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Hermes Gadelha
MSc in Physics, BSc in Physics
- DPhil student in Mathematics.
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Microbiological fluid dynamics.
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Supervisors: Dr. Eamonn A. Gaffney and Prof. Philip K. Maini.
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Research Interests:
Currently, I am very interested in theoretical approaches applied to the swimming of microorganisms, especially human sperm, and how the cell environs influences such motility, as well as modern microscopy and digital imaging analysis applied to these systems. I am also interested in axoneme motion, flagellar wave propagation in spermatozoa, dynamics of elastic or semi-flexible filaments in both Newtonian and non-Newtonian fluids, and force-generating mechanisms, such as molecular motors. Furthermore, I still enjoy studying pattern formation in Hele-Shaw flows using both analytical and numerical tools.
Prizes, Awards and Scholarships:
- 05/2009 Timothy Bailey Award (£ 250) - Project: “Mathematical modelling of human sperm motility". The Timothy Bailey Trust has been set up in memory of Timothy Bailey, a biology graduate of Christ Church, Oxford. It aims to provide financial support to students of Oxford University to assist them in undertaking high-quality research projects in biological sciences.
- 05/2009 Mathematical Institute (University of Oxford) travel award for Les Houches School of Physics session XCII: “New Trends in the Physics and Mechanics of Biological Systems”, Les Houches, France.
- 05/2009 St. John's College and Mathematical Institute (University of Oxford) travel award for the 3rd international symposium on Instabilities and Bifurcations in fluid dynamics, Nottingham, United Kingdom.
- 03/2009 St. John's College Academic Grant (£ 233.56) to support towards the acquisition of books, materials, and other items of an academic nature.
- 2009-2011 North Senior Scholar Award. The St. John's College elects annually a North Senior Scholar from among its current graduate students, in all subjects. The elected Scholar receives an symbolic emolument of £ 500 per year and has the right to dine at High Table. The basis for the award was excellence in research.
- 09/2008 Marie Curie Scholarship and St. John's College travel award for 7th European Mechanics Society Conference (Euromech): Fluid Mechanics international conference, Manchester, United Kingdom.
- 08/2008 The European Consortium for Mathematics in Industry (ECMI) travel award for The 22nd ECMI Modelling Week, Eindhoven, Netherlands.
- 04/2008 Hester Cordelia Parsons Award (£ 1,915) - Project: “Assessing biophysical measures of human spermatozoa flagellar motility: an initial patient vs. donor study". This award is intended to encourage the development of experimental methods at the boundaries of biological, physical and chemical sciences, and aims to enable the holder to learn and develop new experimental methods, and to support travel and subsistence expenses that may be incurred. In particular, it has funded my laboratory training and experiments investigating human sperm motility at the Centre for Human Reproductive Science (ChRS) - Birmingham Women's NHS Foundation Trust, under supervision of Dr. Jackson C. Kirkman-Brown and Dr. David J. Smith.
- 2007-2011 CAPES Foundation DPhil Research Degree Fellowship (~£104,000). This governmental scholarship was awarded by the Ministry of Education of Brazil and has sponsored my DPhil degree at the University of Oxford. This scholarship includes: (i) monthly stipends, (ii) university tuition and fees, (iii) one-time settling-in allowance and (iv) international air ticket: Recife(BR)/Oxford(GB)/Recife(BR). The scholarship duration is 48 months.
- 05-08/2007 Pre-Doctorate Research Scholarship, FACEPE (Brazilian Research Agency). The FACEPE scholarship funded the research project: “Confined rotating fluids: the coupling effect of the viscosity and injection on the Coriolis force". This project was performed during the period between the end of my MSc degree in Brazil and the beginning of the DPhil degree in UK, and resulted on the publication of two manuscripts.
- 08/2007 Pan-American Advanced Studies Institute (PASI) travel award for international conference: “On interfacial fluid dynamics: from theory to applications”, Mar del Plata, Argentina.
- 10/2006 Department of Physics (UFPE) travel award for regional conference: 24th Physics Meeting of Northeast/North Brazil, João Pessoa, PB, Brazil.
- 02/2006 Millennium institute of Complex Fluids travel award for Summer School on Soft Matter Physics: Physics Institute of University of São Paulo (IFUSP), Brazil.
