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1. A neural network algorithm for quantifying seawater pH using Biogeochemical-Argo floats in the open Gulf of Mexico

Author

Emily Osborne, Yuan-Yuan Xu, Madison Soden, Jennifer McWhorter, Leticia Barbero, and Rik Wanninkhof

Subjects
Biogeochemical-Argo, neural network, pH, Gulf of Mexico, carbon cycling, Science, General. Including nature conservation, geographical distribution, QH1-199.5
Abstract

Within the Gulf of Mexico (GOM), measurements of ocean pH are limited across space and time. This has hindered our ability to robustly monitor and study regional carbon dynamics, inclusive of ocean acidification, over this biogeochemically variable sea. The 2021 launch of Biogeochemical-Argo (BGC-Argo) ocean profiling floats that carry five sensors represented the entry of this particular ocean observing technology into this region. The GOM BGC-Argo floats have vastly increased the number of oxygen, nitrate, pH, chlorophyll-a fluorescence, and particulate backscattering profile observations within the “open GOM” region (>1,000 m water column depth). To circumvent a set of uncertainties associated with the collected sensor pH data, regionally trained neural network algorithms were developed to skillfully predict GOM pH (total scale, in situ temperature and pressure), which served as a secondary QC and sensor performance assessment tool. The GOM neural network pH (GOM-NNpH) algorithms were trained using a selection of climate quality CTD and bottle data (temperature, salinity, oxygen, nitrate, pressure, and location) collected as a part of NOAA’s Gulf of Mexico Ecosystems and Carbon Cruises (GOMECC). Neural network pH estimates were generated using the newly developed GOMNNpH algorithm and two widely used, globally trained neural network algorithms (Empirical Seawater Property Estimation Routines (ESPER) and CArbonate system and Nutrients concentration from hYdrological properties and Oxygen using a Neural-network (CANYON-B)) to compare algorithm performance against validation data. The results demonstrate the advanced skill of the GOM-NNpH in capturing water column variability and robustly reconstructing GOM pH profiles. Using a combination of concurrent float-measured seawater values of pressure, temperature, salinity, and oxygen, a GOM-NNpH algorithm was applied to two years of BGC-Argo float data. Resulting data were used to diagnose the performance of float pH sensors and to generate a time series of neural network estimated pH based on the collected float profiles. These algorithms emphasize the value of regionally-trained neural networks and their utility by the BGC-Argo community. Further, the GOM-NNpH algorithms can also be applied by a variety of users to estimate pH values in the open GOM in the absence of direct pH observations.

Published
2024
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2. Tunable self-assembly of magnetotactic bacteria: Role of hydrodynamics and magnetism

Author

Christopher J. Pierce, Hiran Wijesinghe, Emily Osborne, Eric Mumper, Brian Lower, Steven Lower, and Ratnasingham Sooryakumar

Subjects
Physics, QC1-999
Abstract

Self-assembly is an important process in biological systems and also a promising avenue toward dynamic and responsive micro- and nano-technologies. This study discusses the non-equilibrium self-assembly of inherently magnetic bacteria oriented perpendicular to a solid surface. An interplay between hydrodynamic and magnetic interactions leads to stable three-dimensional clusters in the long-time regime, which may be programmatically assembled, disassembled, and translated across a surface. The implications of the findings for the rational design of non-equilibrium self-assembly in general are discussed.

Published
2020
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3. Grund gulls [ground of gold]: The Trope of Woman as 'Land' in Skaldic Poetry from the Tenth to Fourteenth Centuries

Author

Emily Osborne

Subjects
History of Northern Europe. Scandinavia, DL1-1180, Language and Literature
Abstract

ABSTRACT: Skaldic diction has long been noted for the many analogies it creates between the human body and the natural environment. One manifestation of this interchange occurs where women are referenced by kennings with base words denoting “land” or “earth,” as in the kenning grund gulls [ground of gold]. The idiosyncrasies of this type of woman-kenning have not before been studied, although a related metaphorical construction in which land is likened to a woman has been discussed. This article examines the linguistic taxonomies, metaphorical correlatives, and creative adaptations of this kenning-type “woman-as-land” within skaldic verse of the tenth to fourteenth centuries. The article also looks beyond kennings as lexical units, considering how imagery of women as “land” occurs in various forms of wordplay in skaldic verse and how these images are subsequently incorporated into the prosimetrical contexts of sagas.

Published
2014
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5. Ocean acidification in the Gulf of Mexico: Drivers, impacts, and unknowns

Author

Emily Osborne, Xinping Hu, Emily R. Hall, Kimberly Yates, Jennifer Vreeland-Dawson, Katie Shamberger, Leticia Barbero, J. Martin Hernandez-Ayon, Fabian A. Gomez, Tacey Hicks, Yuan-Yuan Xu, Melissa R. McCutcheon, Michael Acquafredda, Cecilia Chapa-Balcorta, Orion Norzagaray, Denis Pierrot, Alain Munoz-Caravaca, Kerri L. Dobson, Nancy Williams, Nancy Rabalais, and Padmanava Dash

Subjects
Geology, Aquatic Science
Published
2022
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6. Effects of antiplatelet therapy on stroke risk by brain imaging features of intracerebral haemorrhage and cerebral small vessel diseases: subgroup analyses of the RESTART randomised, open-label trial

