Search

Your search keyword '"Riedo A."' showing total 1,829 results
Start Over Author "Riedo A."
1,829 results on '"Riedo A."'

2. ORIGIN: Laser Desorption Ionization Mass Spectrometry of Nucleobases for In Situ Space Exploration

Author

Nikita J. Boeren, Peter Keresztes Schmidt, Marek Tulej, Peter Wurz, and Andreas Riedo

Subjects
Time-of-flight mass spectrometry, Biosignatures, Astrobiology, Pre-biotic astrochemistry, Astrochemistry, Space vehicle instruments, Astronomy, QB1-991
Abstract

The ORganics Information Gathering INstrument (ORIGIN) is a space-prototype laser desorption ionization mass spectrometer designed to analyze molecular biosignatures. Nucleobases, fundamental components of nucleic acids, have been found in carbonaceous meteorites and in returned samples from the asteroid Ryugu, which suggest their extraterrestrial origin and possibly their significance in prebiotic chemistry and the RNA world hypothesis. Therefore, future space missions should be equipped for the in situ detection of nucleobases at relevant concentrations. This study investigated six nucleobases—adenine, cytosine, 5-methylcytosine, guanine, thymine, and uracil—using the ORIGIN setup. All six are readily detected and identified, with the mass spectra showing parent ions and minimal fragmentation. Mixture analyses illustrate the instrument's quantitative potential. The detection limit for adenine was 52 fmol mm ^–2 , and we show that sensitivity can be further improved by increasing detector voltage and sampling more positions. This study demonstrates ORIGIN’s capability to detect nucleobases at trace abundance levels. The detection of nucleobases and other molecular biosignatures on other planetary objects might offer new insights into the origin of life on Earth and the possibility of discovering life beyond our planet.

Published
2025
Full Text
View/download PDF

3. HIV-1 subtype-specific drug resistance on dolutegravir-based antiretroviral therapy: protocol for a multicentre study (DTG RESIST)

Author

Stefanie Hossmann, Antoine Jaquet, Matthias Egger, Richard Lessells, Jeremy Ross, Mamatha Sauermann, Tom Loosli, Selma Riedo, Niko Beerenwinkel, Albert Minga, Jennifer Giandhari, and Roger D Kouyos

Subjects
Medicine
Abstract

Introduction HIV drug resistance poses a challenge to the United Nation’s goal of ending the HIV/AIDS epidemic. The integrase strand transfer inhibitor (InSTI) dolutegravir, which has a higher resistance barrier, was endorsed by the WHO in 2019 for first-line, second-line and third-line antiretroviral therapy (ART). This multiplicity of roles of dolutegravir in ART may facilitate the emergence of dolutegravir resistance.Methods and analysis Nested within the International epidemiology Databases to Evaluate AIDS (IeDEA), DTG RESIST is a multicentre study of adults and adolescents living with HIV in sub-Saharan Africa, Asia, and South and Central America who experienced virological failure on dolutegravir-based ART. At the time of virological failure, whole blood will be collected and processed to prepare plasma or dried blood spots. Laboratories in Durban, Mexico City and Bangkok will perform genotyping. Analyses will focus on (1) individuals who experienced virological failure on dolutegravir and (2) those who started or switched to such a regimen and were at risk of virological failure. For population (1), the outcome will be any InSTI drug resistance mutations, and for population (2) virological failure is defined as a viral load >1000 copies/mL. Phenotypic testing will focus on non-B subtype viruses with major InSTI resistance mutations. Bayesian evolutionary models will explore and predict treatment failure genotypes. The study will have intermediate statistical power to detect differences in resistance mutation prevalence between major HIV-1 subtypes; ample power to identify risk factors for virological failure and limited power for analysing factors associated with individual InSTI drug resistance mutations.Ethics and dissemination The research protocol was approved by the Biomedical Research Ethics Committee at the University of KwaZulu-Natal, South Africa and the Ethics Committee of the Canton of Bern, Switzerland. All sites participate in International epidemiology Databases to Evaluate AIDS and have obtained ethics approval from their local ethics committee to collect additional data.Trial registration number NCT06285110.

Published
2024
Full Text
View/download PDF

4. Immunomodulators for immunocompromised patients hospitalized for COVID-19: a meta-analysis of randomized controlled trials

