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295 results on '"Ian, Fraser"'

2. Antibacterial activity of Dioscorea bulbifera Linn. extract and its active component flavanthrinin against skin-associated bacteria

Author

Donruedee Sanguansermsri, Phanchana Sanguansermsri, Kittisak Buaban, Vachira Choommongkol, Chareeporn Akekawatchai, Noree Charoensri, Ian Fraser, and Nalin Wongkattiya

Subjects
Dioscorea bulbifera L., Flavanthrinin, Antibacterial activity, Skin-associated bacteria, Other systems of medicine, RZ201-999
Abstract

Abstract Background Dioscorea bulbifera Linn. has been used for wound care in Thailand. However, a comprehensive evaluation of its antibacterial activity is required. This study aimed to investigate the antibacterial efficacy of D. bulbifera extract against skin-associated bacteria and isolate and characterize its active antibacterial agent, flavanthrinin. Methods Air-dried bulbils of D. bulbifera were pulverised and extracted with hexane, dichloromethane, ethyl acetate, methanol, ethanol, and distilled water; vacuum filtered; concentrated; freeze-dried; and stored at -20 ºC. Antibacterial activity of the extracts was assessed using microdilution techniques against several skin-associated bacteria. Thin-layer chromatography (TLC) bioautography was used to identify the active compounds in the extract, which were fractionated by column chromatography and purified by preparative TLC. The chemical structures of the purified compounds were analysed using nuclear magnetic resonance (NMR). The cytotoxicity of the extract and its active compounds was evaluated in Vero cells. Results The ethyl acetate extract exhibited distinct inhibition zones against bacteria compared to other extracts. Therefore, the ethyl acetate extract of D. bulbifera in the ethyl acetate layer was used for subsequent analyses. D. bulbifera extract exhibited antibacterial activity, with minimum inhibitory concentrations (MICs) of 0.78–1.56 mg/mL. An active compound, identified through TLC-bioautography, demonstrated enhanced antibacterial activity, with MICs of 0.02–0.78 mg/mL. NMR analysis identified this bioactive compound as flavanthrinin. Both D. bulbifera extract and flavanthrinin-containing fraction demonstrated potent antibacterial activity against Staphylococcus aureus, methicillin-resistant S. aureus (MRSA), and S. epidermidis. The flavanthrinin containing fraction demonstrated low cytotoxicity against Vero cells, showing CC50 values of 0.41 ± 0.03 mg/mL. These values are lower than the MIC value, indicating that this fraction is safer than the initial ethyl acetate extract. Conclusions Dioscorea bulbifera extract and its bioactive component flavanthrinin demonstrated significant antibacterial activity against the skin-associated bacteria Staphylococci, including MRSA. Flavanthrinin has potential as a complementary therapeutic agent for managing skin infections owing to its potent antibacterial effects and low cytotoxicity.

Published
2024
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3. Antibacterial, Antioxidant, and Cytotoxic Properties of Eclipta prostrata Extracts

Author

Nalin Wongkattiya, Phanchana Sanguansermsri, Chareeporn Akawatchai, Ian Fraser, and Donruedee Sanguansermsri

Subjects
Biology (General), QH301-705.5
Abstract

Eclipta prostrata is traditionally used in Asian medicine to treat skin diseases. Given the side effects and bacterial resistance of conventional treatments, especially in aging populations, alternative therapies are needed. This study assesses the antibacterial, antioxidant, and cytotoxic properties of E. prostrata extracts, focusing on optimizing extraction and fractionation methods for better efficacy. Dried whole plants were extracted with ethanol. Antibacterial activity was tested against Staphylococcus aureus, MRSA, S. epidermidis, and Pseudomonas aeruginosa using broth microdilution to determine minimum inhibitory concentrations (MIC). Antioxidant activity was assessed using a DPPH radical scavenging assay, and cytotoxicity was tested in Vero cells using an MTT assay. The MIC values for crude ethanol extracts ranged from 1.56 to 3.12 mg/ml, and from 0.78 to 1.56 mg/ml for fractionated compounds, indicating increased antibacterial efficacy in fractionated compounds. Antioxidant assays showed an IC50 of 0.666 mg/ml for crude extracts and 0.174 mg/ml for fractionated compounds, indicating higher antioxidant activity. Total phenolic content was 23.25±2.03 mg GAE/g for crude extracts and 95.56±1.09 mg GAE/g for fractionated compounds. Cytotoxicity assays showed IC50 values of 0.10±0.02 mg/ml for crude extracts and 0.06±0.01 mg/ml for fractionated compounds. This study advances extraction and fractionation methods, yielding extracts with significantly increased antibacterial and antioxidant properties. E. prostrata extracts, particularly fractionated compounds, show promising therapeutic potential, though high cytotoxicity in some fractions requires further investigation. These findings support the potential of E. prostrata in modern pharmaceutical formulations for treating skin conditions, especially those associated with aging.

Published
2024
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4. Variation in near‐surface soil temperature drives plant assemblage differentiation across aspect

Author

Elizabeth G. Simpson, Ian Fraser, Hillary Woolf, and William D. Pearse

Subjects
ecosystem function, environmental heterogeneity, evolutionary ecology, functional composition, functional diversity, plant–climate interactions, Ecology, QH540-549.5
Abstract

Abstract Quantifying assemblage variation across environmental gradients provides insight into the ecological and evolutionary mechanisms that differentiate assemblages locally within a larger climate regime. We assessed how vascular plant functional composition and diversity varied across microenvironment to identify ecological differences in assemblages in a mountainous fieldsite in northeastern Utah, USA. Then, we looked at how life‐history strategies and information about phylogenetic differences affect the relationship between functional metrics and environment. We found less functionally dispersed assemblages that were shorter and more resource‐conservative on south‐facing slopes where intra‐annual soil temperature was hotter and more variable. In contrast, we found more functionally dispersed assemblages, that were taller and more resource‐acquisitive on north‐facing slopes where intra‐annual temperature was cooler and less variable. Herbaceous and woody perennials drove these trends. Additionally, including information about phylogenetic differences in a dispersion metric indicated that phylogeny accounts for traits we did not measure. At this fieldsite, soil temperature acts as an environmental filter across aspect. If soil temperature increases and becomes more variable, intra‐annually, the function of north‐ versus south‐facing assemblages may be at risk for contrasting reasons. On south‐facing slopes, assemblages may not have the variance in functional diversity needed to respond to more intense, stressful conditions. Conversely, assemblages on north‐facing slopes may not have the resource‐conservative strategies needed to persist if temperatures become hotter and more variable intra‐annually. Given these results, we advocate for the inclusion of aspect differentiation in studies seeking to understand species and assemblage shifts in response to changing climate conditions.

Published
2024
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5. Exploring teachers' professional development with Twitter : a sociomaterial analysis

Author

Guest, Ian Fraser and Boylan, Mark

Subjects
302.23
Abstract

"BEST. PD. EVER!" Some teachers make bold claims for the way that Twitter supports their professional development, yet research into this area is rather limited. This study sought to gain a better understanding of the practices involved and the part that Twitter plays. It uses a sociomaterial sensibility informed by actor-network theory (ANT) to unravel the complex webs of relations which form, break apart and reform when knowledge practices are enacted in the mediated arena of Twitter. To explore this rich but messy environment, I evoke the spirit of the Parisian flâneur to develop an ethnographic approach I refer to as 'flânography.' Characterised by purposeful wandering, the approach coupled participant observation and interviews, with emerging methods involving a bot and a 'walkie-talkie' app. Adopting the sensibility of the flâneur consistently through data collection, analysis and presentation resulted in traversals which render pathways of experience. This led to me presenting the findings in three 'Gatherings' (Law, 2004a), each taking a tweet or other data snippet as a point of departure. Through the Gatherings I present the activities of both human and nonhuman participants, establish how they came together (or didn't) and gain a better appreciation of the outcomes of those interrelationships. In reading across the Gatherings, two interlocking dimensions emerged through which teachers' learning practices on Twitter might be conceptualised. 'Compound learning' describes how practices can be understood through three meanings of compound: framed chemically (through formation of bonds and associations), financially (like interest which grows cumulatively) and as a mixture (an assortment of actors engaged in activities). The second dimension describes how compound learning can be enacted across three 'scales:' acts, activities and practices. By extending previous research, this thesis contributes a richer and deeper understanding of what 'Twitter Professional Development' involves, thereby helping to legitimise it within broader professional development discourse. Adding to the current literature on teachers' professional learning, this thesis reveals how significant personal-isation is in two senses: that teachers can exercise choice in what, when and how they learn; and secondly, the importance of being able to forge socio-professional connections with fellow educators in different ways. The flânographic approach and the new methods which arose within it offer wider contributions for studies exploring activities which range across online and offline spaces, and through time.

