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439 results on '"Campos, T"'

6. THE CONVECTIVE TRANSPORT OF ACTIVE SPECIES IN THE TROPICS (CONTRAST) EXPERIMENT

Author

Pan, L. L., Atlas, E. L., Salawitch, R. J., Honomichl, S. B., Bresch, J. F., Randel, W. J., Apel, E. C., Hornbrook, R. S., Weinheimer, A. J., Anderson, D. C., Andrews, S. J., Baidar, S., Beaton, S. P., Campos, T. L., Carpenter, L. J., Chen, D., Dix, B., Donets, V., Hall, S. R., Hanisco, T. F., Homeyer, C. R., Huey, L. G., Jensen, J. B., Kaser, L., Kinnison, D. E., Koenig, T. K., Lamarque, J.-F., Liu, C., Luo, J., Luo, Z. J., Montzka, D. D., Nicely, J. M., Pierce, R. B., Riemer, D. D., Robinson, T., Romashkin, P., Saiz-Lopez, A., Schauffler, S., Shieh, O., Stell, M. H., Ullmann, K., Vaughan, G., Volkamer, R., and Wolfe, G.

Published
2017

7. The Indian Ocean Experiment: Widespread Air Pollution from South and Southeast Asia

Author

Lelieveld, J., Crutzen, P. J., Ramanathan, V., Andreae, M. O., Brenninkmeijer, C. A. M., Campos, T., Cass, G. R., Dickerson, R. R., Fischer, H., de Gouw, J. A., Hansel, A., Jefferson, A., Kley, D., de Laat, A. T. J., Lal, S., Lawrence, M. G., Lobert, J. M., Mayol-Bracero, O. L., Mitra, A. P., Novakov, T., Oltmans, S. J., Prather, K. A., Reiner, T., Rodhe, H., Scheeren, H. A., Sikka, D., and Williams, J.

Published
2001

8. The genetic landscape of mitochondrial diseases in the next-generation sequencing era: a Portuguese cohort study.

Author

Nogueira, C., Pereira, C., Silva, L., Laranjeira, Mateus, Lopes, A., Neiva, R., Rodrigues, E., Campos, T., Martins, E., Bandeira, A., Coelho, M., Magalhães, M., Damásio, J., Gaspar, A., Janeiro, P., Gomes, A. Levy, Ferreira, A. C., Jacinto, S., Vieira, J. P., and Diogo, L.

Subjects
NUCLEOTIDE sequencing, MITOCHONDRIAL DNA, NUCLEAR DNA, MITOCHONDRIA, CHILD patients, LEBER'S hereditary optic atrophy
Abstract

Introduction: Rare disorders that are genetically and clinically heterogeneous, such as mitochondrial diseases (MDs), have a challenging diagnosis. Nuclear genes codify most proteins involved in mitochondrial biogenesis, despite all mitochondria having their own DNA. The development of next-generation sequencing (NGS) technologies has revolutionized the understanding of many genes involved in the pathogenesis of MDs. In this new genetic era, using the NGS approach, we aimed to identify the genetic etiology for a suspected MD in a cohort of 450 Portuguese patients. Methods: We examined 450 patients using a combined NGS strategy, starting with the analysis of a targeted mitochondrial panel of 213 nuclear genes, and then proceeding to analyze the whole mitochondrial DNA. Results and Discussion: In this study, we identified disease-related variants in 134 (30%) analyzed patients, 88 with nuclear DNA (nDNA) and 46 with mitochondrial DNA (mtDNA) variants, most of them being pediatric patients (66%), of which 77% were identified in nDNA and 23% in mtDNA. The molecular analysis of this cohort revealed 72 already described pathogenic and 20 novel, probably pathogenic, variants, as well as 62 variants of unknown significance. For this cohort of patients with suspected MDs, the use of a customized gene panel provided a molecular diagnosis in a timely and cost-effective manner. Patients who cannot be diagnosed after this initial approach will be further selected for whole-exome sequencing. Conclusion: As a national laboratory for the study and research of MDs, we demonstrated the power of NGS to achieve a molecular etiology, expanding the mutational spectrum and proposing accurate genetic counseling in this group of heterogeneous diseases without therapeutic options. [ABSTRACT FROM AUTHOR]

Published
2024
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10. Synergistic Effect of Incorporation of BG 45S5 and Silver Nanoparticles on β-TCP Scaffolds: Structural Characterization and Evaluation of Antimicrobial Activity and Biocompatibility

Author

Spirandeli, B. R., Martins, E. F., Dona, L. R. M., Ribas, R. G., Campos, T. M. B., Esposito, E., Thim, G. P., Tada, D. B., and Trichês, E. S.

Subjects
Scaffolds, silver nanoparticles, antimicrobial activity, sol-gel, cytotoxicity, 45S5 bioactive glass, β-TCP
Abstract

Bacterial infections after implant surgical procedures are a complication observed in many surgeries to treat bone injuries or diseases. Bacteria can attach to the surface of the implant producing biofilms, and if treatment with antibiotics does not work, further surgery is necessary to remove the infected implant. Among the biomaterials for bone implants, bioceramics based on calcium phosphates (CaPs) such as β-TCP stand out, due to their chemical similarity with bone and high bioresorbability. β-TCP has the characteristic of easily accommodating in its crystalline structure reasonable amounts of doping elements, such as monovalent and trivalent ions, which makes it an efficient transporter of drugs, molecules, and therapeutic ions The objective of this work was the incorporation of bioactive glass (BG 45S5) via sol-gel and silver nanoparticles (Ag-NPs) in β-TCP scaffolds, aiming to confer antimicrobial activity to the scaffolds, without prejudice to biocompatibility. XRD and FT-IR analysis indicated structural changes after the incorporation of BG 45S5 and Ag-NPs in β-TCP scaffolds, and these compounds induced the partial transformation of the β-TCP phase into α-TCP phase and the formation of sodium-calcium silicates and silver silicates. The FT-IR spectra showed characteristic bands of α-TCP after incorporation, in addition to the predominant bands of β-TCP. Biocompatibility after incorporation of BG 45S5 was improved, with a significant increase in cell viability. After the incorporation of Ag-NPs, cell viability was maintained at an acceptable level, no cytotoxic behavior was observed, and the scaffolds showed antibacterial and antifungal activity. The results indicate that BG 45S5 and the Ag-NPs incorporated showed a synergistic behavior, conferring antimicrobial activity to the scaffolds without compromising biocompatibility, showing great potential for applicability in tissue engineering.

Published
2023

11. The Swiss Pathogen Surveillance Platform - towards a nation-wide One Health data exchange platform for bacterial, viral and fungal genomics and associated metadata

Author

Neves, A., Walther, D., Martin-Campos, T., Barbie, V., Bertelli, C., Blanc, D., Bouchet, G., Erard, F., Greub, G., Hirsch, H.H., Huber, M., Kaiser, L., Leib, S.L., Leuzinger, K., Lazarevic, V., Mäusezahl, M., Molina, J., Neher, R.A., Perreten, V., Ramette, A., Roloff, T., Schrenzel, J., Seth-Smith, HMB, Stephan, R., Terumalai, D., Wegner, F., and Egli, A.

Subjects
Humans, Switzerland/epidemiology, Genome, Bacterial, Metadata, One Health, Genomics/methods, antibiotic resistance, bacteria, bioinformatics, database, epidemiology, fungi, molecular surveillance, outbreaks, research, sequencing, typing, virulence, virus
Abstract

The Swiss Pathogen Surveillance Platform (SPSP) is a shared secure surveillance platform between human and veterinary medicine, to also include environmental and foodborne isolates. It enables rapid and detailed transmission monitoring and outbreak surveillance of pathogens using whole genome sequencing data and associated metadata. It features controlled data access, complex dynamic queries, dedicated dashboards and automated data sharing with international repositories, providing actionable results for public health and the vision to improve societal well-being and health.

Published
2023

12. Influence of straight versus angulated screw channel titanium bases on failure loads of two‐piece ceramic and titanium implants restored with screw‐retained monolithic crowns: An in‐vitro study.

Author

Helal, E., Gierthmuehlen, P. C., Bonfante, E. A., Campos, T. M. B., Prott, L. S., Langner, R., and Spitznagel, F. A.

Subjects
BENDING moment, TITANIUM, FAILURE analysis, DENTAL crowns, MATERIAL plasticity
Abstract

Objective: To analyze the influence of titanium‐base (straight [SSC]/angulated‐screw‐channel [ASC]) on failure‐loads and bending‐moments of two‐piece ceramic and titanium–zirconium implants restored with monolithic‐zirconia crowns after fatigue. Materials and Methods: Thirty‐two anterior monolithic‐screw‐retained zirconia crowns were divided into four groups (n = 8/group) according to the factors: (1) type of implant material: two‐piece titanium–zirconium implant (Ti–Zr; control‐group) versus two‐piece ceramic implant (CI; test‐group) and (2) type of titanium‐base: SSC (0° angle) versus ASC (25°). An intact implant was used for field emission gun‐scanning electronic microscopy (FEG‐SEM) characterization and Raman spectroscopy for phase analyses and residual stress quantification. All samples were exposed to fatigue with thermodynamic loading (1.2‐million‐cycles, 49 N, 1.6 Hz, 5–55°C) at a 30° angle. Surviving specimens were loaded until failure (SLF) and bending moments were recorded. Failed samples were examined using light microscope and SEM. Statistical analyses included ANOVA and Mann–Whitney U‐test. Results: Raman‐spectroscopy revealed the presence of residual compressive stresses. FEG‐SEM revealed a roughened surface between threads and polished surface at the cervical‐collar of the ceramic implant. All samples survived fatigue and were free of complications. Mean bending‐moments (±SD) were: Ti‐Zr‐0: 241 ± 45 N cm, Ti‐Zr‐25: 303 ± 86 N cm, CI‐0: 326 ± 58 N cm, CI‐25: 434 ± 71 N cm. Titanium‐base and implant‐material had significant effects in favor of ASC titanium bases (p =.001) and ceramic‐implants (p <.001). Failure analysis after SLF revealed severe fractures in ceramic implants, whereas titanium implants were restricted to plastic deformation. Conclusions: Ceramic and titanium implants exhibited high reliability after fatigue, with no failures. From a mechanical perspective, titanium bases with ASC can be recommended for both ceramic and titanium implants and are safe for clinical application. [ABSTRACT FROM AUTHOR]

Published
2023
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13. Effect of Y2O3-addition on the crystallographic and mechanical properties of the Ce-TZP/Al2O3 composite.

Author

Gall, C. C., Alves, M. F. R. P., Campos, T. M. B., dos Santos, C., Gomes, P. L., Barbosa, G. R., and Lima, E. S.

Subjects
SPECIFIC gravity, RIETVELD refinement, VICKERS hardness, FRACTURE toughness, RAMAN spectroscopy, SCANNING electron microscopy
Abstract

The effect of adding different Y2O3 contents on the physical and mechanical properties of Ce-TZP/Al2O3 composites was investigated. Ce-TZP/Al2O3 powder blends containing 1~10 wt% Y2O3 were compacted at 100 MPa-30 s and sintered at 1500 °C-2 h or 1600 °C-2 h. The materials were characterized by X-ray diffraction and scanning electron microscopy, Raman spectroscopy, relative density, and the mechanical properties of Vickers hardness and fracture toughness. After sintering, the relative density of the sintered samples varied between 92.7% and 96.3%. Furthermore, the addition of Y2O3 resulted in an increase in the amount of cubic zirconia (c-ZrO2) and an increase in grain size in relation to the sample without the addition of Y2O3. With the increase of Y2O3 in the composition and consequent increase in the cubic ZrO2 phase content, although the hardness values did not present statistically significant variations, indicating average value of 12 GPa, a decrease in fracture toughness values was observed (10.0~5.5 MPa.m1/2) as a direct function of the reduction in the population of tetragonal zirconia grains, responsible for the toughening mechanism by phase transformation in these composites. [ABSTRACT FROM AUTHOR]

Published
2023
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14. Anthropogenic Control over Wintertime Oxidation of Atmospheric Pollutants

Author

Haskins, J. D, Lopez-Hilfiker, F. D, Lee, B. H, Shah, V, Wolfe, G. M, DiGangi, J, Fibiger, D, McDuffie, E. E, Veres, P, Schroder, J. C, Campuzano-Jost, P, Day, D. A, Jimenez, J. L, Weinheimer, A, Sparks, T, Cohen, R. C, Campos, T, Sullivan, A, Guo, H, Weber, R, Dibb, J, Greene, J, Fiddler, M, Bililign, S, Jaegle, L, Brown, S. S, and Thornton, J. A

Subjects
Environment Pollution
Abstract

Anthropogenic air pollutants such as nitrogen oxides (NO(x) = NO + NO(2)), sulfur dioxide (SO(2)), and volatile organic compounds (VOC), among others, are emitted to the atmosphere throughout the year from energy production and use, transportation, and agriculture. These primary pollutants lead to the formation of secondary pollutants such as fine particulate matter (PM(2.5)) and ozone (O(3)) and perturbations to the abundance and lifetimes of short-lived greenhouse gases. Free radical oxidation reactions driven by solar radiation govern the atmospheric lifetimes and transformations of most primary pollutants and thus their spatial distributions. During winter in the mid and high latitudes, where a large fraction of atmospheric pollutants are emitted globally, such photochemical oxidation is significantly slower. Using observations from a highly instrumented aircraft, we show that multi-phase reactions between gas-phase NO(x) reservoirs and aerosol particles, as well as VOC emissions from anthropogenic activities, lead to a suite of atypical radical precursors dominating the oxidizing capacity in polluted winter air, and thus, the distribution and fate of primary pollutants on a regional to global scale.