Author

Hermine, Olivier, Mariette, Xavier, Ravaud, Philippe, Bureau, Serge, Dougados, Maxime, Resche-Rigon, Matthieu, Tharaux, Pierre-Louis, Tibi, Annick, Azoulay, Elie, Cadranel, Jacques, Emmerich, Joseph, Fartoukh, Muriel, Guidet, Bertrand, Humbert, Marc, Lacombe, Karine, Mahevas, Matthieu, Pene, Frédéric, Porcher, Raphaël, Pourchet-Martinez, Valerie, Schlemmer, Frédéric, Yazdanpanah, Yazdan, Baron, Gabriel, Perrodeau, Elodie, Vanhoye, Damien, Kedzia, Cécile, Demerville, Lauren, Gysembergh-Houal, Anne, Bourgoin, Alexandre, Raked, Nabil, Mameri, Lakhdar, Montlahuc, Claire, Biard, Lucie, Alary, St.phanie, Hamiria, Samir, Bariz, Thinhinane, Semri, Hala, Hai, Dhiaa Meriem, Benafla, Moustafa, Belloul, Mohamed, Vauboin, Pernelle, Flamand, Saskia, Pacheco, Claire, Walter-Petrich, Anouk, Stan, Emilia, Benarab, Souad, Nyanou, Corine, Charreteur, Robin, Dupre, Céline, Cardet, Kévin, Lehmann, Blandine, Baghli, Kamyl, Madelaine, Claire, D'Ortenzio, Eric, Puéchal, Oriane, Semaille, Caroline, Savale, Laurent, Harrois, Anatole, Figueiredo, Samy, Duranteau, Jacques, Anguel, Nadia, Pavot, Arthur, Monnet, Xavier, Richard, Christian, Teboul, Jean-Louis, Durand, Philippe, Tissieres, Pierre, Jevnikar, Mitja, Montani, David, Pavy, Stephan, Nocturne, Gaétane, Bitoun, Samuel, Noel, Nicolas, Lambotte, Olivier, Escaut, Lelia, Jauréguiberry, Stephane, Baudry, Elodie, Verny, Christiane, Lefevre, Edouard, Zaidan, Mohamad, Molinari, Domitille, Leprun, Gaël, Fourreau, Alain, Cylly, Laurent, Grimaldi, Lamiae, Virlouvet, Myriam, Meftali, Ramdane, Fabre, Soléne, Licois, Marion, Mamoune, Asmaa, Boudali, Yacine, Le Tiec, Clotilde, Verstuyft, Céline, Roques, Anne-Marie, Georgin-Lavialle, Sophie, Senet, Patricia, Pialoux, Gilles, Soria, Angele, Parrot, Antoine, François, Helene, Rozensztajn, Nathalie, Blin, Emmanuelle, Choinier, Pascaline, Camuset, Juliette, Rech, Jean-Simon, Canellas, Antony, Rolland-Debord, Camille, Lemarié, Nadege, Belaube, Nicolas, Nadal, Marine, Siguier, Martin, Petit-Hoang, Camille, Chas, Julie, Drouet, Elodie, Lemoine, Matthieu, Phibel, Audrey, Aunay, Lucie, Bertrand, Eliane, Ravato, Sylviane, Vayssettes, Marie, Adda, Anne, Wilpotte, Celine, Thibaut, Pélagie, Fillon, Julie, Debrix, Isabelle, Fellahi, Soraya, Bastard, Jean-Philippe, Lefévre, Guillaume, Gottenberg, Jacques-Eric, Hansmann, Yves, Blanc, Frédéric, Ohlmann-Caillard, Sophie, Castelain, Vincent, Chatelus, Emmanuel, Chatron, Eva, Collange, Olivier, Danion, François, De Blay, Frédéric, Diemunsch, Pierre, Diemunsch, Sophie, Felten, Renaud, Goichot, Bernard, Greigert, Valentin, Guffroy, Aurelien, Heger, Bob, Kaeuffer, Charlotte, Kassegne, Loic, Korganow, Anne Sophie, Le Borgne, Pierrick, Lefebvre, Nicolas, Mertes, Paul-Michel, Noll, Eric, Oberlin, Mathieu, Poindron, Vincent, Pottecher, Julien, Ruch, Yvon, Weill, François, Meyer, Nicolas, Andres, Emmanuel, Demonsant, Eric, Tayebi, Hakim, Nisand, Gabriel, Brin, Stéphane, Sublon, Cédric, Becker, Guillaume, Hutt, Anne, Martin, Tristan, Bayer, Sophie, Metzger, Catherine, Mekinian, Arsene, Abisror, Noémie, Adedjouma, Amir, Bollens, Diane, Bonneton, Marion, Bourcicaux, Nathalie, Bourrier, Anne, Thibault Chiarabiani, Maria Chauchard, Chopin, Doroth.e, Cohen, Jonathan, Devred, Ines, Donadille, Bruno, Fain, Olivier, Hariri, Geoffrey, Jachiet, Vincent, Ingliz, Patrick, Garnier, Marc, Gatfosse, Marc, Ghrenassia, Etienne, Gobert, Delphine, Krause le Garrec, Jessica, Landman, Cecilia, Lavillegrand, Jean Remy, Lefebvre, Benedicte, Mahevas, Thibault, Mazerand, Sandie, Meynard, Jean Luc, Morgand, Marjolaine, Ouaz.ne, Zineb, Pacanowski, Jerome, Riviere, S.bastien, Seksik, Philippe, Sokol, Harry, Soliman, Heithem, Valin, Nadia, Urbina, Thomas, McAvoy, Chloé, Miranda, Maria Pereira, Aratus, Gladys, Berard, Laurence, Simon, Tabassome, Nguyen, Anne Daguenel, Girault, Elise, Mayala-Kanda, Cl.mentine, Antignac, Marie, Leplay, Céline, Arlet, Jean-Benoit, Diehl, Jean-Luc, Bellenfant, Florence, Blanchard, Anne, Buffet, Alexandre, Cholley, Bernard, Fayol, Antoine, Flamarion, Edouard, Godier, Anne, Gorget, Thomas, Hamada, Sophie-Rym, Hauw-Berlemont, Caroline, Hulot, Jean-Sébastien, Lebeaux, David, Livrozet, Marine, Michon, Adrien, Neuschwander, Arthur, Pennet, Marie-Aude, Planquette, Benjamin, Ranque, Brigitte, Sanchez, Olivier, Volle, Geoffroy, Briois, Sandrine, Cornic, Mathias, Elisee, Virginie, Denis, Jesuthasan, Djadi-Prat, Juliette, Jouany, Pauline, Junquera, Ramon, Henriques, Mickael, Kebir, Amina, Lehir, Isabelle, Meunier, Jeanne, Patin, Florence, Paquet, Val.rie, Tréhan, Anne, Vigna, Véronique, Sabatier, Brigitte, Bergerot, Damien, Jouve, Charléne, Knosp, Camille, Lenoir, Olivia, Mahtal, Nassim, Resmini, Léa, Lescure, Xavier, Ghosn, Jade, Bachelard, Antoine, Rachline, Anne, Isernia, Valentina, Bao-chau, Phung, Vallois, Dorothée, Sautereau, Aurelie, Neukrich, Catherine, Dossier, Antoine, Borie, Raphaël, Crestani, Bruno, Ducrocq, Gregory, Steg, Philippe Gabriel, Dieude, Philippe, Papo, Thomas, Marcault, Estelle, Chaudhry, Marhaba, Da Silveira, Charléne, Metois, Annabelle, Mahenni, Ismahan, Meziani, Meriam, Nilusmas, Cyndie, Le Gac, Sylvie, Ndiaye, Awa, Louni, Fran.oise, Chansombat, Malikhone, Julia, Zelie, Chalal, Solaya, Chalal, Lynda, Kramer, Laura, Le Grand, Jeniffer, Ouifiya, Kafif, Piquard, Valentine, Tubiana, Sarah, Nguyen, Yann, Honsel, Vasco, Weiss, Emmanuel, Codorniu, Anais, Zarrouk, Virginie, de Lastours, Victoire, Uzzan, Matthieu, Gamany, Naura, Claveirole, Agathe, Navid, Alexandre, Fouque, Tiffanie, Cohen, Yonathan, Lupo, Maya, Gilles, Constance, Rahli, Roza, Louis, Zeina, Boutboul, David, Galicier, Lionel, Amara, Yaël, Archer, Gabrielle, Benattia, Amira, Bergeron, Anne, Bondeelle, Louise, de Castro, Nathalie, Clément, Melissa, Darmon, Michaël, Denis, Blandine, Dupin, Clairelyne, Feredj, Elsa, Feyeux, Delphine, Joseph, Adrien, Lenglin, Etienne, Le Guen, Pierre, Liégeon, Geoffroy, Lorillon, Gwenaël, Mabrouki, Asma, Mariotte, Eric, Martin de Frémont, Grégoire, Mirouse, Adrien, Molina, Jean-Michel, Peffault de Latour, Régis, Oksenhendler, Eric, Saussereau, Julien, Tazi, Abdellatif, Tudesq, Jean-Jacques, Zafrani, Lara, Brindele, Isabelle, Bugnet, Emmanuelle, Lebras, Karine Celli, Chabert, Julien, Djaghout, Lamia, Fauvaux, Catherine, Jegu, Anne