Published
2018

6. Growth Failure Prevalence in Neonates with Gastroschisis : A Statewide Cohort Study

Author

Boe, Nina, Brown, Erin, Farmer, Diana, Field, Nancy, Hedriana, Herman, Hirose, Shinjiro, James, Gina, Love, Elyse, McLennan, Amelia, Poulain, Francis, Powne, Amy, Morris, Laila Rhee, Rottkamp, Catherine, Saadai, Payam, Sunderji, Sherzana, Tache, Veronique, Yeh, Jay, Allaf, M. Baraa, Bacca, Katie, Carroll, Lisa, Crosland, Brian, Day, Robert, Duffy, Jennifer, Gibbs, David, Hameed, Afshan, Hatfield, Tamara, Iacob, Alexandra, Jolley, Jennifer, Kabeer, Mustafa, Kiciman, Nafiz, Lee, Nancy, Major, Carol, Makhoul, Joshua, Nicolau, Yona, Porto, Manuel, Post, Rebecca, Rumney, Pamela, Spiers, Lizette, Uy, Cherry, Yu, Peter, Ahmad, Irfan, Doshi, Nita, Guner, Yigit, Lai, Wyman, Renella, Pierangelo, Afshar, Yalda, Calkins, Kara, Pluym, Ilina, DeUgarte, Daniel, Devaskar, Uday, Deville, Jaime, Fajardo, Viviana, Garg, Meena, Han, Christina, Holliman, Kerry, Janzen, Carla, Jen, Howard, Kallapur, Suhas, Lee, Steven, Lerman, Steven, Murphy, Aisling, Nguyen, Tina, Rao, Rashmi, Sabnis, Animesh, Satou, Gary, Sklansky, Mark, Strobel, Katie, Sturm, Renea, Tabsh, Khalil, Wong, Thalia, Adami, Rebecca, Anton, Tracy, Ballas, Jerasimos, Bickler, Stephen, Fernandez, Erika, Hull, Andrew, Jacobs, Marni, Johnson, Diana, Kling, Karen, Lamale-Smith, Leah, Lazar, Sarah, Laurent, Louise, Liu, Tzu-Ning, Magallanes, Celestine, Melber, Dora, Parast, Mana, Perez, Mishella, Pretorius, Dolores, Ramos, Sandy, Tarsa, Maryam, Woelkers, Douglas, Zhang-Rutledge, Kathy, Golding, Ian Fraser, Moyer, Laurel, Sun, Heather, Archbold, Katie, Arcilla, Lisa, Bennet, Stacie, Brakeman, Paul, Catenacci, Melissa, Chetty, Shilpa, Copp, Hillary, Corbett, Erin, Dougherty, Valerie, Downum, Sarah, Feldstein, Vickie, Ghaffari, Neda, Goldstein, Ruth, Gonzalez-Velez, Juan, Gonzalez, Veronica, Gosnell, Kristen, Gras, Joanne, Harrison, Michael, Hogan, Whitnee, Hutchinson, Romobia, Irani, Roxanna, Jha, Priyanka, Josiah-Davis, Erna, Keller, Roberta, Kramer, Katelin, Lee, Hanmin, Lianoglou, Billie, Lucero, Jennifer, Lusk, Leslie, MacKenzie, Tippi, Mardy, Anne, Matsuda, Erin, Moon-Grady, Anita, Morgan, Tara, Murtha, Amy, Norton, Mary, Oman, Natalie, Padilla, Benjamin, Patel, Sachi, Peyandi, Shabnam, Phelps, Andrew, Poder, Liina, Post, Annalisa, Rand, Larry, Robles, Diana, Rocha, Frederico, Rosenfeld, Howard, Rosenstein, Melissa, Scudmore, Janice, Shum, Dorothy, Sobhani, Nasim, Sparks, Teresa, Swanson, Katherine, Tesfalul, Martha, Valderramos, Stephanie, Vu, Lan, Yeaton-Massey, Amanda, Strobel, Katie M., Romero, Tahmineh, Kim, Jae H., DeUgarte, Daniel A., and Calkins, Kara L.

Published
2021
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7. 3D Printing for Medical Applications: Current State of the Art and Perspectives during the COVID-19 Crisis

Author

Andrew Hagen, Megan Chisling, Kevin House, Tal Katz, Laila Abelseth, Ian Fraser, Stephen Bradley, Rebecca Kirsch, Jacob Morris, Joshua W. Giles, and Stephanie M. Willerth

Subjects
additive manufacturing, rapid prototyping, plastics, face shields, Surgery, RD1-811
Abstract

The coronavirus SARS-CoV-2 pandemic has affected over one hundred million people worldwide and has resulted in over two million deaths. In addition to the toll that coronavirus takes on the health of humans infected with the virus and the potential long term effects of infection, the repercussions of the pandemic on the economy as well as on the healthcare system have been enormous. The global supply of equipment necessary for dealing with the pandemic experienced extreme stress as healthcare systems around the world attempted to acquire personal protective equipment for their workers and medical devices for treating COVID-19. This review describes how 3D printing is currently being used in life saving surgeries such as heart and lung surgery and how 3D printing can address some of the worldwide shortage of personal protective equipment, by examining recent trends of the use of 3D printing and how these technologies can be applied during and after the pandemic. We review the use of 3D printed models for treating the long term effects of COVID-19. We then focus on methods for generating face shields and different types of respirators. We conclude with areas for future investigation and application of 3D printing technology.

Published
2021
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9. Project Management for Cultural Events: Towards a Systemic Approach

Author

Amidei, A, Argano, L, Austin, J, Bérubé J, Borrup T, Burri M, Callander, A, Carlucci, D, Caust, J, Chiaravalloti, F, Coraiola, D, Cuadrado-García, M, C. Cuyler, A.C, Paola Dubini, P, Ian Fillis, I, Quanice Floyd, Q, Flys, E. SV, Ian Fraser, I, Goodwin, K, Goyes-Yepez, C.E, Grincheva, N, Ha, K, Hemels, S, Iyengar, S, Julmi, C, Jung, Y, Keeney, K, Kim, Y, Konrad, E.D, Lagrutta, R, Lazzeretti, L, Boram Lee, B, Lee, H, Liu, J, Luo, H, Mazzoni, L, Miniero, G, Monti, A, Montoro-Pons, J.D, Newton, T, Nolin, H.R, Oliva, S, Paquette, J, Pinton, S, Pizzetti, M, Price, J, Rentschler, R, Rosenstein, C, Sacco, P.L, Santarsiero, F, Schiuma, G, Schwonik, K, Seaman, B.A, Shane, R, Sherer, P, Srakar, A, Suddaby, R, Vakharia, N, van den Ende, L, Vecco, M, Walmsley, B, Whitaker, .C, Wiggins, J, Yi, L, Argano, Lucio, Amidei, A, Argano, L, Austin, J, Bérubé J, Borrup T, Burri M, Callander, A, Carlucci, D, Caust, J, Chiaravalloti, F, Coraiola, D, Cuadrado-García, M, C. Cuyler, A.C, Paola Dubini, P, Ian Fillis, I, Quanice Floyd, Q, Flys, E. SV, Ian Fraser, I, Goodwin, K, Goyes-Yepez, C.E, Grincheva, N, Ha, K, Hemels, S, Iyengar, S, Julmi, C, Jung, Y, Keeney, K, Kim, Y, Konrad, E.D, Lagrutta, R, Lazzeretti, L, Boram Lee, B, Lee, H, Liu, J, Luo, H, Mazzoni, L, Miniero, G, Monti, A, Montoro-Pons, J.D, Newton, T, Nolin, H.R, Oliva, S, Paquette, J, Pinton, S, Pizzetti, M, Price, J, Rentschler, R, Rosenstein, C, Sacco, P.L, Santarsiero, F, Schiuma, G, Schwonik, K, Seaman, B.A, Shane, R, Sherer, P, Srakar, A, Suddaby, R, Vakharia, N, van den Ende, L, Vecco, M, Walmsley, B, Whitaker, .C, Wiggins, J, Yi, L, and Argano, Lucio

Abstract

This article is concerned with cultural events and the way they are arranged. It discusses how the implementation of the stringent rules and organizational principles of project management might prove counterproductive in cultural events. The underlying assumption is that cultural events are complex and ever-evolving systems based on creative and artistic processes, so they escape traditional planning and control practices. The complexity of cultural events can be explored through four dimensions. The first concerns the social, cultural, economic, and technological context and the relevance of the influence held by the various stakeholders. The second dimension is related to the multiplicity of objectives underlying each cultural event. The third dimension refers to the concept, the content, and the artistic and cultural creation processes behind the uniqueness of an event. Finally, the last element concerns event management and its iterative dynamic as a project where the four dimensions of complexity are intertwined. Traditional project management usually proposes tools and techniques that tend to dominate and control the project, following a deterministic approach. This attitude may be inadequate to control the environmental, strategic, creative, and managerial complexity of any cultural event, which, rather, must be explored and absorbed. Accordingly, it is suggested that a more systemic perspective be adopted through which routine project management tools are reviewed to pave the way for a new approach when organizing and managing cultural events.

