Artículos de revistas: "Exposition des populations à la pollution"

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Il’ina, Valentina, Anna Mitroshenkova, Irina Nalivayko y Ludmila Husnutdinova. "Ontogenetic structure of lichen populations as the index of the condition of the urbanized territories". E3S Web of Conferences 138 (2019): 01023. http://dx.doi.org/10.1051/e3sconf/201913801023.

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The results of population monitoring in lichen indication promote the detection of resistance of lichen species to the pollution of environment. The population of Xanthoria parietina (L.) Th. Fr. on the territory of the city of Samara and in the neighborhood of the Bolshaya Glushitsa settlement (Bolsheglushitsky district, Samara region) (Russia) were studied. For identification of ontogenetic conditions of talluses, the approaches and a nomenclature of population and ontogenetic researches of Magnoliophyta were used. Taking into account the exposition, the projective cover of Ulmus pumila trunks with Xanthoria parietina talluses was revealed. On Ulmus pumila tree stems in the Bolshechernigovsky municipal district of Samara region the prevailing ontogenetic group in populations of Xanthoria parietina is young generative group, within the city it is mature generative group. Talluses in the same course of ontogenetic development have the least area, and then, the vitality, on the western part of a trunk, and the greatest on the south side. At the same time the vital level of tallus directly depends on the level of environmental pollution. The decrease in the number of talluses is related to indexes of density, illumination, natural tree mortality, cuttings, fires, diseases of tree species.

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Carrier, Mathieu, Anne-Marie Séguin, Philippe Apparicio y Dan Crouse. "Les résidences pour personnes âgées de l’île de Montréal appartenant aux parcs social et privé : une exposition inéquitable à la pollution de l’air ?" Cahiers de géographie du Québec 57, n.º 161 (5 de mayo de 2014): 239–56. http://dx.doi.org/10.7202/1024903ar.

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Résumé La qualité des milieux à proximité des résidences pour personnes âgées sur l’île de Montréal, tant celles du parc privé que du parc social, est analysée sous l’angle de la pollution générée par la circulation automobile. Deux types d’indicateurs de polluants sont utilisés pour évaluer la pollution. Les premiers sont basés sur la proximité des axes majeurs de circulation et les seconds estiment, dans un rayon de 200 m, la concentration de NO2. Nos résultats montrent que les résidences privées et celles du parc social se localisent plus souvent à proximité d’axes majeurs de circulation que les résidences de l’ensemble de la population et de la population âgée. Les résidences privées se caractérisent toutefois par des concentrations moindres de NO2 comparativement à ces deux mêmes populations, alors qu’on observe l’inverse pour les résidences du parc social. Ceci s’explique notamment par leur distribution respective au sein du territoire urbanisé.

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Sabirova, Zulfya F., O. V. Budarina, M. V. Vinokurov y N. F. Fattachova. "METHODICAL QUESTIONS OF THE STUDY OF THE INFLUENCE OF AIR POLLUTION ON THE POPULATION’S HEALTH". Hygiene and sanitation 96, n.º 10 (27 de marzo de 2019): 987–89. http://dx.doi.org/10.18821/0016-9900-2017-96-10-987-989.

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On the basis of the analysis and an assessment of publications devoted to the impact of the pollution of atmospheric air on the population’s health and results of own researches in the field of oil processing, petrochemistry, chemistry, metallurgy insufficient informational content and validity of evidential base of “exposition - answer” dependence is established. Methodical questions allowing interpret correctly results of a quantitative assessment of the influence of chemical pollution on the population’s health are considered. The characteristic of informational content, choice criteria of air pollution indices and the state of the population’s health, methods of an assessment and statistical processing of results are given. Advantages of calculated models to study and the description of air pollution are shown.

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Amato-Lourenco, Luis Fernando, Bianca Bonetto Moreno Garcia, Pamela Souza De Almeida, Douglas Rene Rocha Silva, Martha Cristina Motta Godinho Neto, Thais Mauad, Paulo H. N. Saldiva, Maria Eugênio Carretero y Regiani Carvalho Oliveira. "The Exhaled Nitric Oxide (Feno) As A Screening Tool To Assess Air Pollution Exposition In An Elderly Population." ISEE Conference Abstracts 2015, n.º 1 (20 de agosto de 2015): 1415. http://dx.doi.org/10.1289/isee.2015.2015-1415.

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Amato-Lourenco, Luis Fernando, Bianca Bonetto Moreno Garcia, Pamela Souza De Almeida, Douglas Rene Rocha Silva, Martha Cristina Motta Godinho Neto, Thais Mauad, Paulo H. N. Saldiva y Regiani Carvalho Oliveira. "The Exhaled Nitric Oxide (FeNO) As A Screening Tool To Assess Air Pollution Exposition In An Elderly Population". ISEE Conference Abstracts 2015, n.º 1 (20 de agosto de 2015): 1418. http://dx.doi.org/10.1289/isee.2015.2015-1418.

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Castresana, Gabriela Pérez, Elsa Castañeda Roldán, Wendy A. García Suastegui, José L. Morán Perales, Abel Cruz Montalvo y Anabella Handal Silva. "Evaluation of Health Risks due to Heavy Metals in a Rural Population Exposed to Atoyac River Pollution in Puebla, Mexico". Water 11, n.º 2 (5 de febrero de 2019): 277. http://dx.doi.org/10.3390/w11020277.

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The health risks of Emilio Portes Gil’s population, for the exposition to the Atoyac River pollution in the State of Puebla, was evaluated. The objective was to determine the concentration of nine heavy metals by ingesting water from wells and spri ngs. The chronic daily water intake (CDI), hazard quotient (HQ), hazard index (HI), and carcinogenic risk index (CRI) in adults, teenagers, and children were estimated. The results showed that the concentration of Fe, Al, Ni, and Pb in some of the samples exceeded the recommended standards for human consumption and was significantly higher in the dry season. The hazard index (HI), due to the collective intake of metals, was higher in children (> 50% compared to adults), due to the consumption of spring water in the dry season. Risk of noncancerous diseases was not detected in the long term, since the indices did not exceed the unit (reference value). The carcinogenic risk from oral exposure to Cr (CRIchildren = 3.2 × 10−4), was greater than the acceptable limit (1 × 10−6) in the water spring, and Cr and Pb were the main metals that contributed to the potential health risk of the inhabitants. The study showed the risks by the intake of polluted water from the sources of supply in the region, and that the risk is higher in the dry season (> 100% compared with rainy season).

