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Boonupara T, Udomkun P, Khan E, Kajitvichyanukul P. Airborne Pesticides from Agricultural Practices: A Critical Review of Pathways, Influencing Factors, and Human Health Implications. TOXICS 2023; 11:858. [PMID: 37888709 PMCID: PMC10611335 DOI: 10.3390/toxics11100858] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 10/08/2023] [Accepted: 10/11/2023] [Indexed: 10/28/2023]
Abstract
This critical review examines the release of pesticides from agricultural practices into the air, with a focus on volatilization, and the factors influencing their dispersion. The review delves into the effects of airborne pesticides on human health and their contribution to anthropogenic air pollution. It highlights the necessity of interdisciplinary research encompassing science, technology, public policy, and agricultural practices to effectively mitigate the risks associated with pesticide volatilization and spray dispersion. The text acknowledges the need for more research to understand the fate and transport of airborne pesticides, develop innovative application technologies, improve predictive modeling and risk assessment, and adopt sustainable pest management strategies. Robust policies and regulations, supported by education, training, research, and development, are crucial to ensuring the safe and sustainable use of pesticides for human health and the environment. By providing valuable insights, this review aids researchers and practitioners in devising effective and sustainable solutions for safeguarding human health and the environment from the hazards of airborne pesticides.
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Affiliation(s)
- Thirasant Boonupara
- Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand (P.U.)
| | - Patchimaporn Udomkun
- Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand (P.U.)
- Office of Research Administration, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Eakalak Khan
- Civil and Environmental Engineering and Construction Department, University of Nevada, Las Vegas, NV 89154-4015, USA
| | - Puangrat Kajitvichyanukul
- Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand (P.U.)
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Bardakov R, Krejci R, Riipinen I, Ekman AML. The Role of Convective Up- and Downdrafts in the Transport of Trace Gases in the Amazon. JOURNAL OF GEOPHYSICAL RESEARCH. ATMOSPHERES : JGR 2022; 127:e2022JD037265. [PMID: 36591340 PMCID: PMC9787969 DOI: 10.1029/2022jd037265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 09/08/2022] [Accepted: 09/11/2022] [Indexed: 06/17/2023]
Abstract
Deep convective clouds can redistribute gaseous species and particulate matter among different layers of the troposphere with important implications for atmospheric chemistry and climate. The large number of atmospheric trace gases of different volatility makes it challenging to predict their partitioning between hydrometeors and gas phase inside highly dynamic deep convective clouds. In this study, we use an ensemble of 51,200 trajectories simulated with a cloud-resolving model to characterize up- and downdrafts within Amazonian deep convective clouds. We also estimate the transport of a set of hypothetical non-reactive gases of different volatility, within the up- and downdrafts. We find that convective air parcels originating from the boundary layer (i.e., originating at 0.5 km altitude), can transport up to 25% of an intermediate volatility gas species (e.g., methyl hydrogen peroxide) and up to 60% of high volatility gas species (e.g., n-butane) to the cloud outflow above 10 km through the mean convective updraft. At the same time, the same type of gases can be transported to the boundary layer from the middle troposphere (i.e., originating at 5 km) within the mean convective downdraft with an efficiency close to 100%. Low volatility gases (e.g., nitric acid) are not efficiently transported, neither by the updrafts nor downdrafts, if the gas is assumed to be fully retained in a droplet upon freezing. The derived properties of the mean up- and downdraft can be used in future studies for investigating convective transport of a larger set of reactive trace gases.
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Affiliation(s)
- Roman Bardakov
- Department of MeteorologyStockholm UniversityStockholmSweden
- Bolin Centre for Climate ResearchStockholm UniversityStockholmSweden
- Department of Environmental Science (ACES)Stockholm UniversityStockholmSweden
| | - Radovan Krejci
- Bolin Centre for Climate ResearchStockholm UniversityStockholmSweden
- Department of Environmental Science (ACES)Stockholm UniversityStockholmSweden
| | - Ilona Riipinen
- Bolin Centre for Climate ResearchStockholm UniversityStockholmSweden
- Department of Environmental Science (ACES)Stockholm UniversityStockholmSweden
| | - Annica M. L. Ekman
- Department of MeteorologyStockholm UniversityStockholmSweden
- Bolin Centre for Climate ResearchStockholm UniversityStockholmSweden
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Starzec M, Mullendore GL, Homeyer CR. Retrievals of Convective Detrainment Heights Using Ground-Based Radar Observations. JOURNAL OF GEOPHYSICAL RESEARCH. ATMOSPHERES : JGR 2020; 125:e2019JD031164. [PMID: 33959466 PMCID: PMC8098003 DOI: 10.1029/2019jd031164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 02/12/2020] [Indexed: 06/12/2023]
Abstract
To better constrain model simulations, more observations of convective detrainment heights are needed. For the first time, ground-based S band radar observations are utilized to create a comprehensive view of irreversible convective transport over a 7-year period for the months of May and July across the United States. The radar observations are coupled with a volumetric radar echo classification scheme and a methodology that uses the convective anvil as proxy for convective detrainment to determine the level of maximum detrainment (LMD) for deep moist convection. The LMD height retrievals are subset by month (i.e., May and July), by morphology (i.e., mesoscale convective system, MCS, and quasi-isolated strong convection, QISC), and region (i.e., northcentral, southcentral, northeast, and southeast). Overall, 135,890 deep convective storms were successfully sampled and had a mean LMD height of 8.6 km or tropopause-relative mean LMD height of -4.3 km; however, LMD heights were found to extend up to 2 km above the tropopause. May storms had higher mean tropopause-relative LMD heights, but July storms contained the highest overall LMD heights that more commonly extended above the tropopause. QISC had higher mean tropopause-relative LMD heights and more commonly had LMD heights above the tropopause while only a few MCSs had LMD heights above the tropopause. The regional analysis showed that northern regions have higher mean LMD heights due to large amounts of diurnally driven convection being sampled in the southern regions. By using the anvil top, the highest possible convective detrainment heights extended up to 6 km above the tropopause.
