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    Wyświetlanie 1-7 z 7
    Tytuł:
    Did You Have an Impact? A Theory-Based Method for Planning and Evaluating Knowledge-Transfer and Exchange Activities in Occupational Health and Safety
    Autorzy:
    Kramer, D. M.
    Wells, R. P.
    Carlan, N.
    Aversa, T.
    Bigelow, P. P.
    Dixon, S. M.
    McMillan, K.
    Tematy:
    knowledge transfer and exchange
    evaluation
    workplace-based research
    musculoskeletal disorders
    choroby narządów ruchu
    ewakuacja
    transfer wiedzy bhp
    planowanie
    badania naukowe
    Pokaż więcej
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Powiązania:
    https://bibliotekanauki.pl/articles/90884.pdf  Link otwiera się w nowym oknie
    Opis:
    Few evaluation tools are available to assess knowledge-transfer and exchange interventions. The objective of this paper is to develop and demonstrate a theory-based knowledge-transfer and exchange method of evaluation (KEME) that synthesizes 3 theoretical frameworks: the promoting action on research implementation of health services (PARiHS) model, the transtheoretical model of change, and a model of knowledge use. It proposes a new term, keme, to mean a unit of evidence-based transferable knowledge. The usefulness of the evaluation method is demonstrated with 4 occupational health and safety knowledge transfer and exchange (KTE) implementation case studies that are based upon the analysis of over 50 pre-existing interviews. The usefulness of the evaluation model has enabled us to better understand stakeholder feedback, frame our interpretation, and perform a more comprehensive evaluation of the knowledge use outcomes of our KTE efforts.
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Host-derived protease promotes aggregation of Staphylococcus aureus by cleaving the surface protein SasG
    Autorzy:
    Crosby, Heidi A.
    LaRivière, Wells B.
    Langouët-Astrié, Christophe J.
    Horswill, Alexander R.
    Kwieciński, Jakub
    Schmidt, Eric P.
    Oshima, Kaori
    Keim, Klara
    Opis:
    Staphylococcus aureus is one of the leading causes of hospital-acquired infections, many of which begin following attachment and accumulation on indwelling medical devices or diseased tissue. These infections are often linked to the establishment of biofilms, but another often overlooked key characteristic allowing S. aureus to establish persistent infection is the formation of planktonic aggregates. Such aggregates are physiologically similar to biofilms and protect pathogens from innate immune clearance and increase antibiotic tolerance. The cell-wall-associated protein SasG has been implicated in biofilm formation via mechanisms of intercellular aggregation but the mechanism in the context of disease is largely unknown. We have previously shown that the expression of cell-wall-anchored proteins involved in biofilm formation is controlled by the ArlRS-MgrA regulatory cascade. In this work, we demonstrate that the ArlRS two-component system controls aggregation, by repressing the expression of sasG by activation of the global regulator MgrA. We also demonstrate that SasG must be proteolytically processed by a non-staphylococcal protease to induce aggregation and that strains expressing functional full-length sasG aggregate significantly upon proteolysis by a mucosal-derived host protease found in human saliva. We used fractionation and N-terminal sequencing to demonstrate that human trypsin within saliva cleaves within the A domain of SasG to expose the B domain and induce aggregation. Finally, we demonstrated that SasG is involved in virulence during mouse lung infection. Together, our data point to SasG, its processing by host proteases, and SasG-driven aggregation as important elements of S. aureus adaptation to the host environment.
    Dostawca treści:
    Repozytorium Uniwersytetu Jagiellońskiego
    Artykuł
    Tytuł:
    Bacterial pneumonia-induced shedding of epithelial heparan sulfate inhibits the bactericidal activity of cathelicidin in a murine model
    Autorzy:
    McCollister, Bruce D.
    Erzen, Christopher L.
    Oshima, Kaori
    Horswill, Alexander R.
    Langouet-Astrie, Christophe J.