Author

Rustam Al-Shahi Salman, David P Minks, Dipayan Mitra, Mark A Rodrigues, Priya Bhatnagar, Johann C du Plessis, Yogish Joshi, Martin S Dennis, Gordon D Murray, David E Newby, Peter A G Sandercock, Nikola Sprigg, Jacqueline Stephen, Cathie L M Sudlow, David J Werring, William N Whiteley, Joanna M Wardlaw, Philip M White, Colin Baigent, Daniel Lasserson, Frank Sullivan, Johanna Carrie, Javier Rojas, Shannon Amoils, John Bamford, Jane Armitage, Gabriel Rinkel, Gordon Lowe, Jonathan Emberson, Karen Innes, Lynn Dinsmore, Jonathan Drever, Carol Williams, David Perry, Connor McGill, David Buchanan, Allan Walker, Aidan Hutchison, Christopher Matthews, Ruth Fraser, Aileen McGrath, Ann Deary, Rosemary Anderson, Pauli Walker, Christian Hansen, Richard Parker, Aryelly Rodriguez, Malcolm Macleod, Thomas Gattringer, Jeb Palmer, Eleni Sakka, Jennifer Adil-Smith, David Minks, Johannes du Plessis, Christine Lerpiniere, Richard O'Brien, Seona Burgess, Gillian Mead, Ruth Paulton, Fergus Doubal, Katrina McCormick, Neil Hunter, Pat Taylor, Ruwan Parakramawansha, Jack Perry, Gordon Blair, Allan MacRaild, Adrian Parry-Jones, Mary Johnes, Stephanie Lee, Kelly Marie Shaw, Ilse Burger, Martin Punter, Andrea Ingham, Jane Perez, Zin Naing, Jordi Morell, Tracy Marsden, Andrea Hall, Sally Marshall, Louise Harrison, Rowilson Jarapa, Edith Wood, Victoria O'Loughlin, David Cohen, Silvie Davies, Kelechi Njoku, Mushiya Mpelembue, Laura Burgess, Radim Licenik, Mmua Ngwako, Nabeela Nisar, Rangah Niranchanan, Tatjana Roganova, Rajaram Bathula, Joseph Devine, Anette David, Anne Oshodi, Fenglin Guo, Emmanuelle Owoyele, Varthi Sukdeo, Robert Ballantine, Mudhar Abbdul-saheb, Angela Chamberlain, Aberami Chandrakumar, Philip Poku, Kirsty Harkness, Catrin Blank, Emma Richards, Ali Ali, Faith Kibutu, Olesia Balitska, Kathryn Birchall, Pauline Bayliss, Clare Doyle, Kathy Stocks, Arshad Majis, Jo Howe, Christine Kamara, Luke Barron, Ahmad Maatouk, Ralf Lindert, Katy Dakin, Jessica Redgrave, Biju Bhaskaran, Isam Salih, Debs Kelly, Susan Szabo, Dawn Tomlin, Helen Bearne, Jean Buxton, Pauline Fitzell, Georgina Ayres, Afaq Saulat, Kathleen Horan, Joanne Garfield-Smith, Harbens Bhakri, Paul Guyler, Devesh Sinha, Thayalini Loganathan, Amber Siddiqui, Anwer Siddiqui, Lucy Coward, Swapna Kunhunny, Sharon Tysoe, Rajalakshmi Orath Prabakaran, Shyam Kelavkar, Sindhu Rashmi, David Ngo, Kheng Xiong Ng, Nisha Menon, Sweni Shah, Mark Barber, Derek Esson, Fiona Brodie, Talat Anjum, Mushtaq Wani, Manju Krishnan, Leanne Quinn, Jayne Spencer, Terry Jones, Helen Thompson-Jones, Lynne Dacey, Srikanth Chenna, Sharon Storton, Sarah Thomas, Teresa Beaty, Shelley Treadwell, Caroline Davies, Susan Tucker, Lynda Connor, Peter Slade, Glyn Gainard, Girish Muddegowda, Ranjan Sanyal, Alda Remegoso, Nenette Abano, Chelsea Causley, Racquel Carpio, Stephanie Stevens, Adrian Butler, Resti Varquez, Hayley Denic, Francis Alipio, Andrew Moores, Adrian Barry, Holly Maguire, Jeanette Grocott, Kay Finney, Sue Lyjko, Christine Roffe, Joanne Hiden, Phillip Ferdinand, Vera Cvoro, Khalil Ullah, Nicola Chapman, Mandy Couser, Susan Pound, Sean Mcauley, Senthil Raghunathan, Faye Shelton, Amanda Hedstrom, Margi Godfrey, Diane Havard, Amanda Buck, Kailash Krishnan, Nicola Gilzeane, Jack Roffe, Judith Clarke, Katherine Whittamore, Saima Sheikh, Rekha Keshvara, Carla Jordan, Benjamin Jackson, Gwendoline Wilkes, Jason Appleton, Zhe Law, Oliver Matias, Evangelos Vasileiadis, Cathy Mason, Anthea Parry, Geraldine Landers, Melinda Holden, Basaam Aweid, Khalid Rashed, Linda Balian, Carinna Vickers, Elizabeth Keeling, Sarah Board, Joanna Allison, Clare Buckley, Barbara Williams-Yesson, Joanne Board, Tressy Pitt-Kerby, Alfonso Tanate, Diane Wood, Manohar Kini, Dinesh Chadha, Deborah Walstow, Rosanna Fong, Robert Luder, Tolu Adesina, Jill Gallagher, Hayley Bridger, Elodie Murali, Maneesh Bhargava, Chloe van Someren, Frances Harrington, Abhijit Mate, Ali James, Gillian Courtauld, Christine Schofield, Katja Adie, Linda Lucas, Kirsty Bond, Bev Maund, Sam Ellis, Paul Mudd, Martin James, Samantha Keenan, Angela Bowring, Julie Cageao, Hayley Kingwell, Caroline Roughan, Anthony Hemsley, Jane Sword, David Strain, Keniesha Miller, Anita Goff, Karin Gupwell, Kevin Thorpe, Hedley Emsley, Shuja Punekar, Alison McLoughlin, Sulaiman Sultan, Bindu Gregory, Sonia Raj, Donna Doyle, Keith Muir, Wilma Smith, Angela Welch, Fiona Moreton, Bharath Kumar Cheripelli, Salwa El Tawil, Dheeraj Kalladka, Xuya Huang, Nicola Day, Sankaranarayanan Ramachandran, Caroline Crosbie, Jennifer Elliot, Tony Rudd, Katherine Marks, Ajay Bhalla, Jonathan Birns, Sagal Kullane, Nic Weir, Christopher Allen, Vanessa Pressly, Pam Crawford, Emma Battersby-Wood, Alex Blades, Shuna Egerton, Ashleigh Walters, Sue Evans, James Richard Marigold, Fiona Smith, Gabriella Howard, Imogen Gartrell, Simon Smith, Robyn Creeden, Chloe Cox, Cherish Boxall, Jonathan Hewitt, Claire Nott, Procter Sarah, Jessica Whiteman, Steve Buckle, Rebecca Wallace, Rina Mardania, Jane Gray, Claire Triscott, Anand Nair, Jill Greig, Pratap Rana, Matthew Robinson, Mohammad Irfan Alam, David Werring, Duncan Wilson, Caroline Watchurst, Maria Brezitski, Luci Crook, Ifan Jones, Azra Banaras, Krishna Patel, Renuka Erande, Caroline Hogan, Isabel Hostettler, Amy Ashton, Shez Feerick, Nina Francia, Nnebuife Oji, Emma Elliott, Talal Al-Mayhani, Martin Dennis, Cathie Sudlow, William Whiteley, Dipankar Dutta, Pauline Brown, Deborah Ward, Fiona Davis, Jennifer Turfrey, Chloe Hughes, Kayleigh Collins, Rehana Bakawala, Susan O'Connell, Jon Glass, David Broughton, Dinesh Tryambake, Lynn Dixon, Kath Chapman, Andrew Young, Adrian Bergin, Andrew Sigsworth, Aravind Manoj, Glyn Fletcher, Paula Lopez, Penelope Cox, Mark Wilkinson, Paul Fitzsimmons, Nikhil Sharma, James Choulerton, Denise Button, Lindsey Dow, Lukuman Gbadamoshi, Joanne Avis, Barbara Madigan, Stephanie McCann, Louise Shaw, Deborah Howcroft, Suzanne Lucas, Andrew Stone, Gillian Cluckie, Caroline Lovelock, Brian Clarke, Neha Chopra, Natasha Clarke, Bhavini Patel, Kate Kennedy, Rebecca Williams, Adrian Blight, Joanna O'Reilly, Chukwuka Orefo, Nilofer Dayal, Rita Ghatala, Temi Adedoyin, Fran Watson, Sarah Trippier, Lillian Choy, Barry Moynihan, Usman Khan, Val Jones, Naomi Jeyaraj, Lourda Kerin, Kamy Thavanesan, Divya Tiwari, Chantel Cox, Anja Ljubez, Laura Tucker, Arshi Iqbal, Caroline Bagnall, Marketa Keltos, Josh Roberts, Becky Jupp, Catherine Ovington, Emily Rogers, Owen David, Jo Bell, Barbara Longland, Gail Hann, Martin Cooper, Mohammad Nasar, Anoja Rajapakse, Inez Wynter, Ijaz Anwar, Helen Skinner, Tarn Nozedar, Damian McArdle, Balakrishna Kumar, Susan Crawford, Arunkumar Annamalai, Alex Ramshaw, Clare Holmes, Sarah Caine, Mairead Osborn, Emily Dodd, Peter Murphy, Nicola Devitt, Pauline Baker, Amy Steele, Lucy Belle Guthrie, Samantha Clarke, Ahamad Hassan, Dean Waugh, Emelda Veraque, Linetty Makawa, Mary Kambafwile, Marc Randall, Vasileios Papavasileiou, Claire Cullen, Jenny Peters, Hlaing Thant, Tanya Ingram, Mellor Zoe, Ramesh Durairaj, Melanie Harrison, Sarah Stevenson, Daniela Shackcloth, Jordan Ewing, Victoria Sutton, Mark McCarron, Jacqueline McKee, Mandy Doherty, Ferghal McVerry, Caroline Blair, Mary MacLeod, Janice Irvine, Heather Gow, Jacqueline Furnace, Anu Joyson, Baljit Jagpal, Sarah Ross, Katrina Klaasen, Sandra Nelson, Rebecca Clarke, Nichola Crouch, Beverly MacLennan, Vicky Taylor, Daniel Epstein, Avani Shukla, Vinodh Krishnamurthy, Paul