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3. Neo-Androgynous Management: Managing the English Further Education in an Era of Neoliberalism?

Author

Corbett, Stephen and Johnston, Karen

Abstract

The study draws on mixed methods research with further education middle managers across England in order to explore whether there are gendered differences in management. There remain debates about whether there are gender differences in management or leadership. The study adds to this debate with results that reveal that women and men are behaviourally flexible, employing a repertoire of knowledge, competencies and skills, which are not necessarily gendered, in order to manage change in an increasing neoliberal further education working environment. We therefore propose a novel theoretical contribution of neo-androgynous management, which suggests 'undoing gender' in management in an education sector that has seen increase in women's employment.

Published
2023
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4. Gender Differences in Work-Life Conflict during COVID? A Research Agenda for Work-Life Conflict Post-Pandemic

Author

Johnston, Karen, Corbett, Stephen, Bezuidenhout, Adele, van Zyl, Dion, and Pasamar, Susana

Abstract

Studies on gender differences in work-life conflict have shown that women often report higher levels of work-life conflict due to social mores of undertaking a larger proportion of childcare and household work. Similarly, emergent research on the impact of the Covid pandemic on work-life conflict have shown that women experienced more work-life conflict. During the pandemic, educational work and provision took place within the home. The current study therefore sought to investigate work-life conflict for employees in the further education sector during the pandemic. The findings of the current study suggest that there were no gender differences, at least in the case of the further education sector, which is contrary to extant research on work-life conflict. Thus, there is scope to explore through future research whether there is trajectory towards gender equalitarianism in the sharing of household work, whether the pandemic as a crisis was an episodic event that necessitated gender equalitarian work distribution, or whether the blurring of boundaries between work and non-work domains is a continuum of neoliberal institutional demands.

Published
2023
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6. The impact of perioperative stroke and delirium on outcomes after surgical aortic valve replacement