    Zhang, Fuming
    Kwieciński, Jakub
    Rizzo, Alicia N.
    Colbert, James F.
    Bastarache, Julie A.
    Shi, Deling
    Windham, Samuel L.
    Schmidt, Eric P.
    LaRiviere, Wells B.
    Zehr, Evan P.
    Opis:
    Bacterial pneumonia is a common clinical syndrome leading to significant morbidity and mortality worldwide. In the current study, we investigate a novel, multidirectional relationship between the pulmonary epithelial glycocalyx and antimicrobial peptides in the setting of methicillin-resistant Staphylococcus aureus (MRSA) pneumonia. Using an in vivo pneumonia model, we demonstrate that highly sulfated heparan sulfate (HS) oligosaccharides are shed into the airspaces in response to MRSA pneumonia. In vitro, these HS oligosaccharides do not directly alter MRSA growth or gene transcription. However, in the presence of an antimicrobial peptide (cathelicidin), increasing concentrations of HS inhibit the bactericidal activity of cathelicidin against MRSA as well as other nosocomial pneumonia pathogens (Klebsiella pneumoniae and Pseudomonas aeruginosa) in a dose-dependent manner. Surface plasmon resonance shows avid binding between HS and cathelicidin with a dissociation constant of 0.13 μM. These findings highlight a complex relationship in which shedding of airspace HS may hamper host defenses against nosocomial infection via neutralization of antimicrobial peptides. These findings may inform future investigation into novel therapeutic targets designed to restore local innate immune function in patients suffering from primary bacterial pneumonia. NEW & NOTEWORTHY Primary Staphylococcus aureus pneumonia causes pulmonary epithelial heparan sulfate (HS) shedding into the airspace. These highly sulfated HS fragments do not alter bacterial growth or transcription, but directly bind with host antimicrobial peptides and inhibit the bactericidal activity of these cationic polypeptides. These findings highlight a complex local interaction between the pulmonary epithelial glycocalyx and antimicrobial peptides in the setting of bacterial pneumonia.
    Dostawca treści:
    Repozytorium Uniwersytetu Jagiellońskiego
    Artykuł
    Tytuł:
    The influenza-injured lung microenvironment promotes MRSA virulence, contributing to severe secondary bacterial pneumonia
    Autorzy:
    Horswill, Alexander R.
    Langouët-Astrié, Christophe
    Kwieciński, Jakub
    Shi, Deling
    McMurtry, Sarah A.
    Perelman, Sofya S.
    Liu, Jian
    Schmidt, Eric P.
    Zhang, Fuming
    Oshima, Kaori
    Zakharevich, Igor
    Kavanaugh, Jeffrey S.
    Yang, Yimu
    Boguslawski, Kristina M.
    LaRivière, Wells B.
    Su, Gouwei
    Torres, Victor J.
    Hansen, Kirk C.
    Opis:
    Influenza infection is substantially worsened by the onset of secondary pneumonia caused by bacteria, such as methicillin-resistant Staphylococcus aureus (MRSA). The bidirectional interaction between the influenza-injured lung microenvironment and MRSA is poorly understood. By conditioning MRSA ex vivo in bronchoalveolar lavage fluid collected from mice at various time points of influenza infection, we found that the influenza-injured lung microenvironment dynamically induces MRSA to increase cytotoxin expression while decreasing metabolic pathways. LukAB, a SaeRS two-component system-dependent cytotoxin, is particularly important to the severity of post-influenza MRSA pneumonia. LukAB’s activity is likely shaped by the post-influenza lung microenvironment, as LukAB binds to (and is activated by) heparan sulfate (HS) oligosaccharide sequences shed from the epithelial glycocalyx after influenza. Our findings indicate that post-influenza MRSA pneumonia is shaped by bidirectional host-pathogen interactions: host injury triggers changes in bacterial expression of toxins, the activity of which may be shaped by host-derived HS fragments.