Published
2019
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15. Inequalities in screening policies and perioperative protection for patients with acute appendicitis during the pandemic: Subanalysis of the ACIE Appy study

Author

Pellino, G., Podda, M., Pata, F., Di Saverio, S., Ielpo, B., Caruso, R., Gravante, G., Orengia, A., Chowdary, A., Kulkarni, A., Kuvvetli, A., Navarro, A., Smith, A., Ibiricu, A. C., Nacion, A. J. D., Alsaleh, A., Alhazmi, A., Elmabri, A., Wani, A., Rencuzogullari, A., Lasarte, A. S., Rubio, A. V., Bavikatte, A., Kumar, A., Jamiri, A. -R., Padilla, A. M. A., Cacurri, A., de San Ildefonso, A., Porcu, A., Sartori, A., Rocca, A., Paz Yanez, A., Becaria, A., Solis-Pena, A., Sretenovic, A., Urbistondo, A., Bandin, A., Najar, A., De Luca, A., Boddy, A., Charalabopoulos, A., Tzivanakis, A., Amendola, A., de Velasco, A. R. -G., Yildirim, A. C., Frontali, A., Toure, A. O., Garcia-Granero, A., Martinez Roldan, A., Larrainzar, A. S., Ratnayake, A. S., Gonzalez-Ganso, A. M., Minaya-Bravo, A. M., Das, A., Bondurri, A., Costanzi, A., Lucchi, A., Mazzari, A., Musig, A., Peloso, A., Piano, A., Police, A., Mihailescu, A., Pouy, A., Romano, A., Iossa, A., Leonetti, A. C., Guariniello, A., Isaac, A., Bovi, A. P. D., Chessa, A., Tromba, A., Martinez, A. A., Brillantino, A., Caira, A., Castaldi, A., Ferronetti, A., Giuliani, A., Prestera, A., Ramos-De la Medina, A., Tarasconi, A., Tornambe, A., Picciariello, A., Ioannidis, A., Leppaniemi, A., Khan, A., Rashid, A., Perez-Sanchez, A. L. E., Mittal, A., Mitul, A. R., Mehraj, A., Laharwal, A., Dorisme, A., Marinis, A., Iqbal, A., Moncada, A., Braccio, B., Alkhafaji, B., de Andres Asenjo, B., Martin-Perez, B., De Simone, B., Perez, B. S., Creavin, B., Cali, B., Pascotto, B., Stubbs, B., Retes, B. Z., Jovanovic, B., Goh, B. K. P., Sensi, B., Biddau, C., Gazia, C., Vallicelli, C., Fagundes, C. A., Santacruz, C. C., Chirico, C., Diaz, C. J. G., Petrola, C., Rodriguez, C. S., Benitez, C. Y., Dammaro, C., Lo Faro, C., Reinke, C., Paez, C. D., Oliva, C., Paranjape, C., Thomas, C., Chia, C. F., Kong, C. K., De Lucia, C., Chao, C. O., Arcudi, C., Guerci, C., Chia, C., Parise, C., Folliero, C., Varela, C., Ferguson, D. M., Camacho, D., Popowich, D., Lima, D. S., Rega, D., Delogu, D., Zigiotto, D., Vinci, D., D'Antonio, D., Parini, D., Merlini, D. A., Zimmerman, D. D. E., Moro-Valdezate, D., Pertile, D., Giusti, D. M., Keller, D. S., Tarik, D., Kalivaci, D., Mazingi, D., Maldonado-Pintado, D. G., Sasia, D., Linardoutsos, D., Osilli, D., Murrone, D., Russello, D., Rodas, E., Roa, E. A. A., Ricciardi, E., Rosso, E., Saladino, E., Flores-Villalba, E., Ajs, E. R., Smith-Singares, E., Baili, E., Kouroumpas, E., Bourmpouteli, E., Douka, E., Martin-Perez, E., Guaitoli, E., Samadov, E., Francone, E., Vaterlini, E., Morales, E., Pena, E., Zhao, E., Del Pozo Andres, E., Benzoni, E., Erdas, E., Pinotti, E., Colas-Ruiz, E., Aytac, E., Laterza, E., Agastra, E., Foianini, E., Moscoso, E., Laviano, E., Marra, E., Cardamone, E., Licardie, E., Mpaili, E., Pinna, E., Varo, E., Navarro, F. M., Marino, F., Medas, F., Romano, F., Maraska, F., Saliu, F., Madrid, F., Rosa, F., Mastella, F., Gheza, F., Luvisetto, F., Alconchel, F., Vieira, F. M., Pareja, F., Agresta, F., Luna, F., Bonilla, F., Cordera, F., Burdio, F., Mendoza-Moreno, F., Flores, F. M., Aranda, F. P., Taylor, F., Ramos, F. L., Fernandes, F., Tropeano, F. P., Balestra, F., Bianco, F., Ceci, F., Colombo, F., Di Marzo, F., Ferrara, F., Lancellotti, F., Lazzarin, F., Litta, F., Martini, F., Pizza, F., Roscio, F., Virdis, F., Antona, F. B., Ramirez, F. C., Fernandez, F. M., Llinares, F. O., Quezada, F., Schlottmann, F., Herrera-Almario, G., Massaferro, G., Bislenghi, G., van Ramshorst, G., Gallo, G., Luglio, G., Bointas, G., Kampouroglou, G., Papadopoulos, G., Manrique, G. A., Calini, G., Nastri, G., Formisano, G., Galiffa, G., Palini, G. M., Colucci, G., Pagano, G., Vanni, G., Pattacini, G. C., De Paola, G., Lisi, G., Partida, G., Bellanova, G., De Nobili, G., Necchi, G. S., Sinibaldi, G., Tebala, G., Bagaglini, G., Izzo, G., Argenio, G., Brisinda, G., Candilio, G., Di Grezia, G., Esposito, G., Faillace, G., Frazzetta, G., La Gumina, G., Nigri, G., Romeo, G., Amatriain, G. C., Ortega, G., Martin-Martin, G., Stavrou, G. A., Gunadi, Ugon, G. A., Machain, G., Marcucci, G., Martinez-Mier, G., Machain, G. M., Nari, G., Calvo, H., Fathy, H., Hamilton, Ahmed, H., Faraj, H., Nava, H., Macias, H. O., Nikaj, H., Solano, H., Khan, H. A., Alarcon, H. S., Ebied, H., Giani, I., Ateca, I. V., Neri, I., San Roman, I. A., Fidoshev, I., Rodriguez, I. M., Negoi, I., Ortega, I., Bernescu, I., Russo, I. S., Rodriguez, I. V., Palomares, I., Baltazar, I., Torrejimeno, I. J., Jurado, I. M. C., Reccia, I., Hussain, I., Toledo, I. B., Mora-Guzman, I., al-Najami, I., Dogaru, I., Romic, I., Balciscueta, I., Kenington, J. C., Sagolsem, J., Jang, J. Y., Olivier, J., Lammel-Lindemann, J., Dziakova, J., Villavicencio, J. I. R., Salinas, J., Pejanovic, J., Parreira, J. G., Perez, J. R., Reyes, J. A. S., Luque, J. A. M., Mak, J., Rodriguez, J. S., Kok, J. H. H., Krook, J., Diaz-Elizondo, J. A., Castell, J., Garcia-Flores, J. E., Navalon, J. M. J., Rodrigues, J. M. S., Pinto, J. P., Gomez, J. T. C., Luque, J. B., del Olmo, J. C. M., Salamea, J. C., Olivier, J. F. C., Laina, J. L. B., Ordonez, J. M., Gutierrez, J., Abba, J., Sofi, J. A., Sherafgan, K., Sahnan, K., Yanaga, K., Beatson, K., Asim, L., Alvarez, L., Siragusa, L., Farber, L., Ong, L., Athanasios, L., Garcia-Bruna, L., De Martino, L., Ferrario, L., Giordano, L., Gordini, L., Pio, L., Ponchietti, L., Moletta, L., Curella, L., Poggi, L., Taglietti, L., Bonavina, L., Conti, L., Goffredi, L., Ruiz, L. A. G., Barrionuevo, L., Fregoso, L. E., Cabrera, L. F., Rodriguez, L. G., Grande, L., Osoria, L. G., Gonzalez, L. J. K., Sanchez-Guillen, L., Tallon-Aguilar, L., Tresierra, L., Giavarini, L., Hasabelnabi, M., Odovic, M., Uemura, M., Khan, M., Artiles-Armas, M., David, M., Di Martino, M., Spampinato, M. G., Ribeiro, M. A. F., Viola, M., Angrisani, M., Calussi, M., Cannistra, M., Catarci, M., Cereda, M., Conte, M., Giordano, M., Pellicciaro, M., Marino, M. V., Vaterlini, M. E., Jimenez, M. F., Lolli, M. G., Bellini, M. I., Lemma, M., Chiarello, M. M., Nicola, M., Arrigo, M., Mejia, M. C., Manrique, M. M., Rodriguez-Lopez, M., Serradilla-Martin, M., Lara, M. Z., Martinez, M., Bagnall, M., Peter, M., Lara, M. C., Gomez, M. J., Paniagua-Garcia-Senorans, M., Gonzalez, M. P., Rutegard, M., Salo, M., Franceschilli, M., Silveri, M., Veroux, M., Pezzulo, M., Nardi, M., Rottoli, M., Tolonen, M., Ciro, M. P., Zuluagua, M., Cannavo, M., Cervellera, M., Iacobone, M., Montuori, M., Dominguez, M. G., Bingol-Kologlu, M., Tahir, M., Lim, M., Wilson, M. S. J., Wilson, M., Campanelli, M., Bisaccia, M., De Rosa, M., Maruccia, M., Paterno, M., Pisano, M., Torre, M., Trevino, M., Zuolo, M., Bartolome, M. A. H., Farina, M., Pera, M., Calvo, M. P., Sotelo, M., Thway, M. M., Hassan, M., Hassan, M. S. E., Azfar, M., Bouhuwaish, M., Taha, M., Zaieem, M., Korkoman, M., Guraieb, M., Shalaby, M., Raza, M. A., Younis, M. U., Elhadi, M., Zulfiqar Ali, M., Quazi, N., Dudi-Venkata, N. N., Alselaim, N., Loria, N., Ramirez, N. V., Win Than, N., Smart, N., Trelles, N., Pinto, N., Allievi, N., Petrucciani, N., Antonacci, N., Cillara, N., De'Angelis, N., Gica, N., Nicolaescu, D. C., Krystek, N., Falco, N., Pecorelli, N., Tamini, N., Dallas, N. A., Machairas, N., Brito, N., Fieturi, N. A., Ortega, N., Mercado, O. A., Irkorucu, O., Alsherif, O., Valles, O., Ioannidis, O., Palmas, O. H., Palmas, O. I. H., Guadarrama, O. S., Bozbiyik, O., Omelanczuk, P., Ottolino, P., Rodrigues, P., Ruiz, P., Campenni, P., Chiarade, P., Olivares, P. P., Baroffio, P., Panaccio, P., Wintringer, P., Di Fronzo, P., Talento, P., Favoriti, P., Sendino, P., Marsanic, P., Mifsut, P., Andrade, P., Ajawin, P., Abadia-Barno, P., Castaneda, P. A. N., Arevalos, P. O. S., Bellver, P. P., Koh, P. S., Souza, P., Major, P., Bali, R. S., Khattar, R. M., Lui, R., Melo, R. B., Ebrahiminia, R., Azar, R., Murga, R. L., Pirolo, R., Brady, R., Davies, R. J., Dholakia, R., Rattan, R., Singhal, R., Lim, R., Angelico, R., Isernia, R. M., Tutino, R., Faccincani, R., Peltrini, R., Carrera-Ceron, R., Tejos, R., Kashyap, R., Fajardo, R., Lozito, R., Pareja, R. M., Garbarino, S., Morales-Conde, S., Benli, S., Mansour, S., Flores, S., Suarez, S. L., Lopez, B. S., Fuentes, S., de las Casas, S. G., Napetti, S., de Guzman, S. O., Awad, S., Lujan, S. A. W., Gentilli, S., Grimaldi, S., Pizarro, S. O., Tayar, S., Nabi, S., Chan, S. M., Junaid, S., Rojas, S., Monetti, S., Garcia, S., Salvans, S., Tenconi, S., Shaw, S., Santoni, S., Parra, S. A., Cardenas, S., Perez-Bertolez, S., Chiappetta, S., Dessureault, S., Delis, S., Bonapasta, S. A., Rausei, S., Scaringi, S., Keswani, S., Ali, S. M., Cetinkunar, S., Fung, T. L. D., Rawashdeh, T., Lopez, T. N., De Campos, T., Duque, T. C., Perra, T., Liakakos, T., Daskalakis, T., Barnes, T., Koeter, T., Zalla, T., Gonzalez, T. E., Elosua, T., Campagnaro, T., Brown, T., Luoto, T., Oumar, T. A., Giustizieri, U., Grossi, U., Bracale, U., Rivas, U., Sosa, V., Testa, V., Andriola, V., Tonini, V., Balassone, V., Celentano, V., Progno, V., Raju, V., Carroni, V., Cavallaro, V., Rao Katta, V., De Simone, V., Primo Romaguera, V., Garcia