Andrew Robson, Gabriele Marcotti, David Royce, Sarah Butler and Caroline Merrell, Rosemary Righter, Cirep Nol, Robert Cole, Bel Mooney, Neelam Verjee, John Fitzgibbon, Middlesbrough, Sarah Potter, Frances Gibb Legal Editor, Simon Barnes, Magnus Linklater, Richard Hobson, Philip Howard, Carol Midgley, David Lister Scotland Correspondent, David Chater, James Bone, James Ducker, Rachel Campbell-Johnston, Clive Davis, Elizabeth Judge, Rosalind Renshaw, Marlon Brando's Corset, Kevin Eason, Geoff Brown, Dr Peter Rowan, Andrew Norfolk, Christopher Hack, Joe Joseph, John Medley, Valerie Elliott Countryside Editor, Jane MacArtney, Stewart Tendler Crime Correspondent, Angus Nicol Piping Correspondent, Tom Bawden, Dominic Walsh, J. Carter, Berkhamsted, Herts, Rory Watson, Greg Hurst, Sam Coates and Catherine Boyle, Toby Moore, Richard Ford Home Correspondent, Nicholas Blanford, Stephen Farrell, Tony Pristavec, Marcus Williams, Valerie Elliott Consumer Editor, Barney Jones, Hugo Rifkind, Elizabeth Judge and Sarah Butler, Douglas Henderson, Daniel McGrory, Bob Woolmer, Sarah Vine, Lisa Armstrong, John Westerby, Rick Broadbent, Bryan Kavanagh Director, Morgan Falconer, Ann Treneman, Simon de Bruxelles, Rob Wright, Bernard Lagan, Neil Harman Tennis Correspondent, Raymond Keene, Adam Sage, Richard Lambert, Matt Hughes, Sean O'Neill, Jeremy Page, Tom Halpin, Chris Campling, Patrick Hosking, Helen Nugent, Damian Whitworth, Roger Boyes, Small Caps, Grayson Perry, Dalya Alberge, Tony Cascarino, Paul Simons, Hazel Davis, Lord Blaker, Anne Ashworth, Alan Green, Ali al-Hamdani, Philip Webster Political Editor, Tosin Sulaiman, Jeff Galvin, Philip Webster Reports, Tim Hames, Michele Kirsch, Nigel Henderson, C. Brougham, Philip Yaffe, Peter Riddell, Charles Bazlinton, Gary Jacob and James Ducker, Michael Gove, Ben Webster, David Sinclair, Jason Mellor, Catherine Philp, Martin Waller, Irene Lancaster, Clive Gilbert, James Jackson, Nigel Hawkes Health Editor, Sarah Butler, Charles Holcombe, Lydia Hislop, Sam Coates Political Correspondent, Stephen Dalton, Leo Lewis, David Powell, Alan Lee Racing Correspondent, Alexandra Blair Education Correspondent, Olav Bjortomt, David Robertson, Peter Klinger, Sam Lister Health Correspondent, John Tippler, Joe Bolger, Lisa Verrico, Mark Barrett, Liz Chong and Gary Duncan, Virginia Matthews,
... BBCSO/Robertson Albert Hall/Radio 3 World music Sergio Mendes Barbican A saviour out of the blue ...
2006 - Gale Group | TDA
... Analysis of COBE-DMR Cosmic Microwave Background Maps Torres, Sergio Abstract Geometric characteristics of random fields are exploited ...