    Dostawca treści:
    Repozytorium Uniwersytetu Jagiellońskiego
    Artykuł
    Tytuł:
    Nuclear astrophysics with radioactive ions at FAIR
    Autorzy:
    Trautmann, W.
    Csatlós, M.
    Dupont, E.
    Litvinov, Y.
    Neumann-Cosel, P. von
    Labiche, M.
    Spieker, M.
    Rigollet, C.
    Wagner, A.
    Déchery, F.
    Pandit, S.
    Morcelle, V.
    Reifarth, R.
    Sohler, D.
    Dueñas, J.
    Ornelas, A.
    Kulessa, Reinhard
    Endres, J.
    Körner, G.
    Zerguerras, T.
    Fernandez-Dominguez, B.
    Uvarov, L.
    Borge, M. G.
    Naqvi, F.
    Heftrich, T.
    Lederer, C.
    Savran, D.
    Timar, J.
    Jonson, B.
    Schmitt, C.
    Zgura, M.
    Al-Khalili, J.
    Zartova, I.
    Uesaka, T.
    Bertulani, C.
    Körper, D.
    Grigorenko, L.
    Mahata, K.
    Kratz, J.
    Nikolski, E.
    Stuhl, L.
    Weick, H.
    Pietri, S.
    Ignatyuk, A.
    Sümmerer, K.
    Cherciu, M.
    Herzberg, R.
    Nociforo, C.
    Jakobsson, B.
    Gulyas, J.
    Söderström, P.
    Iwasa, N.
    Nacher, E.
    Casarejos, E.
    Streicher, B.
    Wieland, O.
    Lazarus, I.
    Bagchi, S.
    Trivedi, T.
    Cederkall, J.
    Brambilla, S.
    Catford, W.
    Tengblad, O.
    Pietralla, N.
    Detistov, P.
    Stan, E.
    Taylor, J.
    Tostevin, J.
    Benlliure, J.
    Kröll, T.
    Petrache, C.
    Boutachkov, P.
    Fernandez, P. Diaz
    Langanke, K.
    Monago, J. Briz
    Hammache, F.
    Alkhomashi, N.
    Heil, M.
    Cresswell, J.
    Johansson, H.
    Davids, B.
    Thornhill, J.
    Khan, E.
    Rauscher, T.
    Panin, V.
    Pivovarov, Y.
    Derya, V.
    Stevenson, P.
    Rosado, J. Sánchez
    Kuzmin, E.
    Pawłowski, P.
    Thoennessen, M.
    Beceiro, S.
    Maev, E.
    Liberati, V.
    Tornyi, T.
    Parkar, V.
    Schrock, P.
    Gasparic, I.
    Avdeichikov, V.
    Gastineau, B.
    Volknandt, M.
    Elekes, Z.
    Lemmon, R.
    Jurado, B.
    Romig, C.
    Cederwall, B.
    Zhukov, M.
    Sanchez, J.
    Terashima, S.
    Aksouh, F.
    Alvarez-Rodriguez, R.
    Rastrepina, G.
    Thungstrom, G.
    Taieb, J.
    Ilieva, S.
    Shrivastava, A.
    Schwengner, R.
    Kelic-Heil, A.
    Koloczek, A.
    Woods, P.
    Ritter, C.
    Egelhof, P.
    Togano, Y.
    Saez, del Rio
    Wimmer, C.
    Sauerwein, A.
    Dmitry, S.
    Townsley, C.
    Ershova, O.
    Aumann, T.
    Stanoiu, M.
    Schmid, M. von
    Bertini, D.
    Gilbert, M.
    Davinson, T.
    Wells, D.
    Udias, J.
    Mengoni, D.
    Paradela, C.
    Bleis, T. Le
    Boztosun, I.
    Kogimtzis, M.
    Yakorev, D.
    Redondo, D. Galaviz
    Garg, U.
