94 results on '"Sikoparija, Branko"'
Search Results
2. European pollen reanalysis, 1980–2022, for alder, birch, and olive
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Sofiev, Mikhail, Palamarchuk, Julia, Kouznetsov, Rostislav, Abramidze, Tamuna, Adams-Groom, Beverley, Antunes, Célia M., Ariño, Arturo H., Bastl, Maximilian, Belmonte, Jordina, Berger, Uwe E., Bonini, Maira, Bruffaerts, Nicolas, Buters, Jeroen, Cariñanos, Paloma, Celenk, Sevcan, Ceriotti, Valentina, Charalampopoulos, Athanasios, Clewlow, Yolanda, Clot, Bernard, Dahl, Aslog, Damialis, Athanasios, De Linares, Concepción, De Weger, Letty A., Dirr, Lukas, Ekebom, Agneta, Fatahi, Yalda, Fernández González, María, Fernández González, Delia, Fernández-Rodríguez, Santiago, Galán, Carmen, Gedda, Björn, Gehrig, Regula, Geller Bernstein, Carmi, Gonzalez Roldan, Nestor, Grewling, Lukasz, Hajkova, Lenka, Hänninen, Risto, Hentges, François, Jantunen, Juha, Kadantsev, Evgeny, Kasprzyk, Idalia, Kloster, Mathilde, Kluska, Katarzyna, Koenders, Mieke, Lafférsová, Janka, Leru, Poliana Mihaela, Lipiec, Agnieszka, Louna-Korteniemi, Maria, Magyar, Donát, Majkowska-Wojciechowska, Barbara, Mäkelä, Mika, Mitrovic, Mirjana, Myszkowska, Dorota, Oliver, Gilles, Östensson, Pia, Pérez-Badia, Rosa, Piotrowska-Weryszko, Krystyna, Prank, Marje, Przedpelska-Wasowicz, Ewa Maria, Pätsi, Sanna, Rajo, F. Javier Rodríguyez, Ramfjord, Hallvard, Rapiejko, Joanna, Rodinkova, Victoria, Rojo, Jesús, Ruiz-Valenzuela, Luis, Rybnicek, Ondrej, Saarto, Annika, Sauliene, Ingrida, Seliger, Andreja Kofol, Severova, Elena, Shalaboda, Valentina, Sikoparija, Branko, Siljamo, Pilvi, Soares, Joana, Sozinova, Olga, Stangel, Anders, Stjepanović, Barbara, Teinemaa, Erik, Tyuryakov, Svyatoslav, Trigo, M. Mar, Uppstu, Andreas, Vill, Mart, Vira, Julius, Visez, Nicolas, Vitikainen, Tiina, Vokou, Despoina, Weryszko-Chmielewska, Elżbieta, and Karppinen, Ari
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- 2024
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3. The role of automatic pollen and fungal spore monitoring across major end-user domains
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Tummon, Fiona, Adams-Groom, Beverley, Antunes, Célia M., Bruffaerts, Nicolas, Buters, Jeroen, Cariñanos, Paloma, Celenk, Sevcan, Choël, Marie, Clot, Bernard, Cristofori, Antonella, Crouzy, Benoît, Damialis, Athanasios, Fernández, Alberto Rodríguez, González, Délia Fernández, Galán, Carmen, Gedda, Björn, Gehrig, Regula, Gonzalez-Alonso, Monica, Gottardini, Elena, Gros-Daillon, Jules, Hajkova, Lenka, O’Connor, David, Östensson, Pia, Oteros, Jose, Pauling, Andreas, Pérez-Badia, Rosa, Rodinkova, Victoria, Rodríguez-Rajo, F. Javier, Ribeiro, Helena, Sauliene, Ingrida, Sikoparija, Branko, Skjøth, Carsten Ambelas, Spanu, Antonio, Sofiev, Mikhail, Sozinova, Olga, Srnec, Lidija, Visez, Nicolas, and de Weger, Letty A.
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- 2024
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4. Towards standardisation of automatic pollen and fungal spore monitoring: best practises and guidelines
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Tummon, Fiona, Bruffaerts, Nicolas, Celenk, Sevcan, Choël, Marie, Clot, Bernard, Crouzy, Benoît, Galán, Carmen, Gilge, Stefan, Hajkova, Lenka, Mokin, Vitalii, O’Connor, David, Rodinkova, Victoria, Sauliene, Ingrida, Sikoparija, Branko, Sofiev, Mikhail, Sozinova, Olga, Tesendic, Danijela, and Vasilatou, Konstantina
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- 2024
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5. Automatic detection of airborne pollen: an overview
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Buters, Jeroen, Clot, Bernard, Galán, Carmen, Gehrig, Regula, Gilge, Stefan, Hentges, François, O’Connor, David, Sikoparija, Branko, Skjoth, Carsten, Tummon, Fiona, Adams-Groom, Beverley, Antunes, Célia M., Bruffaerts, Nicolas, Çelenk, Sevcan, Crouzy, Benoit, Guillaud, Géraldine, Hajkova, Lenka, Seliger, Andreja Kofol, Oliver, Gilles, Ribeiro, Helena, Rodinkova, Victoria, Saarto, Annika, Sauliene, Ingrida, Sozinova, Olga, and Stjepanovic, Barbara
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- 2024
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6. Geographical origin authentication of honey produced in the region of Rtanj Mountain (Serbia)
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Sakač, Marijana, Novaković, Aleksandra, Ikonić, Predrag, Peulić, Tatjana, Škrobot, Dubravka, Radišić, Predrag, Šikoparija, Branko, Jovanov, Pavle, Maravić, Nikola, and Marić, Aleksandar
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- 2024
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7. A temporally and spatially explicit, data-driven estimation of airborne ragweed pollen concentrations across Europe
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Makra, László, Matyasovszky, István, Tusnády, Gábor, Ziska, Lewis H., Hess, Jeremy J., Nyúl, László G., Chapman, Daniel S., Coviello, Luca, Gobbi, Andrea, Jurman, Giuseppe, Furlanello, Cesare, Brunato, Mauro, Damialis, Athanasios, Charalampopoulos, Athanasios, Müller-Schärer, Heinz, Schneider, Norbert, Szabó, Bence, Sümeghy, Zoltán, Páldy, Anna, Magyar, Donát, Bergmann, Karl-Christian, Deák, Áron József, Mikó, Edit, Thibaudon, Michel, Oliver, Gilles, Albertini, Roberto, Bonini, Maira, Šikoparija, Branko, Radišić, Predrag, Josipović, Mirjana Mitrović, Gehrig, Regula, Severova, Elena, Shalaboda, Valentina, Stjepanović, Barbara, Ianovici, Nicoleta, Berger, Uwe, Seliger, Andreja Kofol, Rybníček, Ondřej, Myszkowska, Dorota, Dąbrowska-Zapart, Katarzyna, Majkowska-Wojciechowska, Barbara, Weryszko-Chmielewska, Elzbieta, Grewling, Łukasz, Rapiejko, Piotr, Malkiewicz, Malgorzata, Šaulienė, Ingrida, Prykhodo, Olexander, Maleeva, Anna, Rodinkova, Victoria, Palamarchuk, Olena, Ščevková, Jana, and Bullock, James M.