Orozco, V., Luraschi, V., Rachkov, V., Turrado-Rodriguez, V., Visag-Castillo, V., Dowling, V., Graham, V., Papagni, V., Vigorita, V., Fonseca, V. C., Carneros, V. J., Bellato, V., Goncalves, W., Powers, W. F., Grigg, W., Bechstein, W. O., Lim, Y. B., Altinel, Y., Golubovic, Z., Balciscueta, Z., Ielpo, B, Podda, M, Pellino, G, Pata, F, Caruso, R, Gravante, G, Di Saverio, S, Orengia, A, Chowdary, A, Kulkarni, A, Kuvvetli, A, Navarro, A, Smith, A, Cavero Ibiricu, A, D Nacion, A J, Alsaleh, A, Alhazmi, A, Elmabri, A, Wani, A, Rencuzogullari, A, Sarriugarte Lasarte, A, Valle Rubio, A, Bavikatte, A, Kumar, A, Jamiri, A-R, M Alvarado Padilla, A, Cacurri, A, de San Ildefonso, A, Porcu, A, Sartori, A, Rocca, A, Paz Yáñez, A, Becaria, A, Solís-Peña, A, Sretenović, A, Urbistondo, A, Bandin, A, Najar, A, De Luca, A, Boddy, A, Charalabopoulos, A, Tzivanakis, A, Amendola, A, Ramirez-Gutierrez de Velasco, A, Cihat Yildirim, A, Frontali, A, O Toure, A, García-Granero, A, Martínez Roldan, A, Sanz Larrainzar, A, Sanjiva Ratnayake, A, M Gonzalez-Ganso, A, M Minaya-Bravo, A, Das, A, Bondurri, A, Costanzi, A, Lucchi, A, Mazzari, A, Musig, A, Peloso, A, Piano, A, Police, A, Mihailescu, A, Pouy, A, Romano, A, Iossa, A, C Leonetti, A, Guariniello, A, Isaac, A, P Delli Bovi, A, Chessa, A, Tromba, A, Álvarez Martínez, A, Brillantino, A, Caira, A, Castaldi, A, Ferronetti, A, Giuliani, A, Prestera, A, Ramos-De la Medina, A, Tarasconi, A, Tornambè, A, Picciariello, A, Ioannidis, A, Leppäniemi, A, Khan, A, Rashid, A, E Pérez-Sánchez, A L, Mittal, A, Rahman Mitul, A, Mehraj, A, Laharwal, A, Dorismé, A, Marinis, A, Iqbal, A, Moncada, A, Braccio, B, Alkhafaji, B, de Andrés Asenjo, B, Martin-Perez, B, De Simone, B, Sánchez Pérez, B, Creavin, B, Calì, B, Pascotto, B, Stubbs, B, Zavala Retes, B, Jovanovic, B, P Goh, B K, Sensi, B, Biddau, C, Gazia, C, Vallicelli, C, A Fagundes, C, Cerdán Santacruz, C, Chirico, C, J Gómez Díaz, C, Petrola, C, Sánchez Rodriguez, C, Yánez Benítez, C, Dammaro, C, Lo Faro, C, Reinke, C, Dominguez Paez, C, Oliva, C, Paranjape, C, Thomas, C, Fung Chia, C, Kwan Kong, C, De Lucia, C, Ovalle Chao, C, Arcudi, C, Guerci, C, Chia, C, Parise, C, Folliero, C, Varela, C, M Ferguson, D, Camacho, D, Popowich, D, Souza Lima, D, Rega, D, Delogu, D, Zigiotto, D, Vinci, D, D'Antonio, D, Parini, D, A Merlini, D, E Zimmerman, D D, Moro-Valdezate, D, Pertile, D, M Giusti, D, S Keller, D, Tarik, D, Kalivaçi, D, Mazingi, D, G Maldonado-Pintado, D, Sasia, D, Linardoutsos, D, Osilli, D, Murrone, D, Russello, D, Rodas, E, A Acuña Roa, E, Ricciardi, E, Rosso, E, Saladino, E, Flores-Villalba, E, Ruiz Ajs, E, Smith-Singares, E, Baili, E, Kouroumpas, E, Bourmpouteli, E, Douka, E, Martin-Perez, E, Guaitoli, E, Samadov, E, Francone, E, Vaterlini, E, Morales, E, Peña, E, Zhao, E, Del Pozo Andres, E, Benzoni, E, Erdas, E, Pinotti, E, Colás-Ruiz, E, Aytac, E, Laterza, E, Agastra, E, Foianini, E, Moscoso, E, Laviano, E, Marra, E, Cardamone, E, Licardie, E, Mpaili, E, Pinna, E, Varo, E, M Navarro, F, Marino, F, Medas, F, Romano, F, Maraska, F, Saliu, F, Madrid, F, Rosa, F, Mastella, F, Gheza, F, Luvisetto, F, Alconchel, F, Monge Vieira, F, Pareja, F, Agresta, F, Luna, F, Bonilla, F, Cordera, F, Burdió, F, Mendoza-Moreno, F, Muñoz Flores, F, Pardo Aranda, F, Taylor, F, L Ramos, F, Fernandes, F, P Tropeano, F, Balestra, F, Bianco, F, Ceci, F, Colombo, F, Di Marzo, F, Ferrara, F, Lancellotti, F, Lazzarin, F, Litta, F, Martini, F, Pizza, F, Roscio, F, Virdis, F, Blanco Antona, F, Cervantes Ramírez, F, M Fernandez, F, O Llinares, F, Quezada, F, Schlottmann, F, Herrera-Almario, G, Massaferro, G, Bislenghi, G, van Ramshorst, G, Gallo, G, Luglio, G, Bointas, G, Kampouroglou, G, Papadopoulos, G, Arredondo Manrique, G, Calini, G, Nastri, G, Formisano, G, Galiffa, G, M Palini, G, Colucci, G, Pagano, G, Vanni, G, Casoni Pattacini, G, De Paola, G, Lisi, G, Partida, G, Bellanova, G, De Nobili, G, Sammy Necchi, G, Sinibaldi, G, Tebala, G, Bagaglini, G, Izzo, G, Argenio, G, Brisinda, G, Candilio, G, Di Grezia, G, Esposito, G, Faillace, G, Frazzetta, G, La Gumina, G, Nigri, G, Romeo, G, Chocarro Amatriaín, G, Ortega, G, Martin-Martin, G, A Stavrou, G, Gunadi, G, Armand Ugon, G, Machain, G, Marcucci, G, Martínez-Mier, G, M Machain, G, Nari, G, Calvo, H, Fathy, H, Hamilton, H, Ahmed, H, Faraj, H, Nava, H, Ordas Macias, H, Nikaj, H, Solano, H, Ahmed Khan, H, Sánchez Alarcón, H, Ebied, H, Giani, I, Villalabeitia Ateca, I, Neri, I, A San Roman, I, Fidoshev, I, Martinez Rodriguez, I, Negoi, I, Ortega, I, Bernescu, I, Shari Russo, I, Vincente Rodríguez, I, Palomares, I, Baltazar, I, Jaén Torrejimeno, I, M Cornejo Jurado, I, Reccia, I, Hussain, I, Brito Toledo, I, Mora-Guzmán, I, Al-Najami, I, Dogaru, I, Romic, I, Balciscueta, I, C Kenington, J, Sagolsem, J, Y Jang, J, Olivier, J, Lammel-Lindemann, J, Dziakova, J, I Roldán Villavicencio, J, Salinas, J, Pejanovic Jose Gustavo Parreira, J, Rincón Pérez, J, S Reyes, J A, A Medina Luque, J, Mak, J, Salas Rodriguez, J, H Herrera Kok, J, Krook, J, A Diaz-Elizondo, J, Castell, J, Eduardo García-Flores, J, M Jover Navalón, J, M Silva Rodrigues, J, Pereira Pinto, J, T Castell Gómez, J, Bellido Luque, J, C Martín Del Olmo, J, C Salamea, J, F Coronel Olivier, J, L Blas Laina, J, M Ordoñez, J, Gutierrez, J, Abba, J, Ahmad Sofi, J, Sherafgan, K, Sahnan, K, Yanaga, K, Beatson, K, Asim, L, Alvarez, L, Siragusa, L, Farber, L, Ong, L, Athanasios, L, García-Bruña, L, De Martino, L, Ferrario, L, Giordano, L, Gordini, L, Pio, L, Ponchietti, L, Moletta, L, Curella, L, Poggi, L, Taglietti, L, Bonavina, L, Conti, L, Goffredi, L, A Garcia Ruiz, L, Barrionuevo, L, E Fregoso, L, F Cabrera, L, G Rodriguez, L, Grande, L, G Osoria, L, J Kantun Gonzalez, L, Sánchez-Guillén, L, Tallon-Aguilar, L, Tresierra, L, Giavarini, L, Hasabelnabi, M, Odovic, M, Uemura, M, Khan, M, Artiles-Armas, M, David, M, Di Martino, M, G Spampinato, M, F Ribeiro, M A, Viola, M, Angrisani, M, Calussi, M, Cannistrà, M, Catarci, M, Cereda, M, Conte, M, Giordano, M, Pellicciaro, M, Vito Marino, M, E Vaterlini, M, F Jiménez, M, G Lolli, M, I Bellini, M, Lemma, M, M Chiarello, M, Nicola, M, Arrigo, M, Caneda Mejia, M, Montes Manrique, M, Rodriguez-Lopez, M, Serradilla-Martín, M, Zambrano Lara, M, Martínez, M, Bagnall, M, Peter, M, Cañón Lara, M, Jimenez Gomez, M, Paniagua-Garcia-Señorans, M, Perez Gonzalez, M, Rutegård, M, Salö, M, Franceschilli, M, Silveri, M, Veroux, M, Pezzulo, M, Nardi, M, Rottoli, M, Tolonen, M, Pedraza Ciro, M, Zuluagua, M, Cannavò, M, Cervellera, M, Iacobone, M, Montuori, M, García Domínguez, M, Bingol-Kologlu, M, Tahir, M, Lim, M, J Wilson, M S, Wilson, M, Campanelli, M, Bisaccia, M, De Rosa, M, Maruccia, M, Paterno, M, Pisano, M, Torre, M, Treviño, M, Zuolo, M, A Hernandez Bartolome, M, Farina, M, Pera, M, Prieto Calvo, M, Sotelo, M, Myat Thway, M, Hassan, M, Salah Eldin Hassan, M, Azfar, M, Bouhuwaish, M, Taha, M, Zaieem, M, Korkoman, M, Guraieb, M, Shalaby, M, A Raza, M, U Younis, M, Elhadi, M, Zulfiqar Ali, M, Quazi, N, N Dudi-Venkata, N, Alselaim, N, Loria, N, Villan Ramírez, N, Win Than, N, Smart, N, Trelles, N, Pinto, N, Allievi, N, Petrucciani, N, Antonacci, N, Cillara, N, De'Angelis, N, Gica, N, C Nicolaescu, D, Krystek, N, Falco, N, Pecorelli, N, Tamini, N, A Dallas, N, Machairas, N, Brito, N, Ahmed Fieturi, N, Ortega, N, Avila Mercado, O, Irkorucu, O, Alsherif, O, Valles, O, Ioannidis, O, Hernández Palmas, O, I Hernandez Palmas, O, Sanz Guadarrama, O, Bozbiyik, O, Omelanczuk, P, Ottolino, P, Rodrigues, P, Ruiz, P, Campenni, P, Chiarade, P, Prieto Olivares, P, Baroffio, P, Panaccio, P, Wintringer, P, Di Fronzo, P, Talento, P, Favoriti, P, Sendino, P, Marsanic, P, Mifsut, P, Andrade, P, Ajawin, P, Abadía-Barnó, P, A Najar Castañeda, P, O Sillas Arevalos, P, Palazón Bellver, P, Soon Koh, P, Souza, P, Major, P, Singh Bali, R, Mohan Khattar, R, Lui, R, Bessa Melo, R, Ebrahiminia, R, Azar, R, López Murga, R, Pirolo, R, Brady, R, J Davies, R, Dholakia, R, Rattan, R, Singhal, R, Lim, R, Angelico, R, M Isernia, R, Tutino, R, Faccincani, R, Peltrini, R, Carrera-Ceron, R, Tejos, R, Kashyap, R, Fajardo, R, Lozito, R, Madariaga Pareja, R, Garbarino, S, Morales-Conde, S, Benli, S, Mansour, S, Flores, S, Limon Suarez, S, Santiago Lopez, B, Fuentes, S, Gortazar de Las Casas, S, Napetti, S, Ortiz de Guzmán, S, Awad, S, A Weckmann Luján, S, Gentilli, S, Grimaldi, S, Olivares Pizarro, S, Tayar, S, Nabi, S, M Chan, S, Junaid, S, Rojas, S, Monetti, S, García, S, Salvans, S, Tenconi, S, Shaw, S, Santoni, S, A Parra, S, Cárdenas, S, Pérez-Bertólez, S, Chiappetta, S, Dessureault, S, Delis, S, Amore Bonapasta, S, Rausei, S, Scaringi, S, Keswani, S, M Ali, S, Cetinkunar, S, D Fung, T L, Rawashdeh, T, N López, T, De Campos, T, Calderon Duque, T, Perra, T, Liakakos, T, Daskalakis, T, Barnes, T, Koëter, T, Zalla, T, E González, T, Elosua, T, Campagnaro, T, Brown, T, Luoto, T, Alpha Oumar, T, Giustizieri, U, Grossi, U, Bracale, U, Rivas, U, Sosa, V, Testa, V, Andriola, V, Tonini, V, Balassone, V, Celentano, V, Progno, V, Raju, V, Carroni, V, Cavallaro, V, Rao Katta, V, De Simone, V, Primo Romaguera, V, H García Orozco, V, Luraschi, V, Rachkov, V, Turrado-Rodriguez, V, Visag-Castillo, V, Dowling, V, Graham, V, Papagni, V, Vigorita, V, Cordeiro Fonseca, V, Jimenez Carneros, V, Bellato, V, Gonçalves, W, F Powers, W, Grigg, W, O Bechstein, W, B Lim, Y, Altinel, Y, Golubović, Z, Balciscueta, Z, Pellino G., Podda M., Pata F., Di Saverio S., Ielpo B, Rottoli M., and Tonini V.