Tópico(s): Scientific Research and Discoveries
1994 - IOP Publishing | The Astrophysical Journal
Andrew Robson, Gabriele Marcotti, Canon Simon Pettitt, Azmi Keshawi, Leo Lewis Asia Business Correspondent, Amanda Ursell, Simon Barnes, Peter Lansley, Mark Souster, Paul Sanders, Richard Beeston, Foreign Editor, David Smith, Christine Seib, David Chater, James Bone, James Ducker, John Kenny, Patrick Kidd, Will Pavia, Charlene Sweeney, James Hider, Bishop Timothy Dudley-Smith, Lucy Bannerman, Jim Dixon, Martin Fletcher, Roslyn Pine, Jack Malvern, Gary Jacob, Tim Reid, Libby Purves, Ian Bayley, Richard Ford Home Correspondent, Nicholas Blanford, Anatole Kaletsky, Rhys Blakely, David Hands, Bob Wells, Edward Gorman, Robin P. Wilkinson, Richard Hobson Deputy Cricket Correspondent, Russell Kempson, Suzy Jagger, Oliver Kay, Helen Browning Food & Farming Director, Scott Rutherford, Sam Coates, John Hopkins, George Wake, Vasily Fedosenko, Rob Wright, Edward Gorman Motor Racing Correspondent, Neil Harman Tennis Correspondent, Raymond Keene, Luke Leitch, Alastair Grant, Douglas Alexander, W. R. Ball, Matthew Pryor, Matt Hughes, Christine Buckley Industrial Editor, Marcus Binney Architecture Correspondent, Peta Bee, Jeremy Page, Chris Campling, Fran Yeoman, Adam Fresco Crime Correspondent, Lindsey Bareham, Marcus Leroux, Mick Hume, Peter Dixon, Elizabeth Pearcey, Tim Wall, David Hands Rugby Correspondent, Tom Dart, Paul Simons, Nigel Kendall, William Rees-Mogg, Nick Szczepanik, Sam Coates Chief Political Correspondent, Ian King Deputy Business Editor, Emily Ford, Dominic Maxwell, Helen Power, George Caulkin, Simon Parker, Kelsey Grammer, Andrew Hollering, Bojan Pancevski, Mark Thompson, Valentine Low, Sarah Butler, Mark Williams, Dr Thomas Stuttaford, Stephen Dalton, Bill Edgar, Alyson Rudd, Louis Weston, Brian Patten, Alice Miles, Mark Venables, D. Roberts, Alan Lee Racing Correspondent, Olav Bjortomt, Herman Rosenblat, Jan Raath, Miles Costello, Richard Murphy, Alan Leaman,
... move any mountain John Hopkins, Golf Correspondent, found Sergio García's mind on a different summit as ... place Scotland The Box Live matches McGeady returns Torres and Ronaldo v Messi and Robben will never ...
2008 - Gale Group | TDA
Sergio Torres, Esteban Vera, R. Reeves, Sergio K. Sobarzo,
The non-uniform response in infrared focal plane array (IRFPA) detectors produces corrupted images with a fixed-pattern noise. In this paper we present an enhanced adaptive scene-based non-uniformity correction (NUC) technique. The method simultaneously estimates detector's parameters and performs the non-uniformity compensation using a neural network approach. In addition, the proposed method doesn't make any assumption on the kind or amount of non-uniformity presented on the raw data. The strength ...
Tópico(s): Calibration and Measurement Techniques
2003 - SPIE | Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
Gordon Williams, John Dugdale, Michael Prescott, Peter Fairley, Patrick French, Mark Stretton, Matthew Wall, Barbara Hall, Alec Stewart, Nigel Botherway, Christopher Morgan Religious Affairs Correspondent, Jon Simons, N J, Helen Kirwan-Taylor, Jim Munro, David Brown, Jon Swain, Emma Payne, Irish moonshine, Rob Hughes, John Peter, John Mooney, Pam Barrett, Dan Pearson, Amanda Fraser, Amanda Ursell, Emma Moore, Jonathan Miller, Christopher Somerville, J D, Ruth Rogers, Emine Saner, Frank Whitford, Rough Guides, Ivo Tennant, Terence Blacker, Kirstle Hamilton, Kathryn Cooper, Dr Paula McGee, Dave Funday editor, David Smith, Kirstie Hamilton City Editor, Humphrey Carpenter, Edin Hamzic, Rory Godson, Melanie Phillips, Nick Pitt, J F Britton, Neil Wormald, J M Robinson, E P, Andrew Sullivan, Julian Woolford, L R