Published
2024

10. Kidney and Cardiovascular Effects of Canagliflozin According to Age and Sex

Author

Tae Won Yi, Brendan Smyth, Gian Luca Di Tanna, Clare Arnott, Kathryn Cardoza, Amy Kang, Carol Pollock, Rajiv Agarwal, George Bakris, David M. Charytan, Dick de Zeeuw, Hiddo J.L. Heerspink, Bruce Neal, David C. Wheeler, Christopher P. Cannon, Hong Zhang, Bernard Zinman, Vlado Perkovic, Adeera Levin, Kenneth W. Mahaffey, Meg Jardine, Barry M. Brenner, Tom Greene, Meg J. Jardine, Gary Meininger, Nicole Li, Inna Kolesnyk, Diego Aizenberg, Roberto Pecoits-Filho, David Cherney, Gregorio Obrador, Glenn Chertow, Tara Chang, Carmel Hawley, Linong Ji, Takashi Wada, Vivekanand Jha, Soo Kun Lim, Mary Anne Lim-Abrahan, Florence Santos, Dong-Wan Chae, Shang-Jyh Hwang, Evgueniy Vazelov, Ivan Rychlík, Samy Hadjadj, Vera Krane, László Rosivall, Luca De Nicola, Alexander Dreval, Michał Nowicki, Adalbert Schiller, Larry Distiller, Jose L. Górriz, Mykola Kolesnyk, null David, C. Wheeler, Rodolfo Andres Ahuad Guerrero, Juan Pablo Albisu, Andres Alvarisqueta, Ines Bartolacci, Mario Alberto Berli, Anselmo Bordonava, Pedro Calella, Maria Cecilia Cantero, Luis Rodolfo Cartasegna, Esteban Cercos, Gabriela Cecilia Coloma, Hugo Colombo, Victor Commendatore, Jesus Cuadrado, Carlos Alberto Cuneo, Ana Maria Cusumano, Walter Guillermo Douthat, Ricardo Dario Dran, Eduardo Farias, Maria Florencia Fernandez, Hernan Finkelstein, Guillermo Fragale, Jose Osvaldo Fretes, Nestor Horacio Garcia, Anibal Gastaldi, Elizabeth Gelersztein, Jorge Archibaldo Glenny, Joaquin Pablo Gonzalez, Patricia del Carmen Gonzalez Colaso, Claudia Goycoa, Gustavo Cristian Greloni, Adrian Guinsburg, Sonia Hermida, Luis Isaias Juncos, Maria Isabel Klyver, Florencia Kraft, Fernando Krynski, Paulina Virginia Lanchiotti, Ricardo Alfonso Leon de la Fuente, Nora Marchetta, Pablo Mele, Silvia Nicolai, Pablo Antonio Novoa, Silvia Ines Orio, Fabian Otreras, Alejandra Oviedo, Pablo Raffaele, Jorge Hector Resk, Lucas Rista, Nelson Rodriguez Papini, Jorgelina Sala, Juan Carlos Santos, Lilia Beatriz Schiavi, Horacio Sessa, Tomas Smith Casabella, Maria Rosa Ulla, Maria Valdez, Augusto Vallejos, Adriana Villarino, Virginia Esther Visco, Alfredo Wassermann, Cesar Javier Zaidman, Ngai Wah Cheung, Carolyn Droste, Ian Fraser, David Johnson, Peak Mann Mah, Kathy Nicholls, David Packham, Joseph Proietto, Anthony Roberts, Simon Roger, Venessa Tsang, Roberto Abrão Raduan, Fernando Augusto Alves da Costa, Celso Amodeo, Luiz Alberto Andreotti Turatti, Rachel Bregman, Fernanda Cristina Camelo Sanches, Luis Henrique Canani, Antônio Roberto Chacra, João Lindolfo Cunha Borges, Sérgio Alberto Cunha Vêncio, Roberto Jorge da Silva Franco, Domingos d’Avila, Evandro de Souza Portes, Pedro de Souza, Luciane Mônica Deboni, Fadlo Fraige Filho, Bruno Geloneze Neto, Marcus Gomes, Suely Keiko Kohara, Elizete Keitel, Jose Francisco Kerr Saraiva, Hugo Roberto Kurtz Lisboa, Fabiana Loss de Carvalho Contieri, Rosângela Milagres, Renan Montenegro Junior, Claudia Moreira de Brito, Miguel Nasser Hissa, Ângela Regina Nazario Sabbag, Irene Noronha, Daniel Panarotto, Roberto Pecoits Filho, Márcio Antônio Pereira, Wladmir Saporito, Antonio Scafuto Scotton, Tiago Schuch, Roberto Simões de Almeida, Cássio Slompo Ramos, João Soares Felício, Fernando Thomé, Jean Carlo Tibes Hachmann, Sérgio Yamada, Cesar Yoiti Hayashida, Tarissa Beatrice Zanata Petry, Maria Teresa Zanella, Viktoria Andreeva, Angelina Angelova, Stefan Dimitrov, Veselka Genadieva, Gabriela Genova-Hristova, Kiril Hristozov, Zdravko Kamenov, Atanas Koundurdjiev, Lachezar Lozanov, Viktor Margaritov, Boyan Nonchev, Rangel Rangelov, Alexander Shinkov, Margarita Temelkova, Ekaterina Velichkova, Andrian Yakov, Naresh Aggarwal, Ronnie Aronson, Harpreet Bajaj, Guy Chouinard, James Conway, Serge Cournoyer, Gerald DaRoza, Sacha De Serres, François Dubé, Ronald Goldenberg, Anil Gupta, Milan Gupta, Sam Henein, Hasnain Khandwala, Lawrence Leiter, François Madore, Alan McMahon, Norman Muirhead, Vincent Pichette, Remi Rabasa-Lhoret, Andrew Steele, Navdeep Tangri, Ali Torshizi, Vincent Woo, Nadia Zalunardo, María Alicia Fernández Montenegro, Juan Gonzalo Godoy Jorquera, Marcelo Medina Fariña, Victor Saavedra Gajardo, Margarita Vejar, Nan Chen, Qinkai Chen, Shenglian Gan, Yaozhong Kong, Detian Li, Wenge Li, Xuemei Li, Hongli Lin, Jian Liu, Weiping Lu, Hong Mao, Yan Ren, Weihong Song, Jiao Sun, Lin Sun, Ping Tu, Guixia Wang, Jinkui Yang, Aiping Yin, Xueqing Yu, Minghui Zhao, Hongguang Zheng, Jose Luis Accini Mendoza, Edgar Arcos, Jorge Avendano, Jorge Ernesto Andres Diaz Ruiz, Luis Hernando Garcia Ortiz, Alexander Gonzalez, Eric Hernandez Triana, Juan Diego Higuera, Natalia Malaver, Dora Inés Molina de Salazar, Ricardo Rosero, Monica Alexandra Terront Lozano, Luis Valderrama Cometa, Alex Valenzuela, Ruben Dario Vargas Alonso, Ivan Villegas, Hernan Yupanqui, Dagmar Bartaskova, Petr Barton, Jana Belobradkova, Lenka Dohnalova, Tomas Drasnar, Richard Ferkl, Katarina Halciakova, Vera Klokocnikova, Richard Kovar, Jiri Lastuvka, Martin Lukac, Satu Pesickova, Karel Peterka, Jiri Pumprla, Ivan Rychlik, Frantisek Saudek, Vladimir Tesar, Martin Valis, Pavel Weiner, Stanislav Zemek, Eric Alamartine, Sophie Borot, Bertrand Cariou, Bertrand Dussol, Jean-Pierre Fauvel, Pierre Gourdy, Alexandre Klein, Yannick Le Meur, Alfred Penfornis, Ronan Roussel, Pierre-Jean Saulnier, Eric Thervet, Philippe Zaoui, Volker Burst, Markus Faghih, Grit Faulmann, Hermann Haller, Reinhold Jerwan-Keim, Stephan Maxeiner, Björn Paschen, Georg Plassmann, Ludger Rose, Ronaldo Arturo Gonzalez Orellana, Franklin Paul Haase, Juan Pablo Moreira Diaz, Luis Alberto Ramirez Roca, Jose Antonio Sánchez Arenales, José Vicente Sanchez Polo, Erick Turcios Juarez, Gyongyi Csecsei, Botond Csiky, Peter Danos, Laszlo Deak, Mihaly Dudas, Eleonora Harcsa, Katalin Keltai, Sandor Keresztesi, Krisztian Kiss, Laszlo Konyves, Lajos Major, Margit Mileder, Marta Molnar, Janos Mucsi, Tamas Oroszlan, Ivan Ory, Gyorgy Paragh, Eva Peterfai, Gizella Petro, Katalin Revesz, Robert Takacs, Sandor Vangel, Szilard Vasas, Marianna Zsom, Oomman Abraham, Raju Sree Bhushan, Dewan Deepak, Fernando M. Edwin, Natarajan Gopalakrishnan, Noble Gracious, Alva Hansraj, Dinesh Jain, C.B. Keshavamurthy, Dinesh Khullar, Sahay Manisha, Jayameena Peringat, Narayan Prasad, Rao K. Satyanarayana, Reddy Sreedhar, Melemadathil Sreelatha, Bhimavarapu Sudhakar, Ramesh Chandra Vyasam, Riccardo Bonadonna, Pietro Castellino, Antonio Ceriello, Luca Chiovato, Salvatore De Cosmo, Giuseppe Derosa, Alberto Di Carlo, Graziano Di Cianni, Giovanni Frascà, Giorgio Fuiano, Giovanni Gambaro, Giacomo Garibotto, Carlo Giorda, Fabio Malberti, Marcora Mandreoli, Edoardo Mannucci, Emanuela Orsi, Piermarco Piatti, Domenico Santoro, Ferdinando Carlo Sasso, Gaetano Serviddio, Andrea Stella, Roberto Trevisan, Anna Maria Veronelli, Luca Zanoli, Hitoshi Akiyama, Hiromi Aoki, Akimichi Asano, Tadashi Iitsuka, Shizuo Kajiyama, Susumu Kashine, Toshio Kawada, Takamoto Kodera, Hiroshi Kono, Kazunori Koyama, Yasuro Kumeda, Shozo Miyauchi, Kazuyuki Mizuyama, Tetsuji Niiya, Hiroko Oishi, Satoshi Ota, Terue Sakakibara, Masahiko Takai, Osamu Tomonaga, Mitsuru Tsujimoto, Masakiyo Wakasugi, Yasushi Wakida, Takayuki Watanabe, Masayo Yamada, Kazuhiro Yanagida, Toshihiko Yanase, Wataru Yumita, Egle Gaupsiene, Dalia Kozloviene, Antanas Navickas, Egle Urbanaviciene, Rohana Abdul Ghani, Khalid Abdul Kadir, Norsiah Ali, Mohd Daud Che Yusof, Chye Lee Gan, Mastura Ismail, Wei Yen Kong, Swee Win Lam, Li Yuan Lee, Chek Loong Loh, Anita Bhajan Manocha, Kee Sing Ng, Nik Nur Fatnoon Nik Ahmad, Vanassa Ratnasingam, Saiful Shahrizal Bin Shudim, Paranthaman Vengadasalam, Luis David Abraira Munoz, Melchor Alpizar Salazar, Juan Baas Cruz, Mario Burgos Soto, Jose Chevaile Ramos, Alfredo Chew Wong, Jose Ricardo Correa Rotter, Tonatiu Diaz Escalante, Favio Edmundo Enriquez Sosa, Fernando Flores Lozano, Luis Fernando Flota Cervera, Paul Frenk Baron, Cecilia Garcia Ballesteros, Jose David Gomez Rangel, Luis Enrique Herrera Jimenez, Sergio Saul Irizar Santana, Fernando Jimenez Flores, Hugo Laviada Molina, Rosa Isela Luna Ceballos, Belia Martin del Campo Blanco, Guadalupe Morales Franco, Oscar Tarsicio Moreno Loza, Cynthia Mustieles Rocha, Gregorio Obrador Vera, Ricardo Orozco Castellanos, Juan Peralta Calcaneo, Miguel Angel Reyes Rosano, Hiromi Rodriguez Pattzi, Juan Rosas Guzman, Isabel Erika Rucker Joerg, Sandra Berenice Saavedra Sanchez, Jose Hector Sanchez Mijangos, Pablo Serrano Sanson, Juan Alfredo Tamayo y Orozco, Eloisa Tellez Chavez, Alejandro Valdes Cepeda, Luis Venegas Carrillo, Juan Villagordoa Mesa, Rolando Zamarripa Escobedo, John Baker, Paul Noonan, Russell Scott, Robert Walker, Edward Watson, Michael Williams, Simon Young, Zaynab Abejuela, Jeimeen Agra, Grace Aquitania, Clodoaido Caringal, Rhea Severina Comia, Lalaine Delos Santos, Olivert Gomez, Cecilia Jimeno, Gerry Tan, Marsha Tolentino, Christy Yao, Yvette Ethel Yap, Ma. Dovie Lallaine Ygpuara, Renata Bijata-Bronisz, Lucyna Hotlos, Andrzej Januszewicz, Barbara Kaczmarek, Anna Kaminska, Lech Lazuka, Andrzej Madej, Stanislaw Mazur, Dorota Mlodawska-Choluj, Michal Nowicki, Grazyna Orlowska-Kowalik, Grazyna Popenda, Barbara Rewerska, Dariusz Sowinski, Liliana Monica Angelescu, Veronica Anghel, Rodica-Ioana Avram, Mihaela-Magdalena Busegeanu, Adriana Cif, Dana Cosma, Carmen Crisan, Luiza Despina Demian, Ioana Emilia Ferariu, Ildiko Halmagyi, Nicolae Hancu, Mircea Munteanu, Doru Negru, Adriana Gabriela Onaca, Ligia Petrica, Amorin Remus Popa, Aurelian-Emil Ranetti, Cristian Serafinceanu, Cristina Toarba, Alina Agafyina, Olga Barbarash, Olga Barysheva, Daniil Chizhov, Vladimir Dobronravov, Irina Glinkina, Elena Grineva, Vladimir Khirmanov, Elena Kolmakova, Tatiana Koroleva, Liudmila Kvitkova, Viacheslav Marasaev, Ashot Mkrtumyan, Tatiana Morugova, Galina Nagibovich, Oleg Nagibovich, Sergei Nedogoda, Irina Osipova, Tatiana Raskina, Yulia Samoylova, Olga Sazonova, Minara Shamkhalova, Elena Shutemova, Yuriy Shwartz, Oleg Uriasyev, Sergey Vorobyev, Anna Zateyshchikova, Dmitry Zateyshshikov, Tatyana Zykova, Slobodan Antic, Miodrag Djordjevic, Aleksandra Kendereski, Katarina Lalic, Nebojsa Lalic, Vesna Popovic-Radinovic, Jana Babikova, Olga Benusova, Ingrid Buganova, Jan Culak, Andrej Dzupina, Jana Dzuponova, Peter Fulop, Adriana Ilavska, Emil Martinka, Zuzana Ochodnicka, Daniel Pella, Iveta Smatanova, Fayzal Ahmed, Aysha Badat, Johannes Breedt, Lawrence Distiller, Vimladhevi Govender, Ravendran Govender, Mukesh Joshi, Jaco Jurgens, Gulam Latiff, Landman Lombard, Mohamed Mookadam, Nomangesi Ngcakani, Hendrik Nortje, Helena Oosthuizen, Larisha Pillay-Ramaya, Hans Prozesky, Jeevren Reddy, Paul Rheeder, Mary Seeber, Young Min Cho, In-Kyung Jeong, Sin Gon Kim, Yeong Hoon Kim, Hyuk-Sang Kwon, Min Jeong Kwon, Byung-Wan Lee, JungEun Lee, Moon-Kyu Lee, Moon-Suk Nam, Kook-Hwan Oh, Cheol- Young Park, Sun-Hee Park, Kun Ho Yoon, Pere Alvarez Garcia, Luis Asmarats Mercadal, Clara Barrios, Fernando Cereto Castro, Secundino Cigarran Guldris, Marta Dominguez Lopez, Jesus Egido de los Rios, Gema Fernandez Fresnedo, Antonio Galan Serrano, Isabel Garcia, Francisco Javier Gonzalez Martinez, Jose Esteban Jodar Gimeno, Manuel Lopez Mendoza, Tamara Malek Marin, Cristobal Morales Portillo, Maria Antonia Munar Vila, Manuel Muñoz Torres, Javier Nieto Iglesias, Jonay Pantoja Perez, Merce Perez Vera, Jose M. Portoles Perez, María Angustias Quesada Simón, Rafael Simo Canonge, Alfonso Soto Gonzalez, Manel Terns Riera, Francisco Jose Tinahones Madueno, Mercedes Velo Plaza, Chwen-Tzuei Chang, Lee-Ming Chuang, Te-Lin Hsia, Chang-Hsun Hsieh, Chih-Ching Lin, Yung- Chuan Lu, Wayne H-H Sheu, Olga Barna, Svitlana D. Bilyk, Volodymyr Botsyurko, Iryna Dudar, Ivan Fushtey, Olga Godlevska, Oleksandr Golovchenko, Olga Gyrina, Anatoliy Kazmirchuk, Iuliia Komisarenko, Oleksii Korzh, Nonna Kravchun, Oleg Legun, Borys Mankovskyy, Liliya Martynyuk, Yuriy Mostovoy, Nataliia Pashkovska, Larysa Pererva, Tetyana Pertseva, Oleksandr Samoylov, Ivan Smirnov, Yevgeniya Svyshchenko, Halyna Tomashkevych, Ivan Topchii, Nadiya Tryshchuk, Vira Tseluyko, Vadym Vizir, Maryna Vlasenko, Tetiana Zlova, Liliia Zub, Salah Abusnana, Mohamed Railey, Kamal Abouglila, Paul Ainsworth, Zishan Ali, Vijayaraman Arutchelvam, Maria Barnard, Srikanth Bellary, Emyr Davies, Mark Davies, Simon Davies, Alison Dawson, Mohsen El Kossi, Patrick English, Donald Fraser, Luigi Gnudi, Anthony Gunstone, Timothy Hall, Wasim Hanif, Alan Jackson, Andrew Johnson, Franklin Joseph, Singhan Krishnan, Mick Kumwenda, Iain MacDougall, Paul Nixon, Joseph O'Hare, Sam Philip, Shenaz Ramtoola, Manish Saxena, Davesh Sennik, Godwin Simon, Baldev Singh, Jeffrey Stephens, Anna Strzelecka, Rehan Symonds, Wayne Turner, Mona Wahba, John Wakeling, David Wheeler, Peter Winocour, Joseph Abdallah, Raied Abdullah, Matthew Abramowitz, Idalia Acosta, Joseph Aiello, Laura Akright, Ayim Akyea-Djamson, Rajendran Alappan, Radica Alicic, Amer Al-Karadsheh, Dale Crawford Allison, Carlos Arauz-Pacheco, Shahabul Arfeen, Ahmed Arif, Moogali Arvind, Naveen Atray, Ahmed Awad, Peggy Barnhill, Elizabeth Barranco, Carlos Barrera, Matthew Beacom, Venkata Behara, Diogo Belo, Rhonda Bentley-Lewis, Ramon Berenguer, Lidia Bermudez, Marializa Bernardo, Mihaela Biscoveanu, Cynthia Bowman-Stroud, Donald Brandon, Osvaldo Brusco, Robert Busch, Yamil Canaan, Alicia Chilito, Tom Christensen, Cynthia Christiano, Elena Christofides, Caroucel Chuateco, Kenneth Cohen, Robert Cohen, Debbie Cohen-Stein, Charles Cook, Daniel Coyne, Nizar Daboul, Riad Darwish, Adarsh Daswani, Kenneth Deck, Cyrus Desouza, Devasmita Dev, Monika Dhillon, Sohan Dua, Frank Eder, Ana Maria Elosegui, Mohamed El-Shahawy, John Ervin, Alberto Esquenazi, John Evans, Steven Fishbane, Juan Frias, Eugenia Galindo-Ramos, Claude Galphin, Adline Ghazi, Enrique Gonzalez, David Gorson, Anupama Gowda, Barbara Greco, Stephen Grubb, Rakesh Gulati, Jamal Hammoud, Stuart Handelsman, Israel Hartman, Kenneth Hershon, Daniel Hiser, George Hon, Radu Jacob, Maria Jaime, Aamir Jamal, Charles Kaupke, Gerald Keightley, Elizabeth Kern, Rakhi Khanna, Zeid Khitan, Sun Kim, Nelson Kopyt, Csaba Kovesdy, Gopal Krishna, Jeffrey (Jay) Kropp, Amrendra Kumar, Jayant Kumar, Neil Kumar, Jorge Kusnir, Wendy Lane, Mary Lawrence, Lawrence Lehrner, John Lentz, Dennis Levinson, Derek Lewis, Kenneth Liss, Andreas Maddux, Hiralal Maheshwari, Sreedhar Mandayam, Isam Marar, Bhasker Mehta, John Middleton, Jorge Mordujovich, Ramon Moreda, Moustafa Moustafa, Samuel Mujica Trenche, Mohanram Narayanan, Javier Narvarte, Tareq Nassar, George Newman, Brian Nichol, Philip Nicol, Josier Nisnisan, A. Kaldun Nossuli, Chamberlain Obialo, Sarah Olelewe, Michael Oliver, Andrew O'Shaughnessy, John Padron, Rohit Pankhaniya, Reginald Parker, Devesh Patel, Gnyandev Patel, Nina Patel, Humberto Pavon, Armando Perez, Carlos Perez, Alan Perlman, Karlton Pettis, Walter Pharr, Andrea Phillips, Raman Purighalla, Luis Quesada-Suarez, Rajiv Ranjan, Sanjeev Rastogi, Jakkidi Reddy, Marc Rendell, Lisa Rich, Michael Robinson, Hector Rodriguez, Sylvia Rosas, Fadi Saba, Rallabhandi Sankaram, Ravi Sarin, Robert Schreiman, David Scott, Mohamed Sekkarie, John Sensenbrenner, Muhammad Shakeel, Michael Shanik, Sylvia Shaw, Stephen Smith, Richard Solomon, Amy Sprague, Leslie Spry, Pusadee Suchinda, Senan Sultan, Prasanth Surampudi, Sherry Sussman, Anjanette Tan, Antonio Terrelonge, Michael Thompson, Fernando Trespalacios, Bruce Trippe, Pilar Trueba, Marcel Twahirwa, John Updegrove, Peter Van Buren, Mark Vannorsdall, Freemu Varghese, Pedro Velasquez-Mieyer, Sailaja Ventrapragada, Goga Vukotic, Khurram Wadud, Mark Warren, Henry Watson, Ronald Watts, Daniel Weiner, James Welker, Jean Welsh, Shelley Williams, and Michelle Zaniewski-Singh