Lise, Kozakiewicz, Ewa, Meunier, Martine, Tremorin, Marie-Thérèse, Davoine, Claire, Madelaine, Isabelle, Caillat-Zucman, Sophie, Delaugerre, Constance, Morin, Florence, Sène, Damien, Burlacu, Ruxandra, Chousterman, Benjamin, Mégarbanne, Bruno, Richette, Pascal, Riveline, Jean-Pierre, Frazier, Aline, Vicaut, Eric, Berton, Laure, Hadjam, Tassadit, Vazquez-Ibarra, Miguel Alejandro, Jourdaine, Clément, Tran, Olivia, Jouis, Véronique, Jacob, Aude, Smati, Julie, Renaud, Stéphane, Pernin, Claire, Suarez, Lydia, Semerano, Luca, Abad, Sébastien, nainous, Ruben B., Bonnet, Nicolas, Comparon, Celine, Cohen, Yves, Cordel, Hugues, Dhote, Robin, Dournon, Nathalie, Duchemann, Boris, Ebstein, Nathan, Gille, Thomas, Giroux-Leprieur, Benedicte, Goupil de Bouille, Jeanne, Nunes, Hilario, Oziel, Johanna, Roulot, Dominique, Sese, Lucile, ClaireTantet, Uzunhan, Yurdagul, Bloch-Queyrat, Coralie, Levy, Vincent, Messani, Fadhila, Rahaoui, Mohammed, Petit, Myléne, Brahmi, Sabrina, Rathoin, Vanessa, Rigal, Marthe, Costedoat-Chalumeau, Nathalie, Luong, Liem Binh, Hamou, Zakaria Ait, Benghanem, Sarah, Blanche, Philippe, Carlier, Nicolas, Chaigne, Benjamin, Gauzit, Remy, Joumaa, Hassan, Jozwiak, Mathieu, Lachétre, Marie, Lafoeste, Hélène, Launay, Odie, Legendre, Paul, Marey, Jonathan, Morbieu, Caroline, Palmieri, Lola-Jade, Szwebel, Tali-Anne, Abdoul, Hendy, Bruneau, Alexandra, Beclin-Clabaux, Audrey, Larrieu, Charly, Montanari, Pierre, Dufour, Eric, Clarke, Ada, Le Bourlout, Catherine, Marin, Nathalie, Menage, Nathalie, Saleh-Mghir, Samira, Cisse, Mamadou Salif, Cheref, Kahina, Guerin, Corinne, Zerbit, Jérémie, Michel, Marc, Gallien, Sébastien, Crickx, Etienne, Le Vavasseur, Benjamin, Kempf, Emmanuelle, Jaffal, Karim, Vindrios, William, Oniszczuk, Julie, Guillaud, Constance, Lim, Pascal, Fois, Elena, Melica, Giovanna, Matignon, Marie, Jalabert, Maud, Lelièvre, Jean-Daniel, Schmitz, David, Bourhis, Marion, Belazouz, Sylia, Languille, Laetitia, Boucle, Caroline, Cita, Nelly, Didier, Agnés, Froura, Fahem, Ledudal, Katia, Sadaoui, Thiziri, Thiemele, Alaki, Le Febvre De Bailly, Delphine, Verlinde, Muriel Carvhalo, Mayaux, Julien, Cacoub, Patrice, Saadoun, David, Vautier, Mathieu, Bugaut, Héléne, Benveniste, Olivier, Allenbach, Yves, Leroux, Gaëlle, Rigolet, Aude, Guillaume-Jugnot, Perrine, Domont, Fanny, Desbois, Anne Claire, Comarmond, Chloé, Champtiaux, Nicolas, Toquet, Segolene, Ghembaza, Amine, Vieira, Matheus, Maalouf, Georgina, Boleto, Goncalo, Ferfar, Yasmina, Corvol, Jean-Christophe, Louapre, C.line, Sambin, Sara, Mariani, Louise-Laure, Karachi, Carine, Tubach, Florence, Estellat, Candice, Gimeno, Linda, Martin, Karine, Bah, Aicha, Keo, Vixra, Ouamri, Sabrine, Messaoudi, Yasmine, Yelles, Nessima, Faye, Pierre, Cavelot, Sebastien, Larcheveque, Cecile, Annonay, Laurence, Benhida, Jaouad, Zahrate-Ghoul, Aida, Hammal, Soumeya, Belilita, Ridha, Charbonnier, Fanny, Aguilar, Claire, Alby-Laurent, Fanny, Burger, Carole, Campos-Vega, Clara, Chavarot, Nathalie, Fournier, Benjamin, Rouzaud, Claire, Vimpére, Damien, Elie, Caroline, Bakouboula, Prissile, Choupeaux, Laure, Granville, Sophie, Issorat, Elodie, Broissand, Christine, Alyanakian, Marie-Alexandra, Geri, Guillaume, Derridj, Nawal, Sguiouar, Naima, Meddah, Hakim, Djadel, Mourad, Chambrin-Lauvray, Héléne, Duclos-vallée, Jean-Charles, Saliba, Faouzi, Sacleux, Sophie-Caroline, Kounis, Ilias, Tamazirt, Sonia, Rudant, Eric, Michot, Jean-Marie, Stoclin, Annabelle, Colomba, Emeline, Pommeret, Fanny, Willekens, Christophe, Da Silva, Rosa, Dejean, Valérie, Mekid, Yasmina, Ben-Mabrouk, Ines, Netzer, Florence, Pradon, Caroline, Drouard, Laurence, Camara-Clayette, Valérie, Morel, Alexandre, Garcia, Gilles, Mohebbi, Abolfazl, Berbour, Férial, Dehais, Mélanie, Pouliquen, Anne-Lise, Klasen, Alison, Soyez-Herkert, Loren, London, Jonathan, Keroumi, Younes, Guillot, Emmanuelle, Grailles, Guillaume, El amine, Younes, Defrancq, Fanny, Fodil, Hanane, Bouras, Chaouki, Dautel, Dominique, Gambier, Nicolas, Dieye, Thierno, Bienvenu, Boris, Lancon, Victor, Lecomte, Laurence, Beziriganyan, Kristina, Asselate, Belkacem, Allanic, Laure, Kiouris, Elena, Legros, Marie-Héléne, Lemagner, Christine, Martel, Pascal, Provitolo, Vincent, Ackermann, Félix, Le Marchand, Mathilde, Chan Hew Wai, Aurélie, Fremont, Dimitri, Coupez, Elisabeth, Adda, Mireille, Duée, Frédéric, Bernard, Lise, Gros, Antoine, Henry, Estelle, Courtin, Claire, Pattyn, Anne, Guinot, Pierre-Grégoire, Bardou, Marc, Maurer, Agnes, Jambon, Julie, Cransac, Amélie, Pernot, Corinne, Mourvillier, Bruno, Marquis, Eric, Benoit, Philippe, Roux, Damien, Gernez, Coralie, Yelnik, Cécile, Poissy, Julien, Nizard, Mandy, Denies, Fanette, Gros, Helene, Mourad, Jean-Jacques, Sacco, Emmanuelle, Renet, Sophie, Ader, F., Yazdanpanah, Y., Mentre, F., Peiffer-Smadja, N., Lescure, F.X., Poissy, J., Bouadma, L., Timsit, J.F., Lina, B., Morfin-Sherpa, F., Bouscambert, M., Gaymard, A., Peytavin, G., Abel, L., Guedj, J., Andrejak, C., Burdet, C., Laouenan, C., Belhadi, D., Dupont, A., Alfaiate, T., Basli, B., Chair, A., Laribi, S., Level, J., Schneider, M., Tellier, M.C., Dechanet, A., Costagliola, D., Terrier, B., Ohana, M., Couffin-Cadiergues, S., Esperou, H., Delmas, C., Saillard, J., Fougerou, C., Moinot, L., Wittkop, L., Cagnot, C., Le Mestre, S., Lebrasseur-Longuet, D., Petrov-Sanchez, V., Diallo, A., Mercier, N., Icard, V., Leveau, B., Tubiana, S., Hamze, B., Gelley, A., Noret, M., D’Ortenzio, E., Puechal, O., Semaille, C., Welte, T., Paiva, J.A., Halanova, M., Kieny, M.P., Balssa, E., Birkle, C., Gibowski, S., Landry, E., Le Goff, A., Moachon, L., Moins, C., Wadouachi, L., Paul, C., Levier, A., Bougon, D., Djossou, F., Epelboin, L., Dellamonica, J., Marquette, C.H., Robert, C., Gibot, S., Senneville, E., Jean-Michel, V., Zerbib, Y., Chirouze, C., Boyer, A., Cazanave, C., Gruson, D., Malvy, D., Andreu, P., Quenot, J.P., Terzi, N., Faure, K., Chabartier, C., Le Moing, V., Klouche, K., Ferry, T., F, Valour, Gaborit, B., Canet, E., Le Turnier, P., Boutoille, D., Bani-Sadr, F., Benezit, F., Revest, M., Cameli, C., Caro, A., Um Tegue, MJ Ngo, Le