Nicholas, Sammie Qureshi, Adam Webber, Justin Penge, Hawraman Ramadan, Stuart Maguire, Chris Patterson, Ruth Bellfield, Brigid Hairsine, Kelvin Stewart, Michaela Hooley, Outi Quinn, Bella Richard, Sally Moseley, Mandy Edwards, Heidi Lawson, Michelle Tayler, Yogish Pai, Mahesh Dhakal, Bernard Esisi, Sofia Dima, Gemma Marie Smith, Mark Garside, Muhammad Naeem, Vidya Baliga, Gill Rogers, Ellen Brown, David Bruce, Rachel Hayman, Susan Clayton, Ed Gamble, Rebecca Grue, Bethan Charles, Adam Hague, Sujata Blane, Caroline Lambert, Afnan Chaudhry, Thomas Harrison, Kari Saastamoinen, Dionne Hove, Laura Howaniec, Gemma Grimwood, Ozlem Redjep, Fiona Humphries, Lucia Argandona, Larissa Cuenoud, Esther Erumere, Sageet Amlani, Grace Auld, Afraim Salek-Haddadi, Ursula Schulz, James Kennedy, Gary Ford, Philip Mathieson, Ian Reckless, Rachel Teal, Giulia Lenti, George Harston, Eoin O'Brien, Joanne Mcgee, Jennifer Mitchell, Elaine Amis, Dominic Handley, Siobhan Kelly, George Zachariah, Jobbin Francis, Sarah Crisp, Juliana Sesay, Sarah Finlay, Helen Hayhoe, Niamh Hannon, Tom Hughes, Bethan Morse, Henry De Berker, Emma Tallantyre, Ahmed Osman, Susan White, Stefan Schwarz, Benjamin Jelley, Rajendra Yadava, Khalid Azhar, Julie Reddan, Mirriam Sangombe, Samantha Stafford, Ken Fotherby, Debbie Morgan, Farrukh Baig, Karla Jennings-Preece, Donna Butler, Nasar Ahmad, Angela Willberry, Angela Stevens, Baljinder Rai, Prasad Siddegowda, Peter Howard, Lisa Hyatt, Tracey Dobson, David Jarrett, Suheil Ponnambath, Jane Tandy, Yasmin Harrington-Davies, Rebecca Butler, Claire James, Stacey Valentine, Anne Suttling, Peter Langhorne, Gillian Kerr, Fiona Wright, Ruth Graham, Christine McAlpine, Mohammad Shahzad Iqbal, Louise Humphreys, Kath Pasco, Olga Balazikova, Ashraf Nasim, Cassilda Peixoto, Louise Gallagher, Shahrzad Shahmehri, Sandip Ghosh, Elizabeth Barrie, Danielle Gilmour, Margo Henry, Tom Webb, Linda Cowie, Hannah Rudenko, Shanni McDonald, Natasha Schumacher, Susannah Walker, Tracey Cosier, Anna Verrion, Eva Beranova, Audrey Thomson, Marius Venter, Arindam Kar, Sheila Mashate, Kirsten Harvey, Léjeune Gardener, Vinh Nguyen, Omid Halse, Olivia Geraghty, Beth Hazel, Peter Wilding, Victoria Tilley, Tim Cassidy, Beverley McClelland, Maria Bokhari, Timothy England, Mohana Maddula, Richard Donnelly, Paul Findlay, Ashish Macaden, Ian Shread, Charlotte Barr, Azlisham Mohd Nor, Claire Brown, Nicola Persad, Charlotte Eglinton, Marie Weinling, Benjamin Hyams, Alex Shah, John Baker, Anthony Byrne, Caroline McGhee, Amanda Smart, Claire Copeland, Michael Carpenter, Marion Walker, Richard Davey, Ann Needle, Razik Fathima, Gavin Bateman, Prabal Datta, Andrew Stanners, Linda Jackson, Julie Ball, Michelle Davis, Natalie Atkinson, Michelle Fawcett, Teresa Thompson, Helen Guy, Valerie Hogg, Carole Hays, Stephen Woodward, Mohammad Haque, Eluzai Hakim, Stuart Symonds, Mehran Maanoosi, Jane Herman, Toby Black, Skelton Miriam, Caroline Clarke, Alpha Anthony, Michele Tribbeck, Julie Cronin, Denise Mead, Ruth Fennelly, James McIlmoyle, Christina Dickinson, Carol Jeffs, Sajjad Anwar, Joanne Howard, Kirsty Jones, Saikat Dhar, Caroline Clay, Muhammad Siddiq, Simone Ivatts, Yolanda Baird, Moore Sally, Isobel Amey, Sophie Newton, Lisa Clayton-Evans, Indra Chadbourn, Rayessa Rayessa, Charde Naylor, Alicia Rodgers, Lisa Wilson, Sarah Wilson, Emma Clarkson, Ruth Davies, Paula Owings, Graeme Sangster, Valerie Gott, Victoria Little, Pauline Weir, Suja Cherian, Deepa Jose, Helen Moroney, Susan Downham, Angela Dodd, Venetia Vettimootal Johnson, Laura Codd, Naomi Robinson, Ashraf Ahmed, Mo Albazzaz, Sharon Johnson, Carol Denniss, Mishell Cunningham, Tajammal Zahoor, Timothy Webster, Sandra Leason, Syed Haider, Kausic Chatterjee, Arumugam Nallasivan, Charlotte Perkins, Samantha Seagrave, Colin Jenkins, Fiona Price, Claire Hughes, Lily Mercer, Malik Hussain, Sarah Brown, Miriam Harvey, Jane Homan, Mohammad Khan, Robert Whiting, Leanne Foote, Nicholas Hunt, Helen Durman, Lucy Brotherton, Jayne Foot, Corinne Pawley, Eliza Foster, Alison Whitcher, Kneale Metcalf, Jenny Jagger, Susan McDonald, Kelly Waterfield, Patrick Sutton, Naval Shinh, Ajmal Anversha, Garth Ravenhill, Richard Greenwood, Janak Saada, Alison Wiltshire, Rebekah Perfitt, Sreeman Andole, Naveen Gadapa, Karen Dunne, Magdalini Krommyda, Evelyne Burssens, Sam King, Catherine Plewa, Nigel Smyth, Jenny Wilson, Elio Giallombardo, Lucy Sykes, Pradeep Kumar, James Barker, Isabel Huggett, Linda Dunn, Charlotte Culmsee, Philip Thomas, Min Myint, Helen Brew, Nikhil Majmudar, Janice OConnell, George Bunea, Charlotte Fox, Diane Gulliver, Andrew Smith, Betty Mokoena, Naweed Sattar, Ramesh Krishnamurthy, Emily Osborne, David Wilson, Belinda Wroath, Kevin Dynan, Michael Power, Susan Thompson, Victoria Adell, Enoch Orugun, Una Poultney, Rachel Glover, Hannah Crowther, Sarah Thornthwaite, Ivan Wiggam, Aine Wallace, Enda Kerr, Ailsa Fulton, Annemarie Hunter, Suzanne Tauro, Sarah Cuddy, David Mangion, Anne Hardwick, Skarlet Markova, Tara Lawrence, Carmen Constantin, Jo Fletcher, Isobel Thomas, Kerry Pettitt, Lakshmanan Sekaran, Margaret Tate, Kiranjit Bharaj, Rohan Simon, Frances Justin, Sakthivel Sethuraman, Duke Phiri, Niaz Mohammed, Meena Chauhan, Khaled Elfandi, Uzma Khan, David Eveson, Amit Mistri, Lisa Manning, Shagufta Khan, Champa Patel, Mohammed Moqsith, Saira Sattar, Man Yee Lam, Kashif Musarrat, Claire Stephens, Latheef Kalathil, Richard Miller, Maqsud Salehin, Nikki Gautam, Duncan Bailey, Kelly Amor, Julie Meir, Anne Nicolson, Javed Imam, Lisa Wood, Julie White, Mahmud Sajid, George Ghaly, Margaret Ball, Rachel Gascoyne, Harald Proeschel, Simon Sharpe, Sarah Horton, Emily Beaves, Stephanie Jones, Brigitte Yip, Murdina Bell, Linda MacLiver, Brian MacInnes, Don Sims, Jennifer Hurley, Mark Willmot, Claire Sutton, Edward Littleton, Susan Maiden, Rachael Jones, James Cunningham, Carole Green, Michelle Bates, Raj Shekhar, Ellie Gilham, Iman Ahmed, Rachel Crown, Tracy Fuller, Neetish Goorah, Angela Bell, Christine Kelly, Arun Singh, Jamie Walford, Benjamin Tomlinson, Farzana Patel, Stephen Duberley, Ingrid Kane, Chakravarthi Rajkumar, Jane Gaylard, Joanna Breeds, Nicola Gainsborough, Alexandra Pitt-Ford, Emma Barbon, Laura Latter, Philip Thompson, Simon Hervey, Shrivakumar Krishnamoorthy, Joseph Vassallo, Deborah Walter, Helen Cochrane, Meena Srinivasan, Robert Campbell, Denise Donaldson, Nichola Motherwell, Frances Hurford, Indranil Mukherjee, Antony Kenton, Sheila Nyabadza, Irene Martin, Benjamin Hunt, Hardi Hassan, Sarah O'Toole, Bander Dallol, Janet Putterill, Ratneshwari Jha, Rachel Gallifent, Puneet Kakar, Aparna Pusalkar, kelly Chan, Puneet Dangri, Hannah Beadle, Angela Cook, Karen Crabtree, Santhosh Subramonian, Peter Owusu-Agyei, Natalie Temple, Nicola Butterworth-Cowin, Suzanne Ragab, Kerstin Knops, Emma Jinks, Christine Dickson, Laura Gleave, Judith Dube, Jacqui Leggett, Tatiana Garcia, Sissy Ispoglou, Rachel Evans, Sandeep Ankolekar, Anne Hayes, Hlaing Ni, Bithi Rahman, Josette Milligan, Carol Graham, Josin Jose, Breffni Keegan, Jim Kelly, Richard Dewar, James White, Kelly Thomas, Rajkumar, C, University of St Andrews. School of Medicine, University of St Andrews. Sir James Mackenzie Institute for Early Diagnosis, University of St Andrews. Population and Behavioural Science Division, University of St Andrews. Pure Mathematics, University of St Andrews. School of Psychology and Neuroscience, and University of St Andrews. School of Biology

