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      • KCI등재

        Un siglo de humor en La columna periodistica de autores gallegos: hacia una columna Ludica de autor y personaje

        ( Carlos Fernandez Gonzalez ) 한국스페인어문학회(구 한국서어서문학회) 2011 스페인어문학 Vol.0 No.61

        El proposito de este articulo es analizar el humor como recurso estilistico, retorico y narrativo (es decir, literario) en la columna periodistica. Para ello, se ha seleccionado a cuatro autores gallegos que cubren un periodo temporal cercano a un siglo, el transcurrido desde principios del siglo XX hasta la actualidad: Julio Camba, Ricardo Outeirino, Wenceslao Fernandez Florez y Manuel Jabois. Mas en concreto, el presente trabajo pretende examinar los resortes empleados por estos autores para presentar a sus lectores informacion, analisis y opinion en clave humoristica, asi como los diferentes grados de protagonismo del autor como personaje. Se procura definir, al mismo tiempo, la evolucion general experimentada por el genero proteico denominado columna (desde un esquema basico facilmente reconocible: informacion-opinion-humor) y su tendencia actual hacia lo que se propone denominar columna ludica, que otorga al humor relevancia definitiva y encuentra especificidad, ademas, en la presentacion indisimulada de su autor como personaje protagonista. Para todo ello, se opta por una aproximacion teorica transversal y eclectica, integradora, articulada en torno a ideas, conceptos y propuestas para el analisis proporcionados por la teoria de los generos literarios y de los generos periodisticos, la narratologia, la retorica y el analisis del discurso.

      • SCIESCOPUSKCI등재

        Hyaluronic acid reduces inflammation and crevicular fluid IL-1β concentrations in peri-implantitis: a randomized controlled clinical trial

        Sanchez-Fernandez, Elena,Magan-Fernandez, Antonio,O'Valle, Francisco,Bravo, Manuel,Mesa, Francisco Korean Academy of Periodontology 2020 Journal of Periodontal & Implant Science Vol.50 No.-

        Purpose: This study investigated the effects of hyaluronic acid (HA) on peri-implant clinical variables and crevicular concentrations of the proinflammatory biomarkers interleukin (IL)-1β and tumor necrosis factor (TNF)-α in patients with peri-implantitis. Methods: A randomized controlled trial was conducted in peri-implantitis patients. Patients were randomized to receive a 0.8% HA gel (test group), an excipient-based gel (control group 1), or no gel (control group 2). Clinical periodontal variables and marginal bone loss after 0, 45, and 90 days of treatment were assessed. IL-1β and TNF-α levels in crevicular fluid were measured by enzyme-linked immunosorbent assays at baseline and after 45 days of treatment. Clustering analysis was performed, considering the possibility of multiple implants in a single patient. Results: Sixty-one patients with 100 dental implants were assigned to the test group, control group 1, or control group 2. Probing pocket depth (PPD) was significantly lower in the test group than in both control groups at 45 days (control 1: 95% CI, -1.66, -0.40 mm; control 2: 95% CI, -1.07, -0.01 mm) and 90 days (control 1: 95% CI, -1.72, -0.54 mm; control 2: 95% CI, -1.13, -0.15 mm). There was a trend towards less bleeding on probing in the test group than in control group 2 at 90 days (P=0.07). Implants with a PPD ≥5 mm showed higher levels of IL-1β in the control group 2 at 45 days than in the test group (P=0.04). Conclusions: This study demonstrates for the first time that the topical application of a HA gel in the peri-implant pocket and around implants with peri-implantitis may reduce inflammation and crevicular fluid IL-1β levels.

      • KCI등재후보

        Understanding Current Issues in Research and Education in Science and Technology: A Framework of Knowledge and Action Sharing between Universities and Science and Technology Parks

        Fernandez, Ramon Emilio,Ferguson, David L. World Technopolis Association 2017 World Technopolis Review Vol.6 No.1

        Humanity is experiencing a very fast-paced technological evolution. As technological systems evolve exponentially, societies are becoming more global and are starting to have impacts beyond their geographic demarcations. This implies that, the actions of a person who is across the ocean from where we live could have significant impacts on our everyday lives. This article explores the complexity of globalization, identifies a number of global issues, and looks at the University and the Science and Technology Parks as potential sources of human capital to tackle current and forthcoming global challenges, ranging from new energy sources to potable water distributions. The article focuses on current efforts that are taking place across universities and science and technology parks around the world. We propose a new methodology whereby interdisciplinary work can inform the development of multidisciplinary approaches to solve some of the most complex global issues such as cyber security and educating the next generations of global leaders, providing them them with the necessary skills to be successful in a globally distributed workforce.

