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Search Results: 1 - 10 of 335062 matches for " Vérène Wagner "
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A Review of the Epidemiological Methods Used to Investigate the Health Impacts of Air Pollution around Major Industrial Areas
Mathilde Pascal,Laurence Pascal,Marie-Laure Bidondo,Amandine Cochet,Hélène Sarter,Morgane Stempfelet,Vérène Wagner
Journal of Environmental and Public Health , 2013, DOI: 10.1155/2013/737926
Abstract: We performed a literature review to investigate how epidemiological studies have been used to assess the health consequences of living in the vicinity of industries. 77 papers on the chronic effects of air pollution around major industrial areas were reviewed. Major health themes were cancers (27 studies), morbidity (25 studies), mortality (7 studies), and birth outcome (7 studies). Only 3 studies investigated mental health. While studies were available from many different countries, a majority of papers came from the United Kingdom, Italy, and Spain. Several studies were motivated by concerns from the population or by previous observations of an overincidence of cases. Geographical ecological designs were largely used for studying cancer and mortality, including statistical designs to quantify a relationship between health indicators and exposure. Morbidity was frequently investigated through cross-sectional surveys on the respiratory health of children. Few multicenter studies were performed. In a majority of papers, exposed areas were defined based on the distance to the industry and were located from <2?km to >20?km from the plants. Improving the exposure assessment would be an asset to future studies. Criteria to include industries in multicenter studies should be defined. 1. Introduction Industrial areas are characterized by a high density of industries, sharing common infrastructures, such as transport networks, waste water treatment plants, and waste incineration plants. These areas cluster at-risk activities and pollution sources. They have historically attracted, and may still attract, hundreds of employees who have settled in the vicinity of the plants. With extensive urbanization, industrial areas have been embedded in the urban landscape, increasing the nuisances and the exposure of the population. For instance, in the South of France, the industrial area of l’etang de Berre hosts 430 industries classified for the protection of the environment and more than 60% of the Seveso II (referring to the European directive 96/82/CE) plants of the region. About 16 towns representing more than 300,000 inhabitants are exposed to the plumes produced by these plants [1]. People living near major industrial areas are facing complex situations of exposure: occupational and environmental exposure, multiexposure to chemicals combined with exposure to noise, dusts, visual pollution, stress, and so forth The possible associated health risks are of the highest concern to the population. Quantitative health risk assessments, based on the comparison of a
First results of ETMC simulations with Nf=2+1+1 maximally twisted mass fermions
R. Baron,B. Blossier,P. Boucaud,A. Deuzeman,V. Drach,F. Farchioni,V. Gimenez,G. Herdoiza,K. Jansen,C. Michael,I. Montvay,D. Palao,E. Pallante,O. Pène,S. Reker,C. Urbach,M. Wagner,U. Wenger,for the ETM Collaboration
Physics , 2009,
Abstract: We present first results from runs performed with Nf=2+1+1 flavours of dynamical twisted mass fermions at maximal twist: a degenerate light doublet and a mass split heavy doublet. An overview of the input parameters and tuning status of our ensembles is given, together with a comparison with results obtained with Nf=2 flavours. The problem of extracting the mass of the K- and D-mesons is discussed, and the tuning of the strange and charm quark masses examined. Finally we compare two methods of extracting the lattice spacings to check the consistency of our data and we present some first results of ChiPT fits in the light meson sector.
Light hadrons from Nf=2+1+1 dynamical twisted mass fermions
R. Baron,B. Blossier,P. Boucaud,J. Carbonell,A. Deuzeman,V. Drach,F. Farchioni,V. Gimenez,G. Herdoiza,K. Jansen,C. Michael,I. Montvay,E. Pallante,O. Pène,S. Reker,C. Urbach,M. Wagner,U. Wenger,for the ETM Collaboration
Physics , 2011,
Abstract: We present results of lattice QCD simulations with mass-degenerate up and down and mass-split strange and charm (Nf=2+1+1) dynamical quarks using Wilson twisted mass fermions at maximal twist. The tuning of the strange and charm quark masses is performed at three values of the lattice spacing a~0.06 fm, a~0.08 fm and a~0.09 fm with lattice sizes ranging from L~1.9 fm to L~3.9 fm. We perform a preliminary study of SU(2) chiral perturbation theory by combining our lattice data from these three values of the lattice spacing.