Carlisle, Clive Davis, Joe Lauria, Stephen Grey, K R, Adam Lively, Lynne Truss, Sally Brown, S P Moran, Richard Phillipson, Tony Allen-Mills, Simon Wilde, Tim Cook, Cornwall, Sheila Lavery, Eleanor Mills, Dr D V Davies, Tom Walker, Anthony Sattin, Robert Winnett, Wendy Holden, Irwin Stelzer, Jane Moore, Graham Simmons, Nick Proctor, Peter Wilson, Robert Hewison, Dr Rogar Henderson, Alan Robinson, David Dougill, Philip Kingsley, Jenni Muir, Dr Mark Avery Director, Paul Flynn, Sarah Toyne, David Hewson, Hugh Canning, Alasdair Reid, Margarette Driscoll, John Sutherland, Jeremy Clarkson, Stewart Lee, Edward Porter, Peter Conradi, Peter Kemp, Louise Taylor, Michael Jump, John Waples Deputy City Editor, Cheryl Markosky, John O'Donnell, Maicolm F Beall, Keith Howard, Victoria Hervey, Nick Gardner, Neil MacKwood, Geoffrey Wheatcroft, Charles Porter, Leo Abse, Richard Johnson, Caroline White, Stuart Wavell, Roger Eglin, Stella Bingham, Paul Donovan, Maggie Gee, Nicolette Rennison, Josephine Smith, Alastair Hendy, Matthew Pinsent, Hugh McIlvanney, Steve Boyd, James Clark Home Affairs Correspondent, Lucinda Kemeny, Jasper Gerard, Derek Clements, Michael Woodhead, Paul Driver, John Humphrys, Nick Newman, Peter Windsor, Ann McFerran, Richard Brooks, Mrs L Beicher, Ian Hawkey, Shelley Von Strunckel, Stuart Andrews, Paul Durman, Tony Baker, Richard Girling, Mark Edwards, Kirstie Hamilton, Sarah Gracie, David Rogers, Susan Clark, Dr Tanya Ritchie, Richard Simpson, Danny O'Brien, Lara Sargent, Hugo Barnacle, Dilip Raje, Simon Wilde cricket correspondent, Alan Combes, Sean Newsom, John O'donnell, Raymond Keene, Gareth Huw Davies, Senay Boztas, Cosmo Landesman, Marie Colvin, David Gerrard, Diana Wright, Kipper Williams, Andy Knott, Michael Prescott Political Editor, Stephen Jones, Stephen Bleach, Richard Evans, Nick Cain, Imogen Edwards-Jones, Peta Bee, Michael Wright, Natalie Graham, Paul Nuki, Alan Pearey, Dr Nigel D Salter, Redruth, M J, Caroline Donald, Adam Caplin, Jeremy Bamber, Rob Ryan, Pat Butcher, Lois Rogers Medical correspondent, David Walsh, Trevor Lewis, Bryan Appleyard, Lois Rogers Medical Correspondent, Stephen Armstrong, John Elliott, Paul Kavanagh, Michael Sheridan Far East Correspondent, R W Johnson, David Price, Richard Woods, Billy Elliott, Roland White, Michael Brennan, Maurice Chittenden, Alex Fortune, Chris Dale, Richard Brooks Arts Editor, David Hirst, Richard Rae, Mark Franchetti, Jonathan Powell, Ray Hutton, Martin Ivens, Frank Fitzgibbon, Susan Sachter, Tim Moovey, Jonathan Leake, M E, John Crossland, Michael Sheridan, Christine Webb, John Harlow, Godfrey Smith, Steve Milner, John Urbanek, Dipesh Gadher, Barry Collins, Humphrey Burton, John Waples, A A Gill, Tracy Mercer, Brian Glanville, David Williams, N W, Ross Mason, Tom Robbins, Harvey Jones, Sarah Curtis, Nick Fielding, Stephen Pettitt, William Cash, Margaret Kemp, Robert Johnston, Claudia Croft, Cherry Norton, R H, Sally Kinnes, Naomi Caine, Liam Clarke, Nicholas Hellen Media Editor, David Wickers, Rose Gray, Nigel Powell, Tom Rhodes, John Aizlewood, Andrew Frankel, Graham Norwood, Joe Lovejoy, Jonathan Futrell, Mark Porter, Rupert Steiner, Steve Holdsworth, Dan Cairns, Justin Wintle, Mostafa Kamal, David Parsley, Princess Anne, David Smith Economics Editor, Graham Smith Councillor, Peter Roebuck, Martin Blackburn, Andrew Woodhead, Kenneth Gray, India Knight, Joanna Simon, Amy Wilson, Steve Grant, Simon Howard, Alistair Beaton, Barry Newcombe, Lisa Verrico, Gerald Campion, Boris Schapiro,
... No 1 will go head-to-head with Sergio Garcia at Bay Hill today. By Alex Fortune ... services group Barnes Kavelle Limited BCA Book Clubs Torres & Partners Advantage West Midlands Retail Strategy Cressall Resistors ...