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Affiliation(s)
- M. Starzec
- Department of Atmospheric Sciences, University of North Dakota, Grand Forks, ND, USA
| | - G. L. Mullendore
- Department of Atmospheric Sciences, University of North Dakota, Grand Forks, ND, USA
| | - C. R. Homeyer
- School of Meteorology, University of Oklahoma, Norman, OK, USA
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Heavens NG. An Observational Overview of Dusty Deep Convection in Martian Dust Storms. JOURNAL OF THE ATMOSPHERIC SCIENCES 2019; 76:3299-3326. [PMID: 32848258 PMCID: PMC7446947 DOI: 10.1175/jas-d-19-0042.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Deep convection, as used in meteorology, refers to the rapid ascent of air parcels in the Earth's troposphere driven by the buoyancy generated by phase change in water. Deep convection undergirds some of the Earth's most important and violent weather phenomena and is responsible for many aspects of the observed distribution of energy, momentum, and constituents (particularly water) in the Earth's atmosphere. Deep convection driven by buoyancy generated by the radiative heating of atmospheric dust may be similarly important in the atmosphere of Mars but lacks a systematic description. Here we propose a comprehensive framework for this phenomenon of dusty deep convection (DDC) that is supported by energetic calculations and observations of the vertical dust distribution and exemplary dusty deep convective structures within local, regional, and global dust storm activity. In this framework, DDC is distinct from a spectrum of weaker dusty convective activity because DDC originates from pre-existing or concurrently forming mesoscale circulations that generate high surface dust fluxes, oppose large-scale horizontal advective-diffusive processes, and are thus able to maintain higher dust concentrations than typically simulated. DDC takes two distinctive forms. Mesoscale circulations that form near Mars's highest volcanoes in dust storms of all scales can transport dust to the base of the upper atmosphere in as little as two hours. In the second distinctive form, mesoscale circulations at low elevations within regional and global dust storm activity generate freely convecting streamers of dust that are sheared into the middle atmosphere over the diurnal cycle.
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Affiliation(s)
- Nicholas G. Heavens
- Department of Atmospheric and Planetary Sciences, Hampton University, Hampton, Virginia; Space Science Institute, Boulder, Colorado
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Li Y, Pickering KE, Barth MC, Bela MM, Cummings KA, Allen DJ. Evaluation of Parameterized Convective Transport of Trace Gases in Simulation of Storms Observed During the DC3 Field Campaign. JOURNAL OF GEOPHYSICAL RESEARCH. ATMOSPHERES : JGR 2018; 123:11238-11261. [PMID: 32023330 PMCID: PMC6999733 DOI: 10.1029/2018jd028779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Accepted: 09/11/2018] [Indexed: 06/10/2023]
Abstract
Deep convective transport of surface moisture and pollution from the planetary boundary layer to the upper troposphere and lower stratosphere affects the radiation budget and climate. This study uses cloud-parameterized Weather Research and Forecasting model coupled with Chemistry simulations to analyze the subgrid deep convective transport of CO at 12- and 36-km horizontal resolution in supercell and mesoscale convective systems observed during the 2012 Deep Convective Clouds and Chemistry field campaign and compares the simulation results with aircraft measurements and cloud-resolved simulations. The best Weather Research and Forecasting simulation of these storms was obtained with the use of the Grell-Freitas convective scheme. The default Weather Research and Forecasting model coupled with Chemistry subgrid convective transport scheme was replaced with a scheme to compute convective transport within the Grell-Freitas subgrid cumulus parameterization, which resulted in improved transport simulations. We examined the CO tendencies due to subgrid- and grid-scale convective transport. Results showed that the subgrid convective transport started earlier than the grid-scale convective transport. The subgrid-scale convective transport reached its maximum during the hour prior to the formation of the grid-scale constant-altitude detrainment layer. After that, both the subgrid- and grid-scale convective transport began to decrease. The subgrid-scale convective transport played a more significant role in the supercell case than the mesoscale convective system case. Subgrid contribution reached ~90% at the beginning of the storm and decreased to ~30% (17%) for the 36-km (12-km) domain 4 hr later.