Author

Miller, Marissa A., Taddei-Peters, Wendy C., Jeffries, Neal O., Buxton, Dennis, Geller, Nancy L., Gordon, David, Burke, Catherine, Lee, Albert, Smith, Tyrone, Moy, Claudia S., Gombos, Ilana Kogan, Weisel, Richard, Gardner, Timothy J., O'Gara, Patrick T., Rose, Eric A., Gelijns, Annetine C., Parides, Michael K., Ascheim, Deborah D., Moskowitz, Alan J., Bagiella, Emilia, Moquete, Ellen, Shah, Kinjal, Overbey, Jessica R., Pan, Stephanie, Chang, Helena, Chase, Melissa, Goldfarb, Seth, Gupta, Lopa, Kirkwood, Katherine, Dobrev, Edlira, Levitan, Ron, O'Sullivan, Karen, Santos, Milerva, Ye, Xia, Mack, Michael, Winkle, Rachelle, Boswell, Haley, Fenlon, Amanda, Johnson, Melissa, Jones, Jessica, Kolb, Megan, Lam, Sarah, Miranda, Lucy, Ward, Jackie, Whitman, Renessa, Zingler, Brittany, Ryan, William, Smith, Robert L., Grayburn, Paul, Nosnik, Pedro, Gillinov, A. Marc, Blackstone, Eugene H., Moazami, Nader, Starling, Randall C., Barzilai, Benico, Grimm, Richard A., Soltesz, Edward G., Katzan, Irene, Strippy, Brian, Smith, Shoi, Garcia, Michelle, Alice bowman, Mary, Geither, Carrie, Wang, Robert, Argenziano, Michael, Borger, Michael, Takayama, Hiroo, Leon, Martin B., Goldsmith, Lyn, Schwartz, Allan, Sookraj, Nadia, McCright-Gill, Talaya, Sreekanth, Sowmya, McCullough, Jock N., Iribarne, Alexander, DeSimone, Joseph P., DiScipio, Anthony W., Stokes, Henry, Ivany, Amanda St., Petty, Gaylin, Smith, Peter K., Alexander, John H., Milano, Carmelo A., Glower, Donald D., Huber, Joel, Morganlander, Joel, Mathew, Joseph P., Welsh, Stacey, Casalinova, Sarah, Johnson, Victoria, Lane, Kathleen, Smith, Derek, Tipton, Greg, Berry, Mark F., Williams, Judson B., Englum, Brian, Hartwig, Matthew, Thourani, Vinod H., Guyton, Robert, Lattouf, Omar, Chen, Edward, Vega, J. David, Baer, Jefferson, Nguyen, Duc, Halkos, Michael, Baio, Kim, Prince, Tamara, Cook, Natascha, Neill, Alexis A., Voisine, Pierre, Senechal, Mario, Dagenais, François, Laforce, Robert, Jr., O'Connor, Kim, Dussault, Gladys, Caouette, Manon, Tremblay, Hugo, Gagne, Nathalie, Dumont, Julie, Landry, Patricia, Groh, Mark A., Trichon, Benjamin H., Binns, Oliver A., Ely, Stephen W., Johnson, Alan M., Hansen, Todd H., Short, John G., Taylor, Reid D., Mangusan, Ralph, Nanney, Tracy, Aubart, Holly, Cross, Kristin, McPeters, Leslie, Riggsbee, Christina, Rixey, Lucy, Michler, Robert E., DeRose, Joseph J., Jr., Goldstein, Daniel J., Bello, Ricardo A., Taub, Cynthia, Spevack, Daniel, Kirchoff, Kathryn, Meli, Rebecca, Garcia, Juan, Goldenberg, Jon, Kealy, Lauren, Perrault, Louis P., Bouchard, Denis, Tanguay, Jean François, O'Meara, Eileen, Lacharité, Jonathan, Robichaud, Sophie, Horvath, Keith A., Corcoran, Philip C., Siegenthaler, Michael P., Murphy, Mandy, Iraola, Margaret, Greenberg, Ann, Kumkumian, Greg, Milner, Mark, Nadareishvili, Zurab, Whitson, Bryan A., Hasan, Ayesha, McDavid, Asia, Fadorsen, Denise, Ouzounian, Maral, Yau, Terry, Farkouh, Michael, Woo, Anna, Cusimano, Robert James, David, Tirone, Feindel, Christopher, Fumakia, Nishit, Christie, Shakira, Mullen, John C., Bissonauth, Asvina, Hripko, Alexandra, Gammie, James S., Noor, Zahid, Mackowick, Kristen, Deasey, Stephanie, Al-Suqi, Manal, Collins, Julia, Acker, Michael A., Messé, Steven, Kirkpatrick, James, Mayer, Mary Lou, McDonald, Caitlin, Fok, Holley, Maffei, Breanna, Cresse, Stephen, Gepty, Christine, Bowdish, Michael, Starnes, Vaughn A., Shavalle, David, Heck, Christi, Hackmann, Amy, Baker, Craig, Fleischman, Fernando, Cunningham, Mark, Lozano, Edward, Hernandez, Michelle, Ailawadi, Gorav, Kron, Irving L., Johnston, Karen, Ghanta, Ravi K., Dent, John M., Kern, John, Yarboro, Leora, Ragosta, Michael, Annex, Brian, Bergin, Jim, Burks, Sandra, Cosner, Mike, Green, China, Loya, Samantha, Kim, Hye Ryun, Bull, David A., Desvigne-Nickens, Patrice, Dixon, Dennis O., Gottesman, Rebecca, Haigney, Mark, Holubkov, Richard, Iadecola, Constantino, Jacobs, Alice, Meslin, Eric M., Murkin, John M., Spertus, John A., Sellke, Frank, McDonald, Cheryl L., Canty, John, Dickert, Neal, Ikonomidis, John S., Kim, KyungMann, Williams, David O., Yancy, Clyde W., Chaturvedi, Seemant, Chimowitz, Marc, Fang, James C., Richenbacher, Wayne, Rao, Vivek, Furie, Karen L., Miller, Rachel, Cook, Jennifer, D'Alessandro, David, Han, Frederick, Pinney, Sean, Walsh, Mary N., Greer, David, Ishida, Koto, Stapf, Christian, Hung, Judy, Zeng, Xin, Hung, David, Satitthummanid, Sudarat, Billelo, Michel, Davatzikos, Christos, Erus, Guray, Karpf, Lauren, Desiderio, Lisa, Browndyke, Jeffrey N., James, Michael L., Toulgoat-Dubois, Yanne, Brassard, Rachele, Virmanu, Renu, Romero, Maria E., Braumann, Ryan, Messé, Steven R., Mack, Michael J., Southerland, Andrew M., Moy, Claudia Scala, and Bowdish, Michael E.

