REFERENCE_ID int64 273 7.3M | TITLE stringlengths 4 390 | AUTHORS stringlengths 5 1.43k ⌀ | YEAR int64 1.85k 2.02k ⌀ | ABSTRACT stringlengths 1 18.4k ⌀ | CITED int64 0 1 |
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651,877 | Translocation of nuclear Factor-kappa B on corneal epithelial cells induced by ultraviolet B irradiation | Lee, DH; Kim, JK; Joo, CK | 2,005 | Purpose: This study was performed to elucidate the role of nuclear factor-kappa B (NF-kappa B) in the death of corneal epithelial cells after ultraviolet (UV) irradiation. Methods: Simian virus 40-transfected human corneal epithelial cells (T-HCECs) were used in this study. Cell cultures were irradiated with a UVB (312... | 0 |
191,210 | Above-ground space sequestration determines competitive success in juvenile beech and spruce trees | Kozovits, AR; Matyssek, R; Winkler, JB; Gottlein, A; Blaschke, H; Grams, TEE | 2,005 | A 2-yr phytotron study was conducted to investigate the intra- and inter-specific competitive behaviour of juvenile beech (Fagus sylvatica) and spruce (Picea abies). Competitiveness was analysed by quantifying the resource budgets that occur along structures and within occupied space of relevance for competitive intera... | 0 |
76,095 | Ozone uptake by an evergreen Mediterranean Forest (Quercus ilex) in Italy Part I: Micrometeorological flux measurements and flux partitioning | Gerosa, G; Vitale, M; Finco, A; Manes, F; Denti, AB; Cieslik, S | 2,005 | Ozone, water and energy fluxes have been measured over a Mediterranean evergreen forest in Central Italy from August to October 2003 with the eddy-correlation technique in order to evaluate the amount of ozone taken up by plants in dry summer and in mild autumn conditions. The stomatal ozone fluxes have been calculated... | 0 |
191,517 | A mitogen-activated protein kinase NtMPK4 activated by SIPKK is required for jasmonic acid signaling and involved in ozone tolerance via stomatal movement in tobacco | Gomi, K; Ogawa, D; Katou, S; Kamada, H; Nakajima, N; Saji, H; Soyano, T; Sasabe, M; Machida, Y; Mitsuhara, I; Ohashi, Y; Seo, S | 2,005 | The mitogen-activated protein kinase (MAPK) cascade is involved in responses to biotic and abiotic stress in plants. In this study, we isolated a new MAPK, NtMPK4, which is a tobacco homolog of Arabidopsis MPK4 (AtMPK4). NtMPK4 was activated by wounding along with two other wound-responsive tobacco MAPKs, WIPK and SIPK... | 0 |
199,249 | Impacts of O3 and CO2 enrichment on growth of komatsuna (Brassica campestris) and Radish (Raphanus sativus) | Yonekura, T; Kihira, A; Shimada, T; Miwa, M; Aruzate, A; Izuta, T; Ogawa, K | 2,005 | In the present study, we investigated the effects of O-3 and CO2 on the growth of crop plants komatsuna (Brassica campestris. cv. Rakuten) and radish (Raphanus sativus. cv. Akamaru), and to suggest prediction maps of growth-loss affected by O-3 under CO2 enrichment in the Kanto district of Japan. Komatsuna and radish p... | 0 |
199,282 | The flux of isoprene from a willow coppice plantation and the effect on local air quality | Olofsson, M; Ek-Olausson, B; Jensen, NO; Langer, S; Ljungstrom, E | 2,005 | Isoprene fluxes from a Salix viminalis (willow) plantation in western Sweden were measured using the relaxed eddy accumulation (REA) technique. Fluxes of up to 0.23 mu g m(-2) s(-1) could be observed. A standard emission factor at 303 K and a PAR flux of 1000 mu mol m(-2) s(-1) was estimated to 0.98 mu g m(-2) s(-1) by... | 0 |
121,386 | Source contribution to aromatic VOC concentration and ozone formation potential in the atmosphere of Seoul | Na, K; Moon, KC; Yong, PK | 2,005 | This study reports the seasonal trend of C-6-C-9 aromatic volatile organic compounds (VOCs) and estimates the contribution of vehicle exhaust and evaporative emissions to the total aromatic VOC concentration and ozone formation potential in the atmosphere of Seoul, Korea. Measurements of aromatic VOCs were made at a si... | 0 |
689,751 | Ozone and/or Water Stresses Could have Influenced the Betula ermanii Cham. Forest Decline Observed at Oku-Nikko, Japan | Shimizu, H; Feng, YW | 2,005 | null | 0 |
191,711 | Using plant biomonitors and flux modelling to develop O-3 dose-response relationships in Catalonia | Filella, I; Penuelas, J; Ribas, A | 2,005 | We used tobacco Bel-W3 biomonitoring data and ozone flux modelling (WINDEP model) with the aim of developing the absorbed dose-response relationship, and comparing this approach with the most commonly used AOT40 (the sum of hourly ozone concentrations above a cut-off of 40 ppb during daylight hours, when global radiati... | 0 |
79,170 | 2003 National Hospital Discharge Survey | DeFrances, CJ; Hall, MJ; Podgornik, MN | 2,005 | null | 0 |
596,399 | Effects of ozone on isolated peripheral blood mononuclear cells | Larini, A; Bocci, V | 2,005 | We have investigated the release of cytokines from isolated peripheral human blood mononuclear cells (PBMC) exposed to various ozone concentrations for 10 min and the release of both proinflammatory and immunosuppressive cytokine after 24, 48 and 76 h incubation. Ozonation was performed by exposing for 10 min equal cel... | 0 |
195,256 | Errata to Ozone concentration effects on the dark fade of ink jet photographic prints (vol 43, pg 317, 2005) | Bugner, D; Van Hanehem, R; Oakland, M; Artz, P; Zaccour, D; Levesque, R | 2,005 | We regret that Figs. 15 -17 of this article was published incorrectly. | 0 |
90,282 | The effects of wildfire, salvage logging, and post-fire N fixation on the nutrient budgets of a Sierran forest | Johnson, DW; Murphy, JD; Susfalk, RB; Caldwell, TG; Miller, WW; Walker, RF; Powers, RF | 2,005 | The effects of fire, post-fire salvage logging, and revegetation on nutrient budgets were estimated for a site in the eastern Sierra Nevada Mountains that burned in a wildfire in 1981. Approximately two decades after the fire, the shrub (former fire) ecosystem contained less C and more N than the adjacent forest ecosys... | 0 |
