Control techniques for nitrogen oxides from stationary sources.

Includes bibliographies.

Public Health Service publication.

Mode of access: Internet.

Interstate effects surveillance network : tabulation of data, Jan.-Dec. 1969.

Chiefly tables.

COMPARAÇÃO DE MEDIDAS CEFALOMÉTRICAS DOS ESPAÇOS AÉREOS NASO E OROFARÍNGEO ENTRE RESPIRADORES NASAIS E ORAIS

A literatura tem evidenciado que o modo respiratório alterado influencia nos aspectos estruturais e funcionais do sistema estomatognático. Objetivo: Comparar as medidas cefalométricas dos espaços aéreos naso e orofaríngeo entre respiradores nasais e com modo respiratório alterado (orais ou oronasais). Método: Este estudo de caráter exploratório e retrospectivo utilizou os prontuários de pacientes atendidos na Clínica de Ortodontia, compreendendo o período de 2000 a 2009, sendo que dos 87 indivíduos (má oclusão Classe I de Angle) que compuseram a amostra, 55 eram respiradores nasais (RN) e 32 apresentavam modo respiratório alterado (RON - oronasal ou oral), 47 pertenciam ao sexo feminino e 40 ao masculino, com idades entre 8,75 e 22 anos (média de 14,78 anos). Foram analisadas as telerradiografias em norma lateral, não submetidos a tratamento ortodôntico ou fonoaudiológica prévios. As variáveis de análise foram: idade, sexo, raça, modo respiratório e análise dos espaços naso e orofaringeano pelo método adotado por Zanelato. Por meio de análise estatística (teste t de Student e quiquadrado), os resultados foram interpretados quanto à sua significância. Resultados: Houve diferença estatisticamente significante quanto à idade dos grupos (RN>RON); de prevalência de homens (maior no grupo RON), de leucodermas em ambos os grupos, de via aérea súpero-anterior (menor no grupo RON) e tonsila faríngea (maior no grupo RON); e de tamanho de tonsila faríngea em melanodermas. As demais variáveis de análise não evidenciaram diferenças estatisticamente significantes. Conclusão: As medidas cefalométricas do espaço nasofaringeano (menor no grupo RON) e da tonsila faríngea (maior no grupo RON) diferiram entre os grupos e o espaço orofaringeano não se mostrou diferente entre os grupos. Demais fatores, que não exclusivamente o espaço nasofaríngeo e a tonsila faríngea, podem predispor o indivíduo à respiração oronasal ou predominantemente oral e o ortodontista, em sua rotina clínica, pode avaliar objetivamente as particularidades de cada caso e, desta forma, proceder com condutas adequadas o mais precocemente possível.

The relationships between a developing regional airport and local commerce and industry

This thesis describes an investigation into a Local Authority's desire to use its airport to aid regional economic growth. Short studies on air freight. the impact of an airport on the local economy, incoming tourism. and the factors influencing airlines in their use of airports, show that this desire is valid. but only in so far as the airport enables air services to be provided. A survey of airlines. conducted to remedy some deficiencies in the documented knowledge on airline decision-making criteria. indicates that there is cause for concern about the methods used to develop air services. A comparison with the West German network suggests that Birmingham is underprovided with international scheduled flights, and reinforces the survey conclusion that an airport authority must become actively involved in the development of air services. Participation in the licence applications of two airlines to use Birmingham Airport confirms the need for involvement but without showing the extent of the influence which an airport authority may exert. The conclusion is reached that in order to fulfill its development potential, an airport must be marketed to both the general public and the air transport industry. There is also a need for a national air services plan.

Turkish Security Policymaking on Nuclear Issues: Conceptualizing Advanced Cooperative Security Strategies