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Affiliation(s)
- Y. Li
- Department of Atmospheric and Oceanic Sciences, University of Maryland, College Park, MD, USA
| | - K. E. Pickering
- Department of Atmospheric and Oceanic Sciences, University of Maryland, College Park, MD, USA
| | - M. C. Barth
- National Center for Atmospheric Research, Boulder, CO, USA
| | - M. M. Bela
- University of Colorado Cooperative Institute for Research in Environmental Sciences (CIRES) at the NOAA Earth System Research Laboratory (ESRL) Chemical Sciences Division, Boulder, CO, USA
| | - K. A. Cummings
- Kennedy Space Center, National Aeronautics and Space Administration (NASA), FL, USA
| | - D. J. Allen
- Department of Atmospheric and Oceanic Sciences, University of Maryland, College Park, MD, USA
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Kuang S, Newchurch MJ, Thompson AM, Stauffer RM, Johnson BJ, Wang L. Ozone Variability and Anomalies Observed during SENEX and SEAC 4RS Campaigns in 2013. JOURNAL OF GEOPHYSICAL RESEARCH. ATMOSPHERES : JGR 2017; 122:11227-11241. [PMID: 30057866 PMCID: PMC6058320 DOI: 10.1002/2017jd027139] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Tropospheric ozone variability occurs because of multiple forcing factors including surface emission of ozone precursors, stratosphere-to-troposphere transport (STT), and meteorological conditions. Analyses of ozonesonde observations made in Huntsville, AL, during the peak ozone season (May to September) in 2013 indicate that ozone in the planetary boundary layer was significantly lower than the climatological average, especially in July and August when the Southeastern United States (SEUS) experienced unusually cool and wet weather. Because of a large influence of the lower stratosphere, however, upper-tropospheric ozone was mostly higher than climatology, especially from May to July. Tropospheric ozone anomalies were strongly anti-correlated (or correlated) with water vapor (or temperature) anomalies with a correlation coefficient mostly about 0.6 throughout the entire troposphere. The regression slopes between ozone and temperature anomalies for surface up to mid-troposphere are within 3.0-4.1 ppbv·K-1. The occurrence rates of tropospheric ozone laminae due to STT are ≥50% in May and June and about 30% in July, August and September suggesting that the stratospheric influence on free-tropospheric ozone could be significant during early summer. These STT laminae have a mean maximum ozone enhancement over the climatology of 52±33% (35±24 ppbv) with a mean minimum relative humidity of 2.3±1.7%.
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Affiliation(s)
- Shi Kuang
- Earth System Science Center, University of Alabama in Huntsville, Huntsville, AL 35805, USA
| | - Michael J Newchurch
- Atmospheric Science Department, University of Alabama in Huntsville, Huntsville, AL 35805, USA
| | - Anne M Thompson
- Earth Science Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA
| | - Ryan M Stauffer
- Earth Science Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA
- Universities Space Research Association, Columbia, MD 21046, USA
| | - Bryan J Johnson
- Global Monitoring Division, NOAA Earth System Research Laboratory, Boulder, CO 80305, USA
| | - Lihua Wang
- Earth System Science Center, University of Alabama in Huntsville, Huntsville, AL 35805, USA
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Ryan WF. The air quality forecast rote: Recent changes and future challenges. JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION (1995) 2016; 66:576-96. [PMID: 26889915 DOI: 10.1080/10962247.2016.1151469] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
UNLABELLED Air quality forecasting is a recent development, with most programs initiated only in the last 20 years. During the last decade, forecast preparation procedure-the forecast rote-has changed dramatically. This paper summarizes the unique challenges posed by air quality forecasting, details the current forecast rote, and analyzes prospects for future improvements. Because air quality forecasts must diagnose and predict several pollutants and their precursors in addition to standard meteorological variables, it is, compared with weather forecasts, a higher-uncertainty forecast. Forecasters seek to contain the uncertainty by "anchoring" the forecast, using an a priori field, and then "adjusting" the forecast using additional information. The air quality a priori, or first guess, field is a blend of past, current, and near-term future observations of the pollutants of interest, on both local and regional scales, and is typically coupled with predicted air parcel trajectories. Until recently, statistical methods, based on long-term training data sets, were used to adjust the first guess. However, reductions in precursor emissions in the United States, beginning in the late 1990s and continuing to the present, eroded the stationarity assumption for the training data sets and degraded forecast skill. Beginning in the mid-2000s, output from modified numerical air quality prediction (NAQP) models, originally developed to test pollution control strategies, became available in near real time for forecast support. The current adjustment process begins with the analyses and postprocessing of individual NAQP models and their ad hoc ensembles, often in concert with new statistical techniques. The final adjustment step uses forecaster expertise to assess the impact of mesoscale features not resolved by the NAQP models. It is expected that advances in model resolution, chemical data assimilation, and the formulation of emissions fields will improve mesoscale predictions by NAQP models and drive future changes in the forecast rote. IMPLICATIONS Routine air quality forecasts are now issued for nearly all the major U.S. metropolitan areas. Methods of forecast preparation-the forecast rote-have changed significantly in the last decade. Numerical air quality models have matured and are now an indispensable part of the forecasting process. All forecasting methods, particularly statistically based models, must be continually calibrated to account for ongoing local- and regional-scale emission reductions.