2001 - Gale Group | Sunday Times HA GDA
Sergio Torres‐Giner, José M. Lagarón,
Abstract This work presents the first results on the development and characterization of novel nanobiocomposite fibers prepared by electrospinning of zein/clay mixtures (from 99/1 to 75/25 wt/wt) from ethanol‐based solutions. To do so, commercial ceramic materials of different nature, such as organomodified and unmodified mica, kaolinite, montmorillonite, and zeolite were employed and compared. A significant decrease in fiber diameter was observed as the clay fraction increased in the hybrid material. ...
Tópico(s): Natural Fiber Reinforced Composites
2010 - Wiley | Journal of Applied Polymer Science
Richard T. Olsson, R. Kraemer, Amparo López‐Rubio, Sergio Torres‐Giner, M.J. Ocio, José M. Lagarón,
Electrospinning of uniform biohybrid fibers with concealed cellulose microfibrils (CMF) is reported as a promising and environmentally sound concept for reinforcement of polymer nonwoven fiber systems of fine dimensions. The extraction and refinement of the high-strength crystalline microfibril bundles (15−20 nm thick) from bacterial cellulose networks is presented, as well as their morphology prior to and post electrospinning, Nanofibers composed of a poly(methyl methacrylate) (PMMA) matrix with cellulose ...
Tópico(s): Advanced Sensor and Energy Harvesting Materials
2010 - American Chemical Society | Macromolecules
Luis Arias, Sergio Torres, Daniel Sbárbaro, Philippe Ngendakumana,
In this work, spatial–spectral experimental issues affecting the detection of radical emissions in a natural gas flame are discussed and studied by a radiometric analysis of the flame spectral emission. As results of this analysis, Local and Global Spectral Radiation Measurements (LSRM and GSRM respectively) techniques are proposed, and guidelines for selecting the radical emission bands and spatial location of photodetectors are given. Two types of experiments have been performed in order to demonstrate ...
Tópico(s): Combustion and flame dynamics
2010 - Elsevier BV | Combustion and Flame
Sergio Torres, Hermelinda Salgado‐Ceballos, Jose Torres, Sandra Orozco‐Suárez, Araceli Díaz-Ruìz, Angelina Martı́nez, Mario Rivera-Cruz, Camilo Rı́os, Alicia Lara, Carlos J Collado, Gabriel Guı́zar-Sahagún,
Disability after traumatic spinal cord injury (TSCI) results from physical trauma and from "secondary mechanisms of injury" such as low metabolic energy levels, oxidative damage and lipid peroxidation. In order to prove if early metabolic reactivation is a better therapeutic option than antioxidant therapy in the acute phase of TSCI, spinal cord contusions were performed in adult rats using a well-characterized weight drop technique at thoracic 9 level. After TSCI, pyrophosphate of thiamine or non- ...
Tópico(s): Cerebral Palsy and Movement Disorders
2009 - Wiley | Neuropathology
Sergio Torres‐Giner, M.J. Ocio, José M. Lagarón,
This paper describes the formulation, morphology and biocide properties of novel antimicrobial electrospun zein based ultrathin fiber structures. From the results, it was found that the electrospun fibers of zein can turn the material into a new strong antimicrobial ultrathin-structured system due to retention of remnant amounts of trifluoroacetic acid as determined by ATR–FTIR spectroscopy. Unfortunately, this system may be considered to yield very aggressive high acidic media due to release of ...
Tópico(s): Silk-based biomaterials and applications
2009 - Elsevier BV | Carbohydrate Polymers
Sebastián E. Godoy, Jorge E. Pezoa, Sergio Torres,
The spatial fixed-pattern noise (FPN) inherently generated in infrared (IR) imaging systems compromises severely the quality of the acquired imagery, even making such images inappropriate for some applications. The FPN refers to the inability of the photodetectors in the focal-plane array to render a uniform output image when a uniform-intensity scene is being imaged. We present a noise-cancellation-based algorithm that compensates for the additive component of the FPN. The proposed method relies ...