Tulzo, Y., Laviolle, B., Laine, F., Thiery, G., Meziani, F., Hansmann, Y., Oulehri, W., Tacquard, C., Vardon-Bounes, F., Riu-Poulenc, B., Murris-Espin, M., Bernard, L., Garot, D., Hinschberger, O., Martinot, M., Bruel, C., Pilmis, B., Bouchaud, O., Loubet, P., Roger, C., Monnet, X., Figueiredo, S., Godard, V., Mira, J.P., Lachatre, M., Kerneis, S., Aboab, J., Sayre, N., Crockett, F., Lebeaux, D., Buffet, A., Diehl, J.L., Fayol, A., Hulot, J.S., Livrozet, M., Dessap, A Mekontso, Ficko, C., Stefan, F., Le Pavec, J., Mayaux, J., Ait-Oufella, H., Molina, J.M., Pialoux, G., Fartoukh, M., Textoris, J., Brossard, M., Essat, A., Netzer, E., Riault, Y., Ghislain, M., Beniguel, L., Genin, M., Gouichiche, L., Betard, C., Belkhir, L., Altdorfer, A., Centro, V Fraipont, Braz, S., Ribeiro, JM Ferreira, Alburqueque, R Roncon, Berna, M., Alexandre, M., Lamprecht, B., Egle, A., Greil, R., Joannidis, M., Patterson, Thomas F., Ponce, Philip O., Taylor, Barbara S., Patterson, Jan E., Bowling, Jason E., Javeri, Heta, Kalil, Andre C., Larson, LuAnn, Hewlett, Angela, Mehta, Aneesh K., Rouphael, Nadine G., Saklawi, Youssef, Scanlon, Nicholas, Traenkner, Jessica J., Trible, Ronald P., Jr., Walter, Emmanuel B., Ivey, Noel, Holland, Thomas L., Ruiz-Palacios, Guillermo M., Ponce de León, Alfredo, Rajme, Sandra, Hsieh, Lanny, Amin, Alpesh N., Watanabe, Miki, Lee, Helen S., Kline, Susan, Billings, Joanne, Noren, Brooke, Kim, Hyun, Bold, Tyler D., Tapson, Victor, Grein, Jonathan, Sutterwala, Fayyaz, Iovine, Nicole, Beattie, Lars K., Wakeman, Rebecca Murray, Shaw, Matthew, Jain, Mamta K., Mocherla, Satish, Meisner, Jessica, Luque, Amneris, Sweeney, Daniel A., Benson, Constance A., Ali, Farhana, Atmar, Robert L., El Sahly, Hana M., Whitaker, Jennifer, Falsey, Ann R., Branche, Angela R., Rozario, Cheryl, Pineda, Justino Regalado, Martinez-Orozco, José Arturo, Lye, David Chien, Ong, Sean WX., Chia, Po Ying, Young, Barnaby E., Sandkovsky, Uriel, Berhe, Mezgebe, Haley, Clinton, Dishner, Emma, Cantos, Valeria D., Kelley, Colleen F., Rebolledo Esteinou, Paulina A., Kandiah, Sheetal, Doernberg, Sarah B., Crouch, Pierre-Cedric B., Jang, Hannah, Luetkemeyer, Anne F., Dwyer, Jay, Cohen, Stuart H., Thompson, George R., 3rd, Nguyen, Hien H., Finberg, Robert W., Wang, Jennifer P., Perez-Velazquez, Juan, Wessolossky, Mireya, Jackson, Patrick E.H., Bell, Taison D., West, Miranda J., Taiwo, Babafemi, Krueger, Karen, Perez, Johnny, Pearson, Triniece, Paules, Catharine I., Julian, Kathleen G., Ahmad, Danish, Hajduczok, Alexander G., Arguinchona, Henry, Arguinchona, Christa, Erdmann, Nathaniel, Goepfert, Paul, Ahuja, Neera, Frank, Maria G., Wyles, David, Young, Heather, Oh, Myoung-don, Park, Wan Beom, Kang, Chang Kyung, Marconi, Vincent, Moanna, Abeer, Cribbs, Sushma, Harrison, Telisha, Kim, Eu Suk, Jung, Jongtak, Song, Kyoung-Ho, Kim, Hong Bin, Tan, Seow Yen, Shafi, Humaira, Chien, Jaime, Fong, Raymond KC., Murray, Daniel D., Lundgren, Jens, Nielsen, Henrik, Jensen, Tomas, Zingman, Barry S., Grossberg, Robert, Riska, Paul F., Yang, Otto O., Ahn, Jenny, Arias, Rubi, Rapaka, Rekha R., Hauser, Naomi, Campbell, James D., Short, William R., Tebas, Pablo, Baron, Jillian T., McLellan, Susan L.F., Blanton, Lucas S., Seashore, Justin B., Creech, C. Buddy, Rice, Todd W., Walker, Shannon, Thomsen, Isaac P., Lopez de Castilla, Diego, Van Winkle, Jason W., Riedo, Francis X., Pada, Surinder Kaur, Wang, Alvin DY., Lin, Li, Harkins, Michelle, Mertz, Gregory, Sosa, Nestor, Ann Chai, Louis Yi, Tambyah, Paul Anantharajah, Tham, Sai Meng, Archuleta, Sophia, Yan, Gabriel, Lindholm, David A., Markelz, Ana Elizabeth, Mende, Katrin, Mularski, Richard, Hohmann, Elizabeth, Torres-Soto, Mariam, Jilg, Nikolaus, Maves, Ryan C., Utz, Gregory C., George, Sarah L., Hoft, Daniel F., Brien, James D., Paredes, Roger, Mateu, Lourdes, Loste, Cora, Kumar, Princy, Thornton, Sarah, Mohanraj, Sharmila, Hynes, Noreen A., Sauer, Lauren M., Colombo, Christopher J., Schofield, Christina, Colombo, Rhonda E., Chambers, Susan E., Novak, Richard M., Wendrow, Andrea, Gupta, Samir K., Lee, Tida, Lalani, Tahaniyat, Holodniy, Mark, Chary, Aarthi, Huprikar, Nikhil, Ganesan, Anuradha, Ohmagari, Norio, Mikami, Ayako, Price, D. Ashley, Duncan, Christopher J.A., Dierberg, Kerry, Neumann, Henry J., Taylor, Stephanie N., Lacour, Alisha, Masri, Najy, Swiatlo, Edwin, Widmer, Kyle, Neaton, James D., Bessesen, Mary, Stephens, David S., Burgess, Timothy H., Uyeki, Timothy M., Walker, Robert, Marks, G. Lynn, Osinusi, Anu, Cao, Huyen, Cardoso, Anabela, de Bono, Stephanie, Schlichting, Douglas E., Chung, Kevin K., Ferreira, Jennifer L., Green, Michelle, Makowski, Mat, Wierzbicki, Michael R., Conrad, Tom M., El-Khorazaty, Jill Ann, Hill, Heather, Bonnett, Tyler, Gettinger, Nikki, Engel, Theresa, Lewis, Teri, Wang, Jing, Beigel, John H., Tomashek, Kay M., Ghazaryan, Varduhi, Beresnev, Tatiana, Nayak, Seema, Dodd, Lori E., Dempsey, Walla, Nomicos, Effie, Lee, Marina, Pikaart-Tautges, Rhonda, Elsafy, Mohamed, Jurao, Robert, Koo, Hyung, Proschan, Michael, Yokum, Tammy, Arega, Janice, Florese, Ruth, Voell, Jocelyn D., Davey, Richard, Serrano, Ruth C., Wiley, Zanthia, Phadke, Varun K., Goepfert, Paul A., Gomez, Carlos A., Sofarelli, Theresa A., Certain, Laura, Imlay, Hannah N., Wolfe, Cameron R., Ko, Emily R., Engemann, John J., Felix, Nora Bautista, Wan, Claire R., Elmor, Sammy T., Bristow, Laurel R., Harkins, Michelle S., Iovine, Nicole M., Elie-Turenne, Marie-Carmelle, Tapson, Victor F., Choe, Pyoeng Gyun, Mularski, Richard A., Rhie, Kevin S., Hussein, Rezhan H., Ince, Dilek, Winokur, Patricia L., Takasaki, Jin, Saito, Sho, McConnell, Kimberly, Wyles, David L., Sarcone, Ellen, Grimes, Kevin A., Perez, Katherine, Janak, Charles, Whitaker, Jennifer A., Rebolledo, Paulina A., Gharbin, John, Lambert, Allison A., Zea, Diego F., Bainbridge, Emma, Hostler, David C., Hostler, Jordanna M., Shahan, Brian T., Ling, Evelyn, Go, Minjoung, Hubbard, Fleesie A., Chakrabarty, Melony, Laguio-Vila, Maryrose, Walsh, Edward E., Guirgis, Faheem, Marconi, Vincent C., Madar, Christian, Borgetti, Scott A., Levine, Corri, Nock, Joy, Candiotti, Keith, Rozman, Julia, Dangond, Fernando, Hyvert, Yann, Seitzinger, Andrea, Cross, Kaitlyn, Pettibone, Stephanie, Nayak, Seema U., Deye, Gregory A., Siempos, Ilias I., Belhadi, Drifa, Veiga, Viviane Cordeiro, Cavalcanti, Alexandre Biasi, Branch-Elliman, Westyn, Papoutsi, Eleni, Gkirgkiris, Konstantinos, Xixi, Nikoleta A., and Kotanidou, Anastasia