125,901 | Meteorologically adjusted trends of daily maximum ozone concentrations in Taipei, Taiwan | Lu, HC; Chang, TS | 2,005 | The meteorological conditions exert large impacts on ozone concentrations, and may mask the long-term trends in ozone concentrations resulting from precursor emissions. Estimation of long-term trends of ozone concentrations due to the changes in precursor emissions is important for corresponding control strategy. Multi... | 0 |
191,525 | Monitoring tropospheric ozone in California mountains | Bytnerowicz, A | 2,005 | In California mountains distribution Of O-3 has been monitored by the USDA Forest Service scientists and managers with carefully designed networks of passive samplers and portable, battery-operated active monitors. Ozone concentrations, digital elevation model and selected meteorological parameters have been used for d... | 0 |
79,161 | Regional climate model downscaling of US summer climate and future change | Liang, XZ; Pan, JP; Zhu, JH; Kunkel, KE; Wang, JXL; Dai, A | 2,005 | null | 0 |
596,407 | Effect of 0.25 ppm ozone exposure on pulmonary damage induced by bleomycin | Oyarzun, M; Dussaubat, N; Gonzalez, S | 2,005 | To study the effect of ozone in a chronically damaged lung, we used a bleomycin (BLM) induced pulmonary fibrosis model. Both endotracheal instillation of BLM and O3 exposure both produce lung inflammation and fibrosis. Oxidative stress would be a common mechanism of damage for both BLM and O3. Our aim was to assess lun... | 1 |
196,957 | Emission of non-methane volatile organic compounds (VOCs) from boreal peatland microcosms - effects of ozone exposure | Rinnan, R; Rinnan, A; Holopainen, T; Holopainen, JK; Pasanen, P | 2,005 | Non-methane volatile organic compounds (VOCs) emitted from boreal peatland microcosms were semi quantitatively determined using gas chromatography-mass spectrometry techniques in a growth chamber experiment. Furthermore, effects of vegetation composition and different ozone concentrations on these emissions were estima... | 0 |
74,104 | UV-exposition and vitamin-D: how much sunlight do we need? | Reichrath, J; Girndt, M; Tilgen, W; Querings, K | 2,005 | null | 0 |
75,482 | Regression analysis of longitudinal binary data with time-dependent environmental covariates: bias and efficiency | Schildcrout, JS; Heagerty, PJ | 2,005 | Generalized estimating equations (Liang and Zeger, 1986) is a widely-used, moment-based procedure to estimate marginal regression parameters. However, a subtle and often overlooked point is that valid inference requires the mean for the response at time t to be expressed properly as a function of the complete past, pre... | 0 |
102,346 | Diurnal and seasonal cycles of ozone precursors observed from continuous measurement at an urban site in Taiwan | Yang, KL; Ting, CC; Wang, JL; Wingenter, OW; Chan, CC | 2,005 | Hourly measurement of 56 ozone precursors was conducted by a monitoring station located in a metropolitan area in central Taiwan. After nearly a year of continuous operation at this urban site, both diurnal and seasonal cycles of nonmethane hydrocarbons (NMHCs) were clearly observed, which was caused by the interplay b... | 0 |
199,201 | Spermine and putrescine enhance oxidative stress tolerance in maize leaves | Durmus, N; Kadioglu, A | 2,005 | The protective effects of spermine (SPM) and putrescinc (PUT) against paraquat (PQ), a herbicide in agriculture and oxidative stress inducer, were investigated in the leaves of maize. Maize leaves were pretreated to SPM and PUT at concentrations of 0.2 and I mM and treated with PQ afterwards. Pretreatment with I mM of ... | 0 |
87,393 | El proyecto EMECAS: protocolo del estudio multicentrico en espana de los efectos a corto plazo de la contaminacion atmosferica sobre la salud [The EMECAS project: Spanish multicentre study on short-term health effects of air pollution] | Ballester, F; Saez, M; Daponte, A; Ordonez, JM; Taracido, M; Cambra, K; Arribas, F; Bellido, JB; Guillen, JJ; Aguinaga, I; Canada, A; Lopez, E; Iniguez, C; Rodriguez, P; Perez-Hoyos, S; Barcelo, MA; Ocana, R; Aranguez, E; EMECAS | 2,005 | The EMECAM Project demonstrated the short-term effect of air pollution on the death rate in 14 cities in Spain throughout the 1990-1995 period. The Spanish Multicentre Study on Health Effects of Air Pollution (EMECAS) is broadening these objectives by incorporating more recent data, information on hospital disease adm... | 0 |
87,837 | Oxidation of S(IV) in sea-salt aerosol at high pH: ozone versus aerobic reaction | Hoppel, WA; Caffrey, PF | 2,005 | The oxidation of dissolved SO2 (as S(IV)) by dissolved O3 is known to increase rapidly with pH and is generally thought to be the mechanism responsible for the oxidation of S(IV) in sea-salt aerosol at high pH. Recently, Hoppel et al. (2001) have shown that an aerobic reaction studied by Zhang and Millero (1991) increa... | 0 |
191,538 | A note on the effect of elevated concentrations of greenhouse gases on spring wheat yield in Ireland | Donnelly, A; Finnan, J; Jones, MB; Burke, JI | 2,005 | Spring wheat (Triticum aestivum L., cv. Minaret) was grown to maturity in open-top chambers under two concentrations of CO2 (ambient and 680 mu mol/mol) and two concentrations of O-3 (ambient and ambient +90 nmol/mol). Elevated concentrations of CO2 increased grain yield whereas yield was reduced by elevated O-3. The d... | 0 |
196,900 | Effects of ozone and/or water stress on the growth of Abies veitchii seedlings | Feng, YW; Shimizu, H | 2,005 | We investigated the effects of ozone (03) and soil water stress, singly and in combination on the growth of 6-year-old seedlings of Abies veitchii to explore the relationship among ambient O-3 level, water stress and Abies veitchii forest decline in the Oku-Nikko region in central Japan. The seedlings were exposed to c... | 0 |
191,479 | Interaction between nitric oxide and ethylene in the induction of alternative oxidase in ozone-treated tobacco plants | Ederli, L; Morettini, R; Borgogni, A; Wasternack, C; Miersch, O; Reale, L; Ferranti, F; Tosti, N; Pasqualini, S | 2,006 | The higher plant mitochondrial electron transport chain contains, in addition to the cytochrome chain, an alternative pathway that terminates with a single homodimeric protein, the alternative oxidase (AOX). We recorded temporary inhibition of cytochrome capacity respiration and activation of AOX pathway capacity in to... | 1 |