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Перова, S. Perova, Походзей, L. Pokhodzey, Пальцев, Yuriy Paltsev, Рубцова, Nina Rubtsova, Токарский y A. Tokarskiy. "Ensuring of Professional and Ecological Electromagnetic Safety: Problems, State and Solutions". Safety in Technosphere 5, n.º 4 (25 de agosto de 2016): 45–50. http://dx.doi.org/10.12737/23761.

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Assurance of workers and population’s electromagnetic safety represents a big relevance in connection with the increasing electromagnetic pollution both of in-plant and natural environment and increase with respect thereto in risk of health loss. Implementation of the principles for protection against electromagnetic fields (EMF) can be not always realized in practice by time, distance, and application of collective and individual means of protection. The question of human being’s protection against EMF has a high relevance especially in connection with potential carcinogenicity of some ranges and modes for EMF generation. Relevance of enhancement of hygienic standards and control methods for EMF, especially taking into account determination of values not only for falling energy, but for the absorbed one, has been demonstrated. The developed modern principle for solution of the problem related to adequate assessment of EMF exposition using a combination of numerical and experimental dosimetry methods, and investigational studies on animals has been separately considered.

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Kráľová, Katarína y Josef Jampílek. "Impact of Environmental Contaminants on Breast Cancer / Wpływ Zanieczyszczenia Środowiska Na Raka Piersi". Ecological Chemistry and Engineering S 22, n.º 1 (1 de marzo de 2015): 9–44. http://dx.doi.org/10.1515/eces-2015-0001.

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Abstract Breast cancer is the most frequent cancer in women. It is believed that among the causes of breast cancer, hereditary factors account for only 5-10% of risk and the environmental exposures to environmental contaminants account for an additional 30-50% of risk. This paper summarizes findings related to the risk of breast cancer due to exposure to following environmental contaminants: polycyclic aromatic hydrocarbons, polychlorinated biphenyls and dioxins, organochlorine pesticides, organophosphorous pesticides, bisphenol A, phthalates, parabens, organic solvents, atmospheric pollutants, alkylphenols, metals, ionizing radiation, electromagnetic field and light pollution. Results obtained in in vitro experiments with breast cancer cell lines and in vivo with model rodents as well as in population based case-control studies are presented and the mode of action of individual environmental contaminants on mammary gland is discussed. Attention is also devoted to the effects of the timing of exposure to environmental contaminants (mainly exposition during development of the mammary gland) on breast cancer risk. Outcomes of professional exposure to some environmental contaminants on breast cancer risk are analysed as well

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Badilla, Gustavo López, Montserrat Lujan De Leon, Gerardo Vigil Rendón, Raúl Oswaldo Alvarado Valencia, Mayra Faviola Álvarez Rodríguez, Víctor Hugo Ferman Victoria, Nancy Guadalupe González Medina y Elizabeth Vinalay Carbajal. "Correlation Analysis of the Effect of Atmospheric Factors on the Negative Effect on the Health of the Population of Tijuana, Baja California, Mexico". Asian Journal of Basic Science & Research 05, n.º 01 (2023): 67–75. http://dx.doi.org/10.38177/ajbsr.2023.5108.

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This investigation was made to determine the correlation analysis of the presence of the atmospheric factors as air pollution agents as sulfur dioxide (SO2), nitrogen oxides (NOX), ozone (O3) and carbon monoxide (CO), and climatic parameters as relative humidity (RH) and temperature in the generation indices of lung cancer with death of pulmonary symptoms in the Tijuana city, which is considered as one of the most city contaminated in the Mexican Republic. Also were evaluated the health effects of persons in the skin as skin cancer detected in some persons of this border city, by the effect of the exposition for long time to the ultraviolet rays of sun, due to the deterioration of the ozone layer, which was detected by the ozone particles close to the ground surface in this city. In this city are presented air pollutants mentioned above, as the principal air pollutants and addition to the climatic factors as variations of relative humidity (RH) and temperature, were a negative effect n the health of population of this city, specially in the health symptoms mentioned above. To determine the relation of atmospheric factors and the occurrence of health symptoms mentioned above, was made an analysis with the Spearmen analysis. This scientific study was made in 2022.

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Cannavò, S., F. Ferraù, M. Ragonese, L. Curtò, M. L. Torre, M. Magistri, A. Marchese, A. Alibrandi y F. Trimarchi. "Increased prevalence of acromegaly in a highly polluted area". European Journal of Endocrinology 163, n.º 4 (octubre de 2010): 509–13. http://dx.doi.org/10.1530/eje-10-0465.

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ObjectiveDespite the contribution of national registries and population-based reports, data concerning the epidemiology of acromegaly is scanty. In addition, the role of the environmental context has not been investigated.DesignEpidemiology of acromegaly was studied in the province of Messina (Sicily, Italy), focusing on the influence of environmental factors.MethodsFour zones, characterized by different degrees of exposition to environmental toxins due to industrial pollution, were identified in the province: area A (76 338 inhabitants), area B (287 328 inhabitants), area C (243 381 inhabitants), and area D (47 554 inhabitants) at low, middle-low, middle, and high industrial density respectively. We identified all acromegalics who were born and resided in the province of Messina, among patients either referred to our endocrine unit or referred elsewhere but recorded in the archives of the provincial healthcare agency.ResultsIn the province of Messina, we found 64 patients (2 in area A, 24 in area B, 28 in area C, and 10 in area D). Macroadenomas were 60%, the male/female ratio was 1, and mean age at diagnosis (±s.e.m.) was 45.4±1.6 years. Overall, prevalence was 97 c.p.m. in the province (26 c.p.m. in area A, 84 c.p.m. in area B, 115 c.p.m. in area C, and 210 c.p.m. in area D). Risk ratio (RR), calculated in every area assuming area A as a reference, showed an increased risk of developing acromegaly in people residing in area D (RR=8.03; P<0.0014).ConclusionThis study confirms the prevalence of acromegaly reported recently. The increased risk of developing this disease in area D suggests that the pathogenetic role of environmental context needs to be better evaluated.

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Sousa, T. C. M., C. Barcellos, A. F. Oliveira, J. Schramm y L. Garbayo. "The environmental burden of diarrhea in young children attributable to inadequate sanitation in Brazil". Journal of Water, Sanitation and Hygiene for Development 4, n.º 3 (9 de mayo de 2014): 509–20. http://dx.doi.org/10.2166/washdev.2014.129.