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- 2023
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8. Towards European automatic bioaerosol monitoring: Comparison of 9 automatic pollen observational instruments with classic Hirst-type traps
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Maya-Manzano, José M., Tummon, Fiona, Abt, Reto, Allan, Nathan, Bunderson, Landon, Clot, Bernard, Crouzy, Benoît, Daunys, Gintautas, Erb, Sophie, Gonzalez-Alonso, Mónica, Graf, Elias, Grewling, Łukasz, Haus, Jörg, Kadantsev, Evgeny, Kawashima, Shigeto, Martinez-Bracero, Moises, Matavulj, Predrag, Mills, Sophie, Niederberger, Erny, Lieberherr, Gian, Lucas, Richard W., O'Connor, David J., Oteros, Jose, Palamarchuk, Julia, Pope, Francis D., Rojo, Jesus, Šaulienė, Ingrida, Schäfer, Stefan, Schmidt-Weber, Carsten B., Schnitzler, Martin, Šikoparija, Branko, Skjøth, Carsten A., Sofiev, Mikhail, Stemmler, Tom, Triviño, Marina, Zeder, Yanick, and Buters, Jeroen
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- 2023
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9. Why should we care about high temporal resolution monitoring of bioaerosols in ambient air?
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Smith, Matt, Matavulj, Predrag, Mimić, Gordan, Panić, Marko, Grewling, Łukasz, and Šikoparija, Branko
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- 2022
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10. Classification accuracy and compatibility across devices of a new Rapid-E+ flow cytometer.
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Sikoparija, Branko, Matavulj, Predrag, Simovic, Isidora, Radisic, Predrag, Brdar, Sanja, Minic, Vladan, Tesendic, Danijela, Kadantsev, Evgeny, Palamarchuk, Julia, and Sofiev, Mikhail
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MACHINE learning , *POLLEN , *AIR shows , *FLUORESCENCE , *AIR flow - Abstract
The study evaluated a new model of a Plair SA airflow cytometer, Rapid-E + , and assessed its suitability for airborne pollen monitoring within operational networks. Key features of the new model are compared with the previous one, Rapid-E. A machine learning algorithm is constructed and evaluated for (i) classification of reference pollen types in laboratory conditions and (ii) monitoring in real-life field campaigns. The second goal of the study was to evaluate the device usability in forthcoming monitoring networks, which would require similarity and reproducibility of the measurement signal across devices. We employed three devices and analysed (dis-)similarities of their measurements in laboratory conditions. The lab evaluation showed similar recognition performance to that of Rapid-E, but field measurements in conditions when several pollen types were present in the air simultaneously showed notably lower agreement of Rapid-E + with manual Hirst-type observations than those of the older model. An exception was the total-pollen measurements. Comparison across the Rapid-E + devices revealed noticeable differences in fluorescence measurements between the three devices tested. As a result, application of the recognition algorithm trained on the data from one device to another led to large errors. The study confirmed the potential of the fluorescence measurements for discrimination between different pollen classes, but each instrument needed to be trained individually to achieve acceptable skills. The large uncertainty of fluorescence measurements and their variability between different devices need to be addressed to improve the device usability. [ABSTRACT FROM AUTHOR]
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- 2024
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11. Classification accuracy and compatibility across devices of a new Rapid-E+ flow cytometer
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Sikoparija, Branko, primary, Matavulj, Predrag, additional, Simovic, Isidora, additional, Radisic, Predrag, additional, Brdar, Sanja, additional, Minic, Vladan, additional, Tesendic, Danijela, additional, Kadantsev, Evgeny, additional, Palamarchuk, Julia, additional, and Sofiev, Mikhail, additional
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- 2024
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12. Integration of in situ and satellite data for top-down mapping of Ambrosia infection level
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Lugonja, Predrag, Brdar, Sanja, Simović, Isidora, Mimić, Gordan, Palamarchuk, Yuliia, Sofiev, Mikhail, and Šikoparija, Branko
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- 2019
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13. Artificial neural networks can be used for Ambrosia pollen emission parameterization in COSMO-ART
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Burki, Charlotte, Šikoparija, Branko, Thibaudon, Michel, Oliver, Gilles, Magyar, Donat, Udvardy, Orsolya, Leelőssy, Ádám, Charpilloz, Christophe, and Pauling, Andreas
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- 2019
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14. Explainable AI for unveiling deep learning pollen classification model based on fusion of scattered light patterns and fluorescence spectroscopy
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Brdar, Sanja, Panic, Marko, Matavulj, Predrag, Stanković, Mira, Bartolić, Dragana, Sikoparija, Branko, Brdar, Sanja, Panic, Marko, Matavulj, Predrag, Stanković, Mira, Bartolić, Dragana, and Sikoparija, Branko
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Pollen monitoring have become data-intensive in recent years as real-time detectors are deployed to classify airborne pollen grains. Machine learning models with a focus on deep learning, have an essential role in the pollen classifcation task. Within this study we developed an explainable framework to unveil a deep learning model for pollen classifcation. Model works on data coming from single particle detector (Rapid-E) that records for each particle optical fngerprint with scattered light and laser induced fuorescence. Morphological properties of a particle are sensed with the light scattering process, while chemical properties are encoded with fuorescence spectrum and fuorescence lifetime induced by high-resolution laser. By utilizing these three data modalities, scattering, spectrum, and lifetime, deep learning-based models with millions of parameters are learned to distinguish diferent pollen classes, but a proper understanding of such a black-box model decisions demands additional methods to employ. Our study provides the frst results of applied explainable artifcial intelligence (xAI) methodology on the pollen classifcation model. Extracted knowledge on the important features that attribute to the predicting particular pollen classes is further examined from the perspective of domain knowledge and compared to available reference data on pollen sizes, shape, and laboratory spectrofuorometer measurements.
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- 2023
15. Using Front-Face Fluorescence Spectroscopy and Biochemical Analysis of Honey to Assess a Marker for the Level of Varroa destructor Infestation of Honey Bee (Apis mellifera) Colonies
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Stanković, Mira, Prokopijević, Miloš, Sikoparija, Branko, Nedic, Nebojsa, Andric, Filip, Natalija, Polović, Natić, Maja, Radotić, Ksenija, Stanković, Mira, Prokopijević, Miloš, Sikoparija, Branko, Nedic, Nebojsa, Andric, Filip, Natalija, Polović, Natić, Maja, and Radotić, Ksenija
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Varroa destructor is a parasitic mite responsible for the loss of honey bee (Apis mellifera) colonies. This study aimed to find a promising marker in honey for the bee colony infestation level using fluorescence spectroscopy and biochemical analyses. We examined whether the parameters of the honey samples’ fluorescence spectra and biochemical parameters, both related to proteins and phenolics, may be connected with the level of honey bee colonies’ infestation. The infestation level was highly positively correlated with the catalase activity in honey (r = 0.936). Additionally, the infestation level was positively correlated with the phenolic spectral component (r = 0.656), which was tentatively related to the phenolics in honey. No correlation was found between the diastase activity in honey and the colonies’ infestation level. The results indicate that the catalase activity in honey and the PFC1 spectral component may be reliable markers for the V. destructor infestation level of the colonies. The obtained data may be related to the honey yield obtained from the apiaries.