Published
2024
Full Text
View/download PDF

9. Concrete 1 - 5

Author

Riedo, David, primary, Fischer, Romano, additional, Berberat, Céline, additional, Hauser, David, additional, and Amstutz, Joël, additional

Published
2023
Full Text
View/download PDF

10. Beton 1 - 5

Author

Riedo, David, primary, Fischer, Romano, additional, Berberat, Céline, additional, Hauser, David, additional, and Amstutz, Joël, additional

Published
2023
Full Text
View/download PDF

11. Detecting the elemental and molecular signatures of life: Laser-based mass spectrometry technologies

Author

Ligterink, Niels F. W., Riedo, Andreas, Tulej, Marek, Lukmanov, Rustam, Grimaudo, Valentine, de Koning, Coenraad, Wurz, Peter, Briois, Christelle, Carrasco, Nathalie, Arevalo Jr., Ricardo, and Brinckerhoff, William B.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Solar and Stellar Astrophysics
Abstract

The identification of extraterrestrial life is one the most exciting and challenging endeavors in space research. The existence of extinct or extant life can be inferred from biogenic elements, isotopes, and molecules, but accurate and sensitive instruments are needed. In this whitepaper we show that Laser-based Mass Spectrometers are promising instrument for the in situ identification of atomic, isotopic, and molecular biosignatures. An overview of Laser ablation/Ionization Mass Spectrometry (LIMS) and Laser Desorption/Ionization Mass Spectrometry (LD-MS) instruments developed for space exploration is given. Their uses are discussed in the context of a Mars scenario and a Europa scenario. We show that Laser-based Mass Spectrometers are versatile and technologically mature instruments with many beneficial characteristics for the detection of life. Future planetary lander and rover missions should be encouraged to make use of Laser-based Mass Spectrometry instruments in their scientific payload., Comment: 10 pages, 1 figure. Submitted as a whitepaper for the Planetary Science and Astrobiology Decadal Survey 2023-2032

Published
2020

12. Publisher Correction: Soil contamination in nearby natural areas mirrors that in urban greenspaces worldwide

Author

Liu, Yu-Rong, van der Heijden, Marcel G. A., Riedo, Judith, Sanz-Lazaro, Carlos, Eldridge, David J., Bastida, Felipe, Moreno-Jiménez, Eduardo, Zhou, Xin-Quan, Hu, Hang-Wei, He, Ji-Zheng, Moreno, José L., Abades, Sebastian, Alfaro, Fernando, Bamigboye, Adebola R., Berdugo, Miguel, Blanco-Pastor, José L., de los Ríos, Asunción, Duran, Jorge, Grebenc, Tine, Illán, Javier G., Makhalanyane, Thulani P., Molina-Montenegro, Marco A., Nahberger, Tina U., Peñaloza-Bojacá, Gabriel F., Plaza, César, Rey, Ana, Rodríguez, Alexandra, Siebe, Christina, Teixido, Alberto L., Casado-Coy, Nuria, Trivedi, Pankaj, Torres-Díaz, Cristian, Verma, Jay Prakash, Mukherjee, Arpan, Zeng, Xiao-Min, Wang, Ling, Wang, Jianyong, Zaady, Eli, Zhou, Xiaobing, Huang, Qiaoyun, Tan, Wenfeng, Zhu, Yong-Guan, Rillig, Matthias C., and Delgado-Baquerizo, Manuel

Published
2023
Full Text
View/download PDF

13. Soil contamination in nearby natural areas mirrors that in urban greenspaces worldwide

Author

Liu, Yu-Rong, van der Heijden, Marcel G. A., Riedo, Judith, Sanz-Lazaro, Carlos, Eldridge, David J., Bastida, Felipe, Moreno-Jiménez, Eduardo, Zhou, Xin-Quan, Hu, Hang-Wei, He, Ji-Zheng, Moreno, José L., Abades, Sebastian, Alfaro, Fernando, Bamigboye, Adebola R., Berdugo, Miguel, Blanco-Pastor, José L., de los Ríos, Asunción, Duran, Jorge, Grebenc, Tine, Illán, Javier G., Makhalanyane, Thulani P., Molina-Montenegro, Marco A., Nahberger, Tina U., Peñaloza-Bojacá, Gabriel F., Plaza, César, Rey, Ana, Rodríguez, Alexandra, Siebe, Christina, Teixido, Alberto L., Casado-Coy, Nuria, Trivedi, Pankaj, Torres-Díaz, Cristian, Verma, Jay Prakash, Mukherjee, Arpan, Zeng, Xiao-Min, Wang, Ling, Wang, Jianyong, Zaady, Eli, Zhou, Xiaobing, Huang, Qiaoyun, Tan, Wenfeng, Zhu, Yong-Guan, Rillig, Matthias C., and Delgado-Baquerizo, Manuel

Published
2023
Full Text
View/download PDF

15. Detection of Nucleocapsid Antibody to SARS-CoV-2 is More Sensitive than Antibody to Spike Protein in COVID-19 Patients

Author

Burbelo, Peter D, Riedo, Francis X, Morishima, Chihiro, Rawlings, Stephen, Smith, Davey, Das, Sanchita, Strich, Jeffrey R, Chertow, Daniel S, Davey, Richard T, and Cohen, Jeffrey I

Subjects
Pneumonia, Lung, Pneumonia & Influenza, Infectious Diseases, Biodefense, Emerging Infectious Diseases, Biotechnology, Vaccine Related, Prevention, Infection, Good Health and Well Being, Adult, Antibodies, Viral, Betacoronavirus, COVID-19, COVID-19 Testing, Clinical Laboratory Techniques, Coronavirus Infections, Coronavirus Nucleocapsid Proteins, Female, Hot Temperature, Humans, Immunocompetence, Immunocompromised Host, Immunoprecipitation, Luciferases, Male, Middle Aged, Nucleocapsid Proteins, Pandemics, Phosphoproteins, Pneumonia, Viral, Retrospective Studies, SARS-CoV-2, Sensitivity and Specificity, Spike Glycoprotein, Coronavirus, Time Factors, coronavirus, serology, Biological Sciences, Medical and Health Sciences, Microbiology
Abstract

BackgroundSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the cause of coronavirus disease 2019 (COVID-19), is associated with respiratory-related disease and death. Assays to detect virus-specific antibodies are important to understand the prevalence of infection and the course of the immune response.MethodsQuantitative measurements of plasma or serum antibodies to the nucleocapsid and spike proteins were analyzed using luciferase immunoprecipitation system assays in 100 cross-sectional or longitudinal samples from patients with SARS-CoV-2 infection. A subset of samples was tested both with and without heat inactivation.ResultsAt >14 days after symptom onset, antibodies against SARS-CoV-2 nucleocapsid protein showed 100% sensitivity and 100% specificity, whereas antibodies to spike protein were detected with 91% sensitivity and 100% specificity. Neither antibody levels nor the rate of seropositivity were significantly reduced by heat inactivation of samples. Analysis of daily samples from 6 patients with COVID-19 showed anti-nucleocapsid and spike protein antibodies appearing between days 8 and 14 after initial symptoms. Immunocompromised patients generally had a delayed antibody response to SARS-CoV-2, compared with immunocompetent patients.ConclusionsAntibody to the nucleocapsid protein of SARS-CoV-2 is more sensitive than spike protein antibody for detecting early infection. Analyzing heat-inactivated samples with a luciferase immunoprecipitation system assay is a safe and sensitive method for detecting SARS-CoV-2 antibodies.

Published
2020

16. Sensitivity in Detection of Antibodies to Nucleocapsid and Spike Proteins of Severe Acute Respiratory Syndrome Coronavirus 2 in Patients With Coronavirus Disease 2019.

Author

Burbelo, Peter D, Riedo, Francis X, Morishima, Chihiro, Rawlings, Stephen, Smith, Davey, Das, Sanchita, Strich, Jeffrey R, Chertow, Daniel S, Davey, Richard T, and Cohen, Jeffrey I

Subjects
Humans, Pneumonia, Viral, Coronavirus Infections, Luciferases, Phosphoproteins, Nucleocapsid Proteins, Antibodies, Viral, Clinical Laboratory Techniques, Sensitivity and Specificity, Retrospective Studies, Immunoprecipitation, Immunocompetence, Immunocompromised Host, Time Factors, Adult, Middle Aged, Female, Male, Hot Temperature, Pandemics, Spike Glycoprotein, Coronavirus, Betacoronavirus, COVID-19, SARS-CoV-2, COVID-19 Testing, Coronavirus Nucleocapsid Proteins, coronavirus, serology, Antibodies, Viral, Pneumonia, Spike Glycoprotein, Coronavirus, Biological Sciences, Medical and Health Sciences, Microbiology
Abstract

BackgroundSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the cause of coronavirus disease 2019 (COVID-19), is associated with respiratory-related disease and death. Assays to detect virus-specific antibodies are important to understand the prevalence of infection and the course of the immune response.MethodsQuantitative measurements of plasma or serum antibodies to the nucleocapsid and spike proteins were analyzed using luciferase immunoprecipitation system assays in 100 cross-sectional or longitudinal samples from patients with SARS-CoV-2 infection. A subset of samples was tested both with and without heat inactivation.ResultsAt >14 days after symptom onset, antibodies against SARS-CoV-2 nucleocapsid protein showed 100% sensitivity and 100% specificity, whereas antibodies to spike protein were detected with 91% sensitivity and 100% specificity. Neither antibody levels nor the rate of seropositivity were significantly reduced by heat inactivation of samples. Analysis of daily samples from 6 patients with COVID-19 showed anti-nucleocapsid and spike protein antibodies appearing between days 8 and 14 after initial symptoms. Immunocompromised patients generally had a delayed antibody response to SARS-CoV-2, compared with immunocompetent patients.ConclusionsAntibody to the nucleocapsid protein of SARS-CoV-2 is more sensitive than spike protein antibody for detecting early infection. Analyzing heat-inactivated samples with a luciferase immunoprecipitation system assay is a safe and sensitive method for detecting SARS-CoV-2 antibodies.

