Desarrollo territorial en contextos urbanos y regionales

En los primeros años de la segunda década del siglo XXI es cada vez más claro que el desarrollo tan pretendido y tan distante para la mayoría de las naciones no puede ser cabalmente comprendido si se le desliga del factor territorio; evidentemente, no existe una receta única e infalible para alcanzar el desarrollo; por el contrario, todas las recetas han mostrado su falibilidad en alguna localidad concretas, lo cual puede tomarse como notable manifestación de que a cada territorio le correspondería una prescripción determinada para buscar el desarrollo a partir de una combinación específica de factores endógenos y exógenos. Una de las precisiones que se han alcanzado en el entendimiento del desarrollo, que aún genera ciertos desencuentros en el ámbito del discurso político, consiste en la distinción entre crecimiento económico y desarrollo, que además incluye el grado en el que las sociedades tienen acceso de manera equitativa a mejores condiciones de educación, salud o esperanza de vida. Los organismos internacionales han diseñado indicadores como el Índice de Desarrollo Humano (IDH), el cual incluye elementos como los mencionados, y que se ha utilizado como un referente que permite comparar los diferentes grados en los que se encuentran las naciones.Desde 2008 a la fecha, la Facultad de Planeación Urbana y Regional de la UAEMEX y la División de Ciencias e Ingeniería de la UQROO han realizado anualmente el Seminario de Investigación. En 2010, se llevó a cabo en la ciudad de Toluca; los materiales presentados se reúnen en este volumen a fin de integrar una diversidad de temas sobre Geografía y Desarrollo Territorial, Turismo y Desarrollo Territorial, y Crecimiento Urbano y Planificación Regional. Estoy convencido de que los especialistas, académicos, estudiantes y población en general, encontrarán en estos trabajos un rico acervo sobre el desarrollo territorial y los esfuerzos para encontrar respuestas en torno al turismo, al crecimiento urbano y a la planificación regional de México. La colaboración académica entre las dos instituciones está dando frutos tangibles como esta publicación, que ofrece respuestas académicas a problemas actuales del desarrollo territorial de Quintana Roo y del Estado de México

Deciphering the H-Bonding Preference on Nucleoside Molecular Recognition through Model Copper(II) Compounds

The synthetic nucleoside acyclovir is considered an outstanding model of the natural nucleoside guanosine. With the purpose of deepening on the influence and nature of non-covalent interactions regarding molecular recognition patterns, three novel Cu(II) complexes, involving acyclovir (acv) and the ligand receptor N-(2-hydroxyethyl)ethylenediamine (hen), have been synthesized and thoroughly characterized. The three novel compounds introduce none, one or two acyclovir molecules, respectively. Molecular recognition has been evaluated using single crystal X-ray diffraction. Furthermore, theoretical calculations and other physical methods such as thermogravimetric analysis, infrared and UV-Vis spectroscopy, electron paramagnetic resonance and magnetic measurements have been used. Theoretical calculations are in line with experimental results, supporting the relevance of the [metal-N7(acv) + H-bond] molecular recognition pattern. It was also shown that (hen)O-H group is used as preferred H-donor when it is found within the basal coordination plane, since the higher polarity of the terminal (hen)O-H versus the N-H group favours its implication. Otherwise, when (hen)O-H occupies the distal coordination site, (hen)N-H groups can take overThis research was funded by Agencia Estatal de Investigación, Ministerio de Ciencia, Innovación y Universidades (MICIU) from Spain and co-funded with FEDER-EU (Projects No. PGC2018-102047-B-I00 and CTQ2017-85821-R); Junta de Andalucía (FQM-283), and University of Granada (Project ref. PPJIA2019-03)S

Variantes de la Aplicación de da Viga Conjugada, en el Cálculo de Momentos de Empotramiento