Published
2024
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7. The Utility of Domain-Specific End Points in Acute Stroke Trials

Author

Cramer, Steven C, Wolf, Steven L, Saver, Jeffrey L, Johnston, Karen C, Mocco, J, Lansberg, Maarten G, Savitz, Sean I, Liebeskind, David S, Smith, Wade, Wintermark, Max, Elm, Jordan J, Khatri, Pooja, Broderick, Joseph P, Janis, Scott, Chen, Daofen, Dromerick, Alexander, Dunning, Kari, Grande, Andrew W, Marshall, Randolph S, Meinzer, Caitlyn, Page, Stephen, Reiss, Aimee, Richards, Lorie, Wechsler, Lawrence, Winstein, Carolee, Bushnell, Cheryl, Edwards, Dorothy, Lo, Warren, Lee, Jin-Moo, Amlie-Lefond, Catherine M, Albers, Gregory W, Dempsey, Robert, Gropen, Toby I, Jauch, Edward C, Leira, Enrique C, Martin, Renee, Meyer, Brett C, Schindler, Kiva, Scott, Phillip, Singhal, Aneesh B, and Moy, Claudia S

Subjects
Biomedical and Clinical Sciences, Allied Health and Rehabilitation Science, Clinical Sciences, Health Sciences, Neurosciences, Endpoint Determination, Humans, Research Design, Stroke, Treatment Outcome, brain, infarction, neurons, outcome assessment, reperfusion, NIH StrokeNet Recovery and Rehabilitation Group and the Acute Stroke Group*, Cardiorespiratory Medicine and Haematology, Neurology & Neurosurgery, Clinical sciences, Allied health and rehabilitation science
Abstract

Domain-specific endpoints are assessments that correspond to the output of individual neural systems and are useful for capturing treatment effects on specific behaviors. By contrast, global endpoints combine several attributes into a single score and are useful for capturing broad treatment effects in a summary way. While global endpoints have become the de facto mechanism required to define benefit in stroke trials, they also have important limitations, some of which might be addressed by simultaneously measuring domain-specific endpoints. Substantial opportunity remains to identify quantifiable patient benefit that would otherwise not be captured by global endpoints. Potential advantages of incorporating domain-specific endpoints in acute stroke trials are discussed, such as increased granularity of measurement, improved understanding of how therapies affect the brain between acute treatment and day 90, and optimized therapeutic translation. Potential disadvantages are also considered, including time and cost of administering domain-specific endpoints, as well as statistical implications. Domain-specific endpoints and global endpoints are not mutually exclusive, and both capture clinical benefits to patients. Incorporating a broader set of outcome assessments in stroke trials, including both global and domain-specific endpoints, is warranted.

Published
2021

8. Importance of Long-Acting Injectable Antipsychotic Preparation, Administration, and Injection Site Tolerability: A Focus on Paliperidone Palmitate Once-Every-6-Months Formulation

Author

Krozer, Steven, Johnston, Karen L., Najarian, Dean, Wang, Steven, Fua, Sherry, Kern Sliwa, Jennifer, and Lopena, Oliver

Subjects
Patient compliance
Abstract

Purpose. This post hoc analysis assessed the importance of proper paliperidone palmitate (PP) dose preparation prior to administration and evaluated injection site reactions after dorsogluteal injection of PP once-every-6-months (PP6M) and once-every-3-months (PP3M) formulations from a double-blind (DB) noninferiority study. Design and Methods. Clinically stable patients receiving moderate/high doses of PP once-monthly (PP1M) (156mg/mL; 234mg/1.5mL) or PP3M (546mg/1.75mL; 819mg/2.63mL) were randomly assigned 2:1 to corresponding dorsogluteal injections of PP6M (1092mg/3.5mL; 1560mg/5mL) or PP3M (546mg/1.75mL; 819mg/2.63mL) during a 12-month DB phase. Patients receiving PP6M injections received alternating matching placebo injections every 3months between active doses to maintain blinding. Prior to administration, each PP formulation was prepared per specific instructions to ensure complete resuspension of the medication. Findings. Of 895 PP6M injections, one of two incomplete injections was possibly related to insufficient shaking before administration; neither resulted in an adverse reaction. After dorsogluteal administration, 59 of 478 patients who received PP6M (12.3%) and 11 of 224 patients who received PP3M (4.9%) reported an injection site-related treatment-emergent adverse event (TEAE), with pain being the most commonly reported (7.7% and 4.0%, respectively). Patient-reported pain decreased from baseline to end point in both groups. During the DB phase, injection site-related TEAEs associated with PP6M injections up to 5mL and PP3M injections up to 2.63mL were mild to moderate in severity; none were reported as serious, resulted in treatment discontinuation, or required dermatological consultation. Practice Implications. These results inform provider and patient expectations of PP6M administration and reinforce the importance of proper PP dose preparation and administration; future work could assess safety data from real-world clinical practice. This trial is registered with NCT03345342., Author(s): Steven Krozer [1]; Karen L. Johnston (corresponding author) [2]; Dean Najarian [2]; Steven Wang [3]; Sherry Fua [2]; Jennifer Kern Sliwa [2]; Oliver Lopena [2] 1. Introduction Long-acting injectable [...]