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The Global Burden of Disease is the official metrics of World Health Organization in use to support public health evidence-based decision-making. It has been systematically used to assess environmental risk factors such as unsafe Water, Sanitation and Hygiene (WASH), as part of the measurement of Environmental Burden (EB). This article reports on the first study in Brazil that estimates the EB attributable to unsafe WASH associated with diarrhea for children under five years old for the country and macro-regions for 1998. The EB of diarrhea for this subgroup was estimated using the population attributable fraction (PAF) method for four scenarios of exposition to unsafe WASH. Results of PAF were multiplied by the EB obtained from the 1998 Brazilian GDB Study. The regions with higher EB for children below five years old were north and northeast, both predominantly rural. The EB attributable to unsafe WASH was 15% in 1998. The estimation of the EB of diarrhea contributes to the re-assessment of Brazil's attainment of the Millennium Development Goals (MDG) in both health and environmental dimensions. Results obtained indicated that the country's precarious conditions of WASH in rural areas are below the goals of MDG, as well as in impoverished urban areas.

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Manus, Jean-Marie. "Exposition des populations aux pesticides". Revue Francophone des Laboratoires 2017, n.º 491 (abril de 2017): 75. http://dx.doi.org/10.1016/s1773-035x(17)30131-4.

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M, J. M. "Exposition des populations aux pesticides". Revue Francophone des Laboratoires 2017, n.º 492 (mayo de 2017): 73. http://dx.doi.org/10.1016/s1773-035x(17)30171-5.

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Chetverkina, Kristina V., S. V. Kleyn y V. M. Chigvintsev. "HYGENIC ASSESSMENT OF DYNAMICS OF CHLOROFORM EXPOSITION IN PERM REGION AND IT'S IMPACT ON CAUSING DISEASES OF THE BLOOD, BLOOD-FORMING ORGANS AND CERTAIN DISORDERS INVOLVING IMMUNE MECHANISM AMONG CHILDREN". Hygiene and sanitation 97, n.º 1 (15 de enero de 2018): 29–34. http://dx.doi.org/10.18821/0016-9900-2018-97-1-29-34.

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On the basis of the system review, the relevance of the problem of the chloroform content in the drinking water of centralized drinking-water supply systems in the Perm Territory is confirmed. The comparative characteristic with the average Russian indices is presented. Insufficient volume of information containing data on the impact of the oral intake of chloroform on the blood system was established. There are presented results of the research content of chloroform in water samples from centralized drinking water supply in the cities of Perm region, as well as in the blood of the child population aged from 3 to 13 years living in these areas and consuming water under investigation in the period from 2011 to 2015. A long-term dynamics of the content of chloroform, contained in samples of drinking water and in bio-environments is described. A mathematical simulation of the dependence of the chloroform content in the blood as an exposure marker on the concentration of chloroform in water was carried out. As a result of the analysis of the prevalence rate of diseases of the blood system, hematopoietic organs and certain disorders involving the immune mechanism in the child population, there was established the relevance of differences between the territories of Permsky Krai with surface and underground water supply. The dynamics of the chloroform content in water and morbidity according to the class of blood diseases, hematopoietic organs and certain disorders involving the immune mechanism is presented and described. The association between the exposure to the oral intake of chloroform with drinking water with a morbidity on the class of diseases of the blood system was established on the basis of constructing a mathematical model. The conclusion about the legitimacy of information on the effect of the oral intake of chloroform on the blood system, hematopoietic organs and certain disorders involving the immune mechanism is presented.

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Quenel, P., A. Blateau, P. Chaud, T. Cardoso, V. Boudan, A. Malon, C. Suivant et al. "P6 - Exposition au méthylmercure des populations de la Guyane française". Revue d'Épidémiologie et de Santé Publique 53, n.º 4 (septiembre de 2005): 430–31. http://dx.doi.org/10.1016/s0398-7620(05)84634-6.

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Nikasinovic, L. "Exposition prénatale à la pollution atmosphérique extérieure et grossesse". Revue de médecine périnatale 9, n.º 3 (septiembre de 2017): 134–45. http://dx.doi.org/10.1007/s12611-017-0417-9.

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Girard, Max. "Les dioramas". Social Sciences and Missions 33, n.º 3-4 (24 de septiembre de 2020): 243–71. http://dx.doi.org/10.1163/18748945-bja10004.

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Résumé Le but de cet article est d’ étudier l’ utilisation des dioramas missionnaires à l’ exposition coloniale de Paris en 1931. Les dioramas y deviennent les vecteurs les plus utilisés par les missionnaires catholiques pour représenter le contact avec les populations colonisées et leur rôle dans la « mission civilisatrice ». Les différents types de dioramas qui expriment une vision paternaliste des « Autres » sont de moins en moins utilisés à partir de l’ exposition de 1937, car les organisateurs leur préfèrent des vecteurs plus dynamiques comme le cinéma ou les congrès qui montrent l’ universalité et le dynamisme de l’ Eglise.

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André*, Paulo, Jefferson Vieira y Edimar Bocchi. "Development of an Exposition Device to Evaluate the Effects on Heart Failure of a Controlled Air Pollution Exposition". ISEE Conference Abstracts 2014, n.º 1 (20 de octubre de 2014): 2437. http://dx.doi.org/10.1289/isee.2014.p2-508.

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Eilstein, D. "Exposition prolongée à la pollution atmosphérique et mortalité par pathologies respiratoires". Revue Française d'Allergologie 50, n.º 2 (marzo de 2010): 51–61. http://dx.doi.org/10.1016/j.reval.2010.01.007.

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Eilstein, D. "Exposition prolongée à la pollution atmosphérique et mortalité par pathologies respiratoires". Revue des Maladies Respiratoires 26, n.º 10 (diciembre de 2009): 1146–58. http://dx.doi.org/10.1016/s0761-8425(09)73532-6.

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Ardiansyah, Aland y Zulfikarni Zulfikarni. "KONTRIBUSI KETERAMPILAN MEMBACA PEMAHAMAN TERHADAP KETERAMPILAN MENULIS TEKS EKSPOSISI SISWA KELAS VIII SMP NEGERI 13 PADANG". Pendidikan Bahasa Indonesia 9, n.º 1 (20 de febrero de 2020): 16. http://dx.doi.org/10.24036/108259-019883.

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ABSTRACT This article reveals the contribution of skills reading comprehension to writing skills text exposition grade students VIII SMP Negeri Padang 13. The purpose of this research there are three. First, it describes the skills of reading comprehension grade VIII SMP Negeri 13Padang. Second, it describes the writing skills text eksposition grade VIII SMP Negeri 13Padang. Third, describing the contribution of the intermediate reading comprehension against writing skills text exposition grade VIII SMP Negeri 13 Padang. This research type is quantitative descriptive method. The desain used in this research is the design contribution. This research population is grade VIII SMP Negeri Padang are registered on the 13th school year 2019/2020, i.e. as many as 288 students. The sample in this research are determined by propotional random sampling of 20% of the populations, i.e. 54 students. Research data is a score test results intermediate reading comprehension and score the writing skills test result text exposition. The data obtained through two types of tests i.e. objective tests to measure the skills of reading comprehension text eksposition and performance tests to measure the skills of writing a text eksposition. The results of the research there are three. First, the skills of reading comprehension grade VIII SMP Negeri Padang 13 are on more than enough qualifications (LdC) by the value of the average 75.41. Second, the skills of writing text exposition grade VIII SMP Negeri Padang 13 are on good qualifications (B) with an average of 77.37. Third, there is a contribution of reading skills in the exposition of text to the skills of writing exposition texts of class grade VIII SMP Negeri Padang 13 at 62.77%. Kata kunci: Kontribusi, Keterampilan, Membaca Pemahaman, Menulis, Teks Eksposisi.