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- 2023
16. Biogeographical estimates of allergenic pollen transport over regional scales: Common ragweed and Szeged, Hungary as a test case
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Makra, László, Matyasovszky, István, Tusnády, Gábor, Wang, Yaqiang, Csépe, Zoltán, Bozóki, Zoltán, Nyúl, László G., Erostyák, János, Bodnár, Károly, Sümeghy, Zoltán, Vogel, Heike, Pauling, Andreas, Páldy, Anna, Magyar, Donát, Mányoki, Gergely, Bergmann, Karl-Christian, Bonini, Maira, Šikoparija, Branko, Radišić, Predrag, Gehrig, Regula, Seliger, Andreja Kofol, Stjepanović, Barbara, Rodinkova, Victoria, Prikhodko, Alexander, Maleeva, Anna, Severova, Elena, Ščevková, Jana, Ianovici, Nicoleta, Peternel, Renata, and Thibaudon, Michel
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- 2016
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17. Influence of Meteorological Variables and Air Pollutants on Measurements from Automatic Pollen Sampling Devices
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Gonzalez-Alonso, Monica, primary, Oteros, Jose, additional, Widmann, Magda, additional, Maya-Manzano, José M., additional, Skjøth, Carsten Ambelas, additional, Grewling, Dr. Łukasz, additional, O´Connor, David, additional, Sofiev, Mikhail, additional, Tummon, Fiona, additional, Crouzy, Benoit, additional, Buters, Jeroen, additional, Kadantsev, Evgeny, additional, Palamarchuck, yulia, additional, Martínez-Bracero, Moisés, additional, Pope, Francis, additional, Mills, Sophie A., additional, Sikoparija, Branko, additional, Matavuli, Pedrag, additional, Schmidt-Weber, Carsten, additional, and Ørby, Pia, additional
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- 2023
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18. Monitoring, Modelling and Forecasting of the Pollen Season
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Scheifinger, Helfried, Belmonte, Jordina, Buters, Jeroen, Celenk, Sevcan, Damialis, Athanasios, Dechamp, Chantal, García-Mozo, Herminia, Gehrig, Regula, Grewling, Lukasz, Halley, John M., Hogda, Kjell-Arild, Jäger, Siegfried, Karatzas, Kostas, Karlsen, Stein-Rune, Koch, Elisabeth, Pauling, Andreas, Peel, Roz, Sikoparija, Branko, Smith, Matt, Galán-Soldevilla, Carmen, Thibaudon, Michel, Vokou, Despina, de Weger, Letty A., Sofiev, Mikhail, editor, and Bergmann, Karl-Christian, editor
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- 2013
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19. The Onset, Course and Intensity of the Pollen Season
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Dahl, Åslög, Galán, Carmen, Hajkova, Lenka, Pauling, Andreas, Sikoparija, Branko, Smith, Matt, Vokou, Despoina, Sofiev, Mikhail, editor, and Bergmann, Karl-Christian, editor
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- 2013
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20. Pollen Sources
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Skjøth, Carsten Ambelas, Šikoparija, Branko, Jäger, Siegfried, EAN-Network, Sofiev, Mikhail, editor, and Bergmann, Karl-Christian, editor
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- 2013
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21. Towards standardisation of automatic pollen and fungal spore monitoring: best practises and guidelines
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Tummon, Fiona, primary, Bruffaerts, Nicolas, additional, Celenk, Sevcan, additional, Choël, Marie, additional, Clot, Bernard, additional, Crouzy, Benoît, additional, Galán, Carmen, additional, Gilge, Stefan, additional, Hajkova, Lenka, additional, Mokin, Vitalii, additional, O’Connor, David, additional, Rodinkova, Victoria, additional, Sauliene, Ingrida, additional, Sikoparija, Branko, additional, Sofiev, Mikhail, additional, Sozinova, Olga, additional, Tesendic, Danijela, additional, and Vasilatou, Konstantina, additional
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- 2022
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22. Ragweed pollen source inventory for France – The second largest centre of Ambrosia in Europe
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Thibaudon, Michel, Šikoparija, Branko, Oliver, Gilles, Smith, Matt, and Skjøth, Carsten A.
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- 2014
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23. An operational model for forecasting ragweed pollen release and dispersion in Europe
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Prank, Marje, Chapman, Daniel S., Bullock, James M., Belmonte, Jordina, Berger, Uwe, Dahl, Aslog, Jäger, Siegfried, Kovtunenko, Irina, Magyar, Donát, Niemelä, Sami, Rantio-Lehtimäki, Auli, Rodinkova, Viktoria, Sauliene, Ingrida, Severova, Elena, Sikoparija, Branko, and Sofiev, Mikhail
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- 2013
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24. Automatic detection of airborne pollen: an overview
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Buters, Jeroen, primary, Clot, Bernard, additional, Galán, Carmen, additional, Gehrig, Regula, additional, Gilge, Stefan, additional, Hentges, François, additional, O’Connor, David, additional, Sikoparija, Branko, additional, Skjoth, Carsten, additional, Tummon, Fiona, additional, Adams-Groom, Beverley, additional, Antunes, Célia M., additional, Bruffaerts, Nicolas, additional, Çelenk, Sevcan, additional, Crouzy, Benoit, additional, Guillaud, Géraldine, additional, Hajkova, Lenka, additional, Seliger, Andreja Kofol, additional, Oliver, Gilles, additional, Ribeiro, Helena, additional, Rodinkova, Victoria, additional, Saarto, Annika, additional, Sauliene, Ingrida, additional, Sozinova, Olga, additional, and Stjepanovic, Barbara, additional
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- 2022
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25. Melissopalynology analysis, determination of physicochemical parameters, sugars and phenolics in Maltese honey collected in different seasons
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Bugeja, Douglas, primary, Nesovic, Milica, additional, Sikoparija, Branko, additional, Radisic, Predrag, additional, Tosti, Tomislav, additional, Trifkovic, Jelena, additional, Russi, Luigi, additional, Attard, Everaldo, additional, Tesic, Zivoslav, additional, and Gasic, Uros, additional
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- 2022
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26. Assessment of real-time bioaerosol particle counters using reference chamber experiments
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Lieberherr, Gian, primary, Auderset, Kevin, additional, Calpini, Bertrand, additional, Clot, Bernard, additional, Crouzy, Benoît, additional, Gysel-Beer, Martin, additional, Konzelmann, Thomas, additional, Manzano, José, additional, Mihajlovic, Andrea, additional, Moallemi, Alireza, additional, O'Connor, David, additional, Sikoparija, Branko, additional, Sauvageat, Eric, additional, Tummon, Fiona, additional, and Vasilatou, Konstantina, additional
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- 2021
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27. A method for producing airborne pollen source inventories: An example of Ambrosia (ragweed) on the Pannonian Plain
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Skjøth, Carsten A., Smith, Matt, Šikoparija, Branko, Stach, Alicja, Myszkowska, Dorota, Kasprzyk, Idalia, Radišić, Predrag, Stjepanović, Barbara, Hrga, Ivana, Apatini, Dóra, Magyar, Donát, Páldy, Anna, and Ianovici, Nicoleta
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- 2010
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28. Comment on bg-2021-162
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Sikoparija, Branko, primary
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- 2021
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29. The need for Pan‐European automatic pollen and fungal spore monitoring: A stakeholder workshop position paper
