaw pullers are affected by poverty, negligence, illiteracy, lack of awareness and unavailability of affordable, quality health services. These are only a symptom of the larger structural issues affecting health. The study suggests that rickshaw pullers, being a marginalized and excluded population group, require special health and social security programs that include safe, affordable, and accessible services along with a special focus on health education, behavior change, and promotion of appropriate health-seeking behavior.

  1. Site-specific health and safety plan 100-D Pond remediation project

    International Nuclear Information System (INIS)

    Hobbs, B.J.

    1996-06-01

    The 100-D Ponds are located north of the northern perimeter fence of the 100-D Area. The ponds were excavated in a preexisting basin that had been used for disposal of coal ash. There are two ponds, one used as a settling pond and the other a percolation pond. Liquid effluent from the 100-D process sewers was discharged to the ponds from 1977 through 1987; after 1987 the ponds received backwash and rinsate from the 100-D water treatment facilities. All discharges to the ponds ceased in June 1994, and the ponds were allowed to dry up

  2. Mechanisms for parasites removal in a waste stabilisation pond.

    Science.gov (United States)

    Reinoso, Roberto; Blanco, Saúl; Torres-Villamizar, Linda A; Bécares, Eloy

    2011-04-01

    A waste stabilisation pond (WSP) system formed by two anaerobic ponds, a facultative pond and a maturation pond was studied from December 2003 to September 2004 in north-western Spain in order to evaluate its efficiency in the removal of faecal indicator bacteria (total coliforms, Escherichia coli, faecal streptococci), coliphages, helminth eggs and protozoan (oo)cysts (Cryptosporidium and Giardia). Furthermore, sediment samples were collected from the bottom of the ponds to assess the settling rates and thus determine the main pathogen removal mechanisms in the WSPs system. The overall removal ranged from 1.4 log units for coliphages in the cold period to 5.0 log units for E. coli in the hot period. Cryptosporidium oocysts were reduced by an average of 96%, Giardia cysts by 98% and helminth eggs by 100%. The anaerobic ponds showed significantly higher surface removal rates (4.6, 5.2 and 3.7 log (oo)cysts/eggs removed m(-2) day(-1), respectively) than facultative and maturation ponds. Sunlight and water physicochemical conditions were the main factors influencing C. parvum oocysts removal both in the anaerobic and maturation ponds, whereas other factors like predation or natural mortality were more important in the facultative pond. Sedimentation, the most commonly proposed mechanism for cyst removal had, therefore, a negligible influence in the studied ponds.

  3. Greenhouse Gas Exchange in Small Arctic Thaw Ponds

    Science.gov (United States)

    Laurion, I.; Bégin, P. N.; Bouchard, F.; Preskienis, V.

    2014-12-01

    Arctic lakes and ponds can represent up to one quarter of the land surface in permafrost landscapes, particularly in lowland tundra landscapes characterized by ice wedge organic polygons. Thaw ponds can be defined as the aquatic ecosystems associated to thawing of organic soils, either resulting from active layer processes and located above low-center peat polygons (hereafter low-center polygonal or LCP ponds), or resulting from thermokarst slumping above melting ice wedges linked to the accelerated degradation of permafrost (hereafter ice-wedge trough or IWT ponds). These ponds can merge together forming larger water bodies, but with relatively stable shores (hereafter merged polygonal or MPG ponds), and with limnological characteristics similar to LCP ponds. These aquatic systems are very small and shallow, and present a different physical structure than the larger thermokarst lakes, generated after years of development and land subsidence. In a glacier valley on Bylot Island, Nunavut, Canada, thermokarst and kettle lakes together represent 29% of the aquatic area, with a thermal profile resembling those of more standard arctic lakes (mixed epilimnion). The IWT ponds (44% of the area) are stratified for a large fraction of the summer despite their shallowness, while LCP and MPG ponds (27% of the area) show a more homogeneous water column. This will affect gas exchange in these diverse aquatic systems, in addition to their unique microbiota and organic carbon lability that control the production and consumption rates of greenhouse gases. The stratification in IWT ponds generates hypoxic conditions at the bottom, and together with the larger availability of organic carbon, stimulates methanogenesis and limits the mitigating action of methanotrophs. Overall, thaw ponds are largely supersaturated in methane, with IWT ponds dominating the emissions in this landscape (92% of total aquatic emissions estimated for the same valley), and they present large variations in

  4. Valuing Multiple Benefits, and the Public Perception of SUDS Ponds

    Directory of Open Access Journals (Sweden)

    Joy Jarvie

    2017-02-01

    Full Text Available Understanding how the public perceive and value ponds is fundamental to appreciate the synergy between Sustainable urban Drainage (SUDS ponds and the multiple benefits they provide. This paper investigates this, through the application of a structured postal and online survey, for a case study area of Edinburgh, in the UK. It compares man-made ponds (including SUDS, and ponds with natural origins. The results from Whole Life Cost show that the benefits (based on Contingent Valuation exceed the CAPEX and OPEX costs for three of five artificial ponds studied. Benefits from natural (reference ponds exceed the replacement costs for a pond with the same surface area/catchment. This paper highlights the importance of monetising the multiple benefits from ponds.

  5. Imperfect Annuity Markets, Unintended Bequests, and the Optimal Age Structure of Social Security Benefits

    OpenAIRE

    Martin Feldstein

    1989-01-01

    The social security program now provides a constant real benefit throughout each retirees lifetime. This paper examines whether total welfare would rise if benefits were lower in early retirement years (when most individuals have some saving with which to finance consumption) and higher in later years (when the uncertainty of survival and the absence of actuarially fair private annuities makes the availability of social security benefits more important.) The analysis shows that there is a pot...

  6. Long-term changes in pond permanence, size, and salinity in Prairie Pothole Region wetlands: The role of groundwater-pond interaction

    Science.gov (United States)

    LaBaugh, James W.; Rosenberry, Donald O.; Mushet, David M.; Neff, Brian; Nelson, Richard D.; Euliss, Ned H.

    2018-01-01

    Study RegionCottonwood Lake area wetlands, North Dakota, U.S.A.Study FocusFluctuations in pond permanence, size, and salinity are key features of prairie-pothole wetlands that provide a variety of wetland habitats for waterfowl in the northern prairie of North America. Observation of water-level and salinity fluctuations in a semi-permanent wetland pond over a 20-year period, included periods when the wetland occasionally was dry, as well as wetter years when the pond depth and surface extent doubled while volume increased 10 times.New hydrological insights for the study regionCompared to all other measured budget components, groundwater flow into the pond often contributed the least water (8–28 percent) but the largest amount (>90 percent) of specific solutes to the water and solute budgets of the pond. In drier years flow from the pond into groundwater represented > 10 percent of water loss, and in 1992 was approximately equal to evapotranspiration loss. Also during the drier years, export of calcium, magnesium, sodium, potassium, chloride, and sulfate by flow from the pond to groundwater was substantial compared with previous or subsequent years, a process that would have been undetected if groundwater flux had been calculated as a net value. Independent quantification of water and solute gains and losses were essential to understand controls on water-level and salinity fluctuations in the pond in response to variable climate conditions.

  7. Microbial activities and communities in oil sands tailings ponds

    Energy Technology Data Exchange (ETDEWEB)

    Gieg, Lisa; Ramos, Esther; Clothier, Lindsay; Bordenave, Sylvain; Lin, Shiping; Voordouw, Gerrit; Dong, Xiaoli; Sensen, Christoph [University of Calgary (Canada)

    2011-07-01

    This paper discusses how the microbial communities and their activity play a vital role in tailings ponds. The ponds contain microorganisms along with metals, hydrocarbon diluent, naphthenic acid and others. The ponds play an important role in mining operations because they store bitumen extraction waste and also allow water to be re-used in the bitumen extraction process. Pond management presents a few challenges that include, among others, gas emissions and the presence of toxic and corrosive acids. Microbial activities and communities help in managing these ponds. Microbial activity measurement in active and inactive ponds is described and analyzed and the results are presented. The conditions for reducing sulfate, nitrate and iron are also presented. From the results it can be concluded that naphthenic acids can potentially serve as substrates for anaerobic populations in tailings ponds.

  8. Musculoskeletal disorder survey for pond workers

    Science.gov (United States)

    Maryani, A.; Partiwi, S. G.; Dewi, H. N. F.

    2018-04-01

    Mucsuloskeletal disorder will affect worker performance and become serious injury when ignored, so that workers cannot work normally. Therefore, an effective strategy plan is needed to reduce the risk of musculoskeletal disorder. A pond worker is profession with high risk of physical complain. Four main activities are ponds preparation, seed distribution, pond maintenance, and harvesting. The methods employed in this current musculoskeletal disorder survey are questionnaire and interview. The result from 73 questionnaires shown that most of pond workers were working for 7 days a week. Prevalence physical complain are on neck, shoulders, upper back, lower back, and knees. The level of perceived complaint is moderate pain. However, most of them do not contact therapists or physicians. Therefore it is necessary to improve the working methods to be able to reduce physical complains due to musculoskeletal disorder.

  9. Social Security Administration - Quarterly Data for Spoken Language Preferences of Supplemental Security Income Blind and Disabled Applicants (2016-onwards)

    Data.gov (United States)

    Social Security Administration — This data set provides quarterly volumes for language preferences at the national level of individuals filing claims for SSI Blind and Disabled benefits from fiscal...

  10. Does the Peer Group Matter? Assessing Frog Pond Effects in Transition to Secondary Schooling

    DEFF Research Database (Denmark)

    Skov, Peter Rohde

    In this paper, I investigate whether a social comparison mechanism affects the choice of secondary schooling. I investigate the theory of frog pond effects on choice of upper secondary education using school-by-grade fixed effects models and comprehensive administrative data. I examine the non...

  11. Prevalence of temporary social security benefits due to respiratory disease in Brazil.

    Science.gov (United States)

    Ildefonso, Simone de Andrade Goulart; Barbosa-Branco, Anadergh; Albuquerque-Oliveira, Paulo Rogério

    2009-01-01

    To determine the prevalence of temporary social security benefits due to respiratory disease granted to employees, as well as the number of lost workdays and costs resulting from those in Brazil between 2003 and 2004. Cross-sectional study using data obtained from the Unified System of Benefits of the Brazilian Institute of Social Security (INSS, Instituto Nacional de Seguro Social) and the Brazilian Social Registry Database. Data regarding gender, age, diagnosis and type of economic activity, as well as type, duration and cost of benefits, were compiled. Respiratory diseases accounted for 1.3% of the total number of temporary social security benefits granted by INSS, with a prevalence rate of 9.92 (per 10,000 employment contracts). Females and individuals older than 50 years of age were the most affected. Non-work-related benefits were more common than were work-related benefits. The most prevalent diseases were pneumonia, asthma and COPD, followed by laryngeal and vocal cord diseases. The most prevalent types of economic activity were auxiliary transportation equipment manufacturing, tobacco product manufacturing and computer-related activities. The mean duration of benefits was 209.68 days, with a mean cost of R$ 4,495.30 per occurrence. Respiratory diseases caused by exogenous agents demanded longer sick leave (mean, 296.72 days) and greater cost (mean, R$ 7,105.74). The most prevalent diseases were airway diseases and pneumonia. Workers from auxiliary transportation equipment manufacturing, tobacco product manufacturing and computer-related activities were the most affected. Diseases caused by exogenous agents demanded longer sick leaves and resulted in greater costs.

  12. Market Valuation of Accrued Social Security Benefits

    OpenAIRE

    John Geanakoplos; Stephen P. Zeldes

    2009-01-01

    One measure of the health of the Social Security system is the difference between the market value of the trust fund and the present value of benefits accrued to date. How should present values be computed for this calculation in light of future uncertainties? We think it is important to use market value. Since claims on accrued benefits are not currently traded in financial markets, we cannot directly observe a market value. In this paper, we use a model to estimate what the market price for...

  13. A case study for biogas generation from covered anaerobic ponds treating abattoir wastewater: Investigation of pond performance and potential biogas production

    International Nuclear Information System (INIS)

    McCabe, Bernadette K.; Hamawand, Ihsan; Harris, Peter; Baillie, Craig; Yusaf, Talal

    2014-01-01

    Highlights: • We report on the performance of a novel covered anaerobic pond system. • Potential biogas production was estimated using BioWin modelling software. • Ponds maintained stable operation; however, accumulation of crust was an issue. • Modelling indicated that biogas yield can be influenced by decomposition efficiency. • Configuration and operation of ponds can also impact potential biogas production. - Abstract: Covered anaerobic ponds offer significant advantages to the red meat processing industry by capturing methane rich gas as a fuel source for bioenergy while reducing greenhouse gas emissions (GHG). This paper presents the results of a novel-designed anaerobic pond system at an Australian abattoir in relation to pond performance and potential biogas production. Key findings in assessing the effectiveness of the system revealed that the covered ponds are capable of efficient wastewater decomposition and biogas production. The primary issue with the covered ponds at the abattoir was the build-up of fat/crust that prevented the accurate measurement of biogas and effective use of the cover. In the absence of field biogas data the novel application of the computer modelling software BioWin® was carried out to simulate chemical oxygen demand (COD) removal rates and subsequent biogas yield. The unique parameter used to fit field data was the fraction of the inlet COD due to a superficial crust which did not follow anaerobic digestion. Field data effluent COD removal rates were matched to simulated rates predicted by BioWin when measured influent COD was reduced to 30%. Biogas modelling results suggest significant variation in the economic benefit of biogas energy, with the quantity of biogas potentially varying tenfold (from 328 m 3 /d to 3284 m 3 /d) depending on site factors such as pond efficiency, pond configuration and operational practices

  14. 226Ra and 228Ra activities associated with agricultural drainage ponds and wetland ponds in the Kankakee Watershed, Illinois-Indiana, USA

    International Nuclear Information System (INIS)

    Sidle, W.C.; Shanklin, D.; Lee, P.Y.; Roose, D.L.

    2001-01-01

    Background radioactivity is elevated in many agricultural drainage ponds and also constructed wetland ponds in the Kankakee watershed. During 1995-1999, gross-α and -β activities were measured up to 455 and 1650 mBq L -1 , respectively. 226 Ra and 228 Ra averaged 139 and 192 mBq L -1 in controlled drainage ponds compared to 53 and 58 mBq L -1 for 226 Ra and 228 Ra, respectively, in native wetland ponds. Analyses of applied ammonium phosphate fertilizers near both native and controlled ponds indicate comparable 226 Ra/ 228 Ra and 228 Ra/ 232 Th activity ratios with only the surface waters in the controlled ponds. For example, 226 Ra/ 228 Ra activity ratios in controlled ponds ranged from 0.79 to 0.91 and group with a local fertilizer batch containing FL phosphate compounds with 226 Ra/ 228 Ra activity ratios of 0.83-1.04. Local soils of the Kankakee watershed have 226 Ra/ 228 Ra activity ratios of 0.54-0.70. Calculated Ra fluxes of waters, in drainage ditches associated with these controlled ponds, for 226 Ra ranged from 0.77 to 9.00 mBq cm -2 d -1 and for 228 Ra ranged from 1.22 to 8.43 mBq cm -2 d -1 . Ra activity gradients were measured beneath these controlled ponds both in agricultural landscapes and in constructed wetlands, all being associated with drainage ditches. Ra had infiltrated to the local water table but was below regulatory maximum contaminant limits. Still, measurable Ra activity was measured downgradient of even the constructed wetlands in the Kankakee watershed, suggesting that the attenuation of Ra was low. However, no Ra excess was observed in the riparian zone or the Kankakee River downgradient of the native wetland ponds

  15. Physicians' Self-Conceptions of Their Expertise in Statutory Health Insurance and Social Security Systems.

    Science.gov (United States)

    Seger, Wolfgang; Nüchtern, Elisabeth

    2015-07-01

    Medical experts who practice social medicine have a strong ethical approach for their professional positions. Their reports must reflect an objective, independent, high-quality assessment of interactions between health status and the disability of individuals. However, they must simultaneously consider the societal involvement of these individuals when determining the framework of the Statutory Health Insurance and Social Security Systems. Their task is to recommend sociomedical benefits that are tailored to suit personal needs and that respect the individual life situations of the persons involved, thus complementing the efforts of healthcare professionals in clinical settings. The editorial describes the self-conception of this medical specialty on behalf of the German Society of Social Medicine and Prevention (DGSMP). Policy makers in social insurances and social security systems generally must respect independent sociomedical recommendations as a crucial point for further realistic development activities.

  16. Social security as Markov equilibrium in OLG models: A note

    DEFF Research Database (Denmark)

    Gonzalez Eiras, Martin

    2011-01-01

    I refine and extend the Markov perfect equilibrium of the social security policy game in Forni (2005) for the special case of logarithmic utility. Under the restriction that the policy function be continuous, instead of differentiable, the equilibrium is globally well defined and its dynamics...

  17. Oral health status in older adults with social security in Mexico City: Latent class analysis.

    Science.gov (United States)

    Sánchez-García, Sergio; Heredia-Ponce, Erika; Cruz-Hervert, Pablo; Juárez-Cedillo, Teresa; Cárdenas-Bahena, Angel; García-Peña, Carmen

    2014-02-01

    To explore the oral health status through a latent class analysis in elderly social security beneficiaries from Southwest Mexico City. Cross-sectional study of beneficiaries of the State Employee Social Security and Social Services Institute (ISSSTE, in Spanish) and the Mexican Institute of Social Security (IMSS, in Spanish) aged 60 years or older. Oral health conditions such as edentulism, coronal and root caries (DMFT and DFT ≥ 75 percentile), clinical attachment loss (≥ 4 mm), and healthy teeth (≤ 25 percentile) were determined. A latent class analysis (LCA) was performed to classify the oral health status of dentate patients. In total, 336 patients were included (47.9% from the ISSSTE and 52.1% from the IMSS), with an average age of 74.4 (SD = 7.1) years. The 75th percentile of the DMFT = 23 and of the DFT = 2. Of the patients, 77.9% had periodontal disease. The 25th percentile of healthy teeth = 4. A three class model is adequate, with a high classification quality (Entropy = 0.915). The patients were classified as "Edentulous" (15.2%), "Class 1 = Unfavorable" (13.7%), "Class 2 = Somewhat favorable" (10.4%), and "Class 3 = Favorable" (60.7%). Using "Class 3 = Favorable" as a reference, there was an association (OR = 3.4; 95% CI = 1.8-6.4) between being edentulous and being 75 years of age and over, compared with the 60- to 74-year age group. The oral health in elderly social security beneficiaries is not optimal. The probability of becoming edentulous increases with age. A three-class model appropriately classifies the oral health dimensions in the elderly population. Key words:Elderly, Latent class analysis (LCA), oral health, social security, Mexico.

  18. UHS, Ultimate Heat Sink Cooling Pond Analysis

    International Nuclear Information System (INIS)

    Codell, R.; Nuttle, W.K.

    1998-01-01

    1 - Description of program or function: Three programs model performance of an ultimate heat sink cooling pond. National Weather Service data is read and analyzed to predict periods of lowest cooling performance and highest evaporative loss. The data is compared to local site data for significant differences. Then the maximum pond temperature is predicted. Five programs model performance of an ultimate heat sink spray pond. The cooling performance, evaporative water loss, and drift water loss as a function of wind speed are estimated for a spray field. These estimates are used in conjunction with National Weather Service data to predict periods of lowest cooling performance and highest evaporative loss. This data is compared to local site data for significant differences. Then the maximum pond temperature is predicted. 2 - Method of solution: The transfer of heat and water vapor is modeled using an equilibrium temperature procedure for an UHS cooling pond. The UHS spray pond model considers heat, mass, and momentum transfer from a single water drop with the surrounding air, and modification of the surrounding air resulting from the heat, mass, and momentum transfer from many drops in different parts of a spray field. 3 - Restrictions on the complexity of the problem: The program SPRCO uses RANF, a uniform random number generator which is an intrinsic function on the CDC. All programs except COMET use the NAMELIST statement, which is non standard. Otherwise these programs conform to the ANSI Fortran 77 standard. The meteorological data scanning procedure requires tens of years of recorded data to be effective. The models and methods, provided as useful tool for UHS analyses of cooling ponds and spray ponds, are intended as guidelines only. Use of these methods does not automatically assure NRC approval, nor are they required procedures for nuclear-power-plant licensing

  19. Flocculation of retention pond water

    International Nuclear Information System (INIS)

    Hart, B.T.; McGregor, R.J.

    1982-05-01

    An integral part of the water management strategy proposed by Ranger Uranium Mining Pty. Ltd. involves the collection of runoff water in a series of retention ponds. This water will subsequently be used in the uranium milling plant or released to Magela Creek. Runoff water collected during the wet season caused a section of Magela Creek to become turbid when it was released. The eroded material causing the turbidity was very highly dispersed and showed little tendency to sediment out in the retention ponds. Results of a preliminary study to determine the feasibility of clarifying retention pond water by flocculation with alum are presented. A concentration of 30 Mg/L alum reduced turbidity from an initial 340 NTU to less than 30 NTU in four hours

  20. PERFORMANCES OF TIGER SHRIMP CULTURE IN ENVIRONMENTALLY FRIENDLY PONDS

    Directory of Open Access Journals (Sweden)

    Taufik Ahmad

    2016-10-01

    Full Text Available Mangrove ecosystem plays an obvious role in maintaining the biological balance in the coastal environment where shrimp ponds are usually constructed. The removal of mangroves around shrimp ponds has frequently brought about harvest failure. The study evaluated the performance of tiger shrimp culture in ponds provided with water from a water body where there was mangrove vegetation (hereafter mangrove reservoir. Twelve ponds, each measuring 2,500 m2, were filled with seawater from the mangrove reservoir until the water depth of 100 cm and then stocked with 20-40 PL/m2. In the first six ponds, the bottom water was released into the reservoir when the water depth reached 140 cm and then the water depth was maintained at 100 cm. In the second six ponds, the water was released from the ponds until the water depth reached 60 cm and then refilled with reservoir water until a depth of 100 cm. Both treatment ponds received water from the reservoir which also received the wastewater. The feeds for the shrimps were broadcast into the ponds twice a day to meet the 3% shrimp biomass requirement, which adjusted every other week through sampling. The result showed that mangrove  vegetation is capable of removing excessive nutrients, up to 70% for NO3- N and NH4 +-N, reducing PO4 =-P fluctuation, and producing bioactive  compounds. In the second treatment ponds, shrimp mortality started to occur in day 28 and most died by day 54 after stocking due to white spot disease outbreak. Mass mortality took place 54 days after stocking in two out of six of the first treatment ponds.

  1. Earnings Sharing in the U.S. Social Security System: A Microsimulation Analysis of Future Female Retirees

    Science.gov (United States)

    Iams, Howard M.; Reznik, Gayle L.; Tamborini, Christopher R.

    2010-01-01

    Purpose: As part of an ongoing effort to analyze the distributional implications of potential policy reforms to the U.S. Social Security system, we consider the widely discussed reform of earnings sharing. Such an approach has been viewed as a way to "update" Social Security's family benefits based on marital status and as a means to…

  2. Potential land competition between open-pond microalgae production and terrestrial dedicated feedstock supply systems in the U.S.

    Energy Technology Data Exchange (ETDEWEB)

    Langholtz, Matthew H.; Coleman, Andre M.; Eaton, Laurence M.; Wigmosta, Mark S.; Hellwinckel, Chad M.; Brandt, Craig C.

    2016-08-01

    Biofuels produced from both terrestrial and algal biomass feedstocks can contribute to energy security while providing economic, environmental, and social benefits. To assess the potential for land competition between these two feedstock types in the United States, we evaluate a scenario in which 41.5 x 109 L yr-1 of second-generation biofuels are produced on pastureland, the most likely land base where both feedstock types may be deployed. This total includes 12.0 x 109 L yr-1 of biofuels from open-pond microalgae production and 29.5 x 109 L yr-1 of biofuels from terrestrial dedicated feedstock supply systems. Under these scenarios, open-pond microalgae production is projected to use 1.2 million ha of private pastureland, while terrestrial dedicated feedstock supply systems would use 14.0 million ha of private pastureland. A spatial meta-analysis indicates that potential competition for land under these scenarios would be concentrated in 110 counties, containing 1.0 and 1.7 million hectares of algal and terrestrial dedicated feedstock production, respectively. A land competition index applied to these 110 counties suggests that 38 to 59 counties could experience competition for upwards of 40% of a county’s pastureland. However, this combined 2.7 million ha represents only 2%-5% of total pastureland in the U.S., with the remaining 12.5 million ha of algal or terrestrial dedicated feedstock production on pastureland in non-competing areas.

  3. Twitter, Facebook, and Ten Red Balloons: Social Network Problem Solving and Homeland Security

    OpenAIRE

    Ford, Christopher M.

    2011-01-01

    This article appeared in Homeland Security Affairs (February 2011), v.7 no.1 This essay, the winner of the Center for Homeland Defense and Security (CHDS) Essay Contest in 2010, looks at how homeland security could benefit from crowd-sourced applications accessed through social networking tools such as Twitter and Facebook. Christopher M. Ford looks at the apparent efficacy of two such endeavors: the Defense Advanced Research Projects Agency'۪s (DARPA) competition to find ten 8-foot balloo...