Published
2023
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19. Collateral status, hyperglycemia, and functional outcome after acute ischemic stroke

Author

Arteaga, Daniel F., Ulep, Robin, Kumar, Kevin K., Southerland, Andrew M., Conaway, Mark R., Faber, James, Wintermark, Max, Joyner, David, Sharashidze, Vera, Hirsch, Karen, Giurgiutiu, Dan-Victor, Hannawi, Yousef, Aziz, Yasmin, Shutter, Lori, Visweswaran, Anita, Williams, Alana, Williams, Kori, Gunter, Sonya, Haughey, Heather M., Bruno, Askiel, Johnston, Karen C., and Patel, Vishal N.

Published
2022
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21. 'Letting it be': a grounded theory about dementia care in Fiji.

Author

Johnston, Karen, Qaloewai, Sefanaia, Rasavuka, Taniela, Preston, Robyn, Strivens, Edward, and Larkins, Sarah

Subjects
ELDER care, MIDDLE-income countries, QUALITATIVE research, FOCUS groups, INTERVIEWING, JUDGMENT sampling, CULTURAL values, FAMILY attitudes, THEMATIC analysis, ATTITUDES of medical personnel, ATTITUDES toward mental illness, RESEARCH methodology, DEMENTIA, GROUNDED theory, SOCIAL support, FAMILY support, PUBLIC welfare, CAREGIVER attitudes, LOW-income countries, DEMENTIA patients, WELL-being
Abstract

Objectives: This research study aimed to discover how dementia affecting older people was perceived, experienced, and managed by stakeholders in the Pacific Island country of Fiji. Method: A transformational grounded theory approach was used. Semi-structured interviews and focus groups with key stakeholders in the major towns of Suva, Lautoka, and Nadi were carried out. Transcripts were analysed in line with transformational grounded theory methods. Results: A total of 50 participants (40 service providers, eight family caregivers, one person with dementia, and one village elder) shared their views and experiences about dementia. A grounded theory about dementia care management was constructed. 'Letting it be' is the grounding socio-cultural construct that interweaves and binds together the processes of dementia care management. It expresses a compassionate approach to caring for older people with dementia that involves searching for knowledge and support, and application of traditional care practices within the strength of family and community networks. Conclusion: In Fiji, support for dementia centres on the integration of community understandings, and promotion of cultural values of wellbeing and care, with service provision. It also focuses on support for families and communities through social welfare, community networks, and education. [ABSTRACT FROM AUTHOR]

Published
2024
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30. Progression of Tricuspid Regurgitation After Surgery for Ischemic Mitral Regurgitation