Subjects
age, diabetes, Nephrology, kidney outcomes, sex, Diabetic kidney disease, canagliflozin, cardiovascular outcomes, chronic kidney disease, sodium/glucose cotransporter 2 inhibitors
Abstract

Rationale & Objective: It is unclear whether the effect of canagliflozin on adverse kidney and cardiovascular events in those with diabetic kidney disease varies by age and sex. We assessed the effects of canagliflozin among age group categories and between sexes in the Canagliflozin and Renal Endpoints in Diabetes with Established Nephropathy Clinical Evaluation (CREDENCE) study.Study Design: Secondary analysis of a randomized controlled trial.Setting & Participants: Participants in the CREDENCE trial.Intervention: Participants were randomly assigned to receive canagliflozin 100 mg/d or placebo.Outcomes: Primary composite outcome of kidney failure, doubling of serum creatinine concentration, or death due to kidney or cardiovascular disease. Prespecified secondary and safety outcomes were also analyzed. Outcomes were evaluated by age at baseline (Results: The mean age of the cohort was 63.0 ± 9.2 years, and 34% were female. Older age and female sex were independently associated with a lower risk of the composite of adverse kidney outcomes. There was no evidence that the effect of canagliflozin on the primary outcome (a composite of kidney failure, a doubling of serum creatinine concentration, or death from kidney or cardiovascular causes) differed between age groups (HRs, 0.67 [95% CI, 0.52-0.87], 0.63 [0.48-0.82], and 0.89 [0.61-1.29] for ages Limitations: This was a post hoc analysis with multiple comparisons.Conclusions: Canagliflozin consistently reduced the relative risk of kidney events in people with diabetic kidney disease in both sexes and across age subgroups. As a result of greater background risk, the absolute reduction in adverse kidney outcomes was greater in younger participants.Funding: This post hoc analysis of the CREDENCE trial was not funded. The CREDENCE study was sponsored by Janssen Research and Development and was conducted collaboratively by the sponsor, an academic-led steering committee, and an academic research organization, George Clinical.Trial Registration: The original CREDENCE trial was registered at ClinicalTrials.gov with study number NCT02065791.