Subjects
Male, MICROBLEEDS, 030204 cardiovascular system & hematology, AMYLOID ANGIOPATHY, Brain Ischemia, law.invention, 0302 clinical medicine, Randomized controlled trial, law, Secondary Prevention, ACUTE ISCHEMIC-STROKE, Aged, 80 and over, Aspirin, Manchester Cancer Research Centre, medicine.diagnostic_test, Hazard ratio, Brain, Magnetic Resonance Imaging, Superficial siderosis, Cerebral Small Vessel Diseases, Stroke, Treatment Outcome, Female, medicine.drug, CT, medicine.medical_specialty, ANTITHROMBOTIC THERAPY, Clinical Neurology, Neuroimaging, Subgroup analysis, 03 medical and health sciences, Internal medicine, medicine, Journal Article, Humans, Aged, Cerebral Hemorrhage, business.industry, ResearchInstitutes_Networks_Beacons/mcrc, DAS, Magnetic resonance imaging, medicine.disease, SIGNS, ASPIRIN, Neurology (clinical), Tomography, X-Ray Computed, business, SUPERFICIAL SIDEROSIS, Platelet Aggregation Inhibitors, 030217 neurology & neurosurgery
Abstract

Background: Findings from the RESTART trial suggest that starting antiplatelet therapy might reduce the risk of recurrent symptomatic intracerebral haemorrhage compared with avoiding antiplatelet therapy. Brain imaging features of intracerebral haemorrhage and cerebral small vessel diseases (such as cerebral microbleeds) are associated with greater risks of recurrent intracerebral haemorrhage. We did subgroup analyses of the RESTART trial to explore whether these brain imaging features modify the effects of antiplatelet therapy.Methods: RESTART was a prospective, randomised, open-label, blinded-endpoint, parallel-group trial at 122 hospitals in the UK that assessed whether starting antiplatelet therapy might reduce the risk of recurrent symptomatic intracerebral haemorrhage compared with avoiding antiplatelet therapy. For this prespecified subgroup analysis, consultant neuroradiologists masked to treatment allocation reviewed brain CT or MRI scans performed before randomisation to confirm participant eligibility and rate features of the intracerebral haemorrhage and surrounding brain. We followed participants for primary (recurrent symptomatic intracerebral haemorrhage) and secondary (ischaemic stroke) outcomes for up to 5 years (reported elsewhere). For this report, we analysed eligible participants with intracerebral haemorrhage according to their treatment allocation in primary subgroup analyses of cerebral microbleeds on MRI and in exploratory subgroup analyses of other features on CT or MRI. The trial is registered with the ISRCTN registry, number ISRCTN71907627.Findings: Between May 22, 2013, and May 31, 2018, 537 participants were enrolled, of whom 525 (98%) had intracerebral haemorrhage: 507 (97%) were diagnosed on CT (252 assigned to start antiplatelet therapy and 255 assigned to avoid antiplatelet therapy, of whom one withdrew and was not analysed) and 254 (48%) underwent the required brain MRI protocol (122 in the start antiplatelet therapy group and 132 in the avoid antiplatelet therapy group). There were no clinically or statistically significant hazards of antiplatelet therapy on recurrent intracerebral haemorrhage in primary subgroup analyses of cerebral microbleed presence (2 or more) versus absence (0 or 1) (adjusted hazard ratio [HR] 0·30 [95% CI 0·08–1·13] vs 0·77 [0·13–4·61]; pinteraction=0·41), cerebral microbleed number 0–1 versus 2–4 versus 5 or more (HR 0·77 [0·13–4·62] vs 0·32 [0·03–3·66] vs 0·33 [0·07–1·60]; pinteraction=0·75), or cerebral microbleed strictly lobar versus other location (HR 0·52 [0·004–6·79] vs 0·37 [0·09–1·28]; pinteraction=0·85). There was no evidence of heterogeneity in the effects of antiplatelet therapy in any exploratory subgroup analyses (all pinteraction>0·05).Interpretation: Our findings exclude all but a very modest harmful effect of antiplatelet therapy on recurrent intracerebral haemorrhage in the presence of cerebral microbleeds. Further randomised trials are needed to replicate these findings and investigate them with greater precision.Funding: British Heart Foundation.

Published
2019
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7. Thrust and Power Output of the Bacterial Flagellar Motor: A Micromagnetic Tweezers Approach

Author

Eric Mumper, Steven K. Lower, Christopher Pierce, Emily Osborne, Brian H. Lower, and Ratnasingham Sooryakumar

Subjects
Physics, 0303 health sciences, Rotation, Work (physics), Biophysics, Thrust, Mechanics, Articles, Bacterial Physiological Phenomena, Exponential function, Biomechanical Phenomena, 03 medical and health sciences, 0302 clinical medicine, Magnetic Fields, Flagella, Tweezers, Molecular motor, Hydrodynamics, Hydrodynamic resistance, Power output, Extended time, Single-Cell Analysis, 030217 neurology & neurosurgery, 030304 developmental biology, Mechanical Phenomena
Abstract

One of the most common swimming strategies employed by microorganisms is based on the use of rotating helical filaments, called flagella, that are powered by molecular motors. Determining the physical properties of this propulsive system is crucial to understanding the behavior of these organisms. Furthermore, the ability to dynamically monitor the activity of the flagellar motor is a valuable indicator of the overall energetics of the cell. In this work, inherently magnetic bacteria confined in micromagnetic CoFe traps are used to directly and noninvasively determine the flagellar thrust force and swimming speed of motile cells. The technique permits determination of the ratio of propulsive force/swimming speed (the hydrodynamic resistance) and the power output of the flagellar motor for individual cells over extended time periods. Cells subjected to ultraviolet radiation are observed to experience exponential decays in power output as a function of exposure time. By noninvasively measuring thrust, velocity, and power output over time at a single-cell level, this technique can serve as the foundation for fundamental studies of bacterial hydrodynamics and also provides a novel, to our knowledge, tether-free probe of single-cell energetics over time.

Published
2019

8. Effects of fluoxetine on functional outcomes after acute stroke (FOCUS) : a pragmatic, double-blind, randomised, controlled trial