Published
2020

17. Institucionalismo e suas relações com o desenvolvimentismo: Passado, presente e futuro

Author

IJEAN GOMES RIEDO, MANOEL JOÃO RAMOS, FLAVIA PICCININ PAZ GUBERT, and ALDI FEIDEN

Subjects
Instituições, desenvolvimento, sustentabilidade, Economics as a science, HB71-74
Abstract

RESUMO Esta pesquisa analisa teoricamente o papel das instituições para o desenvolvimento organizacional baseado na teoria desenvolvimentista e institucional, emergindo questões relevantes, como: Quais foram os marcos conceituais do desenvolvimento institucional? Como as instituições participaram da evolução econômica? Como ocorre o desenvolvimento institucional na América Latina? Qual o modelo desenvolvimentista para o futuro? Entretanto, não pretende defender ideologias políticas, sociais e/ou econômicas, mas debater questões construtivas para o desenvolvimento sustentável. Neste aspecto, a pesquisa revela não bastar políticas passivas de funcionamento mercadológico e programas de investimentos públicos segmentados, mas uma atuação estratégica e cooperativa entre Indústria-Governo-Universidade em prol do desenvolvimento sustentável.

Published
2023
Full Text
View/download PDF

21. Pesticides in Agricultural Soils: Major Findings from Various Monitoring Campaigns in Switzerland

Author

Thomas D. Bucheli, Elias Barmettler, Nora Bartolomé, Isabel Hilber, Karel Hornak, Reto G. Meuli, Vanessa Reininger, Judith Riedo, Andrea Rösch, Philipp Sutter, Marcel G. A. van der Heijden, Daniel Wächter, and Florian Walder

Subjects
Micropollutants, Plant Protection Products, Swiss National Soil Monitoring Program, Chemistry, QD1-999
Abstract

Synthetic pesticides are widely applied in modern agriculture, where they are used against diseases, pests, and weeds to secure crop yield and quality. However, their intensive application has led to widespread contamination of the environment, including soils. Due to their inherent toxicity, they might pose a risk to soil health by causing harm to non-target organisms and disrupting ecosystem services in both agricultural and other exposed soils. Following the Swiss National Action Plan on the reduction of pesticide risks, Agroscope has conducted several soil monitoring studies that are briefly presented here. All of them resort to different multi-residue trace analytical approaches to simultaneously quantify up to about 150 modern pesticides by either accelerated solvent, or Quick, Easy, Cheap, Efficient, Rugged, Safe (QuEChERS) extraction, followed by separation and detection with liquid chromatography-triple quadrupole mass spectrometry. While partly still in progress, our investigations led to the following major findings this far: Multiple pesticides are commonly present in soils, with individual concentrations in agricultural soils often reaching up to a few tens of µg/kg. Pesticide occurrence and concentrations in agricultural soils primarily depend on land use, land use history and cultivated crops. Pesticides can prevail much longer than predicted by their half-lives, and were found in soils even decades after conversion from conventional to organic farming. Corresponding residual fractions can be in the order of a few percent of the originally applied amounts. We further found negative associations of pesticide residues with the abundance of beneficial soil life, underpinning their potential risk to the fertility of agricultural soils. Traces of pesticides are also detected in soils to which they were never applied, indicating contamination, e.g., via spray drift or atmospheric deposition. These results confirm the general notion of both scientists and legislators that prospective risk assessments (RA; as executed during registration and use authorization) should be confirmed and adjusted by retrospective RA (e.g., by environmental monitoring studies of currently used compounds) to jointly lead to an overall reduced environmental risk of pesticides.

Published
2023
Full Text
View/download PDF

23. Nonreciprocal nano-optics with spin-waves in synthetic antiferromagnets

Author

Albisetti, Edoardo, Tacchi, Silvia, Silvani, Raffaele, Scaramuzzi, Giuseppe, Finizio, Simone, Wintz, Sebastian, Raabe, Jörg, Carlotti, Giovanni, Bertacco, Riccardo, Riedo, Elisa, and Petti, Daniela

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

Integrated optically-inspired wave-based processing is envisioned to outperform digital architectures in specific tasks, such as image processing and speech recognition. In this view, spin-waves represent a promising route due to their nanoscale wavelength in the GHz frequency range and rich phenomenology. Here, we realize a versatile optically-inspired platform using spin-waves, demonstrating the wavefront engineering, focusing, and robust interference of spin-waves with nanoscale wavelength. In particular, we use magnonic nanoantennas based on tailored spin-textures for launching spatially shaped coherent wavefronts, diffraction-limited spin-wave beams, and generating robust multi-beam interference patterns, which spatially extend for several times the spin-wave wavelength. Furthermore, we show that intriguing features, such as resilience to back-reflection, naturally arise from the spin-wave nonreciprocity in synthetic antiferromagnets, preserving the high quality of the interference patterns from spurious counterpropagating modes. This work represents a fundamental step towards the realization of nanoscale optically-inspired devices based on spin-waves.

Published
2019

24. $\r{A}$-Indentation for non-destructive elastic moduli measurements of supported ultra-hard ultra-thin films and nanostructures

Author

Cellini, Filippo, Gao, Yang, and Riedo, Elisa

Subjects
Physics - Applied Physics, Condensed Matter - Materials Science
Abstract

During conventional nanoindentation measurements, the indentation depths are usually larger than 1-10 nm, which hinders the ability to study ultra-thin films ($<$ 10 nm) and supported atomically thin two-dimensional (2D) materials. Here, we discuss the development of modulated \r{A}-indentation to achieve sub-\r{A} indentation depths during force-indentation measurements while also imaging materials with nanoscale resolution. Modulated nanoindentation (MoNI) was originally invented to measure the radial elasticity of multi-walled nanotubes. Now, by using extremely small amplitude oscillations ($\ll$ 1 \r{A}) at high frequency, and stiff cantilevers, we show how modulated nano/\r{A}-indentation (MoNI/\r{A}I) enables non-destructive measurements of the contact stiffness and indentation modulus of ultra-thin ultra-stiff films, including CVD diamond films (modulus $\sim$ 1000 GPa), as well as the transverse modulus of 2D materials. Our analysis demonstrates that in presence of a standard laboratory noise floor, the signal to noise ratio of MoNI/\r{A}I implemented with a commercial atomic force microscope (AFM) is such that a dynamic range of 80 dB $-$ achievable with commercial Lock-in amplifiers $-$ is sufficient to observe superior indentation curves, having indentation depths as small as 0.3 \r{A}, resolution in indentation $<$ 0.05 \r{A}, and in normal load $<$ 0.5 nN. Being implemented on a standard AFM, this method has the potential for a broad applicability., Comment: 37 pages, 12 figures

Published
2019

25. Layer dependence of graphene-diamene phase transition in epitaxial and exfoliated few-layer graphene using machine learning

Author

Cellini, Filippo, Lavini, Francesco, Berger, Claire, de Heer, Walt, and Riedo, Elisa

Subjects
Condensed Matter - Materials Science, Physics - Applied Physics
Abstract

The study of the nanomechanics of graphene $-$ and other 2D materials $-$ has led to the discovery of exciting new properties in 2D crystals, such as their remarkable in-plane stiffness and out of plane flexibility, as well as their unique frictional and wear properties at the nanoscale. Recently, nanomechanics of graphene has generated renovated interest for new findings on the pressure-induced chemical transformation of a few-layer thick epitaxial graphene into a new ultra-hard carbon phase, named diamene. In this work, by means of a machine learning technique, we provide a fast and efficient tool for identification of graphene domains (areas with a defined number of layers) in epitaxial and exfoliated films, by combining data from Atomic Force Microscopy (AFM) topography and friction force microscopy (FFM). Through the analysis of the number of graphene layers and detailed \r{A}-indentation experiments, we demonstrate that the formation of ultra-stiff diamene is exclusively found in 1-layer plus buffer layer epitaxial graphene on silicon carbide (SiC) and that an ultra-stiff phase is not observed in neither thicker epitaxial graphene (2-layer or more) nor exfoliated graphene films of any thickness on silicon oxide (SiO$_{2}$)., Comment: 30 pages, 7 figures