Published
2023
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11. 3D Tissue Models as an Effective Tool for Studying Viruses and Vaccine Development

Author

Nathan Lawko, Charlie Plaskasovitis, Carling Stokes, Laila Abelseth, Ian Fraser, Ruchi Sharma, Rebecca Kirsch, Misha Hasan, Emily Abelseth, and Stephanie M. Willerth

Subjects
COVID-19, biomaterials, tissue engineering, organoids, antigen, microenvironment, Technology
Abstract

The recent SARS-CoV-2 outbreak has researchers working tirelessly to understand the virus' pathogenesis and develop an effective vaccine. The urgent need for rapid development and deployment of such a vaccine has illustrated the limitations of current practices, and it has highlighted the need for alternative models for early screening of such technologies. Traditional 2D cell culture does not accurately capture the effects of a physiologically relevant environment as they fail to promote appropriate cell-cell and cell-environment interactions. This inability to capture the intricacies of the in vivo microenvironment prevents 2D cell cultures from demonstrating the necessary properties of native tissues required for the standard infection mechanisms of the virus, thus contributing the high failure rate of drug discovery and vaccine development. 3D cell culture models can bridge the gap between conventional cell culture and in vivo models. Methods such as 3D bioprinting, spheroids, organoids, organ-on-chip platform, and rotating wall vessel bioreactors offer ways to produce physiologically relevant models by mimicking in vivo microarchitecture, chemical gradients, cell–cell interactions and cell–environment interactions. The field of viral biology currently uses 3D cell culture models to understand the interactions between viruses and host cells, which is crucial knowledge for vaccine development. In this review, we discuss how 3D cell culture models have been used to investigate disease pathologies for coronaviruses and other viruses such as Zika Virus, Hepatitis, and Influenza, and how they may apply to drug discovery and vaccine development.

Published
2021
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24. Severe symptomatic hyponatremia associated with the use of polyethylene glycol-based bowel preparation

Author

Navira Samad and Ian Fraser

Subjects
Diseases of the endocrine glands. Clinical endocrinology, RC648-665
Abstract

Colonoscopy is a useful tool in modern medicine and is increasingly employed for both diagnostic and treatment reasons. However, its effectiveness is highly reliant on the quality of bowel cleansing. Among different bowel-cleansing agents available, PEG (polyethylene glycol) is considered to be the safest cleansing agent, especially in relation to fluid and electrolyte problems. We present here a case of severe symptomatic hyponatremia that developed after the use of PEG for an elective colonoscopy. This case highlights that despite the use of PEG-based preparations, life-threatening fluid and electrolyte disturbances can still occur in patients with risk factors, such as old age, use of thiazide diuretics and SSRIs, chronic kidney disease, heart failure and a history of electrolyte problems. These patients should be closely monitored when undertaking bowel cleansing and should receive prompt care in the event of complications, to avoid permanent neurological sequelae and death. Rapid correction of sodium levels in patients requiring treatment of hyponatremia should be avoided to prevent complications such as osmotic demyelination syndrome.

Published
2017
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25. In vivo Characterization of a Selective, Orally Available, and Brain Penetrant Small Molecule GPR139 Agonist

Author

James R. Shoblock, Natalie Welty, Ian Fraser, Ryan Wyatt, Brian Lord, Timothy Lovenberg, Changlu Liu, and Pascal Bonaventure

Subjects
GPR139, habenula, serotonin, dopamine, behavior, Therapeutics. Pharmacology, RM1-950
Abstract

Recently, our group along with another demonstrated that GPR139 can be activated by L-phenylalanine (L-Phe) and L-tryptophan (L-Trp) at physiologically relevant concentrations. GPR139 is discretely expressed in brain, with highest expression in medial habenula. Not only are the endogenous ligands catecholamine/serotonin precursors, but GPR139 expressing areas can directly/indirectly regulate the activity of catecholamine/serotonin neurons. Thus, GPR139 appears expressed in an interconnected circuit involved in mood, motivation, and anxiety. The aim of this study was to characterize a selective and brain penetrant GPR139 agonist (JNJ-63533054) in relevant in vivo models. JNJ-63533054 was tested for its effect on c-fos activation in the habenula and dorsal striatum. In vivo microdialysis experiments were performed in freely moving rats to measure basal levels of serotonin or dopamine (DA) in prefrontal cortex (mPFC) and nucleus accumbens (NAc). Finally, the compound was profiled in behavioral models of anxiety, despair, and anhedonia. The agonist (10–30 mg/kg, p.o.) did not alter c-fos expression in medial habenula or dorsal striatum nor neurotransmitter levels in mPFC or NAc. JNJ-63533054 (10 mg/kg p.o.) produced an anhedonic-like effect on urine sniffing, but had no significant effect in tail suspension, with no interaction with imipramine, no effect on naloxone place aversion, and no effect on learned helplessness. In the marble burying test, the agonist (10 mg/kg p.o.) produced a small anxiolytic-like effect, with no interaction with fluoxetine, and no effect in elevated plus maze (EPM). Despite GPR139 high expression in medial habenula, an area with connections to limbic and catecholaminergic/serotoninergic areas, the GPR139 agonist had no effect on c-fos in medial habenula. It did not alter catecholamine/serotonin levels and had a mostly silent signal in in vivo models commonly associated with these pathways. The physiological function of GPR139 remains elusive.

Published
2019
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27. To sell or not to sell? Pricing strategies of newly-graduated artists

Author

Boram Lee, Ian Fraser, Ian Fillis, Lee, Boram, Fraser, Ian, and Fillis, Ian

Subjects
Marketing, LB2300, endowment effect, newly-graduated artists, NX, pricing, Business, contemporary art
Abstract

Refereed/Peer-reviewed The paper investigates the pricing strategies of newly-graduated artists and identifies innovative strategies more suited to achieving sustainable practice. Our work is novel in investigating the drivers of discrepancies between artists’ willingness-to-accept (WTA) and potential customers’ willingness-to-pay (WTP). Using mixed-methods, we explore the viewpoints of the ‘public’, by survey, and of ‘newly-graduated artists’ and ‘intermediaries’, by interviews, and interrogate price lists and sales records. Newly-graduated artists find pricing challenging, leading to ‘underpricing’ or ‘over-pricing’. Few artists make sales, reflecting discrepancies between WTA and WTP. Our work has theoretical and practical implications. Pricing reflects the ‘endowment effect’ (Thaler, 1980) and Bourdieu’s ‘avant-garde’ circuit. Our results imply a need for educational institutions and other intermediaries to offer more advice to newly-graduated artists who might benefit from adopting forms of personalized or participative pricing such as ‘Pay What You Want’ and, given the emergence of digital markets, contemporary techniques such as ‘action rules’.

Published
2022
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30. Prenatal Diagnosis Rate of Critical Congenital Heart Disease Remains Inadequate with Significant Racial/Ethnic and Socioeconomic Disparities and Technical Barriers

Author

Arpine Davtyan, Heidi Ostler, Ian Fraser Golding, and Heather Y. Sun

Abstract

Background:Prenatal diagnosis (preDx) of critical congenital heart disease (CCHD) decreases neonatal morbidity and mortality. Obstetrical fetal cardiac imaging guidelines in 2013 aimed to increase preDx. Objective: To determine the contemporary preDx rate of CCHD and identify maternal-fetal factors and variations in prenatal care that may be potential barriers. Methods: This retrospective single center study evaluated maternal demographics and characteristics of infants with CCHD (requiring cardiac catheterization or surgical intervention before 6 months-old) between 2016 and 2019. Results:58% of the 339 infants with CCHD had preDx. Infants with preDx were more likely to have mothers ≥ 35 years-old (p=0.028), family history of CHD (p=0.017), health insurance (p=0.002), or anatomic scan with perinatology (pConclusion:PreDx rates of CCHD remains inadequate across subtypes detectable by standard fetal cardiac screening views, particularly in uninsured and Hispanic communities.

Published
2023
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31. Balancing perspectives on performance: 'Measurement from the inside' and 'measurement from the outside'

Author

Boram Lee, Rodolfo Sejas‐Portillo, Ian Fraser, Lee, Boram, Sejas-Portillo, Rodolfo, and Fraser, Ian

Subjects
funding agencies, tensions, Strategy and Management, arts organizations, performance measurement
Abstract

This article investigates the nature of tensions “on the ground” between the internal and external stakeholders of arts organizations in terms of performance measurement. Based on the qualitative analysis of 19 interviews, the performance measurement practices of two different-sized arts organizations highlight internal and external stakeholders' contrasting perspectives on a number of measurement dimensions. In endeavoring to understand tensions between internal and external stakeholders, the article highlights the main differences which result from seemingly opposed ways of knowing. Internal stakeholders tend more to reflect “phronesis,” based on value-rationality, while external stakeholders are more inclined to technical (“techne”), or analytical (“episteme”) knowledge based on instrumental rationality. Nevertheless, there is some evidence of positive engagement between internal and external stakeholders. The article argues that in order to mitigate tensions, internal and external stakeholders should aim for culturally embedded understanding through evaluation-focused dialogue. In providing both theoretical contributions to nonprofit literature and managerial implications, the article offers an original perspective that challenges existing practice and calls for greater understanding of conflicting interests when different stakeholders are involved in performance measurement. Refereed/Peer-reviewed

Published
2023
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33. Transdifferentiating Astrocytes Into Neurons Using ASCL1 Functionalized With a Novel Intracellular Protein Delivery Technology

Author

Meghan Robinson, Ian Fraser, Emily McKee, Kali Scheck, Lillian Chang, and Stephanie M. Willerth

Subjects
reprogramming, transcription factors, neuroscience, small molecules, drug delivery, Biotechnology, TP248.13-248.65
Abstract

Cellular transdifferentiation changes mature cells from one phenotype into another by altering their gene expression patterns. Manipulating expression of transcription factors, proteins that bind to DNA promoter regions, regulates the levels of key developmental genes. Viral delivery of transcription factors can efficiently reprogram somatic cells, but this method possesses undesirable side effects, including mutations leading to oncogenesis. Using protein transduction domains (PTDs) fused to transcription factors to deliver exogenous transcription factors serves as an alternative strategy that avoids the issues associated with DNA integration into the host genome. However, lysosomal degradation and inefficient nuclear localization pose significant barriers when performing PTD-mediated reprogramming. Here, we investigate a novel PTD by placing a secretion signal sequence next to a cleavage inhibition sequence at the end of the target transcription factor–achaete scute homolog 1 (ASCL1), a powerful regulator of neurogenesis, resulting in superior stability and nuclear localization. A fusion protein consisting of the amino acid sequence of ASCL1 transcription factor with this novel PTD added can transdifferentiate cerebral cortex astrocytes into neurons. Additionally, we show that the synergistic action of certain small molecules improves the efficiency of the transdifferentiation process. This study serves as the first step toward developing a clinically relevant in vivo transdifferentiation strategy for converting astrocytes into neurons.

