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Conger E, Dziobak M, McCabe EJB, Curtin T, Gaur A, Wells RS, Weinstein JE, Hart LB. An analysis of suspected microplastics in the muscle and gastrointestinal tissues of fish from Sarasota Bay, FL: exposure and implications for apex predators and seafood consumers. ENVIRONMENTS 2024; 11:185. [PMID: 39391169 PMCID: PMC11466323 DOI: 10.3390/environments11090185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/12/2024]
Abstract
Microplastics have been found in the gastrointestinal (GI) fluid of bottlenose dolphins (Tursiops truncatus), inhabiting Sarasota Bay, FL, suggesting exposure by ingestion, possibly via contaminated fish. To better understand the potential for trophic transfer, muscle and GI tissues from 11 species of dolphin prey fish collected from Sarasota Bay were screened for microplastics (particles <5 mm diameter). Suspected microplastics were found in 82% of muscle samples (n=89), and 97% of GI samples (n=86). Particle abundance and shapes varied by species (p<0.05) and foraging habit (omnivore vs. carnivore, p<0.05). Pinfish (Lagodon rhomboides) had the highest particle abundance for both tissue types (muscle: 0.38 particles/g; GI: 15.20 particles/g), which has implications for dolphins as they are a common prey item. Findings from this study support research demonstrating the ubiquity of estuarine plastic contamination and underscore the risks of ingestion exposure for wildlife and potentially seafood consumers.
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Hart LB, Dziobak M, Wells RS, McCabe EB, Conger E, Curtin T, Knight M, Weinstein J. Plastic, It's What's for Dinner: A Preliminary Comparison of Ingested Particles in Bottlenose Dolphins and Their Prey. OCEANS (BASEL, SWITZERLAND) 2023; 4:409-422. [PMID: 38766537 PMCID: PMC11101200 DOI: 10.3390/oceans4040028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Microplastic ingestion was reported for common bottlenose dolphins (Tursiops truncatus) inhabiting Sarasota Bay, FL, USA, a community that also has prevalent exposure to plasticizers (i.e., phthalates) at concentrations higher than human reference populations. Exposure sources are currently unknown, but plastic-contaminated prey could be a vector. To explore the potential for trophic exposure, prey fish muscle and gastrointestinal tract (GIT) tissues and contents were screened for suspected microplastics, and particle properties (e.g., color, shape, surface texture) were compared with those observed in gastric samples from free-ranging dolphins. Twenty-nine fish across four species (hardhead catfish, Ariopsis felis; pigfish, Orthopristis chrysoptera; pinfish, Lagodon rhomboides; and Gulf toadfish, Opsanus beta) were collected from Sarasota Bay during September 2022. Overall, 97% of fish (n = 28) had suspected microplastics, and GIT abundance was higher than muscle. Fish and dolphin samples contained fibers and films; however, foams were common in dolphin samples and not observed in fish. Suspected tire wear particles (TWPs) were not in dolphin samples, but 23.1% and 32.0% of fish muscle and GIT samples, respectively, contained at least one suspected TWP. While some similarities in particles were shared between dolphins and fish, small sample sizes and incongruent findings for foams and TWPs suggest further investigation is warranted to understand trophic transfer potential.
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O’Driscoll Á, Leahy J, Curtin T. The influence of metal selection on catalyst activity for the liquid phase hydrogenation of furfural to furfuryl alcohol. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.06.013] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Higgins D, Curtin T, Pawlett M, Courtney R. The potential for constructed wetlands to treat alkaline bauxite-residue leachate: Phragmites australis growth. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:24305-24315. [PMID: 27655613 DOI: 10.1007/s11356-016-7702-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 09/12/2016] [Indexed: 06/06/2023]
Abstract
High alkalinity (pH > 12) of bauxite-residue leachates presents challenges for the long-term storage and managements of the residue. Recent evidence has highlighted the potential for constructed wetlands to effectively buffer the alkalinity, but there is limited evidence on the potential for wetland plants to establish and grow in soils inundated with residue leachate. A pot-based trial was conducted to investigate the potential for Phragmites australis to establish and grow in substrate treated with residue leachate over a pH range of 8.6-11.1. The trial ran for 3 months, after which plant growth and biomass were determined. Concentrations of soluble and exchangeable trace elements in the soil substrate and also in the aboveground and belowground biomass were determined. Residue leachate pH did not affect plant biomass or microbial biomass. With the exception of Na, there was no effect on exchangeable trace elements in the substrate; however, increases in soluble metals (As, Cd and Na) were observed with increasing leachate concentration. Furthermore, increases in Al, As and V were observed in belowground biomass and for Cd and Cr in aboveground biomass. Concentrations within the vegetation biomass were less than critical phytotoxic levels. Results demonstrate the ability for P. australis to grow in bauxite-residue leachate-inundated growth media without adverse effects.