Author

Martin Dennis, Gillian Mead, John Forbes, Catriona Graham, Maree Hackett, Graeme J Hankey, Allan House, Stephanie Lewis, Erik Lundström, Peter Sandercock, Karen Innes, Carol Williams, Jonathan Drever, Aileen Mcgrath, Ann Deary, Ruth Fraser, Rosemary Anderson, Pauli Walker, David Perry, Connor Mcgill, David Buchanan, Yvonne Chun, Lynn Dinsmore, Emma Maschauer, Amanda Barugh, Shadia Mikhail, Gordon Blair, Ingrid Hoeritzauer, Maggie Scott, Greig Fraser, Katherine Lawrence, Alison Shaw, Judith Williamson, David Burgess, Malcolm Macleod, Dan Morales, Frank Sullivan, Marian Brady, Ray French, Frederike Van Wijck, Caroline Watkins, Fiona Proudfoot, Joanna Skwarski, Diane Mcgowan, Rachael Murphy, Seona Burgess, William Rutherford, Katrina Mccormick, Ruaridh Buchan, Allan Macraild, Ruth Paulton, Adnan Fazal, Pat Taylor, Ruwan Parakramawansha, Neil Hunter, Jack Perry, John Bamford, Dean Waugh, Emelda Veraque, Caroline Bedford, Mary Kambafwile, Luis Idrovo, Linetty Makawa, Paula Smalley, Marc Randall, Tharani Thirugnana-Chandran, Ahamad Hassan, Richard Vowden, Joanne Jackson, Ajay Bhalla, Anthony Rudd, Chi Kai Tam, Jonathan Birns, Charlotte Gibbs, Leonie Lee Carbon, Elizabeth Cattermole, Katherine Marks, Angela Cape, Lisa Hurley, Sagal Kullane, Nigel Smyth, Charlotte Eglinton, Jennifer Wilson, Elio Giallombardo, Angela Frith, Paul Reidy, Matthew Pitt, Lucy Sykes, Deborah Dellafera, Victoria Croome, Lauriane Kerwood, Mirea Hancevic, Christina Narh, Carley Merritt, John Duffy, Duncan Cooke, Juliet Willson, Ali Ali, Aaizza Naqvi, Christine Kamara, Helen Bowler, Simon Bell, Tracy Jackson, Kirsty Harkness, Kathy Stocks, Suzanna Duty, Clare Doyle, Geoffrey Dunn, Keith Endean, Fiona Claydon, Emma Richards, Jo Howe, Ralf Lindert, Arshad Majid, Katy Dakin, Ahmad Maatouk, Luke Barron, Madana Meegada, Pratap Rana, Anand Nair, Christine Brighouse-Johnson, Jill Greig, Myint Kyu, Sanjeev Prasad, Matthew Robinson, Irfan Alam, Belinda Mclean, Lindsay Greenhalgh, Zenab Ahmed, Christine Roffe, Susan Brammer, Carole Beardmore, Kay Finney, Adrian Barry, Paul Hollinshead, Jeanette Grocott, Holly Maguire, Indira Natarajan, Jayan Chembala, Ranjan Sanyal, Sue Lijko, Nenette Abano, Alda Remegoso, Phillip Ferdinand, Stephanie Stevens, Resti Varquez, Chelsea Causley, Adrian Butler, Philip Whitmore, Caroline Stephen, Racquel Carpio, Joanne Hiden, Girish Muddegowda, Hayley Denic, Jane Sword, Ross Curwen, Martin James, Paul Mudd, Fiona Hall, Julie Cageao, Samantha Keenan, Caroline Roughan, Hayley Kingwell, Anthony Hemsley, Christoph Lohan, Sue Davenport, Angela Bowring, Tamika Chapter, Max Hough, David Strain, Karin Gupwell, Keniesha Miller, Anita Goff, Ellie Cusack, Shirley Todd, Rebecca Partridge, Georgiana Jennings, Kevin Thorpe, Jacquelyn Stephenson, Kelly Littlewood, Mark Barber, Fiona Brodie, Steven Marshall, Derek Esson, Irene Coburn, Caroline Mcinnes, Fiona Ross, Emma Bowie, Heather Barcroft, Victoria Withers, Laura Miller, Paul Willcoxson, Michelle Donninson, Richard Evans, Di Daniel, John Coyle, Michael Keeling, Peter Wanklyn, Mark Elliott, John Wightman, Elizabeth Iveson, Natasha Dyer, Anne-Marie Porteous, Monica Haritakis, Mandy Ward, Lucy Doughty, Lisa Carr, Mark O Neill, Cosmas Anazodo, Paul Wood, Poppy Cottrell, Cheryl Donne, Romina Rodriguez, Ruhail Mir, Jax Westmoreland, Judith Bell, Christopher Emms, Lorraine Wright, Pearl Clark Brown, Elizabeth Bamford, Andrew Stanners, Mike Carpenter, Prabal Datta, Richard Davey, Ann Needle, Marjorie Jane Eastwood, Fathima Zeena Razik, Imran Ghouri, Gavin Bateman, Judy Archer, Venkatesh Balasubramanian, Richard Bowers, Julie Ball, Louise Benton, Linda Jackson, Julie Ellam, Kate Norton, Paul Guyler, Terry Dowling, Sharon Tysoe, Paula Harman, Ashish Kundu, Ololade Omodunbi, Thayalini Loganathan, Stuart Chandler, Shanas Noor, Anwer Siddiqui, Amber Siddiqui, Swapna Kunhunny, Devesh Sinha, Martin Sheppard, Sindhu Rashmi, Elena France, Rajalakshmi Orath Prabakaran, Laura Wilson, Amiirah Ropun, Shyam Kelavkar, Kheng Xiong Ng, Lucy Kamuriwo, Sweni Shah, David Mangion, Camen Constantin, Luigi De Michele Hock, Anne Hardwick, Jayne Borley, Skarlet Markova, Kimberley Netherton, Tara Lawrence, Jo Fletcher, Rebecca Spencer, Helen Palmer, Claire Cullen, Dolores Hamill, Ramesh Durairaj, Zoe Mellor, Tanya Fluskey, Diane Wood, Alison Keeling, Victoria Hankin, Jennifer Peters, Daniela Shackcloth, Thant Hlaing, Rebecca Tangney, Jordan Ewing, Melanie Harrison, Sarah Stevenson, Victoria Sutton, Mohamed Soliman, Julia Hindle, Elizabeth Watson, Claire Hewitt, Susie Butler, Ibrahim Wahishi, Sarwat Arif, Amy Fields, Jagdish Sharma, Rose Brown, Caroline Taylor, Sarah Bell, Simon Leach, Chris Patterson, Sophia Khan, Helen Wilson, Joanne Price, Hawraman Ramadan, Stuart Maguire, Ruth Bellfield, Michaela Hooley, Umair Hamid, Waqar Gaba, Robina Ghulam, Leslie Masters, Outi Quinn, Lakshmanan Sekaran, Margaret Tate, Niaz Mohammed, Kiranjit Bharaj, Frances Justin, Rajan Pattni, Lanka Alwis, Sakthivel Sethuraman, Rianne Robinson, Lianne Eldridge, Susan Mintias, Meena Chauhan, Chi-Kai Tam, Jeremias Palmones, Clare Holmes, Lucy Belle Guthrie, Mairead Osborn, Lindsay Ball, Sarah Caine, Amy Steele, Peter Murphy, Nikki Devitt, Jayne Leonard, Ronak Patel, Ian Penwarden, Emily Dodd, Amy Holloway, Pauline Baker, Samantha Clarke, Sandra Williams, Lindsey Dow, Roland Wynn-Williams, James Kennedy, Rachel Teal, Ursula Schulz, Gary Ford, Philip Mathieson, Ian Reckless, Ana Deveciana, Paige Mccann, Gillian Cluckie, Geoffrey Howell, Jonathan Ayer, Barry Moynihan, Rita Ghatala, Brian Clarke, Geoffrey Cloud, Bhavini Patel, Usman Khan, Nia Al-Samarrai, Sarah Trippier, Neha Chopra, Temi Adedoyin, Fran Watson, Val Jones, Liqun Zhang, Lillian Choy, Rebecca Williams, Natasha Clarke, Adrian Blight, Kate Kennedy, Alice Dainty, Johann Selvarajah, Dheeraj Kalladka, Bharath Cheripelli, Wilma Smith, Fiona Moreton, Angela Welch, Xuya Huang, Elizabeth Douglas, Audrey Lush, Nicola Day, Salwa El Tawil, Karen Montgomery, Helen Hamilton, Doreen Ritchie, Sankaranarayanan Ramachandra, Kirsty Mcleish, Kamy Thavanesan, Sathyabama Loganathan, Josh Roberts, Chantel Cox, Sarah Orr, Alison Hogan, Divya Tiwari, Gail Hann, Barbara Longland, Owen David, Jo Bell, Catherine Ovington, Emily Rogers, Rachel Bower, Marketa Keltos, David Cohen, Joseph Devine, Lankantha Alwis, Lucy Southworth, Laura Burgess, Matilda Lang, Bhavna Badiani, Fenglin Guo, Anne Oshodi, Emmanuelle Owoyele, Norah Epie, Anette David, Mushiya Mpelembue, Rajaram Bathula, Mudhar Abdul-Saheb, Angela Chamberlain, Varthi Sudkeo, Khalid Rashed, Barbara Williams-Yesson, Joanne Board, Sarah De Bruijn, Clare Buckley, Sarah Board, Joanna Allison, Elizabeth Keeling, Tracey Duckett, Dave Donaldson, Carinna Vickers, Claire Barron, Linda Balian, Jodhi Wilson, Adam Edwards, Timothy England, Amanda Hedstrom, Elizabeth Bedford, Margaret Harper, Elina Melikyan, Wendy Abbott, Kashmira Subramanian, Marie Goldsworthy, Meena Srinivasan, Angela Yeomans, Denise Donaldson, Frances Hurford, Riquella Chapman, Sana Shahzad, Nicki Motherwell, Louise Tonks, Rachel Young, Usman Ghani, Indranil Mukherjee, Dipankar Dutta, Mudhar Obaid, Pauline Brown, Fiona Davis, Deborah Ward, Jennifer Turfrey, Bethan Cartwright, Bilal Topia, Judith Spurway, Kayleigh Collins, Rehana Bakawala, Chloe Hughes, Susan Oconnell, Linda Hill, Kausik Chatterjee, Tim Webster, Syed Haider, Pamela Rushworth, Fiona Macleod, Arumugam Nallasivan, Charlotte Perkins, Edel Burns, Sandra Leason, Tom Carter, Samantha Seagrave, Eman Sami, Lisa Armstrong, Syed Naseem Naqvi, Muhammad Hassan, Sharron Parkinson, Samantha Mawer, Gillian Darnbrook, Carl Booth, Brigid Hairsine, Matthew Smith, Sue Williamson, Fiona Farquhar, Bernard Esisi, Tim Cassidy, Gavin Mankin, Beverley Mcclelland, Maria Bokhari, David Sproates, Elliot Epstein, Steve Hurdowar, Ruth Blackburn, Nazran Sukhdeep, Saika Razak, Khalid Osman, Amina Hashmi, Natasha Upton, Frances Harrington, Gillian Courtauld, Christine Schofield, Linda Lucas, Katja Adie, Kirsty Bond, Abhijit Mate, Jo Skewes, Ali James, Carolyn Brodie, Matthew Johnson, Linda Allsop, Emma Driver, Karina Harris, Mark Drake, Sam Ellis, Bev Maund, Emma Thomas, Kimberley Moore, Matthew Burn, Adam Hamilton, Shageetha Mahalingam, Amulya Misra, Farrah Reid, Adrienne Benford, Derek Hilton, Lorraine Hazell, Keziah Ofori, Anne Louise Thomas, Moncy Mathew, Sonia Dayal, Iona Burn, Kenneth Fotherby, Karla Jennings-Preece, Angela Willberry, Debbie Morgan, Donna Butler, Gurminder Sahota, Kelly Kauldhar, Nasar Ahmad, Angela Stevens, Saugata Das, David Bruce, Yogish Pai, Khin Nyo, Lynsey Stephenson, Richard Nendick, Gill Rogers, Mahesh Dhakal, Sofia Dima, Ellen Brown, Susan Clayton, Penny Gamble, Muhammad Naeem, Rachel Hayman, Rachel Burnip, Philip Earnshaw, David Hargroves, Barbara Ransom, Hannah Rudenko, Ibrahim Balogun, Kirsty Griffiths, Kim Mears, Tom Webb, Linda Cowie, Tessa Hammond, Audrey Thomson, Daniela Ceccarelli, Navraj Chattha, Eva Beranova, Anna Verrion, Andrew Gillian, Natasha Schumacher, Anna Bahk, Susannah Walker, Vera Cvoro, Nicola Chapman, Susan Pound, Rebecca Cain, Sean Mcauley, Mandy Couser, Maria Simpson, Athan Tachtatzis, Khalil Ullah, Don Sims, Rachael Jones, Jonathan Smith, Rebecca Tongue, Mark Willmot, Claire Sutton, Edward Littleton, Jattinder Khaira, Susan Maiden, James Cunningham, Carole Green, Yin-May Chin, Michelle Bates, Katherine Ahlquist, Ingrid Kane, Joanna Breeds, Tenesa Sargent, Laura Latter, Alexandra Pitt Ford, Nicola Gainsborough, Tom Levett, Philip Thompson, Emma Barbon, Angela Dunne, Simon Hervey, Suzanne Ragab, Tracy Sandell, Christine Dickson, Judith Dube, Sharon Power, Nick Evans, Beverley Wadams, Savina Elitova, Beth Aubrey, Tatiana Garcia, James Mcilmoyle, Carol Jeffs, Christina Dickinson, Anis Ahmed, Sanjeev Kumar, Julie Frudd, Charlotte Armer, Andrew Potter, Stacey Donaldson, Joanne Howard, Kirsty Jones, Saikat Dhar, David Collas, Saul Sundayi, Lynn Denham, Deepali Oza, Elaine Walker, Mohit