133,817 | Comparison of ozone simulations using MM5 and CALMET/MM5 hybrid meteorological fields for the July/August 2000 CCOS episode | Jackson, B; Chau, D; Gurer, K; Kaduwela, A | 2,006 | Two sets of meteorological fields were prepared for the July/August 2000 Central California Ozone Study (CCOS) episode. The first set was generated using the MM5 prognostic model. The second set was generated using the CALMET model in which... | 0 |
89,383 | Evaluation of space-based constraints on nitrogen oxide emissions with regional aircraft measurements over and downwind of eastern North America | Martin, RV; Sioris, CE; Chance, K; Ryerson, TB; Bertram, TH; Wooldridge, PJ; Cohen, RC; Neuman, JA; Swanson, A; Flocke, FM | 2,006 | [ 1] We retrieve tropospheric nitrogen dioxide (NO2) columns for May 2004 to April 2005 from the SCIAMACHY satellite instrument to derive top-down emissions of nitrogen oxides (NOx = NO + NO2) via inverse modeling with a global chemical transport model (GEOS-Chem). Simulated NO2 vertical profiles used in the retrieval ... | 0 |
89,222 | Multimodel ensemble simulations of present-day and near-future tropospheric ozone | Stevenson, DS; Dentener, FJ; Schultz, MG; Ellingsen, K; Van Noije, TPC; Wild, O; Zeng, G; Amann, M; Atherton, CS; Bell, N; Bergmann, DJ; Bey, I; Butler, T; Cofala, J; Collins, WJ; Derwent, RG; Doherty, RM; Drevet, J; Eskes, HJ; Fiore, AM; Gauss, M; Hauglustaine, DA; Horowitz, LW; Isaksen, ISA; Krol, MC; Lamarque, JF; L... | 2,006 | Global tropospheric ozone distributions, budgets, and radiative forcings from an ensemble of 26 state-of-the-art atmospheric chemistry models have been intercompared and synthesized as part of a wider study into both the air quality and climate roles of ozone. Results from three 2030 emissions scenarios, broadly repres... | 1 |
191,733 | Overstory community composition and elevated atmospheric CO2 and O3 modify understory biomass production and nitrogen acquisition | Bandeff, JM; Pregitzer, KS; Loya, WM; Holmes, WE; Zak, DR | 2,006 | Elevated atmospheric CO2 and O-3 have the potential to affect the primary productivity of the forest overstory, but little attention has been given to potential responses of understory vegetation. Our objective was to document the effects of elevated atmospheric CO2 and O-3 on understory species composition and biomass... | 1 |
631,183 | An assessment of climate feedbacks in coupled ocean-atmosphere models | Soden, BJ; Held, IM | 2,006 | The climate feedbacks in coupled ocean?atmosphere models are compared using a coordinated set of twenty-first-century climate change experiments. Water vapor is found to provide the largest positive feedback in all models and its strength is consistent with that expected from constant relative humidity changes in the w... | 1 |
98,216 | Does particulate matter modify the association between temperature and cardiorespiratory diseases? | Ren, C; Williams, GM; Tong, S | 2,006 | #BACKGROUND: A number of studies have shown that both temperature and air pollution are associated with health outcomes. In assessing air pollution effects, temperature is usually considered a confounder. However, only a few recent studies considered air pollution as confounders while assessing temperature effects. Few... | 0 |
90,047 | Environmental chemistry: Browning the waters | Roulet, N; Moore, TR | 2,006 | Levels of dissolved organic carbon in British streams and lakes have risen over the past two decades. It might be a downstream effect of decreased acid rain--but isolating single factors is notoriously difficult. | 0 |
191,219 | Analysing the impact of ozone on biochemical and physiological variables in plant species belonging to natural ecosystems | Scebba, F; Giuntini, D; Castagna, A; Soldatini, G; Ranieri, A | 2,006 | Physiological and biochemical responses to acute ozone exposure for 29 plants belonging to natural and semi-natural european ecosystems were characterised and used to reveal common features among species. Plants were grown in controlled conditions and exposed to acute ozone fumigation at 150 ppb for 3 h. Parameters of ... | 1 |
191,473 | Influences of elevated ozone and carbon dioxide in growth responses of lowland hay meadow mesocosms | Ramo, K; Kanerva, T; Nikula, S; Ojanpera, K; Manninen, S | 2,006 | We studied the effects of relatively low levels of O-3 (40-50 ppb) and CO2-enrichment (+ 100 ppm) on a northern European lowland hay meadow during the summers 2002-2004 using open-top chambers (OTCs) and ground-planted mesocosms. Ozone reduced the aboveground biomass of the community (up to 40%), and four out of seven ... | 0 |
191,618 | Predicting leaf-level fluxes of O-3 and NO2: The relative roles of diffusion and biochemical processes | Eller, ASD; Sparks, JP | 2,006 | Pollutants like O-3 and NO2 enter leaves through the stomata and cause damage during reactions with components of biological cell membranes. The steady-state flux rates of these gases into the leaf are determined by a series of physical and biochemical resistances including stomatal aperture, reactions occurring within... | 0 |
679,714 | Long-term growth of soybean at elevated CO2 does not cause acclimation of stomatal conductance under fully open-air conditions | Leakey, ADB; Bernacchi, CJ; Ort, DR; Long, SP | 2,006 | Accurately predicting plant function and global biogeochemical cycles later in this century will be complicated if stomatal conductance (g(s)) acclimates to growth at elevated [CO2], in the sense of a long-term alteration of the response of g(s) to [CO2], humidity (h) and/or photosynthetic rate (A). If so, photosynthet... | 1 |