      • Identification of duck IL-4 and its inhibitory effect on IL-17A expression in <i>R. anatipestifer-</i>stimulated splenic lymphocytes

        Fernandez, Cherry P.,Afrin, Fahmida,Flores, Rochelle A.,Kim, Woo H.,Jeong, Jipseol,Kim, Suk,Lillehoj, Hyun S.,Min, Wongi Elsevier 2018 Molecular immunology Vol.95 No.-

        <P>As the dysregulation of IL-17 is implicated in the pathogenesis of various autoimmune and inflammatory diseases, the suppression of IL-17 production by Th2 cytokines could alleviate the development of these diseases. Previously, we confirmed that inflammatory cytokines including IL-17A are strongly associated with R. anatipestifer infection, which is one of the most important bacterial pathogens in the duck industry. Here, we found that IL-4 treatment downregulated the expression of IL-17A and IL-17F transcripts in splenic lymphocytes stimulated with R. anatipestifer. Moreover, duck IL-4 (duIL-4) treatment in R. anatipestifer-stimulated lymphocytes suppressed the expression of IL-23p19 and IL-12p40 transcripts compared to untreated and stimulated lymphocytes. Conversely, dulL-4 increased levels of IFN-gamma and IL-10. We identified a full-length dulL-4 cDNA encoding 136 amino acids from ConA-activated splenic lymphocytes that shares 49.3-50% amino acid sequence identity with chicken and quail IL-4 and 21-29.7% with mammalian and piscine homologues. Low or moderate levels of dulL-4 transcript were observed in healthy tissues, including the spleen, bursa, and thymus, whereas dulL-4 expression was higher in the kidney and lung. Levels of dulL-4 were generally upregulated in mitogen-activated splenic lymphocytes but lower in the liver and spleen of R. anatipestifer-infected ducks compared to those of infected chickens. Recombinant dulL-4 promoted nitric oxide synthesis in duck macrophages stimulated by It anatipestifer compared to untreated and stimulated control macrophages. These results demonstrate that IL-4 is an important Th2 cytokine that inhibits inflammatory responses in splenic lymphocytes stimulated with R. anatipestifer.</P>

      • Ascent - Challenges and Advances of Tall Mass Timber Construction

        Fernandez, Alejandro,Komp, Jordan,Peronto, John Council on Tall Building and Urban Habitat Korea 2020 International journal of high-rise buildings Vol.9 No.3

        Ascent, a 25 story residential tower located in Milwaukee, WI (USA), will become the tallest timber building in the world upon completion. This paper discusses the project's structural system, permit process, groundbreaking project specific testing, and several of the challenges the team overcame, all of which open the door to future Mass Timber projects; particularly in the United States.

      • SCISCIESCOPUS

        Downregulation of inflammatory cytokines by berberine attenuates <i>Riemerella anatipestifer</i> infection in ducks

        Fernandez, Cherry P.,Afrin, Fahmida,Flores, Rochelle A.,Kim, Woo H.,Jeong, Jipseol,Kim, Suk,Chang, Hong H.,Lillehoj, Hyun S.,Min, Wongi PERGAMON 2017 DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY Vol. No.

        <P><B>Abstract</B></P> <P> <I>Riemerella anatipestifer,</I> an important infectious bacterium affecting the duck industry, has 5–75% mortality, depending on strain virulence. We previously demonstrated that proinflammatory cytokines are involved in inflammation during, and regulating susceptibility to, <I>R. anatipestifer</I> infection. We investigated the effects of the anti-inflammatory compound berberine in duck splenic lymphocytes stimulated with killed <I>R. anatipestifer,</I> and in <I>R. anatipestifer-</I>infected ducks. IL-17A, IL-17F, and IL-1β transcripts were downregulated, and IFN-γ and IL-10 transcripts enhanced, in berberine-treated stimulated splenic lymphocytes, compared to stimulated untreated splenic lymphocytes. Similarly, IL-17A, IL-17F, IL-6, and IL-1β expressions were significantly reduced, and IFN-γ and IL-10 expressions significantly upregulated, in spleens and livers of <I>R. anatipestifer-</I>infected berberine-treated ducks, compared to infected untreated birds. Moreover, infected and treated birds showed increased survival rates and significantly decreased bacterial burdens compared to infected untreated birds, confirming that inflammatory cytokines are strongly associated with <I>R. anatipestifer</I> infection in ducks.</P> <P><B>Highlights</B></P> <P> <UL> <LI> <I>R. anatipestifer</I> infection is ameliorated by inflammatory cytokine suppression. </LI> <LI> Expression levels of IL-17A, IL-17F, IL-1β or IL-6 mRNA were significantly reduced by berberine treatment. </LI> <LI> Expression of anti-inflammatory cytokine IL-10 was enhanced <I>in vitro</I> and <I>in vivo.</I> </LI> <LI> Berberine-treated infected ducks had lower mortality rate and bacterial load. </LI> </UL> </P>

      • SCOPUSKCI등재

        Explaining the Drift Behavior of Caffeine and Glucosamine After Addition of Ethyl Lactate in the Buffer Gas of an Ion Mobility Spectrometer

        Fernandez-Maestre, Roberto,Velasco, Andres Reyes,Hill, Herbert H. Korean Chemical Society 2014 Bulletin of the Korean Chemical Society Vol.35 No.4