- 05/2005 Department of Physics (UFPE) travel award for national conference: 28th Condensed Matter Physics Meeting of the Brazilian Physical Society, Santos, SP, Brazil.
- 2005-2007 CNPq Master's Research Degree Fellowship. The CNPq scholarship was awarded by the Ministry of Science and Technology of Brazil and funded my MSc degree at the Department of Physics, Universidade Federal de Pernambuco (UFPE). Our results were also compiled in a published manuscript.
- 2004 Undergraduate Scientific Research Honor awarded by the UFPE rector. The basis for this awarded was excellence in research.
- 2003-2005 CNPq Undergraduate Research Fellowship. This scholarship was also awarded by the Ministry of Science and Technology of Brazil, and sponsored my research studies during the undergraduate degree in physics at UFPE. As a result, our main theoretical findings were published during my undergraduate course, being my very first scientific paper.
- 11/2003 Brazilian Physical Society (SBF) travel award for regional conference: 26th Physics Meeting of Northeast/North Brazil, Fortaleza, CE, Brazil.
- 2002-2003 Undergraduate Teaching Assistant Fellowship, Universidade Federal de Pernambuco.
Major/Recent Publications:
07. Hermes Gadêlha, Eamonn A. Gaffney, David J. Smith and Jackson. C. Kirkman-Brown “Non-linear instability in flagellar dynamics: A novel modulation mechanism in sperm migration ?"Journal of the Royal Society Interface, In press.
06. Hermes Gadêlha and José A. Miranda “Effects of normal viscous stresses on radial viscous fingering"Physical Review E 79, 066312 (2009). http://link.aps.org/doi/10.1103/PhysRevE.79.066312
05. David J. Smith, Eamonn A. Gaffney, Hermes Gadêlha, Nikil Kapur and Jackson. C. Kirkman-Brown “Bend propagation in the flagella of migrating human sperm, and its modulation by viscosity"Cell Motility and the Cytoskeleton 66, 220-236 (2009). http://doi.wiley.com/10.1002/cm.20345
04. Alvarez-Lacalle, Hermes Gadêlha and José A. Miranda “Coriolis effects on fingering patterns under rotation"Physical Review E 78, 026305 (2008). http://link.aps.org/doi/10.1103/PhysRevE.78.026305 (manuscript selected for the “Kaleidoscope" section: http://pre.aps.org/node/2030)
03. Ching-Yao Chen, C.-W. Huang, Hermes Gadêlha and José A. Miranda. “Radial viscous fingering in miscible Hele-Shaw flows: A numerical study"Physical Review E 78, 016306 (2008). http://link.aps.org/doi/10.1103/PhysRevE.78.016306(manuscript also selected for the “Kaleidoscope" section: http://pre.aps.org/node/1959)
02. Hermes Gadêlha, Nielison Brito and José A. Miranda “Dynamics of viscous fingers in rotating Hele-Shaw cells with Coriolis effects”Physical Review E 75, 016305 (2007). http://link.aps.org/doi/10.1103/PhysRevE.75.016305
01. Hermes Gadêlha and José A. Miranda “Finger competition dynamics in rotating Hele-Shaw cells”Physical Review E 70, 066308 (2004). http://link.aps.org/doi/10.1103/PhysRevE.70.066308
Media - Diario de Pernambuco interview published on 17-Jan-2010 (Brazilian newspaper)
"No caminho da reprodução"
http://www.diariodepernambuco.com.br/2010/01/17/urbana12_0.asp#
Teaching:
10-12/2007 Teaching Assistant. Mathematical Institute, University of Oxford, UK.
2005 - 2007 Assistant Professor. Mathematics Department, Universidade Federal de Pernambuco, Brazil.
2002 - 2004 Physics Teacher. Colégio Atual (private school).
2003 - 2003 Mathematics Teacher. Colégio ELO (private school).
2001 - 2001 Assistant Teacher. Unifera (private school).
Further Details:
Research Supervision Activity
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Pedro Paulo Pinheiro Lima, awarded with FACEPE (Brazilian Research Agency) undergraduate fellowship, Project: ``The merit of genuinely Brazilian science ". One year undergraduate project under my supervision, during my position as assistant professor at Department of Mathematics, Universidade Federal de Pernambuco, Brazil.
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