  4. Social Media Platforms as a Tool for Sharing Emotions. A Perspective upon the National Security Agencies

    Directory of Open Access Journals (Sweden)

    Ramona-Diana LEON

    2016-05-01

    Full Text Available Emotions importance increases even more in the context of the national security agencies. Since their mission is to protect and defend the citizens against attacks and also to provide leadership and justice services to other agencies and partners, the aim of the information they post on social media should be twofold: on the one hand, it should reflect the attitudes, values and beliefs, supported by the institution, and on the other hand, it should have an impact on citizens feeling of security. But, do they manage to meet these demands? Are they focusing on impressing the audience or they concentrate on sharing specific emotions? Is it a marketing strategy or a knowledge strategy? Starting from these, the purpose of this research is to set a nexus between emotions and the use of social media by the national security organizations. In other words, we aim (i to determine the main types of emotions, (ii to establish whether these are shared within the social media platforms, (iii to identify the purpose for which the national security organizations use social media, (iv to determine whether social media could serve as Ba for the national security organizations. In order to achieve these objectives, we employ an ethic approach and develop a longitudinal study based on quantitative and qualitative content analysis. The results prove that social media platforms may serve as Ba since they appear as a shared space which fosters individual and collective knowledge creation and sharing. The national security agencies  use social media platforms for combining the classical four types of Ba: originating Ba (it shares its emotions, feelings and thoughts through its posts, interacting Ba (through the generated reactions and comments, it ensures the development of shared models and the conversion of tacit knowledge into explicit knowledge, cyber Ba (by fostering the virtual interaction among its followers and exercising Ba (by facilitating the creation of

  5. Corrective Action Investigation Plan for Corrective Action Unit 552: Area 12 Muckpile and Ponds, Nevada Test Site, Nevada: Revision 0

    Energy Technology Data Exchange (ETDEWEB)

    U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office

    2004-04-06

    This Corrective Action Investigation Plan contains the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office's approach for collecting the data necessary to evaluate corrective action alternatives appropriate for the closure of Corrective Action Unit (CAU) 552: Area 12 Muckpile and Ponds, Nevada Test Site (NTS), Nevada, under the Federal Facility Agreement and Consent Order. Located in Area 12 on the NTS, CAU 552 consists of two Corrective Action Sites (CASs): 12-06-04, Muckpile; 12-23-05, Ponds. Corrective Action Site 12-06-04 in Area 12 consists of the G-Tunnel muckpile, which is the result of tunneling activities. Corrective Action Site 12-23-05 consists of three dry ponds adjacent to the muckpile. The toe of the muckpile extends into one of the ponds creating an overlap of two CASs. The purpose of the investigation is to ensure that adequate data are collected to provide sufficient and reliable information to identify, evaluate, and select technic ally viable corrective actions. The results of the field investigation will support a defensible evaluation of corrective action alternatives in the corrective action decision document.

  6. How Family Status and Social Security Claiming Options Shape Optimal Life Cycle Portfolios.

    Science.gov (United States)

    Hubener, Andreas; Maurer, Raimond; Mitchell, Olivia S

    2016-04-01

    We show how optimal household decisions regarding work, retirement, saving, portfolio allocations, and life insurance are shaped by the complex financial options embedded in U.S. Social Security rules and uncertain family transitions. Our life cycle model predicts sharp consumption drops on retirement, an age-62 peak in claiming rates, and earlier claiming by wives versus husbands and single women. Moreover, life insurance is mainly purchased on men's lives. Our model, which takes Social Security rules seriously, generates wealth and retirement outcomes that are more consistent with the data, in contrast to earlier and less realistic models.

  7. CONSIDERATIONS ON THE PAY SYSTEM AND SOCIAL SECURITY IN SPAIN

    OpenAIRE

    Mihaela – Andreea Nastasie

    2012-01-01

    In the current context of economic crisis which manifests the world can see a very important role of the pay systems and social security in economic and social life. Staff wages means establishing a salary entitlements owed to employees and their payment, as established at the end of collective or individual employment contracts. In Spain there are various collective agreements according to geographical areas and activities. A fair and balanced wage was and will remain a core area of human re...

  8. Tenure security, social relations and contract choice: Endogenous matching in the Chinese land rental market

    Science.gov (United States)

    Ma, Xianlei; Zhou, Yuepeng; Shi, Xiaoping

    2017-04-01

    In China, land rental transactions have increased considerably since the 1990s, but there exists a high degree of segmentation and informal features. The rental transactions between partners with close social relations and the use of informal contracts remain a common phenomenon in many regions, which strongly reduce the potential of the land rental market to enhance productivity and equity. The current literature postulates that the insecurity of land property rights may restrict land transactions between members of same social relations. Studies conducted in China show that the land rentals between partners with closer social relations prefer informal contracts because these contracts are self-enforced based on trust and reputation. However, little literature has jointly examined the effect of land tenure security and social relations on joint decisions of partner and contract choice in the Chinese land rental market. Based on household data collected in Jiangxi and Liaoning provinces in 2015, this paper aims to examine the relationship between land tenure security perceptions, social relation and land rental contract choices in China. We differentiate between formal and informal contracts of land rental activities because they have different enforcement mechanisms and thus different risk-sharing strategy. With regards to social relations, we differ among relatives, villagers living in the same village and strangers according to social distance. In order to reduce estimation bias without accounting for endogenous matching between landlords and tenants, we investigate the joint partner and contract choices in the land rental market using a nested logit framework. The paper contributes to the literature on the effect of tenure security and social relations on land rental contracts by (i) taking into account endogenous matching between landlords and tenants, and estimating the joint decisions of partner and contract choice, and (ii) examining the effect of perceived

  9. Diversity of phytoplankton in some domestic wastewater-fed urban fish pond ecosystems of the Chota Nagpur Plateau in Bankura, India

    Science.gov (United States)

    Das, Debjyoti; Pathak, Arabinda; Pal, Sudin

    2018-06-01

    The present limnological investigation is conducted to study the relationship between phytoplankton abundance and five important physicochemical factors in urban wastewater-fed seven fish ponds of Chota Nagpur Plateau area. A total number of 43 phytoplankton taxa representing four classes, namely Cyanophyceae (7), Chlorophyceae (29), Bacillariophyceae (5) and Euglenophyceae (2), are thriving in these ponds which may suggest that different nutrient-rich wastewater supports the diversity and abundance of the phytoplankton. Different values of diversity indices, results of post hoc analysis and rarefaction curve are depicted spatial variations of phytoplankton abundance and physicochemical factors. From the Principal Component Analysis, out of 43 phytoplankton species, 23 important species are extracted. The canonical correspondence analysis presents that most of the phytoplankton species densities are associated with higher values of the physicochemical variables in these ponds. Correspondingly, in the present study, Algal Genus Pollution Index (AGPI) is employed to study the water quality of seven sites. From the AGPI score, it is revealed that Site 4 has probable high organic pollution and Site 2 and Site 3 have moderate organic pollution. Therefore, long-term intensive studies and proper management are necessary to protect these ponds toward eutrophication and degradation, because these ponds not only act as a safeguard of livelihoods but also contribute significantly at local level food and water security and economic prosperity.

  10. Transition in the fractal geometry of Arctic melt ponds

    Directory of Open Access Journals (Sweden)

    C. Hohenegger

    2012-10-01

    Full Text Available During the Arctic melt season, the sea ice surface undergoes a remarkable transformation from vast expanses of snow covered ice to complex mosaics of ice and melt ponds. Sea ice albedo, a key parameter in climate modeling, is determined by the complex evolution of melt pond configurations. In fact, ice–albedo feedback has played a major role in the recent declines of the summer Arctic sea ice pack. However, understanding melt pond evolution remains a significant challenge to improving climate projections. By analyzing area–perimeter data from hundreds of thousands of melt ponds, we find here an unexpected separation of scales, where pond fractal dimension D transitions from 1 to 2 around a critical length scale of 100 m2 in area. Pond complexity increases rapidly through the transition as smaller ponds coalesce to form large connected regions, and reaches a maximum for ponds larger than 1000 m2, whose boundaries resemble space-filling curves, with D ≈ 2. These universal features of Arctic melt pond evolution are similar to phase transitions in statistical physics. The results impact sea ice albedo, the transmitted radiation fields under melting sea ice, the heat balance of sea ice and the upper ocean, and biological productivity such as under ice phytoplankton blooms.

  11. Social Security for China’s Migrant Workers – Providing for Old Age

    Directory of Open Access Journals (Sweden)

    Andrew Watson

    2009-01-01

    Full Text Available The concept of “migrant workers” derives from the household registration system of China’s planned economy period. The continued existence of that system conflicts with the development of an integrated labour market. The current social security system, based on household registration and a large number of local pools, discriminates against migrant workers because of their mobility and the lack of mechanisms to transfer benefits between pools. As a result, migrants have made major contributions to China’s economic development but do not get the same benefits as urban residents. Faced with this challenge, China’s government has begun to introduce policy reforms to improve social security for migrants. This article explores this development through a focus on old-age insurance. It analyses the special needs of migrants, the obstacles facing policy development and the proposed solutions. It argues that social justice and social equity require the development of a system that treats all citizens equally, and that the logic of an integrated labour market will ultimately require a unified national system of old-age insurance.

  12. Description of work for 216-U-Pond cone penetrometer demonstration

    International Nuclear Information System (INIS)

    Kelty, G.G.

    1993-01-01

    This description of work details the Proposed field activities associated with Cone Penetrometer (CPT) work at the 216-U-10 Pond (U-10 Pond) in the 200 West Area and will serve as a field guide for those performing the work. The U-10 Pond was constructed in 1944 to receive low-level liquid effluent from the various chemical reprocessing facilities within the 200 West Area. The U-10 Pond covered 30 acres and received approximately 4.3 x 10 10 gal of contaminated liquid. Sampling conducted in 1980 indicated that the most significant radionuclides were 90 Sr, 137 Cs, plutonium, and uranium (DOE-RL 1993). The pond was deactivated and stabilized in 1985 with clean fill dirt. The thickness of the stabilization cover is variable across the former pond and ranges between 2 ft near the pond margins and delta area to 8 feet in the deepest section of the pond. The purpose of this work is to establish the extent of contamination beneath the U-10 pond

  13. Importance of security and socialization in europeans life

    Directory of Open Access Journals (Sweden)

    Diana Elena Şerb

    2017-01-01

    Full Text Available The purpose of this research is to examine the importance of safety and socialization in the lives of individuals. The influence of agents of socialization (school, family, friends are manifested as differences in preferences, feelings and thoughts of people. The article is structured in two parts. The first part presents the knowledge in the field, but in the context of Maslow's hierarchy of needs. In the second part is carried out an research among Europeans about some aspect of their lives: how they spend their free time, the feeling of attachment to the community, a sense of security and availability to communicate personal matters to their group of friends. The research method was investigating the secondary sources (database obtained from the survey from a site specializing in the analysis of living conditions of Europeans - European Social Survey. After the reception and processing of results in Excel and SPSS we obtained a general conclusion that people need to socialize, to be part of a group and feel safe.

  14. The laboratory environmental algae pond simulator (LEAPS) photobioreactor: Validation using outdoor pond cultures of Chlorella sorokiniana and Nannochloropsis salina

    Energy Technology Data Exchange (ETDEWEB)

    Huesemann, M.; Williams, P.; Edmundson, S.; Chen, P.; Kruk, R.; Cullinan, V.; Crowe, B.; Lundquist, T.

    2017-09-01

    A bench-scale photobioreactor system, termed Laboratory Environmental Algae Pond Simulator (LEAPS), was designed and constructed to simulate outdoor pond cultivation for a wide range of geographical locations and seasons. The LEAPS consists of six well-mixed glass column photobioreactors sparged with CO2-enriched air to maintain a set-point pH, illuminated from above by a programmable multicolor LED lighting (0 to 2,500 µmol/m2-sec), and submerged in a temperature controlled water-bath (-2 °C to >60 °C). Measured incident light intensities and water temperatures deviated from the respective light and temperature set-points on average only 2.3% and 0.9%, demonstrating accurate simulation of light and temperature conditions measured in outdoor ponds. In order to determine whether microalgae strains cultured in the LEAPS exhibit the same linear phase biomass productivity as in outdoor ponds, Chlorella sorokiniana and Nannochloropsis salina were cultured in the LEAPS bioreactors using light and temperature scripts measured previously in the respective outdoor pond studies. For Chlorella sorokiniana, the summer season biomass productivity in the LEAPS was 6.6% and 11.3% lower than in the respective outdoor ponds in Rimrock, Arizona, and Delhi, California; however, these differences were not statistically significant. For Nannochloropsis salina, the winter season biomass productivity in the LEAPS was statistically significantly higher (15.2%) during the 27 day experimental period than in the respective outdoor ponds in Tucson, Arizona. However, when considering only the first 14 days, the LEAPS biomass productivity was only 9.2% higher than in the outdoor ponds, a difference shown to be not statistically significant. Potential reasons for the positive or negative divergence in LEAPS performance, relative to outdoor ponds, are discussed. To demonstrate the utility of the LEAPS in predicting productivity, two other strains – Scenedesmus obliquus and Stichococcus minor

  15. The western pond turtle: Habitat and history. Final report

    International Nuclear Information System (INIS)

    Holland, D.C.

    1994-08-01

    The western pond turtle is known from many areas of Oregon. The majority of sightings and other records occur in the major drainages of the Klamath, Rogue, Umpqua, Willamette and Columbia River systems. A brief overview is presented of the evolution of the Willamette-Puget Sound hydrographic basin. A synopsis is also presented of the natural history of the western pond turtle, as well as, the status of this turtle in the Willamette drainage basin. The reproductive ecology and molecular genetics of the western pond turtle are discussed. Aquatic movements and overwintering of the western pond turtle are evaluated. The effect of introduced turtle species on the status of the western pond turtle was investigated in a central California Pond. Experiments were performed to determine if this turtle could be translocated as a mitigation strategy

  16. Bioaccumulation of heavy metals in two wet retention ponds

    DEFF Research Database (Denmark)

    Søberg, Laila C.; Vollertsen, Jes; Blecken, Godecke-Tobias

    2016-01-01

    Metal accumulation in stormwater ponds may contaminate the inhabiting fauna, thus jeopardizing their ecosystem servicing function. We evaluated bioaccumulation of metals in natural fauna and caged mussel indicator organisms in two wet retention ponds. Mussel cages were distributed throughout...... the ponds to detect bioaccumulation gradients and obtain a time-integrated measure of metal bioavailability. We further investigated if sediment metal concentrations correlate with those in the fauna and mussels. Metal concentrations in the fauna tended to be higher in the ponds than in a reference lake......, but statistical significance was only shown for Cu. Positive correlations were found for some metals in fauna and sediment. Sediment metal concentrations in one pond decreased from inlet to outlet while no gradients were observed in the mussels in either pond. These findings indicate that metal accumulation...

  17. Solar pond design for Arabian Gulf conditions

    Energy Technology Data Exchange (ETDEWEB)

    Hassab, M.A.; Tag, I.A.; Jassim, I.A.; Al-Juburi, F.Y.

    1987-01-01

    Collection and storage of solar energy in salt gradient solar ponds under conditions of high ambient and ground temperatures and all year-round sunny weather are investigated theoretically. A transient model based on measured local environmental conditions is developed to predict solar transmission, temperature distribution and salt distribution inside the pond for any day of the year. In the model the effects of heat dissipation into the ground, bottom reflection, pond dimensions, load extraction and variation of the pond's physical properties with temperature and concentration are investigated. The generated non-linear coupled system of heat and salt concentration equations for the composite media, considered to have isothermal boundary conditions, is solved numerically using the implicit finite-difference scheme.

  18. Cooling pond fog studies

    International Nuclear Information System (INIS)

    Hicks, B.B.

    1978-01-01

    The Fog Excess Water Index (FEWI) method of fog prediction has been verified by the use of data obtained at the Dresden cooling pond during 1976 and 1977 and by a reanalysis of observations made in conjunction with a study of cooling pond simulators during 1974. For applications in which the method is applied to measurements or estimates of bulk water temperature, a critical value of about 0.7 mb appears to be most appropriate. The present analyses confirm the earlier finding that wind speed plays little part in determining the susceptibility for fog generation

  19. Long-term changes in pond permanence, size, and salinity in Prairie Pothole Region wetlands: The role of groundwater-pond interaction

    Directory of Open Access Journals (Sweden)

    James W. LaBaugh

    2018-06-01

    New hydrological insights for the study region: Compared to all other measured budget components, groundwater flow into the pond often contributed the least water (8–28 percent but the largest amount (>90 percent of specific solutes to the water and solute budgets of the pond. In drier years flow from the pond into groundwater represented > 10 percent of water loss, and in 1992 was approximately equal to evapotranspiration loss. Also during the drier years, export of calcium, magnesium, sodium, potassium, chloride, and sulfate by flow from the pond to groundwater was substantial compared with previous or subsequent years, a process that would have been undetected if groundwater flux had been calculated as a net value. Independent quantification of water and solute gains and losses were essential to understand controls on water-level and salinity fluctuations in the pond in response to variable climate conditions.

  20. Small-scale Aquaculture to Strengthen Food Security in Cambodia ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Small-scale Aquaculture to Strengthen Food Security in Cambodia (CIFSRF) ... for their families' consumption in the same ponds as large fish, which can be sold for income. ... The project also studies opportunities to scale up the model for broader use ... Assessing improvements in nutrition outcomes following agricultural ...

  1. Security of social network credentials for accessing course portal: Users' experience

    Science.gov (United States)

    Katuk, Norliza; Fong, Choo Sok; Chun, Koo Lee

    2015-12-01

    Social login (SL) has recently emerged as a solution for single sign-on (SSO) within the web and mobile environments. It allows users to use their existing social network credentials (SNC) to login to third party web applications without the need to create a new identity in the intended applications' database. Although it has been used by many web application providers, its' applicability in accessing learning materials is not yet fully investigated. Hence, this research aims to explore users' (i.e., instructors' and students') perception and experience on the security of SL for accessing learning contents. A course portal was developed for students at a higher learning institution and it provides two types of user authentications (i) traditional user authentication, and (ii) SL facility. Users comprised instructors and students evaluated the login facility of the course portal through a controlled lab experimental study following the within-subject design. The participants provided their feedback in terms of the security of SL for accessing learning contents. The study revealed that users preferred to use SL over the traditional authentication, however, they concerned on the security of SL and their privacy.

  2. Models and observations of Arctic melt ponds

    Science.gov (United States)

    Golden, K. M.

    2016-12-01

    During the Arctic melt season, the sea ice surface undergoes a striking transformation from vast expanses of snow covered ice to complex mosaics of ice and melt ponds. Sea ice albedo, a key parameter in climate modeling, is largely determined by the complex evolution of melt pond configurations. In fact, ice-albedo feedback has played a significant role in the recent declines of the summer Arctic sea ice pack. However, understanding melt pond evolution remains a challenge to improving climate projections. It has been found that as the ponds grow and coalesce, the fractal dimension of their boundaries undergoes a transition from 1 to about 2, around a critical length scale of 100 square meters in area. As the ponds evolve they take complex, self-similar shapes with boundaries resembling space-filling curves. I will outline how mathematical models of composite materials and statistical physics, such as percolation and Ising models, are being used to describe this evolution and predict key geometrical parameters that agree very closely with observations.

  3. Geohydrology and limnology of Walden Pond, Concord, Massachusetts

    Science.gov (United States)

    Colman, John A.; Friesz, Paul J.

    2001-01-01

    The trophic ecology and ground-water contributing area of Walden Pond, in Concord and Lincoln, Mass., were investigated by the U.S. Geological Survey in cooperation with the Massachusetts Department of Environmental Management from April 1997 to July 2000. Bathymetric investigation indicated that Walden Pond (24.88 hectares), a glacial kettle-hole lake with no surface inlet or outlet, has three deep areas. The maximum depth (30.5 meters) essentially was unchanged from measurements made by Henry David Thoreau in 1846. The groundwater contributing area (621,000 square meters) to Walden Pond was determined from water-table contours in areas of stratified glacial deposits and from land-surface contours in areas of bedrock highs. Walden Pond is a flow-through lake: Walden Pond gains water from the aquifer along its eastern perimeter and loses water to the aquifer along its western perimeter. Walden Pond contributing area also includes Goose Pond and its contributing area. A water budget calculated for Walden Pond, expressed as depth of water over the lake surface, indicated that 45 percent of the inflow to the lake was from precipitation (1.215 meters per year) and 55 percent from ground water (1.47 meters per year). The groundwater inflow estimate was based on the average of two different approaches including an isotope mass-balance approach. Evaporation accounted for 26 percent of the outflow from the lake (0.71 meters per year) whereas lake-water seepage to the groundwater system contributed 74 percent of the outflow (1.97 meters per year). The water-residence time of Walden Pond is approximately 5 years. Potential point sources of nutrients to ground water, the Concord municipal landfill and a trailer park, were determined to be outside the Walden Pond groundwater contributing area. A third source, the septic leach field for the Walden Pond State Reservation facilities, was within the groundwater contributing area. Nutrient budgets for the lake indicated that

  4. QUALITATIVE COMPOSITION OF PHYTOPLANKTONS IN DIFFERENTLY MANURED CARP PONDS

    Directory of Open Access Journals (Sweden)

    Ljubica Debeljak

    1997-04-01

    Full Text Available Researches on qualitative composition of phytoplanktons in differently manured fish-ponds "Jelas" were carried out in 1996. The carp fingerling from larve to its second month was nurtured in three fish-ponds (A,B,C with the plantation of larves of 1,000,000 ind.ha-1. Larves and carp fry were nurtured by trouvit and wheat flour. The fish-pond A was controlled but not manured; the fish-pond B was fertilized by the total of 200 kg.ha-1 NPK (15:15:15 and the fish-pond C was fertilized by the total of 75 l.ha-1 of UAN and 75 kg.l-1 of NP (12:52. All fish-ponds had similar water chemism. In the qualitative composition of phytoplanktons there were stated 93 kinds, members of systematic groups Cyanophyta (10%, Euglenophyta (16.2%, Pyrrophyta (2%, Chrysophyta (39.4% and Chlorophyta (32%. All fish-ponds had similar qualitative composition of phytoplanktons with the flora similarity quotient from 65.5% to 72%.

  5. Samples of Asteroid Surface Ponded Deposits in Chondritic Meteorites

    Science.gov (United States)

    Zolensky, M. E.; Lee, R.; Le, L.

    2004-01-01

    One of the many unexpected observations of asteroid 433 Eros by the Near Earth Asteroid Rendezvous (NEAR) mission was the many ponds of fine-grained materials [1-3]. The ponds have smooth surfaces, and define equipotential surfaces up to 10's of meters in diameter [4]. The ponds have a uniformly sub-cm grain size and appear to be cohesive or indurated to some degree, as revealed by slumping. The ponds appear to be concentrated within 30 degrees of the equator of Eros, where gravity is lowest. There is some insight into the mineralogy and composition of the ponds surfaces from NEAR spectroscopy [2,4,5,6]. Compared to the bulk asteroid, ponds: (1) are distinctly bluer (high 550/760 nm ratio), (2) have a deeper 1um mafic band, (3) have reflectance elevated by 5%.

  6. WWER-type NPP spray ponds screen

    International Nuclear Information System (INIS)

    Nikolova, M.; Jordanov, M.; Denev, J.; Markov, D.

    2003-01-01

    The objective of this study is to develop a protection screen of WWER-type NPP spray ponds. The screen design is to ensure reduction of the water droplets blown by the wind and, if possible, their return back to the spray ponds. The cooling capacity of the ponds is not to be changed below the design level for safety reasons. Computational fluid dynamics analysis is used to assess the influence of each design variant on the behavior of the water droplets distribution. Two variants are presented here. The one with plants is found not feasible. The second variant, with steel screen and terrain profile modification is selected for implementation. (author)

  7. Effective surveillance for homeland security balancing technology and social issues

    CERN Document Server

    Flammini, Francesco; Franceschetti, Giorgio

    2013-01-01

    Effective Surveillance for Homeland Security: Balancing Technology and Social Issues provides a comprehensive survey of state-of-the-art methods and tools for the surveillance and protection of citizens and critical infrastructures against natural and deliberate threats. Focusing on current technological challenges involving multi-disciplinary problem analysis and systems engineering approaches, it provides an overview of the most relevant aspects of surveillance systems in the framework of homeland security. Addressing both advanced surveillance technologies and the related socio-ethical issues, the book consists of 21 chapters written by international experts from the various sectors of homeland security. Part I, Surveillance and Society, focuses on the societal dimension of surveillance-stressing the importance of societal acceptability as a precondition to any surveillance system. Part II, Physical and Cyber Surveillance, presents advanced technologies for surveillance. It considers developing technologie...

  8. The evaporation from ponds in the French Midwest

    Directory of Open Access Journals (Sweden)

    Mohammad AL DOMANY

    2013-12-01

    Full Text Available This research shows the results of a study about evaporation in five ponds in the Midwest of France. To realize this study we used climate data from the meteorological station of the Limoges-Bellegarde airport and the data of a weather station installed by us near one of the ponds. We used eight different methods to calculate the evaporation rate and we modified the Penman-Monteith method by replacing the air temperature by water temperature. To understand the role of ponds in water loss through evaporation, we proposed a hypothesis that says : if the pond did not exist, what results would we get? Based on this hypothesis we calculated the potential evapotranspiration rate taking into account the percentage of interception by vegetation. In conclusion, this study indicates that the ponds in the French Midwest present a gain of water

  9. The impact of population ageing on the social security expenditure and economic growth in Japan.

    Science.gov (United States)

    Maruo, N

    1987-05-01

    The author considers the impact of demographic aging in Japan on the social security system and on economic growth. It is argued that "First of all, as the cost of social security (including social services) increases remarkably at the earlier stage of ageing, the disposable (after tax) income and private consumption of the present labour force generation tend to increase at a lower growth rate than that of the GNP....Secondly if pension systems are based on terminal funding schemes, the ageing of the population increases savings (net increase of the amount of the pension funds) at the earlier stage of the ageing of the population. Thirdly, there is a time lag between the increase of social security benefits and the decrease in the personal savings ratio. The high ratio of savings and the shortage of aggregate demand as well as the high pressure for export in...recent Japan can partly be attributed to the above factors." Possible future economic scenarios as demographic ageing in Japan proceeds are described, and policies to avert anticipated problems are outlined. (SUMMARY IN JPN) excerpt

  10. 48 CFR 252.222-7004 - Compliance with Spanish social security laws and regulations.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 3 2010-10-01 2010-10-01 false Compliance with Spanish... PROVISIONS AND CONTRACT CLAUSES Text of Provisions And Clauses 252.222-7004 Compliance with Spanish social... Spanish Social Security Laws and Regulations (JUN 1997) (a) The Contractor shall comply with all Spanish...