Published
2018
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35. Adaptation of the Five-Step Career Planning Strategy Framework: A Pilot Intervention Case Study

Author

Hee Jung Hong and Ian Fraser

Subjects
General Medicine
Abstract

The primary purpose of this case study was to develop, implement, and evaluate a new workshop-based intervention using the five-step career planning and reflect on feedback from participants (n = 17) with the aim of improving the intervention’s content and structure to apply it to a wider population of higher education students, including student athletes. The workshop-based intervention aimed to provide participants with opportunities to reflect on career planning and mapping while reviewing their past, present, and future in terms of both sports careers and life, generally. We provide our reflections for both applied researchers and practitioners on our experience of piloting the intervention. Semistructured interview data were collected from the participants. Analysis revealed that the workshop afforded participants with opportunities to reflect on their present and future careers. The participants also provided recommendations on how to improve future workshops. Reflections on these recommendations and on the workshop (development, implementation, and evaluation) are provided.

Published
2022
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36. Creation and consumption experience of cultural value in contemporary art

Author

Ian Fillis, Boram Lee, Ian Fraser, Fillis, Ian, Lee, Boram, and Fraser, Ian

Subjects
exhibition, marketing, creation, consumption, cultural value, art
Abstract

This article utilizes marketing theory to improve insight into the value relating to visual art creation and consumption by advancing understanding of its roles in the creation of the cultural value associated with contemporary art. This theoretical analysis enables construction of a conceptual model of value creation. The authors inform this by drawing on their qualitative research data on the cultural value of a contemporary art exhibition. Creation and sharing of value, including networks and discourses of value, are central to this agenda. Aesthetic experience and symbolic consumption are as influential or more so than instrumental measures of value. This can be visualized in a circle of value involving culture, marketing, and consumption, which shape meaning. A competency spectrum can be used to explain how and why each stakeholder behaves differently with respect to the cultural value present.

Published
2023

37. Sparsentan in patients with IgA nephropathy: a prespecified interim analysis from a randomised, double-blind, active-controlled clinical trial