672,958 | Why do we still use stepwise modelling in ecology and behaviour? | Whittingham, MJ; Stephens, PA; Bradbury, RB; Freckleton, RP | 2,006 | 1. The biases and shortcomings of stepwise multiple regression are well established within the statistical literature. However, an examination of papers published in 2004 by three leading ecological and behavioural journals suggested that the use of this technique remains widespread: of 65 papers in which a multiple re... | 0 |
91,236 | Exposures to airborne particulate matter and adverse perinatal outcomes: A biologically plausible mechanistic framework for exploring potential effect modification by nutrition | Kannan, S; Misra, DP; Dvonch, JT; Krishnakumar, A | 2,006 | OBJECTIVES: The specific objectives are threefold: to describe the biologically plausible mechanistic pathways by which exposure to particulate matter (PM) may lead to the adverse perinatal outcomes of low birth weight (LBW), intrauterine growth retardation (IUGR), and preterm delivery (PTD); review the evidence showin... | 1 |
191,354 | Effects of elevated pO(3) on carbon cycle between above and belowground organs of trees | Liu, XP; Heinz, R; Rainer, M | 2,006 | Translocation of carbohydrate from leaves to roots via phloem and reallocation from roots to leaves via xylem regulate the allocation of carbon (C) between above and belowground organs of trees. To quantitatively analyze effects of elevated ozone concentrations pO(3) on the internal cycle of C, juvenile beech and spruc... | 0 |
90,745 | Personal and ambient air pollution is associated with increased exhaled nitric oxide in children with asthma | Delfino, RJ; Staimer, N; Gillen, D; Tjoa, T; Sioutas, C; Fung, K; George, SC; Kleinman, MT | 2,006 | Background: Research has shown associations between pediatric asthma outcomes and airborne particulate matter (PM). The importance of particle components remains to be determined.
Methods: We followed a panel of 45 schoolchildren with persistent asthma living in Southern California. Subjects were monitored over 10 day... | 0 |
191,542 | Nutritive quality of big bluestem (Andropogon gerardii) and eastern gamagrass (Tripsacum dactyloides) exposed to tropospheric ozone | Lewis, JS; Ditchkoff, SS; Lin, JC; Muntifering, RB; Chappelka, AH | 2,006 | Tropospheric ozone (O-3) is a phytotoxic air pollutant widespread in industrialized nations of the world. Ozone is produced by the photo-oxidation of hydrocarbons released into the atmosphere by combustion of fossil fuels. Studies demonstrate O-3 can be transported from metropolitan areas to rural areas important to ag... | 1 |
699,250 | The missing piece: Valuing averting behavior for children's ozone exposures | Mansfield, CA; Johnson, FR; Van Houtven, GL | 2,006 | Individuals can reduce their exposure to air pollution by reducing the amount of time they spend outdoors. Reducing outdoor time is an example of an averting behavior that should be measured as part of willingness to pay (WTP) for improvements in air quality. In this paper, we estimate parents? WTP to prevent restricti... | 1 |
597,714 | Susceptibility to ozone-induced airway inflammation is associated with decreased levels of surfactant protein D | Kierstein, S; Poulain, FR; Cao, Y; Grous, M; Mathias, R; Kierstein, G; Beers, MF; Salmon, M; Panettieri, RA, Jr; Haczku, A | 2,006 | BACKGROUND: Ozone (O3), a common air pollutant, induces exacerbation of asthma and chronic obstructive pulmonary disease. Pulmonary surfactant protein (SP)-D modulates immune and inflammatory responses in the lung. We have shown previously that SP-D plays a protective role in a mouse model of allergic airway inflammati... | 0 |
88,214 | Weekly periodicity of environmental variables in Phoenix, Arizona | Shutters, ST; Balling, RC, Jr | 2,006 | #Though there is no known meteorological cause for weekly cycling of environmental variables, weekly cycles have been discovered at local to global scales, particularly in areas affected by human urbanization. To uncover such cycles in Phoenix, AZ, and to highlight possible mechanisms for their existence, data from sev... | 0 |
88,641 | Associations between ambient air pollution and daily mortality among persons with diabetes and cardiovascular disease | Goldberg, MS; Burnett, RT; Yale, JF; Valois, MF; Brook, JR | 2,006 | BACKGROUND: Recent studies suggest that persons with diabetes and with cardiovascular disease may be at higher risk for the short-term effects of air pollution. We carried out this mortality time series study in Montreal, Quebec, Canada to confirm these observations and to determine whether diabetics who had other heal... | 1 |
92,943 | The influence of climate on average nitrogen export from large watersheds in the Northeastern United States | Howarth, RW; Swaney, DP; Boyer, EW; Marino, R; Jaworski, N; Goodale, C | 2,006 | The flux of nitrogen in large rivers in North America and Europe is well explained as a function of the net anthropogenic inputs of nitrogen to the landscape, with on average 20 to 25% of these inputs exported in rivers and 75 to 80% of the nitrogen retained or denitrified in the landscape. Here, we use data for averag... | 0 |
191,216 | Allometry of Urtica urens in polluted and unpolluted habitats | Elkarmi, A; Abu Eideh, R | 2,006 | The allometry of Urtica urens (small nettle), an important medicinal plant in many countries, growing in an area near pollution sources and an area away from pollution sources was determined. The allometric coefficients were determined for nonlinear relationships between plant height, stem width, root length, petiole l... | 0 |
186,884 | Atmospheric nitrogen deposition promotes carbon loss from peat bogs | Bragazza, L; Freeman, C; Jones, T; Rydin, H; Limpens, J; Fenner, N; Ellis, T; Gerdol, R; Hajek, M; Hajekh, T; Iacumin, P; Kutnar, L; Tahvanainen, T; Toberman, H | 2,006 | Peat bogs have historically represented exceptional carbon (C) sinks because of their extremely low decomposition rates and consequent accumulation of plant remnants as peat. Among the factors favoring that peat accumulation, a major role is played by the chemical quality of plant litter itself, which is poor in nutrie... | 0 |