Subjects
medicine.medical_specialty, business.industry, COVID-19, Perioperative, Appendicitis, COVID-19 testing, humans, healthcare disparities, mass screening, perioperative care, Perioperative Care, Settore MED/18 - Chirurgia Generale, Healthcare Disparitie, COVID-19 Testing, Pandemic, Acute appendicitis, medicine, Humans, Mass Screening, Surgery, Appendiciti, Healthcare Disparities, Intensive care medicine, business, Human
Abstract

Acute appendicitis remains a common reason for hospital admission. Reports have suggested a reduction in patients attending emergency departments during the acute phase of the SARSCoV- 2 pandemic. Moreover, a global surge in conservative management of acute appendicitis has recently been registered by the Appy Study of the Association of Italian Surgeons in Europe (ACIE)1. This is a treatment option that has been known for some years, although quite seldom used before the pandemic2–4. As most countries are experiencing new waves of the pandemic, the attitude of surgeons towards SARS-CoV-2 screening policies and personal protective equipment (PPE) used during the management of patients with acute appendicitis need to be established. According to a subanalysis of the ACIE Appy Study, half of surgeons globally were testing patients for SARS-CoV-2 only when symptomatic or there was suspicion of infection; approximately 12 per cent did not test patients at all (Fig. 1 and Table S1). There were regional differences. In Europe, respondents tested all patients (50.8 per cent) or those with suspected infection (43.9 per cent), with only 5.3 per cent not being tested at all. In the USA, the majority of participants only tested patients with a suspected infection (65.6 per cent). A similar picture of testing only those with a suspected infection was also reported from Latin America (57.2 per cent), Asia/Middle East (76.8 per cent), and Africa (41.7 per cent). Even more worrisome, 58.3 per cent of respondents from Africa and 27.6 per cent from Latin America were not testing patients at all before appendicectomy. Concerning the screening modality, most respondents used PCR alone or in combination with chest imaging. Serology was rarely used overall and never in Africa (Fig. 1 and Table S2 ). It is now accepted that chest imaging is not routinely required and that PCR is an accurate screening modality. Serology might, however, be useful to shed light on the disease course and previous exposure to the virus, but respondents from some countries still have restricted access to this test. In terms of PPE during appendicectomy, most African respondents did not use different PPE compared with the prepandemic period in patients who tested negative for COVID-19. More concerning is that 58.3 per cent did not use different PPE in untested patients. This differed from other regions where the rate of those not considering a change of PPE in untested patients did not exceed 22 per cent. One in 10 respondents from Latin America also reported that they were not using different PPE compared with the prepandemic phase in patients who tested positive for COVID-19. These data, and taking into account the high prevalence of acute appendicitis, leads to the conclusion that omission of routine patient screening may have contributed to local clusters among patients and threatened the safety of healthcare workers5. In this respect, it is likely that limited access to PPE explains the attitude of surgeons towards patients with unknown SARSCoV- 2 status or those infected, raising ethical concerns about the safety of surgical staff. It is of outmost importance that, even during challenging times and stress on economic stability, industrialized countries make efforts to sustain low-income countries and those with limited resources. This would ensure equal working conditions, safer treatment for patients with acute appendicitis, and better control of the pandemic

Published
2021

16. DYNAMICS AND CHEMISTRY OF MARINE STRATOCUMULUS—DYCOMS-II

Author

Stevens, Bjorn, Lenschow, Donald H., Vali, Gabor, Gerber, Hermann, Bandy, A., Blomquist, B., Brenguier, J.-L., Bretherton, C. S., Burnet, F., Campos, T., Chai, S., Faloona, I., Friesen, D., Haimov, S., Laursen, K., Lilly, D. K., Loehrer, S. M., Malinowski, Szymon P., Morley, B., Petters, M. D., Rogers, D. C., Russell, L., Savic-Jovcic, V., Snider, J. R., Straub, D., Szumowski, Marcin J., Takagi, H., Thornton, D. C., Tschudi, M., Twohy, C., Wetzel, M., and van Zanten, M. C.

Published
2003

17. SUPPLEMENT : DYNAMICS AND CHEMISTRY OF MARINE STRATOCUMULUS—DYCOMS-II Flight Summaries

Author

Stevens, Bjorn, Lenschow, Donald H., Vali, Gabor, Gerber, Hermann, Bandy, A., Blomquist, B., Brenguier, J.-L., Bretherton, C. S., Burnet, F., Campos, T., Chai, S., Faloona, I., Friesen, D., Haimov, S., Laursen, K., Lilly, D. K., Loehrer, S. M., Malinowski, Szymon P., Morley, B., Petters, M. D., Rogers, D. C., Russell, L., Savic-Jovcic, V., Snider, J. R., Straub, D., Szumowski, Marcin J., Takagi, H., Thornton, D. C., Tschudi, M., Twohy, C., Wetzel, M., and van Zanten, M. C.

Published
2003

18. WRF-Chem Simulations of Lightning-NOx Production and Transport in Oklahoma and Colorado Thunderstorms Observed During DC3

Author

Cummings, Kristin A, Pickering, Kenneth E, Barth, M, Bela, M, Li, Y, Allen, D, Bruning, E, MacGorman, D, Rutledge, S, Basarab, B, Fuchs, B, Pollack, I, Ryerson, T, Carey, L, Flocke, F, Campos, T, Weinheimer, A, and Diskin, G

Subjects
Meteorology And Climatology
Abstract

The focus of this analysis is on lightning-generated nitrogen oxides (LNOx) and their distribution for two thunderstorms observed during the Deep Convective Clouds and Chemistry (DC3) field campaign in May-June 2012. The Weather Research and Forecasting Chemistry (WRF-Chem) model is used to perform cloud-resolved simulations for the May 29-30 Oklahoma severe convection, which contained one supercell, and the June 6-7 Colorado squall line. Aircraft and ground-based observations (e.g., trace gases, lightning and radar) collected during DC3 are used in comparisons against the model-simulated lightning flashes generated by the flash rate parameterization schemes (FRPSs) incorporated into the model, as well as the model-simulated LNOx predicted in the anvil outflow. Newly generated FRPSs based on DC3 radar observations and Lightning Mapping Array data are implemented in the model, along with previously developed schemes from the literature. The results of these analyses will also be compared between storms to investigate which FRPSs were most appropriate for the two types of convection and to examine the variation in the LNOx production. The simulated LNOx results from WRF-Chem will also be compared against other previously studied mid-latitude thunderstorms.