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Affiliation(s)
- William F Ryan
- a Department of Meteorology , The Pennsylvania State University, University Park , Pennsylvania , USA
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Vujović D, Vučković V, Curić M. Effect of topography on sulfate redistribution in Cumulonimbus cloud development. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:3415-3426. [PMID: 24243093 DOI: 10.1007/s11356-013-2283-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Accepted: 10/24/2013] [Indexed: 06/02/2023]
Abstract
An aqueous chemical module is created and included into a complex three-dimensional atmospheric cloud-resolving mesoscale model. In the chemical module, oxidation of S(IV) by ozone and hydrogen peroxide in cloud-water and rainwater, as important process of the sulfate production is included. To examine the impact of topography on the sulfate redistribution in a clean and a polluted environment, the complex topography of Serbia is included in the model. Numerical simulations of an isolated summer Cumulonimbus cloud shows that thunderstorms generate very strong vertical sulfate redistribution from the planetary boundary layer to the upper troposphere. This redistribution is sensitive to cloud dynamics, while cloud microphysics and precipitation determine wet removal of the chemical species. In simulations with realistic topography, the chemical species are transported over larger distances close to the surface, while in the upper atmosphere, there is no difference compared to the simulations without topography. The sensitivity tests of cloud chemistry to the physical processes are made. Omission of nucleation and impact scavenging of aerosols in the model simulations shows that 75.8 and 62.5 % of total sulfur mass deposited in the base experiment for the clean and the polluted environment, respectively, is the result of other processes. Exclusion of oxidation accounted for 19.2 and 37.7 % of total sulfur deposited for clean and polluted environment. Ignoring the ice phase almost not change mass of deposited sulfur: there is an increase of 2.9 and 1.5 % for clean and polluted atmosphere, respectively. Real topography conditions affect the sulfate redistribution in the sense of greater possibilities of transport. Numerical simulations without real topography give an artificial increase of deposited sulfur mass of about 25-30 %.
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Affiliation(s)
- Dragana Vujović
- Faculty of Physics, Department of Meteorology, University of Belgrade, Dobračina 16, 11000, Belgrade, Serbia,
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Murphy DM, Fahey DW, Proffitt MH, Liu SC, Chan KR, Eubank CS, Kawa SR, Kelly KK. Reactive nitrogen and its correlation with ozone in the lower stratosphere and upper troposphere. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/92jd00681] [Citation(s) in RCA: 206] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Pickering KE, Dickerson RR, Luke WT, Nunnermacker LJ. Clear-sky vertical profiles of trace gases as influenced by upstream convective activity. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/jd094id12p14879] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Hübler G, Fahey DW, Ridley BA, Gregory GL, Fehsenfeld FC. Airborne measurements of total reactive odd nitrogen (NOy). ACTA ACUST UNITED AC 2012. [DOI: 10.1029/91jd02326] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Kritz MA, Rosner SW, Kelly KK, Loewenstein M, Chan KR. Radon measurements in the lower tropical stratosphere: Evidence for rapid vertical transport and dehydration of tropospheric air. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/92jd02524] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Yegorova EA, Allen DJ, Loughner CP, Pickering KE, Dickerson RR. Characterization of an eastern U.S. severe air pollution episode using WRF/Chem. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2010jd015054] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Andersen MPS, Axson JL, Michelsen RRH, Nielsen OJ, Iraci LT. Solubility of acetic acid and trifluoroacetic acid in low-temperature (207-245 k) sulfuric acid solutions: implications for the upper troposphere and lower stratosphere. J Phys Chem A 2011; 115:4388-96. [PMID: 21462920 DOI: 10.1021/jp200118g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The solubility of gas-phase acetic acid (CH(3)COOH, HAc) and trifluoroacetic acid (CF(3)COOH, TFA) in aqueous sulfuric acid solutions was measured in a Knudsen cell reactor over ranges of temperature (207-245 K) and acid composition (40-75 wt %, H(2)SO(4)). For both HAc and TFA, the effective Henry's law coefficient, H*, is inversely dependent on temperature. Measured values of H* for TFA range from 1.7 × 10(3) M atm(-1) in 75.0 wt % H(2)SO(4) at 242.5 K to 3.6 × 10(8) M atm(-1) in 40.7 wt % H(2)SO(4) at 207.8 K. Measured values of H* for HAc range from 2.2 × 10(5) M atm(-1) in 57.8 wt % H(2)SO(4) at 245.0 K to 3.8 × 10(8) M atm(-1) in 74.4 wt % H(2)SO(4) at 219.6 K. The solubility of HAc increases with increasing H(2)SO(4) concentration and is higher in strong sulfuric acid than in water. In contrast, the solubility of TFA decreases with increasing sulfuric acid concentration. The equilibrium concentration of HAc in UT/LS aerosol particles is estimated from our measurements and is found to be up to several orders of magnitude higher than those determined for common alcohols and small carbonyl compounds. On the basis of our measured solubility, we determine that HAc in the upper troposphere undergoes aerosol partitioning, though the role of H(2)SO(4) aerosol particles as a sink for HAc in the upper troposphere and lower stratosphere will only be discernible under high atmospheric sulfate perturbations.