  11. Enhancing Profitability of Pond Aquaculture in Ghana through Resource Management and Environmental Best Management Practices

    OpenAIRE

    Ansah, Yaw Boamah

    2014-01-01

    The accelerating pace of growth of aquaculture in sub-Saharan Africa has received much positive appraisal because of the potential of the industry to contribute to economic development and food security by providing jobs and animal protein. Adoption of best management practices (BMPs) holds the potential to ameliorate the related environmental impacts of aquaculture, such as in the amounts of nutrients and sediment that will enter natural water bodies from earthen pond effluents. The goals of...

  12. A security approach based on honeypots: Protecting Online Social network from malicious profiles

    Directory of Open Access Journals (Sweden)

    Fatna Elmendili, Nisrine Maqran

    2017-04-01

    Full Text Available In the recent years, the fast development and the exponential utilization of social networks have prompted an expansion of social Computing. In social networks users are interconnected by edges or links, where Facebook, twitter, LinkedIn are most popular social networks websites. Due to the growing popularity of these sites they serve as a target for cyber criminality and attacks. It is mostly based on how users are using these sites like Twitter and others. Attackers can easily access and gather personal and sensitive user’s information. Users are less aware and least concerned about the security setting. And they easily become victim of identity breach. To detect malicious users or fake profiles different techniques have been proposed like our approach which is based on the use of social honeypots to discover malicious profiles in it. Inspired by security researchers who used honeypots to observe and analyze malicious activity in the networks, this method uses social honeypots to trap malicious users. The two key elements of the approach are: (1 The deployment of social honeypots for harvesting information of malicious profiles. (2 Analysis of the characteristics of these malicious profiles and those of deployed honeypots for creating classifiers that allow to filter the existing profiles and monitor the new profiles.

  13. Trends and Correlates of Consenting to Provide Social Security Numbers: Longitudinal Findings from the General Social Survey (1993-2010)

    Science.gov (United States)

    Kim, Jibum; Shin, Hee-Choon; Rosen, Zohn; Kang, Jeong-han; Dykema, Jennifer; Muennig, Peter

    2015-01-01

    Privacy and confidentiality are often of great concern to respondents answering sensitive questions posed by interviewers. Using the 1993-2010 General Social Survey, we examined trends in the provision of social security numbers (SSNs) and correlates of those responses. Results indicate that the rate of SSN provision has declined over the past…

  14. The critical role of islands for waterbird breeding and foraging habitat in managed ponds of the South Bay Salt Pond Restoration Project, South San Francisco Bay, California

    Science.gov (United States)

    Ackerman, Joshua T.; Hartman, C. Alex; Herzog, Mark P.; Smith, Lacy M.; Moskal, Stacy M.; De La Cruz, Susan E. W.; Yee, Julie L.; Takekawa, John Y.

    2014-01-01

    The South Bay Salt Pond Restoration Project aims to restore 50–90 percent of former salt evaporation ponds into tidal marsh in South San Francisco Bay, California. However, large numbers of waterbirds use these ponds annually as nesting and foraging habitat. Islands within ponds are particularly important habitat for nesting, foraging, and roosting waterbirds. To maintain current waterbird populations, the South Bay Salt Pond Restoration Project plans to create new islands within former salt ponds in South San Francisco Bay. In a series of studies, we investigated pond and individual island attributes that are most beneficial to nesting, foraging, and roosting waterbirds.

  15. Heavy metals, PAHs and toxicity in stormwater wet detention ponds

    DEFF Research Database (Denmark)

    Wium-Andersen, Tove; Nielsen, Asbjørn Haaning; Hvitved-Jacobsen, Thorkild

    2011-01-01

    Concentrations of 6 different heavy metals and total Polycyclic Aromatic Hydrocarbons (PAH) were determined in stormwater runoff and in the pond water of two Danish wet detention ponds. The pond water samples were analyzed for toxic effects, using the algae Selenastrum capricornutum as a test...... organism. Stormwater and pond water from a catchment with light industry showed high levels of heavy metals, especially zinc and copper. The pond water showed high toxic effects and copper were found to be the main toxicant. Additionally, a large part of the copper was suspected to be complex bound......, reducing the potential toxicity of the metal. Another catchment (residential) produced stormwater and pond water with moderate concentration of heavy metals. The pond water occasionally showed toxic effects but no correlation between heavy metals and toxicity was identified. PAHs concentrations were...

  16. Social representations and information security of children and adolescents: the point of view of teachers (Part 1

    Directory of Open Access Journals (Sweden)

    Bovina I.B.

    2017-04-01

    Full Text Available The focus of attention of the authors is the consideration of information security of children and adolescents as the object of social representations. Discusses the need for the theory of social representations to develop prophylactic and preventive programs in the field of information security of children and adolescents, in particular, says that the effectiveness of prevention and preventive programs is determined by how this information is understood by the target group, through what filters it passes. Briefly outlines the main provisions of the theory of social representations, discusses the functions of social representations, the mechanism of action ideas. Analyzed in a few studies, the focus of which was the presentation on new technologies, particularly mobile phones and the Internet. Presents the results of a series of studies devoted to the study of information security of children and adolescents, including the results of the first part of a research project dedicated to the analysis of how parents and teachers understand information security and what strategies to protect children and adolescents from dangerous information they are ready to use.

  17. Simple Rules Govern the Patterns of Arctic Sea Ice Melt Ponds

    Science.gov (United States)

    Popović, Predrag; Cael, B. B.; Silber, Mary; Abbot, Dorian S.

    2018-04-01

    Climate change, amplified in the far north, has led to rapid sea ice decline in recent years. In the summer, melt ponds form on the surface of Arctic sea ice, significantly lowering the ice reflectivity (albedo) and thereby accelerating ice melt. Pond geometry controls the details of this crucial feedback; however, a reliable model of pond geometry does not currently exist. Here we show that a simple model of voids surrounding randomly sized and placed overlapping circles reproduces the essential features of pond patterns. The only two model parameters, characteristic circle radius and coverage fraction, are chosen by comparing, between the model and the aerial photographs of the ponds, two correlation functions which determine the typical pond size and their connectedness. Using these parameters, the void model robustly reproduces the ponds' area-perimeter and area-abundance relationships over more than 6 orders of magnitude. By analyzing the correlation functions of ponds on several dates, we also find that the pond scale and the connectedness are surprisingly constant across different years and ice types. Moreover, we find that ponds resemble percolation clusters near the percolation threshold. These results demonstrate that the geometry and abundance of Arctic melt ponds can be simply described, which can be exploited in future models of Arctic melt ponds that would improve predictions of the response of sea ice to Arctic warming.

  18. Simple Rules Govern the Patterns of Arctic Sea Ice Melt Ponds.

    Science.gov (United States)

    Popović, Predrag; Cael, B B; Silber, Mary; Abbot, Dorian S

    2018-04-06

    Climate change, amplified in the far north, has led to rapid sea ice decline in recent years. In the summer, melt ponds form on the surface of Arctic sea ice, significantly lowering the ice reflectivity (albedo) and thereby accelerating ice melt. Pond geometry controls the details of this crucial feedback; however, a reliable model of pond geometry does not currently exist. Here we show that a simple model of voids surrounding randomly sized and placed overlapping circles reproduces the essential features of pond patterns. The only two model parameters, characteristic circle radius and coverage fraction, are chosen by comparing, between the model and the aerial photographs of the ponds, two correlation functions which determine the typical pond size and their connectedness. Using these parameters, the void model robustly reproduces the ponds' area-perimeter and area-abundance relationships over more than 6 orders of magnitude. By analyzing the correlation functions of ponds on several dates, we also find that the pond scale and the connectedness are surprisingly constant across different years and ice types. Moreover, we find that ponds resemble percolation clusters near the percolation threshold. These results demonstrate that the geometry and abundance of Arctic melt ponds can be simply described, which can be exploited in future models of Arctic melt ponds that would improve predictions of the response of sea ice to Arctic warming.

  19. Vanishing Ponds and Regional Water Resources in Taoyuan, Taiwan

    Directory of Open Access Journals (Sweden)

    Yuei-An Liou

    2015-01-01

    Full Text Available Taiwan has a Subtropic to Tropical climate, but its precipitation varies widely in response to seasonal effects and weather events such as Typhoon and Meiyu systems. Precipitation must be held back in reservoirs to provide and regulate sufficient water supply. Balancing the irregular precipitation and increasing water demands generates tremendous pressure on water resources management for the water stored in the Shihmen Reservoir, which is the major unitary water supply system in the Greater Taoyuan Area. Such pressure will be significantly enlarged due to the huge 17 billion USD Taoyuan Aerotropolis Project. In earlier days many small artificial ponds (a common terminology in this article, including irrigation ponds, fishery ponds and others, were built to cope with water shortages in Taoyuan County. These small storage ponds provided a solution that resolved seasonal precipitation shortages. Unfortunately, these ponds have been vanishing one after another one due to regional industrialization and urbanization in recent decades and less than 40% of them still remain today. There is great urgency and importance to investigating the link between vanishing ponds and water resources management. Remote sensing technology was used in this study to monitor the environmental consequences in the Taoyuan area by conducting multi-temporal analysis on the changes in water bodies, i.e., ponds. SPOT satellite images taken in 1993, 2003, and 2010 were utilized to analyze and assess the importance of small-scale ponds as water conservation facilities. It was found that, during the seventeen years from 1993 - 2010, the number of irrigation ponds decreased by 35.94%. These ponds can reduce the burden on the major reservoir and increase the water recycling rate if they are properly conserved. They can also improve rainfall interception and surface detention capabilities, and provide another planning advantage for regional water management.

  20. Heating an aquaculture pond with a solar pool blanket

    Energy Technology Data Exchange (ETDEWEB)

    Wisely, B; Holliday, J E; MacDonald, R E

    1982-01-01

    A floating solar blanket of laminated bubble plastic was used to heat a 0.11 ha seawater pond of 1.3 m depth. The covered pond maintained daily temperatures 6 to 9/sup 0/C above two controls. Local air temperatures averaged 14 to 19/sup 0/C. Oysters, prawns, seasquirts, and fish in the covered pond all survived. After three weeks, the blanket separated. This was the result of pond temperatures exceeding 30/sup 0/C, the maximum manufacturer's specification. Floating blankets fabricated to higher specifications would be useful for maintaining above-ambient temperatures in small ponds or tanks in temporary situations during cold winter months and might have a more permanent use.

  1. Generating Random Samples of a Given Size Using Social Security Numbers.

    Science.gov (United States)

    Erickson, Richard C.; Brauchle, Paul E.

    1984-01-01

    The purposes of this article are (1) to present a method by which social security numbers may be used to draw cluster samples of a predetermined size and (2) to describe procedures used to validate this method of drawing random samples. (JOW)

  2. Changes in Spending and Labor Supply in Response to a Social Security Benefit Cut: Evidence from Stated Choice Data.

    Science.gov (United States)

    Delavande, Adeline; Rohwedder, Susann

    2017-12-01

    We investigate how individuals in the U.S. expect to adjust their labor force participation and savings if Social Security benefits were cut by 30 percent. Respondents were asked directly what they would do under this scenario. Using the resulting stated choice data we find that respondents would on average reduce spending by 18.2 percent before retirement and 20.4 percent after retirement. About 34.1% of respondents state they would definitely work longer and they would postpone claiming Social Security by 1.1 years. We investigate how working longer and claiming Social Security later would compensate partially for the loss in benefits among the individuals who are currently working, under the assumption that individuals retire and claim at the same time. Individuals would increase their Social Security benefits from the post-reform level due to additional earnings entering the benefit calculation and a smaller early claiming penalty (or higher delayed claiming credit). As a result, the Social Security benefit people would receive would drop on average by 21 rather than 30 percent. Still, the net financial loss, even after accounting for additional earnings, is sizeable for individuals in the lowest wealth tertile.

  3. Factor structure of the Essen Climate Evaluation Schema measure of social climate in a UK medium-security setting.

    Science.gov (United States)

    Milsom, Sophia A; Freestone, Mark; Duller, Rachel; Bouman, Marisa; Taylor, Celia

    2014-04-01

    Social climate has an influence on a number of treatment-related factors, including service users' behaviour, staff morale and treatment outcomes. Reliable assessment of social climate is, therefore, beneficial within forensic mental health settings. The Essen Climate Evaluation Schema (EssenCES) has been validated in forensic mental health services in the UK and Germany. Preliminary normative data have been produced for UK high-security national health services and German medium-security and high-security services. We aim to validate the use of the EssenCES scale (English version) and provide preliminary normative data in UK medium-security hospital settings. The EssenCES scale was completed in a medium-security mental health service as part of a service-wide audit. A total of 89 patients and 112 staff completed the EssenCES. The three-factor structure of the EssenCES and its internal construct validity were maintained within the sample. Scores from this medium-security hospital sample were significantly higher than those from earlier high-security hospital data, with three exceptions--'patient cohesion' according to the patients and 'therapeutic hold' according to staff and patients. Our data support the use of the EssenCES scale as a valid measure for assessing social climate within medium-security hospital settings. Significant differences between the means of high-security and medium-security service samples imply that degree of security is a relevant factor affecting the ward climate and that in monitoring quality of secure services, it is likely to be important to apply different scores to reflect standards. Copyright © 2013 John Wiley & Sons, Ltd.

  4. The availability and affordability of long-term care for disabled older people in China: The issues related to inequalities in social security benefits.

    Science.gov (United States)

    Lei, Peng; Feng, Zhixin; Wu, Zhuochun

    2016-01-01

    China is experiencing increasing pressure from issues relating to an ageing population. The rationality of different eligibility criteria of the benefits within the social security system has been widely challenged; however, to date, no previous study has explored its association with the availability and affordability of long-term care (LTC). This study evaluates the availability and affordability of Long-Term Care (LTC) services for disabled older people (aged 65 and above) in China, with special attention to the differences among groups in receipt of specific social security benefits. The data of availability and affordability of LTC services for disabled older people is from a nationally representative sample Chinese Longitudinal Healthy Longevity Survey (CLHLS). Three different social security benefits were identified and their effects on the long-term care services for disabled older people were explored. The overall proportions of disabled older people who have only limited or no available or affordable LTC services were remarkably high, especially for those who have moderate or no social security benefits. Compared to those who are entitled to generous social security benefits, older people who have no social security benefits are 18.45 times more likely to be unable to afford health care expenses. The findings imply that policy makers in China could focus on the LTC needs for the social security and socioeconomically disadvantaged (who have limited or no social security benefits and in low household income) disabled older people which could reduce the gap between them and those who are entitled to generous social security benefits. Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.

  5. Cohort profile: the Spanish WORKing life Social Security (WORKss) cohort study

    OpenAIRE

    López Gómez, María Andreé, 1985-; Duran Jordà, Xavier, 1974-; Zaballa, Elena; Sánchez Niubò, Albert; Delclòs i Clanchet, Jordi, 1956-; Benavides, Fernando G. (Fernando García)

    2016-01-01

    PURPOSE: The global economy is changing the labour market and social protection systems in Europe. The effect of both changes on health needs to be monitored in view of an ageing population and the resulting increase in prevalence of chronic health conditions. The Spanish WORKing life Social Security (WORKss) cohort study provides unique longitudinal data to study the impact of labour trajectories and employment conditions on health, in terms of sickness absence, permanent disability and deat...

  6. Social Status, Traditional Food Taboos and Food Security: A Study ...

    African Journals Online (AJOL)

    A study was conducted to examine adherence to traditional food taboos by women in Imo State, and relate that to social status and food security. Data was collected from 72 women across the three agricultural zones of the State. It was found that age, income and education are some factors affecting adherence to these ...

  7. Social Security Disability Insurance: Essential Protection when Work Incapacity Strikes

    Science.gov (United States)

    Reno, Virginia P.; Ekman, Lisa D.

    2012-01-01

    Social Security Disability Insurance (SSDI) is an essential lifeline for millions of Americans. Without it, many families would be in deep financial distress. SSDI is insurance that workers pay for through premiums deducted from their pay. In return, workers gain the right to monthly benefits if a disabling condition ends their capacity to earn a…

  8. “Food Security” versus Cash Transfers: Comparative Analysis of Social Security Approaches in India and Brazil

    Directory of Open Access Journals (Sweden)

    Carter Vance

    2018-05-01

    Full Text Available Amongst Global South nations grappling with the problems of both food security and poverty relief, two of the largest are Brazil and India. Though the nations of course differ in a host of socioeconomic, cultural and geopolitical respects, they do face similar problems of sharp income inequality, displacement of rural populations into cities and increasing battles over land and agricultural ownership. At the same time, both countries have had, until recently, a long period of sustained economic growth, as well as centre-left governments (the Workers’ Party in the case of Brazil, the Indian National Congress in the case of India, attempting to spread the benefits of that growth to a wider social strata. The differential approaches that the social security systems in each nation took in attempting to address the problem of food security are, therefore, instructive in understanding how these questions should be approached on a policy level. Though of course constrained in each case by differing economic and political contexts, as well as path dependencies within each country’s existing social protection regime, there are lessons in their successes and failures. Moreover, an approach which would recognize the best aspects of each policy program could be instrumental in designing a food security policy which reconciles institutional and individual problem levels. This paper will examine the political logics which informed both approaches, with an eye to seeing how these were played out in their concrete effects as implemented.

  9. New technologies and emerging threats: personnel security adjudicative guidelines in the age of social networking

    OpenAIRE

    Festa, James P.

    2012-01-01

    Approved for public release; distribution is unlimited Publicized incidents involving espionage or violence by government employees with security clearances have raised concern for the personnel security community. The guidelines used to adjudicate security clearances were last updated in 2005; since that time, significant technological developments, especially in social media and communications, have emerged. This thesis developed a comprehensive list of current Internet behaviors, and us...

  10. Observations of the transmittance in two solar ponds

    Energy Technology Data Exchange (ETDEWEB)

    Almanza, R.; Bryant, M.C.

    1983-11-01

    A NaCl salt gradient solar pond has been in continuous operation at the University of New Mexico since the fall of 1975; a smaller pond, using KNO/sub 3/ to produce the salinity gradient, was commissioned in the fall of 1981. The distribution of absorbed radiation in the ponds is of key importance in the determination of their efficiencies for collecting and storing solar energy. The absorption coefficient of light in an aqueous solution is very dependent upon wavelength; the spectral distribution of sunlight shifts toward the blue and the amount of solar energy absorbed per unit length of path declines with depth of penetration. The presence of suspended solids and bioforms further complicate the transmittance of sun light through the pond, specially since this contamination tends to vary strongly with depth. Because of its importance to the phytoplankton population , considerable work has been done by oceanographers on the absorption and scattering of light for different wavelengths. However, in a solar pond the big question is the amount of energy reaching the lower convective layer (storage). Several attempts have been made to measure the transmittance in solar ponds, mainly NaCl but the problem is to find a temperature-insensitive submersible pyranometer. Convenient formulas have been offered for the attenuation of solar radiation in pond water by considering it to be divided into spectral bands, or by fitting simple analytical functions, or specifying the extintion coefficient. (For the first method, it is necessary to know the absorption and scattering of light for different lambda.) In this paper some measurements of transmittance in the UNM ponds, are presented thereby exhibiting a simple procedure which may be of interest to others in this field.

  11. Trends in social security benefits for oral and oropharyngeal cancer from 2006 to 2013 in Brazil.

    Science.gov (United States)

    Bomfim, Rafael Aiello; Cascaes, Andreia Morales

    2018-01-01

    to analyze the trends in the concession of social security sick pay for oral and oropharyngeal cancer, from 2006 to 2013, in Brazil. time series study using data of workers insured by the Brazilian National Institute of Social Security (INSS); Prais-Winsten generalized linear regressions were used to calculate the annual percentage change (APC). social security benefits for oral and oropharyngeal cancer presented significant increase (APC=9.0%; 95%CI 1.4; 17.4); benefits for other parts of the mouth, nasopharynx, oropharynx, floor of mouth and palate have also shown significant increase; the areas of trade (5.5%) and manufacturing (5.2%) were the most prevalent activities; there was a high proportion of fields in blank in the information systems (average of 72.9%). trends in occupational benefits for oral and oropharyngeal cancer showed significant increase.

  12. Thermal evolutions of two kinds of melt pond with different salinity

    Science.gov (United States)

    Kim, Joo-Hong; Wilkinson, Jeremy; Moon, Woosok; Hwang, Byongjun; Granskog, Mats

    2016-04-01

    Melt ponds are water pools on sea ice. Their formation reduces ice surface albedo and alter surface energy balance, by which the ice melting and freezing processes are regulated. Thus, better understanding of their radiative characteristics has been vital to improve the simulation of melting/freezing of sea ice in numerical models. A melt pond would preserve nearly fresh water if it formed on multi-year ice and no flooding of sea water occurred, whereas a melt pond would contain more salty water if it formed on thinner and porous first-year ice, if there were an inflow of sea water by streams or cracks. One would expect that the fluid dynamic/thermodynamic properties (e.g., turbulence, stability, etc.) of pond water are influenced by the salinity, so that the response of pond water to any heat input (e.g., shortwave radiation) would be different. Therefore, better understanding of the salinity-dependent thermal evolution also has significant potential to improve the numerical simulation of the sea ice melting/freezing response to radiative thermal forcing. To observe and understand the salinity-dependent thermal evolution, two ice mass balance buoys (IMBs) were deployed in two kinds (fresh and salty) of melt pond on a same ice floe on 13 August 2015 during Araon Arctic cruise. The thermistor chain, extending from the air through the pond and ice into the sea water, was deployed through a drilled borehole inside the pond. Besides, the IMBs were also accompanied with three broadband solar radiation sensors (two (up and down) in the air over melt pond and one upward-looking under sea ice) to measure the net shortwave radiation at the pond surface and the penetrating solar radiation through ice. Also, the web camera was installed to observe any updates in the conditions of equipment and surrounding environment (e.g., weather, surface state, etc.). On the date of deployment, the fresh pond had salinity of 2.3 psu, light blue color, lots of slush ice particles which

  13. A study on the barriers of the implementation of social security act in ...

    African Journals Online (AJOL)

    In this study, an analytical review was done on the historical process and contexts of welfare system and social security in order to analyze and evaluate the main features of this act especially in the area of medical services. It was also attempted to study the executive barriers of the appropriate implementation of social ...

  14. Enhancing Ecoefficiency in Shrimp Farming through Interconnected Ponds

    Directory of Open Access Journals (Sweden)

    Ramón Héctor Barraza-Guardado

    2015-01-01

    Full Text Available The future development of shrimp farming needs to improve its ecoefficiency. The purpose of this study was to evaluate water quality, flows, and nitrogen balance and production parameters on a farm with interconnected pond design to improve the efficiency of the semi-intensive culture of Litopenaeus vannamei ponds. The study was conducted in 21 commercial culture ponds during 180 days at densities of 30–35 ind m−2 and daily water exchange <2%. Our study provides evidence that by interconnecting ponds nutrient recycling is favored by promoting the growth of primary producers of the pond as chlorophyll a. Based on the mass balance and flow of nutrients this culture system reduces the flow of solid, particulate organic matter, and nitrogen compounds to the environment and significantly increases the efficiency of water (5 to 6.5 m3 kg−1 cycle−1, when compared with traditional culture systems. With this culture system it is possible to recover up to 34% of the total nitrogen entering the system, with production in excess of 4,000 kg ha−1 shrimp. We believe that the production system with interconnected ponds is a technically feasible model to improve ecoefficiency production of shrimp farming.

  15. First description of underwater acoustic diversity in three temperate ponds

    Directory of Open Access Journals (Sweden)

    Camille Desjonquères

    2015-11-01

    Full Text Available The past decade has produced an increased ecological interest in sonic environments, or soundscapes. However, despite this rise in interest and technological improvements that allow for long-term acoustic surveys in various environments, some habitats’ soundscapes remain to be explored. Ponds, and more generally freshwater habitats, are one of these acoustically unexplored environments. Here we undertook the first long term acoustic monitoring of three temperate ponds in France. By aural and visual inspection of a selection of recordings, we identified 48 different sound types, and according to the rarefaction curves we calculated, more sound types are likely present in one of the three ponds. The richness of sound types varied significantly across ponds. Surprisingly, there was no pond-to-pond daily consistency of sound type richness variation; each pond had its own daily patterns of activity. We also explored the possibility of using six acoustic diversity indices to conduct rapid biodiversity assessments in temperate ponds. We found that all indices were sensitive to the background noise as estimated through correlations with the signal-to-noise ratio (SNR. However, we determined that the AR index could be a good candidate to measure acoustic diversities using partial correlations with the SNR as a control variable. Yet, research is still required to automatically compute the SNR in order to apply this index on a large data set of recordings. The results showed that these three temperate ponds host a high level of acoustic diversity in which the soundscapes were variable not only between but also within the ponds. The sources producing this diversity of sounds and the drivers of difference in daily song type richness variation both require further investigation. Such research would yield insights into the biodiversity and ecology of temperate ponds.