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Tummon, Fiona, primary, Arboledas, Lucas Alados, additional, Bonini, Maira, additional, Guinot, Benjamin, additional, Hicke, Martin, additional, Jacob, Christophe, additional, Kendrovski, Vladimir, additional, McCairns, William, additional, Petermann, Eric, additional, Peuch, Vincent‐Henri, additional, Pfaar, Oliver, additional, Sicard, Michaël, additional, Sikoparija, Branko, additional, and Clot, Bernard, additional
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- 2021
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30. Higher airborne pollen concentrations correlated with increased SARS-CoV-2 infection rates, as evidenced from 31 countries across the globe
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Damialis, Athanasios, Gilles, Stefanie, Sofiev, Mikhail, Sofieva, Viktoria, Kolek, Franziska, Bayr, Daniela, Plaza, Maria P., Leier-Wirtz, Vivien, Kaschuba, Sigrid, Ziska, Lewis H., Bielory, Leonard, Makra, László, del Mar Trigo, Maria, Traidl-Hoffmann, Claudia, Oliver, Gilles, Pham-Thi, Nhân, Thibaudon, Michel, Arino, Arturo H., Belmonte, Jordina, Cervigon Morales, Patricia, De Linares, Concepción, Fernández, Delia, Fernández-Rodriguez, Santiago, Gabaldón Arguisuelas, Antonia, Galán, Carmen, González-Alonso, Mónica, Lara, Beatriz, Moreno Grau, José María, Oteros, José, Pérez-Badia, Rosa, Pérez-De-Zabalza, Anabel, Picornell, Antonio, Recio, Marta, Robles, Estrella, Rodríguez-Fernández, Alberto, Rodríguez-Rajo, F. Javier, Rojo, Jesús, Ruiz Valenzuela, Luis, Bergmann, Karl Christian, Werchan, Barbora, Werchan, Matthias, Buters, Jeroen T.M., Bastl, Maximilian, Dunker, Susanne, Hornick, Thomas, González Roldán, Nestor, Gilge, Stefan, Clot, Bernard, Finemann, Stanley, Ford, Linda, Gomez, Robert Anthony, Kamboj, Sanjay, Wilhelm, Wayne, Beggs, Paul J., Burton, Pamela, Davies, Janet M., Haberle, Simon Graeme, Katelaris, Constance Helen, Keaney, Ben, Milic, Andelija, Miller, Victoria, van Haeften, Shanice, Bonini, Maira, Bordin, Anna, Ceriotti, Valentina, Cristofolini, Fabiana, Cristofori, Antonella, Gottardini, Elena, Marcer, Guido, Marraccini, Paolo, Mascagni, Paolo, Meriggi, Antonio, Pace, Loretta, Pini, Alberto, Tacca, Maria Cristina, Bruffaerts, Nicolas, Hoebeke, Lucie, Adams-Groom, Beverley, Pashley, Catherine H., Satchwell, Jack, Skjøth, Carsten, Symon, Fiona A., Antunes, Celia M., Caeiro, Elsa, Camacho, Irene Gomes Câmara, Costa, Ana R., Deus, Ricardo João Ratola Capela, Ferreira, Manuel Branco, Fonseca, Joao Almeida Lopes, Galveias, Ana, Ribeiro, Helena, Tavares, Beatriz, Grewling, Łukasz, Grinn-Gofroń, Agnieszka, Jurkiewicz, Dariusz, Kalinowska, Ewa, Lipiec, Agnieszka, Myszkowska, Dorota, Piotrowska-Weryszko, Krystyna, Puc, Malgorzata, Rapiejko, Anna, Rapiejko, Piotr, Weryszko-Chmielewska, Elzbieta, Ziemianin, Monika, Berman, Dilys, Hoek, Werner, Manjra, Ahmed Ismail, Peter, Jonathan, Dahl, Åslög, Ekebom, Agneta, Stjepanovic, Barbara, Večenaj, Ana, Celenk, Sevcan, Göksel, Özlem, Göksel, Tuncay, Guvensen, Aykut A., Munevver, Nur, Sackesen, Cansin, Acar Sahin, Aydar, Uguz, Ulas U., Yazici, Duygu, Kajtor-Apatini, Dóra, Magyar, Donat, Szigeti, Tamas, Sikoparija, Branko, Kofol Seliger, Andreja, Simčič, Anja, Charalampopoulos, Athanasios, Vokou, Despoina, Rasmussen, Karen, Barrionuevo, Laura Beatriz, Ramon, German Dario, de Weger, Letty A., Koenders, Mieke M.J.F., van Vliet, Arnold J.H., Dušička, Jozef, Lafférsová, Janka, Šèevkováč, Jana, Rybníček, Ondøej, Coates, Frances, Jurgens, Dawn, Šauliene, Ingrida, Severova, Elena, Rodinkova, Victoria, Bortnyk, Mykyta, Palamarchuk, Olena, Yasniuk, Maryna, Louna-Korteniemi, Maria, Pätsi, Sanna, Saarto, Annika, Toiviainen, Linnea, Sozinova, Olga, Jia, Peng, other, and, Damialis, Athanasios, Gilles, Stefanie, Sofiev, Mikhail, Sofieva, Viktoria, Kolek, Franziska, Bayr, Daniela, Plaza, Maria P., Leier-Wirtz, Vivien, Kaschuba, Sigrid, Ziska, Lewis H., Bielory, Leonard, Makra, László, del Mar Trigo, Maria, Traidl-Hoffmann, Claudia, Oliver, Gilles, Pham-Thi, Nhân, Thibaudon, Michel, Arino, Arturo H., Belmonte, Jordina, Cervigon Morales, Patricia, De Linares, Concepción, Fernández, Delia, Fernández-Rodriguez, Santiago, Gabaldón Arguisuelas, Antonia, Galán, Carmen, González-Alonso, Mónica, Lara, Beatriz, Moreno Grau, José María, Oteros, José, Pérez-Badia, Rosa, Pérez-De-Zabalza, Anabel, Picornell, Antonio, Recio, Marta, Robles, Estrella, Rodríguez-Fernández, Alberto, Rodríguez-Rajo, F. Javier, Rojo, Jesús, Ruiz Valenzuela, Luis, Bergmann, Karl Christian, Werchan, Barbora, Werchan, Matthias, Buters, Jeroen T.M., Bastl, Maximilian, Dunker, Susanne, Hornick, Thomas, González Roldán, Nestor, Gilge, Stefan, Clot, Bernard, Finemann, Stanley, Ford, Linda, Gomez, Robert Anthony, Kamboj, Sanjay, Wilhelm, Wayne, Beggs, Paul J., Burton, Pamela, Davies, Janet M., Haberle, Simon Graeme, Katelaris, Constance Helen, Keaney, Ben, Milic, Andelija, Miller, Victoria, van Haeften, Shanice, Bonini, Maira, Bordin, Anna, Ceriotti, Valentina, Cristofolini, Fabiana, Cristofori, Antonella, Gottardini, Elena, Marcer, Guido, Marraccini, Paolo, Mascagni, Paolo, Meriggi, Antonio, Pace, Loretta, Pini, Alberto, Tacca, Maria Cristina, Bruffaerts, Nicolas, Hoebeke, Lucie, Adams-Groom, Beverley, Pashley, Catherine H., Satchwell, Jack, Skjøth, Carsten, Symon, Fiona A., Antunes, Celia M., Caeiro, Elsa, Camacho, Irene Gomes Câmara, Costa, Ana R., Deus, Ricardo João Ratola Capela, Ferreira, Manuel Branco, Fonseca, Joao Almeida Lopes, Galveias, Ana, Ribeiro, Helena, Tavares, Beatriz, Grewling, Łukasz, Grinn-Gofroń, Agnieszka, Jurkiewicz, Dariusz, Kalinowska, Ewa, Lipiec, Agnieszka, Myszkowska, Dorota, Piotrowska-Weryszko, Krystyna, Puc, Malgorzata, Rapiejko, Anna, Rapiejko, Piotr, Weryszko-Chmielewska, Elzbieta, Ziemianin, Monika, Berman, Dilys, Hoek, Werner, Manjra, Ahmed Ismail, Peter, Jonathan, Dahl, Åslög, Ekebom, Agneta, Stjepanovic, Barbara, Večenaj, Ana, Celenk, Sevcan, Göksel, Özlem, Göksel, Tuncay, Guvensen, Aykut A., Munevver, Nur, Sackesen, Cansin, Acar Sahin, Aydar, Uguz, Ulas U., Yazici, Duygu, Kajtor-Apatini, Dóra, Magyar, Donat, Szigeti, Tamas, Sikoparija, Branko, Kofol Seliger, Andreja, Simčič, Anja, Charalampopoulos, Athanasios, Vokou, Despoina, Rasmussen, Karen, Barrionuevo, Laura Beatriz, Ramon, German Dario, de Weger, Letty A., Koenders, Mieke M.J.F., van Vliet, Arnold J.H., Dušička, Jozef, Lafférsová, Janka, Šèevkováč, Jana, Rybníček, Ondøej, Coates, Frances, Jurgens, Dawn, Šauliene, Ingrida, Severova, Elena, Rodinkova, Victoria, Bortnyk, Mykyta, Palamarchuk, Olena, Yasniuk, Maryna, Louna-Korteniemi, Maria, Pätsi, Sanna, Saarto, Annika, Toiviainen, Linnea, Sozinova, Olga, Jia, Peng, and other, and
- Abstract
Pollen exposure weakens the immunity against certain seasonal respiratory viruses by diminishing the antiviral interferon response. Here we investigate whether the same applies to the pandemic severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which is sensitive to antiviral interferons, if infection waves coincide with high airborne pollen concentrations. Our original hypothesis was that more airborne pollen would lead to increases in infection rates. To examine this, we performed a cross-sectional and longitudinal data analysis on SARS-CoV-2 infection, airborne pollen, and meteorological factors. Our dataset is the most comprehensive, largest possible worldwide from 130 stations, across 31 countries and five continents. To explicitly investigate the effects of social contact, we additionally considered population density of each study area, as well as lockdown effects, in all possible combinations: without any lockdown, with mixed lockdown−no lockdown regime, and under complete lockdown. We found that airborne pollen, sometimes in synergy with humidity and temperature, explained, on average, 44% of the infection rate variability. Infection rates increased after higher pollen concentrations most frequently during the four previous days. Without lockdown, an increase of pollen abundance by 100 pollen/m3 resulted in a 4% average increase of infection rates. Lockdown halved infection rates under similar pollen concentrations. As there can be no preventive measures against airborne pollen exposure, we suggest wide dissemination of pollen−virus coexposure dire effect information to encourage high-risk individuals to wear particle filter masks during high springtime pollen concentrations.