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Zaitseva, N. V., M. A. Zemlianova y Oleg V. Dolgikh. "GENOMIC, TRANSCRIPTOMIC AND PROTEOMIC TECHNOLOGIES AS A MODERN TOOL FOR HEALTH DISORDERS DIAGNOSTICS, ASSOCIATED WITH THE IMPACT OF ENVIRONMENTAL FACTORS". Hygiene and sanitation 99, n.º 1 (15 de enero de 2020): 6–12. http://dx.doi.org/10.33029/0016-9900-2020-99-1-6-12.

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Introduction. Today, it is relevant to use modern critical technologies for identifying and evaluating the negative effects associated with the effects of chemicals at the stages of pre-nosological changes. This improves the efficiency of the early detection of progress in pre-pathological conditions prior to the onset of pronounced functional changes and the aggravation of the disease. The use of molecular diagnostic methods based on genomic, transcriptomic, and proteomic analysis technologies is one of the most promising approaches. Aim of the work is an analysis of both aspects and practical use of the modern critical technologies capabilities (genomic, transcriptomic and proteomic technologies) in the implementation of biomedical and experimental studies for the tasks of the detection biomarkers of negative effects of chemical risk factors on the example of exposure conditions with aluminum compounds. Material and methods. The proteomic analysis was carried out by the method of two-dimensional electrophoresis, polymorphism of alleles and genotypes of candidate genes by a real-time polymerase chain reaction. The transcriptome state was assessed based on the results of gene expression studies. The expression of membrane and serum proteins was studied by biochemical and immunological methods analysis. Statistical processing of the results was carried out in the systems “Gencalculator,” “Gene Expert” and online program “SNPStats”. Results. The results of using proteomic analysis technologies made it possible to identify proteins annexin-13, SH3-domain protein-RF3, cathepsin L1 and, accordingly, genes CTSL, SH3RF3, THO complex subunit 2 as Ohmic markers of aerogenic exposure of inorganic compounds. The results of the analysis of gene polymorphism in the population exposed to environmental pollution allowed establishing the changed frequency of variant alleles and genotypes of genes: immune control - TLR4 (toll-like receptor); vascular factors - eNOS rs1799983 (endothelial NOsintase); detoxification - coproporphyrinogen oxidase CPOX (rs1131857), cytochrome P450 CYP1A1 (rs 1048943); neuro-humoral regulation of ANKK1 rs1800497 (dopamine receptor gene) and HTR2A rs7997012 (serotonin receptor gene). The results of gene expression analysis made it possible to establish negative transcriptomic effects induced by exposure to amphoteric metals due to the isolation of specific CD4+, CD8+, CD16+ cell phenotypes expressing the proteomic profile gene of blood plasma lipoprotein A (LPA gene). Discussion. The obtained results correspond data of a number of scientific studies, noting the importance of identifying polymorphic deviations of genes determining the individual risk of health problems in a variety of stressful environmental factors affecting humans. Minor genotypes of candidate genes under conditions of excessive contamination with amphoteric metal compounds significantly increase the risk of deviations in immune regulation indices, which modifies apoptosis mechanisms, which are crucial for the formation of atopy and onco-proliferation. Conclusion. The use of genome, transcriptomic and proteomic technologies as a modern tool for the diagnostics of health disorders allowed justifying the set of priority exposition and effect Ohmic-markers, associated with aerogenic effect of amphoteric metals, which have a modifying effect on the pathogenetic mechanisms of the formation of disorders of nervous and immune systems, the 1st and 2nd phase of detoxification, the likelihood of vascular disorders and onco-proliferative processes.

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Feith, Marek, Tomáš Vičar, Jaromír Gumulec, Martina Raudenská, Anette Gjörloff Wingren, Michal Masařík y Jan Balvan. "Quantitative Phase Dynamics of Cancer Cell Populations Affected by Blue Light". Applied Sciences 10, n.º 7 (9 de abril de 2020): 2597. http://dx.doi.org/10.3390/app10072597.

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Increased exposition to blue light may induce many changes in cell behavior and significantly affect the critical characteristics of cells. Here we show that multimodal holographic microscopy (MHM) within advanced image analysis is capable of correctly distinguishing between changes in cell motility, cell dry mass, cell density, and cell death induced by blue light. We focused on the effect of blue light with a wavelength of 485 nm on morphological and dynamical parameters of four cell lines, malignant PC-3, A2780, G361 cell lines, and the benign PNT1A cell line. We used MHM with blue light doses 24 mJ/cm2, 208 mJ/cm2 and two kinds of expositions (500 and 1000 ms) to acquire real-time quantitative phase information about cellular parameters. It has been shown that specific doses of the blue light significantly influence cell motility, cell dry mass and cell density. These changes were often specific for the malignant status of tested cells. Blue light dose 208 mJ/cm2 × 1000 ms affected malignant cell motility but did not change the motility of benign cell line PNT1A. This light dose also significantly decreased proliferation activity in all tested cell lines but was not so deleterious for benign cell line PNT1A as for malignant cells. Light dose 208 mJ/cm2 × 1000 ms oppositely affected cell mass in A2780 and PC-3 cells and induced different types of cell death in A2780 and G361 cell lines. Cells obtained the least damage on lower doses of light with shorter time of exposition.

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Mamane, A., G. Bouvier, V. Rondeau, J. F. Tessier, C. Raherison y I. Baldi. "Exposition environnementale aux pesticides de populations vivant à proximité d’exploitations agricoles : étude Phytoriv". Revue d'Épidémiologie et de Santé Publique 61 (octubre de 2013): S245. http://dx.doi.org/10.1016/j.respe.2013.07.139.

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Musanke, Uwe, Stephanie Dietel, Nancy Neubauer y Thorsten Reinecke. "Aerosol-Expositionen beim Versprühen und Verschäumen von Reinigungsmitteln unter standardisierten Bedingungen/Aerosol exposures during spraying and foaming of cleaning agents under standardized conditions". Gefahrstoffe 82, n.º 09-10 (2022): 261–67. http://dx.doi.org/10.37544/0949-8036-2022-09-10-39.