Turkey is a non-nuclear member of a nuclear alliance in a region where nuclear proliferation is of particular concern. As the only North Atlantic Treaty Organization (NATO) member that has a border with the Middle East, Turkish officials argue that Turkey cannot solely rely on NATO guarantees in addressing the regional security challenges. However, Turkey has not been able to formulate a security policy that reconciles its quest for independence, its NATO membership, the bilateral relationship with the United States, and regional engagement in the Middle East. This dissertation assesses the strategic implications of Turkey’s perceptions of the U.S./NATO nuclear and conventional deterrence on nuclear issues. It explores three case studies by the process tracing of Turkish policymakers’ nuclear-related decisions on U.S. tactical nuclear weapons deployed in Europe, national air and missile defense, and Iran’s nuclear program. The study finds that the principles of Turkish security policymaking do not incorporate a fundamentally different reasoning on nuclear issues than conventional deterrence. Nuclear weapons and their delivery systems do not have a defining role in Turkish security and defense strategy. The decisions are mainly guided by non-nuclear considerations such as Alliance politics, modernization of the domestic defense industry, and regional influence. The dissertation argues that Turkey could formulate more effective and less risky security policies on nuclear issues by emphasizing the cooperative security approaches within the NATO Alliance over confrontational measures. The findings of this dissertation reveal that a major transformation of Turkish security policymaking is required to end the crisis of confidence with NATO, redefinition of the strategic partnership with the US, and a more cautious approach toward the Middle East. The dissertation argues that Turkey should promote proactive measures to reduce, contain, and counter risks before they develop into real threats, as well as contribute to developing consensual confidence-building measures to reduce uncertainty.

A national satellite-based land-use regression model for air pollution exposure assessment in Australia

Land-use regression (LUR) is a technique that can improve the accuracy of air pollution exposure assessment in epidemiological studies. Most LUR models are developed for single cities, which places limitations on their applicability to other locations. We sought to develop a model to predict nitrogen dioxide (NO2) concentrations with national coverage of Australia by using satellite observations of tropospheric NO2 columns combined with other predictor variables. We used a generalised estimating equation (GEE) model to predict annual and monthly average ambient NO2 concentrations measured by a national monitoring network from 2006 through 2011. The best annual model explained 81% of spatial variation in NO2 (absolute RMS error=1.4 ppb), while the best monthly model explained 76% (absolute RMS error=1.9 ppb). We applied our models to predict NO2 concentrations at the ~350,000 census mesh blocks across the country (a mesh block is the smallest spatial unit in the Australian census). National population-weighted average concentrations ranged from 7.3 ppb (2006) to 6.3 ppb (2011). We found that a simple approach using tropospheric NO2 column data yielded models with slightly better predictive ability than those produced using a more involved approach that required simulation of surface-to-column ratios. The models were capable of capturing within-urban variability in NO2, and offer the ability to estimate ambient NO2 concentrations at monthly and annual time scales across Australia from 2006–2011. We are making our model predictions freely available for research.

Instituciones pedagógicas extranjeras : Le Centre National D'Education de plein air de Suresnes.

Se describen brevemente las instalaciones y la organización de esta institución pedagógica francesa, cuyo objetivo es la formación de maestros especializados en la enseñanza de alumnos con deficiencias mentales, sensoriales y motóricas. En cuanto al alumnado, vive en la escuela en régimen de seminternado y su estancia puede variar desde unos meses hasta el ciclo de escolaridad completo.

Producing leisure spaces out of thin air: the case of the Countryside Stewardship Scheme

This paper examines the growing dysfunction between the apparently increasing significance of diverse leisure practices in the countryside and the largely unchanging official response towards them. Although there is recognition in the recent rural White Paper (DOE and MAFF, 1995) that access is essential to enjoying the countryside, the construction of this term is dubious, since paid access agreements, based on producer requirements, are favoured over any form of demand-driven freedom to roam. Using the Countryside Stewardship Scheme (CSS) as an example of the incentive structure developed to promote this policy, the paper applies Plato's simulacrum as a reading of how this process is being utilised to underpin the dominant rights associated with rural property interests. In particular, the paper makes the point that rather than representing the corollary of a market situation, as its supporters claim, the CSS involves government grant for the eclectic provision of short term licences over ground which remains unmapped as anything other than its continued agricultural use. In concluding, the paper asserts that rather than representing an increase in the availability of leisure sites in the countryside, the CSS and other schemes represent a diversion from the wider and deeper socio-cultural process of continued wealth and power redistribution.

Defining national identity? Visiting the architectural spaces of the Museum of Scotland

National Cultures construct identities by producing meanings about the nation with which we can identify, meanings which are contained in the stories which are told about it, memories which connect its present within its past, and images which are constructed of it. A museum, the repository of a nation’s culture, which connects the past to the present through recounting stories about the artefacts of past cultures is clearly significant in representing the culture of a nation.

This paper explores the architectural spaces of the new Museum of Scotland, which opened in Edinburgh in November 1998. The museum has opened at a crucial time in Scottish history. The Scottish cultural renaissance is manifested in the increase in cultural production and call for Scottish cultural institutions. Parallel to this renaissance are political developments with the re-creation of a Scottish Parliament in 1999. When the idea of ‘Scotland’ is itself in a state of flux, the stories of the nation told in the museum, which attempt to give a sense of location, a connection between the individual and the nation are especially important.