  16. Recovery of aquatic insect-mediated methylmercury flux from ponds following drying disturbance.

    Science.gov (United States)

    Chumchal, Matthew M; Drenner, Ray W; Greenhill, Frank M; Kennedy, James H; Courville, Ashlyn E; Gober, Charlie A A; Lossau, Luke O

    2017-08-01

    Small ponds exist across a permanence gradient, and pond permanence is hypothesized to be a primary determinant of insect community structure and insect-mediated methylmercury (MeHg) flux from ponds to the surrounding terrestrial landscape. The present study describes the first experiment examining the recovery of insect-mediated MeHg flux following a drying disturbance that converted permanent ponds with insectivorous fish to semipermanent ponds without fish. Floating emergence traps were used to collect emergent insects for 10 wk in the spring and summer from 5 ponds with fish (permanent) and 5 ponds that were drained to remove fish, dried, and refilled with water (semipermanent). During the 73-d period after semipermanent ponds were refilled, total MeHg flux from semipermanent ponds was not significantly different than total MeHg flux from permanent ponds, indicating that insect-mediated MeHg flux had rapidly recovered in semipermanent ponds following the drying disturbance. Methylmercury fluxes from dragonflies (Odonata: Anisoptera) and phantom midges (Diptera: Chaoboridae) were significantly greater from newly refilled semipermanent ponds than permanent ponds, but the MeHg fluxes from the other 8 emergent insect taxa did not differ between treatments. The present study demonstrates the impact of drying disturbance and the effect of community structure on the cross-system transport of contaminants from aquatic to terrestrial ecosystems. Environ Toxicol Chem 2017;36:1986-1990. © 2017 SETAC. © 2017 SETAC.

  17. Age structure of the population in Belgium and social security.

    Science.gov (United States)

    Dooghe, G

    1991-01-01

    The effects of demographic aging and of various socioeconomic factors on the social security system in Belgium are explored. "Special attention is given to the impact of the ageing of the population on the pension problem. Based on a simple formula a series of percentages of taxation have been calculated as a function of shifts in the proportion of retired vs. active population and in the proportion of the average income vs. the average amount of pension. One of the conclusions is that the progressive ageing of the population will become the most significant factor in the growth of social expenditures." excerpt

  18. Lifetime distributional effects of Social Security retirement benefits.

    Science.gov (United States)

    Smith, Karen; Toder, Eric; Iams, Howard

    This article presents three measures of the distribution of actual and projected net benefits (benefits minus payroll taxes) from Social Security's Old-Age and Survivors Insurance (OASI) for people born between 1931 and 1960. The results are based on simulations with the Social Security Administration's Model of Income in the Near Term (MINT), which projects retirement income through 2020. The base sample for MINT is the U.S. Census Bureau's Survey of Income and Program Participation panels for 1990 to 1993, matched with Social Security administrative records. The study population is grouped into 5-year birth cohorts and then ranked by economic status in three ways. First, the population is divided into five groups on the basis of individual lifetime covered earnings, and their lifetime present values of OASI benefits received and payroll taxes paid are calculated. By this measure, OASI provides much higher benefits to the lowest quintile of earners than to other groups, but it becomes less redistributive toward lower earners in more recent birth cohorts. Second, people are ranked by shared lifetime covered earnings, and the values of shared benefits received and payroll taxes paid are computed. Individuals are assumed to split covered earnings, benefits, and payroll taxes with their spouses in the years they are married. By the shared covered earnings measure, OASI is still much more favorable to persons in the lower income quintiles, although to a lesser degree than when people are ranked by individual covered earnings. OASI becomes more progressive among recent cohorts, even as net lifetime benefits decline for the entire population. Finally, individuals are ranked on the basis of their shared permanent income from age 62, when they become eligible for early retirement benefits, until death. Their annual Social Security benefits are compared with the benefits they would have received if they had saved their payroll taxes in individual accounts and used the

  19. Groundwater impact assessment report for the 100-D Ponds

    International Nuclear Information System (INIS)

    Alexander, D.J.

    1993-07-01

    The 183-D Water Treatment Facility (WTF) discharges effluent to the 120-0-1 Ponds (100-D Ponds) located north of the 100-D Area perimeter fence. This report satisfies one of the requirements of the Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement) Milestone M-17-00B as agreed by the US Department of Energy, Washington State Department of Ecology, and the US Environmental Protection Agency. Tri-Party Agreement Milestone M-17-00B includes a requirement to assess impacts to groundwater from disposal of the 183-D WTF effluent to the 100-D Ponds. In addition, the 100-D Ponds are a Resource Conservation and Recovery Act of 1976 treatment, storage, and disposal facility covered by the 100-D Ponds Closure Plan (DOE-RL 1993a). There is evidence of groundwater contamination, primarily nitrate, tritium, and chromium, in the unconfined aquifer beneath the 100-D Area and 100 Areas in general. The contaminant plumes are area wide and are a result of past-practice reactor and disposal operations in the 100-D Area currently being investigated as part of the 100-DR-1 and 100-HR-3 Operable Units (DOE-RL 1992b, 1992a). Based on current effluent conditions, continued operation of the 100-D Ponds will not adversely affect the groundwater quality in the 100-D Area. Monitoring wells near the pond have slightly higher alkaline pH values than wells in the rest of the area. Concentrations of known contaminants in these wells are lower than ambient 100-D Area groundwater conditions and exhibit a localized dilution effect associated with discharges to the pond. Hydraulic impact to the local groundwater system from these discharges is minor. The groundwater monitoring well network for the 100-D Ponds is adequate

  20. Analysis of Department of Defense social media policy and its impact on operational security

    OpenAIRE

    Leonhardi, Eric V.; Murphy, Mark; Kim, Hannah

    2015-01-01

    Approved for public release; distribution is unlimited The emergence and rapid adoption of social media by society has forced the Department of Defense (DOD) to adapt, and ultimately develop and incorporate, social media policy into its cybersecurity strategy. While social media has influenced DOD strategy, it has also had a direct impact on the organization’s operational security (OPSEC). DOD personnel using social media represent a potential OPSEC risk through the various ways and means ...

  1. 2101-M pond closure plan. Volume 1, Revision 2

    Energy Technology Data Exchange (ETDEWEB)

    Izatt, R. D.; Lerch, R. E.

    1993-06-01

    This document describes activities for the closure of a surface impoundment (2101-M Pond) at the Hanford Site. The 2101-H Pond was initially constructed in 1953 to serve as a drainage collection area for the 2101-H Building. (Until the Basalt Waste Isolation Project (BWIP) Laboratory was constructed in the 2101-M Building in 1979--1981, the only source contributing discharge to the pond was condensate water from the 2101-H Building heating, ventilation, and air conditioning (HVAC) system. The drains for the BWIP Laboratory rooms were plumbed into a 4-in., cast-iron, low-pressure drain pipe that carries waste water from the HVAC system to the pond. During the active life of the BWIP Laboratory, solutions of dissolved barium in groundwater samples were discharged to the 2101-M Pond via the laboratory drains. As a result of the discharges, a Part A permit application was initially submitted to the Washington State Department of Ecology (Ecology) in August 1986 which designates the 2101-M Pond as a surface impoundment.

  2. Investigation of turbidity effect on exergetic performance of solar ponds

    International Nuclear Information System (INIS)

    Atiz, Ayhan; Bozkurt, Ismail; Karakilcik, Mehmet; Dincer, Ibrahim

    2014-01-01

    Highlights: • A comprehensive experimental work on a turbidity of the solar pond. • Percentage transmission evaluation of the turbid and clean salty water of the zones. • Exergy analysis of the inner zones for turbid and clean salty water. • Turbidity effect on exergy efficiencies of the solar pond. • The thermal performance assessment by comparing the exergetic efficiencies of the solar pond. - Abstract: The present paper undertakes a study on the exergetic performance assessment of a solar pond and experimental investigation of turbidity effect on the system performance. There are various types of solar energy applications including solar ponds. One of significant parameters to consider in the assessment of solar pond performance is turbidity which is caused by dirty over time (e.g., insects, leaf, dust and wind bringing parts fall down). Thus, the turbidity in the salty water decreases solar energy transmission through the zones. In this study, the samples are taken from the three zones of the solar pond and analyzed using a spectrometer for three months. The transmission aspects of the solar pond are investigated under calm and turbidity currents to help distinguish the efficiencies. Furthermore, the maximum exergy efficiencies are found to be 28.40% for the calm case and 22.27% with turbidity effects for the month of August, respectively. As a result, it is confirmed that the solar pond performance is greatly affected by the turbidity effect

  3. Sample Loss and Survey Bias in Estimates of Social Security Beneficiaries: A Tale of Two Surveys.

    OpenAIRE

    John L. Czajka; James Mabli; Scott Cody

    2008-01-01

    Data from the Census Bureau’s Survey of Income and Program Participation (SIPP) and the Current Population Survey (CPS) provide information on current and potential beneficiaries served by Social Security Administration (SSA) programs. SSA also links administrative records to the records of survey respondents who provide Social Security numbers. These matched data expand the content of the SIPP and CPS files to fields available only through SSA and Internal Revenue Service records—such as l...

  4. Organic matter decomposition in simulated aquaculture ponds

    NARCIS (Netherlands)

    Torres Beristain, B.

    2005-01-01

    Different kinds of organic and inorganic compounds (e.g. formulated food, manures, fertilizers) are added to aquaculture ponds to increase fish production. However, a large part of these inputs are not utilized by the fish and are decomposed inside the pond. The microbiological decomposition of the

  5. Operator's and insurer's relationship with social security organizations in the course of individual damage compensation procedures

    International Nuclear Information System (INIS)

    Deprimoz, Jacques.

    1995-01-01

    The Paris and Vienna Conventions internationally agreeded that health care and hospitalization guarantee and disability pension or death due to victim's outside the nuclear installations, as well as the organization funds contributions should be fixed by the internal rights of each Signatory Part. The present study, applicable to nine countries (Germany, Belgium, Brazil, France, Italy, Low Countries, United Kingdom, Sweden and Switzerland) sets up that the social security levels are more or less high and that the charges contributions could be important in countries under subrogation, even reduced or null in countries under imputation. In cases of transfrontier accidents, the contributions extension relies on harmonized rights with the social security organizations of victim's countries. Each indenominity victim's dossier could take a long time. The study concludes that the regulatory services of the social security organizations and their responsible operators or substitutes insurers should coordinate their interventions by using the information system

  6. An Examination of Organizational Information Protection in the Era of Social Media: A Study of Social Network Security and Privacy Protection

    Science.gov (United States)

    Maar, Michael C.

    2013-01-01

    This study investigates information protection for professional users of online social networks. It addresses management's desire to motivate their employees to adopt protective measures while accessing online social networks and to help their employees improve their proficiency in information security and ability to detect deceptive…

  7. Simple intervention to reduce mosquito breeding in waste stabilisation ponds

    DEFF Research Database (Denmark)

    Ensink, Jeroen H J; Mukhtar, Muhammad; van der Hoek, Wim

    2007-01-01

    Waste stabilisation ponds (WSP) are the preferred method for treatment of urban wastewater in low-income countries but, especially in arid regions, the pond systems can be important breeding sites for mosquitoes of medical importance. In a WSP system in Faisalabad, Pakistan, we assessed the impact...... of simple environmental interventions on mosquito occurrence and abundance. Reducing the amount of floating matter in the ponds, eliminating emergent vegetation and repairing cracks in the cement structure reduced the number of mosquito-positive samples in the intervention ponds to almost zero, whereas...... the control ponds had a significant number of positive samples. This suggests that a combination of simple low-cost interventions is a feasible environmental management strategy for vector control in WSP systems that are located in areas where medically important mosquitoes may breed in the shallow ponds....

  8. Exclusión y seguridad social en el plan de desarrollo Exclusion and social security in the Development Plan

    Directory of Open Access Journals (Sweden)

    Rodríguez Salazar Oscar

    1999-06-01

    Full Text Available Este articulo analiza la forma en que el Plan de Desarrollo "Cambio para contruir la Paz" trata el sistema de seguridad social y su interpretacion sobre las causas de la exclusion social. El plan carece de una vision de conjunto del sistema por cuanto no aborda los aspectos reisgos profesionles y pensiones; articula el concepto de solidaridad a las relaciones interpersonales y, asi, subestima el papel del Estado en el logro de esa meta. Por otra parte, las politicas laborales esbozadas en el Plan conducen en forma inexorable a una mayor exclusion social. En cuanto al sistema de seguridad social en salud, dado que la cobertura se ha extendido mediante el regimen subsidiado, la ausencia de una politica que promueva el control social puede acentuar la clientelizacion que Estado manifiesta querer combatir.This article analyzes the way that the Development Plan "Changeto Build Peace" treats the social security system and its interpretation of the causes of social exclusion. The Plan lacks a vision of the system as a whole as it does not address the aspects of professional risks and pensions; it articula tes the concept of solidarity to interpersonal relations and thus underestimates the role of the State in achieving that goal. Moreover, the labor policies outlined in the Plan lead inexorably to greater social exclusion. As far as the social security system for health, given that coverage has been extended by meansof the subsidized regime, the absence of a policy that promotes social control may accentuate the clientelization of the State which the Plan claims to want to combato.

  9. The effects of a social media policy on pharmacy students' facebook security settings.

    Science.gov (United States)

    Williams, Jennifer; Feild, Carinda; James, Kristina

    2011-11-10

    To examine how students entering a doctor of pharmacy (PharmD) program used Facebook privacy settings before and after the college's social media policy was presented to them. The Facebook profiles of all entering first-year pharmacy students across 4 campuses of a college of pharmacy were evaluated. Ten dichotomous variables of interest were viewed and recorded for each student's Facebook account at 3 time points: before the start of the semester, after presentation of the college's social media policy, and at the end of the semester. Data on whether a profile could be found and what portions of the profile were viewable also were collected. After introduction of the policy, a significant number of students increased their security settings (made information not visible to the public) related to Facebook walls, information pages, and links. Making pharmacy students aware of a college's social media policy had a positive impact on their behaviors regarding online security and privacy.

  10. The Effects of a Social Media Policy on Pharmacy Students’ Facebook Security Settings

    Science.gov (United States)

    Feild, Carinda; James, Kristina

    2011-01-01

    Objective. To examine how students entering a doctor of pharmacy (PharmD) program used Facebook privacy settings before and after the college's social media policy was presented to them. Methods. The Facebook profiles of all entering first-year pharmacy students across 4 campuses of a college of pharmacy were evaluated. Ten dichotomous variables of interest were viewed and recorded for each student's Facebook account at 3 time points: before the start of the semester, after presentation of the college's social media policy, and at the end of the semester. Data on whether a profile could be found and what portions of the profile were viewable also were collected. Results. After introduction of the policy, a significant number of students increased their security settings (made information not visible to the public) related to Facebook walls, information pages, and links. Conclusions. Making pharmacy students aware of a college's social media policy had a positive impact on their behaviors regarding online security and privacy. PMID:22171105

  11. Social Media - DoD’s Greatest Information Sharing Tool or Weakest Security Link?

    Science.gov (United States)

    2010-04-15

    or position of the Department of the Army, Department of Defense, or the U.S. Government. SOCIAL MEDIA – DOD’S GREATEST INFORMATION SHARING TOOL...appropriateness and effectiveness of these policies in securing the information network. 15. SUBJECT TERMS Social media , information...TYPE Civilian Research Paper 3. DATES COVERED (From - To) August 2009-April 2010 4. TITLE AND SUBTITLE 5a. CONTRACT NUMBER Social Media

  12. Arctic sea ice melt pond fractal dimension - explained

    Science.gov (United States)

    Popovic, Predrag

    As Arctic sea ice starts to melt in the summer, pools of melt water quickly form on its surface, significantly changing its albedo, and impacting its subsequent evolution. These melt ponds often form complex geometric shapes. One characteristic of their shape, the fractal dimension of the pond boundaries, D, when plotted as a function of pond size, has been shown to transition between the two fundamental limits of D = 1 and D = 2 at some critical pond size. Here, we provide an explanation for this behavior. First, using aerial photographs, we show how this fractal transition curve changes with time, and show that there is a qualitative difference in the pond shape as ice transitions from impermeable to permeable. Namely, while ice is impermeable, maximum fractal dimension is less than 2, whereas after it becomes permeable, maximum fractal dimension becomes very close to 2. We then show how the fractal dimension of a collection of overlapping circles placed randomly on a plane also transitions from D = 1 to D = 2 at a size equal to the average size of a single circle. We, therefore, conclude that this transition is a simple geometric consequence of regular shapes connecting. The one physical parameter that can be extracted from the fractal transition curve is the length scale at which transition occurs. We provide a possible explanation for this length scale by noting that the flexural wavelength of the ice poses a fundamental limit on the size of melt ponds on permeable ice. If this is true, melt ponds could be used as a proxy for ice thickness.

  13. A review of virus removal in wastewater treatment pond systems.

    Science.gov (United States)

    Verbyla, Matthew E; Mihelcic, James R

    2015-03-15

    Wastewater treatment ponds (lagoons) are one of the most common types of technologies used for wastewater management worldwide, especially in small cities and towns. They are particularly well-suited for systems where the effluent is reused for irrigation. However, the efficiency of virus removal in wastewater treatment pond systems is not very well understood. The main objective of this paper is to critically review the major findings related to virus removal in wastewater treatment pond systems and to statistically analyze results reported in the literature from field studies on virus removal in these systems. A comprehensive analysis of virus removal reported in the literature from 71 different wastewater treatment pond systems reveals only a weak to moderate correlation of virus removal with theoretical hydraulic retention time. On average, one log10 reduction of viruses was achieved for every 14.5-20.9 days of retention, but the 95th percentile value of the data analyzed was 54 days. The mechanisms responsible for virus removal in wastewater treatment ponds were also reviewed. One recent finding is that sedimentation may not be a significant virus removal mechanism in some wastewater ponds. Recent research has also revealed that direct and indirect sunlight-mediated mechanisms are not only dependent on pond water chemistry and optics, but also on the characteristics of the virus and its genome. MS2 coliphage is considered to be the best surrogate for studying sunlight disinfection in ponds. The interaction of viruses with particles, with other microorganisms, and with macroinvertebrates in wastewater treatment ponds has not been extensively studied. It is also unclear whether virus internalization by higher trophic-level organisms has a protective or a detrimental effect on virus viability and transport in pond systems. Similarly, the impact of virus-particle associations on sunlight disinfection in ponds is not well understood. Future research should focus on

  14. 78 FR 8217 - Social Security Ruling, SSR 13-1p; Titles II and XVI: Agency Processes for Addressing Allegations...

    Science.gov (United States)

    2013-02-05

    ... SOCIAL SECURITY ADMINISTRATION [Docket No. SSA-2012-0071] Social Security Ruling, SSR 13-1p; Titles II and XVI: Agency Processes for Addressing Allegations of Unfairness, Prejudice, Partiality, Bias... the third column, the fourth line under the ``Summary'' heading, change ``SSR-13-Xp'' to ``SSR-13-1p...

  15. Can terraced pond wetland systems improve urban watershed water quality?

    Science.gov (United States)

    Li, S.; Ho, M.; Flanagan, N. E.; Richardson, C. J.

    2017-12-01

    Properly built constructed wetlands are a more economic and efficient way of wastewater treatment compared with traditional methods, although their mechanisms are far from completely understood. As part of the Stream and Wetland Assessment Management Park (SWAMP), which is aimed to improve the water quality of downstream and thereby enhance watershed ecosystem services, a terraced three-pond wetland system was created near Duke University in 2014. This project is expected to promote the retention and settling of pollutants and sediment before runoffs enter downstream flow. The goal of this study is to examine: (1) whether a terraced pond wetland system improves water quality, during both baseline (low flow) and storm events (high flow), which increases pollutant inputs; and (2) how this system functions to remove pollutants, namely what components of this system (plant, soil or water) increase or decrease the level of pollutants. By analyzing a dataset consisting of more than four-year monthly samplings from Pond 1 (first pond in the system) and Pond 3 (last pond in the system), we found that the pond system has reduced total suspended solids (TSS) but only when elevated inputs occur. Dissolved oxygen (DO) is closely related to temperature and macrophytes growth; whereas acidity (pH), total nitrogen (TN), and total phosphorus (TP) did not show retention in the early stages of the system development. This system reaches its optimum for reducing TSS at the second pond, but the third pond has important effects on DO, pH, TN and TP. A monitoring in 2017 shows this pond system significantly reduces TSS while increasing dissolved oxygen and neutralizing pH after a storm event; although greater variations incurred within the system as time progresses after storm, overall retention function remained valid. Retention of the pollutants is primarily accomplished by the settling process, which occurs in stilled waterbody of the ponds and by the filtration of macrophytes. We

  16. EU coordination of national social security in multiple cross border situations

    NARCIS (Netherlands)

    Cremers, J.

    2011-01-01

    The coordination of the national social security is one of the crucial fields of cooperation between EU Member States. The coordination is based on the principle of application of one legislation at a time in cases of employment being executed in one or more than one Member State. Persons moving

  17. Relationship Between Accumulation and Influx of Pollutants in Highway Ponds

    DEFF Research Database (Denmark)

    Bentzen, Thomas Ruby; Larsen, Torben; Rasmussen, Michael R.

    The paper discusses the long term mass balance of pollutants in highway ponds. The accumulations of five polycyclic aromatic hydrocarbons (PAHs) and six heavy metals have been measured in eight Danish detention ponds, which receive runoff from highways only. For each pollutant the accumulation has...... been compared to the long-term influx, estimated from short-term measurements of concentrations in highway runoff. The results show that a large proportion of the incoming heavy metals in short-term runoff events has accumulated in the ponds. This is not the case for the toxic organic compounds....... The results also show that the accumulation rates for the heavy metals depend significantly on the relative pond area (pond area divided by catchment area). The conclusion is that the mass balances of heavy metals and PAHs in highway ponds can be estimated with acceptable accuracy from a combination of short...

  18. Emissions from Produced Water Treatment Ponds, Uintah Basin, Utah, USA

    Science.gov (United States)

    Mansfield, M. L.; Lyman, S. N.; Tran, H.; O'Neil, T.; Anderson, R.

    2015-12-01

    An aqueous phase, known as "produced water," usually accompanies the hydrocarbon fluid phases that are extracted from Earth's crust during oil and natural gas extraction. Produced water contains dissolved and suspended organics and other contaminants and hence cannot be discharged directly into the hydrosphere. One common disposal method is to discharge produced water into open-pit evaporation ponds. Spent hydraulic fracturing fluids are also often discharged into the same ponds. It is obvious to anyone with a healthy olfactory system that such ponds emit volatile organics to the atmosphere, but very little work has been done to characterize such emissions. Because oil, gas, and water phases are often in contact in geologic formations, we can expect that more highly soluble compounds (e.g., salts, alcohols, carbonyls, carboxyls, BTEX, etc.) partition preferentially into produced water. However, as the water in the ponds age, many physical, chemical, and biological processes alter the composition of the water, and therefore the composition and strength of volatile organic emissions. For example, some ponds are aerated to hasten evaporation, which also promotes oxidation of organics dissolved in the water. Some ponds are treated with microbes to promote bio-oxidation. In other words, emissions from ponds are expected to be a complex function of the composition of the water as it first enters the pond, and also of the age of the water and of its treatment history. We have conducted many measurements of emissions from produced water ponds in the Uintah Basin of eastern Utah, both by flux chamber and by evacuated canister sampling with inverse modeling. These measurements include fluxes of CO2, CH4, methanol, and many other volatile organic gases. We have also measured chemical compositions and microbial content of water in the ponds. Results of these measurements will be reported.

  19. Pond dyes are Culex mosquito oviposition attractants

    Directory of Open Access Journals (Sweden)

    Natali Ortiz Perea

    2017-05-01

    Full Text Available Background British mosquito population distribution, abundance, species composition and potential for mosquito disease transmission are intimately linked to the physical environment. The presence of ponds and water storage can significantly increase the density of particular mosquito species in the garden. Culex pipiens is the mosquito most commonly found in UK gardens and a potential vector of West Nile Virus WNV, although the current risk of transmission is low. However any factors that significantly change the distribution and population of C. pipiens are likely to impact subsequent risk of disease transmission. Pond dyes are used to control algal growth and improve aesthetics of still water reflecting surrounding planting. However, it is well documented that females of some species of mosquito prefer to lay eggs in dark water and/or containers of different colours and we predict that dyed ponds will be attractive to Culex mosquitoes. Methods Black pond dye was used in oviposition choice tests using wild-caught gravid C. pipiens. Larvae from wild-caught C. pipiens were also reared in the pond dye to determine whether it had any impact on survival. An emergence trap caught any adults that emerged from the water. Water butts (80 L were positioned around university glasshouses and woodland and treated with black pond dye or left undyed. Weekly sampling over a six month period through summer and autumn was performed to quantified numbers of larvae and pupae in each treatment and habitat. Results Gravid female Culex mosquitoes preferred to lay eggs in dyed water. This was highly significant in tests conducted under laboratory conditions and in a semi-field choice test. Despite this, survivorship in black dyed water was significantly reduced compared to undyed water. Seasonal analysis of wild larval and pupal numbers in two habitats with and without dye showed no impact of dye but a significant impact of season and habitat. Mosquitoes were more

  20. Social Information Processing, Security of Attachment, and Emotion Regulation in Children with Learning Disabilities

    Science.gov (United States)

    Bauminger, Nirit; Kimhi-Kind, Ilanit

    2008-01-01

    This study examined the contribution of attachment security and emotion regulation (ER) to the explanation of social information processing (SIP) in middle childhood boys with learning disabilities (LD) and without LD matched on age and grade level. Children analyzed four social vignettes using Dodge's SIP model and completed the Kerns security…

  1. Morphology-dependent water budgets and nutrient fluxes in arctic thaw ponds

    Science.gov (United States)

    Koch, Joshua C.; Gurney, Kirsty; Wipfli, Mark S.