Tópico(s): Thermography and Photoacoustic Techniques
2008 - Optica Publishing Group | Applied Optics
Sergio Torres‐Giner, José V. Gimeno-Alcañíz, M.J. Ocio, José M. Lagarón,
Collagen, as the major structural protein of the extracellular matrix in animals, is a versatile biomaterial of great interest in various engineering applications. Electrospun nanofibers of collagen are regarded as very promising materials for tissue engineering applications because they can reproduce the morphology of the natural bone but have as a drawback a poor structural consistency in wet conditions. In this paper, a comparative study between the performance of different cross-linking methods ...
Tópico(s): Periodontal Regeneration and Treatments
2008 - American Chemical Society | ACS Applied Materials & Interfaces
César San Martín, Sergio Torres, Jorge E. Pezoa,
We have developed a recursive estimator for the offset nonuniformity (NU) present in infrared (IR) focal-plane-array (FPA) imaging systems. The estimator is optimal in the least-square error sense and estimates the offset NU using only the collected scene data. Our scene-based nonuniformity correction (NUC) method exploits Kalman's theory in order to estimate a constant in noise. The method is based upon two key assumptions: (i) the input irradiance at each detector is assumed to be a random variable ...
Tópico(s): Thermography and Photoacoustic Techniques
2008 - Elsevier BV | Infrared Physics & Technology
Luis Arias, Sergio Torres, Daniel Sbárbaro, Óscar Farías,
A nonintrusive low-cost sensor based on silicon photodiode detectors has been designed to analyze the formation and behavior of excited CH(*) and C(2)(*) radicals in the combustion process by sensing the spectral emission of hydrocarbon flames. The sensor was validated by performing two sets of experiments for both nonconfined and confined flames. For a nonconfined oil flame, the sensor responses for the axial intensity were highly correlated with the measurements obtained with a radiometer. For ...
Tópico(s): Advanced Chemical Sensor Technologies
2008 - Optica Publishing Group | Applied Optics
Avelina Fernández, Sergio Torres‐Giner, José M. Lagarón,
Tópico(s): Proteins in Food Systems
2008 - Elsevier BV | Food Hydrocolloids
Diana M. Acosta, María Rosa Arnaiz, Mónica I. Esteva, Mariana Barboza, D. Stivale, Ulises Orlando, Sergio Torres, Susana A. Laucella, Alicia S. Couto, Vilma G. Duschak,
Trypanosoma cruzi, the agent of Chagas disease contains a major cysteine proteinase, cruzipain (Cz), with an unusual carboxyl-terminal extension (C-T). We have previously reported the presence of sulfate groups in the N-linked oligosaccharide chains of this domain. In order to evaluate the immune responses to sulfated moieties on Cz, BALB/c mice were immunized with purified Cz and C-T prior and after desulfation treatment. The humoral immune response to sulfates on Cz or C-T was mainly IgG2b. Interestingly, ...
Tópico(s): Parasites and Host Interactions
2008 - Oxford University Press | International Immunology
Sergio Torres‐Giner, M.J. Ocio, José M. Lagarón,
Abstract The electrospinning technology opens up enormous possibilities for the implementation of bio‐based materials and food hydrocolloids in numerous applications. In this context, chitosan is a sustainable, biocompatible, biodegradable, antimicrobial and non‐toxic polysaccharide of great relevance in many fields of application. Because of its abundance in nature and excellent biocompatibility, the cationic polysaccharide chitosan is a very promising polymer for producing functional nanofibers. ...
Tópico(s): Silk-based biomaterials and applications
2008 - Wiley | Engineering in Life Sciences
Jonathan Sievers, C. Achermann, J. R. Bond, L. Bronfman, Ricardo Bustos, Carlo Contaldi, C. Dickinson, Pedro G. Ferreira, Michael E. Jones, Antony Lewis, B. S. Mason, J. May, S. T. Myers, N. Oyarce, S. Padin, T. J. Pearson, M.W. Pospieszalski, A. C. S. Readhead, R. Reeves, Angela C. Taylor, Sergio Torres,
We present new measurements of the power spectra of the E-mode of CMB polarization, the temperature T, the cross-correlation of E and T, and upper limits on the B-mode from 2.5 years of dedicated Cosmic Background Imager (CBI) observations. Both raw maps and optimal signal images in the uv-plane and real space show strong detections of the E-mode (11.7 sigma for the EE power spectrum overall) and no detection of the B-mode. The power spectra are used to constrain parameters of the flat tilted adiabatic ...