Author

Miller, Marissa A., Taddei-Peters, Wendy C., Buxton, Dennis, Caulder, Ron, Geller, Nancy L., Gordon, David, Jeffries, Neal O., Lee, Albert, Moy, Claudia S., Gombos, Ilana Kogan, Ralph, Jennifer, Weisel, Richard D., Gardner, Timothy J., O’Gara, Patrick T., Rose, Eric A., Gelijns, Annetine C., Parides, Michael K., Ascheim, Deborah D., Moskowitz, Alan J., Bagiella, Emilia, Moquete, Ellen, Chang, Helena, Chase, Melissa, Foo, James, Chen, Yingchun, Goldfarb, Seth, Gupta, Lopa, Kirkwood, Katherine, Dobrev, Edlira, Levitan, Ron, O’Sullivan, Karen, Overbey, Jessica, Santos, Milerva, Williams, Deborah, Weglinski, Michael, Williams, Paula, Wood, Carrie, Ye, Xia, Nielsen, Sten Lyager, Wiggers, Henrik, Malgaard, Henning, Mack, Michael, Adame, Tracine, Settele, Natalie, Adams, Jenny, Ryan, William, Smith, Robert L., Grayburn, Paul, Chen, Frederick Y., Nohria, Anju, Cohn, Lawrence, Shekar, Prem, Aranki, Sary, Couper, Gregory, Davidson, Michael, Bolman, R. Morton, III, Burgess, Anne, Conboy, Debra, Lawrence, Rita, Noiseux, Nicolas, Stevens, Louis-Mathieu, Prieto, Ignacio, Basile, Fadi, Dionne, Joannie, Fecteau, Julie, Blackstone, Eugene H., Gillinov, A. Marc, Lackner, Pamela, Berroteran, Leoma, Dolney, Diana, Fleming, Suzanne, Palumbo, Roberta, Whitman, Christine, Sankovic, Kathy, Sweeney, Denise Kosty, Geither, Carrie, Doud, Kristen, Pattakos, Gregory, Clarke, Pamela A., Argenziano, Michael, Williams, Mathew, Goldsmith, Lyn, Smith, Craig R., Naka, Yoshifumi, Stewart, Allan, Schwartz, Allan, Bell, Daniel, Van Patten, Danielle, Sreekanth, Sowmya, Smith, Peter K., Alexander, John H., Milano, Carmelo A., Glower, Donald D., Mathew, Joseph P., Harrison, J. Kevin, Welsh, Stacey, Berry, Mark F., Parsa, Cyrus J., Tong, Betty C., Williams, Judson B., Ferguson, T. Bruce, Kypson, Alan P., Rodriguez, Evelio, Harris, Malissa, Akers, Brenda, O'Neal, Allison, Puskas, John D., Thourani, Vinod H., Guyton, Robert, Baer, Jefferson, Baio, Kim, Neill, Alexis A., Voisine, Pierre, Senechal, Mario, Dagenais, François, O’Connor, Kim, Dussault, Gladys, Ballivian, Tatiana, Keilani, Suzanne, Speir, Alan M., Magee, Patrick, Ad, Niv, Keyte, Sally, Dang, Minh, Slaughter, Mark, Headlee, Marsha, Moody, Heather, Solankhi, Naresh, Birks, Emma, Groh, Mark A., Shell, Leslie E., Shepard, Stephanie A., Trichon, Benjamin H., Nanney, Tracy, Hampton, Lynne C., Mangusan, Ralph, Michler, Robert E., D'Alessandro, David A., DeRose, Joseph J., Jr., Goldstein, Daniel J., Bello, Ricardo, Jakobleff, William, Garcia, Mario, Taub, Cynthia, Spevak, Daniel, Swayze, Roger, Sookraj, Nadia, Perrault, Louis P., Basmadjian, Arsène-Joseph, Bouchard, Denis, Carrier, Michel, Cartier, Raymond, Pellerin, Michel, Tanguay, Jean François, El-Hamamsy, Ismail, Denault, André, Demers, Philippe, Jonathan Lacharité, Sophie Robichaud, Horvath, Keith A., Corcoran, Philip C., Siegenthaler, Michael P., Murphy, Mandy, Iraola, Margaret, Greenberg, Ann, Sai-Sudhakar, Chittoor, Hasan, Ayseha, McDavid, Asia, Kinn, Bradley, Pagé, Pierre, Sirois, Carole, Latter, David, Leong-Poi, Howard, Bonneau, Daniel, Errett, Lee, Peterson, Mark D., Verma, Subodh, Feder-Elituv, Randi, Cohen, Gideon, Joyner, Campbell, Fremes, Stephen E., Moussa, Fuad, Christakis, George, Karkhanis, Reena, Yau, Terry, Farkouh, Michael, Woo, Anna, Cusimano, Robert James, David, Tirone, Feindel, Christopher, Garrard, Lisa, Fredericks, Suzanne, Mociornita, Amelia, Mullen, John C., Choy, Jonathan, Meyer, Steven, Kuurstra, Emily, Gammie, James S., Young, Cindi A., Beach, Dana, Villanueva, Robert, Acker, Michael A., Atluri, Pavan, Woo, Y. Joseph, Mayer, Mary Lou, Bowdish, Michael, Starnes, Vaughn A., Shavalle, David, Matthews, Ray, Javadifar, Shadi, Romar, Linda, Kron, Irving L., Ailawadi, Gorav, Johnston, Karen, Dent, John M., Kern, John, Keim, Jessica, Burks, Sandra, Gahring, Kim, Bull, David A., Desvigne-Nickens, Patrice, Dixon, Dennis O., Haigney, Mark, Holubkov, Richard, Jacobs, Alice, Miller, Frank, Murkin, John M., Spertus, John, Wechsler, Andrew S., Sellke, Frank, McDonald, Cheryl L., Byington, Robert, Dickert, Neal, Ikonomidis, John S., Williams, David O., Yancy, Clyde W., Fang, James C., Giannetti, Nadia, Richenbacher, Wayne, Rao, Vivek, Furie, Karen L., Miller, Rachel, Pinney, Sean, Roberts, William C., Walsh, Mary N., Hung, Judy, Zeng, Xin, Kilcullen, Niamh, Hung, David, Keteyian, Stephen J., Brawner, Clinton A., Aldred, Heather, Browndyke, Jeffrey, Toulgoat-Dubois, Yanne, Bertrand, Philippe B., Overbey, Jessica R., Levine, Robert A., Mack, Michael J., Giustino, Gennaro, and Bowdish, Michael E.