    2014-01-01

    Thaw ponds on the Arctic Coastal Plain of Alaska are productive ecosystems, providing habitat and food resources for many fish and bird species. Permafrost in this region creates unique pond morphologies: deep troughs, shallow low-centred polygons (LCPs) and larger coalescent ponds. By monitoring seasonal trends in pond volume and chemistry, we evaluated whether pond morphology and size affect water temperature and desiccation, and nitrogen (N) and phosphorus (P) fluxes. Evaporation was the largest early-summer water flux in all pond types. LCPs dried quickly and displayed high early-summer nutrient concentrations and losses. Troughs consistently received solute-rich subsurface inflows, which accounted for 12 to 42 per cent of their volume and may explain higher P in the troughs. N to P ratios increased and ammonium concentrations decreased with pond volume, suggesting that P and inorganic N availability may limit ecosystem productivity in older, larger ponds. Arctic summer temperatures will likely increase in the future, which may accelerate mid-summer desiccation. Given their morphology, troughs may remain wet, become warmer and derive greater nutrient loads from their thawing banks. Overall, seasonal- to decadal-scale warming may increase ecosystem productivity in troughs relative to other Arctic Coastal Plain ponds

  2. Continuous Hydrologic and Water Quality Monitoring of Vernal Ponds.

    Science.gov (United States)

    Mina, Odette; Gall, Heather E; Chandler, Joseph W; Harper, Jeremy; Taylor, Malcolm

    2017-11-13

    Vernal ponds, also referred to as vernal pools, provide critical ecosystem services and habitat for a variety of threatened and endangered species. However, they are vulnerable parts of the landscapes that are often poorly understood and understudied. Land use and management practices, as well as climate change are thought to be a contribution to the global amphibian decline. However, more research is needed to understand the extent of these impacts. Here, we present methodology for characterizing a vernal pond's morphology and detail a monitoring station that can be used to collect water quantity and quality data over the duration of a vernal pond's hydroperiod. We provide methodology for how to conduct field surveys to characterize the morphology and develop stage-storage curves for a vernal pond. Additionally, we provide methodology for monitoring the water level, temperature, pH, oxidation-reduction potential, dissolved oxygen, and electrical conductivity of water in a vernal pond, as well as monitoring rainfall data. This information can be used to better quantify the ecosystem services that vernal ponds provide and the impacts of anthropogenic activities on their ability to provide these services.

  3. Social Security System in India: An International Comparative Analysis

    OpenAIRE

    Jha, Rupak Kumar; Bhattacharyya, Surajit

    2010-01-01

    This paper examines selected components of social security system in India and compares them with their OECD counterparts. Historically, the Indian policy makers have viewed the pension system as a welfare measure and therefore, it lacks in financial professionalism, diversification, and in the belief that pension funds can also be treated as an asset. The Indian system is biased towards the organized formal sector as workers in this sector are benefitted with the provisions under various lab...

  4. Pond dynamics and supraglacial-englacial connectivity on debris-covered Lirung Glacier

    Science.gov (United States)

    Miles, Evan S.; Steiner, Jakob; Willis, Ian; Buri, Pascal; Immerzeel, Walter W.; Chesnokova, Anna; Pellicciotti, Francesca

    2017-09-01

    The hydrological systems of heavily-downwasted debris-covered glaciers differ from clean-ice glaciers due to the hummocky surface and debris mantle of such glaciers, leading to a relatively limited understanding of drainage pathways. Supraglacial ponds represent sinks within the discontinuous supraglacial drainage system, and have been documented to sporadically drain englacially. To assess pond dynamics, pond water level measurements were made on Lirung Glacier during May and October of 2013 and 2014. The four field seasons coincided with aerial, satellite, and terrestrial orthomosaic images and digital elevation models, which provided snapshots of the ponds and their surroundings. We analysed the glacier's closed surface catchments to identify surface drainage pathways and englacial drainage points, and compared this to field observations of surface discahrge. The ponded area was higher in the pre-monsoon than post-monsoon, with individual ponds filling and draining seasonally associated with the surface exposure of englacial conduit segments. We recorded four pond drainage events, all of which occurred gradually (duration of weeks), observed diurnal fluctuations indicative of varying supply and discharge, and we documented instances of interaction between distant ponds. The DEM drainage analysis identified numerous sinks >3m across the glacier surface, few of which exhibited ponds (23%), while the field survey highlighted surface discharge only explicable via englacial routes. Taken together our observations provide evidence for widespread supraglacial-englacial connectivity for meltwater drainage paths. Results suggest that progressive englacial conduit collapse events, themselves likely driven by supraglacial pond drainage, enable the glacier surface to evolve into a configuration following relict englacial conduit systems. Within this system, ponds form in depressions of reduced drainage efficiency and link the supraglacial and englacial drainage networks.

  5. Flexicurity as a measuring leakage protection of workers: between "social pollution" and "total security".

    Directory of Open Access Journals (Sweden)

    Calogero Massimo Cammalleri

    2012-01-01

    Full Text Available Was not the labour problem the same everywhere? The paper at­tempts to answer this question by proposing a re-interpretation of flexicurity through the comparison with the economic concepts of externalities and distortion of competition. After a methodological and epistemological premise, based on a multidisciplinary literature, the paper - crit­ically addresses the origins of flexicurity and argues that it lacks an archetypical definition, especially in the formulation of the EU Commission. Hence, the paper considers flexicurity as any balance between flexibility and security and, therefore, pro­poses ordering any set of contracts, providing the same balance and with the same regulatory framework, in “communities”. It is assumed, therefore, that communities can differ either in terms of a “protective” trade­-off, where the differential is not a surrogate measure of security, or in terms of an economic trade-off, where it is met by the provision of social insurance or security. One of these sets is called community 0 and it corresponds to undeclared work, not only illegal, but also completely devoid of security and fully flexible. After identifying from ILO, EU and constitutional sources the foundation of the “incompressibility” of rights which guarantee decent work, the paper likens decent work to a public good of general interest, in the same way as laws generally recognize the natural environment. On the basis of this comparative axiom, the paper proposes considering the dispersion of security produced by undeclared work as “un-decent” work and, therefore, as a form of “pollution”. The paper proposes, conversely, to define as a “total secure” environment one where there is no loss of se­curity and, therefore, a non-polluted environment. Because an environment can be little or very polluted, the paper proposes considering as social pollution any form, even legal, of security leakage - such as that induced by the

  6. FROM PONDS TO MAN-MADE SEAS IN RUSSIA

    Directory of Open Access Journals (Sweden)

    Sergey Gorshkov

    2013-01-01

    Full Text Available Russia has more than 2200 reservoirs and large ponds. As time went by, ponds lost their importance in some aspects of human life, while newly created man-made seas impacted the nature and the people in two ways. The costs involved in designing, constructing, and operating the artificial seas, especially on the plains, have been too high to consider them as an undisputed achievement of the Soviet scientists transforming the nature. This paper discusses the problem of ponds and man-made seas in Russia.

  7. [Studies on nitrogen, phosphorus and organic matter in ponds around Chaohu Lake].

    Science.gov (United States)

    Sun, Qing-ye; Ma, Xiu-ling; Yang, Gui-de; Chen, Zheng; Wu, Hong-lin; Xuan, Huai-xiang

    2010-07-01

    There are a lot of ponds around Chaohu Lake. According to location and runoff supply of ponds, the ponds are divided into three types: ponds inner vellage (PIV), ponds adjacent vellage (PAV) and ponds outer vellage (POV). The samples of water and sediment were collected from 136 ponds around Chaohu Lake and the contents of nitrogen, phosphorus and organic matter in water and sediments were analyzed in this study. The results showed that mean contents of total nitrogen (TN), NH4+ -N, NO3- -N, NO2- -N, total phosphorus (TP), soluble PO4(3-) -P and COD were 2.53, 0.65, 0.18, 0.02, 0.97, 0.38 and 51.58 mg x L(-1) in pond water, respectively; and mean contents of TN, NH4+ -N, NO3- -N, NO2- -N, TP, inorganic phosphorus (IP), organic phosphorus (OP) and loss of ignition (LOI) in pond sediment were 1575.36, 35.73, 13.30, 2.88, 933.19, 490.14, 414.75 mg x kg(-1) and 5.44%, respectively. The ponds of more than 90% presented eutrophication in the contents of total nitrogen and phosphorus in water. The contents of TN and NH4+ -N in water and sediment of PIV were significantly higher than that of POV. And the contents of inorganic nitrogen in pond water and sediment displayed a following order: NH4+ -N > NO3- -N > NO2- -N. Data analysis indicated that there was a significantly positive correlation between organic matter and total nitrogen and phosphorus in water and sediment. The nitrogen, phosphorus and organic matter in ponds mainly sourced farmlands and village land surface. The contents of nitrogen, phosphorus and organic matter in ponds were affected by location and runoff supply of ponds. By retaining nitrogen, phosphorus and organic matter in runoff, the ponds can effectively decrease nutrient content into Chaohu Lake.

  8. Geochemistry of the Upper Parana River floodplain. Study of the Garcas Pond and Patos Pond

    International Nuclear Information System (INIS)

    Marcelo Bevilacqua Remor; Silvio Cesar Sampaio; Marcio Antonio Vilas Boas; Ralpho Rinaldo dos Reis

    2015-01-01

    The aim of this study was to investigate the temporal evolution of the supply of chemical elements to the Upper Parana River floodplain and identify trends in the geochemistry of its drainage basin. The primary factor that regulates the supply of chemical elements of the Upper Parana River floodplain is the flood pulse, which can be magnified by the El Nino-Southern Oscillation. Garcas Pond is affected by agriculture, urbanization, discharge of industrial effluents and hydroelectric power production activities. Patos Pond is affected by sugarcane burning, gold mining, agriculture and urbanization. (author)

  9. Poorly known microbial taxa dominate the microbiome of permafrost thaw ponds.

    Science.gov (United States)

    Wurzbacher, Christian; Nilsson, R Henrik; Rautio, Milla; Peura, Sari

    2017-08-01

    In the transition zone of the shifting permafrost border, thaw ponds emerge as hotspots of microbial activity, processing the ancient carbon freed from the permafrost. We analyzed the microbial succession across a gradient of recently emerged to older ponds using three molecular markers: one universal, one bacterial and one fungal. Age was a major modulator of the microbial community of the thaw ponds. Surprisingly, typical freshwater taxa comprised only a small fraction of the community. Instead, thaw ponds of all age classes were dominated by enigmatic bacterial and fungal phyla. Our results on permafrost thaw ponds lead to a revised perception of the thaw pond ecosystem and their microbes, with potential implications for carbon and nutrient cycling in this increasingly important class of freshwaters.

  10. Risk perception and environmental health concerns in conditions of social security threat

    International Nuclear Information System (INIS)

    Kolarova, D.

    1998-01-01

    Full text of publication follows: this study explores the connection between the perception of different societal risk, health concerns and behavioral attitudes of people in condition of social security threat. Two small and two big industrial towns were chosen in order to observe the social and psychological price of the structural changes in the industry such as unemployment and its reflection on the households and the individuals' social attitudes. Key stakeholders were interviewed and questionnaire survey was carried out. The results showed high level of risk sensitivity and health concerns when people felt threatened by lack of social and economic security. The pollution was found to be important problem when it caused direct and obvious risk to human health and the environment. In the same time reverse environmental behavior like insensitiveness and neglectful attitude was observed in cases when the health consequences of the pollution were perceived to be unclear and with delayed effect. In situation of a great socio-economic threat noninvolvement helped the individuals to adapt. The research proved the influence of several risk characteristics on risk perception. It was found a connection between the risk perception and risk controllability, voluntariness of exposure and cost/benefits distribution. In the study areas respondents' judgments on these characteristics reflected directly their social status and material state. The study presented here is in progress - it i's supported by research grant from Open Society Foundation. (author)

  11. Effects of employer-sponsored health insurance costs on Social Security taxable wages.

    Science.gov (United States)

    Burtless, Gary; Milusheva, Sveta

    2013-01-01

    The increasing cost of employer contributions for employee health insurance reduces the share of compensation subject to the Social Security payroll tax. Rising insurance contributions can also have a more subtle effect on the Social Security tax base because they influence the distribution of money wages above and below the taxable maximum amount. This article uses the Medical Expenditure Panel Survey to analyze trends in employer health insurance contributions and the distribution of those costs up and down the wage distribution. Our analysis shows that employer health insurance contributions increased faster than overall compensation during 1996-2008, but such contributions grew only slightly faster among workers earning less than the taxable maximum than they did among those earning more. Because employer health insurance contributions represent a much higher percentage of compensation below the taxable maximum, health insurance cost trends exerted a disproportionate downward pressure on money wages below the taxable maximum.

  12. Surface and subsurface soils at the Pond B dam: July 1998

    International Nuclear Information System (INIS)

    Halverson, N.V.

    1999-01-01

    Pond B, 685-13G, is an inactive reactor cooling impoundment built in 1961 on the Savannah River Site (SRS). Between 1961 and 1964, Pond B received R-Reactor cooling water discharges that were contaminated with 137 Cs, 90 Sr and plutonium. Though the pond has not been used since 1964, radionuclides from the contaminated cooling water remain in the water and in the surface sediments of the pond. The current proposal to fix and repair the Pond B dam structure includes installing a new drain system and monitoring equipment. The dam will be reinforced with additional previous material on the downstream face of the dam. The objectives of this report are to describe the sampling methodology used during the July 1998 sampling event at the downstream face of the Pond B dam and in Pond B, present the results of the sampling event, and compare, where possible, these results to related risk-based standards

  13. Seasonality of dipteran-mediated methylmercury flux from ponds.

    Science.gov (United States)

    Chumchal, Matthew M; Drenner, Ray W; Hall, MacGregor N; Polk, D Kirkland; Williams, Edward B; Ortega-Rodriguez, Celeste L; Kennedy, James H

    2018-03-12

    Methylmercury (MeHg) is an aquatic contaminant that can be transferred to terrestrial predators by emergent aquatic insects. We assessed the effects of month and pond permanence on dipteran-mediated MeHg flux (calculated as emergent dipteran biomass × dipteran MeHg concentration) in 10 experimental ponds. Emergent dipterans were collected weekly from permanent ponds with bluegill (Lepomis macrochirus; n = 5) and semipermanent ponds without fish (n = 5) over a 7-mo period (February-August, 2015). We detected a significant effect of month on MeHg flux from 6 dipteran taxa and aggregate MeHg flux, with the highest MeHg flux from herbivorous/detritivorous chironomid midges and predatory midges in March; biting midges, phantom midges and herbivorous/detritivorous orthoclad midges in April; and mosquitoes in August. Aggregate dipteran-mediated MeHg flux peaked in April and then declined throughout the remainder of the summer. We did not detect a significant main effect of pond permanence or a significant month × pond permanence interaction effect on MeHg flux for any of the taxa examined in the present study or for aggregate MeHg flux. Given their ubiquity in aquatic systems and their importance in food webs at the land-water interface, dipterans are important taxa that should not be overlooked as a part of the Hg cycle. Environ Toxicol Chem 2018;9999:1-6. © 2018 SETAC. © 2018 SETAC.

  14. Comparison of hydraulics and particle removal efficiencies in a mixed cell raceway and Burrows pond rearing system

    Science.gov (United States)

    Moffitt, Christine M.

    2016-01-01

    We compared the hydrodynamics of replicate experimental mixed cell and replicate standard Burrows pond rearing systems at the Dworshak National Fish Hatchery, ID, in an effort to identify methods for improved solids removal. We measured and compared the hydraulic residence time, particle removal efficiency, and measures of velocity using several tools. Computational fluid dynamics was used first to characterize hydraulics in the proposed retrofit that included removal of the traditional Burrows pond dividing wall and establishment of four counter rotating cells with appropriate drains and inlet water jets. Hydraulic residence time was subsequently established in the four full scale test tanks using measures of conductivity of a salt tracer introduced into the systems both with and without fish present. Vertical and horizontal velocities were also measured with acoustic Doppler velocimetry in transects across each of the rearing systems. Finally, we introduced ABS sinking beads that simulated fish solids then followed the kinetics of their removal via the drains to establish relative purge rates. The mixed cell raceway provided higher mean velocities and a more uniform velocity distribution than did the Burrows pond. Vectors revealed well-defined, counter-rotating cells in the mixed cell raceway, and were likely contributing factors in achieving a relatively high particle removal efficiency-88.6% versus 8.0% during the test period. We speculate retrofits of rearing ponds to mixed cell systems will improve both the rearing environments for the fish and solids removal, improving the efficiency and bio-security of fish culture. We recommend further testing in hatchery production trials to evaluate fish physiology and growth.

  15. Effect of fish farming on household food security in western Kenya ...

    African Journals Online (AJOL)

    This study examined the impact of fish farming on household food security and livelihoods of fish farming and non-fish farming households in Siaya County. Fish farming involves raising fish commercially in tanks or enclosures, usually for food. Currently fish farming remains under developed in Western Kenya where pond ...

  16. Aquatic biodiversity in sedimentation ponds receiving road runoff - What are the key drivers?

    Science.gov (United States)

    Sun, Zhenhua; Brittain, John E; Sokolova, Ekaterina; Thygesen, Helene; Saltveit, Svein Jakob; Rauch, Sebastien; Meland, Sondre

    2018-01-01

    Recently, increased attention has been paid to biodiversity conservation provided by blue-green solutions such as engineered ponds that are primarily established for water treatment and flood control. However, little research has been done to analyse the factors that affect biodiversity in such ponds. The purpose of this study was to evaluate the influence of environmental factors on aquatic biodiversity, mainly macroinvertebrate communities, in road sedimentation ponds in order to provide a foundation for recommendations on aquatic biodiversity conservation. Multivariate statistical methods, including unconstrained and constrained analysis, were applied to examine the relationships between organisms and the water quality as well as physical factors (including plant cover). Stepwise multiple regressions indicated that the most important variables governing the variation in the biological community composition were pond size, average annual daily traffic, metals, chloride, distance to the closest pond from study pond, dissolved oxygen, hydrocarbons, and phosphorus. The presence of most taxa was positively correlated with pond size and negatively correlated with metals. Small ponds with high pollutant loadings were associated with a low diversity and dominated by a few pollution tolerant taxa such as oligochaetes. A comprehensive understanding of impacts of various environmental factors on aquatic biodiversity is important to effectively promote and conserve aquatic biodiversity in such sedimentation ponds. Our results indicate that road sedimentation ponds should be designed large enough, because large ponds are likely to provide a more heterogeneous habitat and thus contain a species rich fauna. In addition, larger ponds seem to be less contaminated due to dilution compared to smaller ponds, thereby maintaining a higher biodiversity. Finally, creating some additional ponds in the vicinity of the sedimentation ponds in areas with few water bodies would increase the

  17. Monthly and diurnal variations of limnological conditions of two ponds

    Directory of Open Access Journals (Sweden)

    AKM Fazlur Rahaman

    2017-06-01

    Full Text Available A study on monthly and diurnal changes of limnological conditions of two ponds was conducted in the Bangladesh Agricultural University campus, Mymensingh. The research work was performed by studying the limnological parameters such as transparency, temperature, dissolved oxygen, free carbon dioxide, pH, total alkalinity, nitrate-nitrogen, phosphate-phosphorus and plankton. Diurnal variations of physico-chemical factors were studied fortnightly at 6 hrs intervals at 6 a.m., 12 noon, 6 p.m. and 12 midnight. The amounts of transparency, dissolved oxygen and pH were higher during winter months than in summer months in both the ponds. Transparency, water temperature, total alkalinity, NO3-N and PO4-P were higher during summer months than in winter months in both the ponds. But the amount of free carbon dioxide was higher during winter months than in summer months in pond 1 while in pond 2 the amount of free carbon dioxide was higher during summer months than in winter months. Qualitative and quantitative monthly variations of phytoplankton and zooplankton were observed in both the ponds during the study period. The highest amount of dissolved oxygen, pH and total alkalinity were recorded at 6 p.m. and the lowest amounts of those at 6 a.m. in both the ponds. The highest temperature was recorded at 12 noon and the lowest at 12 midnight. But the highest amount of free carbon dioxide was recorded at 6 a.m. and the lowest at 6 p.m. in both the ponds. All the factors showed appreciable diel variations throughout the study period, which indicate that the ponds are productive.

  18. A mathematical procedure to estimate solar absorptance of shallow water ponds

    International Nuclear Information System (INIS)

    Wu Hongbo; Tang Runsheng; Li Zhimin; Zhong Hao

    2009-01-01

    In this article, a mathematical procedure is developed for estimating solar absorption of shallow water ponds with different pond floor based on the fact that the solar radiation trapped inside the water layer undergoes multiplicative reflection and absorption and on that the solar absorption of water is selective. Theoretical model indicates that the solar absorption of a water pond is related to the reflectivity of the pond floor, the solar spectrum and the water depth. To validate the mathematical model, a concrete water pond measuring 3 x 3 x 0.24 m was constructed. Experimental results indicate that solar reflectivity calculated based on the mathematical model proposed in this work were in good agreement with those measured. For water ponds with a water-permeable floor, such as concrete floor, theoretical calculations of the solar absorptance of a water pond should be done based on the reflectivity of full wet floor, whereas for water ponds with a non-water-permeable floor, theoretical calculations should be done based on the fact that solar reflection on the floor is neither perfect specular reflection nor prefect isotropic diffuse reflection. Results of numerical calculation show that theoretical calculations of solar absorption of a water pond by dividing solar spectrum into six bands were pretty agreement with those by dividing solar spectrum into 20 bands.

  19. The social security scheme in Thailand: what lessons can be drawn?

    Science.gov (United States)

    Tangcharoensathien, V; Supachutikul, A; Lertiendumrong, J

    1999-04-01

    The Social Security Scheme was launched in 1990, covering formal sector private employees for non-work related sickness, maternity and invalidity including cash benefits and funeral grants. The scheme is financed by tripartite contributions from government, employers and employees, each of 1.5% of payroll (total of 4.5%). The scheme decided to pay health care providers, whether public or private, on a flat rate capitation basis to cover both ambulatory and inpatient care. Registration of the insured with a contractor hospital was a necessary consequence of the chosen capitation payment system. The aim of this paper is to review the operation of the scheme, and to explore the implications of capitation payment and registration for utilisation levels and provider behaviour. A key weakness of the scheme's design is suggested to be the initial decision to give employers not employees the responsibility for choosing the registered hospitals. This was done for administrative reasons, but it contributed to low levels of use of the contractor hospitals. In addition, low levels of use were also probably the result of the potential for cream skimming, cost shifting from inpatient to ambulatory care and under-provision of patient care, though since monitoring mechanisms by the Social Security Office were weak, these effects are difficult to detect conclusively. Mechanisms to improve utilisation levels were gradually introduced, such as employee choice of registered hospitals and the formation of sub-contractor networks to improve access to care. A beneficial effect of the capitation payment system was that the Social Security Fund generated substantial reserves and expenditures on sickness benefits were well stabilised. The paper ends by recommending that future policy amendments should be guided by research and empirical findings and that tougher monitoring and enforcement of quality of care standards are required.

  20. Avifauna of waste ponds ERDA Hanford Reservation, Benton County, Washington

    International Nuclear Information System (INIS)

    Fitzner, R.E.; Rickard, W.H.

    1975-06-01

    The presence of small ponds on the Hanford 200 Area plateau provides attractive habitats for birds. During a 29-month period, 126 bird species were observed utilizing these ponds, their associated vegetation, and air space. Waterfowls are the important agents of dispersal of radionuclides from waste ponds based on food habits, abundance, migratory habits, and importance as food in the diet of people. Abundance, long residence time, and food habits identify the American coot as the single most important species to be considered in the biological dispersal of radionuclides from waste ponds. (U.S.)

  1. Expanding Social Security in Indonesia: the Processes and Challenges

    OpenAIRE

    Asep Suryahadi; Vita Febriany; Athia Yumna

    2014-01-01

    This paper reviews the development of social security provision in Indonesia, which has evolved from very little in its early years to the privilege of formal sector workers during the New Order period to universal coverage, at least in principle, in the current period. These changes were in line with and driven by the developments of the Indonesian economy in general, which has gone through various episodes marked by both booms and crises. There are two important milestones in the developmen...

  2. From Parent-Child Mutuality to Security to Socialization Outcomes: Developmental Cascade toward Positive Adaptation in Preadolescence

    Science.gov (United States)

    Kim, Sanghag; Boldt, Lea J.; Kochanska, Grazyna

    2016-01-01

    A developmental cascade from positive early parent-child relationship to child security with the parent to adaptive socialization outcomes, proposed in attachment theory and often implicitly accepted but rarely formally tested, was examined in 100 mothers, fathers, and children followed from toddler age to preadolescence. Parent-child Mutually Responsive Orientation (MRO) was observed in lengthy interactions at 38, 52, 67, and 80 months; children reported their security with parents at age 8. Socialization outcomes (parent- and child-reported cooperation with parental monitoring and teacher-reported school competence) were assessed at age 10. Mediation was tested with PROCESS (Hayes, 2013). The parent-child history of MRO significantly predicted both mother-child and father-child security. For mother-child dyads, security mediated links between history of MRO and cooperation with maternal monitoring and school competence, controlling for developmental continuity of the studied constructs. For father-child dyads, the mediation effect was not evident. PMID:26258443

  3. 26 CFR 1.31-2 - Credit for “special refunds” of employee social security tax.