    Kräckmann, S.
    Egorova, I.
    Sakuta, S.
    Belier, G.
    Palit, R.
    Scheit, H.
    Roussel-Chomaz, P.
    Röder, M.
    Chartier, M.
    Geissel, H.
    Coleman-Smith, P.
    Suda, T.
    Velho, P.
    Machado, J.
    Stepantsov, S.
    Najafi, M.
    Mancusi, D.
    Sidorchuk, S.
    Ricciardi, M.
    Heine, M.
    Cardona, J. Zamora
    Ershov, S.
    Fiori, E.
    Haiduc, M.
    Gernhäuser, R.
    Gannon, S.
    Holl, M.
    Salsac, M.
    Tomohiro, U.
    Junghans, A.
    Nyman, G.
    Movsesyan, A.
    Doré, D.
    Andreev, V.
    Pereira, J.
    Perea, A.
    Tanihata, I.
    Frutos, T. Rodriguez
    Bishop, S.
    Slobodan, D.
    Pohl, M.
    Schnorrenberger, L.
    Münzenberg, G.
    Camera, F.
    Pickstone, S.
    Singh, P.
    Winfield, J. S.
    Andrei, B.
    Atar, L.
    Fomichev, A.
    Chatillon, A.
    Typel, S.
    Weigand, M.
    Kurz, N.
    Ivanov, M.
    Gorshkov, A.
    Paschalis, S.
    Crespi, F.
    Kalantar, N.
    Kanungo, R.
    Sampson, J.
    Fetisov, A.
    Barbieri, C.
    Bendel, M.
    Gourishetty, A.
    Wimmer, K.
    Ghosh, T.
    Kiselev, O.
    Berjillos, R.
    Blumenfeld, Y.
    Nilsson, T.
    AlGhamdi, S.
    Krupko, S.
    Marganiec, J.
    Bracco, A.
    Enders, J.
    Vikhrov, V.
    Altstadt, S.
    Nolan, P.
    Sarriguren, P.
    Ignatov, A.
    Thomas, T.
    Lemasson, A.
    Marusov, V.
    Langer, C.
    Cortina-Gil, D.
    Schmidt, S.
    Boretzky, K.
    Simpson, E.
    Teubig, P.
    Joshi, P.
    Kumar, S.
    Ribeiro, G.
    Sonnabend, K.
    Khanzadeev, A.
    Simon, H.
    Glorius, J.
    Krücken, R.
    Bonaccorso, A.
    Sanjari, S.
    Zuber, K.
    Fonseca, M.
    Gasques, L.
    Friese, J.
    Riisager, K.
    Adachi, T.
    Seddon, D.
    Scheidenberger, C.
    Silva, J.
    Richter, A.
    Wyss, R.
    Strieder, F.
    Perez, M. Martinez
    Wiescher, M.
    Chulkov, L.
    Fraile, L.
    Hass, M.
    Vignote, J. Rodriguez
    Vajta, Z.
    Westerberg, L.
    Stach, D.
    Potlog, P.
    AlGarawi, M.
    Moreno, O.
    Ter-Akopian, G.
    Volkov, V.
    Henriques, A.
    Crespo, R.
    Sherrill, B.
    Herraiz, J. Lopez
    Nakamura, T.
    Uberseder, E.
    Rout, P.
    Krings, T.
    Sarkar, M. Saha
    Bloch, T.
    Blasi, N.
    Zieblinski, M.
    Zilges, A.
    Alkhazov, G.
    Roy, S.
    Botvina, A.
    Winkel, M.
    Bemmerer, D.
    Hennig, A.
    Million, B.
    Löher, B.
    Kresan, D.
    Harakeh, M.
    Bacri, C.
    Beinrucker, C.
    Petri, M.
    Freer, M.
    Alvarez-Pol, H.
    Prokofiev, A.
    Krumbholz, A.
    Plag, R.
    Benzoni, G.