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Um orientierende Erkenntnisse zur Höhe der inhalativen Exposition bei der Anwendung von Reinigungsmitteln im Sprüh- und Schäumverfahren zu erhalten, wurden in verschiedenen Technikumsräumen standardisierte Versuchsreihen durchgeführt. Aus den Messergebnissen für die einatembare und alveolengängige Fraktion (E- und A-Fraktion) kann abgeleitet werden, dass für nicht flüchtige Bestandteile maximal etwa 2 mg/m³ erreicht werden. Für Natriumhydroxid liegt die tätigkeitsbezogene Exposition maximal bei etwa 1 mg/m³. Eine erwartete mehrfach erhöhte Exposition beim Sprühen im Vergleich zum Schäumen konnte nicht nachgewiesen werden – letztlich wurde hier ein Faktor 2 abgeleitet. Die Art und Einstellungen der Sprüh- bzw. Schäumgeräte haben einen großen Einfluss auf die Expositionshöhe, sodass kein allgemein gültiger Ansatz für ein Verhältnis von Sprühen und Schäumen möglich ist.

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Wegscheider, Wolfgang, Renate Beisser, Anastasia Martiny, Günter Naujoks, Daniel Köster, Birgit Heinrich y J. Gerding. "Gefahrstoffexposition bei der Flächendesinfektion/Exposure to hazardous substances during surface disinfection". Gefahrstoffe 83, n.º 03-04 (2023): 69–77. http://dx.doi.org/10.37544/0949-8036-2023-03-04-23.

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Flächendesinfektionen sind im Gesundheitsdienst und inzwischen auch in vielen anderen Branchen alltägliche Routine. Die eingesetzten Desinfektionsmittel enthalten teilweise Stoffe, die in die Luft gelangen und zu einer Exposition der Beschäftigten führen können. In einer Prüfkabine wurden Flächendesinfektionsarbeiten unter realistischen Bedingungen nachgestellt und die inhalative Exposition gegenüber diesen Stoffen bestimmt. Als Desinfektionsmittel wurden handelsübliche Produkte für die Wischdesinfektion ausgewählt. Die Produkte enthielten die Wirkstoffe Ethanol, Glutaraldehyd, eine Mischung aus Glutaraldehyd und Formaldehyd sowie eine Mischung aus Peroxyessigsäure und Wasserstoffperoxid. Die Messungen haben gezeigt, wie sich die Wirkstoffe auf eine Exposition auswirken können und bis zu welchen Flächengrößen sicheres Arbeiten möglich ist. Zudem ergab sich durch die gute Reproduzierbarkeit der Daten die Möglichkeit, Berechnungsmodelle zu überprüfen.

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Ahyani, Fahmi y Iis Suwartini. "PENGGUNAAN MEDIA AUDIO VISUAL PADA PEMBELAJARAN TEKS EKSPOSISI KELAS VIII SMPN 1 SEWON". JS (JURNAL SEKOLAH) 4, n.º 4 (5 de noviembre de 2020): 63. http://dx.doi.org/10.24114/js.v4i4.20613.

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Abstract: The goal to be achieved in this study is to determine the use of audio visual media in learning exposition text in class Vlll SMPN 1 Sewon.This study uses a quantitative descriptive research method. The student populations involved 32 students in class Vlll A, 31 students in class Vlll B, 32 students in class Vlll C, and 32 students in class Vlll D. The research object uses audio visual media as the use of exposition text learning media. The teacher uses audio visual media by implementing activities of observing, asking, trying, and communicatingKeywords : Audio visual media, exposition textAbstrak: Tujuan yang ingin dicapai dalama penelitian ini dalah untuk mengetahui penggunaan media audio visual pada pembelajaran teks eksposisi kelas Vlll SMPN 1 Sewon. Penelitian ini menggunakan metode penelitian deskriptif kuanlitatif. adapun populasi siswa yang melibatkan siswa kelas VIII A dengan jumlah 32 siswa, kelas VIII B dengan jumlah 31 siswa, kelas VIII C dengan jumlah 32 siswa, dan kelas VIII D dengan jumlah 32 siswa. Objek penelitian menggunakan media audio visual sebagai penggunaan media pembelajaran teks ekposisi. Guru menggunakan media audio visual dengan menerapkan kegiatan mengamati, menanya, mencoba, dan mengomunikasikanKata kunci: Media Audi visual, teks eksposisi

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Apparicio, Philippe, Jérémy Gelb, Vincent Jarry, Élaine Lesage-Mann y Sophie Debax. "Exposition des cyclistes à la pollution sonore et atmosphérique à Lyon, France". L’Espace géographique Tome 49, n.º 3 (25 de mayo de 2021): 250–68. http://dx.doi.org/10.3917/eg.493.0250.

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Nicolle-Mir, Laurence. "Exposition à la pollution atmosphérique et neurodéveloppement jusqu’à l’âge de 3 ans". Environnement Risques Santé 18, n.º 6 (diciembre de 2019): 456–57. http://dx.doi.org/10.1684/ers.2019.1366.

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Henschel, O. "Inhalative Exposition in Laboratorien an einem Produktionsstandort der chemischen Industrie/Inhalation exposure in laboratories at a production site of the chemical industry". Gefahrstoffe 79, n.º 09 (2019): 312–16. http://dx.doi.org/10.37544/0949-8036-2019-09-18.

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Neben Produktionsanlagen gibt es in der chemischen Industrie auch zahlreiche Arbeitsplätze wie Laboratorien, an denen nur kleinere Mengen Chemikalien gehandhabt werden. Im Allgemeinen wird davon ausgegangen, dass in Laboratorien keine unzulässig hohe Exposition gegenüber Gefahrstoffen vorliegt, wenn fachkundiges und zuverlässiges Personal nach den einschlägigen Vorschriften und dem Stand der Technik unter laborüblichen Bedingungen arbeitet. In dieser Veröffentlichung wird diese Aussage anhand vorliegender Daten der Gefahrstoffmessungen in Laboratorien eines Produktionsstandorts der chemischen Industrie überprüft. Die Messwerte aus den Jahren 2010 bis 2018 zeigen, dass die untersuchten Chemikalien in den Laboratorien überwiegend nicht nachweisbar waren oder die durchschnittliche inhalative Exposition unter 0,5 mg/m³ lag. Die einzelnen nachgewiesenen Überschreitungen traten nur bei Chemikalien mit einem Beurteilungsmaßstab unterhalb 1 mg/m³ auf. Die Ergebnisse zeigen somit, dass bei sorgfältiger Handhabung von Chemikalien in Laboratorien keine unzulässige Gefährdung durch eine inhalative Exposition zu erwarten ist.