Published
2021
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31. Translational Stroke Research

Author

Bosetti, Francesca, Koenig, James I, Ayata, Cenk, Back, Stephen A, Becker, Kyra, Broderick, Joseph P, Carmichael, S Thomas, Cho, Sunghee, Cipolla, Marilyn J, Corbett, Dale, Corriveau, Roderick A, Cramer, Steven C, Ferguson, Adam R, Finklestein, Seth P, Ford, Byron D, Furie, Karen L, Hemmen, Thomas M, Iadecola, Costantino, Jakeman, Lyn B, Janis, Scott, Jauch, Edward C, Johnston, Karen C, Kochanek, Patrick M, Kohn, Harold, Lo, Eng H, Lyden, Patrick D, Mallard, Carina, McCullough, Louise D, McGavern, Linda M, Meschia, James F, Moy, Claudia S, Perez-Pinzon, Miguel A, Ramadan, Ipolia, Savitz, Sean I, Schwamm, Lee H, Steinberg, Gary K, Stenzel-Poore, Mary P, Tymianski, Michael, Warach, Steven, Wechsler, Lawrence R, Zhang, John H, and Koroshetz, Walter

Subjects
Age Factors, Animals, Chronic Disease, Comorbidity, Disease Models, Animal, Humans, Recovery of Function, Research, Sex Factors, Stroke, Thrombectomy, Thrombolytic Therapy, Translational Research, Biomedical, animal model, biomarker, outcome, recovery, reperfusion, Cardiorespiratory Medicine and Haematology, Clinical Sciences, Neurosciences, Neurology & Neurosurgery
Published
2017

32. Translational Stroke Research: Vision and Opportunities.

Author

Bosetti, Francesca, Koenig, James I, Ayata, Cenk, Back, Stephen A, Becker, Kyra, Broderick, Joseph P, Carmichael, S Thomas, Cho, Sunghee, Cipolla, Marilyn J, Corbett, Dale, Corriveau, Roderick A, Cramer, Steven C, Ferguson, Adam R, Finklestein, Seth P, Ford, Byron D, Furie, Karen L, Hemmen, Thomas M, Iadecola, Costantino, Jakeman, Lyn B, Janis, Scott, Jauch, Edward C, Johnston, Karen C, Kochanek, Patrick M, Kohn, Harold, Lo, Eng H, Lyden, Patrick D, Mallard, Carina, McCullough, Louise D, McGavern, Linda M, Meschia, James F, Moy, Claudia S, Perez-Pinzon, Miguel A, Ramadan, Ipolia, Savitz, Sean I, Schwamm, Lee H, Steinberg, Gary K, Stenzel-Poore, Mary P, Tymianski, Michael, Warach, Steven, Wechsler, Lawrence R, Zhang, John H, and Koroshetz, Walter

Subjects
Animals, Humans, Disease Models, Animal, Chronic Disease, Thrombolytic Therapy, Thrombectomy, Age Factors, Comorbidity, Sex Factors, Recovery of Function, Research, Stroke, Translational Medical Research, animal model, biomarker, outcome, recovery, reperfusion, Neurology & Neurosurgery, Cardiorespiratory Medicine and Haematology, Clinical Sciences, Neurosciences
Published
2017

33. Biexponential I = 3/2 Spin–Lattice Relaxation in the Solid State: Multiple-Quantum 7 Li NMR as a Probe of Fast Ion Dynamics

Author

Wimperis, Stephen, Rudman, George E., Johnston, Karen E., Wimperis, Stephen, Rudman, George E., and Johnston, Karen E.