195,254 | Photomechanical degradation of thermoplastic elastomers | Bhowmick, AK; Ray, S; Shanmugharaj, AM; Heslop, J; Koppen, N; White, JR | 2,006 | The photodegradation of thermoplastic elastomers designed for outdoor applications was studied with laboratory ultraviolet (UV) exposure in the unstrained state and under tensile strain (25 and 50%). Strained exposure caused a reduction of the strain to failure in subsequent tensile tests. For some combinations of mate... | 0 |
191,747 | A 3-year exposure to CO2 and O3 induced minor changes in soil N cycling in a meadow ecosystem | Kanerva, T; Palojarvi, A; Ramo, K; Ojanpera, K; Esala, M; Manninen, S | 2,006 | We investigated the individual and interactive effects of moderately elevated CO2 (ambient air + 100 ppm) and/or O-3 (40-50 ppb) on soil N cycling and microbial biomass N in a 3-year open-top chamber experiment conducted in meadow mesocosms. The results show that elevated O-3 decreased the concentrations of mineral N a... | 1 |
197,793 | Proatherogenic effects of the cholesterol ozonolysis products, atheronal-A and atheronal-B | Takeuchi, C; Galve, R; Nieva, J; Witter, DP; Wentworth, AD; Troseth, RP; Lerner, RA; Wentworth, P, Jr | 2,006 | The proatherogenic properties of the cholesterol 5,6-secosterols (atheronal-A and atheronal-B), recently discovered in atherosclerotic arteries, have been investigated in terms of their effects on monocyte/macrophage function. A fluorescent analogue of atheronal-B (1) (50 microM), when cultured in either aqueous buffer... | 1 |
191,630 | Quantification of ozone uptake at the stand level in a Pinus canariensis forest in Tenerife, Canary Islands: An approach based on sap flow measurements | Wieser, G; Luis, VC; Cuevas, E | 2,006 | Ozone uptake was studied in a pine forest in Tenerife, Canary Islands, an ecotone with strong seasonal changes in climate. Ambient ozone concentration showed a pronounced seasonal course with high concentrations during the dry and warm period and low concentrations during the wet and cold season. Ozone uptake by contra... | 0 |
89,788 | Associations of traffic-related air pollutants with hospitalisation for first acute myocardial infarction: The HEAPSS study | Lanki, T; Pekkanen, J; Aalto, P; Elosua, R; Berglind, N; D'Ippoliti, D; Kulmala, M; Nyberg, F; Peters, A; Picciotto, S; Salomaa, V; Sunyer, J; Tiittanen, P; Von Klot, S; Forastiere, F | 2,006 | Background: Acute myocardial infarction (AMI) is the leading cause of death attributed to cardiovascular diseases. An association between traffic-related air pollution and AMI has been suggested, but the evidence is still limited. Objectives: to evaluate in a multi-centre study association between hospitalisation for f... | 1 |
630,272 | How well do we understand and evaluate climate change feedback processes? | Bony, S; Colman, R; Kattsov, VM; Allan, RP; Bretherton, CS; Dufresne, JL; Hall, A; Hallegatte, S; Holland, MM; Ingram, W; Randall, DA; Soden, BJ; Tselioudis, G; Webb, MJ | 2,006 | Processes in the climate system that can either amplify or dampen the climate response to an external perturbation are referred to as climate feedbacks. Climate sensitivity estimates depend critically on radiative feedbacks associated with water vapor, lapse rate, clouds, snow, and sea ice, and global estimates of thes... | 1 |
136,205 | Sesquiterpene emissions from loblolly pine and their potential contribution to biogenic aerosol formation in the Southeastern US | Helmig, D; Ortega, J; Guenther, A; Herrick, JD; Geron, C | 2,006 | Sesquiterpene (SQT) and montoterpene (MT) emissions from loblolly pine (Pinus taeda L.) were studied by branch enclosure experiments at Duke Forest in Chapel Hill, NC. Four SQT (?-caryophyllene, ?-bergamotene, ?-humulene, ?-farnesene), five MT (?-pinene, ?-pinene, ?-myrcene, ?-phellandrene, limonene), and the oxygenate... | 0 |
156,807 | Nasal inflammation and personal exposure to fine particles PM2.5 in asthmatic children | Nikasinovic, L; Just, J; Sahraoui, F; Seta, N; Grimfeld, A; Momas, I | 2,006 | BACKGROUND: Outdoor and indoor air pollutants are suspected to induce harmful effects on respiratory health, raising the question of their involvement in allergic asthma and rhinitis. OBJECTIVE: The potential effect of short-term personal exposure to particulate matter with a diameter of less than 2.5 microm (PM2.5) on... | 0 |
199,199 | Effects of long-term ozone exposure on citrus: Chlorophyll a fluorescence and gas exchange | Calatayud, A; Iglesias, DJ; Talon, M; Barreno, E | 2,006 | Three-years-old trees of Satsuma mandarin (Citrus unshiu [Mak.] Marc.) cv. Okitsu were exposed to O-3 fumigation during long term (one year) in open-top chambers. As a result of the treatment, chlorophyll a fluorescence and gas exchange parameters were modified with respect to trees growing in O-3-free conditions. Net ... | 0 |
191,425 | Gene expression profiles of O3-treated Arabidopsis plants | Tosti, N; Pasqualini, S; Borgogni, A; Ederli, L; Falistocco, E; Crispi, S; Paolocci, F | 2,006 | To analyse cellular response to O-3, the tolerant Arabidopsis thaliana genotype Col-0 was exposed to O-3 fumigation (300 ppb) for 6 h and the modulation of gene expression during the treatment (3 h after the beginning of the treatment, T3 h) and the recovery phase (6 h from the end of the treatment, T12 h) assessed by ... | 1 |
595,155 | Mechanism and elimination of a water vapor interference in the measurement of ozone by UV absorbance | Wilson, KL; Birks, JW | 2,006 | water vapor interference in ozone measurements by UV absorption was investigated using four different ozone monitors (TEI models 49 and 49C, Dasibi model 1003-AH, and a 2B Technologies model 202 prototype). In the extreme case of step changes between 0 and 90% relative humidity (RH), a large interference in the range ... | 1 |
1,776,458 | The bronchoprotective effect of inhaling methacholine by using total lung capacity inspirations has a marked influence on the interpretation of the test result | Cockcroft, DW; Davis, BE | 2,006 | Methacholine tests are widely used as a diagnostic aid for asthma. Their strength has been reputed to be the high sensitivity and very infrequent occurrence of false-negative test results (ie, high negative predictive value). There are 2 commonly used methods that have been outlined by the American Thoracic Society. Th... | 0 |