    Caesar, C.
    Göbel, K.
    Golubev, P.
    Yavor, M.
    Beck, C.
    Zhdanov, A.
    Caamano, M.
    Wamers, F.
    Novatsky, B.
    Thies, R.
    Boudard, A.
    Rossi, D.
    Rios, A.
    Krasznahorkay, A.
    DiJulio, D.
    Takechi, M.
    Kezzar, K.
    Dostawca treści:
    Repozytorium Uniwersytetu Jagiellońskiego
    Inne
    Tytuł:
    Multi-ethnic genome-wide association study for atrial fibrillation
    Autorzy:
    Woo, Daniel
    Cole, John W.
    Aeschbacher, Stefanie
    Delgado, Graciela
    Yang, Pil-Sung
    Roden, Dan M.
    Schurman, Claudia
    Cook, James
    Gudnason, Vilmundur
    Bloom, Heather L.
    Morris, Andrew P.
    Mahajan, Anubha
    Low, Siew-Kee
    Nikus, Kjell
    Chung, Mina K.
    Schnabel, Renate B.
    London, Barry
    Smith, Albert V.
    Benjamin, Emelia J.
    Nazarian, Saman
    Launer, Lenore J.
    Shaffer, Christian
    Lin, Honghuang
    Daniels, Brian R.
    Risch, Lorenz
    Lubitz, Steven A.
    Lunetta, Kathryn L.
    Anderson, Christopher D.
    Sun, Han
    Margolin, Lauren
    Campbell, Archie
    Laurikka, Jari
    Rosand, Jonathan
    Mohanty, Sanghamitra
    Margulies, Kenneth B.
    Shalaby, Alaa A.
    Tanriverdi, Kahraman
    Lindgren, Cecilia M.
    Kleber, Marcus E.
    Rader, Daniel J.
    Stricker, Bruno H.
    Dichgans, Martin
    Guo, Xiuqing
    Ingelsson, Erik
    Uitterlinden, Andre G.
    Esko, Tonu
    Rienstra, Michiel
    Krieger, Jose E.
    Conen, David
    Johnson, Renee
    Tucker, Nathan R.
    Sun, Albert
    Wells, Quinn S.
    Yao, Jie
    Zeng, Lingyao
    Wang, Biqi
    Harris, Tamara B.
    Cutler, Michael J.
    Cappola, Thomas P.
    Felix, Stephan B.
    Orho-Melander, Marju
    Kaab, Stefan
    Rost, Natalia
    Smith, J. Gustav
    Ipek, Esra Gucuk
    Loos, Ruth J.F.
    Smith, Jonathan D.
    Taylor, Kent D.
    Weijs, Bob
    Worrall, Bradford B.
    Yoneda, Zachary T.
    Weiss, Raul
    Pereira, Alexandre
    Tanaka, Toshihiro
    Niemeijer, Maartje N.
    Gutmann, Rebecca
    Schramm, Katharina
    Choi, Eue-Keun
    Magnusson, Patrik K.
    Tveit, Arnljot
    Chen, Lin Y.
    Seppala, Ilkka
    Carlquist, John
    Pak, Hui-Nam
    Bartz, Traci M.
    Thériault, Sébastien
    Dorr, Marcus
    Hocking, Lynne J.
    Crijns, Harry J.
    Paré, Guillaume
    Neumann, Benjamin
    Padmanabhan, Sandosh
    Kirchhof, Paulus
    Scott, Stuart A.
    Saba, Samir
    Lehtimaki, Terho
    Leineweber, Kirsten
    Montgomery, Jay A.
    Refsgaard, Lena
    Shah, Svati
    Katschnig-Winter, Petra
    Chasman, Daniel I.
    Ito, Kaoru
    Smith, Blair H.
    Grewal, Raji P.