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- 2021
31. The need for Pan-European automatic pollen and fungal spore monitoring: A stakeholder workshop position paper
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Tummon, F., Alados-Arboledas, Lucas, Bonini, Maira, Guinot, Benjamin, Hicke, Martin, Jacob, C., Kendorvski, Vladimir, McCairns, William, Peuch, Vincent-Henri, Pfaar, Oliver, Sicard, Michaël, Sikoparija, Branko, Clot, Bernard, Tummon, F., Alados-Arboledas, Lucas, Bonini, Maira, Guinot, Benjamin, Hicke, Martin, Jacob, C., Kendorvski, Vladimir, McCairns, William, Peuch, Vincent-Henri, Pfaar, Oliver, Sicard, Michaël, Sikoparija, Branko, and Clot, Bernard
- Abstract
Background: Information about airborne pollen concentrations is required by a range of end users, particularly from the health sector who use both observations and forecasts to diagnose and treat allergic patients. Manual methods are the standard for such measurements but, despite the range of pollen taxa that can be identified, these techniques suffer from a range of drawbacks. This includes being available at low temporal resolution (usually daily averages) and with a delay (usually 3–9 days from the measurement). Recent technological developments have made possible automatic pollen measurements, which are available at high temporal resolution and in real time, although currently only scattered in a few locations across Europe. Materials & Methods: To promote the development of an extensive network across Europe and to ensure that this network will respond to end user needs, a stakeholder workshop was organised under the auspices of the EUMETNET AutoPollen Programme. Participants discussed requirements for the groups they represented, ranging from the need for information at various spatial scales, at high temporal resolution, and for targeted services to be developed. Results: The provision of real-time information is likely to lead to a notable decrease in the direct and indirect health costs associated with allergy in Europe, currently estimated between €50–150 billion/year.. Discussion & Conclusion: A European measurement network to meet end user requirements would thus more than pay for itself in terms of potential annual savings and provide significant impetus to research across a range of disciplines from climate science and public health to agriculture and environmental management.
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- 2021
32. The need for Pan-European automatic pollen and fungal spore monitoring: A stakeholder workshop position paper
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions, Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció, Tummon, Fiona, Alados Arboledas, Lucas, Bonini, Maira, Guinot, Benjamin, Hicke, Martin, Jacob, Christophe, Kendrovski, Vladimir, McCairns, William, Petermann, Eric, Peuch, Vincent-Henri, Pfaar, Oliver, Sicard, Michaël, Sikoparija, Branko, Clot, Bernard, Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions, Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció, Tummon, Fiona, Alados Arboledas, Lucas, Bonini, Maira, Guinot, Benjamin, Hicke, Martin, Jacob, Christophe, Kendrovski, Vladimir, McCairns, William, Petermann, Eric, Peuch, Vincent-Henri, Pfaar, Oliver, Sicard, Michaël, Sikoparija, Branko, and Clot, Bernard
- Abstract
Background: Information about airborne pollen concentrations is required by a range of end users, particularly from the health sector who use both observations and forecasts to diagnose and treat allergic patients. Manual methods are the standard for such measurements but, despite the range of pollen taxa that can be identified, these techniques suffer from a range of drawbacks. This includes being available at low temporal resolution (usually daily averages) and with a delay (usually 3–9 days from the measurement). Recent technological developments have made possible automatic pollen measurements, which are available at high temporal resolution and in real time, although currently only scattered in a few locations across Europe. Materials & Methods: To promote the development of an extensive network across Europe and to ensure that this network will respond to end user needs, a stakeholder workshop was organised under the auspices of the EUMETNET AutoPollen Programme. Participants discussed requirements for the groups they represented, ranging from the need for information at various spatial scales, at high temporal resolution, and for targeted services to be developed. Results: The provision of real-time information is likely to lead to a notable decrease in the direct and indirect health costs associated with allergy in Europe, currently estimated between €50–150 billion/year.1 Discussion & Conclusion: A European measurement network to meet end user requirements would thus more than pay for itself in terms of potential annual savings and provide significant impetus to research across a range of disciplines from climate science and public health to agriculture and environmental management., Peer Reviewed, Postprint (published version)
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- 2021
33. Desert dust has a notable impact on aerobiological measurements in Europe
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Šikoparija, Branko
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- 2020
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34. Bioaerosol field measurements: Challenges and perspectives in outdoor studies
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Santl-Temkiv, Tina, Sikoparija, Branko, Maki, Teruya, Carotenuto, Federico, Amato, Pierre, Yao, Maosheng, Morris, Cindy E., Schnell, Russ, Jaenicke, Ruprecht, Pohlker, Christopher, DeMott, Paul J., Hil, Thomas C. J., Huffman, Alex J., Department of Bioscience [Aarhus], Stellar Astrophysics Centre [Aarhus] (SAC), Aarhus University [Aarhus], iCLIMATE Aarhus University Interdisciplinary Centre for Climate Change, BioSense Institute - Research Institute for Information Technologies in Biosystems, University of Novi Sad, Kanazawa University (KU), Institute of Bioeconomy (IBE), Consiglio Nazionale delle Ricerche (CNR), Institut de Chimie de Clermont-Ferrand (ICCF), SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Unité de Pathologie Végétale (PV), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), National Oceanic and Atmospheric Organization, Institute for Physics of the Atmosphere, Johannes Gutenberg - Universität Mainz (JGU), Max Planck Institute for Chemistry, Multiphase Chemistry Department, Department of Atmospheric Science, Colorado State University [Fort Collins] (CSU), Department of Chemistry and Biochemistry, Ludwig-Maximilians-Universität München (LMU), The Danish National Research Foundation (Grant agreement no.: DNRF106, Stellar Astrophysics Centre, Aarhus University), AUFF Nova program (AUFF-E-2015-FLS-9-10), Villum Fonden (research grant 23175), Ministry of Education, Science and Technological Development of the Republic of Serbia (project no. III 44006), Max Planck Society (MPG), NSFC Distinguished Young Scholars Fund (21725701), Aarhus University, Department of Environmental Science, Institute of Science and Engineering, Istanbul Commerce University (T.C.), SIGMA Clermont, Institut de Chimie de Clermont-Ferrand - Clermont Auvergne (ICCF), Sigma CLERMONT (Sigma CLERMONT)-Université Clermont Auvergne (UCA)-Centre National de la Recherche Scientifique (CNRS), Station de Pathologie Végétale (AVI-PATHO), Institut National de la Recherche Agronomique (INRA), Johannes Gutenberg - University of Mainz (JGU), Colorado State University (CSU), Institute for BioEconomy [Sesto Fiorentino] (IBE | CNR), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), Peking University [Beijing], Johannes Gutenberg - Universität Mainz = Johannes Gutenberg University (JGU), Šantl-Temkiv, Tina, and Huffman, J. Alex
- Subjects