Author

Hiddo J L Heerspink, Jai Radhakrishnan, Charles E Alpers, Jonathan Barratt, Stewart Bieler, Ulysses Diva, Jula Inrig, Radko Komers, Alex Mercer, Irene L Noronha, Michelle N Rheault, William Rote, Brad Rovin, Howard Trachtman, Hernán Trimarchi, Muh Geot Wong, Vlado Perkovic, Eric Alarmartine, Dong Wan Chae, Lucia Del Vecchio, Jurgen Floege, Shang-Jyh Hwang, Bojan Jelakovic, Bart Maes, Robert Malecki, Marius Miglinas, Fernando Eduardo Barbosa Nolasco, Manual Praga, Kannaiyan Rabindranath, Mai Rosenberg, Sydney Chi Wai Tang, Vladmir Tesar, Bhadran Bose, Muralikrishna Gangadharan, Stephen McDonald, Chen Peh, Sadia Jahan, Chii Yeap, Philip Clayton, Georgina Irish, Nikhil Thyagarajan, Peter Hollett, Rathika Krishnasamy, Robert Carroll, Shilpanjali Jesudason, Susan Crail, Toby Coates, Jane Waugh, Euan Noble, Kumaradevan Mahadevan, Victoria Campbell, Tania Salehi, Wai Lim, Neil Boudville, Aron Chakera, Doris Chan, Anoushka Krishnan, Yusuf Eqbal, Alastair Gillies, Eswari Vilayur, Thida Maung Maung Myint, Nicholas Gray, Melissa Cheetham, Carol Pollock, Bruce Cooper, Amanda Mather, Sarah Roxburgh, Yvonne Shen, Stefanie Stangenberg, Amanda Siriwardana, Emma O'Lone, Susan Wan, Brendon Neuen, Jeffrey Tsun Kit Ha, Dana Kim, Lauren Heath, Arunima Jain, Elaine Phua, Yan Li, Martin Gallagher, Meg Jardine, Angus Ritchie, Mona Razavian, Celine Foote, Roger Wyndham, Shaundeep Sen, Zoltan Endre, Jonathan Erlich, Mangalee Fernando, Kenneth Yong, Grant Luxton, Sradha Kotwal, Simon Roger, Vidu Wijeratne, David Packham, Ian Fraser, Bert Vandewiele, Margo Laute, Wim Lemahieu, Sofie Jamar, Sara Ombelet, Gert Meeus, Marc Decupere, Olivier Schockaert, Peter Doubel, Liesbeth Viaene, Luc Radermacher, Catherine Masset, Martial Moonen, Eric Firre, Martina Milicevic, Xavier Warling, An Vanacker, Thomas Malfait, Ivan Durlen, Ivica Horvatic, Ana Savuk, Lana Gellineo, Sandra Karanovic, Zivka Dika, Djuro Plavljanic, Ivana Mikacic, Dubravka Trajbar Kentric, Dunja Barisic, Marija Stankovic, Karolina Majstorovic Barac, Ivan Kruljac, Drasko Pavlovic, Martin Drinkovic, Ingrid Prkacin, Jerko Barbic, Zvonimir Sitas, Dunja Vujcic, Ivan Rychlik, Anna Benesova, Klara Drinovska, Karolina Kratka, Dita Maixnerova, Madis Ilmoja, Kristin Unt, Kadri Lilienthal, Asta Auerbach, Liisi Leis, Julia Piel, Annika Adoberg, Kulli Kolvald, Kristi Veermae, Kadri Telling, Elviira Seppet, Jana Uhlinova, Philippe Zaoui, Pierre-Louis Carron, Ingrid Masson, Miriana Dinic, Damien Thibaudin, Christian Broyet, Nicolas Maillard, Hesham Mohey, Christophe Mariat, Guillaume Claisse, Eric Alamartine, Bertrand Dussol, Stephane Burtey, Noemie Chiche-Jourde, Jean-Emmanuel Serre, Guillaume Jeantet, Leila Chenine, Anne Blanchard, Stephane Roueff, Eric Thervet, David Fouassier, Alexandre Buffet, Marine Livrozet, Roxane Gaisset, Alexandre Karras, Anne-Elisabeth Heng, Cyril Garrouste, Carole Philipponnet, Clementine Nicolo, Alba Atenza, Camille Lanaret, Clarisse Greze, Valentin Mayet, Clement Dumond, Yahsou Delmas, Christian Combe, Claire Rigothier, Laure Burguet, Aurore Labat, Simon Mucha, Valérie de Précigout, Thomas Weinreich, Helmut Reichel, Diliana Draganova, Lothar Wolf, Bernd Hohenstein, Sven Heinrichs, Simone Kulka, Sebahat Sat, Lea Weiland, Thilo Krueger, Gunter Wolf, Christiane Kettner, Mandy Schlosser, Johann Konstantin Herfurth, Annegret Koch, Martin Busch, Stephan Christian Werth, Martin Nitschke, Figen Cakiroglu, Franziska Sarnow, Lisa Schulz, Stefan Weiner, Nikolaus Wirtz, Eric Koester, Marcus Moeller, Eleni Stamellou, Silja Sanden, Hans Schmidt-Guertler, Wanja Bernhardt, Margret Patecki, Georg Schlieper, Kevin Schulte, Annette Girardet, Ulrich Kunzendorf, Lorraine Pui Yuen Kwan, Maggie Ming Yee Mok, Gary Chi Wang Chan, Mingyao Ma, Davina Ngoi Wah Lie, Anthony Ting Pong Chan, Cheuk Chun Szeto, Kit Chung Jack Ng, Siu Fai Cheung, Tak Tai Andrew Yue, Ka Shun Samuel Fung, Hon Tang, Ka Fai Yim, Wai Ping Law, Yick Hei Wong, Chi Kwan Darwin Lam, Sze Ho Sunny Wong, Carmelita Marcantoni, Roberta Aliotta, Francesca Deodato, Gemma Patella, Nicolino Comi, Caterina Vita, Nazareno Carullo, Davide Bolignano, Michela Musolino, Matias Trillini, Norberto Perico, Giuseppe Remuzzi, Erica Daina, Luigi Biancone, Loredana Colla, Manuel Burdese, Chiara Cogno, Elena Boaglio, Isabella Abbasciano, Carlotta Federica Zizzi, Paolo Randone, Pietro Napodano, Anna Ricchiuto, Matthias Cassia, Simone Accarino, Mario Cozzolino, Rocco Baccaro, Stefano Costanzi, Federica Di Maio, Maria Arena, Federica Urciuolo, Sara Vigano, Andrea Cavalli, Monica Limardo, Monica Bordoli, Serena Ponti, Selena Longhi, Andrea Solazzo, Francesco Giaroni, Gabriele Donati, Massimo Torreggiani, Davide Catucci, Marco Colucci, Vittoria Esposito, Ciro Esposito, Loreto Gesualdo, Flavia Capaccio, Emma Diletta Stea, Carmen Sivo, Francesca Annese, Federica Papadia, Piergiorgio Messa, Mirco Belingheri, Patrizia Passerini, Silvia Malvica, Alvita Vickiene, Urte Zakauskiene, Egle Asakiene, Inga Arune Bumblyte', Asta Stankuviene, Lina Santockiene, Ashik Hayat, Allister Williams, Peter Sizeland, Eddie Tan, Gerald Waters, Lai Wan Chan, Andrew Henderson, Angus Turnbull, Andrew McNally, Annie Reynolds, Helen Pilmore, Ian Dittmer, Paul Manley, Elizabeth Stallworthy, Tze Goh, David Semple, Michael Collins, Elizabeth Curry, Jafar Ahmed, Thu Nguyen, Agata Winiarska, Justyna Zbrzezniak, Tomasz Stompor, Magdalena Krajewska, Hanna Augustyniak-Bartosik, Dorota Zielinska, Anna Jander, Malgorzata Stanczyk, Marcin Tkaczyk, Przemyslaw Miarka, Dariusz Aksamit, Piotr Jaskowski, Wladyslaw Sulowicz, Dominik Cieniawski, Julita Gontarek-Kacprzak, Elzbieta Felicjanczuk, Norbert Kwella, Bogna Kwella, Ewa Satora, João Carlos Fernandes, Ana Marta Gomes, Marina Reis, Daniela Lopes, Catarina Almeida, Helena Sá, Ana Carolina Figueiredo, Clara Pardinhas, Edgar Almeida, Mario Raimundo, Ana Cortesão Costa, Luis Pedro Falcao Goncalves, Sara Fernandes, Sónia Silva, Catarina Teixeira, Adriana Fernandes, Fernando Nolasco, Patricia Alves, Mario Gois, Nuno Fonseca, Ana Messias, Maria Menezes, Filipa Cardoso, Helena Sousa, Joana Marques, Rui Barata, Jose Antonio Lopes, Sofia Jorge, Joana Gameiro, Jose Nuno de Almeida Agapito Fonseca, Sara Goncalves, Ana Farinha, Patricia Valerio Santos, Ana Natario, Jose Carlos de Jesus Barreto, Catarina Abrantes, Elsa Sofia Quadrado Soares, Joana de Sousa Soares Felgueiras, Liliana Cunha, Lucia Parreira, Teresa Furtado, Alvaro Vaz, Kook-Hwan Oh, Hajeong Lee, Se Joong Kim, Jong Cheol Jeong, Yeong Hoon Kim, Yunmi Kim, Hyeong Cheon Park, Hoon Young Choi, Hyung Wook Kim, Moon Hyoung Lee, Songuk Yoon, Kyu-Beck Lee, YoungYoul Hyun, Tae-Hyun Yoo, Seung Hyeok Han, Jung Tak Park, Sunggyun Kim, Young Rim Song, Jwa-Kyung Kim, Hyung-seok Lee, Narae Joo, JungEun Lee, Hye Ryoun Jang, Junseok Jeon, Wookyung Chung, HyunHee Lee, Jae Hyun Chang, Ka Yeong Chun, Ji Yong Jung, Han Ro, Aejin Kim, Sang-Kyung Jo, Jihyun Yang, Myung-Gyu Kim, SeWon Oh, Caridad Martinez Villanueva, Ana Vilar Gimeno, Gustavo Andres Useche Bonilla, Esther Tamarit, Antonio Galan Serrano, Eduardo Verde Moreno, Jose Luño Fernandez, Maria Angeles Goicoechea Diezhandino, Ursula Verdalles Guzman, Ana Perez de Jose, Alberto Ortiz Arduan, María Vanessa Pérez Gómez, Catalina Martín Cleary, Raul Fernandez Prado, Elena Goma, Jose Ballarin, Montserrat Diaz Encarnacion, Iara Da Silva Santos, Helena Marco Rusinol, Monica Furlano, Carlos Arias, Clara Barrios, Eva Rodriguez Garcia, Adriana Sierra Ochoa, Belen Vizcaino Castillo, Jonay Pantoja Perez, Mercedes Gonzalez Moya, Mari Sargsyan, Emma Calatayud Aristoy, Ana Avila Bernabeu, Leticia Perez Lluna, Tamara Malek Marin, Maria Antonia Munar Vila, Ivon Maritza Bobadilla Rico, Natalia Allende Burgos, Eduardo Gutierrez Martinez, Elena Gutierrez Solis, Angel Sevillano, Evangelina Merida Herrero, Josep Miquel Blasco Pelicano, Lida Maria Rodas Marin, Luis F Quintana, Maria Antonieta Azancot Rivero, Natalia Ramos Terrades, Clara Garcia Carro, Irene Agraz Pamplona, Mercedes Salgueira Lazo, Francisco de la Prada Alvarez, Fabiola Alonso Garcia, Wenceslao Adrian Aguilera Morales, Salia Virxinia Pol Heres, Angel Forcen, Eduardo Parra Moncasi, Cristina Medrano Villarroya, Alejandro Soria Villen, Olga Gracia Garcia, Mercedes Velo Plaza, Maria Dolores Sánchez de la Nieta, Marta Calvo Arevalo, Antolina Moreno, Secundino Cigarran Guldris, Manuel Pereira de Vicente, Bang-Gee Hsu, Chih-Hsien Wang, Cheng-Hsu Chen, Tung-Min Yu, Ming-Ju Wu, Shang-Feng Tsai, Chia-Tien Hsu, Hsien-Fu Chiu, Kang-Ju Chou, Hua-Chang Fang, Po-Tsang Lee, Hsin-Yu Chen, Chien-Liang Chen, Chien-Wei Huang, Shih-Hsiang Ou, Tzung-Yo Ho, Chih-Yang Hsu, Ming-Shan Chang, Yen-Ling Chiu, Yu-Sen Peng, Kai-Hsiang Shu, Szu-Yu Pan, Shih-Ping Hsu, Ju-Yeh Yang, Mei-Fen Pai, Po-Yu Tseng, Hon-Yen Wu, Wan-Chuan Tsai, Kuei-Ting Tung, Hung-Yuan Chen, Hung-Chun Chen, Mei-Chuan Kuo, Daw-Yang Hwang, Yi-Wen Chiu, Chi-Chih Hung, Hung-Tien Kuo, Jer-Chia Tsai, Kieran McCafferty, Suzanne Forbes, Indranil Dasgupta, Mark Thomas, Amar Mahdi, Bamidele Ajayi, Paramit Chowdhury, Theodoros Kasimatis, Dimitrios Moutzouris, Caroline Dudreuilh, Rishi Pruthi, Nick Mansfield, Gabriel Doctor, Sapna Shah, Sui Kon, Priscilla Smith, Patrick Hamilton, Durga Kanigicherla, Omar Sherin Ibrahim Ragy, Bassam Alchi, Oliver Flossmann, Farid Ghalli, Sarah Lawman, Smeeta Sinha, Constantina Chrysochou, Chukwuma Chukwu, Aine Maire De Bhailis, Saif Al Chalabi, Amy Hudson, Arun Gopu, Olivia Wickens, Joshua Storrar, Mona Wahba, Nathan Lorde, Mohammad Rony, Sian Griffin, Farah Latif, Mohammad Ali, Louise DaSilva, Jonathan Ayling-Smith, Eamon Mahdi, Lisa Willcocks, Rachel Jones, Chee Kay Cheung, Haresh Selvaskandan, Dan Pugh, Matthew Sayer, Neeraj Dhaun, Fiona Chapman, Patrick Mark, Colin Geddes, Emily McQuarrie, Rajan Patel, Laurence Solomon, Arvind Ponnusamy, Adam Morris, Pedro Okoh, Lauren Floyd, Ajay Dhaygude, Janson Leung, Christopher Goldsmith, Bhavna Pandya, Didem Tez, Ashraf Mikhail, Karen Brown, Thomas Bucknall, Mark Lambie, Roderick Comunale, Donald Brandon, Stacy Martinez, Amanda Hall, Amy Henderson, Aaron Fearday, Nicole Douthit, Brian Snow, Arnold Silva, Cathylee Sly, Christopher Keller, Robert Davidson, Jerry Meng, Robert Haws, Siddhartha Kattamanchi, Javad Mojarrab, Unnikrishnan Pillai, Richard Lafayette, Michelle O'Shaughnessy, Fahameedah Kamal, Kshama Mehta, Bruce Baker, Mario Ruiz, Praveena Jyothinagaram, Usha Peri, William Paxton, James Tumlin, Kerri McGreal, Ellen McCarthy, Cassandra Kimber, Archana Gautam, Kassem Khalil, Viet Nguyen, Raffi Minasian, Dariush Arfaania, Sam Daneshvari, Michel Zakari, Artashes Patrikyan, Rouzbeh Afsari, Christine Ayvazyan, Faisal Fakih, Mark Lagatta, Alfred Rodriguez, Jorge Enrique Monroy Avella, Ramachandra Patak, Jigar Kadakia, Gerald Appel, Wooin Ahn, Bradley Nelson, Allyson Medina, Syeda Ahmad, Yonatan Peleg, Nisha Clement, Ian Chiu, Elizabeth Hendren, Andrew Bomback, Pietro Canetta, Bruce Spinowitz, Chaim Charytan, Nishita Parikh, Sheng Kuo, Ritesh Raichoudhury, Mirela Dobre, Lavinia Negrea, Aparna Padiyar, Arksarapuk Jittirat, Nishigandha Pradhan, Ranjit Dhelaria, Saravanan Balamuthusamy, Machaiah Madhrira, Thomas Powell, Howard Lifland, Asha Bailey, Sarah Ashley Ford Sightler, Meera Patel Suthar, Heather Green, Samir Parikh, Isabelle Ayoub, Salem Almaani, Gabriel Contreras, Alessia Fornoni, Yelena Drexler, Abdallah Geara, Brittany Sheridan, Gaia Coppock, Jonathan Hogan, Carlos Gonzalez, Shamik Bhadra, Pradip Chowdhury, Kay Kyaw, May Tan, Lathika Raakesh, Elder Mendoza, Veronica Viramontes, Asghar Chaudhry, Juan Carbonell, Rajdeep Gadh, Victor Fernandez, Mohamad Kassem, Radu Jacob, Karen Wilder, Britt Newsome, Kathryn Klamm, Irina Suyumova, Laura Ann Kooienga, Catherine Janko, Dana Rizk, Bruce Julian, Dawn Caster, Erika Perez, Gunjan Garg, Nayan Gowda, Suneel Udani, Sreedhar Mandayam, Biruh Workeneh, Ali Assefi, Barbara Greco, Michael Germain, Jusmin Patel, Sarah Quinn, James Sullivan, Jeffrey Glaze, Phillip Madonia, Kellyn McMahon, Harold Giles, Sharon Adler, and Tiane Dai

Subjects
General Medicine
Published
2023

39. Variation in near-surface soil temperature drives plant assemblage insurance potential

Author

Elizabeth G. Simpson, Ian Fraser, Hillary Woolf, and William D. Pearse

Abstract

Studying how assemblages vary across environmental gradients provides a baseline for how assemblages may respond to climate change. Per the biological insurance hypothesis, assemblages with more variation in functional diversity will maintain ecosystem functions when species are lost. In complement, environmental heterogeneity supports landscape-scale ecosystem functionality (i.e. spatial insurance), when that variation includes environments with more abundant resources.We use the relationship between vascular plant functional diversity and microenvironment to identify where assemblages are most likely to maintain functionality in a mountainous fieldsite in northeastern Utah, USA. We assessed how life history strategies and information about phylogenetic differences affect these diversity-environment relationships.We found less functionally dispersed assemblages, that were shorter and more resource-conservative on hotter, more variable, south-facing slopes. In contrast, we found more functionally dispersed assemblages, that were taller and more resource-acquisitive on cooler, less variable, north-facing slopes. Herbaceous and woody perennials drove these trends. Additionally, including information about phylogenetic differences in a dispersion metric indicated that phylogeny accounts for traits we did not measure.Synthesis. At our fieldsite, soil temperature acts as an environmental filter across aspect. If soil temperature increases and becomes more variable, the function of north- vs. south-facing assemblages may be at risk for contrasting reasons. On south-facing slopes, assemblages may not have the variance in functional diversity needed to respond to more intense, stressful conditions. Conversely, assemblages on north-facing slopes may not have the resource-conservative strategies needed to persist if temperatures become hotter and more variable. We suggest that studying dispersal traits, especially of perennial species, will provide additional insight into whether this landscape will maintain function as climate changes.