Bhandari, Sissy Ispoglou, Rachel Evans, Kamel Sharobeem, Elaine Walton, Steven Shanu, Anne Hayes, Jennifer Howard-Brown, Steven Billingham, Nic Weir, Vanessa Pressly, Emma Wood, Gabriella Howard, Holly Burton, Pam Crawford, Shuna Egerton, Sue Evans, Jasmine Hakkak, Janet Andrews, Rebecca Lampard, Christopher Allen, Ashleigh Walters, Rasha Said, James Richard Marigold, Sau-Mon Tsang, Robyn Creeden, Chloe Cox, Simon Smith, Imogen Gartrell, Fiona Smith, Colin Jenkins, Joanna Pryor, Andrew Hedges, Fiona Price, Linda Moseley, Lily Mercer, Claire Hughes, Abul Azim, Julie White, Milena Krasinska-Chavez, Shaun Chaplin, James Curtis, Deepwant Singh, Javed Imam, Anne Nicolson, Sajid Alam, Simon Whitworth, Lisa Wood, Elizabeth Warburton, Siobhan Kelly, Joanne Mcgee, Hugh Markus, Denish Chandrasena, Derek Hayden, Juliana Sesay, Helen Hayhoe, Mark Bolton, Jane Macdonald, Jenny Mitchell, Charlotte Farron, Elaine Amis, Diana Day, Ainsley Culbert, Ailene Espanol, Niamh Hannon, Dominic Handley, Sarah Finlay, Sarah Crisp, Lynne Whitehead, Jobbin Francis, Janice Oconnell, Emily Osborne, Rod Beard, Ramesh Krishnamurthy, Langanani Mokoena, Naweed Sattar, Min Myint, Michelle Edwards, Andrew Smith, Paul Corrigan, Anthony Byrne, Joanne Blackburn, Caroline Mcghee, Amanda Smart, Fiona Donaldson, Claire Copeland, Jill Wilson, Rhona Scott, Paul Fitzsimmons, Paula Lopez, Mark Wilkinson, Aravindakshan Manoj, Penelope Cox, Leona Trainor, Glyn Fletcher, Lisa Denny, Karen Kavanagh, Hannah Allsop, Hedley Emsley, Sulaiman Sultan, Alison Mcloughlin, Benjamin Walmsley, Louise Hough, Shakeel Ahmed, Donna Doyle, Bindu Gregary, Sonia Raj, Kirubananthan Nagaratnam, Neelima Mannava, Nyla Haque, Norma Shields, Kate Preston, Geraldine Mason, Kirsty Short, Gemma Lumsdale, Giulia Uitenbosch, Ugnius Sukys, Stacey Valentine, David Jarrett, Kerry Dodsworth, Mary Wands, Nisa Khan, Jane Tandy, Catrin Watkinson, Wendy Golding, Rebecca Butler, Max Williams, Yasmin Davies, Keith Yip, Claire James, Anne Suttling, Aditya Maney, Giles Edward Gamble, Adam Hague, Bethan Charles, Sujata Blane, Beatriz Duran, Caroline Lambert, Katherine Stagg, Robert Whiting, Jane E Homan, Sarah Brown, Malik Hussain, Miriam Harvey, Libby Graham, Leanne Foote, Catherine Lane, Liz (Joan) Kemp, Joy Rowe, Helen Durman, Jayne Foot, Lucy Brotherton, Nicholas Hunt, Corinne Pawley, Alison Whitcher, Patrick Sutton, Susan Mcdonald, Denys Pak, Alison Wiltshire, Jennifer Jagger, Anthony K Metcalf, Gail Louise Healey, Joyce Balami, Clare Marie Self, Melissa Crofts, Annie Chakrabarti, Chit Hmu, Garth Ravenhill, Charmaine Grimmer, Thandar Soe, Jocelyn Keshet-Price, Margaret Langley, Ian Potter, Pui-Lin Tam, Mary Joan Macleod, Patricia Cooper, Michael Christie, Janice Irvine, Faye Annison, David Christie, Celia Meneses, Amber Johnson, Anu Joyson, Sandra Nelson, Vicky Taylor, John Reid, Rebecca Clarke, Jacqueline Furnace, Heather Gow, Youssif Abousleiman, Tania Beadling, Sally Collins, Stuart Jones, Jessica Purcell, Samantha Bloom, Shelly Goshawk, Marcial Landicho, Sivatharshini Sangaralingham, Yasmin Begum, Sherree Mutton, Elangovan Munuswamy Vaiyapuri, Jane Allen, Jemma Lowe, Martin Hughes, Ivan Wiggam, Sarah Cuddy, Suzanne Tauro, Brian Wells, Azlisham Mohd Nor, Nicola Persad, Maggie Kalita, Stuart Weatherby, Claire Brown, Adrian Pace, Daniel Lashley, Mike Marner, Marie Weinling, Natasha Wilmshurst, Darren Waugh, Anna Mucha, Alex Shah, John Baker, Jacqueline Westcott, Richard Cowan, Evangelos Vasileiadis, Samira Mumani, Anthea Parry, Cathy Mason, Melinda Holden, Katerina Petrides, Tomoko Nishiyama, Hina Mehta, Manju Krishnan, Dacey Lynne, Lisa Thomas, Connor Lynda, Catherine Hughes, Clare Clements, Rhys Williams, Tal Anjum, Storton Sharon, Susan Tucker, Paul Jones, Deanne Colwill, Helen Thompson Jones, Dinesh Chadha, Mark Fairweather, Deborah Walstow, Rosanna Fong, Stuart Johnston, Christine Almadenboyle, Sarah Ross, Shona Carson, Priya Nair, Emily Tenbruck, Mairi Stirling, Aparna Pusalkar, Hannah Beadle, Kelly Chan, Puneet Dangri, Asaipillai Asokanathan, Anita Rana, Sunita Gohil, Mark Massyn, Prabhu Aruldoss, Angela Cook, Karen Crabtree, Sura Dabbagh, Toby Black, Caroline Clarke, Denise Mead, Ruth Fennelly, Alpha Anthony, Linda Nardone, Victoria Dimartino, Michele Tribbeck, David Broughton, Dinesh Tryambake, Lynn Dixon, Agnieszka Skotnicka, Jane Thompson, Sarah Whitehouse, Andrew Sigsworth, Jason Wong, Arunkumar Annamalai, Julie Pagan, Brendan Affley, Caroline Sunderland, Lynda Goldenberg, Atif Khan, Peter Wilkinson, Raad Nari, Lucy Abbott, Emma Young, Amritpal Shakhon, Sally Lock, Jack Stewart, Rita Pereira, Margaret Dsouza, Sally Dunn, Anne-Marie Mckenna, Nina Cron, Michelle Kidd, Grace Hull, Kerry Bunworth, Graham Drummond, Karim Mahawish, Nicola Hayes, Lynne Connell, Jennifer Simpson, Helen Penney, Shuja Punekar, Joanne Nevinson, William Wareing, Jacqueline Ward, Richard Greenwood, Duncan Austin, Azra Banaras, Carolin Hogan, Thomas Corbett, Nnebuife Oji, Emma Elliott, Maria Brezitski, Nathalie Passeron, Laura Howaniec, Caroline Watchurst, Krishna Patel, Renuka Erande, Rahi Shah, Nabarun Sengupta, Maria Metiu, Celia Gonzalez, Sarah Funnell, Jordi Margalef, Gillian Peters, Indra Chadbourn, Ramachandran Sivakumar, Rajesh Saksena, Jane Ketley-O'donel, Richard Needle, Elaine Chinery, Alison Wright, Sue Cook, Joseph Ngeh, Harald Proeschel, Paige Cook, Pauline Ashcroft, Simon Sharpe, Stephanie Jones, Damian Jenkinson, Deborah Kelly, Holly Bray, Gunaratnam Gunathilagan, Sally Jones, Sorrell Tilbey, Saidu Abubakar, Joseph Vassallo, Dee Leonard, Lucy Orrell, Aziz Hasan, Asif Khan, Sulmaaz Qamar, Susan Graham, Emma Hewitt, Jennifer Awolesi, Muhammad Haque, Alissa Kent, Elizabeth Bradshaw, Martin Cooper, Inez Wynter, Anoja Rajapakse, Joumana Janbieh, Abu M Nasar, Lynne Wade, Linda Otter, Steve Haigh, Jamie-Rae Burgoyne, Rebecca Boulton, Andrew Boulton, Rayessa Rayessa, Emma Clarkson, Horne Rhian, Amy Fleming, Kim Mitchelson, Vicki Lowthorpe, Ahmed Abdul-Hamid, Phil Jones, Claire Duggan, Abigail Hynes, Emma Nurse, Syed Abid Raza, Sarah Jones, Udaya Pallikona, Bleddyn Edwards, Geraint Morgan, Kirsty Dennett, Helen Tench, Ronda Loosley, Toby Trugeon-Smith, Rhian Jones, Richard Williams, Donna Robson, Sunanda Mavinamane, Sanjeevi Meenakshisundaram, Lalitha Ranga, Sharon Dealing, Andrew Hill, Margaret Hargreaves, Tom Smith, Julie Bate, Linda Harrison, Ramanathan Kirthivasan, Emma Cannon, Joanne Topliffe, Rebecca Keskeys, Sarah Williams, Fiona Mcneela, Frances Cairns, Thomas James, Amanda Lyle, Sheela Shah, George Zachariah, Lauren Fergey, Susan Smolen, Lucy Cooper, Elizabeth Bohannan, Siddiq Omer, Sageet Amlani, Nadia Hunter, Melissa Hawkes-Blackburn, Giosue Gulli, Alice Peacocke, Justine Amero, Maria Burova, Ottilia Speirs, Steph Levy, Lynda Francis, Susan Holland, Sean Brotheridge, Helen Lyon, Christine Hare, Samantha Jackson, Lorraine Stephenson, Samer Al Hussayni, James Featherstone, Agness Bwalya, Arun Singh, M N Goorah, Jamie Walford, Angela Bell, Christine Kelly, Darren Rusk, Deborah Sutton, Farzana Patel, Stephen Duberley, Kathryn Hayes, Lorraine Hunt, Ahmed El Nour, Sacha Honour, Chloe Box, Simon Dyer, Lynne Brown, Kerry Elliott, Emma Temlett, John Paterson, Rosie Furness, Shelli Young, Enoch Orugun, Chris Brewer, Sarah Thornthwaite, Hannah Crowther, Rachel Glover, Moe Sein, Kashif Haque, Elspeth Gibson, Sam Wong, Karen Rotchell, Karen Burton, Lisa Brookes, Linda Bailey, Chris Lindley, Abbi Murray, Karen Waltho, Maureen Holland, Pradeep Kumar, Purnima Harlekar, Laura Booth, Charlotte Culmsee, Jade Drew, Mohammad Khan, Nicola Mackenzie, Carmel Thomas, Jane Ritchie, James Barker, Michael Haley, Donna Cotterill, Lynne Lane, Christine Little, Dawn Simmons, Glenn Saunders, Harvey Dymond, Sarah Kidd, Rachel Warinton, Yara Neves-Silva, Branimir Nevajda, Michael Villaruel, Udayaraj Umasankar, Seema Patel, Anna Man, Natasha Christmas, Ravi Rangasamy, Richard Ladner, Georgina Butt, Wilson Alvares, Narasimha Gadi, Michael Power, Belinda Wroath, Kevin Dynan, David Wilson, Sarah Crothers, Catherine Leonard, Samantha Hagan, Geraldine Douris, Djamil Vahidassr, Alastair Thompson, Brian Gallen, Shirley Mckenna, Collette Edwards, Clare Mcgoldrick, Murdi Bhattad, Khalil Kawafi, Deborah Morse, Patricia Jacob, Lisa Turner, Narayanamoorti Saravanan, Linda Johnson, Sadie Humphrey, Robert Namushi, Ramesh Patel, Jemma Mclaughlin, Paul Omahony, Esther Osikominu, Chukwuka Orefo, Chisha Mcdonald, Esther Makanju, Tabindah Khan, Grace Appiatse, Helena Stone, Martia Augustin, Alicia Wardale, Maqsud Salehin, Duncan Bailey, Luciano Garcia-Alen, Latheef Kalathil, Sarah Tinsley, Taya Jones, Kelly Amor, Andrew Ritchings, Emma Margerum, Jane Horton, Richard Miller, Nireekshana Gautam, Julie Meir, Amaryl Jones, Janet Putteril, Mirella Lepore, Rachel Gallifent, Laura-Louise Arundell, Catherine Mcredmond, Alicia Goulding, Vivek Nadarajan, Julia Laurence, Su Fung Lo, Sabina Melander, Paul Nicholas, Elizabeth Woodford, Gillian Mckenzie, Vietland Le, Jacolene Crause, Robert Luder, Maneesh Bhargava, Girish Bhome, Venetia V Johnson, Dara Chesser, Hayley Bridger, Elodie Murali, Jon Scott, Susan Morrison, Amy Burns, Julie Graham, Madeline Duffy, Khalid Ali, Emma Pitcher, Jane Gaylard, Julie Newman, Sunil Punnoose, Sarah Besley, Kirtan Purohit, Amy Rees, Mark Davy, Osman Chohan, Muhammad Fozan Khan, Rachel Walker, Vicky Murray, Charlotte Bent, Susan Oakley, Cassilda Peixoto, Suzanne Jones, Gaybrielle Livingstone, Fiona Butler, Sally Bradfield, Laura Gordon, Jenneke Schmit, Anika Wijewardane, Tineke Edmunds, Rebecca Wills, Catherine Medcalf, Lucia Argandona, Larissa Cuenoud, Hanna Hassan, Esther Erumere, Aidan Ocallaghan, Patrick Gompertz, Ozlem Redjep, Grace Auld, Anna Song, Tillana Tarkas, Hashim Kabash, Rumbi Hungwe, University of St Andrews. Sir James Mackenzie Institute for Early Diagnosis, University of St Andrews. Population and Behavioural Science Division, and University of St Andrews. School of Medicine