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Martini M, Allen DJ, Pickering KE, Stenchikov GL, Richter A, Hyer EJ, Loughner CP. The impact of North American anthropogenic emissions and lightning on long-range transport of trace gases and their export from the continent during summers 2002 and 2004. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2010jd014305] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Langford AO, Tucker SC, Senff CJ, Banta RM, Brewer WA, Alvarez RJ, Hardesty RM, Lerner BM, Williams EJ. Convective venting and surface ozone in Houston during TexAQS 2006. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2009jd013301] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Fan J, Comstock JM, Ovchinnikov M, McFarlane SA, McFarquhar G, Allen G. Tropical anvil characteristics and water vapor of the tropical tropopause layer: Impact of heterogeneous and homogeneous freezing parameterizations. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2009jd012696] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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18
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Guo Z, Li Z, Farquhar J, Kaufman AJ, Wu N, Li C, Dickerson RR, Wang P. Identification of sources and formation processes of atmospheric sulfate by sulfur isotope and scanning electron microscope measurements. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2009jd012893] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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19
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Mullendore GL, Homann AJ, Bevers K, Schumacher C. Radar reflectivity as a proxy for convective mass transport. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008jd011431] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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20
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Cooper OR, Eckhardt S, Crawford JH, Brown CC, Cohen RC, Bertram TH, Wooldridge P, Perring A, Brune WH, Ren X, Brunner D, Baughcum SL. Summertime buildup and decay of lightning NOx
and aged thunderstorm outflow above North America. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008jd010293] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- O. R. Cooper
- Cooperative Institute for Research in Environmental Sciences; University of Colorado; Boulder Colorado USA
- Chemical Sciences Division, Earth System Research Laboratory; NOAA; Boulder Colorado USA
| | - S. Eckhardt
- Department of Regional and Global Pollution Issues; Norwegian Institute for Air Research; Kjeller Norway
| | | | - C. C. Brown
- Science System and Applications, Inc.; Hampton Virginia USA
| | - R. C. Cohen
- Department of Chemistry and Department of Earth and Planetary Science; University of California; Berkeley California USA
| | - T. H. Bertram
- Department of Chemistry and Department of Earth and Planetary Science; University of California; Berkeley California USA
| | - P. Wooldridge
- Department of Chemistry and Department of Earth and Planetary Science; University of California; Berkeley California USA
| | - A. Perring
- Department of Chemistry and Department of Earth and Planetary Science; University of California; Berkeley California USA
| | - W. H. Brune
- Department of Meteorology; Pennsylvania State University; University Park Pennsylvania USA
| | - X. Ren
- Department of Meteorology; Pennsylvania State University; University Park Pennsylvania USA
| | - D. Brunner
- Laboratory for Air Pollution/Environmental Technology, Materials Science and Technology; EMPA; Dübendorf Switzerland
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Biomass burning in Amazonia: Emissions, long-range transport of smoke and its regional and remote impacts. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008gm000847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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22
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Choi Y, Vay SA, Vadrevu KP, Soja AJ, Woo JH, Nolf SR, Sachse GW, Diskin GS, Blake DR, Blake NJ, Singh HB, Avery MA, Fried A, Pfister L, Fuelberg HE. Characteristics of the atmospheric CO2signal as observed over the conterminous United States during INTEX-NA. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007jd008899] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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23
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Li Z, Chen H, Cribb M, Dickerson R, Holben B, Li C, Lu D, Luo Y, Maring H, Shi G, Tsay SC, Wang P, Wang Y, Xia X, Zheng Y, Yuan T, Zhao F. Preface to special section on East Asian Studies of Tropospheric Aerosols: An International Regional Experiment (EAST-AIRE). ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2007jd008853] [Citation(s) in RCA: 133] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Bhattacharjee PS, Prasad AK, Kafatos M, Singh RP. Influence of a dust storm on carbon monoxide and water vapor over the Indo-Gangetic Plains. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2007jd008469] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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25
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Dacre HF, Gray SL, Belcher SE. A case study of boundary layer ventilation by convection and coastal processes. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd007984] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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26
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Barth MC, Kim S, Skamarock WC, Stuart AL, Pickering KE, Ott LE. Simulations of the redistribution of formaldehyde, formic acid, and peroxides in the 10 July 1996 Stratospheric‐Tropospheric Experiment: Radiation, Aerosols, and Ozone deep convection storm. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd008046] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- M. C. Barth
- National Center for Atmospheric Research Boulder Colorado USA
| | - S.‐W. Kim
- National Center for Atmospheric Research Boulder Colorado USA
- Now at National Oceanic and Atmospheric Administration, Earth Systems Research Laboratory and Cooperative Institute for Research in Environmental Studies, University of Colorado, Boulder, Colorado, USA
| | - W. C. Skamarock
- National Center for Atmospheric Research Boulder Colorado USA
| | - A. L. Stuart
- Department of Environmental and Occupational Health University of South Florida Tampa Florida USA
| | - K. E. Pickering
- Department of Atmospheric and Oceanic Science University of Maryland College Park Maryland USA
- Now at Laboratory for Atmospheres, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
| | - L. E. Ott
- Department of Atmospheric and Oceanic Science University of Maryland College Park Maryland USA
- Now at Global Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
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27
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Thompson AM, Stone JB, Witte JC, Miller SK, Oltmans SJ, Kucsera TL, Ross KL, Pickering KE, Merrill JT, Forbes G, Tarasick DW, Joseph E, Schmidlin FJ, McMillan WW, Warner J, Hintsa EJ, Johnson JE. Intercontinental Chemical Transport Experiment Ozonesonde Network Study (IONS) 2004: 2. Tropospheric ozone budgets and variability over northeastern North America. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd007670] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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28
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Bertram TH, Perring AE, Wooldridge PJ, Crounse JD, Kwan AJ, Wennberg PO, Scheuer E, Dibb J, Avery M, Sachse G, Vay SA, Crawford JH, McNaughton CS, Clarke A, Pickering KE, Fuelberg H, Huey G, Blake DR, Singh HB, Hall SR, Shetter RE, Fried A, Heikes BG, Cohen RC. Direct Measurements of the Convective Recycling of the Upper Troposphere. Science 2007; 315:816-20. [PMID: 17204609 DOI: 10.1126/science.1134548] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
We present a statistical representation of the aggregate effects of deep convection on the chemistry and dynamics of the upper troposphere (UT) based on direct aircraft observations of the chemical composition of the UT over the eastern United States and Canada during summer. These measurements provide unique observational constraints on the chemistry occurring downwind of convection and the rate at which air in the UT is recycled. These results provide quantitative measures that can be used to evaluate global climate and chemistry models.