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O'Brien J, Curtin T, O'Dwyer T. Adsorption of Aniline from Aqueous Solution Using Copper-Exchanged ZSM-5 and Unmodified H-ZSM-5. ADSORPT SCI TECHNOL 2016. [DOI: 10.1260/0263617043026488] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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O'Brien J, Curtin T, O'Dwyer T. An Investigation into the Adsorption of Aniline from Aqueous Solution Using H-Beta Zeolites and Copper-Exchanged Beta Zeolites. ADSORPT SCI TECHNOL 2016. [DOI: 10.1260/0263617054353582] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Zeolite beta, a large-pore zeolite, was investigated in this study with a view to examining it as a potential adsorbent for the removal of aniline from aqueous solutions. Two different metal-loaded zeolites were prepared by exchanging H-beta zeolite (SiO2/Al2O3 = 75:1) with copper. The influence of exchanged copper on the uptake level was assessed. The effect of varying the silica-to-alumina ratio of the H-beta zeolite on the aniline uptake level was also examined, using three different H-beta zeolites with ratios of 25:1, 75:1 and 150:1 as adsorbents. The sorption experiments indicated an uptake level of ca. 110–120 mg/g for each zeolite and this level was also adsorbed by the copper-modified H-beta zeolites (SiO2/Al2O3 = 75:1). In all cases, the adsorption process followed the Langmuir model for adsorption and the level of aniline adsorbed was largely unaffected by a change in temperature or the presence of extra framework copper. The stability of the exchanged copper on these zeolites was then examined by measuring the quantity of copper leached from each zeolite into solution as a function of pH. Minimum copper leaching was observed in the pH range 5–11. This provided a stable pH working range for the adsorbent materials.
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Smart D, Curtin T, O'Dwyer T. Influence of Cation-Exchanged Copper on the Adsorption of Phenol onto Zeolite Beta. ADSORPT SCI TECHNOL 2014. [DOI: 10.1260/0263-6174.32.8.635] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Shanahan A, Good M, Duignan A, Curtin T, More SJ. Tuberculosis in goats on a farm in Ireland: epidemiological investigation and control. Vet Rec 2011; 168:485. [PMID: 21527475 DOI: 10.1136/vr.c6880] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This paper describes an outbreak of tuberculosis (TB) caused by Mycobacterium bovis in a dairy goat herd on a farm in Ireland, where 66.3 per cent of the herd tested positive to the single intradermal comparative tuberculin test (SICTT) at initial detection. An epidemiological investigation was conducted to determine the origin of the outbreak, considering issues such as animal movements and herd management practices. Infection was introduced with a consignment of goats, as determined by the variable number tandem repeat profile. Infection was eradicated using a test and cull programme involving the SICTT, the interferon-γ assay and a multiplex immunoassay (Enferplex TB).
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Lenihan S, Curtin T. The selective oxidation of ammonia using copper-based catalysts: The effects of water. Catal Today 2009. [DOI: 10.1016/j.cattod.2008.06.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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O'Brien J, O'Dwyer TF, Curtin T. A novel process for the removal of aniline from wastewaters. JOURNAL OF HAZARDOUS MATERIALS 2008; 159:476-482. [PMID: 18395337 DOI: 10.1016/j.jhazmat.2008.02.064] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2007] [Revised: 02/13/2008] [Accepted: 02/14/2008] [Indexed: 05/26/2023]
Abstract
The aim of this research was to develop a solid regenerable catalytic adsorbent capable of removing aniline from aqueous solutions. A H-Beta zeolite was first loaded with copper in an ion-exchange process to enhance its catalytic activity. Experimental results indicated an aniline adsorption level of approximately 106-114 mg g(-1) for each of the unmodified H-Beta, the 0.5% (w/w) Cu-Beta or the 1.4 % (w/w) Cu-Beta zeolites. The adsorption processes followed the Langmuir model and the level of aniline adsorbed was largely unaffected by a change in temperature. Assessment of the aqueous stability of the exchanged copper on the Beta zeolites indicated minimum copper leaching in the range pH 5-11 thus providing a stable working pH range for both the 0.5% (w/w) and 1.4% (w/w) Cu-Beta adsorbent materials. Catalytic oxidation studies on the adsorbed aniline indicated that the presence of copper in the zeolites significantly enhanced the degradation of aniline to predominantly carbon dioxide, water and nitrogen. Five successive adsorption/catalytic oxidation cycles did not diminish the aniline adsorption capacity of the copper loaded zeolites but there was a small loss in the efficacy of the catalytic oxidation of the adsorbed aniline by the end of the 5th cycle.