        Protonated caffeine ($CH^+$) and glucosamine ($GH^+$) overlapped in an analysis with ion mobility spectrometryquadrupole mass spectrometry. Ethyl lactate vapor (L) at different concentrations from 0 to 22 mmol $m^{-3}$ was added as a buffer gas modifier to separate these signals. The drift times of $CH^+$ and $GH^+$ increased with L concentration. The drift time increase was associated to clustering equilibria of $CH^+$ and $GH^+$ with one molecule of L and the equilibrium of $GH^+$ was more displaced to the formation of $GLH^+$ than that of $GLH^+$. $GH^+$ clustered more to L than $CH^+$ because $GLH^+$ formed more stable hydrogen bonds (26.30 kcal/mol) than $GLH^+$ (24.66 kcal/mol) and the positive charge in $GH^+$ was more sterically accessible than in $CH^+$. The aim of this work was to use theoretical calculations to guide the selection of a buffer gas modifier for IMS separations of two compounds that overlap in the mobility spectra and predict this separation, simplifying that empirical process.

      • Continuous-wave upconverting nanoparticle microlasers

        Fernandez-Bravo, Angel,Yao, Kaiyuan,Barnard, Edward S.,Borys, Nicholas J.,Levy, Elizabeth S.,Tian, Bining,Tajon, Cheryl A.,Moretti, Luca,Altoe, M. Virginia,Aloni, Shaul,Beketayev, Kenes,Scotognella, F Nature Publishing Group UK 2018 Nature nanotechnology Vol.13 No.7

        Reducing the size of lasers to microscale dimensions enables new technologies<SUP>1</SUP> that are specifically tailored for operation in confined spaces ranging from ultra-high-speed microprocessors<SUP>2</SUP> to live brain tissue<SUP>3</SUP>. However, reduced cavity sizes increase optical losses and require greater input powers to reach lasing thresholds. Multiphoton-pumped lasers<SUP>4–7</SUP> that have been miniaturized using nanomaterials such as lanthanide-doped upconverting nanoparticles (UCNPs)<SUP>8</SUP> as lasing media require high pump intensities to achieve ultraviolet and visible emission and therefore operate under pulsed excitation schemes. Here, we make use of the recently described energy-looping excitation mechanism in Tm<SUP>3+</SUP>-doped UCNPs<SUP>9</SUP> to achieve continuous-wave upconverted lasing action in stand-alone microcavities at excitation fluences as low as 14 kW cm<SUP>−2</SUP>. Continuous-wave lasing is uninterrupted, maximizing signal and enabling modulation of optical interactions<SUP>10</SUP>. By coupling energy-looping nanoparticles to whispering-gallery modes of polystyrene microspheres, we induce stable lasing for more than 5 h at blue and near-infrared wavelengths simultaneously. These microcavities are excited in the biologically transmissive second near-infrared (NIR-II) window and are small enough to be embedded in organisms, tissues or devices. The ability to produce continuous-wave lasing in microcavities immersed in blood serum highlights practical applications of these microscale lasers for sensing and illumination in complex biological environments.

      • KCI등재

        Effects of hafnium on the structural, optical and ferroelectric properties of sol–gel synthesized barium titanate ceramics

        Fernandez Jude,Bindhu B.,Prabu M.,Sandhya K. Y. 한국세라믹학회 2022 한국세라믹학회지 Vol.59 No.2

        For future electronic devices, barium titanate based multifunctional ceramics falling under the category of ABO 3 perovskite type rose to prominence among scientists and engineers around the world. Moreover, the remarkable properties can be tuned by a strategy known as doping. The synthesis of hafnium (Hf 4+ ) doped BaHf x Ti (1- x ) O 3 , x = 0.00, 0.05, 0.10, 0.15 ceramics based on a wet chemical technique known as sol–gel, where the total time and temperature required for complete phase for- mation is considerably less, is reported in this article. The formation of a well-defined crystal structure with tetragonal phase showing P4mm space group was confirmed for BaHf x Ti (1- x ) O 3 ceramics calcined at 1000 °C using Raman spectroscopy and X-ray diff raction (XRD). The calcined powders consisting of grains with polyhedral shapes possessed particle sizes ranging from 160 to 460 nm. A signifi cant peak corresponding to metal oxide formation was obtained at 565  cm −1 for all the composi- tions in Fourier transform infrared (FTIR) spectra, proving the existence of the required perovskite phase. A minor variation in band gap energy with increase in Hafnium (Hf 4+ ) was found out using Ultraviolet–Visible-near-IR (UV–Visible-NIR) spectroscopy. Photoluminescence (PL) spectrum analysis, put forward the possibility of slight disorders in the ceramics; nonetheless, the spectra were found to be composed of peaks corresponding to blue, red and green emissions. The remnant polarization ( P r ), saturation polarization ( P s ) and coercive electric field ( E c ) of BaHf x Ti (1- x ) O 3 , calculated from ferroelectric hysteresis loop were found to vary appreciably with corresponding rise in hafnium (Hf 4+ ) concentration.

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