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Stabentheiner, Edith, Andrea Gross, Gerhard Soja y Dieter Grill. "Ozone biomonitoring using tobacco, Nicotiana tabacum "BelW3"". Acta Biologica Slovenica 46, n.º 2 (1 de diciembre de 2003): 21–28. http://dx.doi.org/10.14720/abs.46.2.16661.

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The ozone sensitive tobacco cultivar Be!W3 (Nicotiana tabacum L.) was used to monitor ozone pollution for one vegetation period (beginning of May till end of September) in Graz, a city of approximately 240 000 inhabitants in the south of Austria. The plants were exposed for 14 days in standardized shaded exposition racks. The insensitive tobacco cultivar BelB was used as a control. The leaf necroses characteristic for ozone damage were well correlated with ozone dose (AOT 40) with the exception of the first exposition period in May. The reliability of the evaluation of visible symptoms on tobacco leaves was confirmed by computer aided image analysis. It was possible to identify the spatial and temporal ozone distribution within a project area.

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Grimaldi, Frédérique y Alain Viala. "Exposition individuelle à la pollution de l’air en milieu urbain : l’exemple de Marseille". Bulletin de l'Académie Nationale de Médecine 191, n.º 1 (enero de 2007): 21–34. http://dx.doi.org/10.1016/s0001-4079(19)33112-7.

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Heinemeyer, Gerhard. "Probabilistische Schätzung der inhalativen Exposition vs. Punktschätzung, dargestellt am Beispiel der Freisetzung von Xylol aus Farben". Umweltwissenschaften und Schadstoff-Forschung 12, n.º 2 (marzo de 2000): 106–12. http://dx.doi.org/10.1007/bf03038177.

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Schmidt, Katja, Stephan Pflugmacher, Georg B. O. Staaks y Christian E. W. Steinberg. "Wirkung subakuter PCB-Exposition (Aroclor 1254) auf Sauerstoffverbrauch, Schwimmbewegung und Biotransformation (GST-Aktivität) des Karpfens (Cyprinus carpio)". Umweltwissenschaften und Schadstoff-Forschung 17, n.º 3 (mayo de 2005): 133–45. http://dx.doi.org/10.1065/uwsf2004.12.090.

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Dufresne, Sylvie. "Pointe-à-Callière : à la découverte du passé de Montréal". MUSÉOLOGIE/MUSEOLOGY 13, n.º 1 (20 de septiembre de 2021): 75–77. http://dx.doi.org/10.7202/1081394ar.

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Pointe-à-Callière est une jeune institution muséale qui a ouvert ses portes au public le 17 mai 1992. Construit sur le lieu de fondation de Montréal, le musée présente une exposition permanente de plus 4 000 m. Cette exposition met en valeur des vestiges architecturaux, des artefacts archéologiques et un bâtiment patrimonial érigé au 19e siècle. Pointe-à-Callière a pour mission de faire connaître et aimer l'histoire de Montréal. En visitant le musée, le public circule parmi des vestiges anciens et authentiques qui témoignent de la succession séculaire des populations amérindienne, française, britannique, nord-américaine et québécoise sur ce site. La visite du musée, faite seule, en famille ou en compagnie d'un(e) guide animateur, est l'occasion de découvrir Montréal par son patrimoine archéologique. Elle est aussi l'occasion de réfléchir sur notre propre rôle dans le processus de conservation des traces du passé; elle nous permet également de prendre conscience que nous laissons à notre tour des traces qui constitueront, pour les générations à venir, le patrimoine de demain.

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Cuny, Damien, Anastasia Chauvière y Mélie Rousseau. "Exposition prénatale à la pollution atmosphérique et impacts sur les issues de la grossesse". Vocation Sage-femme 18, n.º 138 (mayo de 2019): 40–43. http://dx.doi.org/10.1016/j.vsf.2019.03.009.

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Housset, B. "Comment évaluer une exposition à la pollution en pratique quotidienne et conseiller les patients ?" Revue Française d'Allergologie 60, n.º 4 (junio de 2020): 199–200. http://dx.doi.org/10.1016/j.reval.2020.02.025.

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Heckmann, Petra, Renate Beisser, Anita Csomor, Christoph Emmel, Ralph Hebisch, Gebhard von Kries y Ralf Sonnenburg. "Die neue TRGS 402 – Änderungen und Anwendungshinweise/The new TRGS 402 – updates and recommendations for its application". Gefahrstoffe 83, n.º 11-12 (2023): 247–54. http://dx.doi.org/10.37544/0949-8036-2023-11-12-7.

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Die überarbeitete und vom Ausschuss für Gefahrstoffe (AGS) verabschiedete Technische Regel für Gefahrstoffe (TRGS) 402 „Ermitteln und Beurteilen der Gefährdungen bei Tätigkeiten mit Gefahrstoffen: Inhalative Exposition“ wurde im September 2023 veröffentlicht. Sie weist eine Reihe von Änderungen gegenüber der bisherigen Fassung auf. Besonders hervorzuheben ist die Vereinheitlichung der Befunderhebung, die nun auch krebserzeugende Stoffe mit einem der Exposition-Risiko-Beziehung (ERB) entsprechenden Beurteilungsmaßstab (BM) und andere Stoffe mit einem BM aus stoffspezifischen TRGS berücksichtigt. Die Einteilung der zu bestimmenden Stoffgruppen sowie die Auswahl und Anwendung messtechnischer und nichtmesstechnischer Verfahren wurden aktualisiert. Des Weiteren wurde die vom AGS veröffentlichte Liste empfohlener Messverfahren implementiert. In dieser Veröffentlichung werden einige erläuternde Hinweise zur praktischen Anwendung der TRGS 402 gegeben.

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Rutkowski, Radosław, Justyna Rybak, Tomasz Mach y Wioletta Rogula–Kozłowska. "Spider webs in monitoring of air pollution". SHS Web of Conferences 57 (2018): 02011. http://dx.doi.org/10.1051/shsconf/20185702011.

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Biomonitoring is a significant tool of environmental protection strategies. Variety of bioindicators are used worldwide, particularly mosses, lichens and tree leaves. However, they revile many considerable disadvantages, e.g. limitation to vegetative season, moisture demand, exposition to severe weather conditions, limited time of monitoring. Classical impactors, on the other hand, are expensive, cannot be used without supervision and allow only for short-term monitoring. Spider webs, however, reveal features of extraordinary bioindicators. Webs are abundant, easy to collect, costless and can be found all year round, despite vegetative season. Spider silk is a very efficient, non-selective accumulator of contaminants, that allows for long-term monitoring. Thanks to this characteristics, spider webs proved to be immensely useful bioindicators of air pollution. They allow for monitoring of heavy metals, Polycyclic Aromatic Hydrocarbons (PAHs), dioxins, so as assessment of mutagenic activity and anthropopression assessment and indication of dominant source of pollutants. Most of the researches concerning application of spider webs as bioindicators have been conducted in Wrocław, Poland. This paper reviews current knowledge on spider webs in monitoring of air pollution.