89,841 | Mercury in soils, lakes, and fish in Voyageurs National Park (Minnesota): importance of atmospheric deposition and ecosystem factors | Wiener, JG; Knights, BC; Sandheinrich, MB; Jeremiason, JD; Brigham, ME; Engstrom, DR; Woodruff, LG; Cannon, WF; Balogh, SJ | 2,006 | #Concentrations of methylmercury in game fish from many interior lakes in Voyageurs National Park (MN, U.S.A.) substantially exceed criteria for the protection of human health. We assessed the importance of atmospheric and geologic sources of mercury to interior lakes and watersheds within the Park and identified ecosy... | 0 |
90,906 | Supercritical fluid techniques | Aymonier, C; Cansell, F | 2,006 | null | 0 |
601,964 | Quantification of Ozone Levels in Indoor Environments Generated by Ionization and Ozonolysis Air Purifiers | Britigan, N; Alshawa, A; Nizkorodov, SA | 2,006 | Indoor air purifiers are advertised as safe household products for health-conscious individuals, especially for those suffering from allergies and asthma. However, certain air purifiers produce ozone (O3) during operation, either intentionally or as a byproduct of air ionization. This is a serious concern, because O3 i... | 0 |
97,483 | Pulmonary expression of preproET-1 and preproET-3 mRNAs is altered reciprocally in rats after inhalation of air pollutants | Thomson, E; Kumarathasan, P; Vincent, R | 2,006 | Perturbation of vascular homeostasis is an important mechanism related to the acute health effects of inhaled pollutants. Inhalation of urban particulate matter and ozone by rats has been shown to result in increased synthesis of the potent vasoactive peptide endothelin (ET)-1 in the lungs, with spillover into the circ... | 1 |
90,283 | Using epiphytic macrolichen communities for biomonitoring ammonia in forests of the greater Sierra Nevada, California | Jovan, S; McCune, B | 2,006 | Chronic, excessive nitrogen deposition is potentially an important ecological threat to forests of the greater Sierra Nevada in California. We developed a model for ammonia bioindication, a major nitrogen pollutant in the region, using epiphytic macrolichens. We used non-metric multidimensional scaling to extract gradi... | 1 |
87,679 | Community-specific maximum likelihood estimates of O3-related excess risk in mortality for the NMMAPS US 95 communities study [data submission with attachments to Jee Young Kim] | Bell, ML | 2,006 | null | 0 |
191,592 | The ozone stress transcriptome of pepper (Capsicum annuum L.) | Lee, S; Yun, SC | 2,006 | We used cDNA microarrays to monitor the transcriptome of ozone stress-regulated genes (ORGs) in two pepper cultivars [Capsicum annuum cv. Dabotop (ozone-sensitive) and Capsicum annuum cv. Buchon (ozone-tolerant)l. Ozone stress up- or down-regulated 180 genes more than three-fold. Transcripts of 84 of these ORGs increas... | 1 |
694,708 | Exposure to airborne particulate matter in the ambient, indoor, and occupational environments | Hopke, PK; Rossner, A | 2,006 | Exposure to airborne particulate matter results in various adverse health effects. Unlike other pollutants, such as ozone, sulfur dioxide, carbon monoxide, and oxides of nitrogen, for which there is significant exposure, particulate matter exposure is much more complex because it is not a single chemical species or eve... | 0 |
626,458 | Plant volatiles: Recent advances and future perspectives | Dudareva, N; Negre, F; Nagegowda, DA; Orlova, I | 2,006 | Volatile compounds act as a language that plants use for their communication and interaction with the surrounding environment. To date, a total of 1700 volatile compounds have been isolated from more than 90 plant families. These volatiles, released from leaves, flowers, and fruits into the atmosphere and from roots in... | 1 |
180,321 | Ozone pollution and ozone biomonitoring in European cities Part II. Ozone-induced plant injury and its relationship with descriptors of ozone pollution | Klumpp, A; Ansel, W; Klumpp, G; Vergne, P; Sifakis, N; Sanz, MJ; Rasmussen, S; Ro-Poulsen, H; Ribas, A; Penuelas, J; Kambezidis, H; He, S; Garrec, JP; Calatayud, V | 2,006 | Within the scope of a biomonitoring study conducted in twelve urban agglomerations in eight European countries, the ozone-sensitive bioindicator plant Nicotiana tabacum cv. Bel-W3 was employed in order to assess the occurrence of phytotoxic ozone effects at urban, suburban, rural and traffic-exposed sites. The tobacco ... | 0 |
156,920 | Impact of carbonaceous aerosol emissions on regional climate change | Roeckner, E; Stier, P; Feichter, J; Kloster, S; Esch, M; Fischer-Bruns, L | 2,006 | The past and future evolution of atmospheric composition and climate has been simulated with a version of the Max Planck Institute Earth System Model (MPI-ESM). The system consists of the atmosphere, including a detailed representation of tropospheric aerosols, the land surface, and the ocean, including a model of the ... | 0 |
191,396 | Extraordinary drought of 2003 overrules ozone impact on adult beech trees (Fagus sylvatica) | Low, M; Herbinger, K; Nunn, AJ; Haberle, KH; Leuchner, M; Heerdt, C; Werner, H; Wipfler, P; Pretzsch, H; Tausz, M; Matyssek, R | 2,006 | The extraordinary drought during the summer of 2003 in Central Europe allowed to examine responses of adult beech trees (Fagus sylvatica) to co-occurring stress by soil moisture deficit and elevated O-3 levels under forest conditions in southern Germany. The study comprised tree exposure to the ambient O-3 regime at th... | 1 |
90,746 | Current asthma and respiratory symptoms among pupils in Shanghai, China: Influence of building ventilation, nitrogen dioxide, ozone, and formaldehyde in classrooms | Mi, YH; Norback, D; Tao, J; Mi, YL; Ferm, M | 2,006 | We investigated 10 naturally ventilated schools in Shanghai, in winter. Pupils (13-14 years) in 30 classes received a questionnaire, 1414 participated (99%). Classroom temperatures were 13-21 degrees C (mean 17 degrees C), relative air humidity was 36-82% (mean 56%). The air exchange rate was 2.9-29.4 ac/h (mean 9.1), ... | 0 |