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O'Brien J, Curtin T, O'Dwyer T. Removal of Aniline from Waste Streams Using a Combined Adsorption and Catalytic Oxidation Approach. ADSORPT SCI TECHNOL 2008. [DOI: 10.1260/026361708787548800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Curtin T, Fitzgerald G, Reilly J. Production of phoenicine on synthetic media: Penicillium phoeniceum Van Beyma. 2. Penicillium rubrum Grasberger-Stoll. Biochem J 2006; 34:1605-10. [PMID: 16747296 PMCID: PMC1265456 DOI: 10.1042/bj0341605] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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O'Mahony L, Henry J, Sutton D, Curtin T, Hodnett B. Time-ResolvedIn SituX-ray Diffraction in the Crystallization of VOHPO4 0.5H2O. Catal Letters 2003. [DOI: 10.1023/b:catl.0000004114.11321.8f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Rust G, Curtin T. Diabetes care in community health centers: a reasonable standard of comparison? Am J Public Health 2001; 91:318-9. [PMID: 11211650 PMCID: PMC1446523 DOI: 10.2105/ajph.91.2.318] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Mueller KJ, Curtin T, Hawkins D, Williams DM, Lefkowitz B. Building a research agenda: responding to the needs of Community and Migrant Health Centers. J Rural Health 1999; 14:289-94. [PMID: 10349278 DOI: 10.1111/j.1748-0361.1998.tb00634.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This article summarizes the results of an invitational conference designed to establish a research agenda for collaborative projects involving university-based health services researchers and staff (administrative and clinical) from Community and Migrant Health Centers (C/MHCs). More research related to C/MHCs needs to be developed, preferably by collaborative teams of researchers and C/MHC personnel. Specific research ideas are summarized, and five more detailed research proposals are presented. This is an especially important area that needs work, given the changes taking place in health care finance and the impacts of those changes on C/MHCs.
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Curtin T, Grange P, Delmon B. The effect of pretreatments on different copper exchanged ZSM-5 for the decomposition of NO. Catal Today 1997. [DOI: 10.1016/s0920-5861(96)00196-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Curtin T, Mcmonagle J, Ruwet M, Hodnett B. Deactivation and Regeneration of Alumina Catalysts for the Rearrangement of Cyclohexanone Oxime into Caprolactam. J Catal 1993. [DOI: 10.1006/jcat.1993.1199] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Curtin T, Hodnett B. Reactions of ketoximes and aldoximes over solid acid catalysts. ACTA ACUST UNITED AC 1993. [DOI: 10.1016/s0167-2991(08)63363-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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Curtin T, McMonagle J, Hodnett B. Beckmann Rearrangement Over Solid Acid Catalysts. STUDIES IN SURFACE SCIENCE AND CATALYSIS 1993. [DOI: 10.1016/s0167-2991(08)64361-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Curtin T, Brooks AP, Roberts JA. Cardiorespiratory distress after sumatriptan given by injection. BMJ (CLINICAL RESEARCH ED.) 1992; 305:713-4; author reply 714. [PMID: 1327368 PMCID: PMC1882941 DOI: 10.1136/bmj.305.6855.713-d] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Curtin T, Leitner LM. Organization scores of self and other on the repertory grid. THE BRITISH JOURNAL OF MEDICAL PSYCHOLOGY 1992; 65 ( Pt 1):39-45. [PMID: 1571305 DOI: 10.1111/j.2044-8341.1992.tb01682.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Traditional repertory grid studies of construct system organization have assumed that measures of organization derived from the construing of others are equivalent to measures derived from the construing of self. They also have assumed that constructs generated around the construing of others can be used to construe the self. Finally, they have assumed that the self is a unitary concept that does not vary across contexts. This study provides some empirical data on these assumptions by comparing the construction of self and others on repertory grids. Only moderate correlations between the organization of self and others were found on grid measures of construct independence and construct integration. Higher relationships were found on measures of construct system meaningfulness and the constructed use of categories. The implications of these data for repertory grid research are discussed.
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Pellegrino ED, Harvey JC, Morland EW, Wessell ML, Curtin T. Opening doors to the needy. An archdiocese coordinates a physician referral network. HEALTH PROGRESS (SAINT LOUIS, MO.) 1991; 72:66-9. [PMID: 10109230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
The availability and accessibility of healthcare to those unable to pay is deteriorating rapidly. One place this is clearly apparent is in our nation's capital, where extremes of poverty and wealth abound. In an effort to improve access to healthcare for the poor, homeless, and medically indigent in the Washington, DC, area, the Washington Archdiocese Health Care Network (AHCN) was formed in 1984 under the leadership of Card. James A. Hickey. The AHCN is a coordinating agency that refers people in need to physicians, physical therapy and rehabilitation services, and dentists who have agreed to volunteer their services to this vulnerable population. The formation, operation, and continuation of the AHCN are performed by five members of one steering committee on behalf of the hundreds of volunteers who make it work daily.
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Curtin T, Mulhern B. Foetal warfarin syndrome. IRISH MEDICAL JOURNAL 1980; 73:393-4. [PMID: 7429791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Curtin T. JCAH standards move toward regulation. HOSPITAL PROGRESS 1977; 58:6. [PMID: 924416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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