Subjects
RM, medicine.medical_specialty, Neurology, Neurologi, NDAS, 030204 cardiovascular system & hematology, Placebo, Minimisation (clinical trials), Article, B700, law.invention, 03 medical and health sciences, 0302 clinical medicine, Double-Blind Method, Randomized controlled trial, Modified Rankin Scale, law, Fluoxetine, Internal medicine, Humans, Medicine, 030212 general & internal medicine, R2C, Acute stroke, business.industry, ~DC~, General Medicine, Odds ratio, RM Therapeutics. Pharmacology, Stroke, RC Internal medicine, BDC, business, Selective Serotonin Reuptake Inhibitors, RC, medicine.drug
Abstract

Background: Results of small trials indicate that fluoxetine might improve functional outcomes after stroke. The FOCUS trial aimed to provide a precise estimate of these effects.Methods: FOCUS was a pragmatic, multicentre, parallel group, double-blind, randomised, placebo-controlled trial done at 103 hospitals in the UK. Patients were eligible if they were aged 18 years or older, had a clinical stroke diagnosis, were enrolled and randomly assigned between 2 days and 15 days after onset, and had focal neurological deficits. Patients were randomly allocated fluoxetine 20 mg or matching placebo orally once daily for 6 months via a web-based system by use of a minimisation algorithm. The primary outcome was functional status, measured with the modified Rankin Scale (mRS), at 6 months. Patients, carers, health-care staff, and the trial team were masked to treatment allocation. Functional status was assessed at 6 months and 12 months after randomisation. Patients were analysed according to their treatment allocation. This trial is registered with the ISRCTN registry, number ISRCTN83290762.Findings: Between Sept 10, 2012, and March 31, 2017, 3127 patients were recruited. 1564 patients were allocated fluoxetine and 1563 allocated placebo. mRS data at 6 months were available for 1553 (99·3%) patients in each treatment group. The distribution across mRS categories at 6 months was similar in the fluoxetine and placebo groups (common odds ratio adjusted for minimisation variables 0·951 [95% CI 0·839–1·079]; p=0·439). Patients allocated fluoxetine were less likely than those allocated placebo to develop new depression by 6 months (210 [13·43%] patients vs 269 [17·21%]; difference 3·78% [95% CI 1·26–6·30]; p=0·0033), but they had more bone fractures (45 [2·88%] vs 23 [1·47%]; difference 1·41% [95% CI 0·38–2·43]; p=0·0070). There were no significant differences in any other event at 6 or 12 months.Interpretation: Fluoxetine 20 mg given daily for 6 months after acute stroke does not seem to improve functional outcomes. Although the treatment reduced the occurrence of depression, it increased the frequency of bone fractures. These results do not support the routine use of fluoxetine either for the prevention of post-stroke depression or to promote recovery of function.Funding: UK Stroke Association and NIHR Health Technology Assessment Programme.