Atmospheric physics ,aerobiology ,010504 meteorology & atmospheric sciences ,HIGH-LEVEL EXPRESSION ,Biodiversité et Ecologie ,010501 environmental sciences ,01 natural sciences ,biodiversité ,CLOUD CONDENSATION NUCLEI ,bioaérosol ,General Materials Science ,Water cycle ,MARINE BOUNDARY-LAYER ,pathologie végétale ,Scientific disciplines ,Grand Challenges ,origine biogéographique ,ICE-NUCLEATION ACTIVITY ,Environmental resource management ,UNMANNED AERIAL SYSTEM ,Pollution ,allergène ,AMAZON RAIN-FOREST ,animal pathology ,SEA-SURFACE MICROLAYER ,Bioaerosol ,cycle de l'eau ,Indoor bioaerosol ,bioaerosol ,Biodiversity and Ecology ,LONG-DISTANCE TRANSPORT ,Urbanization ,Environmental Chemistry ,pathologie animale ,aérobiologie ,0105 earth and related environmental sciences ,climat ,[PHYS.PHYS]Physics [physics]/Physics [physics] ,business.industry ,AIRBORNE BACTERIAL COMMUNITIES ,Physique générale ,Tiina Teponen ,15. Life on land ,allergene ,Field (geography) ,BIOLOGICAL AEROSOL-PARTICLES ,physique des nuages ,13. Climate action ,Environmental science ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology ,business - Abstract
Outdoor field measurements of bioaerosols are performed within a wide range of basic and applied scientific disciplines, each with its own goals, assumptions, and terminology. This article contains brief reviews of outdoor field bioaerosol research from these diverse interests, with emphasis on perspectives from the atmospheric sciences. The focus is on a high-level discussion of pressing scientific questions, grand challenges, and needs for cross-disciplinary collaboration. The research topics, in which bioaerosol field measurement is important, include (i) atmospheric physics, clouds, climate, and hydrological cycle; (ii) atmospheric chemistry; (iii) airborne allergen-containing particles; (iv) airborne human pathogens and national security; (v) airborne livestock and crop pathogens; and (vi) biogeography and biodiversity. We concisely review bioaerosol impacts and discuss properties that distinguish bioaerosols from abiological aerosols. We give extra focus to regions of specific interest, i.e., forests, polar regions, marine and coastal environments, deserts, urban and rural areas, and summarize key considerations related to bioaerosol measurements, such as of fluxes, of long-range transport, and of sampling from both stationary and vessel-driven platforms. Keeping in mind a series of key scientific questions posed within the diverse communities, we suggest that pressing scientific questions include the following: (i) emission sources and flux estimates; (ii) spatial distribution; (iii) changes in distribution; (iv) atmospheric aging; (v) metabolic activity; (vi) urbanization of allergies; (vii) transport of human pathogens; and (viii) climate-relevant properties.
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- 2020
35. Erratum
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Scheifinger, Helfried, Belmonte, Jordina, Buters, Jeroen, Celenk, Sevcan, Damialis, Athanasios, Dechamp, Chantal, García-Mozo, Herminia, Gehrig, Regula, Grewling, Lukasz, Halley, John M., Hogda, Kjell-Arild, Jäger, Siegfried, Karatzas, Kostas, Karlsen, Stein-Rune, Koch, Elisabeth, Pauling, Andreas, Peel, Roz, Sikoparija, Branko, Smith, Matt, Galán-Soldevilla, Carmen, Thibaudon, Michel, Vokou, Despina, de Weger, Letty A., Sofiev, Mikhail, editor, and Bergmann, Karl-Christian, editor
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- 2013
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36. Erratum
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Scheifinger, Helfried, primary, Belmonte, Jordina, additional, Buters, Jeroen, additional, Celenk, Sevcan, additional, Damialis, Athanasios, additional, Dechamp, Chantal, additional, García-Mozo, Herminia, additional, Gehrig, Regula, additional, Grewling, Lukasz, additional, Halley, John M., additional, Hogda, Kjell-Arild, additional, Jäger, Siegfried, additional, Karatzas, Kostas, additional, Karlsen, Stein-Rune, additional, Koch, Elisabeth, additional, Pauling, Andreas, additional, Peel, Roz, additional, Sikoparija, Branko, additional, Smith, Matt, additional, Galán-Soldevilla, Carmen, additional, Thibaudon, Michel, additional, Vokou, Despina, additional, and de Weger, Letty A., additional
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- 2012
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37. The Onset, Course and Intensity of the Pollen Season
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Dahl, Åslög, primary, Galán, Carmen, additional, Hajkova, Lenka, additional, Pauling, Andreas, additional, Sikoparija, Branko, additional, Smith, Matt, additional, and Vokou, Despoina, additional
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- 2012
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38. Monitoring, Modelling and Forecasting of the Pollen Season
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Scheifinger, Helfried, primary, Belmonte, Jordina, additional, Buters, Jeroen, additional, Celenk, Sevcan, additional, Damialis, Athanasios, additional, Dechamp, Chantal, additional, García-Mozo, Herminia, additional, Gehrig, Regula, additional, Grewling, Lukasz, additional, Halley, John M., additional, Hogda, Kjell-Arild, additional, Jäger, Siegfried, additional, Karatzas, Kostas, additional, Karlsen, Stein-Rune, additional, Koch, Elisabeth, additional, Pauling, Andreas, additional, Peel, Roz, additional, Sikoparija, Branko, additional, Smith, Matt, additional, Galán-Soldevilla, Carmen, additional, Thibaudon, Michel, additional, Vokou, Despina, additional, and de Weger, Letty A., additional
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- 2012
- Full Text
- View/download PDF
39. Bioaerosol field measurements: Challenges and perspectives in outdoor studies
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Šantl-Temkiv, Tina, primary, Sikoparija, Branko, additional, Maki, Teruya, additional, Carotenuto, Federico, additional, Amato, Pierre, additional, Yao, Maosheng, additional, Morris, Cindy E., additional, Schnell, Russ, additional, Jaenicke, Ruprecht, additional, Pöhlker, Christopher, additional, DeMott, Paul J., additional, Hill, Thomas C. J., additional, and Huffman, J. Alex, additional
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- 2019
- Full Text
- View/download PDF
40. Predicting abundances of invasive ragweed across Europe using a “top-down” approach
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Skjøth, Carsten Ambelas, Sun, Yan, Karrer, Gerhard, Sikoparija, Branko, Smith, Matt, Schaffner, Urs, Müller-Schärer, Heinz, Skjøth, Carsten Ambelas, Sun, Yan, Karrer, Gerhard, Sikoparija, Branko, Smith, Matt, Schaffner, Urs, and Müller-Schärer, Heinz
- Abstract
Common ragweed (Ambrosia artemisiifolia L.) is a widely distributed and harmful invasive plant that is an important source of highly allergenic pollen grains and a prominent crop weed. As a result, ragweed causes huge costs to both human health and agriculture in affected areas. Efficient mitigation requires accurate mapping of ragweed densities that, until now, has not been achieved accurately for the whole of Europe. Here we provide two inventories of common ragweed abundances with grid resolutions of 1 km and 10 km. These “top-down” inventories integrate pollen data from 349 stations in Europe with habitat and landscape management information, derived from land cover data and expert knowledge. This allows us to cover areas where surface observations are missing. Model results were validated using “bottom– up” data of common ragweed in Austria and Serbia. Results show high agreement between the two analytical methods. The inventory shows that areas with the lowest ragweed abundances are found in Northern and Southern European countries and the highest abundances are in parts of Russia, parts of Ukraine and the Pannonian Plain. Smaller hotspots are found in Northern Italy, the Rhône Valley in France and in Turkey. The top-down approach is based on a new approach that allows for cross- continental studies and is applicable to other anemophilous species. Due to its simplicity, it can be used to investigate such species that are difficult and costly to identify at larger scales using traditional vegetation surveys or remote sensing. The final inventory is open source and available as a georeferenced tif file, allowing for multiple usages, reducing costs for health services and agriculture through well- targeted management interventions.