Thus, issues of identity and ‘self’ are crucially important in understanding the contemporary museum. Within this, the relations between the production of these narratives and their consumption by the public are little understood. The majority of studies have concentrated, although not exclusively, on the production of museum displays, primarily with the "politics and poetics" of display. This paper analyses the relationship between producer and consumer within the Museum of Scotland, attempting to reconnect the forces of production and consumption. In doing so, it focuses primarily on the differing conceptions of the ability of the Museum to be able to narrate the nation.

Based on interviews both with museum staff and with visitors to the museum, it argues that an understanding of the relationship between the museum and Scottish national identity can only be considered through an understanding of the tension between the producers’ intentions and the way in which consumers conceptualise the museum as a space for "telling the nation".

The National Morbidity, Mortality, and Air Pollution Study Database in R

The NMMAPS data package contains daily mortality, air pollution, and weather data originally assembled as part of the National Morbidity,Mortality, and Air Pollution Study (NMMAPS). The data have recently been updated and are available for 108 United States cities for the years 1987--2000. The package provides tools for building versions of the full database in a structured and reproducible manner. These database derivatives may be more suitable for particular analyses. We describe how to use the package to implement a multi-city time series analysis of mortality and PM(10). In addition we demonstrate how to reproduce recent findings based on the NMMAPS data.

Ozone and Mortality: A Meta-Analysis of Time-Series Studies and Comparison to a Multi-City Study (The National Morbidity, Mortality, and Air Pollution Study)

While many time-series studies of ozone and daily mortality identified positive associations,others yielded null or inconclusive results. We performed a meta-analysis of 144 effect estimates from 39 time-series studies, and estimated pooled effects by lags, age groups,cause-specific mortality, and concentration metrics. We compared results to estimates from the National Morbidity, Mortality, and Air Pollution Study (NMMAPS), a time-series study of 95 large U.S. cities from 1987 to 2000. Both meta-analysis and NMMAPS results provided strong evidence of a short-term association between ozone and mortality, with larger effects for cardiovascular and respiratory mortality, the elderly, and current day ozone exposure as compared to other single day lags. In both analyses, results were not sensitive to adjustment for particulate matter and model specifications. In the meta-analysis we found that a 10 ppb increase in daily ozone is associated with a 0.83 (95% confidence interval: 0.53, 1.12%) increase in total mortality, whereas the corresponding NMMAPS estimate is 0.25%(0.12, 0.39%). Meta-analysis results were consistently larger than those from NMMAPS,indicating publication bias. Additional publication bias is evident regarding the choice of lags in time-series studies, and the larger heterogeneity in posterior city-specific estimates in the meta-analysis, as compared with NMAMPS.

Revising the National Ambient Air Quality Standards: The integration of science and policy

Under the Clean Air Act, Congress granted discretionary decision making authority to the Administrator of the Environmental Protection Agency (EPA). This discretionary authority involves setting standards to protect the public's health with an "adequate margin of safety" based on current scientific knowledge. The Administrator of the EPA is usually not a scientist, and for the National Ambient Air Quality Standard (NAAQS) for particulate matter (PM), the Administrator faced the task of revising a standard when several scientific factors were ambiguous. These factors included: (1) no identifiable threshold below which health effects are not manifested, (2) no biological basis to explain the reported associations between particulate matter and adverse health effects, and (3) no consensus among the members of the Clean Air Scientific Advisory Committee (CASAC) as to what an appropriate PM indicator, averaging period, or value would be for the revised standard. ^ This project recommends and demonstrates a tool, integrated assessment (IA), to aid the Administrator in making a public health policy decision in the face of ambiguous scientific factors. IA is an interdisciplinary approach to decision making that has been used to deal with complex issues involving many uncertainties, particularly climate change analyses. Two IA approaches are presented; a rough set analysis by which the expertise of CASAC members can be better utilized, and a flag model for incorporating the views of stakeholders into the standard setting process. ^ The rough set analysis can describe minimal and maximal conditions about the current science pertaining to PM and health effects. Similarly, a flag model can evaluate agreement or lack of agreement by various stakeholder groups to the proposed standard in the PM review process. ^ The use of these IA tools will enable the Administrator to (1) complete the NAAQS review in a manner that is in closer compliance with the Clean Air Act, (2) expand the input from CASAC, (3) take into consideration the views of the stakeholders, and (4) retain discretionary decision making authority. ^