    Fatkin, Diane
    Knight, Stacey
    Sinisalo, Juha
    Weiss, Stefan
    Huang, Jie
    Gustafsson, Stefan
    Alonso, Alvaro
    Bottinger, Erwin B.
    Smith, Nicholas L.
    Kane, John P.
    Kietselaer, Bas L.
    Huang, Paul L.
    Zeller, Tanja
    Geelhoed, Bastiaan
    Lokki, Marja-Liisa
    Marz, Winfried
    Trompet, Stella
    Ahlberg, Gustav
    Lu, Yingchang
    Ridker, Paul M.
    Kamatani, Yoichiro
    Kahonen, Mika
    Jimenez-Conde, Jordi
    Aragam, Krishna G.
    Olesen, Morten S.
    Pera, Joanna
    Huffman, Jennifer
    Psaty, Bruce M.
    Noordam, Raymond
    Van Wagoner, David R.
    Brody, Jennifer A.
    Weeke, Peter E.
    Damrauer, Scott M.
    Weng, Lu-Chen
    Lim, Hong Euy
    Denny, Joshua C.
    Pulit, Sara L.
    Choi, Seung Hoan
    Albert, Christine M.
    McManus, David D.
    Melander, Olle
    Siland, Joylene E.
    Chaffin, Mark D.
    Barnard, John
    Dudley, Samuel C.
    Ford, Ian
    Pullinger, Clive R.
    Lind, Lars
    Lemaitre, Rozenn N.
    Pedersen, Nancy L.
    Natale, Andrea
    Ribasés, Marta
    Hayward, Caroline
    Christophersen, Ingrid E.
    Teder-Laving, Maris
    Volker, Uwe
    Bis, Joshua C.
    Li, Man
    Shim, Jaemin
    Rotter, Jerome I.
    Verweij, Niek
    Kastrati, Adnan
    Shoemaker, M. Benjamin
    Nilsson, Peter
    Kathiresan, Sekar
    Dudink, Elton A.
    Horimoto, Andrea R.V.R.
    Słowik, Agnieszka
    Schunkert, Heribert
    Wiggins, Kerri L.
    Kubo, Michiaki
    Boerwinkle, Eric
    Malik, Rainer
    Oellers, Heidi
    Hofman, Albert
    Hamsten, Anders
    Teumer, Alexander
    Newton-Cheh, Christopher
    Muller-Nurasyid, Martina
    Soliman, Elsayed Z.
    Kavousi, Maryam
    Sotoodehnia, Nona
    Roselli, Carolina
    Chen, Yii-Der Ida
    Calkins, Hugh
    Heckbert, Susan R.
    Mansur, Alfredo J.
    Morley, Michael P.
    Lyytikainen, Leo-Pekka
    Svendsen, Jesper H.
    Vlachopoulou, Efthymia
    Porteous, David
    Ellinor, Patrick T.
    Esa, Nada
    Van Gelder, Isabelle C.
    Darbar, Dawood
    Hernesniemi, Jussi
    Kessler, Thorsten
    Jukema, J. Wouter
    Wong, Jorge A.
    Gupta, Namrata
    Lin, Henry J.
    Arking, Dan E.
    Marcus, Gregory M.
    Bihlmeyer, Nathan A.
    Sandhu, Roopinder K.
    Almgren, Peter
    Eskola, Markku
    Macfarlane, Peter W.
    van der Harst, Pim
    Rosenberg, Michael A.
    Sinner, Moritz F.
    Franco, Oscar H.
    Dostawca treści:
    Repozytorium Uniwersytetu Jagiellońskiego
    Artykuł
    Tytuł:
    Apophis planetary defense campaign
    Autorzy:
    Sonbas, Eda
    Bressi, Terry H.
    Farnocchia, Davide
    Falco, Carmelo
    Morate, David
    Weryk, Robert
    Yim, Hong-Suh
    Chastel, Serge
    Marsset, Michael
    Larsen, Jeffrey A.
    Mastaler, Ron A.