Abstract

Spin–lattice relaxation measurements are used in 7Li NMR studies of materials of potential use in solid-state Li-ion batteries as a probe of ion mobility on a fast (nanosecond to picosecond) time scale. The relaxation behavior is often analyzed by assuming exponential behavior or, equivalently, a single T 1 time constant. However, the spin–lattice relaxation of spin I = 3/2 nuclei, such as 7Li, is in general biexponential; this is a fundamental property of I = 3/2 nuclei and unrelated to any compartmentalization within the solid. Although the possibility of biexponential 7Li (and other I = 3/2 nuclei) spin–lattice relaxation in the solid state has been noted by a number of authors, it can be difficult to observe unambiguously using conventional experimental NMR techniques, such as inversion or saturation recovery. In this work, we show that triple-quantum-filtered NMR experiments, as previously exploited in I = 3/2 NMR of liquids, can be used in favorable circumstances to observe and readily quantify biexponential 7Li spin–lattice relaxation in solids with high ion mobility. We demonstrate a triple-quantum-filtered inversion-recovery experiment on the candidate solid electrolyte material Li2OHCl at 325 K, which has previously been shown to exhibit fast ion mobility, and we also introduce a novel triple-quantum-filtered saturation-recovery experiment. The results of these solid-state NMR experiments are less straightforward than those in liquids as a consequence of the unwanted direct excitation of triple-quantum coherences by the weak (compared with the unaveraged 7Li quadrupolar interaction) pulses used, but we show that this unwanted excitation can be accounted for and, in the example shown here, does not impede the extraction of the two 7Li spin–lattice relaxation times.

Published
2024

36. Cost-effectiveness of coronary artery bypass grafting plus mitral valve repair versus coronary artery bypass grafting alone for moderate ischemic mitral regurgitation