Published
2019

30. DESAIN KEMASAN RENDANG EKSPOR UNTUK MEMASUKI PASAR MESIR BERDASARKAN PREFERENSI KONSUMEN

Author

Muhammad Riedo Dharmawan, Riedo, Aidil Ikhsan, Aidil Ikhsan, S.T.,M.T.,IPM, Muhammad Riedo Dharmawan, Riedo, and Aidil Ikhsan, Aidil Ikhsan, S.T.,M.T.,IPM

Abstract

Adanya kegiatan perdagangan ekspor dan impor memberikan manfaat yang besar bagi semua pihak, baik pengusaha, masyarakat luas maupun pemerintah. Salah satu pasar yang menjanjikan dengan pertumbuhan ekonomi yang pesat adalah Mesir karena menawarkan peluang signifikan bagi perusahaan internasional. UMKM asal Indonesia yang telah hampir masuk ke Mesir adalah rendang ratuju Indonesia, rendang katuju sendiri didirikan pada tahun 2017 oleh Ade Surianto. Adapun tujuan yang dilakukan pada penelitian ini untuk menentukan variabel dan mengidentifikasi preferensi masyarakat Mesir dengan menyesuaikan selera konsumen yang relevan seperti simbol, motif, warna, dan gaya visual. Setelah didapatkan variabel dilakukan perancangan kemasan dan membuat prototype kemasan rendang sesuai dengan preferensi dan selera konsumen. Perancangan kemasan dilakukan berdasarkan keinginan konsumen. Keinginan konsumen bersifat implisit, oleh karena itu perancangan kemasan ini dilakukan dengan menggunakan Kansei Engineering. Metode Kansei Engineering dapat mengetahui keinginan konsumen berdasarkan aspek psikologi, yaitu perasaan dan emosi konsumen, sehingga akan mempermudah dalam menerjemahkan keinginan konsumen menjadi desain produk. Hasil rancangan kemasan didapatkan dari hasil pengolahan data, dan bagaimana menghubungkan kata-kata Kansei dengan properti produk serta bagaimana hasil pemilihan berbagai jenis model kemasan yang sesuai dengan kriteria kata-kata Kansei. Alternatif rancangan kemasan yang diberikan ada 3 rancangan. yakni rancangan alternatif 1 (satu) berbentuk standing pouch, rancangan alternatif 2 (dua) berbentuk segitiga dan rancangan alternatif 3 (tiga) berbentuk persegi. Rancangan yang terpilih adalah rancangan 1 (satu) yaitu kemasan standing pouch termasuk salah satu kemasan yang sedang trend saat ini, Kemasan standing pouch dilengkapi dengan grip pemegang diatasnya yang mempermudah produk untuk dibawa. Selain itu standing pouch memiliki tampilan desain yang terlihat kokoh dan memiliki

Published
2024

31. Ultrahard carbon film from epitaxial two-layer graphene

Author

Gao, Yang, Cao, Tengfei, Cellini, Filippo, Berger, Claire, de Heer, Walt, Tosatti, Erio, Riedo, Elisa, and Bongiorno, Angelo

Subjects
Condensed Matter - Materials Science, Physics - Computational Physics
Abstract

Atomically thin graphene exhibits fascinating mechanical properties, although its hardness and transverse stiffness are inferior to those of diamond. To date, there hasn't been any practical demonstration of the transformation of multi-layer graphene into diamond-like ultra-hard structures. Here we show that at room temperature and after nano-indentation, two-layer graphene on SiC(0001) exhibits a transverse stiffness and hardness comparable to diamond, resisting to perforation with a diamond indenter, and showing a reversible drop in electrical conductivity upon indentation. Density functional theory calculations suggest that upon compression, the two-layer graphene film transforms into a diamond-like film, producing both elastic deformations and sp2-to-sp3 chemical changes. Experiments and calculations show that this reversible phase change is not observed for a single buffer layer on SiC or graphene films thicker than 3 to 5 layers. Indeed, calculations show that whereas in two-layer graphene layer-stacking configuration controls the conformation of the diamond-like film, in a multilayer film it hinders the phase transformation., Comment: Published online on Nature Nanotechnology on December 18, 2017

Published
2018
Full Text
View/download PDF

34. Nanomagnonic waveguides based on reconfigurable spin-textures for spin computing

Author

Albisetti, Edoardo, Petti, Daniela, Sala, Giacomo, Silvani, Raffaele, Tacchi, Silvia, Finizio, Simone, Wintz, Sebastian, Caló, Annalisa, Zheng, Xiaorui, Raabe, Jörg, Riedo, Elisa, and Bertacco, Riccardo

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Materials Science
Abstract

Magnonics is gaining momentum as an emerging technology for information processing. The wave character and Joule heating-free propagation of spin-waves hold promises for highly efficient analog computing platforms, based on integrated magnonic circuits. Miniaturization is a key issue but, so far, only few examples of manipulation of spin-waves in nanostructures have been demonstrated, due to the difficulty of tailoring the nanoscopic magnetic properties with conventional fabrication techniques. In this Letter, we demonstrate an unprecedented degree of control in the manipulation of spin-waves at the nanoscale by using patterned reconfigurable spin-textures. By space and time-resolved scanning transmission X-ray microscopy imaging, we provide direct evidence for the channeling and steering of propagating spin-waves in arbitrarily shaped nanomagnonic waveguides based on patterned domain walls, with no need for external magnetic fields or currents. Furthermore, we demonstrate a prototypic nanomagnonic circuit based on two converging waveguides, allowing for the tunable spatial superposition and interaction of confined spin-waves modes., Comment: 16 pages, 5 figures

Published
2017

35. Spontaneous emergence of straintronics effects and striped stacking domains in untwisted three-layer epitaxial graphene.

Author

Rejhon, Martin, Parashar, Nitika, Schellack, Lorenzo, Shestopalov, Mykhailo, Kunc, Jan, and Riedo, Elisa

Subjects
BAND gaps, ATOMIC force microscopy, DENSITY functional theory, GRAPHENE, ELECTRONIC equipment
Abstract

Emergent electronic phenomena, from superconductivity to ferroelectricity, magnetism, and correlated many-body band gaps, have been observed in domains created by stacking and twisting atomic layers of Van der Waals materials. In graphene, emergent properties have been observed in ABC stacking domains obtained by exfoliation followed by expert mechanical twisting and alignment with the desired orientation, a process very challenging and nonscalable. Here, conductive atomic force microscopy shows in untwisted epitaxial graphene grown on SiC the surprising presence of striped domains with dissimilar conductance, a contrast that demonstrates the presence of ABA and ABC domains since it matches exactly the conductivity difference observed in ABA/ABC domains in twisted exfoliated graphene and calculated by density functional theory. The size and geometry of the stacking domains depend on the interplay between strain, solitons crossing, and shape of the three-layer regions. Interestingly, we demonstrate the growth of three-layer regions in which the ABA/ABC stacking domains self-organize in stable stripes of a few tens of nanometers. The growth-controlled production of isolated and stripe-shaped ABA/ABC domains open the path to fabricate quantum devices on these domains. These findings on self-assembly formation of ABA/ABC epitaxial graphene stripes on SiC without the need of time-consuming and nonscalable graphene exfoliation, alignment, and twisting provide different potential applications of graphene in electronic devices. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

36. Autonomous Detection of Mineral Phases in a Rock Sample Using a Space-prototype LIMS Instrument and Unsupervised Machine Learning

Author

Salome Gruchola, Peter Keresztes Schmidt, Marek Tulej, Andreas Riedo, Klaus Mezger, and Peter Wurz

Subjects
Time-of-flight mass spectrometry, Laser ablation, Dimensionality reduction, Astronomy, QB1-991
Abstract

In situ mineralogical and chemical analyses of rock samples using a space-prototype laser ablation ionization mass spectrometer along with unsupervised machine learning are powerful tools for the study of surface samples on planetary bodies. This potential is demonstrated through the examination of a thin section of a terrestrial rock sample in the laboratory. Autonomous isolation of mineral phases within the acquired mass spectrometric data is achieved with two dimensionality reduction techniques: uniform manifold approximation and projection (UMAP) and density-preserving variation of UMAP (densMAP), and the density-based clustering algorithm Hierarchical Density-Based Spatial Clustering of Applications with Noise (HDBSCAN). Both densMAP and UMAP yield comparable outcomes, successfully isolating the major mineral phases fluorapatite, calcite, and forsterite in the studied rock sample. Notably, densMAP reveals additional insights into the composition of the sample through outlier detection, uncovering signals from the trace minerals pyrite, rutile, baddeleyite, and uranothorianite. Through a grid search, the stability of the methods over a broad model parameter space is confirmed, revealing a correlation between the level of data preprocessing and the resulting clustering quality. Consequently, these methods represent effective strategies for data reduction, highlighting their potential application on board spacecraft to obtain direct and quantitative information on the chemical composition and mineralogy of planetary surfaces and to optimize mission returns through the unsupervised selection of valuable data.