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- 2019
41. THE APPLICATION OF NEURAL NETWORK-BASED RAGWEED POLLEN FORECAST BY THE RAGWEED POLLEN ALARM SYSTEM IN THE PANNONIAN BIOGEOGRAPHICAL REGION
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Csepe, Zoltan, Leelossy, Adam, Manyoki, Gergely, Kajt or Apatini, Dora, Udvardy, O, Peter, B, Paldy, Anna, Gelybo, G, Szigeti, Tamas, Pandics, T, Kofol Seliger, Andreja, Leru, Polliana, Eftimie, Ana Maria, Sikoparija, Branko, Radisic, Predrag, Stjepanovic, Barbara, Hrga, Ivana, Vecenaj, Ana, Vucic, Anita, Skoric, Tatjana, Magyar, Donat, and Albertini, Roberto
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neural network, MLP, ragweed pollen - Abstract
Ragweed Pollen Alarm System (R-PAS) has been running since 2014 to provide pollen information for countries in the Pannonian Biogeographical Region (PBR). The aim of this study is to develop forecast models of the representative aerobiological monitoring stations, identified by analysis based on a Neural Network computation. Monitoring stations with 7-day Hirst type pollen trap·having 10- year Iong validated dataset of ragweed pollen were selected for the study from the PBR. Variables including meteorological data, pollen data of the previous days·and nearby monitoring stations were used as input of the model. We used the·multilayer perceptron model to forecast the pollen concentration. The multilayer perceptron (MLP) is a feedforward artificial neural network. MLP is a data driven method it can use to forecast complex systems. ln our case it has three layers with one hidden layer. MLP utilizes a supervised learning technique called backpropagation for training to get better performance. The Neural Network tests selected different set of variables for predict pollen levels for the next 3 days in each monitoring stations. The predicted pollen Ievels are shown on isarithmic map. We use MAE, RMSE and correlation coefficients to show the forecasting system's performance. Visualization of the results of Neural Network forecast on isarithmic maps is a good tool to communicate pollen information to general public in the PBR.
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- 2018
42. Predicting abundances of invasive ragweed across Europe using a “top-down” approach
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Skjøth, Carsten Ambelas, primary, Sun, Yan, additional, Karrer, Gerhard, additional, Sikoparija, Branko, additional, Smith, Matt, additional, Schaffner, Urs, additional, and Müller-Schärer, Heinz, additional
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- 2019
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43. Automatic pollen recognition with the Rapid-E particle counter: the first-level procedure, experience and next steps
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Šaulienė, Ingrida, primary, Šukienė, Laura, additional, Daunys, Gintautas, additional, Valiulis, Gediminas, additional, Vaitkevičius, Lukas, additional, Matavulj, Predrag, additional, Brdar, Sanja, additional, Panic, Marko, additional, Sikoparija, Branko, additional, Clot, Bernard, additional, Crouzy, Benoît, additional, and Sofiev, Mikhail, additional
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- 2019
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44. Seasonal variation in the activity of selected antioxidant enzymes and malondialdehyde level in worker honey bees
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Orcić, Snežana, Nikolić, Tatjana, Purac, Jelena, Sikoparija, Branko, Blagojević, Duško P., Vukasinović, Elvira, Plavsa, Nada, Stevanović, Jevrosima, Kojić, Danijela, Orcić, Snežana, Nikolić, Tatjana, Purac, Jelena, Sikoparija, Branko, Blagojević, Duško P., Vukasinović, Elvira, Plavsa, Nada, Stevanović, Jevrosima, and Kojić, Danijela
- Abstract
The recent decline in managed honey bee populations, Apis mellifera L. (Hymenoptera: Apidae), has caused scientific, ecological, and economic concern. Research into the formation of reactive oxygen species (ROS), antioxidative defense mechanisms, and oxidative stress can contribute to our understanding of bee survival and conservation of this species. Activities of superoxide dismutase (SOD), catalase (CAT), and glutathione S-transferase (GST) enzymes together with levels of malondialdehyde (MDA) were measured in summer and winter honey bees sampled from three colonies. One colony was stationary (C1), entering the winter period having accumulated Robinia pseudoacacia L. (Fabaceae) honey, and two were migratory (C2 and C3), entering the winter period with mainly Tilia (Malvaceae) and Brassica (Brassicaceae) honey, respectively. Compared to summer workers, winter worker bees had decreased SOD and GST activity, and MDA level, whereas CAT activity increased in all three colonies. We also demonstrated that seasonality is the main factor responsible for changes in antioxidant enzymes and MDA levels in worker honey bees. Overall, our results indicate a difference between summer and winter worker bees, pointing at a reduced level of antioxidant enzyme defenses during overwintering which may be due to a decrease in production of ROS. The decreased levels of MDA measured in winter honey bees confirm this. As ROS are actively used by insects as a defense mechanism to fight pathogens, we suggest that reduced production of ROS contributes to higher susceptibility of winter honey bees to infections and reduced overwinter survival.