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Affiliation(s)
- Timothy H Bertram
- Department of Chemistry, University of California, Berkeley, CA 94720, USA
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29
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Affiliation(s)
- Lyatt Jaeglé
- Department of Atmospheric Sciences, University of Washington, Seattle, WA 98195, USA.
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30
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Leclair De Bellevue J, Réchou A, Baray JL, Ancellet G, Diab RD. Signatures of stratosphere to troposphere transport near deep convective events in the southern subtropics. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2005jd006947] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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31
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Owen RC, Cooper OR, Stohl A, Honrath RE. An analysis of the mechanisms of North American pollutant transport to the central North Atlantic lower free troposphere. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2006jd007062] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- R. C. Owen
- Department of Civil and Environmental Engineering; Michigan Technological University; Houghton Michigan USA
| | - O. R. Cooper
- Cooperative Institute for Research in Environmental Sciences; University of Colorado/NOAA Earth System Research Laboratory; Boulder Colorado USA
| | - A. Stohl
- Norwegian Institute for Air Research; Kjeller Norway
| | - R. E. Honrath
- Department of Civil and Environmental Engineering; Michigan Technological University; Houghton Michigan USA
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32
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Michelsen RR, Staton SJR, Iraci LT. Uptake and Dissolution of Gaseous Ethanol in Sulfuric Acid. J Phys Chem A 2006; 110:6711-7. [PMID: 16722687 DOI: 10.1021/jp056234s] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The solubility of gas-phase ethanol (ethyl alcohol, CH3CH2OH, EtOH) in aqueous sulfuric acid solutions was measured in a Knudsen cell reactor over ranges of temperature (209-237 K) and acid composition (39-76 wt % H2SO4). Ethanol is very soluble under these conditions: effective Henry's law coefficients, H, range from 4 x 10(4) M atm(-1) in the 227 K, 39 wt % acid to greater than 10(7) M atm(-1) in the 76 wt % acid. In 76 wt % sulfuric acid, ethanol solubility exceeds that which can be precisely determined using the Knudsen cell technique but falls in the range of 10(7)-10(10) M atm(-1). The equilibrium concentration of ethanol in upper tropospheric/lower stratospheric (UT/LS) sulfate particles is calculated from these measurements and compared to other small oxygenated organic compounds. Even if ethanol is a minor component in the gas phase, it may be a major constituent of the organic fraction in the particle phase. No evidence for the formation of ethyl hydrogen sulfate was found under our experimental conditions. While the protonation of ethanol does augment solubility at higher acidity, the primary reason H increases with acidity is an increase in the solubility of molecular (i.e., neutral) ethanol.
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Affiliation(s)
- Rebecca R Michelsen
- Atmospheric Chemistry and Dynamics Branch, NASA Ames Research Center, Moffett Field, California 94035-1000, USA
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33
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Liu J, Drummond JR, Jones DBA, Cao Z, Bremer H, Kar J, Zou J, Nichitiu F, Gille JC. Large horizontal gradients in atmospheric CO at the synoptic scale as seen by spaceborne Measurements of Pollution in the Troposphere. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2005jd006076] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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34
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Lopez JP, Fridlind AM, Jost HJ, Loewenstein M, Ackerman AS, Campos TL, Weinstock EM, Sayres DS, Smith JB, Pittman JV, Hallar AG, Avallone LM, Davis SM, Herman RL. CO signatures in subtropical convective clouds and anvils during CRYSTAL-FACE: An analysis of convective transport and entrainment using observations and a cloud-resolving model. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2005jd006104] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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35
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Stenchikov G, Pickering K, DeCaria A, Tao WK, Scala J, Ott L, Bartels D, Matejka T. Simulation of the fine structure of the 12 July 1996 Stratosphere-Troposphere Experiment: Radiation, Aerosols and Ozone (STERAO-A) storm accounting for effects of terrain and interaction with mesoscale flow. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2004jd005582] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Georgiy Stenchikov
- Department of Environmental Sciences; Rutgers University; New Brunswick New Jersey USA
| | - Kenneth Pickering
- Department of Meteorology; University of Maryland; College Park Maryland USA
| | - Alex DeCaria
- Department of Meteorology; University of Maryland; College Park Maryland USA
| | - W.-K. Tao
- NASA Goddard Space Flight Center; Greenbelt Maryland USA
| | - John Scala
- Department of Earth Sciences; Millersville University; Millersville Pennsylvania USA
| | - Lesley Ott
- Department of Meteorology; University of Maryland; College Park Maryland USA
| | - Diana Bartels
- National Severe Storms Laboratory; NOAA, NCAR; Boulder Colorado USA
| | - Thomas Matejka
- National Severe Storms Laboratory; NOAA, NCAR; Boulder Colorado USA
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36
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DeCaria AJ, Pickering KE, Stenchikov GL, Ott LE. Lightning-generated NOXand its impact on tropospheric ozone production: A three-dimensional modeling study of a Stratosphere-Troposphere Experiment: Radiation, Aerosols and Ozone (STERAO-A) thunderstorm. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2004jd005556] [Citation(s) in RCA: 146] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Alex J. DeCaria
- Department of Meteorology; University of Maryland; College Park Maryland USA
| | | | - Georgiy L. Stenchikov
- Department of Environmental Sciences; Rutgers University; New Brunswick New Jersey USA
| | - Lesley E. Ott
- Department of Meteorology; University of Maryland; College Park Maryland USA
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37