Incidental Rickets in the Emergency Department Setting
John V. Zurlo,Shaun R. Wagner
Case Reports in Medicine , 2012, DOI: 10.1155/2012/163289
Abstract: Vitamin D deficiency rickets is a childhood osteomalacia, with impaired skeletal development and potentially skeletal deformities. The radiographic findings of rickets are many but include widening, fraying, and cupping of the metaphysis. Developmental delay and related complications of seizure and tetany have also been reported. This medical entity is often thought of as a classic medical disease of the past. However, it persists, and the recognition of rickets is on the rise. The reemergence of rickets correlates with the increase in the number of children exclusively breastfed and with the frequent use of sun block in the pediatric population. We present two cases of rickets, diagnosed through a visit to the Emergency Department made for unrelated symptoms. These two cases illustrate the importance of diagnosing rickets as an “incidental” finding. With early detection, dietary supplementation can be initiated potentially sparing the patient symptomatic disease.
Incidental Rickets in the Emergency Department Setting
John V. Zurlo,Shaun R. Wagner
Case Reports in Medicine , 2012, DOI: 10.1155/2012/163289
Abstract: Vitamin D deficiency rickets is a childhood osteomalacia, with impaired skeletal development and potentially skeletal deformities. The radiographic findings of rickets are many but include widening, fraying, and cupping of the metaphysis. Developmental delay and related complications of seizure and tetany have also been reported. This medical entity is often thought of as a classic medical disease of the past. However, it persists, and the recognition of rickets is on the rise. The reemergence of rickets correlates with the increase in the number of children exclusively breastfed and with the frequent use of sun block in the pediatric population. We present two cases of rickets, diagnosed through a visit to the Emergency Department made for unrelated symptoms. These two cases illustrate the importance of diagnosing rickets as an “incidental” finding. With early detection, dietary supplementation can be initiated potentially sparing the patient symptomatic disease. 1. Introduction Rickets is a failure of bone mineralization. Vitamin D deficient rickets in the developed world is rare but its recognition is increasing. Rickets can lead to bone deformities as well as developmental delay and related complications of seizure and tetany. Links have also been made between vitamin D deficiency and a predisposition to respiratory infections during infancy [1, 2]. The active form of Vitamin D is 1,25 (OH2) D3 (calcitriol). This active form functions as a hormone, acting upon many systems within the body and is derived from the hepatic and renal metabolism of Vitamin D3 (cholecalciferol). Vitamin D3 may be directly sourced from dietary intake, derived from dietary supplements or produced in the skin with ultraviolet light exposure from precursors [1, 3]. Patients may present to the Emergency Department (ED) with unrelated or nonspecific complaints resulting in plain film and laboratory evaluation. Consequently, Emergency Department physicians and radiologists should be aware of the radiographic and laboratory signs of this disease and be vigilant in their detection. In the emergency room setting, nutritional rickets may be suggested by decreased serum calcium and phosphorus in conjunction with increased serum alkaline phosphatase. Radiographic findings of rickets are many but include widening, fraying, and cupping of the metaphyses. Findings are most pronounced at the ribs, knees, and wrists. In children who bear weight, there may be bowing of the tibia and in children who crawl, bowing of the upper extremity [3]. Radiographic evaluation plays a considerable role
Comparison of mass renormalization schemes for simple model systems
E. V. Stefanovich,R. E. Wagner,Q. Su,R. Grobe
Physics , 2013, DOI: 10.1088/1054-660X/23/3/035302
Abstract: We discuss an alternative method to mass renormalize a quantum field Hamiltonian based on a requirement that the vacuum and single-particle sectors are not self-scattering. We illustrate the feasibility of this method for the concrete example of bosonic quadratic and also quartic interactions. The results are compared with those obtained by the standard renormalization technique based on a spectral analysis of the usual field-based propagators. We also discuss a potential method for renormalizing a quantum field theory in a non-perturbative way using computational methods.