    Science.gov (United States)

    2010-04-01

    ... security tax. 1.31-2 Section 1.31-2 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY INCOME TAX INCOME TAXES Credits Against Tax § 1.31-2 Credit for “special refunds” of employee social security tax. (a) In general. (1) In the case of an employee receiving wages from more than one employer...

  4. Distribution of transuranic elements in a freshwater pond ecosystem

    International Nuclear Information System (INIS)

    Emery, R.M.; Klopfer, D.C.

    1975-05-01

    Preliminary results are reported from a study initiated on the Hanford Reservation concerning the ecological behavior of 238 Pu, 239 Pu, 240 Pu, and 241 Am in a freshwater environment. This study involves a waste pond which has been receiving Pu processing wastes for about 30 years. The pond has a sufficiently established ecosystem to provide an excellent location for limnological characterization. In addition, the ecological distribution of Pu and Am was investigated. The pond is also highly enriched with nutrients, thus supporting a high level of algal and macrophyte production. Seston (30 percent diatoms) appears to be the principal concentrators of Pu transuranics in the pond system. The major sink for Pu and Am in this system is the sediments. Organic floc, overlaying the pond sediments, is also a major concentrator of transuranics in this system []Aside from the seston and floc, no other ecological components of the pond appear to have concentrations significantly greater than those of the sediment. Dragonfly, larvae, watercress, and snails show concentrations which approximate those of the sediments but nearly all other food web components have levels of Pu and Am which are lower than those of the sediments, thus, Pu and Am seem to be relatively immobile in the aquatic ecosystem. (CH)

  5. An improved smartcard for the South African Social Security Agency (SASSA): A proof of life based solution

    CSIR Research Space (South Africa)

    Mthethwa, Sthembile

    2016-12-01

    Full Text Available Conference on Information Science and Security, Pattaya, Thailand, 19 - 22 December 2016 An improved smartcard for the South African Social Security Agency (SASSA): A proof of life based solution Mthethwa, S. Barbour, G. Thinyane, M...

  6. Estimation of Melt Ponds over Arctic Sea Ice using MODIS Surface Reflectance Data

    Science.gov (United States)

    Ding, Y.; Cheng, X.; Liu, J.

    2017-12-01

    Melt ponds over Arctic sea ice is one of the main factors affecting variability of surface albedo, increasing absorption of solar radiation and further melting of snow and ice. In recent years, a large number of melt ponds have been observed during the melt season in Arctic. Moreover, some studies have suggested that late spring to mid summer melt ponds information promises to improve the prediction skill of seasonal Arctic sea ice minimum. In the study, we extract the melt pond fraction over Arctic sea ice since 2000 using three bands MODIS weekly surface reflectance data by considering the difference of spectral reflectance in ponds, ice and open water. The preliminary comparison shows our derived Arctic-wide melt ponds are in good agreement with that derived by the University of Hamburg, especially at the pond distribution. We analyze seasonal evolution, interannual variability and trend of the melt ponds, as well as the changes of onset and re-freezing. The melt pond fraction shows an asymmetrical growth and decay pattern. The observed melt ponds fraction is almost within 25% in early May and increases rapidly in June and July with a high fraction of more than 40% in the east of Greenland and Beaufort Sea. A significant increasing trend in the melt pond fraction is observed for the period of 2000-2017. The relationship between melt pond fraction and sea ice extent will be also discussed. Key Words: melt ponds, sea ice, Arctic

  7. Social Security and divorce or death benefits storyboard (S(2)D(2)BS): an interactive participant learning exercise.

    Science.gov (United States)

    Brown, Pamela Pitman

    2014-01-01

    Using the concept of an interactive or living storyboard, the author discusses the use of seven case narratives constructed for the sole purpose of teaching introductory gerontology or geriatric students about the distribution of Social Security benefits after spousal death. Additional information is included pertaining to Social Security benefits payable to divorced persons after the death of the former spouse, including the status of married same-sex couples. Narratives include representations of a male breadwinner model couple, a two-earner couple who have similar/dissimilar earnings prior to retirement, a divorced couple with a remarriage after a death, a gay couple with and without children, and a female primary breadwinner couple. Updated information from the Social Security Administration, as well as information on game preparation, scripts, and debriefing questions are included.

  8. The Societal Security Standardization Promotes Social Management Sdentification——Interview with Wang Zhongmin, President of CNIS

    Institute of Scientific and Technical Information of China (English)

    2012-01-01

    China Standardization:In February 2011,President Hu Jintao gave an important speech on the opening ceremony of the seminar of social management and its innovation for provincial and ministerial level leaders,stressing that the scientific level of social management must be raised and building a social management system with Chinese socialism charactetistics.Would you please talk about the role of the societal security standardization in improving the scientific social manageraent?

  9. Career Obsolescence and Social Security: Emerging Education Policy Issues in Law.

    Science.gov (United States)

    Sandow, Stuart A.

    This document is the second in a series of studies designed to examine the legal aspects of various potential educational problems in our society. This particular study deals with the case of a highly trained aerospace technician who sues the social security trust for loan benefits, arguing that he is economically disabled and has been retired by…

  10. National Security in the Nuclear Age. A Conference for State Social Studies Coordinators on Pre-Collegiate National Security Education (Washington, DC, June 26-July 1, 1983).

    Science.gov (United States)

    Trout, B. Thomas; And Others

    This conference report addresses education on national security and international relations in secondary school courses in the social studies. Main conclusions of the conference are: (1) Topics on national security should be added to the secondary school curriculum. (2) Current institutional and instructional settings are open to inclusion of…

  11. Distribution of transuranic elements in a freshwater pond ecosystem

    International Nuclear Information System (INIS)

    Emery, R.M.; Klopfer, D.C.

    1976-01-01

    During the past two years a unique study has been initiated on the Hanford Reservation concerning the ecological behavior of plutonium and americium in a freshwater environment. This study involves a waste pond which has been receiving occasional low-level plutonium processing wastes for about 30 years. The pond has a sufficiently established ecosystem to provide an excellent location for limnological characterization. In addition, the ecological distribution of plutonium and americium is being investigated. The purpose of this work is to explain plutonium and americium concentrations at specific ecological sites, important export routes out of the pond, and potential pathways to man. The pond is also highly enriched with nutrients, thus supporting a high level of algal and macrophyte production. Seston (30 percent diatoms) appears to be the principal concentrator of transuranics in the pond system. The major sink for plutonium and americium in this system is the sediments. Organic floc, overlaying the pond sediments, is also a major concentrator of transuranics in this system. Aside from the seston and floc, no other ecological components of the pond appear to have concentrations significantly greater than those of the sediment. Dragonfly larvae, watercress, and snails show concentrations which approximate those of the sediments but nearly all other food web components have levels of plutonium and americium which are lower than those of the sediments. Thus, plutonium and americium seem to be relatively immobile in the aquatic ecosystem. However, the role of algae as a potential mechanism for the long-range ecological transport of plutonium and americium will receive additional attention

  12. Yearly Data for Spoken Language Preferences of Social Security Disability Insurance Claimants (2011-2015)

    Data.gov (United States)

    Social Security Administration — This data set provides annual volumes for language preferences at the national level of individuals filing claims for ESRD Medicare benefits for federal fiscal years...

  13. Discussion on the source survey method in a natural evaporation pond

    International Nuclear Information System (INIS)

    Dai Xiaoshu; Fan Chengrong; Fu Yunshan

    2014-01-01

    A natural evaporation pond intended to be decommissioned. The survey of the pond focused on investigating radioactive contamination distribution and estimating the total amount of deposits in the pond, in order to provide support for subsequent decommissioning activities. Based on the source survey in the pond, this paper introduced how to implement radiation measurements and sampling (such as water and sediment) in the water. The movable work platform was built on the pond to facilitate sampling and measurement. In addition, a sludge sampler had been designed so as to accurately determine the amount of sampling and its depth. This paper also described the distribution of sampling points. (authors)

  14. Decontamination and decommissioning of the BORAX-V leach pond. Final report

    International Nuclear Information System (INIS)

    Smith, D.L.

    1985-01-01

    This report describes the decontamination and decommissioning (D and D) of the BORAX-V leach pond located at the Idaho National Engineering Laboratory (INEL). The leach pond became radioactively contaminated from the periodic discharge of low-level liquid waste during operation of the Boiling Water Reactor Experiments (BORAX) from 1954 to 1964. This report describes work performed to accomplish the D and D objectives of stabilizing the leach pond and preventing the spread of contamination. D and D of the BORAX-V leach pond consisted to backfilling the pond with clean soil, grading and seeding the area, and erecting a permanent marker to identify very low-level subsurface contamination

  15. Unionism, the Decision-Making Process and Social Security Reform in Brazil

    Directory of Open Access Journals (Sweden)

    Sidney Jard da Silva

    2016-08-01

    Full Text Available Despite the vast literature on social security reform there are relatively few studies that analyze the participation of representatives coming from the union movement in the decision-making process. This article aims to fill part of that gap in Brazilian academic production on unionism and public policy. In situations in which unionist representatives support the ruling party, does the union bloc tend to defend the specific interests of their base of social representation or to follow the guidance of the party coalition of which they are part? The study addresses this research problemby analyzing the participation of the union bloc in the decision-making process of a social security reform, Proposal of Amendment to the Constitution, Article 40 (PEC 40, during the first term of Luiz Inácio Lula da Silva's government. The main findings of the study confirm the thesis of party predominance. In an institutional political scenario in which party discipline prevails, unionist representatives and senators tend to follow the guidance of the party coalition even under contrary pressures from their electoral base. The research sheds light on the relations involved between the Executive and Legislative branches, in the process of changing public policy, in which a government considered to be allied imposes losses for specific sectors of the union base, notably the active and inactive public servants of the federal government, states and municipalities.

  16. Polycyclic aromatic hydrocarbon contamination in stormwater detention pond sediments in coastal South Carolina.

    Science.gov (United States)

    Weinstein, John E; Crawford, Kevin D; Garner, Thomas R

    2010-03-01

    The purpose of this study was to characterize the polycyclic aromatic hydrocarbon (PAH) contamination in the sediments of stormwater detention ponds in coastal South Carolina. Levels of the sum of PAH analytes were significantly higher in the sediments of commercial ponds compared to that of reference, golf course, low-density residential, and high-density residential ponds. Isomer ratio analysis suggested that the predominant source of PAHs were pyrogenic; however, many ponds had a PAH signature consistent with mixed uncombusted and combusted PAH sources. PAH levels in these sediments could be modeled using both pond drainage area and pond surface area. These results demonstrate that the sediment from most commercial ponds, and a few residential and golf course ponds, were moderately contaminated with PAHs. PAH levels in these contaminated ponds exceeded between 42% and 75% of the ecological screening values for individual PAH analytes established by US EPA Region IV, suggesting that they may pose a toxicological risk to wildlife.

  17. Limnological database for Par Pond: 1959 to 1980

    International Nuclear Information System (INIS)

    Tilly, L.J.

    1981-03-01

    A limnological database for Par Pond, a cooling reservoir for hot reactor effluent water at the Savannah River Plant, is described. The data are derived from a combination of research and monitoring efforts on Par Pond since 1959. The approximately 24,000-byte database provides water quality, primary productivity, and flow data from a number of different stations, depths, and times during the 22-year history of the Par Pond impoundment. The data have been organized to permit an interpretation of the effects of twenty years of cooling system operations on the structure and function of an aquatic ecosystem

  18. EXPERIMENTAL INVESTIGATION OF SOLAR POND PERFORMANCE IN KARABUK ENVIRONMENT

    Directory of Open Access Journals (Sweden)

    Mehmet ÖZKAYMAK

    2004-01-01

    Full Text Available The solar energy, one of the alternative energy sources, can be economically and cheaply and efficiently collected with solar ponds. In this study, varying concentrations of sodium carbonate dilution in the solar pond in terms of heat storage performance has been examined. Experiment apparatus has been located Zonguldak Karaelmas University Karabük Technical Education Faculty. Five experiments with different density levels have been done and the changes in the temperature and density have been presented graphically within the solar pond. The experiments show that the temperature difference between the bottom and top level of solar pond is max. 21 °C and the highest temperature in lower convective zone (LCZ has been measured as 49 °C.

  19. Prediction of local effects of proposed cooling ponds

    International Nuclear Information System (INIS)

    Hicks, B.B.

    1978-01-01

    A Fog Excess Water (FEW) Index has been shown to provide a good measure of the likelihood for steam fog to occur at specific cooling pond installations. The FEW Index is derived from the assumption that the surface boundary layer over a cooling pond will be strongly convective, and that highly efficient vertical transport mechanisms will result in a thorough mixing of air saturated at surface temperature with ambient air aloft. Available data support this assumption. An extension of this approach can be used to derive a simple indicator for use in predicting the formation of rime ice in the immediate downwind environs of a cooling pond. In this case, it is supposed that rime ice will be deposited whenever steam fog and sub-freezing surface temperatures are predicted. This provides a convenient method for interpreting pre-existing meteorological information in order to assess possible icing effects while in the early design stages of the planning process. However, it remains necessary to derive accurate predictions of the cooling pond water surface temperature. Once a suitable and proven procedure for this purpose has been demonstrated, it is then a simple matter to employ the FEW Index in evaluations of the relative merits of alternative cooling pond designs, with the purpose of minimizing overall environmental impact

  20. Lime application methods, water and bottom soil acidity in fresh water fish ponds

    Directory of Open Access Journals (Sweden)

    Queiroz Julio Ferraz de

    2004-01-01

    Full Text Available Although some methods for determining lime requirement of pond soils are available and commonly used, there is still no consensus on whether it is more effective to apply liming materials to the bottoms of empty ponds or to wait and apply them over the water surface after ponds are filled. There is also little information on how deep lime reacts in pond sediment over time, and whether the depth of reaction is different when liming materials are applied to the water or to the soil. Therefore, three techniques for treating fish ponds with agricultural limestone were evaluated in ponds with clayey soils at a commercial fish farm. Amounts of agricultural limestone equal to the lime requirement of bottom soils were applied to each of three ponds by: direct application over the pond water surface; spread uniformly over the bottom of the empty pond; spread uniformly over the bottom of the empty pond followed by tilling of the bottom. Effectiveness of agricultural limestone applications did not differ among treatment methods. Agricultural limestone also reacted quickly to increase total alkalinity and total hardness of pond water to acceptable concentrations within 2 weeks after application. The reaction of lime to increase soil pH was essentially complete after one to two months, and lime had no effect below a soil depth of 8 cm. Tilling of pond bottoms to incorporate liming materials is unnecessary, and tilling consumes time and is an expensive practice; filled ponds can be limed effectively.

  1. Treatment of pond sludge at the Rocky Flats Plant

    International Nuclear Information System (INIS)

    Wienand, J.; Tyler, R.; Baldwin, C.

    1992-01-01

    The treatment of low-level radioactive/hazardous materials sludges from five inactive solar evaporation settling ponds at the Rocky Flats Plant is discussed. The paper presents information on the following topics: history of the ponds; previous pond cleanout activities; current approach to the problem with respect to water management, sludge management, regulatory actions, and disposal; and future processing technology needs in the areas of polymer solidification, microwave solidification, joule-heated glass melters, and advanced technology incineration

  2. Social Security Reform and Population Ageing in a Two-Sector Growth Model

    NARCIS (Netherlands)

    van Groezen, B.J.A.M.; Meijdam, A.C.; Verbon, H.A.A.

    2002-01-01

    This paper analyses the effects of reducing unfunded social security and population ageing on economic growth and welfare, both for a small open economy and for a closed economy.The economy consists of a service sector and a commodity sector.Productivity growth only occurs in the latter sector and

  3. Social security reform in a dynastic life-cycle model with endogenous fertility

    Czech Academy of Sciences Publication Activity Database

    Boháček, Radim; Belush, Volha

    -, č. 381 (2009), s. 1-51 ISSN 1211-3298 R&D Projects: GA AV ČR IAA700850702 Institutional research plan: CEZ:AV0Z70850503 Keywords : fertility * social security * fiscal policy * public expenditures * taxation Subject RIV: AH - Economics http://www.cerge-ei.cz/pdf/wp/Wp381.pdf

  4. Dynamics of Hexavalent Chromium in Four Types of Aquaculture Ponds and Its Effects on the Morphology and Behavior of Cultured Clarias gariepinus (Burchell 1822).

    Science.gov (United States)

    Mustapha, Moshood Keke

    2017-04-01

    Hexavalent chromium is a bio accumulative toxic metal in water and fish. It enters aquaculture ponds mainly through anthropogenic sources. Hexavalent chromium concentrations and its effects on the morphology and behavior of Clarias gariepinus were investigated from four aquaculture ponds for 12 weeks. Chromium was measured using diphenyl carbohdrazide method; alkalinity and hardness were measured using colometric method and analyzed with Bench Photometer. Temperature and pH were measured using pH/EC/TDS/Temp combined tester. Temporal and spatial replications of samples were done with triplicates morphological and behavioural effects of the metal on fish were observed visually. Chromium ranged from no detection to 0.05 mg/L, alkalinity 105 to 245 mg/L, hardness 80 to 165 mg/L, pH 6.35 to 8.03 and temperature 29.1 to 35.9°C. Trend in the chromium concentrations in the ponds is natural > earthen > concrete > collapsible. There was a significant difference ( P temperature among the four ponds. Significant positive correlation also existed between alkalinity, water hardness, pH, with chromium. Morphological and behavioural changes observed in the fish include irregular swimming, frequent coming to the surface, dark body colouration, mucous secretion on the body, erosion of gill epithelium, fin disintegration, abdominal distension and lethargy. High chromium concentration in natural pond was due to anthropogenic run-off of materials in to the pond. Acidic pH, low alkalinity, low water hardness also contributed to the high chromium concentration. Morphological and behavioural changes observed were attributed to the high concentrations, toxicity and bio accumulative effect of the metal. Toxicity of chromium to fish in aquaculture could threaten food security. Watershed best management practices and remediation could be adopted to reduce the effects of toxicity of chromium on pond water quality, fish flesh quality and fish welfare.

  5. Interconnected ponds operation for flood hazard distribution

    Science.gov (United States)

    Putra, S. S.; Ridwan, B. W.

    2016-05-01

    The climatic anomaly, which comes with extreme rainfall, will increase the flood hazard in an area within a short period of time. The river capacity in discharging the flood is not continuous along the river stretch and sensitive to the flood peak. This paper contains the alternatives on how to locate the flood retention pond that are physically feasible to reduce the flood peak. The flood ponds were designed based on flood curve number criteria (TR-55, USDA) with the aim of rapid flood peak capturing and gradual flood retuning back to the river. As a case study, the hydrologic condition of upper Ciliwung river basin with several presumed flood pond locations was conceptually designed. A fundamental tank model that reproducing the operation of interconnected ponds was elaborated to achieve the designed flood discharge that will flows to the downstream area. The flood hazard distribution status, as the model performance criteria, will be computed within Ciliwung river reach in Manggarai Sluice Gate spot. The predicted hazard reduction with the operation of the interconnected retention area result had been bench marked with the normal flow condition.

  6. Validation Hydrodynamic Models of Three Topological Models of Secondary Facultative Ponds

    OpenAIRE

    Aponte-Reyes Alxander

    2014-01-01

    A methodology was developed to analyze boundary conditions, the size of the mesh and the turbulence of a mathematical model of CFD, which could explain hydrodynamic behavior on facultative stabilization ponds, FSP, built to pilot scale: conventional pond, CP, baffled pond, BP, and baffled-mesh pond, BMP. Models dispersion studies were performed in field for validation, taking samples into and out of the FSP, the information was used to carry out CFD model simulations of the three topologies. ...

  7. Estimated hydrologic budgets of kettle-hole ponds in coastal aquifers of southeastern Massachusetts

    Science.gov (United States)

    Walter, Donald A.; Masterson, John P.

    2011-01-01

    Kettle-hole ponds in southeastern Massachusetts are in good hydraulic connection to an extensive coastal aquifer system that includes the Plymouth-Carver aquifer system on the mainland and aquifers underlying Cape Cod. The ponds receive water from, and contribute water to, the underlying glacial aquifer; ponds also receive water from precipitation and lose water to evaporation from the pond surface. Some ponds are connected to surface-water drainage systems and receive water from or contribute water to streams or adjacent wetlands. The Massachusetts Department of Environmental Protection currently (2011) is developing Total Maximum Daily Loads of phosphorus for the freshwater ponds in the region to maintain the health of pond ecosystems; the amounts and sources of water fluxes into and out of the ponds are important factors in determining the amount of phosphorus that can be assimilated into a pond. To assist in this effort, the U.S. Geological Survey used groundwater-flow models of the coastal aquifer system to estimate hydrologic budgets-including inflows and outflows from the aquifer system and adjacent streams and wetlands, and recharge from precipitation-for 425 ponds in southeastern Massachusetts.

  8. PRODUCTIVITY OF GROWING PONDS WHEN APPLYING THE BACTERIAL FERTILIZER «PHOSPHOBAKTERIN»

    Directory of Open Access Journals (Sweden)

    Т. Hryhorenko

    2017-09-01

    Full Text Available Purpose. To investigate the effect of the bacterial fertilizer "Phosphobacterin" on the formation of the hydrochemical regime, development of the natural food supply and fish productivity in the growing ponds. Methodology. The work was conducted according to generally accepted hydrochemical,, microbiological, hydrobiological and fish farming methods. Findings The article presents the results of a study of the productivity of growing ponds with different methods of the application of the bacterial fertilizer "Phosphobacterin". It was found that the hydrochemical regime of the experimental ponds was formed under the effect of the source of water supply and measures aimed at intensifying the development of the natural food supply and was favorable for the development of feed organisms and the cultivation of fish seeds. Application of the bacterial fertilizer at the beginning of the growing season along the water pond surface proved to be little effective for increasing the productivity of the pond ecosystem as a whole. A more effective method of increasing biological productivity, including fish productivity of growing ponds, was the application of "Phosphobacterin" during the growing season both on the bed and on the water surface in combination with the organic fertilizer - cattle humus. In the experimental pond under complex fertilization, the average phytoplankton biomass during the growing season was 1.5 times, bacterioplankton 1.1 times, zoobenthos 2.6 times higher, and the obtained total fish productivity was 1.2 times higher than in the control pond (when applying only cattle humus. Originality. The peculiarities of formation of hydrochemical and hydrobiological (phyto-, bacterio-, zooplankton, zoobenthos regimes of growing ponds and the fishery indices are studied, both for bacterial fertilizer "Phosphobacterin" independently and together with the traditional organic fertilizer - cattle humus. Practical value. Based on the obtained results

  9. Modeling a ponded infiltration experiment at Yucca Mountain, NV

    International Nuclear Information System (INIS)

    Hudson, D.B.; Guertal, W.R.; Flint, A.L.

    1994-01-01

    Yucca Mountain, Nevada is being evaluated as a potential site for a geologic repository for high level radioactive waste. As part of the site characterization activities at Yucca Mountain, a field-scale ponded infiltration experiment was done to help characterize the hydraulic and infiltration properties of a layered dessert alluvium deposit. Calcium carbonate accumulation and cementation, heterogeneous layered profiles, high evapotranspiration, low precipitation, and rocky soil make the surface difficult to characterize.The effects of the strong morphological horizonation on the infiltration processes, the suitability of measured hydraulic properties, and the usefulness of ponded infiltration experiments in site characterization work were of interest. One-dimensional and two-dimensional radial flow numerical models were used to help interpret the results of the ponding experiment. The objective of this study was to evaluate the results of a ponded infiltration experiment done around borehole UE25 UZN number-sign 85 (N85) at Yucca Mountain, NV. The effects of morphological horizons on the infiltration processes, lateral flow, and measured soil hydaulic properties were studied. The evaluation was done by numerically modeling the results of a field ponded infiltration experiment. A comparison the experimental results and the modeled results was used to qualitatively indicate the degree to which infiltration processes and the hydaulic properties are understood. Results of the field characterization, soil characterization, borehole geophysics, and the ponding experiment are presented in a companion paper

  10. Sediment remediation of the Hespeler Mill Pond, Cambridge, Ontario

    Energy Technology Data Exchange (ETDEWEB)

    Angeloni, D.; Eby, M.; Jarvis, S.; Martin, P. [Univ. of Guelph, School of Engineering, Guelph, Ontario (Canada)]. E-mail: danielle.angeloni@earthtech.ca

    2002-06-15

    'Full text:' Low dissolved oxygen levels and large accumulated sediment remediation alternatives were examined to assemble the Hespeler Mill Pond, Cambridge (HMP) into a healthier and more desirable recreational area in the City of Cambridge. The theory that a large amount of sediment has been deposited into the HMP from the Speed River upstream over a number of years predicts the depressed oxygen levels, high nutrient-loading rates and the odour problems in the summer months. The initial phase in the remediation plan for this project involved extensive background research and investigation. The focus was on determining the characteristics of the sediment and the history of the pond, to ultimately decide if the sediment was the source of the issues. Dissolved oxygen field tests and sediment sampling were conducted to get information on the magnitude of the problem and the environmental hazards potentially present in the pond. The pond was modelled utilising the Streeter-Phelps oxygen-sag model to predict the oxygen deficit. Biochemical Oxygen Demand (BOD{sub 5}) testing was completed to determine the oxygen demand in the pond. These tests were conducted by using water samples obtained from various sample points at the pond. The proposed solution is a combined dredging and aeration approach. Mechanical dredging using a clamshell bucket and the installation of aerators is expected to solve the dissolved oxygen and water quality issues. (author)

  11. Operation of a pond-cooler: the case of Berezovskaya GRES-1

    Science.gov (United States)

    Morozova, O. G.; Kamoza, T. L.; Koyupchenko, I. N.; Savelyev, A. S.; Pen, R. Z.; Veselkova, N. S.; Kudryavtsev, M. D.

