Nonlinear waves in a chain of magnetically coupled pendula

A motivation for the study of reduced models like one-dimensional systems in Solid State Physics is the complexity of the full problem. In recent years our group has studied theoretically, numerically and experimentally wave propagation in lattices of nonlinearly coupled oscillators. Here, we present the dynamics of magnetically coupled pendula lattices. These macroscopic systems can model the dynamical processes of matter or layered systems. We report the results obtained for harmonic wave propagation in these media, and the different regimes of mode conversion into higher harmonics strongly influenced by dispersion and discreteness, including the phenomenon of acoustic dilatation of the chain, as well as some results on the propagation of localized waves i.e., solitons and kinks.Generalitat Valenciana APOSTD/2017/042Umiversitat Politècnica de València PAID-01-14Ministerio de Economía y Competitividad (MINECO), Spain FIS2015-65998-C2-2-PJunta de Andalucía 2017/FQM-28

Ultradiscrete kinks with supersonic speed in a layered crystal with realistic potentials

We develop a dynamical model of the propagating nonlinear localized excitations, supersonic kinks, in the cation layer in a silicate mica crystal. We start from purely electrostatic Coulomb interaction and add the Ziegler-Biersack-Littmark short-range repulsive potential and the periodic potential produced by other atoms of the lattice. This approach allows the construction of supersonic kinks which can propagate in the lattice within a large range of energies and velocities. The interparticle distances in the lattice kinks with high energy are physically reasonable values. The introduction of the periodic lattice potential results in the important feature that the kinks propagate with a single velocity and a single energy which are independent on the excitation conditions. The found kinks are ultra-discrete and can be described with the "magic wave number" $q\simeq 2\pi/3a$, which was previously revealed in the nonlinear sinusoidal waves and supersonic kinks in the Fermi-Pasta-Ulam lattice. The extreme discreteness of the supersonic kinks, with basically two particles moving at the same time, allows the interpretation of their double-kink structure. The energy of the supersonic kinks is between the possible source of $^{40}$K recoil in beta decay and the energy necessary for the ejection of an atom at the border as has been found experimentally.Comment: 14 pages, 15 figure

Anti-Ro52/TRIM21 antibodies are associated with aberrant inflammatory circuits in patients with systemic autoimmune rheumatic diseases

INTRODUCTION: Anti-Ro52/TRIM21 antibodies are markers for several systemic autoimmune rheumatic diseases (SARD). OBJECTIVE: To assess whether anti-Ro52/TRIM21 antibodies are related to abnormalities in inflammatory circuits. METHODS: Cross-sectional study of consecutive outpatients with SARD. Anti-Ro52/TRIM21 antibodies and serum amyloid A protein were measured by ELISA; panels for 18 cytokines and nine chemokines were analyzed on a Luminex reading platform, while high-sensitivity C-reactive protein (hs-CRP) and complement were measured by nephelometry. RESULTS: Among 167 included patients, 143 had systemic lupus erythematosus (SLE), 16 had primary Sjögren's syndrome and eight had systemic sclerosis; 41 (24%) were positive for anti-Ro52/TRIM21 antibodies. Patients with anti-Ro52/TRIM21 antibodies had higher serum levels of IL-2, IL-4, IL-6, GM-CSF, IL-21, IL-22, hs-CRP and chemokines CCL4, CXCL8, CXCL10 and CXCL12, but lower levels of complement C4. Anti-Ro52/TRIM21 antibody titers were positively correlated with IL-2, IL-4, IL-6, IL-10, IL-21, IL-22, CXCL10, and hs-CRP, and negatively with complements C3 and C4. When only SLE patients were included, no association was identified between anti-Ro52/TRIM21 antibodies and disease activity or organ-specific involvement. CONCLUSIONS: Anti-Ro52/TRIM21 antibodies are associated with aberrant cytokine circuits and elevated levels of angiogenic molecules and neutrophil and monocyte chemoattractants, which suggests an active role for these antibodies in SARD.</p

A new species of Torrestrongylus (Trichostrongylidae, Anoplostrongylinae) from Macrotus waterhousii (Chiroptera: Phyllostomidae) in Central Mexico

