A Continuous Analogue of Lattice Path Enumeration: Part II

Here are exhibited some additional results about the continuous binomial coefficients as introduced by L. Cano and R. Diaz in [1].Comment: second versio

Formaciones boscosas en Sierra Morena oriental (Andalucía, España).

En el presente trabajo se estudia la fitosociología de los bosques localizados en Sierra Morena Oriental (comarca de Andújar, Jaén, Andalucía), comentando las siguientes asociaciones: Pyre bourgaeanae-Quercetum rotundifoliae Rivas Martínez 1987 (de la que se proponen como nuevas la subas. quercetosum fugineae Velasco ex Cano & Valle y myrtetosum communi.s Cano & Valle); Sanguisorbo agrimonioidis-Quercetum suberis Rivas Goday 1959 y Arbolo unedonis-Quercetum pyrenaicae Rivas Goday ex Rivas Martínez 1987, de la que se describe como nueva la subas. blechnetosum spicantis Cano & Valle.In this paper we have studied the phytosociology of the forests wich are located in east Sierra Morena (Jaén, Andalucía), proposing the following syntaxa as new: Pyre bourgaeanae-Quercetum rotundifoliae Rivas Martínez 1987 subas. quercetosum fagineae Velasco ex Cano & Valle and myrtetosum communis Cano & Valle, and Arbuto unedonis-Quercetum pyrenaicae Rivas Goday ex Rivas Martínez 1987 subas. blechnetosum spicantis Cano & Valle

Engineering SU(2) invariant spin models to mimic quantum dimer physics on the square lattice

We consider the spin-1/2 hamiltonians proposed by Cano and Fendley [J. Cano and P. Fendley, Phys. Rev. Lett. 105, 067205 (2010)] which were built to promote the well-known Rokshar-Kivelson (RK) point of quantum dimer models to spin-1/2 wavefunctions. We first show that these models, besides the exact degeneracy of RK point, support gapless spinless excitations as well as a spin gap in the thermodynamic limit, signatures of an unusual spin liquid. We then extend the original construction to create a continuous family of SU(2) invariant spin models that reproduces the phase diagram of the quantum dimer model, and in particular show explicit evidences for existence of columnar and staggered phases. The original models thus appear as multicritical points in an extended phase diagram. Our results are based on the use of a combination of numerical exact simulations and analytical mapping to effective generalized quantum dimer models.Comment: 12 pages, 8 figure

Three new species of Chrysina Kirby (Coleoptera: Scarabaeidae; Rutelinae) from Guatemala and Mexico

Three new species of Chrysina Kirby are described: C. baileyana from Guatemala, and C. hawksi and C. giesberti from Guatemala and Mexico. Also the females of C. centralis (Morón), C. guatemalensis (Monzón, Cano and Bailey) and C. tecunumani (Cano and Morón) are described. Se describen tres especies nuevas de Chrysina Kirby: C. baileyana de Guatemala, y C. hawksi y C. giesberti de Guatemala y Mexico. Se describen las hembras de C. centralis (Morón), C. guatemalensis (Monzón, Cano y Bailey) y C. tecunumani (Cano y Morón)

A Case of Urogenital Human Schistosomiasis from a Non-endemic Area

© 2015 Calvo-Cano et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. The attached file is the published version of the article

Erratum to Cano (2018): A new \u3ci\u3eAnomiopus\u3c/i\u3e Westwood (Coleoptera: Scarabaeidae: Scarabaeinae) from the Mayan Biosphere Reserve, Petén, Guatemala

After publication of Cano (2018), it was noticed that the wrong holotype photographs of Anomiopus cirulito Cano were included in Figure 3, resulting in images that did not correspond to the captions. The author and the Insecta Mundi editorial staff apologize for this error. The intended version of Figure 3 is reproduced here. Insecta Mundi has also released a revised version of the Cano (2018) manuscript, with this error corrected. However, the revised version is not an official peer-reviewed article, and anyone wishing to reference the findings of Cano (2018) should cite the original manuscript or this erratum

Conjugated Polymers for Organic Electronics: Structural and Electronic Characteristics