    2017-08-01

    Pond-coolers at heat and nuclear power stations are natural-technological systems, so the program of their monitoring should include the effect made by the SRPS (state regional power station) on the pond ecosystem, including thermal discharge of cooling water. The objectives of this study were development and implementation of a monitoring program for the cooling pond of Berezovskaya SRPS-1 on the chemical and biological water quality indicators and identification of patterns of the thermal and hydrochemical regime when operating the progressive power plant (from 1996 to 2015). The quality of the cooling water of the pond-cooler BGRES-1 was studied under full-scale conditions by selecting and analyzing the water samples of the pond in accordance with the principles of complexity, systematic observation, and consistency of timing their conduct with the characteristic hydrological phases. Processing of the obtained array of monitoring data by methods of mathematical statistics makes it possible to identify the main factors affecting the water quality of the pond. The data on water quality obtained during their monitoring and mathematical processing over a long time interval are the scientific basis for forecasting the ecological state of the pond, which is necessary to economically ensure the efficient energy production and safety of water use. Recommendations proposed by these authors, including those partially already implemented, have been to prevent the development of eutrophication processes in the pond-cooler: the construction of a dam that cuts off the main peat massif and cleaning the river banks forming the cooling pond.

  12. Security dialogues: building better relationships between security and business

    OpenAIRE

    Ashenden, Debi; Lawrence, Darren

    2016-01-01

    In the real world, there's often a discrepancy between an organization's mandated security processes and what actually happens. The social practice of security flourishes in the space between and around formal organizational security processes. By recognizing the value of risk management as a communication tool, security practitioners can tap opportunities to improve the security dialogue with staff.

  13. Heat recovery from ground below the solar pond

    NARCIS (Netherlands)

    Ganguly, S.; Date, Abhijit; Akbarzadeh, Aliakbar

    2017-01-01

    The method of heat recovery from the ground below solar ponds is investigated in the present brief note. Solar ponds lose considerable amount of heat from its bottom to the ground due to temperature gradient between them. This waste heat from ground, which is at different temperature at different

  14. Mathematical modeling of dissolved oxygen in fish ponds ...

    African Journals Online (AJOL)

    Mathematical modeling of dissolved oxygen in fish ponds. WJS Mwegoha, ME Kaseva, SMM Sabai. Abstract. A mathematical model was developed to predict the effects of wind speed, light, pH, Temperature, dissolved carbon dioxide and chemical oxygen demand (COD) on Dissolved Oxygen (DO) in fish ponds. The effects ...

  15. A blueprint for social security reform: a report by the National Council of Welfare

    National Research Council Canada - National Science Library

    1994-01-01

    This report is a first response to the discussion paper entitled, 'Improving Social Security in Canada' which was tabled in Parliament on October 5, 1994 by the Minister of Human Resources Development...

  16. Determination of the algal growth-limiting nutrients in strip mine ponds

    International Nuclear Information System (INIS)

    Bucknavage, M.J.; Aharrah, E.C.

    1984-01-01

    Using both a test organism, Ankistrodesmus falcatus, and natural phytoplankton, the Printz Algal Assay Bottle Test was used to determine the algal growth limiting nutrients in two strip mine ponds. Nitrogen, phosphorus, and iron were investigated, singly and in combination, as possible limiting nutrients. A synthetic chelator, Na 2 EDTA, was also used in the assay to test for the presence of metal toxicants and/or trace metal limitation. Because bacteria have a major influence on water chemistry, a separate assay incorporating the natural bacteria population was performed. In both ponds, assay results using test alga indicate phosphorus to be the primary limiting nutrient and nitrogen as a secondary factor. The presence of EDTA in combination with phosphate containing treatment promoted a higher algal concentration in both ponds. Iron was determined to be a secondary limiting nutrient in only one of the ponds. Natural phytoplankton of the two ponds responded in a similar manner to nutrient increases. Only one pond had the same results produced by both assays. Nutrient availability was influenced by the presence of bacteria in one pond but not in the other

  17. THERMAL AND OXYGEN CONDITIONS IN CARP PONDS DURING THE SUMMER PERIOD

    Directory of Open Access Journals (Sweden)

    Magdalena Wiśnios

    2015-11-01

    Full Text Available The work presents changes of oxygen indices in carp ponds during the summer season. The basis of the research were regular water tests conducted in two ponds: Mydlniki II intended for carp farming in the second year of fish production cycle and Bocian used for carp farming in the third (final year of breeding. The temperature of pond water in July and August was optimal for development and farming of cyprinid fish and ranged from 16.6 to 30.5 °C. The lowest value of oxygen dissolved in water (6.4 mg·dm-3 was registered in Mydlniki II pond and was higher than the oxygen optimum for carp (5 mg·dm-3. Oxygen saturation in water of fish ponds exceeded the optimum upper limit value (168% on a few dates, however, it posed no lethal threat for fish. In August in Bocian pond oxygen saturation fell within the range of optimal values, creating better conditions for fish development. In the secondary pond (Mydlniki II it was found that oxygen saturation in water on 12 dates was lower than the low optimal value (96%.

  18. Social security reform and population ageing in a two-sector growth model

    NARCIS (Netherlands)

    Groezen, Bas van; Meijdam, L.; Verbon, H.

    2002-01-01

    This paper analyses the e¤ects of reducing unfunded social security and population ageing on economic growth and welfare, both for a small open economy and for a closed economy. The economy consists of a service sector and a commodity sector. Productivity growth only occurs in the latter sector

  19. Experimental and modelling of Arthrospira platensis cultivation in open raceway ponds.

    Science.gov (United States)

    Ranganathan, Panneerselvam; Amal, J C; Savithri, S; Haridas, Ajith

    2017-10-01

    In this study, the growth of Arthrospira platensis was studied in an open raceway pond. Furthermore, dynamic model for algae growth and CFD modelling of hydrodynamics in open raceway pond were developed. The dynamic behaviour of the algal system was developed by solving mass balance equations of various components, considering light intensity and gas-liquid mass transfer. A CFD modelling of the hydrodynamics of open raceway pond was developed by solving mass and momentum balance equations of the liquid medium. The prediction of algae concentration from the dynamic model was compared with the experimental data. The hydrodynamic behaviour of the open raceway pond was compared with the literature data for model validation. The model predictions match the experimental findings. Furthermore, the hydrodynamic behaviour and residence time distribution in our small raceway pond were predicted. These models can serve as a tool to assess the pond performance criteria. Copyright © 2017 Elsevier Ltd. All rights reserved.

  20. The origin and fate of arsenic in coalbed natural gas-produced water ponds.

    Science.gov (United States)

    Sowder, J T; Kelleners, T J; Reddy, K J

    2010-01-01

    Coalbed natural gas (CBNG)-produced water contains small amounts of trace metals that can accumulate over time in produced water retention ponds. Within the Powder River Basin (PRB) of Wyoming, high concentrations of trace metals in pond water and their effect on shallow groundwater are potential concerns. A pond with a maximum As concentration of 146 microg L(-1) was studied in detail to determine the potential for groundwater pollution and to explain the cause for the high concentration of As. Infiltration characteristics, subsurface hydrology, our fall and pond water quality, isotope signatures, and trace metal balances were examined to assess the hydrology and geochemistry of the pond. The results indicated minimum or no infiltration of pond water and no measurable contamination of the shallow groundwater. The high As concentrations in the pond were determined to be the result of semi-continuous inputs of CBNG-produced water with low As concentrations (0.20-0.48 microg L(-1)), exasperated by low pond volumes during drought conditions. Because of reduced infiltration and high evaporation rates, As became concentrated over time. Reduced infiltration was most likely caused by the high sodium concentration and high sodium adsorption ratio of the CBNG-produced water, which disrupt soil structure. The findings for the pond and the techniques used may serve as a template for future impact assessments of other CBNG-produced water ponds and are relevant for the approximately 4000 ponds currently permitted in the PRB and for future ponds. Further studies are recommended in the use of playa landforms to store marginal-quality produced water.

  1. Social Security reform: evaluating current proposals. Latest results of the EBRI-SSASIM2 policy simulation model.

    Science.gov (United States)

    Copeland, C; VanDerhei, J; Salisbury, D L

    1999-06-01

    The present Social Security program has been shown to be financially unsustainable in the future without modification to the current program. The purpose of this Issue Brief, EBRI's fourth in a series on Social Security reform, is threefold: to illustrate new features of the EBRI-SSASIM2 policy simulation model not available in earlier EBRI publications, to expand quantitative analysis to specific proposals, and to evaluate the uncertainty involved in proposals that rely on equity investment. This analysis compares the Gregg/Breaux-Kolbe/Stenholm (GB-KS) and Moynihan/Kerrey proposals with three generic or "traditional" reforms: increasing taxes, reducing benefits, and/or increasing the retirement age. Both proposals would create individual accounts by "carving out" funds from current Social Security payroll taxes. This analysis also examines other proposed changes that would "add on" to existing Social Security funds through the use of general revenue transfers and/or investment in the equities market. President Clinton has proposed a general revenue transfer and the collective investment of some of the OASDI trust fund assets in equities. Reps. Archer and Shaw have proposed a general revenue tax credit to establish individual accounts that would be invested partially in the equities markets. When comparing Social Security reform proposals that would specifically alter benefit levels, the Moynihan/Kerrey bill compares quite favorably with the other proposals in both benefit levels and payback ratios, when individuals elect to use the individual account option. In contrast, the GB-KS bills do not compare quite as favorably for their benefit levels, but do compare favorably in terms of payback ratios. An important comparison in these bills is the administrative costs of managing the individual accounts, since benefits can be lowered by up to 23 percent when going from the assumed low to high administrative costs. Moreover, allowing individuals to decide whether to

  2. Assessment of waste stabilization ponds (WSP) efficiency on ...

    African Journals Online (AJOL)

    This stage is essential for polishing water and nutrient as well as pathogen removal. There is need of frequent awareness campaign to a community for the reuse of wastewater for agriculture and its possible impacts. Ponds should be modified and addition of maturation ponds constructed. Further studies are required for ...

  3. Little Fish in a Big Pond--Time to Get Schooled!

    Science.gov (United States)

    Moye, Johnny J.

    2011-01-01

    One technique used by many who fish is to catch a fish in a creek or pond and then release it in a different pond. This satisfies the desire for sport, and it also serves to stock a pond that may need replenishment. Of course this restocking can be a traumatic experience for the new fish. To survive in the new environment, the fish must find its…

  4. Sea Ice Melt Pond Data from the Canadian Arctic

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains observations of albedo, depth, and physical characteristics of melt ponds on sea ice, taken during the summer of 1994. The melt ponds studied...

  5. Ecological behavior of plutonium and americium in a freshwater pond

    International Nuclear Information System (INIS)

    Emery, R.M.; Klopfer, D.C.; Garland, T.R.; Weimer, W.C.

    1976-01-01

    A plutonium (Pu) processing waste pond on the Hanford Reservation has been studied since mid-1973 to characterize the pond's limnology and determine the ecological behavior of transuranics in this ecosystem. This ultra-eutrophic pond has a water inflow rate of 10 m 3 /min, of which 95% leaves the pond by percolation. Macrophytes (mainly Potamogeton), algae (mainly Cladophora), benthic invertebrates (mainly dipteran and odonate larvae, hemipterans, amphipods and gastropods) and goldfish are the major biotic components of the system. Sediments appear to be the principal repository of Pu and Am, having mean concentrations for 238 Pu, 239 240 Pu and 241 Am of 112, 121 and 71 pCi/g (dry), respectively. Mean ratios of isotopes in the sediments are 0.85 for 238 Pu to 239 240 Pu, and 0.49 for 241 Am to 239 240 Pu. Algal floc (decomposing algal material) is the major concentrator of Pu and Am in the pond having mean concentrations of 238 Pu of 986 pCi/g, for 239 240 Pu of 615 pCi/g, and for 241 Am of 256 pCi/g. Watercress (Rorippa) had Pu levels about equal to those of the sediments, while dragonfly larvae (Libellula) and snails (Lymnaea) along with watercress had Am levels approximating those of the sediments. The remaining biota had Pu and Am levels which were generally well below those of the sediments.Preliminary in situ experiments indicate that goldfish reach an equilibrium level for Pu of about 15 pCi/g within a few days of exposure to the pond, after which they may remain active in the pond for many months without further accumulation. Experimental goldfish established ratios of 238 Pu to 239 240 Pu and 241 Am to 239 240 Pu that were similar to all other pond biota within 2 weeks of pond residence, suggesting a common source of biologically available Pu and Am

  6. Further contributions to the understanding of nitrogen removal in waste stabilization ponds.

    Science.gov (United States)

    Bastos, R K X; Rios, E N; Sánchez, I A

    2018-06-01

    A set of experiments were conducted in Brazil in a pilot-scale waste stabilization pond (WSP) system (a four-maturation-pond series) treating an upflow anaerobic sludge blanket (UASB) reactor effluent. Over a year and a half the pond series was monitored under two flow rate conditions, hence also different hydraulic retention times and surface loading rates. On-site and laboratory trials were carried out to assess: (i) ammonia losses by volatilization using acrylic capture chambers placed at the surface of the ponds; (ii) organic nitrogen sedimentation rates using metal buckets placed at the bottom of the ponds for collecting settled particulate matter; (iii) nitrogen removal by algal uptake based on the nitrogen content of the suspended particulate matter in samples from the ponds' water column. In addition, nitrification and denitrification rates were measured in laboratory-based experiments using pond water and sediment samples. The pond system achieved high nitrogen removal (69% total nitrogen and 92% ammonia removal). The average total nitrogen removal rates varied from 10,098 to 3,849 g N/ha·d in the first and the last ponds, respectively, with the following fractions associated with the various removal pathways: (i) 23.5-45.6% sedimentation of organic nitrogen; (ii) 13.1-27.8% algal uptake; (iii) 1.2-3.1% ammonia volatilization; and (iv) 0.15-0.34% nitrification-denitrification.

  7. The effect of sunny area ratios on the thermal performance of solar ponds

    International Nuclear Information System (INIS)

    Bozkurt, Ismail; Karakilcik, Mehmet

    2015-01-01

    Highlights: • The effect of sunny area ratio on model solar ponds in different geometries. • The sunny area ratio was calculated for 8 different cases. • The efficiency of the model solar pond was determined for 8 different cases. • The energy efficiencies of the solar pond are affected by the sizes of the solar pond, strongly. • The results help to select the sizes of the solar pond before construction. - Abstract: In this study, we investigated the effect of the sunny area ratios on thermal efficiency of model solar pond for different cases in Adiyaman, Turkey. For this purpose, we modeled the solar ponds to compute theoretical sunny area ratios of the zones and temperature distributions in order to find the performance of the model solar ponds. Incorporating the finite difference approach, one and two dimensional heat balances were written for inner zones and insulation side walls. Through, careful determination of the dimensions, insulation parameter and incoming solar radiation reaching the storage zone increased the efficiency of the solar pond. The efficiencies of the model solar pond were determined for case1a–2a–3a–4a to be maximum 14.93%, 20.42%, 23.51% and 27.84%, and for case1b–2b–3b–4b to be maximum 12.65%, 16.76%, 21.37% and 23.30% in August, respectively. With the increase of the sunny area ratio, the performance of the solar pond significantly increased. However, with the increasing rate of the surface area, performance increase rate decreased gradually. The results provide a strong perspective to determine the dimensions of the solar pond before starting the project of a solar pond

  8. Use of cooling ponds and hydraulic turbines to save SRP energy consumption

    International Nuclear Information System (INIS)

    Price, J.B.

    1980-01-01

    A substantial amount of energy can be saved by using cooling ponds to supply C and K reactors with cooling water. Hydraulic turbines between the reactor and the cooling pond can recover some of the power used to pump cooling water to the reactors. Cooling ponds would also reduce effluent temperature in the swamps adjacent to the Savannah River. Cooling ponds are evaluated in this memorandum

  9. Pond Dynamics and Supraglacial-Englacial Connectivity on Debris-Covered Lirung Glacier, Nepal

    Directory of Open Access Journals (Sweden)

    Evan S. Miles

    2017-09-01

    Full Text Available The hydrological systems of heavily-downwasted debris-covered glaciers differ from those of clean-ice glaciers due to the hummocky surface and debris mantle of such glaciers, leading to a relatively limited understanding of drainage pathways. Supraglacial ponds represent sinks within the discontinuous supraglacial drainage system, and occasionally drain englacially. To assess pond dynamics, we made pond water level measurements on Lirung Glacier, Nepal, during May and October of 2013 and 2014. Simultaneously, aerial, satellite, and terrestrial orthoimages and digital elevation models were obtained, providing snapshots of the ponds and their surroundings. We performed a DEM-based analysis of the glacier's closed surface catchments to identify surface drainage pathways and englacial drainage points, and compared this to field observations of surface and near-surface water flow. The total ponded area was higher in the pre-monsoon than post-monsoon, with individual ponds filling and draining seasonally associated with the surface exposure of englacial conduit segments. We recorded four pond drainage events, all of which occurred gradually (duration of weeks, observed diurnal fluctuations indicative of varying water supply and outflow discharge, and we documented instances of interaction between distant ponds. The DEM drainage analysis identified numerous sinks >3 m in depth across the glacier surface, few of which exhibited ponds (23%, while the field survey highlighted instances of surface water only explicable via englacial routes. Taken together, our observations provide evidence for widespread supraglacial-englacial connectivity of meltwater drainage paths. Results suggest that successive englacial conduit collapse events, themselves likely driven by supraglacial pond drainage, cause the glacier surface drainage system to evolve into a configuration following relict englacial conduit systems. Within this system, ponds form in depressions of

  10. Using nanofluids in enhancing the performance of a novel two-layer solar pond

    International Nuclear Information System (INIS)

    Al-Nimr, Moh'd A.; Al-Dafaie, Ameer Mohammed Abbas

    2014-01-01

    A novel two-layer nanofluid solar pond is introduced. A mathematical model that describes the thermal performance of the pond has been developed and solved. The upper layer of the pond is made of mineral oil and the lower layer is made of nanofluid. Nanofluid is known to be an excellent solar radiation absorber, and this has been tested and verified using the mathematical model. Using nanofluid will increase the extinction coefficient of the lower layer and consequently will improve the thermal efficiency and the storage capacity of the pond. The effects of other parameters have been also investigated. - Highlights: • A novel two-layer solar pond is discussed. • Nanofluid as thermal energy storage is used in this pond. • A mathematical model is developed to predict the performance of the pond. • The mathematical model is solved using Green's function. • The pond is simulated for different values of governing parameter

  11. The Social Security Program and the Private Sector Alternative: Lessons from History.

    Science.gov (United States)

    Quadagno, Jill

    1987-01-01

    Used historical evidence to analyze how private sector benefits worked in the past in light of the debate surrounding the Social Security benefits and the federal deficit. Among conclusions reached are that the private sector failed to provide adequate protection for older citizens, and that benefits were inequitably distributed on basis of gender…

  12. Evaluation of relocation of unionid mussels into artificial ponds

    Science.gov (United States)

    Newton, T.J.; Monroe, E.M.; Kenyon, R.; Gutreuter, S.; Welke, K.I.; Thiel, P.A.

    2001-01-01

    Relocation of unionid mussels into refuges (e.g., hatchery ponds) has been suggested as a management tool to protect these animals from the threat of zebra mussel (Dreissena polymorpha) invasion. To evaluate the efficacy of relocation, we experimentally relocated 768 mussels, representing 5 species (Leptodea fragilis, Obliquaria reflexa, Fusconaia flava, Amblema plicata, and Quadrula quadrula) into an earthen pond at a National Fish Hatchery or back into the river. In both locations, mussels were placed into 1 of 4 treatments (mesh bags, corrals, and buried or suspended substrate-filled trays). Mussels were examined annually for survival, growth (shell length and wet mass), and physiological condition (glycogen concentration in foot and mantle and tissue condition index) for 36 mo in the pond or 40 mo in the river. We observed significant differences in mortality rates between locations (mortality was 4 times greater in the pond than in the river), among treatments (lowest mortality in the suspended trays), and among species (lower mortality in the amblemines than lamp-silines). Overall survival in both locations averaged 80% the 1st year; survival in the pond decreased dramatically after that. Although length and weight varied between locations and over time, these changes were small, suggesting that their utility as short-term measures of well being in long-lived unionids is questionable. Mussels relocated to the pond were in poor physiological condition relative to those in the river, but the magnitude of these differences was small compared to the inherent variability in physiological condition of reference mussels. These data suggest that relocation of unionids into artificial ponds is a high-risk conservation strategy; alternatives such as introduction of infected host fish, identification of mussel beds at greatest risk from zebra mussels, and a critical, large-scale assessment of the factors contributing to their decline should be explored.

  13. Evaluation of factors influencing patient satisfaction in social security hospitals in Mazandaran province, North of Iran.

    Science.gov (United States)

    Jafari Kelarijani, Seyed Ebrahim; Jamshidi, Reza; Heidarian, Ali Reza; Khorshidi, Mohamad

    2014-01-01

    Patient satisfaction is affected by hospital services and may have an effect on the cultural, social and personal conditions of the people living in the region. This research aimed to evaluate the patient satisfaction in social security hospitals in Mazandaran province. From Spring 2012 to Summer 2013, all patients admitted to social security hospitals in Mazandaran province were entered in the study. Data regarding to inhabitation, sex, income and patients' educational level and satisfaction with the hospital services were collected. Seven hundred seventy-six patients with mean age of 47.35±7.41 years were analyzed. Patient's inhabitant, educational attainment and income level had a significant relationship with patient satisfaction level (ppatients' gender. The results show that the patient's inhabitant, educational and income level are related to attain patients' satisfaction.

  14. Cyber Security as Social Experiment

    NARCIS (Netherlands)

    Pieters, Wolter; Hadziosmanovic, D.; Dechesne, Francien

    2014-01-01

    Lessons from previous experiences are often overlooked when deploying security-sensitive technology in the real world. At the same time, security assessments often suffer from a lack of real-world data. This appears similar to general problems in technology assessment, where knowledge about

  15. Fate of Pyrethroids in Farmland Ponds

    DEFF Research Database (Denmark)

    Mogensen, B. B.; Sørensen, P. B.; Stuer-Lauridsen, F.

    Pyrethroids constitute a group of widely used insecticides, which are toxic to aquatic organisms. This report presents the results from a 2-year study of the fate of pyrethroids in ponds, i.e. their distribution in the water column, the sediment and the surface microlayer respectively. The measur......Pyrethroids constitute a group of widely used insecticides, which are toxic to aquatic organisms. This report presents the results from a 2-year study of the fate of pyrethroids in ponds, i.e. their distribution in the water column, the sediment and the surface microlayer respectively...

  16. Thermal performance measurements on ultimate heat sinks--cooling ponds

    International Nuclear Information System (INIS)

    Hadlock, R.K.; Abbey, O.B.

    1977-12-01

    The primary objective of the studies described is to obtain the requisite data, with respect to modeling requirements, to characterize thermal performance of heat sinks for nuclear facilities existing at elevated water temperatures in result of experiencing a genuinely large heat load and responding to meteorological influence. The data should reflect thermal performance for combinations leading to worst-case meteorological influence. A geothermal water retention basin has been chosen as the site for the first measurement program and data have been obtained in the first of several experiments scheduled to be performed there. These data illustrate the thermal and water budgets during episodes of cooling from an initially high pond water bulk temperature. Monitoring proceeded while the pond experienced only meteorological and seepage influence. The data are discussed and are presented as a data volume which may be used for calculation purposes. Suggestions for future measurement programs are stated with the intent to maintain and improve relevance to nuclear ultimate heat sinks while continuing to examine the performance of the analog geothermal pond. It is further suggested that the geothermal pond, with some modification, may be a suitable site for spray pond measurements

  17. The Security of Organizations and Individuals in Online Social Networks

    OpenAIRE

    Elyashar, Aviad

    2016-01-01

    The serious privacy and security problems related to online social networks (OSNs) are what fueled two complementary studies as part of this thesis. In the first study, we developed a general algorithm for the mining of data of targeted organizations by using Facebook (currently the most popular OSN) and socialbots. By friending employees in a targeted organization, our active socialbots were able to find new employees and informal organizational links that we could not find by crawling with ...