Published
2016

20. Aircraft Measurements of BrO, IO, Glyoxal, NO2, H2O, O2-O2 and Aerosol Extinction Profiles in the Tropics: Comparison with Aircraft-/Ship-Based in Situ and Lidar Measurements

Author

Volkamer, R, Baidar, S, Campos, T. L, Coburn, S, DiGangi, J. P, Dix, B, Eloranta, E. W, Koenig, T. K, Morley, B, Ortega, I, Pierce, B. R, Reeves, M, Sinreich, R, Wang, S, Zondlo, M. A, and Romashkin, P. A

Subjects
Geophysics
Abstract

Tropospheric chemistry of halogens and organic carbon over tropical oceans modifies ozone and atmospheric aerosols, yet atmospheric models remain largely untested for lack of vertically resolved measurements of bromine monoxide (BrO), iodine monoxide (IO) and small oxygenated hydrocarbons like glyoxal (CHOCHO) in the tropical troposphere. BrO, IO, glyoxal, nitrogen dioxide (NO2), water vapor (H2O) and O2-O2 collision complexes (O4/ were measured by the University of Colorado Airborne Multi-AXis Differential Optical Absorption Spectroscopy (CU AMAXDOAS) instrument, aerosol extinction by high spectral resolution lidar (HSRL), in situ aerosol size distributions by an ultra high sensitivity aerosol spectrometer (UHSAS) and in situ H2O by vertical-cavity surface-emitting laser (VCSEL) hygrometer. Data are presented from two research flights (RF12, RF17) aboard the National Science Foundation/ National Center for Atmospheric Research Gulfstream V aircraft over the tropical Eastern Pacific Ocean (tEPO) as part of the "Tropical Ocean tRoposphere Exchange of Reactive halogens and Oxygenated hydrocarbons" (TORERO) project (January/February 2012). We assess the accuracy of O4 slant column density (SCD) measurements in the presence and absence of aerosols. Our O4-inferred aerosol extinction profiles at 477 nm agree within 6% with HSRL in the boundary layer and closely resemble the renormalized profile shape of Mie calculations constrained by UHSAS at low (sub-Rayleigh) aerosol extinction in the free troposphere. CU AMAX-DOAS provides a flexible choice of geometry, which we exploit to minimize the SCD in the reference spectrum (SCDREF, maximize signal-to-noise ratio) and to test the robustness of BrO, IO and glyoxal differential SCDs. The RF12 case study was conducted in pristine marine and free tropospheric air. The RF17 case study was conducted above the NOAA RV Ka'imimoana (TORERO cruise, KA-12-01) and provides independent validation data from ship-based in situ cavity-enhanced DOAS and MAX-DOAS. Inside the marine boundary layer (MBL) no BrO was detected (smaller than 0.5 pptv), and 0.2-0.55 pptv IO and 32-36 pptv glyoxal were observed. The near-surface concentrations agree within 30% (IO) and 10% (glyoxal) between ship and air-craft. The BrO concentration strongly increased with altitude to 3.0 pptv at 14.5 km (RF12, 9.1 to 8.6 deg N; 101.2 to 97.4 deg W). At 14.5 km, 5-10 pptv NO2 agree with model predictions and demonstrate good control over separating tropospheric from stratospheric absorbers (NO2 and BrO). Our profile retrievals have 12-20 degrees of freedom (DoF) and up to 500m vertical resolution. The tropospheric BrO vertical column density (VCD) was 1.5 x 10(exp 13) molec cm(exp -2) (RF12) and at least 0.5 x 10(exp 13) molec cm(exp -2) (RF17, 0- 10 km, lower limit). Tropospheric IO VCDs correspond to 2.1 x 10(exp 12) molec cm(exp -2) (RF12) and 2.5 x 10(exp 12) molec cm(exp -2) (RF17) and glyoxal VCDs of 2.6 x 10(exp 14) molec cm(exp -2) (RF12) and 2.7 x 10(exp 14) molec cm(exp -2) (RF17). Surprisingly, essentially all BrO as well as the dominant IO and glyoxal VCD fraction was located above 2 km (IO: 58 plus or minus 5 %, 0.1-0.2 pptv; glyoxal: 52 plus or minus 5 %, 3-20 pptv). To our knowledge there are no previous vertically resolved measurements of BrO and glyoxal from aircraft in the tropical free troposphere. The atmospheric implications are briefly discussed. Future studies are necessary to better understand the sources and impacts of free tropospheric halogens and oxygenated hydrocarbons on tropospheric ozone, aerosols, mercury oxidation and the oxidation capacity of the atmosphere.

Published
2015
Full Text
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28. Increasing springtime ozone mixing ratios in the free troposphere over western North America

Author

Cooper, O.R., Parrish, D.D., Stohl, A., Trainer, M., Nedelec, P., Thouret, V., Cammas, J.P., Oltmans, S.J., Johnson, B.J., Tarasick, D., Leblanc, T., McDermid, I.S., Jaffe, D., Gao, R., Stith, J., Ryerson, T., Aikin, K., Campos, T., Weinheimer, A., and Avery, M.A.

Subjects
North America -- Environmental aspects, Air quality -- Environmental aspects -- Research, Atmospheric ozone -- Environmental aspects -- Research, Troposphere -- Health aspects -- Environmental aspects, Air pollution -- Health aspects, Environmental issues, Science and technology, Zoology and wildlife conservation
Abstract

In the lowermost layer of the atmosphere--the troposphere--ozone is an important source of the hydroxyl radical, an oxidant that breaks down most pollutants and some greenhouse gases (1). High concentrations of tropospheric ozone are toxic, however, and have a detrimental effect on human health and ecosystem productivity (1). Moreover, tropospheric ozone itself acts as an effective greenhouse gas (2). Much of the present tropospheric ozone burden is a consequence of anthropogenic emissions of ozone precursors (3) resulting in widespread increases in ozone concentrations since the late 1800s (3-7). At present, east Asia has the fastest-growing ozone precursor emissions (8). Much of the springtime east Asian pollution is exported eastwards towards western North America?. Despite evidence that the exported Asian pollution produces ozone (10), no previous study has found a significant increase in free tropospheric ozone concentrations above the western USA since measurements began in the late 1970s (5,11,12). Here we compile springtime ozone measurements from many different platforms across western North America. We show a strong increase in springtime ozone mixing ratios during 1995-2008 and we have some additional evidence that a similar rate of increase in ozone mixing ratio has occurred since 1984. We find that the rate of increase in ozone mixing ratio is greatest when measurements are more heavily influenced by direct transport from Asia. Our result agrees with previous modelling studies, which indicate that global ozone concentrations should be increasing during the early part of the twenty-first century as a result of increasing precursor emissions, especially at northern mid-latitudes (13), with western North America being particularly sensitive to rising Asian emissions (14). We suggest that the observed increase in springtime background ozone mixing ratio may hinder the USA's compliance with its ozone air quality standard., Inventoried global anthropogenic ozone precursor emissions of nitrogen oxides (NO + N[O.sub.2] = N[O.sub.x]) and volatile organic compounds increased rapidly during 1960-1990, but levelled off in the 1990s (15). Comprehensive [...]