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Shi GQ, Dropinski JF, McKeever BM, Xu S, Becker JW, Berger JP, MacNaul KL, Elbrecht A, Zhou G, Doebber TW, Wang P, Chao YS, Forrest M, Heck JV, Moller DE, Jones AB. Design and Synthesis of α-Aryloxyphenylacetic Acid Derivatives: A Novel Class of PPARα/γ Dual Agonists with Potent Antihyperglycemic and Lipid Modulating Activity. J Med Chem 2005; 48:4457-68. [PMID: 15974597 DOI: 10.1021/jm0502135] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The synthesis and structure-activity relationships of novel series of alpha-aryloxyphenylacetic acids as PPARalpha/gamma dual agonists are reported. The initial search for surrogates of the ester group in the screen lead led first to the optimization of a subseries with a ketone moiety. Further efforts to modify the ketone subseries led to the design and synthesis of two new subseries containing fused heterocyclic ring systems. All these analogues were characterized by their "super" PPARalpha agonist activity and weak or partial agonist activity on PPARgamma in PPAR-GAL4 transactivation assays despite their similar binding affinities for both receptors. The cocrystal structures of compounds 7 and rosiglitazone with PPARgamma-LBD were compared, and significant differences were found in their interactions with the receptor. Select analogues in each subseries were further evaluated for in vivo efficacy. They all showed excellent anti-hyperglycemic efficacy in a db/db mouse model and hypolipidemic activity in hamster and dog models without provoking the typical PPARgamma-associated side effects in the rat tolerability assay.
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Affiliation(s)
- Guo Q Shi
- Departments of Medicinal Chemistry, Merck Research Laboratories, P.O Box 2000, Rahway, New Jersey 07065-0900, USA.
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38
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Mullendore GL, Durran DR, Holton JR. Cross-tropopause tracer transport in midlatitude convection. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2004jd005059] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- G. L. Mullendore
- Department of Atmospheric Sciences; University of Washington; Seattle Washington USA
| | - D. R. Durran
- Department of Atmospheric Sciences; University of Washington; Seattle Washington USA
| | - J. R. Holton
- Department of Atmospheric Sciences; University of Washington; Seattle Washington USA
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39
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Hess PG. A comparison of two paradigms: The relative global roles of moist convective versus nonconvective transport. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2004jd005456] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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40
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Jung E. A study on the effects of convective transport on regional-scale Asian dust storms in 2002. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2005jd005808] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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41
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Huntrieser H. Intercontinental air pollution transport from North America to Europe: Experimental evidence from airborne measurements and surface observations. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2004jd005045] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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42
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Li Q. North American pollution outflow and the trapping of convectively lifted pollution by upper-level anticyclone. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2004jd005039] [Citation(s) in RCA: 142] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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43
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Wang C. A modeling study of the response of tropical deep convection to the increase of cloud condensation nuclei concentration: 2. Radiation and tropospheric chemistry. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2005jd005829] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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44
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Oshima N, Koike M, Nakamura H, Kondo Y, Takegawa N, Miyazaki Y, Blake DR, Shirai T, Kita K, Kawakami S, Ogawa T. Asian chemical outflow to the Pacific in late spring observed during the PEACE-B aircraft mission. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2004jd004976] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- N. Oshima
- Department of Earth and Planetary Science, Graduate School of Science; University of Tokyo; Tokyo Japan
| | - M. Koike
- Department of Earth and Planetary Science, Graduate School of Science; University of Tokyo; Tokyo Japan
| | - H. Nakamura
- Department of Earth and Planetary Science, Graduate School of Science; University of Tokyo; Tokyo Japan
| | - Y. Kondo
- Research Center for Advanced Science and Technology; University of Tokyo; Tokyo Japan
| | - N. Takegawa
- Research Center for Advanced Science and Technology; University of Tokyo; Tokyo Japan
| | - Y. Miyazaki
- Research Center for Advanced Science and Technology; University of Tokyo; Tokyo Japan
| | - D. R. Blake
- Department of Chemistry; University of California; Irvine California USA
| | - T. Shirai
- Earth Observation Research and Application Center; Japan Aerospace Exploration Agency; Tokyo Japan
| | - K. Kita
- Department of Environmental Sciences, Faculty of Science; Ibaraki University; Ibaraki Japan
| | - S. Kawakami
- Earth Observation Research and Application Center; Japan Aerospace Exploration Agency; Tokyo Japan
| | - T. Ogawa
- Earth Observation Research and Application Center; Japan Aerospace Exploration Agency; Tokyo Japan
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45
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Markwalder JA, Arnone MR, Benfield PA, Boisclair M, Burton CR, Chang CH, Cox SS, Czerniak PM, Dean CL, Doleniak D, Grafstrom R, Harrison BA, Kaltenbach RF, Nugiel DA, Rossi KA, Sherk SR, Sisk LM, Stouten P, Trainor GL, Worland P, Seitz SP. Synthesis and Biological Evaluation of 1-Aryl-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-4-one Inhibitors of Cyclin-Dependent Kinases. J Med Chem 2004; 47:5894-911. [PMID: 15537345 DOI: 10.1021/jm020455u] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Using a high-throughput screening strategy, a series of 1-aryl-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-4-ones was identified that inhibit the cyclin-dependent kinase (CDK) 4/cyclin D1 complex-mediated phosphorylation of a protein substrate with IC(50)s in the low micromolar range. On the basis of preliminary structure-activity relationships (SAR), a model was proposed in which these inhibitors occupy the ATP-binding site of the enzyme, forming critical hydrogen bonds to the same residue (Val96) to which the amino group in ATP is presumed to bind. X-ray diffraction studies on a later derivative bound to CDK2 support this binding mode. Iterative cycles of synthesis and screening lead to a novel series of potent, CDK2-selective 6-(arylmethyl)pyrazolopyrimidinones. Placement of a hydrogen-bond donor in the meta-position on the 6-arylmethyl group resulted in approximately 100-fold increases in CDK4 affinity, giving ligands that were equipotent inhibitors of CDK4 and CDK2. These compounds exhibit antiproliferative effects in the NCI HCT116 and other cell lines. The potency of these antiproliferative effects is enhanced in anilide derivatives and translates into tumor growth inhibition in a mouse xenograft model.