651,826 | Solar ultraviolet-B exposure and cancer incidence and mortality in the United States, 1993-2002 | Boscoe, FP; Schymura, MJ | 2,006 | BACKGROUND: An inverse relationship between solar ultraviolet-B (UV-B) exposure and non-skin cancer mortality has long been reported. Vitamin D, acquired primarily through exposure to the sun via the skin, is believed to inhibit tumor development and growth and reduce mortality for certain cancers. METHODS: We extend t... | 0 |
603,549 | Control Strategy Optimization for Attainment and Exposure Mitigation: Case Study for Ozone in Macon, Georgia | Cohan, DS; Di, T; Yongtao, H; Russell, AG | 2,006 | Implementation of more stringent 8-hour ozone standards has led the U.S. Environmental Protection Agency to designate nonattainment status to 474 counties nationwide, many of which had never previously violated air quality standards. As states select emission control measures to achieve attainment in these regions, the... | 0 |
651,852 | Ultraviolet-B irradiance, vitamin D and human cancer: A vision for the future | Grant, W; Garland, C; Gorham, E | 2,006 | null | 0 |
157,084 | Interannual variability in global biomass burning emissions from 1997 to 2004 | van der Werf, GR; Randerson, JT; Giglio, L; Collatz, GJ; Kasibhatla, PS; Arellano, AF, Jr | 2,006 | Biomass burning represents an important source of atmospheric aerosols and greenhouse gases, yet little is known about its interannual variability or the underlying mechanisms regulating this variability at continental to global scales. Here we investigated fire emissions during the 8 year period from 1997 to 2004 usin... | 1 |
105,294 | Ozone concentrations in the Central Wasatch Mountains of Utah | Wager, DJ; Baker, FA | 2,006 | In the Salt Lake Valley, a June through August SUM60 value (sum of hourly average ozone concentrations > or =60 parts per billion by volume [ppbv]) of 25,000 ppbv-hr was exceeded in 9 yr between 1978 and 1998. Ozone concentrations in the nearby Central Wasatch Mountains were monitored to determine the potential for ... | 0 |
92,163 | Acute and chronic toxicity of nitrate to early life stages of lake trout (Salvelinus namaycush) and lake whitefish (Coregonus clupeaformis) | McGurk, MD; Landry, F; Tang, A; Hanks, CC | 2,006 | The acute and chronic toxicity of the nitrate ion (NO3-) to the embryos, alevins, and swim-up fry of lake trout (Salvelinus namaycush) and lake whitefish (Coregonus clupeaformis) were tested in laboratory aquaria. The acute (96-h) median lethal concentration (LC50) for swim-up fry was 1,121 mg NO3-N/L for lake trout an... | 0 |
89,768 | Air pollution and hospital admissions for asthma in a tropical city: Kaohsiung, Taiwan | Tsai, SS; Cheng, MH; Chiu, HF; Wu, TN; Yang, CY | 2,006 | This study was undertaken to determine whether there is an association between air pollutants levels and hospital admissions for asthma in Kaohsiung, Taiwan. Hospital admissions for asthma and ambient air pollution data for Kaohsiung were obtained for the period from 1996 through 2003. The relative risk of hospital adm... | 0 |
199,831 | Impacts of climate change on natural forest productivity - evidence since the middle of the 20th century | Boisvenue, C; Running, SW | 2,006 | Changes to forest production drivers (light, water, temperature, and site nutrient) over the last 55 years have been documented in peer-reviewed literature. The main objective of this paper is to review documented evidence of the impacts of climate change trends on forest productivity since the middle of the 20th centu... | 0 |
625,172 | Cytokine production, activation marker, and skin homing receptor in children with atopic dermatitis and bronchial asthma | Antunez, C; Torres, MJ; Mayorga, C; Corzo, JL; Jurado, A; Santamaria-Babi, LF; Vera, A; Blanca, M | 2,006 | T cells are known to develop a critical role in the pathogenesis of atopic dermatitis (AD) and bronchial asthma. T cells involved in AD express the skin homing receptor CLA, but no lung homing receptor has been identified in bronchial asthma. We compared different cell markers and the cytokine production in T cells fro... | 0 |
664,500 | Role of climate change in global predictions of future tropospheric ozone and aerosols | Liao, H; Chen, WT; Seinfeld, JH | 2,006 | [ 1] A unified tropospheric chemistry-aerosol model within the Goddard Institute for Space Studies general circulation model II' is applied to simulate an equilibrium CO2-forced climate in the year 2100 to examine the effects of climate change on global distributions of tropospheric ozone and sulfate, nitrate, ammonium... | 1 |
90,761 | Air quality measurements for the aerosol research and inhalation epidemiology study | Hansen, DA; Edgerton, E; Hartsell, B; Jansen, J; Burge, H; Koutrakis, P; Rogers, C; Suh, H; Chow, J; Zielinska, B; Mcmurry, P; Mulholland, J; Russell, A; Rasmussen, R | 2,006 | Measurements of pollutant gases, airborne particulate matter mass and composition, and meteorology have been made at a core site near downtown Atlanta, GA, since August 1998 in support of the Aerosol Research and Inhalation Epidemiology Study (ARIES). This site is one of eight in the Southeastern Aerosol Research and C... | 0 |
89,785 | Vehicular air pollution, playgrounds, and youth athletic fields | Rundell, KW; Caviston, R; Hollenbach, AM; Murphy, K | 2,006 | In spite of epidemiological evidence concerning vehicular air pollution and adverse respiratory/cardiovascular health, many athletic fields and school playgrounds are adjacent to high traffic roadways and could present long-term health risks for exercising children and young adults. Particulate matter (PM1,0.02-1.0 m d... | 0 |
89,800 | Air pollution and lung function among susceptible adult subjects: A panel study | Lagorio, S; Forastiere, F; Pistelli, R; Iavarone, I; Michelozzi, P; Fano, V; Marconi, A; Ziemacki, G; Ostro, BD | 2,006 | BACKGROUND: Adverse health effects at relatively low levels of ambient air pollution have consistently been reported in the last years. We conducted a time-series panel study of subjects with chronic obstructive pulmonary disease (COPD), asthma, and ischemic heart disease (IHD) to evaluate whether daily levels of air p... | 1 |