Published
2010
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Ferrie, J., Shipley, M., Cappuccio, F., Brunner, E., Miller, M., Kumari, M., Marmot, M., Coenen, A., Castillo, J. L., Araya, F., Bustamante, G., Montecino, L., Torres, C., Oporto, S., Gronli, J., Fiske, E., Murison, R., Bjorvatn, B., Sorensen, E., Ursin, R., Portas, C. M., Rajaraman, S., Gribok, A., Wesensten, N., Balkin, T., Reifman, J., Dursunoglu, N., Ozkurt, S., Baser, S., Delen, O., Sarikaya, S., Sadler, P., Mitchell, P., Françon, D., Decobert, M., Herve, B., Richard, A., Griebel, G., Avenet, P., Scatton, B., Fur, G. L., Eckert, D., Jordan, A., Wellman, A., Smith, S., Malhotra, A., White, D., Bruck, D., Thomas, I., Kritikos, A., Oertel, W., Stiasny-Kolster, K., Garcia-Borreguero, D., Poewe, W., Hoegl, B., Kohnen, R., Schollmayer, E., Keffel, J., Trenkwalder, C., Valle, A., Roizenblatt, S., Fregni, F., Boggio, P., Tufik, S., Ward, K., Robertson, L., Palmer, L., Eastwood, P., Hillman, D., Lee, J., Mukherjee, S., de Padova, V., Barbato, G., Ficca, G., Zilli, I., Salzarulo, P., Veldi, M., Hion, T., Vasar, V., Kull, M., Nowak, L., Davis, J., Latzer, Y., Tzischinsky, O., Crowley, S., Carskadon, M., Anca-Herschkovitsch, M., Frey, D., Ortega, J., Wiseman, C., Farley, C., Wright, K., Campbell, A., Neill, A., Spiegel, K., Leproult, R., Tasali, E., Scherberg, N., van Cauter, E., Noradina, A. T., Karim, N. A., Norlinah, I., Raymond, A. A., Sahathevan, R., Hamidon, B., Werth, E., Poryazova, R., Khatami, R., Bassetti, C., Beran, R. G., Ainley, L., Holand, G., Duncan, J., Kinney, H., Davis, B., Hood, B., Frey, S., Schmidt, C., Hofstetter, M., Peigneux, P., Cajochen, C., Hu, W.-P., Li, J.-D., Zhang, C., Boehmer, L., Siegel, J., Zhou, Q.-Y., Sagawa, Y., Kondo, H., Takemura, T., Kanayama, H., Kaneko, Y., Sato, M., Kanbayashi, T., Hishikawa, Y., Shimizu, T., Viola, A., James, L., Schlangen, L., Dijk, D.-J., Andretic, R., Kim, Y.-C., Han, K.-A., Jones, F., Greenspan, R., Sanford, L., Yang, L., Tang, X., Dieter, K., Uta, E., Sven, H., Richard, M., Oyane, N., Pallesen, S., Holsten, F., Inoue, Y., Fujita, M., Emura, N., Kuroda, K., Uchimura, N., Johnston, A., Astbury, J., Kennedy, G., Hoedlmoser, K., Schabus, M., Pecherstorfer, T., Moser, S., Gruber, G., Anderer, P., Klimesch, W., Naidoo, N., Ferber, M., Pack, A., Neu, D., Mairesse, O., Hoffmann, G., Dris, A., Lambrecht, L., Linkowski, P., Verbanck, P., Le Bon, O., Matsuura, N., Yamao, M., Adachi, N., Aritomi, R., Komada, Y., Tanaka, H., Shirakawa, S., Kondoh, H., Takemura, F., Ohnuma, S., Suzuki, M., Uemura, S., Iskra-Golec, I., Smith, L., Thanh, D.-V., Boly, M., Phillips, C., Steven, L., Luxen, A., Maquet, M., Jay, S., Dawson, D., Lamond, N., Basner, M., Fomberstein, K., Dinges, D., Ogawa, K., Nittono, H., Yamazaki, K., Hori, T., Glamann, C., Hornung, O., Hansen, M.-L, Danker-Hopfe, H., Jung, C., Kecklund, G., Anund, A., Peters, B., Åkerstedt, T., Verster, J., Roehrs, T., Mets, M., de Senerpont Domis, L., Olivier, B., Volkerts, E., Knutson, K., Lauderdale, D., Rathouz, P., Christie, M., Chen, L., Bolortuya, Y., Lee, E., Mckenna, J., Mccarley, R., Strecker, R., Tamaki, M., Matsuoka, T., Aritake, S., Suzuki, H., Kuriyama, K., Ozaki, A., Abe, Y., Enomoto, M., Tagaya, H., Mishima, K., Matsuura, M., Uchiyama, M., Lima-Pacheco, E., Davis, K., Sabourin, C., Lortie-Lussier, M., de Koninck, J., van Der Werf, Y., van Der Helm, E., Schoonheim, M., van Someren, E., Tokley, M., Ball, M., Sato, T., Ghilardi, M. F., Moisello, C., Bove, M., Busi, M., Pelosin, E., Tononi, G., Eguchi, N., Sakata, M., Urade, Y., Doe, N., Yoshihara, K., Abe, K., Manabe, Y., Iwatsuki, K., Hayashi, T., Shoji, M., Kamiya, T., Gooley, J., Brainard, G., Rajaratnam, S., Kronauer, R., Czeisler, C., Lockley, S., Phillips, A., Robinson, P., Burgess, H., Revell, V., Eastman, C., Bihari, S., Ramakrishnan, N., Camerino, D., Conway, P. M., Costa, G., Vandewalle, G., Albouy, G., Sterpenich, V., Darsaud, A., Rauchs, G., Berken, P.-Y, Balteau, E., Maquet, P., Tendero, J. A., Domenech, M. P., Isern, F. S., Martínez, C., Roure, N., Sancho, E. E., Moreno, C. R., Silva, M., Marqueze, E. C., Waage, S., Bobko, N., Chernyuk, V., Yavorskiy, Y., Saxvig, I., Sørensen, E., de Mello, M. T., Esteves, A., Teixeira, C., Bittencourt, L. R., Silva, R., Pires, M. 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U., Kokturk, O., Demirtas, S., Kanbay, A., Tavil, Y., Bukan, N., Demritas, S., Olsen, S., Douglas, J., Oei, T., Williams, S., Leung, S., Starmer, G., Lee, R., Chan, A., Dungan, G., Cistulli, P., Zeng, B., Bansal, A., Patial, K., Vijayan, V. K., Sonka, K., Fialova, L., Svarcova, J., Volna, J., Jiroutek, P., Pretl, M., Bartos, A., Hasegawa, R. A., Sasanabe, R., Nomura, A., Morita, M., Hori, R., Ohkura, Y., Shiomi, T. T., Collins, A., Jerums, G., Hare, D., Panagiotopoulos, S., Weatherhead, B., Bailey, M., Neil, C., Goldsworthy, U., Hill, C., Valencia-Flores, M., Resendiz, M., Juarez, S., Castano, A., Santiago, V., Aguilar, C., Ostrosky, F., Krum, H., Kaye, D., Neves, C., Decio, M., Monteiro, M., Cintra, F., Poyares, D., Viegas, C., Silva, C., Oliveira, H., Peixoto, T., Mikami, A., Watanabe, T., Kumano-Go, T., Adachi, H., Sugita, Y., Takeda, M., Oktay, B., Firat, H., Akbal, E., Ardic, S., Paim, S., Santos, R., Barrreto, A., Whitmore, H., Imperial, J., Temple, K., Rue, A., Hoffman, L., Liljenquist, D., Kazsa, K., Pavasovic, M., Copland, J., Ho, M., Jayamaha, J., Peverill, R., Hii, S., Hensley, M., Rowland, S., Windler, S., Johansson, M., Eriksson, P., Peker, Y., Råstam, L., Lindblad, U., Grote, L., Zou, D., Radlinski, J., Eder, D., Plens, C. M., Garcia Gonzaga, F. M., Farias Sa, P., Franco Oliveira, L. V., Faria Sa, P., Yoon, I.-Y., Chung, S., Hee Lee, C., Kim, J.-W., Faludi, B., Wang, X., Li, Q., Wan, H., Li, M., Pallayova, M., Donic, V., Tomori, Z., Ioacara, S., Olech, T., Mccallum, C., Bowes, M., Bowes, J., Chia, M., Gilbert, S. S., Sajkov, D., Teichtahl, H., Stevenson, I., Cunnington, D., Kalman, J., Szaboova, E., Higami, S., Kryger, M., Higami, Y., Suzuki, C., Kitano, H., Carin, S., Olof, S., Yngve, G., Gösta, B., Carlberg, B., Stenlund, H., Franklin, K. A., Oliveira, A., Vasconcelos, L., Martinez, D., Goncalves, S. C., Gus, M., Silva, E. O. A., Fuchs, S. C., Fuchs, F. D., Li, A., Au, J., Ho, C., Sung, R., Wing, Y., Tada, H., Terada, N., Togawa, K., Nakagawa, Y., Kishida, K., Kihara, S., Hirata, A., Sonoda, M., Nishizawa, H., Nakamura, T., Shimomura, I., Funahashi, T., Andrewartha, P., Sasse, A., Becker, M., Troester, N., Olschewski, H., Lisamayerkard, L., Glos, M., Blau, A., Peter, J.-G., Chesworth, W., Wilson, G., Piper, A., Chuang, L.-P., Lin, S.-W., Wang, C.-J., Li, H.-Y., Chou, Y.-T., Fu, J.-Y., Liao, Y.-F., Tsai, Y.-H., Chan, K., Laks, L., Nishibayashi, M., Miyamoto, M., Miyamoto, T., Hirata, K., Hoever, P., De Haas, S., Chiossi, E., Van Gerven, J., Dingemanse, J., Winkler, J., Cavallaro, M., Narui, K., Kasai, T., Dohl, T., Takaya, H., Kawana, F., Ueno, K., Panjwani, U., Thakur, L., Anand, J. P., Banerjee, P. K., Leigh, M., Paduch, A., Armstrong, J., Sampson, D., Kotajima, F., Mochizuki, T., Lorr, D., Harder, H., Chesworth, M., Becker, H., Abd-Elaty, N. M., Elprince, M., Ismail, N., Elserogi, W., Yeo, A., George, K., Thomson, K., Stadler, D., Bradley, J., Paul, D., Schwartz, A., Hagander, L., Harlid, R., Hultcrantz, E., Haraldsson, P., Cho, J.-G., Narayan, J., Nagarajah, M., Perri, R., Johnson, P., Burgess, K., Chau, N., Mcevoy, R. D., Arnardottir, E. S., Thorleifsdottir, B., Olafsson, I., Gislason, T., Tsuiki, S., Fujimatsu, S., Munezawa, T., Sato, Y., Subedi, P., Ainslie, P., Topor, Z., Whitelaw, W., Chan, M., So, H., Lam, H., Ng, S., Chan, I., Lam, C., Saigusa, H., Higurashi, N., He, Z. M., Cui, X. C., Li, J., Dong, X., Lv, Y., Zhou, M., Han, X., An, P., Wang, L., Macey, P. M., Serber, S., Cross, R., Yan-Go, F., Marshall, M., Rees, D., Lee, S. H., Ho Cho, J. I., Shin, C., Lee, J. Y., Kwon, S. Y., Kim, T.-H., Vedam, H., Barnes, D., Walter, H., Karin, J., Hermann, P., Belyavskiy, E., Galitsyn, P., Arbolishvili, G., Litvin, A., Chazova, I., Mareev, V., Ramar, K., Khan, A., Gay, P., Strömberg, A., Ulander, M., Fridlund, B., Mårtensson, J., Yee, B., Desai, A., Buchanan, P., Crompton, R., Melehan, K., Wong, P., Tee, A., Ng, A., Darendeliler, M. A., Ye, L., Maislin, G., Hurley, S., Mccluskey, S., Weaver, T., Yun, C.-H., Ji, K.-H., Ahn, J. Y., Lee, H.-W., Zhang, X., Yin, K., Zhaofang, G., Chong, L., Navailles, B., Zenou, E., Cheze, L., Pignat, J.-C., Tang, T., Remmers, J., Vasilakos, K., Denotti, A., Gilholme, J., Castronovo, V., Marelli, S., Aloia, M., Fantini, M. L., Kuo, T., Manconi, M., Zucconi, M., Ferini-Strambi, L., Livia Fantini, M., Giarolli, L., Oldani, A., Lee, Y., Trenell, M., Berend, N., Wang, M., Liang, Z., Lei, F., Komada, I., Nishikawa, M., Sriram, K., Mignone, L., Antic, R., Fujiwara, K., Beaudry, M., Gauthier, L., Laforte, M., Lavigne, G., Wylie, P., Orr, W., Grover, S., Geisler, P., Engelke, E., Cossa, G., Veitch, E., Brillante, R., Mcardle, N., Murphy, M., Singh, B., Gain, K., Maguire, C., Mutch, S., Brown, S., Asciuto, T., Newsam, C., Fransson, A., Ísacsson, G., Tsou, M.-C., Hsu, S.-P., Almendros, I., Acerbi, I., Vilaseca, I., Dcruz, O., Vaughn, B., Muenzer, J., Lacassagne, L., Montemayor, T., Roch-Paoli, J., Qian, J., Petocz, P., Chan, M. R., Munro, J., Zimmerman, M., Stanchina, M., Millman, R., Cassel, W., Ploch, T., Loh, A., Koehler, U., Jerrentrup, A., Greulich, T., Doyle, G., Pascoe, T., Jorgensen, G., Baglioni, C., Lombardo, C., Espie, C., Violani, C., Edell-Gustafsson, U., Swahn, E., Ejdeback, J., Tygesen, H., Johansson, A., Neckelmann, D., Hilde Nordhus, I., Zs-Kovács, Á., Vámos, E., Zs-Molnár, M., Maisuradze, L., Gugushvili, J., Darchia, N., Gvilia, I., Lortkipanidze, N., Oniani, N., Wang-Weigand, S., Mayer, G., Roth-Schechter, B., Hsu, S.-C., Yang, C.-M., Liu, C.-Y., Ito, H., Omvik, S., Nordhus, I. H., Farber, R., Scharf, M., Harris-Collazo, R., Pereira, J., Andras, S., Ohayon, M., David, B., Morgan, K., Voorn, T., Vis, J., Kuijer, J., Fortier-Brochu, E., Beaulieu-Bonneau, S., Ivers, H., Morin, C., Beaulieu-Benneau, S., Harris, J., Bartlett, D., Paisley, L., Moncada, S., Toelle, B., Bonnet, M. H., Arand, D., Bonnet, J., Bonnet, M., Doi, Y., Edéll-Gustafsson, U., Strijers, R., Fernando, A., Arroll, B., Warman, G., Funakura, M., Shikano, S., Unemoto, Y., Fujisawa, M., Hong, S.-C., Jeong, J.-H., Shin, Y.-K., Han, J.-H., Lee, S.-P., Lee, J.-H., Mignot, E., Nakajima, T., Hayashida, K., Honda, M., Ardestani, P., Etemadifar, M., Nejadnik, H., Maghzi, A. H., Basiri, K., Ebrahimi, A., Davoodi, M., Peraita-Adrados, R., Vicario, J. L., Shin, H.-B., Marti, I., Carriero, L., Fulda, S., Beitinger, P., Pollmacher, T., Lam, J. S. P., Fong, S. Y. Y., Tang, N. L. S., Ho, C. K. W., Li, A. M. C., Wing, Y. K., Guilleminault, C., Black, J., Wells, C., Kantor, S., Janisiewicz, A., Scammell, T., Tanaka, S., Smith, A., Neufing, P., Gordon, T., Fuller, P., Gompf, H., Pedersen, N., Saper, C., Lu, J., Sasai, T., Donjacour, C., Fronczek, R., Le Cessie, S., Lammers, G. J., van Dijk, J. G., Hayashi-Ogawa, Y., Okuda, M., Lam, V. K.-H., Chen, A. L., Ho, C. K.-W., Wing, Y.-K., Lehrhaft, B., Brilliante, R., van Der Zande, W., Overeem, S., van Dijk, G., Lammers, J. G., Opazo, C. J., Jeong, D.-U., Sung, Y. H., Lyoo, I. K., Takahashi, Y., Murasaki, M., Bloch, K., Jung, H., Dahab, M. M., Campos, T. F., Mccabe, S., Maravic, K., Wiggs, L., Connelly, V., Barnes, J., Saito, Y., Ogawa, M., Murata, M., Nadig, U., Rahman, A., Aritake, K., D’Cruz, O., Suzuki, K., Kaji, Y., Takekawa, H., Nomura, T., Yasui, K., Nakashima, K., Bahammam, A., Rab, M. G., Owais, S., Alsuwat, K., Hamam, K., Zs, M., Boroojerdi, B., Giladi, N., Wood, D., Sherman, D., Chaudhuri, R., Partinen, M., Abdo, F., Bloem, B., Kremer, B., Verbeek, M., Cronlein, T., Mueller, U., Hajak, G., Zulley, J., Namba, K., Li, L., Mtsuura, M., Kaneita, Y., Ohida, T., Cappeliez, B., Moutrier, R., De, S., Dwivedi, S., Chambers, D., Gabbay, E., Watanabe, A., Valle, C., Kauati, A., Watanabe, R., Chediek, F., Botte, S., Azevedo, E., Kempf, J., Cizza, G., Torvik, S., Brancati, G., Smirne, N., Bruni, A., Goff, E., Freilich, S., Malaweera, A., Simonds, A., Mathias, C., Morrell, M., Rinsky, B., Fonarow, G., Gradinger, F. P., Boldt, C., Geyh, S., Stucki, A., Dahlberg, A., Michel, F., Savard, M.-H., Savard, J., Quesnel, C., Hirose, K., Takahara, M., Mizuno, K., Sadachi, H., Nagashima, Y., Yada, Y., Cheung, C.-F., Lau, C., Lai, W., Sin, K., Tam, C., Hellgren, J., Omenaas, E., Gíslason, T., Jögi, R., Franklin, K., Torén, K., Wang, F., Kadono, M., Shigeta, M., Nakazawa, A., Ueda, M., Fukui, M., Hasegawa, G., Yoshikawa, T., de Niet, G., Tiemens, B., Lendemeijer, B., Hutschemaekers, G., Gauthier, A.-K., Chevrette, T., Chevrier, E., Bouvier, H., Parry, B., Meliska, C., Nowakowski, S., Lopez, A., Martinez, F., Sorenson, D., Lien, M. L., Lattova, Z., Maurovich-Horvat, E., Nia, S., Pollmächer, T., Poulin, J., Chouinard, S., Stip, E., Guillem, F., Venne, D., Caouette, M., Lamont, M.-E., Lázár, A., Lázár, Z., Bíró, A., Gyõri, M., Tárnok, Z., Prekop, C., Gádoros, J., Halász, P., Bódizs, R., Okun, M., Hanusa, B., Hall, M., Wisner, K., Pereira, M., Kumar, R. A. J. E. S. H., Macey, P. A. U. L., Woo, M. A. R. Y., Serber, S. T. A. C. Y., Valladares, E. D. W. I. N., Harper, R. E. B. E. C. C. A., Harper, R. O. N. A. L. D., Puttonen, S., Härmä, M., Vahtera, J., Kivimäki, M., Lamarche, L., Hemmeter, U. M., Thum, A., Rocamora, R., Giesler, M., Haag, A., Dodel, R., Krieg, J. C., Shechter, A., L’Esperance, P., Boivin, D. B., Vu, M.-T., and Richards, H.