A new species of nematode, Torrestrongylus tetradorsalis n. sp., is described herein, based on specimens recovered from the small intestine of the leaf-nosed bat, Macrotus waterhousii, from the Biosphere Reserve “Sierra de Huautla” in the state of Morelos, Mexico. The new species is included in Torrestrongylus because it features a bursa of the type 3 – 2, a divided cephalic vesicle with an anterior half in the shape of an umbrella, and a posterior widened half. The new species can be distinguished from the only other congener T. torrei Pérez-Vigueras, 1935 by four key features: first, by the absence of cervical alae in both males and females; second, by the relatively longer second half of the cephalic cap; third, by the configuration of the dorsal ray, that does not have a medial terminal ray, and finally, by the structure of the spicules. This is the second species in the genus, previously known from bats of the families Phyllostomidae and Molossidae in Cuba, and now in Mexico

Quodons in Mica 2013

Quodons in Mica 2013 INDEX 1. Introduction. 3. JFR Archilla, SMM Coelho, FD Auret, V Dubinko and V Hizhnyakov. Experimental observation of moving discrete breathers in germanium. 5. L Brzihik. Bisolectrons in harmonic and anharmonic lattices. 6. AP Chetverikov. Solitons and charge transport in triangular and quadratic Morse lattices. 7. LA Cisneros-Ake. Travelling coherent structures in the electron transport in 2D anharmonic crystal lattices. 8. SMM Coelho, FD Auret, JM Nel and JFR Archilla. The origin of defects induced in ultra-pure germanium by Electron Beam Deposition. 10. S Comorosan and M Apostol. Theory vs. Reality - Localized excitations induced by optical manipulation of proteins, as a different approach to link experiments with theory. 12. L Cruzeiro. The amide I band of crystalline acetanilide: old data under new light. 13. SV Dmitriev and AA Kistanov. Moving discrete breathers in crystals with NaCl structure. 15. V Dubinko, JFR Archilla, SMM Coelho and V Hizhnyakov. Modeling of the annealing of radiation-induced defects in germanium by moving discrete breathers. 16. JC Eilbeck. Numerical simulations of nonlinear modes in mica: past, present and future. 17. A Ferrando, C Mili\'an, DE Ceballos-Herrera and Dmitry V. Skryabin. Soliplasmon resonances at metal-dielectric interfaces. 19. YuB Gaididei. Energy localization in nonlinear systems with flexible geometry. 20. D Hennig. Existence and non-existence of breather solutions in damped and driven nonlinear lattices. 21. P Jason and M Johansson. Existence, dynamics and mobility of Quantum Compactons in an extended Bose-Hubbard model. 22. N. Jiménez, JFR Archilla, Y. Kosevich, V. Sánchez-Morcillo and LM García-Raffi. A crowdion in mica. Between K40 recoil and transmission sputtering. 24. M Johansson. Strongly localized moving discrete solitons (breathers): new ways to beat the Peierls-Nabarro barrier. 26. YA Kosevich and AV Savin. Energy transport in molecular chains with combined anharmonic potentials of pair interatomic interaction. 28. B Malomed, C Mejía-Cortés and RA Vicencio. Mobile discrete solitons in the one-dimensional lattice with the cubic-quintic nonlinearity. 29. FM Russell. Recording process in iron-rich muscovite crystals. 30. L Salasnich. Bright solitons of attractive Bose-Einstein condensates confined in quasi-1D optical lattice. 31. V Sánchez-Morcillo, LM, Garcíaa-Raffi, V. Romero-Garcíaa, R. Picó, A. Cebrecos, and Kestutis Staliunas. Wave localization in chirped sonic crystals. 32. P Selyschev, V Sugakov and T Didenko. Peculiarities of the change of temperature and heat transfer under irradiation. 33. K Staliunas. Taming of Modulation Instability: Manipulation, and Complete Suppression of Instability by Spatio-Temporal Periodic Modulation. 34. G Tsironis. Gain-Driven Breathers in PT-Symmetric Metamaterials. 36. JAD Wattis and IA Butt. Moving breather modes in two-dimensional lattices.Ministerio de Ciencia e Innovación FIS2008-0484