The use of organic materials to design electronic devices has actually presented a broad interest for because they constitute an ecological and suitable resource for our current "electronic world". These materials provide several advantages (low cost, light weight, good flexibility and solubility to be easily printed) that cannot be afforded with silicium. They can also potentially interact with biological systems, something impossible with inorganic devices. Between these materials we can include small molecules, polymers, fullerenes, nanotubes, graphene, other carbon-based molecular structures and hybrid materials. Actually these materials are being used to build electronic structures into electronic devices, like organic light-emitting diodes (OLEDs), organic solar cells (OSCs), and organic field-effect transistors (OFETs), constituting and already commercial reality. Some of them are used on a widespread basis1, and are the focus of some recent researches in molecules2,3 and polymers4-6 suitable for these purposes. In this study we analyze the electronic and molecular characteristics of some different π-conjugated structures in order to evaluate their potential as semiconducting materials for organic electronics. For this purpose we focus on the study of conjugated polymers with different backbones configurations: (i) donor-acceptor configuration, (ii) 1D lineal or 2D branched conjugated backbones, and (iii) encapsulated polymers. To achieve this goal, we use a combined experimental and theoretical approach that includes electronic spectroscopies (i.e., absorption, emission and microsecond transient absorption), vibrational Raman spectroscopy and DFT calculations. These structural modifications are found to provoke a strong impact on the HOMO and LUMO levels and the molecular morphology, and, consequently, on their suitability as semiconductors in organic electronic applications.References 1. S. R. Forrest, M. E. Thompson. Chem. Rev., 2007, 107, 923 2. R. C. González-Cano, G. Saini, J. Jacob, J. T. López Navarrete, J. Casado and M. C. Ruiz Delgado. Chem. Eur. J. 2013, 19, 17165 3. J. L. Zafra, R. C. González-Cano, M. C. Ruiz Delgado, Z. Sun, Y. Li, J. T. López Navarrete, J. Wu and J. Casado. J. Chem. Phys. , 2014, 140, 054706 4. M. Goll, A. Ruff, E. Muks, F. Goerigk, B. Omiecienski, I. Ruff, R. C. González-Cano, J. T. López Navarrete, M. C. Ruiz Delgado, S. Ludwigs. Beilstein J. Org. Chem., 2015, 11, 335. 5. D. Herrero-Carvajal, A. de la Peña, R. C. González-Cano, C. Seoane, J. T. López Navarrete, J. L. Segura, J. Casado, M. C. Ruiz Delgado, J. Phys. Chem. C, 2014, 118, 9899. 6. M. Scheuble, Y. M. Gross, D. Trefz, M. Brinkmann, J. T. López Navarrete, M. C. Ruiz Delgado, and S. Ludwigs, Macromolecules, 2015, 48, 7049.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Erratum to Cano (2018): A new \u3ci\u3eAnomiopus\u3c/i\u3e Westwood (Coleoptera: Scarabaeidae: Scarabaeinae) from the Mayan Biosphere Reserve, Petén, Guatemala

After publication of Cano (2018), it was noticed that the wrong holotype photographs of Anomiopus cirulito Cano were included in Figure 3, resulting in images that did not correspond to the captions. The author and the Insecta Mundi editorial staff apologize for this error. The intended version of Figure 3 is reproduced here. Insecta Mundi has also released a revised version of the Cano (2018) manuscript, with this error corrected. However, the revised version is not an official peer-reviewed article, and anyone wishing to reference the findings of Cano (2018) should cite the original manuscript or this erratum

Plasma Vascular Endothelial Growth Factor Concentration and Alveolar Nitric Oxide as Potential Predictors of Disease Progression and Mortality in Idiopathic Pulmonary Fibrosis.

BACKGROUND: Declining lung function signifies disease progression in idiopathic pulmonary fibrosis (IPF). Vascular endothelial growth factor (VEGF) concentration is associated with declining lung function in 6 and 12-month studies. Alveolar nitric oxide concentration (CANO) is increased in patients with IPF, however its significance is unclear. This study investigated whether baseline plasma VEGF concentration and CANO are associated with disease progression or mortality in IPF. METHODS: 27 IPF patients were studied (maximum follow-up 65 months). Baseline plasma VEGF concentration, CANO and pulmonary function tests (PFTs) were measured. PFTs were performed the preceding year and subsequent PFTs and data regarding mortality were collected. Disease progression was defined as one of: death, relative decrease of ≥10% in baseline forced vital capacity (FVC) % predicted, or relative decrease of ≥15% in baseline single breath diffusion capacity of carbon monoxide (TLCO-SB) % predicted. RESULTS: Plasma VEGF concentration was not associated with progression-free survival or mortality. There was a trend towards shorter time to disease progression and death with higher CANO. CANO was significantly higher in patients with previous declining versus stable lung function. CONCLUSION: The role of VEGF in IPF remains uncertain. It may be of value to further investigate CANO in IPF. KEYWORDS: alveolar nitric oxide; idiopathic pulmonary fibrosis; vascular endothelial growth facto