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Affiliation(s)
- Jay A Markwalder
- Bristol-Myers Squibb Pharmaceutical Research Institute, Princeton, New Jersey 08543-4000, USA.
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46
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Park RJ. Global simulation of tropospheric ozone using the University of Maryland Chemical Transport Model (UMD-CTM): 2. Regional transport and chemistry over the central United States using a stretched grid. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jd004269] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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47
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Kittaka C. A three-dimensional regional modeling study of the impact of clouds on sulfate distributions during TRACE-P. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jd004353] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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48
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49
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Ridley B. Florida thunderstorms: A faucet of reactive nitrogen to the upper troposphere. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2004jd004769] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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50
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Crawford J, Olson J, Davis D, Chen G, Barrick J, Shetter R, Lefer B, Jordan C, Anderson B, Clarke A, Sachse G, Blake D, Singh H, Sandolm S, Tan D, Kondo Y, Avery M, Flocke F, Eisele F, Mauldin L, Zondlo M, Brune W, Harder H, Martinez M, Talbot R, Bandy A, Thornton D. Clouds and trace gas distributions during TRACE-P. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd003177] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- J. Crawford
- NASA Langley Research Center; Hampton Virginia USA
| | - J. Olson
- NASA Langley Research Center; Hampton Virginia USA
| | - D. Davis
- School of Earth and Atmospheric Sciences; Georgia Institute of Technology; Atlanta Georgia USA
| | - G. Chen
- School of Earth and Atmospheric Sciences; Georgia Institute of Technology; Atlanta Georgia USA
| | - J. Barrick
- NASA Langley Research Center; Hampton Virginia USA
| | - R. Shetter
- Atmospheric Chemistry Division; National Center for Atmospheric Research; Boulder Colorado USA
| | - B. Lefer
- Atmospheric Chemistry Division; National Center for Atmospheric Research; Boulder Colorado USA
| | - C. Jordan
- NASA Langley Research Center; Hampton Virginia USA
| | - B. Anderson
- NASA Langley Research Center; Hampton Virginia USA
| | - A. Clarke
- School of Ocean and Earth Science and Technology; University of Hawaii; Honolulu Hawaii USA
| | - G. Sachse
- NASA Langley Research Center; Hampton Virginia USA
| | - D. Blake
- Department of Chemistry; University of California; Irvine California USA
| | - H. Singh
- NASA Ames Research Center; Moffett Field California USA
| | - S. Sandolm
- School of Earth and Atmospheric Sciences; Georgia Institute of Technology; Atlanta Georgia USA
| | - D. Tan
- School of Earth and Atmospheric Sciences; Georgia Institute of Technology; Atlanta Georgia USA
| | - Y. Kondo
- Research Center for Advanced Science and Technology; University of Tokyo; Tokyo Japan
| | - M. Avery
- NASA Langley Research Center; Hampton Virginia USA
| | - F. Flocke
- Atmospheric Chemistry Division; National Center for Atmospheric Research; Boulder Colorado USA
| | - F. Eisele
- Atmospheric Chemistry Division; National Center for Atmospheric Research; Boulder Colorado USA
| | - L. Mauldin
- Atmospheric Chemistry Division; National Center for Atmospheric Research; Boulder Colorado USA
| | - M. Zondlo
- Atmospheric Chemistry Division; National Center for Atmospheric Research; Boulder Colorado USA
| | - W. Brune
- Department of Meteorology; Pennsylvania State University; University Park Pennsylvania USA
| | - H. Harder
- Department of Meteorology; Pennsylvania State University; University Park Pennsylvania USA
| | - M. Martinez
- Department of Meteorology; Pennsylvania State University; University Park Pennsylvania USA
| | - R. Talbot
- Institute for the Study of Earth, Oceans, and Space; University of New Hampshire; Durham New Hampshire USA
| | - A. Bandy
- Department of Chemistry; Drexel University; Philadelphia Pennsylvania USA
| | - D. Thornton
- Department of Chemistry; Drexel University; Philadelphia Pennsylvania USA
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