  18. Development of shrimp in small ponds

    Directory of Open Access Journals (Sweden)

    Armando Adolfo Ortega Salas

    2014-06-01

    Full Text Available Development of white shrimp Litopenaeus vannamei in small ponds ( 6 m3 in fresh water (2-3‰ and seawater; ponds 3.66 x 1.65 x 1.0 m; availability of fresh water, sea water, aeration and drainage. Two cycles of three months each were made. The postlarvae were acclimated to seawater fresh water in four days. Four hundred postlarvas/m3 were seeded in freshwater pond and 500 in the pool of seawater. First, a culture of Daphnia magna in the freshwater pond, also appeared chyronomid larvae; Artemia cysts were seeded in sea water as a dietary supplement. The shrimp were fed Camaronina (25% protein at libitum, daily; is offered on a tray of food; the temperature ranged between 27 and 30° C, oxygen 4.26 ± 1.43 mg / L , pH between 7 and 8 . Detritus siphoned every third day. Water changes between 10 and 20% are often performed. The feed conversion rate (FCR was 1:1.3 . The shrimp were measured in length and weight to calculate weekly growth by Bertalanffy model. Survival in the first cycle was 95.8 , and 97.9% for the second cycle. In seawater parameters of the population of the first cycle were k = 0.0301, L ∞ = 322.16 and t0 = -0.8852, the second cycle of k = 0.0203, L ∞ = 294.42 and t0 = -5.3771. The biomass of 27 kg was obtained for the first cycle and 16 kg for the second cycle. Freshwater population parameters of the first cycle were k = 0.0957, L ∞ = 146.98 and t0 = - 0.93; in the second cycle of k = 0.0172 , L ∞ = 367.82 and t0 = - 4.60. The biomass of 26 kg was obtained for the first cycle and 16 kg for the second cycle. The results indicate a rapid growth during the first 10 weeks. In small ponds can be handled well aseptic conditions without disease problems, good crop was obtained.

  19. [Demographic aging and social security. The insufficiency of old age pensions].

    Science.gov (United States)

    Ham Chande, R

    1993-01-01

    The demographic transition is leading to demographic aging in Mexico, as lower fertility and greater life expectancy combine to produce absolute and percentage increases in the elderly population. Concern is growing about satisfying the material needs of the elderly population. Only a few developed countries are able to furnish adequate pensions to their retired workers through social security systems. In Mexico, class inequity is a greater determinant of the level of pension coverage than is generational solidarity. Mexico's 1990 census showed that the population of 81,250,000 was comprised of 24,517,000 economically active and 56,733,000 inactive persons. Of the 24,517,000 economically active, 7,282,000 mostly lower level employees and laborers were affiliated only with the Mexican Institute of Social Security (IMSS). 2,308,000 were covered by the IMSS and one of the complementary pension systems sponsored by the largest and most organized private companies. 2,629,000 were entitled to pensions through public sector employment and 584,000 through quasipublic employment. The remaining 11,571,000 had no rights to a pension. In other words, 47% of the labor force was not covered by any retirement pension system. 375,000 of the 5,007,000 persons over age 60 in the economically inactive population had some sort of pension from the IMSS. In 1990, 92% received the minimum pension, equivalent to 70% of the minimum salary. 229,000 had an IMSS pension and a complementary private pension. 196,000 pensioners in the public sector received an average pension of 1.5 times the minimum salary. 66,000 retired workers in quasipublic enterprises received pensions with automatic adjustments for inflation that frequently equaled 20 times the minimum salary. The total number of recipients of pensions of all types was 888,000,leaving 4,119,000 persons over 60 with no pension. Because of the deficiencies of the social security system, families must continue to be the institution that aids

  20. Capturing temporal and spatial variability in the chemistry of shallow permafrost ponds

    Science.gov (United States)

    Morison, Matthew Q.; Macrae, Merrin L.; Petrone, Richard M.; Fishback, LeeAnn

    2017-12-01

    Across the circumpolar north, the fate of small freshwater ponds and lakes (mediated by processes within ponds. This work demonstrates the importance of understanding hydrologically driven chemodynamics in permafrost ponds on multiple scales (seasonal and event scale).

  1. Quarterly Data for Spoken Language Preferences of Social Security Retirement and Survivor Claimants (2016-onwards)

    Data.gov (United States)

    Social Security Administration — This data set provides quarterly volumes for language preferences at the national level of individuals filing claims for Retirement and Survivor benefits from fiscal...

  2. Quarterly Data for Spoken Language Preferences of Social Security Retirement and Survivor Claimants (2014-2015)

    Data.gov (United States)

    Social Security Administration — This data set provides quarterly volumes for language preferences at the national level of individuals filing claims for Retirement and Survivor benefits for fiscal...

  3. Environmental security as related to scale mismatches of disturbance patterns in a panarchy of social-ecological landscapes

    Science.gov (United States)

    Giovanni Zurlini; Irene Petrosillo; Nicola Zaccarelli; Kurt Riitters

    2008-01-01

    Environmental security, as the opposite of environmental fragility (vulnerability), is multilayered, multi-scale and complex, existing in both the objective realm of biophysics and society, and the subjective realm of individual human perception. For ecological risk assessments (ERAs), the relevant objects of environmental security are social-ecological landscapes (...

  4. Heat transfer in melt ponds with convection and radiative heating: observationally-inspired modelling

    Science.gov (United States)

    Wells, A.; Langton, T.; Rees Jones, D. W.; Moon, W.; Kim, J. H.; Wilkinson, J.

    2016-12-01

    Melt ponds have key impacts on the evolution of Arctic sea ice and summer ice melt. Small changes to the energy budget can have significant consequences, with a net heat-flux perturbation of only a few Watts per square metre sufficient to explain the thinning of sea ice over recent decades. Whilst parameterisations of melt-pond thermodynamics often assume that pond temperatures remain close to the freezing point, recent in-situ observations show more complex thermal structure with significant diurnal and synoptic variability. We here consider the energy budget of melt ponds and explore the role of internal convective heat transfer in determining the thermal structure within the pond in relatively calm conditions with low winds. We quantify the energy fluxes and temperature variability using two-dimensional direct numerical simulations of convective turbulence within a melt pond, driven by internal radiative heating and surface fluxes. Our results show that the convective flow dynamics are modulated by changes to the incoming radiative flux and sensible heat flux at the pond surface. The evolving pond surface temperature controls the outgoing longwave emissions from the pond. Hence the convective flow modifies the net energy balance of a melt pond, modulating the relative fractions of the incoming heat flux that is re-emitted to the atmosphere or transferred downward into the sea ice to drive melt.

  5. The effect of beaver ponds on water quality in rural coastal plain streams

    Science.gov (United States)

    Bason, Christopher W.; Kroes, Daniel; Brinson, Mark M.

    2017-01-01

    We compared water-quality effects of 13 beaver ponds on adjacent free-flowing control reaches in the Coastal Plain of rural North Carolina. We measured concentrations of nitrate, ammonium, soluble reactive phosphorus (SRP), and suspended sediment (SS) upstream and downstream of paired ponds and control reaches. Nitrate and SS concentrations decreased, ammonium concentrations increased, and SRP concentrations were unaffected downstream of the ponds and relative to the control reaches. The pond effect on nitrate concentration was a reduction of 112 ± 55 μg-N/L (19%) compared to a control-reach—influenced reduction of 28 ± 17 μg-N/L. The pond effect on ammonium concentration was an increase of 9.47 ± 10.9 μg-N/L (59%) compared to the control-reach—influenced reduction of 1.49 ± 1.37 μg-N/L. The pond effect on SS concentration was a decrease of 3.41 ± 1.68 mg/L (40%) compared to a control-reach—influenced increase of 0.56 ± 0.27 mg/L. Ponds on lower-order streams reduced nitrate concentrations by greater amounts compared to those in higher-order streams. Older ponds reduced SS concentrations by greater amounts compared to younger ponds. The findings of this study indicate that beaver ponds provide water-quality benefits to rural Coastal Plain streams by reducing concentrations of nitrate and suspended sediment.

  6. Inventory of vegetation and benthos in newly laid and natural ponds in Forsmark 2012

    International Nuclear Information System (INIS)

    Qvarfordt, Susanne; Wallin, Anders; Borgiel, Micke

    2013-01-01

    SKB plans to build a repository for the spent nuclear fuel. The repository is planned to be built in Forsmark and constitutes installations above and below ground. The building and operation of the construction will involve activities that might affect the nature in the area. The impact means, among other things, that a small water body, which today is a reproduction site for the red listed pool frog (Rana lessonae), will disappear. The lost locality for the pool frog has been compensated by creating four new ponds in the Forsmark area. This study is part of the follow-up of these new habitats. The aim is to describe the plant and animal communities in the ponds, and follow the succession, i.e. the development of the habitats. The study also includes two natural ponds that will serve as reference objects. The survey of vegetation and invertebrate fauna in the ponds was conducted in October 2012. The results show that the new ponds had low coverage of submersed vegetation and the species composition in the plant communities differed between the ponds. The reference ponds also had different plant communities, both in terms of species composition and coverage. This indicates that the species composition of the plant communities in the new ponds will likely depend on physical factors specific to the respective pond, but that higher vegetation coverage can be expected over time in all new ponds. The reference ponds had similar animal communities that differed from the animal communities in the new ponds. The similar species composition in the reference ponds, despite the variety of plant communities, suggests that similar animal communities are likely to develop in the new ponds, even if the plant communities continues to be different. Water chemical sampling has also been conducted in the ponds during 2012. A comparison of the inorganic environment (with regard to analysed ions) showed that the reference ponds had relatively similar ion compositions with little

  7. Insight into the risk of replenishing urban landscape ponds with reclaimed wastewater.

    Science.gov (United States)

    Chen, Rong; Ao, Dong; Ji, Jiayuan; Wang, Xiaochang C; Li, Yu-You; Huang, Yue; Xue, Tao; Guo, Hongbing; Wang, Nan; Zhang, Lu

    2017-02-15

    Increasing use of reclaimed wastewater (RW) for replenishing urban landscape ponds has aroused public concern about the water quality. Three ponds replenished with RW in three cities in China were chosen to investigate 22 indexes of water quality in five categories. This was achieved by comparing three pairs of ponds in the three different cities, where one pond in each pair was replenished with RW and the other with surface water (SW). The nutrients condition, heavy metal concentration and ecotoxicity did not differ significantly between RW- and SW-replenished ponds. By contrast, significant differences were observed in algal growth and pathogen risk. RW ponds presented a Cyanophyta-Chlorophyta-Bacillariophyta type with high algal diversity while SW ponds presented a Cyanophyta type with low diversity. Regrowth of bacterial pathogens and especially survival of viral pathogens in RW, was the main driver behind the higher risk for RW ponds compared with SW ones. The duration of RW replenishment was proved to have a marked impact on the algal growth and pathogen risk. With continued RW replenishment, non-dominant algal species subjected to decrease while dominant species were enhanced resulting in the biomass increasing but diversity declining, and the risk posed by viral pathogens might become greater. Copyright © 2016 Elsevier B.V. All rights reserved.

  8. Symptom validity issues in the psychological consultative examination for social security disability.

    Science.gov (United States)

    Chafetz, Michael D

    2010-08-01

    This article is about Social Security Administration (SSA) policy with regard to the Psychological Consultative Examination (PCE) for Social Security Disability, particularly with respect to validation of the responses and findings. First, the nature of the consultation and the importance of understanding the boundaries and ethics of the psychologist's role are described. Issues particular to working with low-functioning claimants usually form a large part of these examinations. The psychologist must understand various forms of non-credible behavior during the PCE, and how malingering might be considered among other non-credible presentations. Issues pertaining to symptom validity testing in low-functioning claimants are further explored. SSA policy with respect to symptom validity testing is carefully examined, with an attempt to answer specific concerns and show how psychological science can be of assistance, particularly with evidence-based practice. Additionally, the nature and importance of techniques to avoid the mislabeling of claimants as malingerers are examined. SSA requires the use of accepted diagnostic techniques with which to establish impairment, and this article describes the implementation of that requirement, particularly with respect to validating the findings.

  9. 216-U-10 Pond and 216-Z-19 Ditch characterization studies

    Energy Technology Data Exchange (ETDEWEB)

    Last, G.V.; Duncan, D.W.; Graham, M.J.; Hall, M.D.; Hall, V.W.; Landeen, D.S.; Leitz, J.G.; Mitchell, R.M.

    1994-02-01

    The chemical, reprocessing of spent nuclear fuels at the US Department of Energy`s Hanford Site has generated large volumes of radioactive liquid effluents. The majority of these effluents have been used strictly for cooling or other supportive functions and have been discharged to ditches and ponds. The 216-U-10 Pond and 216-Z-19 Ditch are two such disposal facilities. These facilities are components of an integrated system of ditches, ponds, and overflow facilities collectively referred to as the U-Pond disposal system. The U-Pond system has been used since 1943 and has received a large variety of radioisotopes from several sources. This study covered tho major aspects of the environment, including wind resuspension, biological uptake and transport, geologic distribution in surface and subsurface sediments, and ground-water impacts. The long-term use of U-Pond and the Z-19 Ditch has resulted in the localized accumulation of transuranic and fission product inventories as a result of sorption and filtration of particulates onto the uppermost sediments.

  10. Concentrated Brine Treatment using New Energy in Coal Mine Evaporation Ponds

    Science.gov (United States)

    Li, Ting; Li, Jingfeng

    2017-12-01

    Recently, more and more coal mine water is being advanced treated and reused in China. The concentrated brine that results from advanced treatment methods can only be evaporated in an evaporation pond. Because of limited treatment capabilities and winter freezing, evaporation ponds often overflow, causing environment contamination. In this paper, based on analysis of brine water quality and economic-technical feasibility, we present a suitable treatment method for brine in evaporation ponds as electrodialysis using solar energy. In addition, we propose a new system to treat brine in coal mine evaporation ponds, which is powered by solar and wind. The operating efficiency of this treatment system proposed in this paper can meet the concentrated brine treatment demands in most coal mines in western mining areas of China and it places the photovoltaic power generation plates on the surface of the evaporation pond on a fixed floating island, which reduces any risk associated with land acquisition. This system can enhance brine treatment efficiency, requires a reduced evaporation pond area, increases the utilization of coal mine water, and minimizes the risk of environment contamination.

  11. 216-U-10 Pond and 216-Z-19 Ditch characterization studies

    International Nuclear Information System (INIS)

    Last, G.V.; Duncan, D.W.; Graham, M.J.; Hall, M.D.; Hall, V.W.; Landeen, D.S.; Leitz, J.G.; Mitchell, R.M.

    1994-02-01

    The chemical, reprocessing of spent nuclear fuels at the US Department of Energy's Hanford Site has generated large volumes of radioactive liquid effluents. The majority of these effluents have been used strictly for cooling or other supportive functions and have been discharged to ditches and ponds. The 216-U-10 Pond and 216-Z-19 Ditch are two such disposal facilities. These facilities are components of an integrated system of ditches, ponds, and overflow facilities collectively referred to as the U-Pond disposal system. The U-Pond system has been used since 1943 and has received a large variety of radioisotopes from several sources. This study covered tho major aspects of the environment, including wind resuspension, biological uptake and transport, geologic distribution in surface and subsurface sediments, and ground-water impacts. The long-term use of U-Pond and the Z-19 Ditch has resulted in the localized accumulation of transuranic and fission product inventories as a result of sorption and filtration of particulates onto the uppermost sediments

  12. Preface: conservation of european ponds-current knowledge and future needs

    OpenAIRE

    Miracle, Rosa; Oertli, Beat; Céréghino, Régis; Hull, Andrew P.

    2010-01-01

    Ponds are common elements of the landscape with an important role in the global processes of biosphere and biodiversity preservation. Recent research indicates that ecological characteristics of ponds are different from other inland water systems, but scientific knowledge is still insufficient and poor compared to lakes and rivers. Therefore, whilst indicators and conservation tools have been developed for most aquatic systems, there is also a gap between existing basic information on pond ec...

  13. The welfare state, pensions, privatization: the case of Social Security in the United States.

    Science.gov (United States)

    Du Boff, R B

    1997-01-01

    In all high-income nations, the welfare state is under challenge, with particular concern voiced about the burden of retirement pensions on the public fisc and on younger workers. The strongest drive against social insurance is taking place in the United States, which has less of it than other nations and appears to be in the best position to meet future entitlement claims. In this article, the author examines the liabilities that the U.S. Social Security system is likely to incur over the next 35 years and finds that there is little danger that the system will fall into insolvency. Privatizing Social Security is not necessary to assure the integrity of future pension benefits. Furthermore, the cost-benefit ratio of privatization appears to be unfavorable, as borne out by the mandatory private pension plan in effect in Chile. Some wealthy nations will face greater demographic strains than the United States, but all need to retain the welfare state as a foundation for future changes in the world of work.

  14. A comparison between evaporation ponds and evaporation surfaces as a source of the concentrated salt brine for salt gradient maintenance at Tajoura solar pond

    International Nuclear Information System (INIS)

    Ramadan, Abdulghani M.; Agha, Khairy R.; Abughres, M.

    2012-01-01

    One of the main problems that negatively affect the operation of salt gradient solar ponds and influence its thermal stability is the maintenance of salt gradient profile. Evaporation pond (EP) is designed to generate the salt which lost upward salt diffusion from the lower convective zone (LCZ) of the solar pond. Another attractive method is the evaporation surface facility (ES). Regions with moderate to high precipitation favor Evaporation Surface over Evaporation Ponds. Dry climates will generally favor Evaporation Ponds for the brine re-concentration. In previous studies [1-3], the authors have shown that the (EP) of Tajoura's Experimental Solar Pond (TESP) is under sized and can provide only about 30% of the salt required by a Salt Gradient Solar Pond (SGSP). The anticipated size of (EP) was estimated and presented in those studies under different design conditions, including Summer, Autumn and Spring designs, while the winter design was excluded due to the low rates of net evaporation during the winter season. In addition, the results presented were predicted for the first three years of operation. The daily variations of brine concentration in the (EP) of (TESP) and those based on different designs were predicted and discussed under different scenarios. The quantities of brine provided by the evaporation pond and that required by SGSP were predicted for both cases of surface water flushing (fresh water and sea-water) under the different design conditions as shown in Table 1. This paper investigates the differences between (EP) and (ES) both as a source for salt brine generation by evaporation. The effect of (EP) depth on the area ratio and daily variations of salt concentrations for three years of operation is shown. Results show that evaporation can be a reasonable method for salt brine generation. Reducing the depth of (EP) improves the capability of (EP) for brine re-concentration. It also increases the (EP) surface area for the same quantity of

  15. Biological removal of algae in an integrated pond system

    CSIR Research Space (South Africa)

    Meiring, PGJ

    1995-01-01

    Full Text Available A system of oxidation ponds in series with a biological trickling filter is described. It was known that this arrangement was incapable of reducing effectively the levels of algae present in the pond liquid even though nitrification was effected...

  16. Thaw pond dynamics and carbon emissions in a Siberian lowland tundra landscape

    Science.gov (United States)

    van Huissteden, Ko; Heijmans, Monique; Dean, Josh; Meisel, Ove; Goovaerts, Arne; Parmentier, Frans-Jan; Schaepman-Strub, Gabriela; Belelli Marchesini, Luca; Kononov, Alexander; Maximov, Trofim; Borges, Alberto; Bouillon, Steven

    2017-04-01

    Arctic climate change induces drastic changes in permafrost surface wetness. As a result of thawing ground ice bodies, ice wedge troughs and thaw ponds are formed. Alternatively, ongoing thaw may enhance drainage as a result of increased interconnectedness of thawing ice wedge troughs, as inferred from a model study (Liljedahl et al., 2016, Nature Geoscience, DOI: 10.1038/NGEO2674). However, a recent review highlighted the limited predictability of consequences of thawing permafrost on hydrology (Walvoord and Kurylyk, 2016, Vadose Zone J., DOI:10.2136/vzj2016.01.0010). Overall, these changes in tundra wetness modify carbon cycling in the Arctic and in particular the emissions of CO2 and CH4 to the atmosphere, providing a possibly positive feedback on climate change. Here we present the results of a combined remote sensing, geomorphological, vegetation and biogechemical study of thaw ponds in Arctic Siberian tundra, at Kytalyk research station near Chokurdakh, Indigirka lowlands. The station is located in an area dominated by Pleistocene ice-rich 'yedoma' sediments and drained thaw lake bottoms of Holocene age. The development of three types of ponds in the Kytalyk area (polygon centre ponds, ice wedge troughs and thaw ponds) has been traced with high resolution satellite and aerial imagery. The remote sensing data show net areal expansion of all types of ponds. Next to formation of new ponds, local vegetation change from dry vegetation types to wet, sedge-dominated vegetation is common. Thawing ice wedges and thaw ponds show an increase in area and number at most studied locations. In particular the area of polygon centre ponds increased strongly between 2010 and 2015, but this is highly sensitive to antecedent precipitation conditions. Despite a nearly 60% increase of the area of thawing ice wedge troughs, there is no evidence of decreasing water surfaces by increasing drainage through connected ice wedge troughs. The number of thaw ponds shows an equilibrium

  17. PRACTICAL SOLUTIONS FOR ECOLOGICAL RECONSTRUCTION OF GERAI POND

    Directory of Open Access Journals (Sweden)

    Alexandru Dimache

    2012-06-01

    Full Text Available Gerai Pond is one of the last natural wetlands along the Danube, being connected to natural flooding regime of the Danube and is situated at the confluence of the Danube River, between Gârcov and Islaz localities, in Olt County. Aquatic vegetation characteristic is a favorable habitat for two species of conservation concern that nest along the Danube: red duck and pygmy cormorant. During 1961-1970, Gerai Pond has changed radically due to impoundment and draining under the program of drainage and flood meadow regulate of the Danube. These works of land reclamation for decreasing surface lakes and wetlands and water stagnation period, had reduced the breeding areas of the two species mentioned above. Ecological reconstruction of Gerai Pond project was conducted by Technical University of Civil Engineering of Bucharest in collaboration with E.P.A. Olt and W.W.F.-Romania. The project was based on a hydrological study (which included a component related to flooding for the area analyzed, study in which were highlighted the areas which have water access to and from the Pond, surfaces and volumes of water corresponding to different rates, the optimal level of water for restoration of the nesting area. Based on this study were identified the areas of artificial feed-water discharge to and from the Danube. This paper presents the possible solutions for ecological reconstruction of Gerai Pond, identified in the project.

  18. Preliminary study on the coconut crab (Birgus latro rearing in captive pond

    Directory of Open Access Journals (Sweden)

    . Sulistiono

    2009-01-01

    Full Text Available Preliminary study on the coconut crab (Birgus latro rearing was employed in captive pond at Citarate village, Lebak Regency (Banten from May to December 2008.  The rearing activity was done in captive pond sized 5x5x1.3 m3 divided into 22 smaller ponds sized 1x1x1.3 m3 with a hiding hole (constructed by pile stones, supported by two small ponds sized 30x40x40 cm3 for sea and fresh water stocks, respectively.  The coconut crab (N=22 individuals at cement pond I and N=18 individuals at cement pond II were reared in each small ponds (density: 1 individual/pond, feed by a piece of coconut (20-50 gram per individual in each cement pond.  The coconut and the water (sea and fresh water were replaced for 2-3 times per week. Result of the study showed that survival rate was around 82% (ponds I and 83% (ponds II, and mortality was around 18% (ponds I and 18% (ponds II. The coconut crab growth at captive ponds I and II were around 17.5 and 52 gram per month, respectively. Key words:  Preliminary study, rearing, coconut crab (Birgus latro   ABSTRAK Uji coba pemeliharaan kepiting kelapa (Birgus latro dilakukan di kolam penangkaran di Desa Citarate, Kabupaten Lebak (Banten pada Bulan Mei sampai Desember 2008.  Kegiatan pemeliharaan dilakukan pada bak semen berukuran 5x5x1.3 m2 yang terbagi menjadi 22 bak semen lebih kecil yang berukuran 1x1x1.3 m3 dilengkapi dengan tempat persembunyian (berupa tumpukan batu, serta bak kecil sebagai tempat penampungan air laut dan tawar masing-masing berukuran 30x40x40 cm3. Kepiting kelapa (N=22 ekor pada kolam I dan N=18 pada kolam II dimasukkan ke dalam setiap kolam (kepadatan 1 individu/kolam, dan diberikan pakan utama berupa potongan kelapa ukuran sekitar 20-50 gram per individu per kolam.  Penggantian kelapa dan air (tawar dan laut dilakukan 2-3 kali per minggu. Hasil uji coba pemeliharaan kepiting kelapa menunjukkan bahwa tingkat sintasan (survival rate di kolam peliharaan berkisar 82 (Kolam I dan 83% (Kolam II

  19. Social support and marginalization as determinants of prenatal care in women with social security in Mexico.

    Science.gov (United States)

    Maldonado-Cisneros, Maritza; Medina-Gómez, Oswaldo Sinoe

    2018-01-01

    Prenatal care ensures favorable results for maternal-fetal health and, to that end, it must be provided early, periodically, comprehensively and with high coverage. To find out the social determinants of prenatal care in women affiliated to the Mexican Institute of Social Security during 2014. Cross-sectional study where the association of social conditions, social support and family functioning with inadequate prenatal care was analyzed. A descriptive analysis was performed; hypothesis tests were used with chi-square (95% level of confidence). The prevalence ratio and Mann-Whitney's U-test were estimated to compare medians and logistic regression. Of the interviewed women, 58.1% had inadequate prenatal care, mainly associated with unplanned pregnancy, poor social support, low level of education and higher marginalization. Not having leaves of absence granted by employers was the main barrier in those women who did not attend health services. There is a need for strategies to be designed and implemented to enable understanding the interaction between different biological and social dimensions of the health-disease process and reduce health inequities that affect pregnant women, in order to achieve good prenatal care and to implement alternative models guaranteeing its efficiency. Copyright: © 2018 SecretarÍa de Salud.

  20. Hacking Facebook Privacy and Security

    Science.gov (United States)

    2012-08-28

    REPORT Hacking Facebook Privacy and Security 14. ABSTRACT 16. SECURITY CLASSIFICATION OF: When people talk about hacking and social networks , they’re...12211 Research Triangle Park, NC 27709-2211 15. SUBJECT TERMS Facebook , Privacy, Security, Social Network Dr. Jeff Duffany (Advisor), Omar Galban...transmit personal information that many people that they dare not do it personally. FACEBOOK PLATFORM Facebook is a popular social networking