89,784 | Factors affecting the association between ambient concentrations and personal exposures to particles and gases | Sarnat, SE; Coull, BA; Schwartz, J; Gold, DR; Suh, HH | 2,006 | Results from air pollution exposure assessment studies suggest that ambient fine particles [particulate matter with aerodynamic diameter<or=2.5 microg (PM2.5)], but not ambient gases, are strong proxies of corresponding personal exposures. For particles, the strength of the personal-ambient association can differ by pa... | 1 |
191,702 | Tropospheric ozone and interspecific competition between yellow nutsedge and pima cotton | Grantz, DA; Shrestha, A | 2,006 | Plant competition may be altered by ongoing climate change, including rising tropospheric O-3. This may depend less on the O-3 tolerance of isolated species than on O-3 effects on the mechanisms of competition. To explore this possibility, we investigate the growth and gas exchange responses of a crop-weed system in pa... | 1 |
88,419 | Traffic, susceptibility, and childhood asthma | Mcconnell, R; Berhane, K; Yao, L; Jerrett, M; Lurmann, F; Gilliland, F; Kunzli, N; Gauderman, J; Avol, E; Thomas, D; Peters, J | 2,006 | Results from studies of traffic and childhood asthma have been inconsistent, but there has been little systematic evaluation of susceptible subgroups. In this study, we examined the relationship of local traffic-related exposure and asthma and wheeze in southern California school children (5-7 years of age) . Lifetime ... | 0 |
677,536 | Ozone bioindicators | null | 2,006 | Species considered | 1 |
158,001 | Hourly and seasonal variation in photosynthesis and stomatal conductance of soybean grown at future CO2 and ozone concentrations for 3 years under fully open-air field conditions | Bernacchi, CJ; Leaky, ADB; Heady, LE; Morgan, PB; Dohleman, FG; Mcgrath, JM; Gillespie, KM; Wittig, VE; Rogers, A; Long, SP; Ort, DR | 2,006 | Numerous controlled environment studies have suggested that elevation of atmospheric [CO2] to 550 ppm, the concentration anticipated for the year 2050, should increase leaf photosynthetic carbon assimilation (A) by ca. 40%. Simultaneously studies of the effects of tropospheric ozone concentration ([O3]), which has been... | 1 |
89,814 | Association of ventricular arrhythmias detected by implantable cardioverter defibrillator and ambient air pollutants in the St Louis, Missouri metropolitan area | Rich, DQ; Kim, MH; Turner, JR; Mittleman, MA; Schwartz, J; Catalano, PJ; Dockery, DW | 2,006 | BACKGROUND: It has previously been reported that the risk of ventricular arrhythmias is positively associated with ambient air pollution among patients with implantable cardioverter defibrillators (ICD) in Boston. AIMS: To assess the association of community exposures to air pollution with ventricular arrhythmias in a ... | 1 |
199,206 | Ozone concentration gradients and wind conditions in Norway spruce (Picea abies) forests in Sweden | Karlsson, PE; Hansson, M; Hoglund, HO; Pleijel, H | 2,006 | Ozone concentrations and wind conditions were measured at different heights above ground inside two different Norway spruce forest canopies in Sweden and compared to those outside or above the forests. Compared to high above ground outside or above the canopies, the ozone concentrations inside the Norway spruce forests... | 0 |
191,221 | Analysis of oxidative signalling induced by ozone in Arabidopsis thaliana | Mahalingam, R; Jambunathan, N; Gunjan, SK; Faustin, E; Weng, H; Ayoubi, P | 2,006 | We are using acute ozone as an elicitor of endogenous reactive oxygen species (ROS) to understand oxidative signalling in Arabidopsis. Temporal patterns of ROS following a 6 h exposure to 300 nL L-1 of ozone in ozone-sensitive Wassilewskija (Ws-0) ecotype showed a biphasic ROS burst with a smaller peak at 4 h and a lar... | 1 |
694,741 | Air pollution and asthma in children | Just, J; Nisakinovic, L; Laoudi, Y; Grimfeld, A | 2,006 | The prevalence of asthma and allergic diseases has increased world-wide during the last quarter of the 20th century, particularly among children and adolescents. No change common to all sites where asthma has increased throughout the world has been identified, suggesting that this 'epidemic' phenomenon is likely due to... | 0 |
608,180 | Spatial interpolation of ambient ozone concentrations from sparse monitoring points in Belgium | Hooyberghs, J; Mensink, C; Dumont, G; Fierens, F | 2,006 | Due to scientific interest on the one hand and political and regulatory obligations on the other hand the monitoring of ozone in the troposphere is an important issue. To this end, in Belgium as in many other countries, a fixed network of monitoring stations is operated. In order to estimate the ozone concentrations ov... | 0 |
111,415 | Urinary biomarkers of di-isononyl phthalate in rats | Silva, MJ; Kato, K; Wolf, C; Samandar, E; Silva, SS; Gray, EL; Needham, LL; Calafat, AM | 2,006 | Commercial di-isononyl phthalate (DiNP) is a mixture of various branched-chain dialkyl phthalates mainly containing nine-carbon alkyl isomers. At high doses in rodents, DiNP is a carcinogen, and a developmental toxicant. After exposure, the diester isomers are de-esterified to form hydrolytic monoesters, monoisononyl p... | 0 |
91,179 | Is outdoor air pollution associated with physician visits for allergic rhinitis among the elderly in Toronto, Canada? | Villeneuve, PJ; Doiron, MS; Stieb, D; Dales, R; Burnett, RT; Dugandzic, R | 2,006 | BACKGROUND: While a number of studies suggest that air pollution is associated with allergic rhinitis in children, findings among adults have been equivocal. The aim of this study was to examine the relationship between outdoor air pollution and physician visits for allergic rhinitis among individuals>or=65 years of ag... | 1 |
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