Published
2022
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40. Evaluation of 3D-printer settings for producing personal protective equipment

Author

Carson Studders, Stephanie M. Willerth, Joshua W. Giles, and Ian Fraser

Subjects
Face shield, Materials science, business.product_category, Coronavirus disease 2019 (COVID-19), face shield, Shell (structure), COVID-19, Economic shortage, 3D printing, Line width, tensile testing, 3d printer, personal protective equipment, Composite material, material properties, polylactic acid, business, additive manufacturing, Personal protective equipment, Research Article, Tensile testing
Abstract

Aim: COVID-19 resulted in a shortage of personal protective equipment. Community members united to 3D-print face shield headbands to support local healthcare workers. This study examined factors altering print time and strength. Materials & methods: Combinations of infill density (50%, 100%), shell thickness (0.8, 1.2 mm), line width (0.2 mm, 0.4 mm), and layer height (0.1 mm, 0.2 mm) were evaluated through tensile testing, finite element analysis, and printing time. Results: Strength increased with increased infill (p

Published
2021
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41. The effect of SARS-CoV-2 on the nervous system: a review of neurological impacts caused by human coronaviruses

Author

Ian Fraser, Kim Arklie, Asees Kaur, Stephanie M. Willerth, Carson Studders, Colin Day, Laila Abelseth, Emily Abelseth, Rebecca Kirsch, and Kyra Teetzen

Subjects
Nervous system, viruses, Population, Central nervous system, Bioinformatics, medicine.disease_cause, Nervous System, Article, Coronavirus OC43, Human, Humans, Medicine, Critical illness polyneuropathy, skin and connective tissue diseases, education, Pandemics, Coronavirus, education.field_of_study, SARS-CoV-2, business.industry, Transmission (medicine), General Neuroscience, Multiple sclerosis, fungi, COVID-19, virus diseases, medicine.disease, respiratory tract diseases, medicine.anatomical_structure, Headaches, medicine.symptom, business
Abstract

The COVID-19 pandemic has affected millions of people worldwide. While coronaviruses typically have low rates of neurotropic effects, the massive transmission of SARS-CoV-2 suggests that a substantial population will suffer from potential SARS-CoV-2-related neurological disorders. The rapid and recent emergence of SARS-CoV-2 means little research exists on its potential neurological effects. Here we analyze the effects of similar viruses to provide insight into the potential effects of SARS-CoV-2 on the nervous system and beyond. Seven coronavirus strains (HCoV-OC43, HCoV-HKU1, HCoV-229E, HCoV-NL63, SARS-CoV, MERS-CoV, SARS-CoV-2) can infect humans. Many of these strains cause neurological effects, such as headaches, dizziness, strokes, seizures, and critical illness polyneuropathy/myopathy. Certain studies have also linked coronaviruses with multiple sclerosis and extensive central nervous system injuries. Reviewing these studies provides insight into the anticipated effects for patients with SARS-CoV-2. This review will first describe the effects of other coronaviruses that have caused severe disease (SARS-CoV, MERS-CoV) on the nervous system, as well as their proposed origins, non-neurological effects, and neurological infection mechanisms. It will then discuss what is known about SARS-CoV-2 in these areas with reference to the aforementioned viruses, with the goal of providing a holistic picture of SARS-CoV-2.

Published
2021
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44. 3D Printing for Medical Applications: Current State of the Art and Perspectives during the COVID-19 Crisis

Author

Tal Katz, Laila Abelseth, Stephen Bradley, Ian Fraser, Joshua W. Giles, Megan Chisling, Andrew Hagen, Jacob Morris, Kevin House, Rebecca Kirsch, and Stephanie M. Willerth

Subjects
Face shield, Economic growth, business.product_category, Coronavirus disease 2019 (COVID-19), RD1-811, Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), media_common.quotation_subject, 02 engineering and technology, 030204 cardiovascular system & hematology, 03 medical and health sciences, 0302 clinical medicine, State (polity), Pandemic, face shields, Personal protective equipment, media_common, rapid prototyping, biology, 021001 nanoscience & nanotechnology, 3. Good health, Extreme stress, Toll, biology.protein, Surgery, Business, plastics, 0210 nano-technology, additive manufacturing
Abstract

The coronavirus SARS-CoV-2 pandemic has affected over one hundred million people worldwide and has resulted in over two million deaths. In addition to the toll that coronavirus takes on the health of humans infected with the virus and the potential long term effects of infection, the repercussions of the pandemic on the economy as well as on the healthcare system have been enormous. The global supply of equipment necessary for dealing with the pandemic experienced extreme stress as healthcare systems around the world attempted to acquire personal protective equipment for their workers and medical devices for treating COVID-19. This review describes how 3D printing is currently being used in life saving surgeries such as heart and lung surgery and how 3D printing can address some of the worldwide shortage of personal protective equipment, by examining recent trends of the use of 3D printing and how these technologies can be applied during and after the pandemic. We review the use of 3D printed models for treating the long term effects of COVID-19. We then focus on methods for generating face shields and different types of respirators. We conclude with areas for future investigation and application of 3D printing technology.

Published
2021

45. China's economic growth and haze pollution control

Author

Ian Fraser Sanderson, Qingfei Xu, and Zhonghua Cheng

Subjects
021110 strategic, defence & security studies, Atmospheric Science, 010504 meteorology & atmospheric sciences, Natural resource economics, Control (management), 0211 other engineering and technologies, Sample (statistics), 02 engineering and technology, 01 natural sciences, Industrialisation, Kuznets curve, Natural hazard, Earth and Planetary Sciences (miscellaneous), Economics, Effective treatment, Haze pollution, China, 0105 earth and related environmental sciences, Water Science and Technology
Abstract

The Environmental Kuznets Curve, as a topic widely discussed in academia these days, needs to be further empirically tested. Taking the statistical data of 285 cities from 2003 to 2016 in China as the research sample, this paper uses a dynamic spatial panel model to analyze the impact of economic growth on haze pollution. The conclusions reveal that from an overall perspective, economic growth and haze pollution is always closely related, presenting an inverted U-shaped relationship; that is, the Environmental Kuznets Curve has been verified. Additionally, 26.84% of the sample cities in China have already exceeded the inflection point, meaning that economic growth has gradually led to the effective treatment of haze pollution. This is, however, restricted by stages of urban economic development. To be specific, economic growth has no significant impact on haze pollution when industrialization is in its infancy. Growth, however, exacerbates haze pollution in cities in the middle stages of industrialization although haze pollution does improve for cities in the later stages of industrialization. This means that Chinese cities should formulate reasonable and effective haze pollution control policies and measures according to their own economic development stage.

Published
2021
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47. Mobilizing a Whole Community: Policy and Strategy Implications of an Integrated Local System Response to a Global Health Crisis

Author

Thuy-Nga Pham, Anne Babcock, Ian Fraser, Keith Chung, Anne Wojtak, Jeff Powis, Catherine H. Yu, Mark Fam, Kate Mason, Jarred Rosenberg, Jason Altenberg, Ashnoor Rahim, Sarah Downey, and Carol Annett

Subjects
Ontario, Economic growth, medicine.medical_specialty, Primary Health Care, Coronavirus disease 2019 (COVID-19), Delivery of Health Care, Integrated, Health Policy, Public health, Community Participation, COVID-19, Global Health, Organizational Innovation, Resource Allocation, Integrated care, Long-term care, Political science, General partnership, Pandemic, Global health, medicine, Humans, Delivery of Health Care, Public Health Administration, Decision Making, Organizational, Health policy
Abstract

The East Toronto Health Partners (ETHP) include more than 50 organizations working collaboratively to create an integrated system of care in the east end of Toronto. This existing partnership proved invaluable as a platform for a rapid, coordinated local response to the COVID-19 pandemic. Months after the first wave of the pandemic began, with the daily numbers of COVID-19 cases finally starting to decline, leaders from ETHP provided preliminary reflections on two critical questions: (1) How were existing integration efforts leveraged to mobilize a response during the COVID-19 crisis? and (2) How can the response to the initial wave of COVID-19 be leveraged to further accelerate integration and better address subsequent waves and system improvements once the pandemic abates?

Published
2020
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48. Disease burden in individuals with symptomatic undiagnosed asthma or COPD

Author

Fatmah F. Alhabeeb, G.A. Whitmore, Katherine L. Vandemheen, J. Mark FitzGerald, Celine Bergeron, Catherine Lemière, Louis-Philippe Boulet, Stephen K. Field, Erika Penz, R. Andrew McIvor, Samir Gupta, Irvin Mayers, Mohit Bhutani, Paul Hernandez, Diane Lougheed, Christopher J. Licskai, Tanweer Azher, Andreanne Cote, Martha Ainslie, Ian Fraser, Masoud Mahdavian, and Shawn D. Aaron

Subjects
Pulmonary and Respiratory Medicine, History, Canada, Pulmonary Disease, Chronic Obstructive, Cross-Sectional Studies, Polymers and Plastics, Cost of Illness, Spirometry, Quality of Life, Humans, Business and International Management, Industrial and Manufacturing Engineering, Asthma
Abstract

The actual burden of COPD and asthma may be much higher than appreciated, since a large proportion of individuals are not diagnosed. Our study objective was to compare health care utilization, burden of symptoms and quality of life in subjects with self-reported respiratory symptoms who were subsequently found to have undiagnosed airflow obstruction compared to those having no airflow obstruction.This cross-sectional case-finding study used data from the Undiagnosed COPD and Asthma Population (UCAP) study. Adult subjects with respiratory symptoms who had no history of diagnosed lung disease were recruited in a two-step case-finding process using random digit-dialling of land lines and cell phones located within a 90-min radius of 16 Canadian study sites. Participants were assessed for COPD, asthma or no airflow obstruction using pre- and post-bronchodilator spirometry based on American Thoracic Society diagnostic criteria.1660 participants were recruited, of these 1615 had adequate spirometry and 331 (20.5%) subjects met spirometry criteria for undiagnosed asthma or COPD. Subjects with undiagnosed asthma or COPD had increased respiratory symptoms as assessed by the COPD Assessment Test (CAT), and higher St. George's Respiratory Questionnaire (SGRQ) scores indicating worse health-related quality of life, compared to subjects with no airflow obstruction. No between-group differences were found in health care utilization or work or school absenteeism.Undiagnosed asthma and COPD are common in Canadian adults experiencing breathing problems and are associated with a greater burden of symptoms and poorer health-related quality of life. These results suggest that patients may benefit from early identification and treatment of undiagnosed asthma and COPD.

Published
2022

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