Published
2024
Full Text
View/download PDF

39. Formação de professores no ensino remoto emergencial: desafios, limitações e possibilidades

Author

Marta Fernandes Garcia and Cássio Ricardo Fares Riedo

Subjects
ensino remoto emergencial, formação de professores, qualidade na educação superior, Education, Education (General), L7-991, Theory and practice of education, LB5-3640
Abstract

Este trabalho analisa a formação inicial de estudantes em cursos de licenciaturas de uma instituição federal no Estado de São Paulo durante o ensino remoto emergencial e problematiza suas condições de estudo, bem como suas opiniões sobre a qualidade do processo de ensino-aprendizagem durante o período de pandemia de COVID-19, no qual as aulas presenciais foram paralisadas. Os dados foram coletados a partir de um questionário semiestruturado respondido por 104 estudantes. Os dados das questões fechadas foram tratados estatisticamente e aqueles das questões abertas categorizados segundo análise de conteúdo temática. As análises permitiram vislumbrar limitações institucionais no enfrentamento dos desafios em relação ao ensino remoto, dificuldades pedagógicas e tecnológicas do corpo docente e barreiras socioeconômicas que limitaram o engajamento dos estudantes nos estudos.

Published
2023
Full Text
View/download PDF

43. Sample handling concept for in-situ lunar regolith analysis by laser-based mass spectrometry

Author

Schmidt, Peter Keresztes, primary, Hayoz, Sébastien, additional, Piazza, Daniele, additional, Bandy, Timothy, additional, Mändli, Patrik, additional, Blaukovitsch, Matthias, additional, Althaus, Michael, additional, Plet, Benoît Gabriel, additional, Riedo, Sven, additional, Studer, Simon, additional, Studer, Olivier, additional, Bieri, Michael, additional, Tulej, Marek, additional, Riedo, Andreas, additional, and Wurz, Peter, additional

Published
2024
Full Text
View/download PDF

45. Giant Increase of Hardness in Silicon Carbide by Metastable Single Layer Diamond‐Like Coating

Author

Martin Rejhon, Xinliu Zhou, Francesco Lavini, Alessandra Zanut, Filip Popovich, Lorenzo Schellack, Lukasz Witek, Paulo Coelho, Jan Kunc, and Elisa Riedo

Subjects
diamene, epitaxial graphene, SiC, hardness, Young's modulus, Science
Abstract

Abstract Silicon carbide (SiC) is one of the hardest known materials. Its exceptional mechanical properties combined with its high thermal conductivity make it a very attractive material for a variety of technological applications. Recently, it is discovered that two‐layer epitaxial graphene films on SiC can undergo a pressure activated phase transition into a sp3 diamene structure at room temperature. Here, it is shown that epitaxial graphene films grown on SiC can increase the hardness of SiC up to 100% at low loads (up to 900 µN), and up to 30% at high loads (10 mN). By using a Berkovich diamond indenter and nanoindentation experiments, it is demonstrated that the 30% increase in hardness is present even for indentations depths of 175 nm, almost three hundred times larger than the graphene film thickness. The experiments also show that the yield point of SiC increases up to 77% when the SiC surface is coated with epitaxial graphene. These improved mechanical properties are explained with the formation of diamene under the indenter's pressure.

Published
2023
Full Text
View/download PDF

46. COVID-19 in a Long-Term Care Facility — King County, Washington, February 27–March 9, 2020

Author

Public Health – Seattle & King County, EvergreenHealth, CDC COVID-19 Investigation Team, McMichael, Temet M., Clark, Shauna, Pogosjans, Sargis, Kay, Meagan, Lewis, James, Baer, Atar, Kawakami, Vance, Lukoff, Margaret D., Ferro, Jessica, Brostrom-Smith, Claire, Riedo, Francis X., Russell, Denny, Hiatt, Brian, Montgomery, Patricia, Rao, Agam K., Currie, Dustin W., Chow, Eric J., Tobolowsky, Farrell, Bardossy, Ana C., Oakley, Lisa P., Jacobs, Jesica R., Schwartz, Noah G., Stone, Nimalie, Reddy, Sujan C., Jernigan, John A., Honein, Margaret A., Clark, Thomas A., and Duchin, Jeffrey S.

Published
2020

49. Förderung der Kompetenz angehender Lehrpersonen zum Führen von Elterngesprächen

Author

Martin Gartmeier, Natalie Fischer, Anja Deistler, Dominicq Riedo, and Roger Gut

Subjects
Lehrerbildung, Elterngespräche, Kommunikationstraining, Gesprächsführung, Intervention, Education (General), L7-991
Abstract

Elterngespräche sind eine wichtige Aufgabe von Lehrpersonen, die in der Ausbildung oft vernachlässigt wird. Für einige Trainingspro-gramme liegt positive Wirksamkeitsevidenz vor, ein Transfer dieser Programme zwischen Hochschulen ist jedoch schwierig. Im vorliegenden Beitrag wird daher ein kurzer Lehrbaustein zur Elternberatung beforscht, der auf eine leichte Übertragbarkeit hin entwickelt wurde. Ziel des Beitrags ist die empirische Prüfung der Wirksamkeit des Lehrbausteins, der zwei Präsenzsitzungen sowie zwei Videoreflexionsaufgaben umfasst. Als Assessment von Gesprächsführungskompetenz dienten simulierte Elterngespräche mit trainierten Schauspieler*innen. In einer experimentellen Studie wurden Studierende, die den Lehrbaustein durchlaufen hatten (Untersuchungsgruppe), mit untrainierten Studierenden (Wartekontrollgruppe) verglichen. Als Kovariaten von Gesprächsführungskompetenz wurden die bisherige Studiendauer sowie das beratungsbezogene Selbstkonzept berücksichtigt. Die videographierten Gespräche wurden von geschulten Rater*innen mit hoher Reliabilität beurteilt. Die Ergebnisse zeigen einen statistisch bedeutsamen, moderaten Trainingseffekt der trainierten im Vergleich zu den untrainierten Studierenden, was für die Wirksamkeit des Lehrbausteins spricht. Der Trainingseffekt blieb auch unter Einbezug des Beratungsselbstkonzepts und der Studiendauer als Kovariaten bestehen, wobei sich das Selbstkonzept einflussreich bzgl. der Performanz im simulierten Elterngespräch zeigte. Unsere Ergebnisse machen deutlich, dass sich durch einen kurzen didaktischen Baustein messbare Effekte hinsichtlich der Gesprächsführungskompetenz erzielen lassen.

Published
2022
Full Text
View/download PDF

50. Imaging thermal conductivity with nanoscale resolution using a scanning spin probe

Author

Laraoui, Abdelghani, Aycock-Rizzo, Halley, Gao, Yang, Lu, Xi, Riedo, Elisa, and Meriles, Carlos A.

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

The ability to probe nanoscale heat flow in a material is often limited by lack of spatial resolution. Here, we use a diamond-nanocrystal-hosted nitrogen-vacancy centre attached to the apex of a silicon thermal tip as a local temperature sensor. We apply an electrical current to heat up the tip and rely on the NV to monitor the thermal changes the tip experiences as it is brought into contact with surfaces of varying thermal conductivity. With the aid of a combined AFM/confocal setup, we image phantom microstructures with nanoscale resolution, and attain excellent agreement between the thermal conductivity and topographic maps. The small mass and high thermal conductivity of the diamond host make the time response of our technique short, which we demonstrate by monitoring the tip temperature upon application of a heat pulse. Our approach promises multiple applications, from the investigation of phonon dynamics in nanostructures to the characterization of heterogeneous phase transitions and chemical reactions in various solid-state systems.

Published
2015
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results