El método de la viga conjugada, para cálculo de deformaciones y momentos de empotramiento en flexión, ha sido abandonado por varios autores de los libros de Mecánica de Materiales más populares en América; no obstante partiendo de  la ecuación general de la elástica para flexión se puede fundamentar su uso.  Planteado de forma adecuada, la viga conjugada resulta un método rápido y sencillo, una vez comprendido los conceptos fundamentales de fuerza cortante y momento Flexionante

Variantes de la Aplicación de da Viga Conjugada, en el Cálculo de Momentos de Empotramiento

El método de la viga conjugada, para cálculo de deformaciones y momentos de empotramiento en flexión, ha sido abandonado por varios autores de los libros de Mecánica de Materiales más populares en América; no obstante partiendo de  la ecuación general de la elástica para flexión se puede fundamentar su uso.  Planteado de forma adecuada, la viga conjugada resulta un método rápido y sencillo, una vez comprendido los conceptos fundamentales de fuerza cortante y momento Flexionante

Variantes de la Aplicación de da Viga Conjugada, en el Cálculo de Momentos de Empotramiento

El método de la viga conjugada, para cálculo de deformaciones y momentos de empotramiento en flexión, ha sido abandonado por varios autores de los libros de Mecánica de Materiales más populares en América; no obstante partiendo de  la ecuación general de la elástica para flexión se puede fundamentar su uso.  Planteado de forma adecuada, la viga conjugada resulta un método rápido y sencillo, una vez comprendido los conceptos fundamentales de fuerza cortante y momento Flexionante

The Role of Knowledge Management in Supply Chain Management: A Literature Review

Purpose: The aim of this paper is to examine the state of knowledge management research in supply chain management from three standpoints, methodological approach, supply chain management area, and knowledge management processes. Design/methodology/approach: To achieve this, a systematic review is conducted over the period 2000-2014 on the basis of a qualitative content analysis. Findings: Major results showed that knowledge management can be viewed as a leverage mechanism for: (i) supply chain integration; (ii) the enhancement of intra and inter-relations across the supply chain; (iii) supply chain strategy alignment; and (iv) the reinforcement of knowledge transfer in product development. Some supply chain management areas such as reverse logistics, inventory management, forecasting/demand planning, outsourcing, and risk management have been explored only to some extent. Furthermore, knowledge transfer is being studied in the majority of the articles, mainly by both case study and survey approach; mathematical models and simulation techniques are used in very limited articles. Findings concerning theoretical perspectives and managerial issues are also described. Research limitations/implications: The limitation of our study encompasses the aspects of search period (2000-2014), selection of search databases (Web of Science and SCOPUS and language selection (English). Practical implications: The exhibition of the KM processes within the SC context may help practitioners and managers interested in implementing KM initiatives to replicate the methodologies in order to increase the possibilities of a successful KM adoption. Originality/value: The systematic review will contribute to the understanding of the present state of research in the knowledge management theory, with focus on the supply chain, as there are no state-of-knowledge studies that report a systematic literature review approach.Peer Reviewe

Effects of Surface Heterogeneity Due to Drip Irrigation on Scintillometer Estimates of Sensible, Latent Heat Fluxes and Evapotranspiration over Vineyards