- Published
- 2017
45. Fluorescence of bio-molecules a simple and quick method: What honey emission speaks about bee society and honey quality
- Author
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Stanković, Mira, Bartolić, Dragana, Sikoparija, Branko, Spasojević, Dragica, Mutavdžić, Dragosav, Natić, Maja, Radotić, Ksenija, Stanković, Mira, Bartolić, Dragana, Sikoparija, Branko, Spasojević, Dragica, Mutavdžić, Dragosav, Natić, Maja, and Radotić, Ksenija
- Abstract
Fluorescence is non-destructive, sensitive, simple and fast method for analysis of fluorescent compounds contained in very low amounts (nanomolar concentrations) in the samples. It can be used for structural or concentration studies, in analytical or diagnostic purposes [1].The fluorescence spectra, in combination with appropriate statistical methods, may provide useful fingerprints in food analysis [2]. Various methods for study of honey quality and adulteration have been in research focus [3]. Over the last years, in different geographic areas a notable los of honey bee (Apis mellifera L.) colonies has been reported. A number of stressors affecting honey bees, including diseases, parasites, pesticides and poor nutrition have been identified [4]. Therefore fast and reliable methods are required for screening bee products both as a tool for assessing quality and to identify risks for colony state. We used fluorescence spectroscopy combined with advanced statistical analysis in order to identify variability in Fruska Gora lime tree (Tilia L.) honey collected at different locations in 2015. Since homogenization of the honey before packing in jars is considered as critical procedure from the Quality Control point of view, we have explored to what extent the ratio of the two main fluorophores in honey, originating from proteins and phenolic compounds change between extraction stage to packaging. Steady state fluorescence spectroscopy in combination with Multivariate Curve Resolution Alternating Least Squares (MCR-ALS) for spectral analysis has been applied to differentiate samples of honey. The three-dimensional excitation–emission matrix (EEM) is a rapid, selective and sensitive method: by changing excitation and the emission wavelength simultaneously, information regarding the fluorescence characteristics of the different compounds contained in the sample of interest can be obtained [5]. Proteins in honey mainly originate from bees and their quantity depends on bee so
- Published
- 2017
46. Risk of exposure to airborne Ambrosia pollen from local and distant sources in Europe - an example from Denmark
- Author
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Sommer, Janne, Smith, Matt, Sikoparija, Branko, Kasprzyk, Idalia, Myszkowska, Dorota, Grewling, Łukasz, and Skjoth, Carsten A.
- Subjects
lcsh:GE1-350 ,Air Movements ,invasive alien species ,Plant Extracts ,Denmark ,lcsh:S ,HYSPLIT ,Allergens ,Antigens, Plant ,Q1 ,Risk Assessment ,lcsh:Agriculture ,land cover ,Humans ,Seasons ,Ambrosia ,ragweed ,lcsh:Environmental sciences ,Environmental Monitoring - Abstract
Introduction [b][/b][b]Background. [/b][i][/b]Ambrosia artemisiifolia[/i] L. is a noxious invasive alien species in Europe. It is an important aeroallergen and millions of people are exposed to its pollen. Objective The main aim of this study is to show that atmospheric concentrations of [i]Ambrosia[/i] pollen recorded in Denmark can be derived from local or more distant sources. Methods This was achieved by using a combination of pollen measurements, air mass trajectory calculations using the HYPLIT model and mapping all known Ambrosia locations in Denmark and relating them to land cover types. Results The annual pollen index recorded in Copenhagen during a 15-year period varied from a few pollen grains to more than 100. Since 2005, small quantities of Ambrosia pollen has been observed in the air every year. We have demonstrated, through a combination of Lagrangian back-trajectory calculations and atmospheric pollen measurements, that pollen arrived in Denmark via long-distance transport from centres of Ambrosia infection, such as the Pannonian Plain and Ukraine. Combining observations with results from a local scale dispersion model show that it is possible that Ambrosia pollen could be derived from local sources identified within Denmark. Conclusions The high allergenic capacity of Ambrosia pollen means that only small amounts of pollen are relevant for allergy sufferers, and just a few plants will be sufficient to produce enough pollen to affect pollen allergy sufferers within a short distance from the source. It is necessary to adopt control measures to restrict Ambrosia numbers. Recommendations for the removal of all Ambrosia plants can effectively reduce the amount of local pollen, as long as the population of Ambrosia plants is small.
- Published
- 2015
47. Physicochemical composition and techno-functional properties of bee pollen collected in Serbia
- Author
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Kostić, Aleksandar, Kostić, Aleksandar, Barać, Miroljub, Stanojević, Sladjana, Milojković-Opsenica, Dušanka M., Tešić, Živoslav, Sikoparija, Branko, Radisić, Predrag, Prentović, Marija, Pešić, Mirjana, Kostić, Aleksandar, Kostić, Aleksandar, Barać, Miroljub, Stanojević, Sladjana, Milojković-Opsenica, Dušanka M., Tešić, Živoslav, Sikoparija, Branko, Radisić, Predrag, Prentović, Marija, and Pešić, Mirjana
- Abstract
Physicochemical composition and techno-functional properties of bee pollens collected in Serbia were assessed. Analysed bee pollen contained 14.81-27.25% proteins, 1.31-6.78% lipids, 64.42-81.84% carbohydrates and 1.18-3.21% ash, with mean energy value of 375 kcal. Bee pollen showed low protein solubility (2.79-25.90 g/100 g), high carbohydrate solubility (31.2-75 g/100 g), good emulsifying properties (emulsion stability index ranged from 19.6 to 49.3 min and emulsion activity index ranged from 10.40 to 24.52 m(2)/g), non-foaming properties, poor water absorption capacity (0.92-2.25 g/g) and excellent oil absorption capacity (1-3.53 g/g). Protein solubility was positively correlated with carbohydrate content (r = 0.73, p lt 0.05), but negatively with ash and lipid content (r = -0.39, r = -0.46, p lt 0.05, respectively). The total protein content and lipid content were shown positive relationship with carbohydrate solubility (r = 039, r = 0.45, p lt 0.05, respectively). Emulsion stability was positively correlated with protein solubility (r = 0.47, p lt 0.05), whereas emulsion activity was negatively correlated with this parameter (r = -0.39, p lt 0.05). Water and oil absorption capacity were not shown significant correlations with other investigated parameters. The obtained data indicated that bee pollen could find useful application as food ingredient in variety of food products.
- Published
- 2015
48. Environmental effects on superoxide dismutase and catalase activity and expression in honey bee
- Author
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Nikolić, Tatjana V., Purac, Jelena, Orcić, Snežana, Kojić, Danijela, Vujanović, Dragana, Stanimirović, Zoran, Grzetić, Ivan, Ilijević, Konstantin, Sikoparija, Branko, Blagojević, Duško P., Nikolić, Tatjana V., Purac, Jelena, Orcić, Snežana, Kojić, Danijela, Vujanović, Dragana, Stanimirović, Zoran, Grzetić, Ivan, Ilijević, Konstantin, Sikoparija, Branko, and Blagojević, Duško P.
- Abstract
Understanding the cellular stress response in honey bees will significantly contribute to their conservation. The aim of this study was to analyze the response of the antioxidative enzymes superoxide dismutase and catalase in honey bees related to the presence of toxic metals in different habitats. Three locations were selected: (i) Tunovo on the mountain Golija, as control area, without industry and large human impact, (ii) Belgrade as urban area, and (iii) Zajaca, as mining and industrial zone. Our results showed that the concentrations of lead (Pb) in whole body of bees vary according to habitat, but there was very significant increase of Pb in bees from investigated industrial area. Bees from urban and industrial area had increased expression of both Sod1 and Cat genes, suggesting adaptation to increased oxidative stress. However, in spite increased gene expression, the enzyme activity of catalase was lower in bees from industrial area suggesting inhibitory effect of Pb on catalase.
- Published
- 2015
49. Monitoring of fungal spores in the indoor air of preschool institution facilities in Novi Sad
- Author
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Novakovic, Milana, primary, Karaman, Maja, additional, Radnovic, Dragan, additional, Radisic, Predrag, additional, and Sikoparija, Branko, additional
- Published
- 2013
- Full Text
- View/download PDF
50. BETULA POLLEN SEASON IN THE DANUBE-KRIS-MURES-TISA EUROREGION (2000-2002).
- Author
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RADISIC, Predrag, SIKOPARIJA, Branko, JUHASZ, Miklos, and IANOVICI, Nikoleta
- Published
- 2003
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