Published
2007
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34. Hand pose estimation for movement evaluation in hand therapy

Author

Elui, VMC, Cejnog, LWX, de Campos, T, Goia, DN, and Cesar Jr, RM

Subjects
ddc: 610, hand tracking, 610 Medical sciences, Medicine, hand pose estimation, computer vision, depth images
Abstract

Objective: Hand tracking is a challenging problem that recently gained relevance with the development of cheap consumer-level depth cameras and virtual reality devices. We present a framework for dynamic evaluation of the movements of flexion, extension, abduction and aduction for patients with rheumatoid[for full text, please go to the a.m. URL], 14th Triennial Congress of the International Federation of Societies for Surgery of the Hand (IFSSH), 11th Triennial Congress of the International Federation of Societies for Hand Therapy (IFSHT), 11th Triennial Congress of the International Federation of Societies for Hand Therapy (IFSHT)

Published
2020
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35. Molecular characterizaion and core collection evaluation of Manihot esculenta Crantz

Author

COSTA, N. A., AZÊVEDO, H. S. F. da S., SILVA, L. M. da, CUNHA, E. F. M., SIVIERO, A., CAMPOS, T. de, NATHALIA ALMEIDA COSTA, Universidade Federal do Acre (Ufac), HELLEN SANDRA FREIRES DA SILVA AZÊVEDO, Rede Bionorte, LUCIELIO MANOEL DA SILVA, CPAF-AC, ELISA FERREIRA MOURA CUNHA, CPATU, AMAURI SIVIERO, CPAF-AC, and TATIANA DE CAMPOS, CPAF-AC.

Subjects
Fitomejoramiento, Marcador Genético, Amazonas, Manioc, Variación genetica, Melhoramento Genético Vegetal, Plant breeding, Acre, Microsatellite repeats, Método UPGMA, Bayesin analysis, Genetic variation, Método Neighbor-Joining, Análise bayesiana, Yuca, Marcador microssatélite, Heterocigosidad, Cassava, Heterozygosity, Roraima, Heterozigosidade, São Paulo, Manihot Esculenta, Repeticiones de microsatélite, Variação Genética, Mandioca
Abstract

Cassava is one of the most important subsistence crops in tropical regions. It is necessary to preserve and to know the genetic diversity existent for the adequate use of genetic resources. The evaluation of genetic diversity among genotypes results in information about potential parents in breeding programs, allows duplicates identification, and facilitates germplasm exchange between research institutions. The objective of this study was to characterize the genetic diversity of cassava accessions of North Brazil region. A total of 106 accessions were analyzed using ten microsatellite markers. The genetic parameters estimated were: expected heterozygosity (HE), observed heterozygosity (HO) and polymorphic information content (PIC). Clustering was performed using the UPGMA and Neighbor-Joining (NJ) method. Bayesian analysis, analysis of principal coordinates and identification of a core collection were also used. The ten loci amplified 8,40 alleles on average. The average heterozygosity estimates were: HE = 0.71, HO = 0.58 and PIC = 0.72. Genetic distances ranged from 0.158 to 0.908. Six (5,66%) accesses were redundant. Clustering and dispersion analysis didn?t differentiate bitter from sweet cassava, and there wasn?t correlation between groups and collect origin. The core collection consisted of 22 individuals that represented 94% of total allelic diversity and 20,75% of the base collection. The results indicate high dissimilarity between the accessions and allowed the detection of redundant genotypes, showing the use of genetic markers as informative tools for the management of collections. Made available in DSpace on 2021-04-05T15:34:15Z (GMT). No. of bitstreams: 1 27114.pdf: 1787946 bytes, checksum: 3f945f2531f273ae52eab1b419875ff8 (MD5) Previous issue date: 2020

Published
2020

36. A Modified protocol for total RNA isolation from forage peanuts

Author

OLIVEIRA, J. C. de, SILVA, C. C. da, SOUZA, A. P. de, CAMPOS, T. de, Jônatas Chagas de Oliveira, Universidade Federal do Acre (Ufac), Carla Cristina da Silva, Universidade Estadual de Campinas (Unicamp), Anete Pereira de Souza, Universidade Estadual de Campinas (Unicamp), and TATIANA DE CAMPOS, CPAF-AC.

Subjects
Ácido ribonucleico, Forage peanut, Amendoim forrageiro, Secondary metabolic, Forage legumes, Leguminosa Forrageira, Melhoramento Genético Vegetal, High quality, Qualidade, RNA extraction, Plant breeding, Arachis pintoi, Extracción de ARN, Rendimento, Cacahuetes forrajeros, RNA, Metabólico secundário, Extração, Alta calidad
Abstract

The development of specific protocols for extraction of high-quality RNA are key advances in molecular techniques for elucidating biological processes and mechanisms. The forage peanut has significant economic value for use in mixed pastures. However, it is difficult to extract high-quality RNA from forage peanuts due to high contents of tannins, polysaccharides, and other secondary metabolites. Here, it is described an efficient method for obtaining high-quality, high-yield total RNA that is usable in downstream transcriptome analysis. This modifications helped eliminate the problems associated with the presence of high concentrations of secondary metabolites in forage peanut leaves, and lacked signs of degradation. O desenvolvimento de protocolos específicos para extração de RNA de alta qualidade são avanços chave em técnicas moleculares para elucidar mecanismos e processos biológicos. O amendoim forrageiro tem significante valor econômico para uso em pastagens consorciadas. Entretanto, é difícil extrair RNA de alta qualidade de amendoim forrageiro devido aos altos conteúdos de taninos, polissacarídeos e outros metabólitos secundários. Aqui, descreve-se um eficiente método para obtenção de RNA total de alta qualidade e alto rendimento que é necessário para análises posteriores do transcriptoma. Essas modificações ajudaram a eliminar os problemas associados com a presença de altas concentrações de metabólitos secundários em folhas de amendoim forrageiro e sem sinais de degradação. Made available in DSpace on 2020-09-23T08:17:21Z (GMT). No. of bitstreams: 1 27028.pdf: 186639 bytes, checksum: 233e591a5ac7b84f235677cc93c713b8 (MD5) Previous issue date: 2020

Published
2020

39. An Aircraft-Based Upper Troposphere Lower Stratosphere O3, CO, and H2O Climatology for the Northern Hemisphere

Author

Tilmes, S, Pan, L. L, Hoor, P, Atlas, E, Avery, M. A, Campos, T, Christensen, L. E, Diskin, G. S, Gao, R.-S, Herman, R. L, Hinsta, E. J, Loewenstein, M, Lopez, J, Paige, M. E, Pittman, J. V, Podolske, J. R, Proffitt, M. R, Sachse, G. W, Schiller, C, Schlager, H, Smith, J, Spelten, N, Webster, C, Weinheimer, A, and Zondlo, M. A

Subjects
Meteorology And Climatology
Abstract

We present a climatology of O3, CO, and H2O for the upper troposphere and lower stratosphere (UTLS), based on a large collection of high ]resolution research aircraft data taken between 1995 and 2008. To group aircraft observations with sparse horizontal coverage, the UTLS is divided into three regimes: the tropics, subtropics, and the polar region. These regimes are defined using a set of simple criteria based on tropopause height and multiple tropopause conditions. Tropopause ]referenced tracer profiles and tracer ]tracer correlations show distinct characteristics for each regime, which reflect the underlying transport processes. The UTLS climatology derived here shows many features of earlier climatologies. In addition, mixed air masses in the subtropics, identified by O3 ]CO correlations, show two characteristic modes in the tracer ]tracer space that are a result of mixed air masses in layers above and below the tropopause (TP). A thin layer of mixed air (1.2 km around the tropopause) is identified for all regions and seasons, where tracer gradients across the TP are largest. The most pronounced influence of mixing between the tropical transition layer and the subtropics was found in spring and summer in the region above 380 K potential temperature. The vertical extent of mixed air masses between UT and LS reaches up to 5 km above the TP. The tracer correlations and distributions in the UTLS derived here can serve as a reference for model and satellite data evaluation

Published
2010
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40. Variability of Springtime Transpacific Pollution Transport During 2000-2006: The INTEX-5 Mission in the Context of Previous Years

Author

Pfister, G. G, Emmons, L. K, Edwards, D. P, Arellano, A, Sachse, G, and Campos, T

Subjects
Meteorology And Climatology
Abstract

We analyze the transport of pollution across the Pacific during the NASA INTEX-B (Intercontinental Chemical Transport Experiment Part 8) campaign in spring 2006 and examine how this year compares to the time period for 2000 through 2006. In addition to aircraft measurements of carbon monoxide (CO) collected during INTEX-B, we include in this study multi-year satellite retrievals of CO from the Measurements of Pollution in the Troposphere (MOPITT) instrument and simulations from the chemistry transport model MOZART-4. Model tracers are used to examine the contributions of different source regions and source types to pollution levels over the Pacific. Additional modeling studies are performed to separate the impacts of inter-annual variability in meteorology and .dynamics from changes in source strength. interannual variability in the tropospheric CO burden over the Pacific and the US as estimated from the MOPITT data range up to 7% and a somewhat smaller estimate (5%) is derived from the model. When keeping the emissions in the model constant between years, the year-to-year changes are reduced (2%), but show that in addition to changes in emissions, variable meteorological conditions also impact transpacific pollution transport. We estimate that about 113 of the variability in the tropospheric CO loading over the contiguous US is explained by changes in emissions and about 213 by changes in meteorology and transport. Biomass burning sources are found to be a larger driver for inter-annual variability in the CO loading compared to fossil and biofuel sources or photochemical CO production even though their absolute contributions are smaller. Source contribution analysis shows that the aircraft sampling during INTEX-B was fairly representative of the larger scale region, but with a slight bias towards higher influence from Asian contributions.

Published
2010

41. Brunelli D., Maia M., Ligi M., Bonatti E., Briais A., Campos T., Ceuleneer G., Cipriani A., Cuffaro M., Gregory E., Hamelin C., Jbara R., Kaczmarek M.-A., Lombardi F., Moreira S., Mougel B., Petracchini L., Puzenat V., Revillon S., Seyler M., Soltanmohammadi A., Verhoest L., Trivellato T. & Wang Z. - Cold spots at Mid Ocean Ridges help revealing mantle heterogeneity: a summary of the SMARTIES cruise in the Equatorial Atlantic

Author

Brunelli D., Maia M., Ligi M., Bonatti E., Briais A., Campos T., Ceuleneer G., Cipriani A., Cuffaro M., Gregory E., Hamelin C., Jbara R., Kaczmarek M.-A., Lombardi F., Moreira S., Mougel B., Petracchini L., Puzenat V., Revillon S., Seyler M., Soltanmohammadi A., Verhoest L., and Trivellato T. & Wang Z

Subjects
mantle heterogeneity, Mid Atlantic Ridge, mantle potential temperature
Abstract

The heterogeneity of the suboceanic mantle source is usually defined based on MORB lateral geochemical variability. However, tackling short-scale variability is partially hampered by the large extent of mixing occurring during melt extraction and magma chamber processes. We identified a singular region of the Mid Atlantic Ridge at the eastern Romanche Ridge-Transform Intersection (Equatorial Atlantic) characterized by an extreme lateral thermal gradient. Cooling of the upwelling mantle is here induced by heat transfer to a ca. 50 Ma old plate fronting the ridge-transform intersection. Cooling of the plate edge affects the upper mantle for the whole range where melting usually occurs (30-80 km bsl). The resulting ridge axis consequently shows a lateral gradient in magma productivity and composition (Bonatti et al., 2001 and references therein). MORBs erupted at the ridge centre give rise to a "normal" 5 km thick magmatic crust. Moving to the axial tip magmatism diminishes in volume till zero and progressively increases its alkaline character along with the compositional variability revealing the short-scale heterogeneity of the mantle source (Ligi et al., 2005). This thermal and tectonic configuration represents a regional scale natural experiment where to test the effect of varying mantle potential temperature on a given mantle source. Melting a heterogeneous mantle has profound implications on the km-scale heat transfer because of the differential onset of melting of variably fertile lithologies (Brunelli et al., 2018). Here, we will present the results of the upcoming French-Italian SMARTIES expedition, taking place in July-August 2019. We will present a new high-resolution bathymetric coverage of the RTI and peculiar tectonic features where magma is nearly absent accompanied by direct submarine observations and sampling from Nautile dives.