Tópico(s): Solar and Space Plasma Dynamics
2007 - IOP Publishing | The Astrophysical Journal
Majeed M. Hayat, Sergio Torres, Leno M. Pedrotti,
The statistics of photon coincidence counting in photon-correlated beams is thoroughly investigated considering the effect of the finite coincidence resolving time. The correlated beams are assumed to be generated using parametric downconversion, and the photon streams in the correlated beams are modeled by two partially correlated Poisson point processes. An exact expression for the mean rate of coincidence registration is developed using techniques from renewal theory. It is shown that the use ...
Tópico(s): Quantum Mechanics and Applications
1999 - Elsevier BV | Optics Communications
Majeed M. Hayat, Sergio Torres, Ernest E. Armstrong, Stephen C. Cain, Brian J. Yasuda,
A statistical algorithm has been developed to compensate for the fixed-pattern noise associated with spatial nonuniformity and temporal drift in the response of focal-plane array infrared imaging systems. The algorithm uses initial scene data to generate initial estimates of the gain, the offset, and the variance of the additive electronic noise of each detector element. The algorithm then updates these parameters by use of subsequent frames and uses the updated parameters to restore the true image ...
Tópico(s): Advanced Measurement and Detection Methods
1999 - Optica Publishing Group | Applied Optics
Ernest E. Armstrong, Majeed M. Hayat, Russell C. Hardie, Sergio Torres, Brian J. Yasuda,
It is well known that non-uniformity noise in focal-plane array (FPA) sensors, which is due to the pixel-to-pixel variation in the detectors' responses, can considerably degrade the quality of images since it results in a fixed pattern that is superimposed on the true scene. This paper addresses the benefits of non-uniformity correction (NUC) pre- processing on the performance of a number of existing post- processing algorithms. The post-processing applications considered are image registration (motion ...
Tópico(s): CCD and CMOS Imaging Sensors
1999 - SPIE | Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
Yang Liu, Simon R. Procter, Carl A. B. Pearson, Andrés Madriz Montero, Sergio Torres‐Rueda, Elias Asfaw, Benjamin Uzochukwu, Tom Drake, Eleanor Bergren, Rosalind M. Eggo, Francis Ruiz, Nicaise Ndembi, Justice Nonvignon, Mark Jit, Anna Vassall,
Abstract Background The COVID-19 vaccine supply shortage in 2021 constrained roll-out efforts in Africa while populations experienced waves of epidemics. As supply improves, a key question is whether vaccination remains an impactful and cost-effective strategy given changes in the timing of implementation. Methods We assessed the impact of vaccination programme timing using an epidemiological and economic model. We fitted an age-specific dynamic transmission model to reported COVID-19 deaths in ...
Tópico(s): SARS-CoV-2 and COVID-19 Research
2023 - BioMed Central | BMC Medicine
Pedro M. Silva, Sergio Torres‐Giner, A. A. Vicente, Miguel A. Cerqueira,
Abstract Functional materials have become key drivers in the development of multiple high‐end technologies. Electrohydrodynamic processing (EHDP) is a straightforward method to generate polymer micro‐ and nanostructures that can be applied to the food, pharmaceutical, environmental, and biomedical areas, among others, since these can yield materials with higher performance. Some of the EHDP's advantages over other polymer processing technologies rely on its high versatility, by which the final assembly ...
Tópico(s): Surface Modification and Superhydrophobicity
2022 - Wiley | Macromolecular Materials and Engineering
Eva Sánchez‐Hernández, Natalia Langa-Lomba, Vicente González García, J. Casanova, Jesús Martín‐Gil, Alberto Santiago-Aliste, Sergio Torres-Sánchez, Pablo Martín‐Ramos,
The use of nanocarriers (NCs), i.e., nanomaterials capable of encapsulating drugs and releasing them selectively, is an emerging field in agriculture. In this study, the synthesis, characterization, and in vitro and in vivo testing of biodegradable NCs loaded with natural bioactive products was investigated for the control of certain phytopathogens responsible for wood degradation. In particular, NCs based on methacrylated lignin and chitosan oligomers, loaded with extracts from Rubia tinctorum, ...