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Gałązka, Jakub. "The potential usage of thyroid hormones as sport doping - a mini-review". Quality in Sport 8, n.º 3 (19 de diciembre de 2022): 61–65. http://dx.doi.org/10.12775/qs.2022.08.03.007.

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A thyroid gland is one of the most important organs of a human body. Thyroid hormones, at least in physiological concentration, have anabolic features. The aid of this review is to summarize knowledge on potential usage of thyroid hormones in sport doping. Thyroid hormones play a crucial role in skeletal muscles physiology. The exposition to T3 and T4 may improve myogenesis, muscles regeneration and muscles blood blow. In a long-time perspective, those hormones may help in reducing body weight. According to those mechanisms, thyroid hormones may be considered as a plausible agent in sport doping. However WADA guidelines does not include T3 or T4 in a list o sport doping substances, the debate on their inclusion is on-going, and the physicians should be aware of thyroid hormones effects on human metabolism from sports medicine perspective.

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Bergek, Sara, Qi Ma, Markus Vetemaa, Fredrik Franzén y Magnus Appelberg. "From individuals to populations: Impacts of environmental pollution on natural eelpout populations". Ecotoxicology and Environmental Safety 79 (mayo de 2012): 1–12. http://dx.doi.org/10.1016/j.ecoenv.2012.01.019.

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GAGLIARDI, J., C. CASTRO, L. SORIANO, O. VILA, D. LERDA, M. ROMERO, J. MUINO y H. MISERICORDIA. "77 Comparative study to low persistent vs high short exposition to TDI in two different populations". Journal of Allergy and Clinical Immunology 97, n.º 1 (enero de 1996): 202. http://dx.doi.org/10.1016/s0091-6749(96)80295-8.

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PLESA, Ioana, Cătălina DAN, Alina TRUȚA, Liviu HOLONEC, Adriana F. SESTRAS, Monica BOSCAIU y Radu E. SESTRAS. "Spruce Trees Growth and Forest Landscape Depending on Microstational Factors and Ecological Conditions". Notulae Scientia Biologicae 9, n.º 4 (20 de diciembre de 2017): 582–88. http://dx.doi.org/10.15835/nsb9410217.

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Spruce (Picea abies (L.) Karst) is an important forest tree species in Romania, occupying approximately 24% of the total forest area. Due to its variable temperament, the spruce is generally considered a semi-shadow species. Through the research carried out in Valea Ierii (N-W of Romania), the response of spruce was evaluated according to different microstational conditions (e.g. exposure, altitude, density etc.), in nine sample plots, each of them with a surface of 500 m2, on a total area of 10 hectares. There were noted interaction responses to several ecological factors. Results showed that the trees with South-West exposure and at an altitude of 1,200-1,370 m have accumulated the largest amount of biomass, showing significant differences from the trees exposed on North-East plots and at altitudes comprised between 1,170-1,380 m. Behavioural differences regarding growth and biomass accumulation capacity was statistically ascribed to slope exposition, which was therefore considered as principal factor regulating landscape function of the forest, with a strong ecological impact. In the whole set of populations, the response function varied considerably within the S-W expositional plots compared to the N-E plots exposition, but without significant differences related to trees density and altitudinal level. Because all stands under study were pure, composed of even-aged spruce trees, differences may be related to a range of habitats as geosystem and/or geofacies levels, respectively altitudinal forest, exposition, density and other local conditions. The superior growth of the trees on the S-W exposition slope was explained due to the young stage of the spruce, and the trees preference until this age for sunny and more dried conditions. Probably, in the next years, the trees’ evolution will confirm that the spruce prefer low temperatures, low insolation inside the forest, high and permanent humidity. Further spatio-temporal analysis will be useful for reliable hypothesis to be inferred as functions of the forest, but also landscaping, depending of the trees’ age and ecological conditions.

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Acevedo, P., J. Vicente, V. Alzaga y C. Gortazar. "Relationship between bronchopulmonary nematode larvae and relative abundances of Spanish ibex (Capra pyrenaica hispanica) from Castilla-La Mancha, Spain". Journal of Helminthology 79, n.º 2 (junio de 2005): 113–18. http://dx.doi.org/10.1079/joh2005285.

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AbstractThe excretion of bronchopulmonary nematode infective larvae was evaluated in 160 faecal samples of Spanish ibex (Capra pyrenaica hispanica) collected from 13 populations in Castilla-La Mancha, south-central Spain in September 2003. Intensities and prevalences were compared with pasture availability, abundances of wild and domestic ungulates at both levels, i.e. for populations and for faeces in a two-step procedure. Protostrongylid larvae showed similar infection rates (mean intensity: 1.56±0.12, n=94; mean prevalence: 25.62±6.86%, n=160) to Dictyocaulus spp. (mean intensity: 1.03±0.11, n=48; mean prevalence: 30.00±7.11%, n=160). At the population level, positive correlations were found between the prevalences of both bronchopulmonary taxa. The prevalence in both groups, but not intensity, also correlated positively with Spanish ibex abundance indexes both for the populations and individual faeces. These findings suggest that: (i) parasite spreading across Spanish ibex populations in Castilla-La Mancha could respond to host density-dependent processes; and (ii) these populations may have similar exposition and/or susceptibility to both bronchopulmonary taxa resulting in similar host–parasite patterns, despite their different life cycles. Bronchopulmonary outputs in the Spanish ibex from Castilla-La Mancha seems not to represent a health risk for this endemic wild ungulate but may be useful in any health surveillance scheme for the increasing populations of Spanish ibex.

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Gadelha, J., C. Ferreira, A. M. V. M. Soares, M. L. Pereira y F. Morgado. "Histopathology of Zinc exposition in Actinia equina L. (Anthozoa, Actiniaria)". Microscopy and Microanalysis 19, S4 (agosto de 2013): 69–70. http://dx.doi.org/10.1017/s1431927613000962.