    Licandro, Javier
    Taylor, Patrick A.
    Pérez-Toledo, Fabricio
    Warner, Elizabeth
    Heinze, Aren N.
    Cantillo, David
    Kamiński, Krzysztof
    Weiland, Henry J.
    Kokina, Tatiana
    Kaplan, Murat
    Perminov, Alexander
    Reddy, Vishnu
    Kim, Myung-Jin
    Chingis, Omarov
    Kelley, Michael S.
    Brozovic, Marina
    Kamińska, Monika K.
    Lees, Robert C.
    Micheli, Marco
    Bauer, James
    Mathias, Donovan L.
    Satpathy, Akash
    Michel, Patrick
    Moon, Hong-Kyu
    Alarcon, Miguel R.
    Serebryanskiy, Aleksander
    de León, Julia
    Elenin, Leonid
    Kim, Dong-Heun
    Ogłoza, Waldemar
    Choi, Young-Jun
    Kaiser, Galina
    Mainzer, Amy
    Szakáts, Robert
    Christensen, Eric
    Janse van Rensburg, Petro
    Nastasi, Alessandro
    Scotti, James V.
    Cennamo, Ramona
    Jacques, Cristovao
    Glamazda, Dmitry
    Ivanov, Alexander
    McMillan, Robert S.
    Lee, Hee-Jae
    Serra-Ricart, Miquel
    Novichonok, Artem
    Pál, András
    Marciniak, Anna
    Buzzi, Luca
    Popescu, Marcel
    Tubbiolo, Andrew F.
    Brucker, Melissa J.
    Graziani, Filippo
    Medeiros, Hissa
    Schmalz, Sergei
    Kuznetsov, Eduard
    Dróżdż, Marek
    Holman, Matthew J.
    Kiss, Csaba
    Read, Mike T.
    Mokhnatkin, Artem
    Zoła, Stanisław
    Bell, David
    Zhornichenko, Anastasiya
    Faggioli, Laura
    Roh, Dong-Goo
    Veres, Peter
    Reva, Inna
    Erasmus, Nicolas
    Polishook, David
    Naidu, Shantanu P.
    Benner, Lance A. M.
    Wiebe, Yulia
    Wheeler, Lorien F.
    Petrescu, Elisabeta
    Tonry, John L.
    Masiero, Joseph
    Rumpf, Clemens
    Erece, Orhan
    Reichart, Daniel E.
    Barnardi, Fabrizio
    Denneau, Larry
    Balam, David
    Żejmo, Michał
    Cano, Juan
    Wells, Guy
    Dotson, Jessie
    Wainscoat, Richard
    Bamberger, Daniel
    Opis:
    We describe results of a planetary defense exercise conducted during the close approach to Earth by the near-Earth asteroid (99942) Apophis during 2020 December–2021 March. The planetary defense community has been conducting observational campaigns since 2017 to test the operational readiness of the global planetary defense capabilities. These community-led global exercises were carried out with the support of NASA's Planetary Defense Coordination Office and the International Asteroid Warning Network. The Apophis campaign is the third in our series of planetary defense exercises. The goal of this campaign was to recover, track, and characterize Apophis as a potential impactor to exercise the planetary defense system including observations, hypothetical risk assessment and risk prediction, and hazard communication. Based on the campaign results, we present lessons learned about our ability to observe and model a potential impactor. Data products derived from astrometric observations were available for inclusion in our risk assessment model almost immediately, allowing real-time updates to the impact probability calculation and possible impact locations. An early NEOWISE diameter measurement provided a significant improvement in the uncertainty on the range of hypothetical impact outcomes. The availability of different characterization methods such as photometry, spectroscopy, and radar provided robustness to our ability to assess the potential impact risk.
    Dostawca treści:
    Repozytorium Uniwersytetu Jagiellońskiego
    Artykuł
      Wyświetlanie 1-7 z 7

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