Meat quality in “in door” and “out door” production systems of poultry and swine  [PDF]
Wagner A. G. Araújo, Luiz F. T. Albino, Nilva K. Sakomura, Pedro V. R. Paulino, Anastacia M. Campos
Open Journal of Animal Sciences (OJAS) , 2011, DOI: 10.4236/ojas.2011.13010
Abstract: The meat quality can be influenced by many interacting factors before and after the slaughter. Currently more sustainable production systems are targeted in general, whether or not they have any effect on meat quality. The sustainability is a condition of agroecology and necessarily im- plies on the animal and plant association and succession. A condition for sustainability is to minimize or even eliminate the use of inputs from processes of chemical synthesis. In the case of pigs and poultry, this is feasible by adopting production systems that allows nutria- ents recycle directly on the soil at levels that do not involve pollution. Although we have the understanding that the general principles of sustainability to be observed are universal, the solution is not simple. For each situation a vi- able alternative must be sought, depending on the social, economic, ecological and cultural realities. In tropical and subtropical climates the production of pigs and poultry outdoors can be an appropriate option. This also leads to nutria- ents recycle and promotes a better energy bal- ance of the system. Among the alternatives that can be taken to introduce differentiating factors in meat production as food is the type of pro- duction system, due to its direct impact on the meat quality. These systems have a direct in- fluence through the consumed food, by the conditions of animal wellbeing, physical activity and the environment provided. The performance and meat quality depend on the interaction of genotypes, rearing conditions, pre-slaughter handling and processing of the meat and the carcass. The influence of the rearing system on the animal performance, on the carcass and finally on the meat is the result of the interactive effects among facilities, feeding level and ge-notype used in the production systems. The production of poultry and pigs more extensively tend to get a final product with its own or- ga-noleptic characteristics, changing the meat de-fault color and content, place of fat deposi- tion and the fatty acid profile deposited on the carcass.
Trabalho rural e fatores de risco associados ao regime de uso de agrotóxicos em Minas Gerais, Brasil
Soares, Wagner;Almeida, Renan Moritz V. R.;Moro, Sueli;
Cadernos de Saúde Pública , 2003, DOI: 10.1590/S0102-311X2003000400033
Abstract: this paper aimed to characterize the rural work process in nine counties in minas gerais state, considering socio-demographic indicators, the land tenure structure of farm operations, and work practices related to pesticide use and poisoning data were obtained through the jorge duprat figueiredo foundation for workers' safety and occupational medicine, which applied a questionnaire to 1,064 rural workers from 1991 to 2000. through a logistic regression, risk factors associated with pesticide poisoning were obtained for the carbamate and organophosphate groups. some 50% of interviewees displayed at least moderate pesticide toxicity. risk factors for pesticide poisoning were: last contact with pesticides less than two weeks before the blood cholinesterase test; no use of personal protective equipment by workers applying pesticides; having received instructions from the pesticide salesperson; report of carbamates/organophosphates as the main pesticides used; and working in the counties of teófoli otoni, guidoval, or piraúba. the results emphasize the high level of health risk associated with pesticide use among these rural workers.
Numerical implementation and oceanographic application of the Gibbs potential of ice
R. Feistel,W. Wagner,V. Tchijov,C. Guder
Ocean Science (OS) & Discussions (OSD) , 2005,
Abstract: The 2004 Gibbs thermodynamic potential function of naturally abundant water ice is based on much more experimental data than its predecessors, is therefore significantly more accurate and reliable, and for the first time describes the entire temperature and pressure range of existence of this ice phase. It is expressed in the ITS-90 temperature scale and is consistent with the current scientific pure water standard, IAPWS-95, and the 2003 Gibbs potential of seawater. The combination of these formulations provides sublimation pressures, freezing points, and sea ice properties covering the parameter ranges of oceanographic interest. This paper provides source code examples in Visual Basic, Fortran and C++ for the computation of the Gibbs function of ice and its partial derivatives. It reports the most important related thermodynamic equations for ice and sea ice properties.
Numerical implementation and oceanographic application of the Gibbs potential of ice
R. Feistel1,W. Wagner,V. Tchijov,C. Guder
Ocean Science Discussions (OSD) , 2005,
Abstract: The 2004 Gibbs thermodynamic potential function of naturally abundant water ice is based on much more experimental data than its predecessors, is therefore significantly more accurate and reliable, and for the first time describes the entire temperature and pressure range of existence of this ice phase. It is expressed in the ITS-90 temperature scale and is consistent with the current scientific pure water standard, IAPWS-95, and the 2003 Gibbs potential of seawater. The combination of these formulations provides sublimation pressures, freezing points, and sea ice properties covering the parameter ranges of oceanographic interest. This paper provides source code examples in Visual Basic, Fortran and C++ for the computation of the Gibbs function of ice and its partial derivatives. It reports the most important related thermodynamic equations for ice and sea ice properties.
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