Tópico(s): Phytochemicals and Antioxidant Activities
2022 - Multidisciplinary Digital Publishing Institute | Agronomy
Enrique Terroba-Delicado, Stefano Fiori, Jaume Gomez‐Caturla, Nestor Montañés Muñoz, Lourdes Sánchez‐Nácher, Sergio Torres‐Giner,
The present work puts the Circular Bioeconomy's concept into action, originally valorizing residues of spent coffee grains from the beverage liquor coffee industry to develop green composite pieces of polylactide (PLA). The as-received spent coffee grains were first milled to obtain the so-called spent coffee grounds (SCGs) that were, thereafter, incorporated at 20 wt.% into PLA by extrusion. Finally, the resultant green composite pellets were shaped into pieces by injection molding. Moreover, two ...
Tópico(s): Nanocomposite Films for Food Packaging
2022 - Multidisciplinary Digital Publishing Institute | Foods
Eva Hernández-García, María Vargas, Sergio Torres‐Giner,
In the present study, the effectiveness of a multilayer film of polylactide (PLA), fully bio-based and compostable, was ascertained to develop a novel sustainable packaging solution for the preservation of fresh pork meat. To this end, the multilayer PLA films were first characterized in terms of their thermal characteristics, structure, mechanical performance, permeance to water and aroma vapors and oxygen, and optical properties and, for the first time, compared with two commercial high-barrier ...
Tópico(s): Food Waste Reduction and Sustainability
2022 - Multidisciplinary Digital Publishing Institute | Foods
Daniel García‐García, Luís Quiles-Carrillo, Rafael Balart, Sergio Torres‐Giner, Marina P. Arrieta,
Poly(3-hydroxybutyrate) (PHB) has gain in recent years a huge interest in the food packaging field due to its renewable origin from waste as well as non-food crops, high mechanical strength, medium-to-high barrier performance, and inherent biodegradability in natural environments. Despite these advantages, PHB also shows a narrow processing window and high brittleness since this homopolyester shows low thermal stability and high crystallinity, limiting its industrial application. The present review ...
Tópico(s): Polymer crystallization and properties
2022 - Elsevier BV | European Polymer Journal
Kaleb Acevedo-Vergara, Manuel Pérez-Florez, Andrea Ramírez Varela, Sergio Torres-Bayona, Alberto Dau, Silvia Salva, Dieb Maloof, Camilo Garcia, Melissa Luque, Hernan Felipe Guillén-Burgos,
High-grade gliomas cause cognitive impairment in those who suffer from them. However, there is a lack of precise data describing the cognitive deficit that occurs in this population, which would allow to better focus neuropsychological evaluations and make better clinical decisions in favor of the patient's recovery and quality of life. For this purpose, a systematic review of the literature was carried out to search for studies on neurocognitive alterations in patients with malignant brain tumors. ...
Tópico(s): Dementia and Cognitive Impairment Research
2022 - Elsevier BV | Clinical Neurology and Neurosurgery
Patricia Feijóo, Kerly Samaniego-Aguilar, Estefania Sánchez‐Safont, Sergio Torres‐Giner, José M. Lagarón, Jose Gámez‐Pérez, Luís Cabedo,
Poly(3-hydroxybutyrate-co-3-valerate) (PHBV), being one of the most studied and commercially available polyhydroxyalkanoates (PHAs), presents an intrinsic brittleness and narrow processing window that currently hinders its use in several plastic applications. The aim of this study was to develop a biodegradable PHA-based blend by combining PHBV with poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBH), another copolyester of the PHA family that shows a more ductile behavior. Blends of PHBV with 20% ...
Tópico(s): Additive Manufacturing and 3D Printing Technologies
2022 - Multidisciplinary Digital Publishing Institute | Polymers
Elena Gabirondo, Beatriz Meléndez-Rodríguez, Carmen Arnal, José M. Lagarón, Antxon Martı́nez de Ilarduya, Haritz Sardón, Sergio Torres‐Giner,
Poly(ethylene furanoate) (PEF) films were first produced using thermo-compression. Thereafter, the chemical recyclability was demonstrated in the presence of a thermally stable organocatalyst followed by its repolymerization.
Tópico(s): biodegradable polymer synthesis and properties
2021 - Royal Society of Chemistry | Polymer Chemistry