Published
2019

42. Measurements of Pollution In The Troposphere (MOPITT) Validation through 2006

Author

Emmons, L. K, Edwards, D. P, Deeter, M. N, Gille, J. C, Campos, T, Nedelec, P, Novelli, P, and Sachse, G

Subjects
Earth Resources And Remote Sensing
Abstract

Comparisons of aircraft measurements of carbon monoxide (CO) to the retrievals of CO using observations from the Measurements of Pollution in The Troposphere (MOPITT) instrument onboard the Terra satellite are presented. Observations made as part of the NASA INTEX-B and NSF MIRAGE field campaigns during March May 2006 are used to validate the MOPITT CO retrievals, along with routine samples from 2001 through 2006 from NOAA and the MOZAIC measurements from commercial aircraft. A significant positive bias, around 20% for total column CO, in MOPITT CO was found in the comparison to in situ measurements during 2006. Comparisons to the long-term records of measurements from NOAA and MOZAIC revealed an increasing bias in the V3 MOPITT CO retrievals over time. The impact of an instrumental drift is illustrated through retrieval simulations.

Published
2009

43. Emissions from Biomass Burning in the Yucatan

Author

Yokelson, R, Crounse, J. D, DeCarlo, P. F, Karl, T, Urbanski, S, Atlas, E, Campos, T, Shinozuka, Y, Kapustin, V, Clarke, A. D, Weinheimer, A, Knapp, D. J, Montzka, D. D, Holloway, J, Weibring, P, Flocke, F, Zheng, W, Toohey, D, Wennberg, P. O, Wiedinmyer, C, Mauldin, L, Fried, A, Richter, D, Walega, J, and Jimenez, J. L

Subjects
Environment Pollution
Abstract

In March 2006 two instrumented aircraft made the first detailed field measurements of biomass burning (BB) emissions in the Northern Hemisphere tropics as part of the MILAGRO project. The aircraft were the National Center for Atmospheric Research C-130 and a University of Montana/US Forest Service Twin Otter. The initial emissions of up to 49 trace gas or particle species were measured from 20 deforestation and crop residue fires on the Yucatan peninsula. This included two trace gases useful as indicaters of BB (HCN and acetonitrile) and several rarely, or never before, measured species: OH, peroxyacetic acid, propanoic acid, hydrogen peroxide, methane sulfonic acid, and sulfuric acid. Crop residue fires emitted more organic acids and ammonia than deforestation fires, but the emissions from the main fire types were otherwise fairly similar. The Yucatan fires emitted unusually amounts of SO2 and particle chloride, likely due to a strong marine influence on the peninsula.

Published
2009

46. Evaluating Model Performance of an Ensemble-based Chemical Data Assimilation System During INTEX-B Field Mission

Author

Arellano, A. F., Jr, Raeder, K, Anderson, J. L, Hess, P. G, Emmons, L. K, Edwards, D. P, Pfister, G. G, Campos, T. L, and Sachse, G. W

Subjects
Meteorology And Climatology
Abstract

We present a global chemical data assimilation system using a global atmosphere model, the Community Atmosphere Model (CAM3) with simplified chemistry and the Data Assimilation Research Testbed (DART) assimilation package. DART is a community software facility for assimilation studies using the ensemble Kalman filter approach. Here, we apply the assimilation system to constrain global tropospheric carbon monoxide (CO) by assimilating meteorological observations of temperature and horizontal wind velocity and satellite CO retrievals from the Measurement of Pollution in the Troposphere (MOPITT) satellite instrument. We verify the system performance using independent CO observations taken on board the NSFINCAR C-130 and NASA DC-8 aircrafts during the April 2006 part of the Intercontinental Chemical Transport Experiment (INTEX-B). Our evaluations show that MOPITT data assimilation provides significant improvements in terms of capturing the observed CO variability relative to no MOPITT assimilation (i.e. the correlation improves from 0.62 to 0.71, significant at 99% confidence). The assimilation provides evidence of median CO loading of about 150 ppbv at 700 hPa over the NE Pacific during April 2006. This is marginally higher than the modeled CO with no MOPITT assimilation (-140 ppbv). Our ensemble-based estimates of model uncertainty also show model overprediction over the source region (i.e. China) and underprediction over the NE Pacific, suggesting model errors that cannot be readily explained by emissions alone. These results have important implications for improving regional chemical forecasts and for inverse modeling of CO sources and further demonstrate the utility of the assimilation system in comparing non-coincident measurements, e.g. comparing satellite retrievals of CO with in-situ aircraft measurements. The work described above also brought to light several short-comings of the data assimilation approach for CO profiles. Because of the limited vertical resolution of the measurement, the retrievals at different altitudes are correlated which can lead to problems with numerical error and overall efficiency. This has resulted in a manuscript that is about to be submitted to JGR

Published
2007

47. Emissions from Forest Fires near Mexico City

Author

Yokelson, R, Urbanski, S, Atlas, E, Toohey, D, Alvarado, E, Crounse, J, Wennberg, P, Fisher, M, Wold, C, Campos, T, Adachi, K, Buseck, P. R, and Hao, W. M

Subjects
Environment Pollution
Abstract

The emissions of NOx (defined as NO (nitric oxide) + NO2 (nitrogen dioxide)) and hydrogen cyanide (HCN), per unit amount of fuel burned, from fires in the pine forests that dominate the mountains surrounding Mexico City (MC) are about 2 times higher than normally observed for forest burning. The ammonia (NH3) emissions are about average for forest burning. The upper limit for the mass ratio of NOX to volatile organic compounds (VOC) for these MC-area mountain fires was approximately 0.38, which is similar to the NOx/VOC ratio in the MC urban area emissions inventory of 0.34, but much larger than the NOx/VOC ratio for tropical forest fires in Brazil (approximately 0.068). The nitrogen enrichment in the fire emissions may be due to deposition of nitrogen-containing pollutants in the outflow from the MC urban area. This effect may occur worldwide wherever biomass burning coexists with large urban areas (e.g. the tropics, southeastern US, Los Angeles Basin). The molar emission ratio of HCN to carbon monoxide (CO) for the mountain fires was 0.012 +/- 0.007, which is 2-9 times higher than widely used literature values for biomass burning. The ambient molar ratio HCN/CO in the MC-area outflow is about 0.003 +/- 0.0003. Thus, if only mountain fires emit significant amounts of HCN, these fires may be contributing about 25% of the CO production in the MCarea (approximately 98-100 W and 19-20 N). Comparing the PM10/CO and PM2.5/CO mass ratios in the MC Metropolitan Area emission inventory (0.01 15 and 0.0037) to the PM1/CO mass ratio for the mountain fires (0.133) then suggests that these fires could produce as much as approximately 79-92% of the primary fine particle mass generated in the MC-area. Considering both the uncertainty in the HCN/CO ratios and secondary aerosol formation in the urban and fire emissions implies that about 50 +/- 30% of the "aged" fine particle mass in the March 2006 MC-area outflow could be from these fires.

Published
2007
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48. Fast Airborne Aerosol Size and Chemistry Measurements with the High Resolution Aerosol Mass Spectrometer during the MILAGRO Campaign

Author

DeCarlo, P. F, Dunlea, E. J, Kimmel, J. R, Aiken, A. C, Sueper, D, Crounse, J, Wennberg, P. O, Emmons, L, Shinozuka, Y, Clarke, A, Zhou, J, Tomlinson, J, Collins,D. R, Knapp, D, Weinheimer, A. J, Montzka,D. D, Campos,T, and Jimenez, J. L

Subjects
Environment Pollution
Abstract

The concentration, size, and composition of non-refractory submicron aerosol (NR-PM(sub l)) was measured over Mexico City and central Mexico with a High-Resolution Time-of-Flight Aerosol Mass Spectrometer (HR-ToF-AMS) onboard the NSF/NCAR C-130 aircraft as part of the MILAGRO field campaign. This was the first aircraft deployment of the HR-ToF-AMS. During the campaign the instrument performed very well, and provided 12 s data. The aerosol mass from the AMS correlates strongly with other aerosol measurements on board the aircraft. Organic aerosol (OA) species dominate the NR-PM(sub l) mass. OA correlates strongly with CO and HCN indicating that pollution (mostly secondary OA, SOA) and biomass burning (BB) are the main OA sources. The OA to CO ratio indicates a typical value for aged air of around 80 microg/cubic m (STP) ppm(exp -1). This is within the range observed in outflow from the Northeastern US, which could be due to a compensating effect between higher BB but lower biogenic VOC emissions during this study. The O/C atomic ratio for OA is calculated from the HR mass spectra and shows a clear increase with photochemical age, as SOA forms rapidly and quickly overwhelms primary urban OA, consistent with Volkamer et al. (2006) and Kleinman et al. (2008). The stability of the OA/CO while O/C increases with photochemical age implies a net loss of carbon from the OA. BB OA is marked by signals at m/z 60 and 73, and also by a signal enhancement at large m/z indicative of larger molecules or more resistance to fragmentation. The main inorganic components show different spatial patterns and size distributions. Sulfate is regional in nature with clear volcanic and petrochemical/power plant sources, while the urban area is not a major regional source for this species. Nitrate is enhanced significantly in the urban area and immediate outflow, and is strongly correlated with CO indicating a strong urban source. The importance of nitrate decreases with distance from the city likely due to evaporation. BB does not appear to be a strong source of nitrate despite its high emissions of nitrogen oxides, presumably due to low ammonia emissions. NR-chloride often correlates with HCN indicating a fire source, although other sources likely contribute as well. This is the first aircraft study of the regional evolution of aerosol chemistry from a tropical megacity.

Published
2007

49. Total Observed Organic Carbon (TOOC): A Synthesis of North American Observations

Author

Heald, C. L, Goldstein, A. H, Allan, J. D, Aiken, A. C, Apel, E, Atlas, E. L, Baker, A. K, Bates, T. S, Beyersdorf, A. J, Blake, D. R, Campos, T, Coe, H, Crounse, J. D, DeCarlo, P. F, de Gouw, J. A, Dunlea, E. J, Flocke, F. M, Fried, A, Goldan, P, Griffin, R. J, Herndon, S. C, Holloway, J. S, Holzinger, R, Jimenez, J. L, and Junkermann, W

Subjects
Environment Pollution
Abstract

Measurements of organic carbon compounds in both the gas and particle phases made upwind, over and downwind of North America are synthesized to examine the total observed organic carbon (TOOC) in the atmosphere over this region. These include measurements made aboard the NOAA WP-3 and BAe-146 aircraft, the NOAA research vessel Ronald H. Brown, and at the Thompson Farm and Chebogue Point surface sites during the summer 2004 ICARTT campaign. Both winter and summer 2002 measurements during the Pittsburgh Air Quality Study are also included. Lastly, the spring 2002 observations at Trinidad Head, CA, surface measurements made in March 2006 in Mexico City and coincidentally aboard the C-130 aircraft during the MILAGRO campaign and later during the IMPEX campaign off the northwestern United States are incorporated. Concentrations of TOOC in these datasets span more than two orders of magnitude. The daytime mean TOOC ranges from 4.0 to 456 microg C/cubic m from the cleanest site (Trinidad Head) to the most polluted (Mexico City). Organic aerosol makes up 3-17% of this mean TOOC, with highest fractions reported over the northeastern United States, where organic aerosol can comprise up to 50% of TOOC. Carbon monoxide concentrations explain 46 to 86% of the variability in TOOC, with highest TOOC/CO slopes in regions with fresh anthropogenic influence, where we also expect the highest degree of mass closure for TOOC. Correlation with isoprene, formaldehyde, methyl vinyl ketone and methacrolein also indicates that biogenic activity contributes substantially to the variability of TOOC, yet these tracers of biogenic oxidation sources do not explain the variability in organic aerosol observed over North America. We highlight the critical need to develop measurement techniques to routinely detect total gas phase VOCs, and to deploy comprehensive suites of TOOC instruments in diverse environments to quantify the ambient evolution of organic carbon from source to sink.

Published
2007

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