Feasible glass-melting process assisted by microwaves

This is the peer reviewed version of the following article: Reinosa, JJ, García-Baños, B, Catalá-Civera, JM, López-Buendía, AM, Guaita, L, Fernández, JF. Feasible glass-melting process assisted by microwaves. Int J Appl Glass Sci. 2019; 10: 208 219, which has been published in final form at https://doi.org/10.1111/ijag.13093. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.[EN] The advantages of microwave (MW) energy processing have been verified in the sintering of a ceramic frit at a pre-industrial scale. The challenge of achieving high temperature using MW energy at such dimensions was overcome and a mix of natural raw materials was heated until its fluxing point. Changes in dielectric properties of the raw materials mix were also measured in situ with the increase in temperature, being in accordance to thermal processes of a conventional heating process. The properties of the resulting ceramic frit were compared with the same frit obtained by the conventional sintering method. Both frits showed similar thermal behavior regarding DTA-TGA, heating microscopy and XRD (only glassy phase was present). A Raman study confirms the existence of the mentioned glass phase. The application of the frits as glazes were performed and their properties were studied. As a result, glazes with similar properties were obtained which confirms that the MW energy processed frit is suitable for its application as a ceramic glaze.Consejo Superior de Investigaciones Cientificas, Grant/Award Number: CSIC201560E068; Ministerio de Ciencia, Tecnologia e Innovacion Productiva, Grant/Award Number: MAT2017-86450-C4-1-R; Seventh Framework Programme, Daphne Project, Grant/Award Number: 314636Jiménez Reinosa, J.; García-Baños, B.; Catalá Civera, JM.; López-Buendía, ÁM.; Guaita, L.; Fernández, JF. (2019). Feasible glass-melting process assisted by microwaves. International Journal of Applied Glass Science. 10(2):208-219. https://doi.org/10.1111/ijag.13093S20821910

The experience of inflammatory bowel disease patients with healthcare: A survey with the IEXPAC instrument

Inflammatory bowel disease; Patients experience; Chronic diseaseMalaltia intestinal inflamatòria; Experiència dels pacients; Malalties cròniquesEnfermedad intestinal inflamatoria; Experiencia de los pacientes; Enfermedades crónicasTo assess inflammatory bowel disease (IBD) patients' experience of chronic illness care and the relationship with demographic and healthcare-related characteristics.This cross-sectional survey used the Instrument to Evaluate the EXperience of PAtients with Chronic diseases (IEXPAC) questionnaire to identify parameters associated with a better healthcare experience for IBD patients. IEXPAC questionnaire responses are grouped into 3 factors - productive interactions, new relational model, and patient self-management, scoring from 0 (worst) to 10 (best experience). Scores were analyzed by bivariate comparisons and multiple linear regression models.Surveys were returned by 341 of 575 patients (59.3%, mean age 46.8 (12.9) years, 48.2% women). Mean (SD) IEXPAC score was 5.9 (2.0); scores were higher for the productive interactions (7.7) and patient self-management factors (6.7) and much lower for the new relational model factor (2.2). Follow-up by a nurse, being seen by the same physician, and being treated with a lower number of medicines were associated with higher (better) overall patient experience score, and higher productive interactions and self-management factor scores. A higher productive interactions score was also associated with patients receiving medication subcutaneously or intravenously. Higher new relational model scores were associated with follow-up by a nurse, affiliation to a patients' association, receiving help from others for healthcare, a lower number of medicines and a higher educational level.In patients with IBD, a better overall patient experience was associated with follow-up by a nurse, being seen by the same physician, and being treated with a lower number of medicines

AMMO-Prot: amine system project 3D-model finder

BACKGROUND: Amines are biogenic amino acid derivatives, which play pleiotropic and very important yet complex roles in animal physiology. For many other relevant biomolecules, biochemical and molecular data are being accumulated, which need to be integrated in order to be effective in the advance of biological knowledge in the field. For this purpose, a multidisciplinary group has started an ontology-based system named the Amine System Project (ASP) for which amine-related information is the validation bench. RESULTS: In this paper, we describe the Ontology-Based Mediator developed in the Amine System Project (http://asp.uma.es) using the infrastructure of Semantic Directories, and how this system has been used to solve a case related to amine metabolism-related protein structures. CONCLUSIONS: This infrastructure is used to publish and manage not only ontologies and their relationships, but also metadata relating to the resources committed with the ontologies. The system developed is available at http://asp.uma.es/WebMediator