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Zinc is a trace metal that is regularly found at pollution sites, amongst other metals and pollutants, contributing to the toxicity of marine ecosystems. In this study zinc acute toxicity tests were conducted on the sea anemone Actinia equina. This sea anemone presents a wide geographic distribution on rocky shore marine habitats, is quite resistant to some degree of various forms of contaminants and plays an important ecological key role in the marine environments.After a period of acclimatising on a flow through system, organisms of the same average size were exposed to different concentrations of zinc solution during a period of 96 hours (0 µg/l, 10 µg/l, 50 µg/l, 100 µg/l, and 200µg/l). The histological processing of the specimens was performed using standard procedures, slightly modified due to the peculiar nature of the biological material.The general effects exhibited necrosis of tentacles, mesenterial filaments, and in the gastrodermal regions (Figures 1, 2 and 3). It were observed tentacular cysts, black particulate accumulations in the gastrodermis, hypertrophied cells in the lobes of the mesenteries filaments, and spirocyst and associated necrosis (Fig. 2-3). All anemones exhibited extensive areas of tissue necrosis, degeneration of the epidermis in various stages, with loss of mucous cells, vacuolation, necrosis and ptychocysts from the epidermis, necrosis of retractor muscles and ducts (Figures 2-3). Neoplasms of the gastrointestinal tract and gonads were observed in internal structures. In the former, modifications of the mesenteries such as intensive fragmentation, vacuolization and epithelial thinning and in the latter abnormal gonad development and necrosis were noted (Figures 2-3).The data suggests that Actinia equina may be adversely affected by acute exposures to high levels of zinc as seen during laboratory exposures of other invertebrates and is also probably sensitive to acute exposures to metal’s toxic sediments in the marine environment. The loss of mucous secretory cells and ptychocysts from the epidermis suggest that energy reserves for cell replenishment were adversely affected. Mucus production in benthic cnidarians is necessary to prevent burial by sedimentation and to protect against toxins or invading microorganisms. The serious effects on the gastrodermis integrity indicate that sea water in the coelenteron is no longer circulated. The observed modifications could be considered as a general cnidarians response to stress.Further investigations of bioaccumulation, physiology, and histopathology in this anemone and other anthozoans from polluted environments should prove to be valuable in pollution monitoring studies, as they have for other benthic invertebratesAcknowledgmentsThis work was supported by the Portuguese Foundation for the Science and Technology – Portugal and FEDER funds, through the Projects: PTDC/MAR/464729/2006 and FCT/CNPq (Brazil), Project 6818, Programme 19/ 004.

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Bouazza, Naïm, Frantz Foissac, Saik Urien, Romain Guedj, Ricardo Carbajal, Jean-Marc Tréluyer y Hélène Chappuy. "Fine particulate pollution and asthma exacerbations". Archives of Disease in Childhood 103, n.º 9 (19 de diciembre de 2017): 828–31. http://dx.doi.org/10.1136/archdischild-2017-312826.

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ObjectiveAs the results from epidemiological studies about the impact of outdoor air pollution on asthma in children are heterogeneous, our objective was to investigate the association between asthma exacerbation in children and exposure to air pollutants.MethodsA database of 1 264 585 paediatric visits during the 2010–2015 period to the emergency rooms from 20 emergency departments (EDs) of ‘Assistance Publique Hôpitaux de Paris (APHP)’, the largest hospital group in Europe, was used. A total of 47 107 visits were classified as asthma exacerbations. Concentration of air pollutants (nitrogen dioxide, ozone, fine particulate matter (PM) with an aerodynamic diameter smaller than 10 µm (PM10) and 2.5 µm (PM2.5)), as well as meteorological data, evolution of respiratory syncytial virus infection and pollen exposition, were collected on an hourly or daily basis for the same period using institutional databases. To assess the association between air pollution and asthma, mixed-effects quasi-Poisson regression modelling was performed.ResultsThe only compound independently associated with ED visits for asthma was PM2.5 (P<10−4). The association between asthma exacerbation and PM2.5 was not linear, and a sigmoid function described the relationshipsatisfactorily. PM2.5 concentration, which gives half the maximum effect, was estimated at 13.5 µg/m3.ConclusionsWe found an association between daily asthma exacerbation in paediatric visits to the ED and fine particulate air pollutants.

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VESTER, B. P., M. EBERT y S. WEINBRUCH. "EXPOSITION TO URBAN AEROSOLS: INFLUENCE OF THE HETEROGENEOUS COMPOSITION OF INDIVIDUAL PARTICLES". Journal of Aerosol Science 35 (julio de 2004): S1141—S1142. http://dx.doi.org/10.1016/s0021-8502(19)30303-9.

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Whitehead, Andrew, Whitney Pilcher, Denise Champlin y Diane Nacci. "Common mechanism underlies repeated evolution of extreme pollution tolerance". Proceedings of the Royal Society B: Biological Sciences 279, n.º 1728 (6 de julio de 2011): 427–33. http://dx.doi.org/10.1098/rspb.2011.0847.

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Human alterations to the environment can exert strong evolutionary pressures, yet contemporary adaptation to human-mediated stressors is rarely documented in wildlife populations. A common-garden experimental design was coupled with comparative transcriptomics to discover evolved mechanisms enabling three populations of killifish resident in urban estuaries to survive normally lethal pollution exposure during development, and to test whether mechanisms are unique or common across populations. We show that killifish populations from these polluted sites have independently converged on a common adaptive mechanism, despite variation in contaminant profiles among sites. These populations are united by a similarly profound desensitization of aryl-hydrocarbon receptor-mediated transcriptional activation, which is associated with extreme tolerance to the lethal effects of toxic dioxin-like pollutants. The rapid, repeated, heritable and convergent nature of evolved tolerance suggests that ancestral killifish populations harboured genotypes that enabled adaptation to twentieth-century industrial pollutants.

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Klein, Anne y Yvon Lemay. "Les archives photographiques en mouvement1". Documentation et bibliothèques 60, n.º 4 (11 de septiembre de 2014): 189–97. http://dx.doi.org/10.7202/1026487ar.

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À partir de la relation entre un ouvrage de Carol Payne portant sur le service de photographie de l’Office national du film du Canada (ONF) et une exposition sur les pensionnats autochtones, organisée par le Musée McCord en collaboration avec la Commission de vérité et réconciliation du Canada, l’objectif de cet article est de montrer comment des photographies d’archives produites dans une perspective d’assimilation des populations autochtones peuvent aujourd’hui servir, dans un autre contexte, d’outils d’émancipation au sein de ces mêmes communautés. Il fait ainsi valoir que les archives photographiques constituent des lieux ouverts, en attente d’une rencontre, d’un moment historique pouvant les actualiser.

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Hebisch, R. "Ermittlung und Beurteilung inhalativer Exposition jetzt mit neuer TRGS 402". Gefahrstoffe 83, n.º 11-12 (2023): 243. http://dx.doi.org/10.37544/0949-8036-2023-11-12-3.

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