Author

Miller, Marissa A., Taddei-Peters, Wendy C., Buxton, Dennis, Caulder, Ron, Geller, Nancy L., Gordon, David, Jeffries, Neal O., Lee, Albert, Moy, Claudia S., Gombos, Ilana Kogan, Ralph, Jennifer, Weisel, Richard, Gardner, Timothy J., O'Gara, Patrick T., Rose, Eric A., Gelijns, Annetine C., Parides, Michael K., Ascheim, Deborah D., Moskowitz, Alan J., Bagiella, Emilia, Moquete, Ellen, Chang, Helena, Chase, Melissa, Chen, Yingchun, Goldfarb, Seth, Gupta, Lopa, Kirkwood, Katherine, Dobrev, Edlira, Levitan, Ron, O'Sullivan, Karen, Overbey, Jessica, Santos, Milerva, Weglinski, Michael, Williams, Paula, Wood, Carrie, Ye, Xia, Nielsen, Sten Lyager, Wiggers, Henrik, Malgaard, Henning, Mack, Michael, Adame, Tracine, Settele, Natalie, Adams, Jenny, Ryan, William, Smith, Robert L., Grayburn, Paul, Chen, Frederick Y., Nohria, Anju, Cohn, Lawrence, Shekar, Prem, Aranki, Sary, Couper, Gregory, Davidson, Michael, Bolman, R. Morton, III, Burgess, Anne, Conboy, Debra, Noiseux, Nicolas, Stevens, Louis-Mathieu, Prieto, Ignacio, Basile, Fadi, Dionne, Joannie, Fecteau, Julie, Blackstone, Eugene H., Gillinov, A. Marc, Lackner, Pamela, Berroteran, Leoma, Dolney, Diana, Fleming, Suzanne, Palumbo, Roberta, Whitman, Christine, Sankovic, Kathy, Sweeney, Denise Kosty, Pattakos, Gregory, Clarke, Pamela A., Argenziano, Michael, Williams, Mathew, Goldsmith, Lyn, Smith, Craig R., Naka, Yoshifumi, Stewart, Allan, Schwartz, Allan, Bell, Daniel, Van Patten, Danielle, Sreekanth, Sowmya, Smith, Peter K., Alexander, John H., Milano, Carmelo A., Glower, Donald D., Mathew, Joseph P., Harrison, J. Kevin, Welsh, Stacey, Berry, Mark F., Parsa, Cyrus J., Tong, Betty C., Williams, Judson B., Ferguson, T. Bruce, Kypson, Alan P., Rodriguez, Evelio, Harris, Malissa, Akers, Brenda, O'Neal, Allison, Puskas, John D., Thourani, Vinod H., Guyton, Robert, Baer, Jefferson, Baio, Kim, Neill, Alexis A., Voisine, Pierre, Senechal, Mario, Dagenais, François, O'Connor, Kim, Dussault, Gladys, Ballivian, Tatiana, Keilani, Suzanne, Speir, Alan M., Magee, Patrick, Ad, Niv, Keyte, Sally, Dang, Minh, Slaughter, Mark, Headlee, Marsha, Moody, Heather, Solankhi, Naresh, Birks, Emma, Groh, Mark A., Shell, Leslie E., Shepard, Stephanie A., Trichon, Benjamin H., Nanney, Tracy, Hampton, Lynne C., Michler, Robert E., D'Alessandro, David A., DeRose, Joseph J., Jr., Goldstein, Daniel J., Bello, Ricardo, Jakobleff, William, Garcia, Mario, Taub, Cynthia, Spevak, Daniel, Swayze, Roger, Perrault, Louis P., Basmadjian, Arsène-Joseph, Bouchard, Denis, Carrier, Michel, Cartier, Raymond, Pellerin, Michel, Tanguay, Jean François, El-Hamamsy, Ismail, Denault, André, Demers, Philippe, Robichaud, Sophie, Horvath, Keith A., Corcoran, Philip C., Siegenthaler, Michael P., Murphy, Mandy, Iraola, Margaret, Greenberg, Ann, Sai-Sudhakar, Chittoor, Hasan, Ayseha, McDavid, Asia, Kinn, Bradley, Pagé, Pierre, Sirois, Carole, Latter, David, Leong-Poi, Howard, Bonneau, Daniel, Errett, Lee, Peterson, Mark D., Verma, Subodh, Feder-Elituv, Randi, Cohen, Gideon, Joyner, Campbell, Fremes, Stephen E., Moussa, Fuad, Christakis, George, Karkhanis, Reena, Yau, Terry, Farkouh, Michael, Woo, Anna, Cusimano, Robert James, David, Tirone, Feindel, Christopher, Garrard, Lisa, Fredericks, Suzanne, Mociornita, Amelia, Mullen, John C., Choy, Jonathan, Meyer, Steven, Kuurstra, Emily, Gammie, James S., Young, Cindi A., Beach, Dana, Acker, Michael A., Atluri, Pavan, Woo, Y. Joseph, Mayer, Mary Lou, Bowdish, Michael, Starnes, Vaughn A., Shavalle, David, Matthews, Ray, Javadifar, Shadi, Romar, Linda, Kron, Irving L., Ailawadi, Gorav, Johnston, Karen, Dent, John M., Kern, John, Keim, Jessica, Burks, Sandra, Gahring, Kim, Bull, David A., Desvigne-Nickens, Patrice, Dixon, Dennis O., Haigney, Mark, Holubkov, Richard, Jacobs, Alice, Miller, Frank, Murkin, John M., Spertus, John, Wechsler, Andrew S., Sellke, Frank, McDonald, Cheryl L., Byington, Robert, Dickert, Neal, Ikonomidis, John S., Williams, David O., Yancy, Clyde W., Fang, James C., Giannetti, Nadia, Richenbacher, Wayne, Rao, Vivek, Furie, Karen L., Miller, Rachel, Pinney, Sean, Roberts, William C., Walsh, Mary N., Keteyian, Stephen J., Brawner, Clinton A., Aldred, Heather, Hung, Judy, Zeng, Xin, Browndyke, Jeffrey, Toulgoat-Dubois, Yanne, Ferket, Bart S., Hohmann, Samuel F., Chang, Helena L., Mick, Stephanie L., Hung, Judy W., Overbey, Jessica R., and Lala, Anuradha

Published
2020
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40. Adsorption of polyiodobenzene molecules on the Pt(111) surface using van der Waals density functional theory

Author

Johnston, Karen, Pekoz, Rengin, and Donadio, Davide

Subjects
Density functional calculations, Adsorption, van der Waals interactions, Platinum, Condensed Matter Physics, Quantum Physics, Physical Chemistry (incl. Structural), Chemical Physics
Abstract

Adsorption of aromatic molecules on surfaces is widely studied due to applications in molecular electronics. In this work, the adsorption of iodobenzene molecules on the Pt(111) surface has been studied using density functional theory. Iodobenzene molecules, with various numbers of iodine atoms, have two non-dissociative adsorption minima. One structure exhibits chemisorption between the ring and the surface (short-range) and the other structure exhibits chemisorption between the iodine ions and the surface (long-range). Both structures have a strong van der Waals interaction with the surface. In general, the adsorption energy increases as the number of iodine atoms increases. The dissociated structure of monoiodobenzene was investigated, and the dissociation barrier and the barrier between the short- and long-range states were compared.

Published
2016

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