Published
2019
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9. Tunable self-assembly of magnetotactic bacteria: Role of hydrodynamics and magnetism

Author

Eric Mumper, Emily Osborne, Brian H. Lower, Hiran Wijesinghe, Christopher Pierce, Ratnasingham Sooryakumar, and Steven K. Lower

Subjects
010302 applied physics, Surface (mathematics), Materials science, Magnetotactic bacteria, Magnetism, Solid surface, Rational design, General Physics and Astronomy, Nanotechnology, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, lcsh:QC1-999, 0103 physical sciences, Perpendicular, Self-assembly, 0210 nano-technology, lcsh:Physics
Abstract

Self-assembly is an important process in biological systems and also a promising avenue toward dynamic and responsive micro- and nano-technologies. This study discusses the non-equilibrium self-assembly of inherently magnetic bacteria oriented perpendicular to a solid surface. An interplay between hydrodynamic and magnetic interactions leads to stable three-dimensional clusters in the long-time regime, which may be programmatically assembled, disassembled, and translated across a surface. The implications of the findings for the rational design of non-equilibrium self-assembly in general are discussed.

Published
2020

10. 19. Navigating Sexual Health within a Desexualized Body: HIV/AIDS & Disability

Author

Emily Osborne

Subjects
medicine.medical_specialty, Acquired immunodeficiency syndrome (AIDS), business.industry, Medicine, business, medicine.disease, Psychiatry, Reproductive health
Abstract

This research explores commonly overlooked intersections of disability and HIV/AIDS, theorizing that institutional desexualization of disabled students in educational settings is correlated with higher rates of HIV transmission later in life. Working primarily within the fields of disability studies, HIV/AIDS studies, and gender studies, this project targets the gap in research on disability and HIV/AIDS, understanding disabled individuals as being at a heightened risk for HIV transmission yet simultaneously being less likely to receive sexual health education than non-disabled peers, as seen in emerging research by Nora Grace (2003; 2004). This research theorizes a relationship between institutional desexualization and HIV transmission later in life. Specifically, this relationship may exist in the following pattern, beginning with early and continued desexualization of disabled individuals leading to social assumptions of universal asexuality, thus potentially causing a lack of sexual health resources and education due to this assumed sexual inactivity. A lack of sexual health resources may influence higher rates of engagement in high-risk sexual activity due to this lack of sexual health knowledge among disabled individuals, which could thus account for higher rates of HIV transmission within disabled populations. In establishing disabled individuals as at heightened risk for HIV and disrupting the desexualization of disability, I provide recommendations for future research and policy pathways in the aim of further exploring the intersections of HIV/AIDS and disability in order to reduce the rates of HIV transmission within disabled population.

Published
2018
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11. Antiplatelet therapy with aspirin, clopidogrel, and dipyridamole versus clopidogrel alone or aspirin and dipyridamole in patients with acute cerebral ischaemia (TARDIS): a randomised, open-label, phase 3 superiority trial

Author

Ruth Graham, Charlotte Eglinton, Swapna Kunhunny, J Banns, Alison K Wright, Sunil Munshi, C Khuoge, Beverley McClelland, A Benford, Jean Buxton, Maia Beridze, K Deighton, Neha Chopra, Nichola Motherwell, Emily C. O'Brien, Sonia S. Anand, Anand Dixit, Una Poultney, N Beridze, Jessica Beavan, K Dizayee, Thompson G. Robinson, Deborah Howcroft, Alison Sarah rachel Mcloughlin, A Kenton, Derek Esson, A Tittle, L Matter, Kerstin Knops, C Hubbuck, Kath Chapman, R Rangasamay, Ranjan Sanyal, Sarah Lewis, Alpha Anthony, Sarah Board, Janice Irvine, Anna Verrion, Katherine Whittamore, N Khizanishvili, L O'Shea, Lisa Shaw, K Ayes, Tracey Dobson, N Akiashvili, Gill Rogers, Jenny Peters, Alda Remegoso, S S Hansen, James A. White, T Attygalle, Rosalind Brown, Irene Martin, Manesh R. Patel, D O'Kane, Stuart J. Pocock, Khalid Rashed, G Spurling, Sharon Tysoe, Frances Harrington, Margo Henry, Rowilson Jarapa, Julia Hindle, K A Kay, Carinna Vickers, S Duty, Angela Bowring, David Eveson, Saul Sundayi, Mary Kambafwile, Rashmi Kumar, Jack Roffe, Marilyn James, Natalie Temple, R Oliver, Christine Kelly, M Niemierko, J Chembala, S Jones, M Dent, K Chatterjee, S Atkinson, J Tomlinson, S Norman, E Cattermole, P Daboo, Nicola Gilzeane, Anne Hardwick, Pietro Cariga, C Rankin, David A. Wood, Lelia Duley, John Bamford, L Holford, J Good, C Ambulo, S Gomm, Girish Muddegowda, Fiona Wright, M Alao, L Sztriha, Maite D. 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Duignan, Jane Gaylard, Asaipillai Asokanathan, Joanna O'Reilly, J Kessell, Diane Havard, T Fluskey, L Lee-Carbon, Graham Venables, Margi Godfrey, L Boxall, C Douglass, Emelda Veraque, Elaine Amis, M Chowdhury, Rekha Keshvara, Adrian Blight, G Thomas, Marc Randall, S Stoddart, Paul Guyler, Rita Ghatala, Janet T Scott, Kathy J. Jenkins, Sarah Ross, John Aeron-Thomas, C Allcock, J Goodsell, Ifan Jones, D Kakabadze, T T Thomsen, V Petrovic, I. Watson, C Athulathmudali, Hanne Christensen, Susan Crawford, Christine Kamara, James McIlmoyle, Stephen Woodward, Christine McAlpine, Emma Temlett, Gwendoline Wilkes, Benjamin Hyams, L Mills, S Brixey, Raj Shekhar, P Findlay, Markus, Hugh [0000-0002-9794-5996], and Apollo - University of Cambridge Repository

Subjects
Male, medicine.medical_specialty, Georgia, Ticlopidine, Denmark, Hemorrhage, 030204 cardiovascular system & hematology, Risk Assessment, Brain Ischemia, 03 medical and health sciences, 0302 clinical medicine, Ischemia, Recurrence, Modified Rankin Scale, Internal medicine, medicine, Humans, Thrombolytic Therapy, Prospective Studies, cardiovascular diseases, Stroke, Aged, Aspirin, business.industry, Dipyridamole, General Medicine, Guideline, Middle Aged, Clopidogrel, medicine.disease, United Kingdom, Treatment Outcome, Ischemic Attack, Transient, Research Design, Acute Disease, Platelet aggregation inhibitor, Drug Therapy, Combination, Female, business, Platelet Aggregation Inhibitors, 030217 neurology & neurosurgery, New Zealand, medicine.drug
Abstract

Summary Background Intensive antiplatelet therapy with three agents might be more effective than guideline treatment for preventing recurrent events in patients with acute cerebral ischaemia. We aimed to compare the safety and efficacy of intensive antiplatelet therapy (combined aspirin, clopidogrel, and dipyridamole) with that of guideline-based antiplatelet therapy. Methods We did an international, prospective, randomised, open-label, blinded-endpoint trial in adult participants with ischaemic stroke or transient ischaemic attack (TIA) within 48 h of onset. Participants were assigned in a 1:1 ratio using computer randomisation to receive loading doses and then 30 days of intensive antiplatelet therapy (combined aspirin 75 mg, clopidogrel 75 mg, and dipyridamole 200 mg twice daily) or guideline-based therapy (comprising either clopidogrel alone or combined aspirin and dipyridamole). Randomisation was stratified by country and index event, and minimised with prognostic baseline factors, medication use, time to randomisation, stroke-related factors, and thrombolysis. The ordinal primary outcome was the combined incidence and severity of any recurrent stroke (ischaemic or haemorrhagic; assessed using the modified Rankin Scale) or TIA within 90 days, as assessed by central telephone follow-up with masking to treatment assignment, and analysed by intention to treat. This trial is registered with the ISRCTN registry, number ISRCTN47823388. Findings 3096 participants (1556 in the intensive antiplatelet therapy group, 1540 in the guideline antiplatelet therapy group) were recruited from 106 hospitals in four countries between April 7, 2009, and March 18, 2016. The trial was stopped early on the recommendation of the data monitoring committee. The incidence and severity of recurrent stroke or TIA did not differ between intensive and guideline therapy (93 [6%] participants vs 105 [7%]; adjusted common odds ratio [cOR] 0·90, 95% CI 0·67–1·20, p=0·47). By contrast, intensive antiplatelet therapy was associated with more, and more severe, bleeding (adjusted cOR 2·54, 95% CI 2·05–3·16, p Interpretation Among patients with recent cerebral ischaemia, intensive antiplatelet therapy did not reduce the incidence and severity of recurrent stroke or TIA, but did significantly increase the risk of major bleeding. Triple antiplatelet therapy should not be used in routine clinical practice. Funding National Institutes of Health Research Health Technology Assessment Programme, British Heart Foundation.

Published
2017

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