Accurate estimates of sensible (H) and latent (LE) heat fluxes and actual evapotranspiration (ET) are required for monitoring vegetation growth and improved agricultural water management. A large aperture scintillometer (LAS) was used to provide these estimates with the objective of quantifying the effects of surface heterogeneity due to soil moisture and vegetation growth variability. The study was conducted over drip-irrigated vineyards located in a semi-arid region in Albacete, Spain during summer 2007. Surface heterogeneity was characterized by integrating eddy covariance (EC) observations of H, LE and ET; land surface temperature (LST) and normalized difference vegetation index (NDVI) data from Landsat and MODIS sensors; LST from an infrared thermometer (IRT); a data fusion model; and a two-source surface energy balance model. The EC observations showed 16% lack of closure during unstable atmospheric conditions and was corrected using the residual method. The comparison between the LAS and EC measurements of H, LE, and ET showed root mean square difference (RMSD) of 25 W m−2, 19 W m−2, and 0.41 mm day−1, respectively. LAS overestimated H and underestimated both LE and ET by 24 W m−2, 34 W m−2, and 0.36 mm day−1, respectively. The effects of soil moisture on LAS measurement of H was evaluated using the Bowen ratio, β. Discrepancies between HLAS and HEC were higher at β ≤ 0.5 but improved at 1 ≥ β \u3e 0.5 and β \u3e 1.0 with R2 of 0.76, 0.78, and 0.82, respectively. Variable vineyard growth affected LAS performance as its footprints saw lower NDVILAS compared to that of the EC (NDVIEC) by ~0.022. Surface heterogeneity increased during wetter periods, as characterized by the LST–NDVI space and temperature vegetation dryness index (TVDI). As TVDI increased (decreased) during drier (wetter) conditions, the discrepancies between HLAS and HEC, as well as LELAS and LEEC Re decreased (increased). Thresholds of TVDI of 0.3, 0.25, and 0.5 were identified, above which better agreements between LAS and EC estimates of H, LE, and ET, respectively, were obtained. These findings highlight the effectiveness and ability of LAS in monitoring vegetation growth over heterogonous areas with variable soil moisture, its potential use in supporting irrigation scheduling and agricultural water management over large regions

Anion–Cation Recognition Pattern, Thermal Stability and DFT-Calculations in the Crystal Structure of H2dap[Cd(HEDTA)(H2O)] Salt (H2dap = H2(N3,N7)-2,6-Diaminopurinium Cation)

We thank the Centre de Tecnologies de la Informació (CTI), Universitat de les Illes Balears for computational facilities. We also thank all projects for financial support.The proton transfer between equimolar amounts of [Cd(H2EDTA)(H2O)] and 2,6-diaminopurine (Hdap) yielded crystals of the out-of-sphere metal complex H2(N3,N7)dap [Cd(HEDTA)(H2O)]·H2O (1) that was studied by single-crystal X-ray diffraction, thermogravimetry, FT-IR spectroscopy, density functional theory (DFT) and quantum theory of “atoms-in-molecules” (QTAIM) methods. The crystal was mainly dominated by H-bonds, favored by the observed tautomer of the 2,6-diaminopurinium(1+) cation. Each chelate anion was H-bonded to three neighboring cations; two of them were also connected by a symmetry-related anti-parallel π,π-staking interaction. Our results are in clear contrast with that previously reported for H2(N1,N9)ade [Cu(HEDTA) (H2O)]·2H2O (EGOWIG in Cambridge Structural Database (CSD), Hade = adenine), in which H-bonds and π,π-stacking played relevant roles in the anion–cation interaction and the recognition between two pairs of ions, respectively. Factors contributing in such remarkable differences are discussed on the basis of the additional presence of the exocyclic 2-amino group in 2,6-diaminopurinium(1+) ion.This research was funded by the Excellence Network ‘Metal Ions in Biological Systems’ MetalBio CTQ2017-90802-REDT, the Research group FQM-283 (Junta de Andalucía) and MICIU/AEI of Spain (project CTQ2017-85821-R FEDER funds)

Reading salt activates gustatory brain regions: fMRI evidence for semantic grounding in a novel sensory modality

Because many words are typically used in the context of their referent objects and actions, distributed cortical circuits for these words may bind information about their form with perceptual and motor aspects of their meaning. Previous work has demonstrated such semantic grounding for sensorimotor, visual, auditory and olfactory knowledge linked to words, which is manifest in activation of the corresponding areas of the cortex. Here we explore the brain basis of gustatory semantic links of words whose meaning is primarily related to taste. In a blocked fMRI design, Spanish taste words and control words matched for a range of factors (including valence, arousal, imageability, frequency of use, number of letters and syllables) were presented to 59 right-handed participants in a passive reading task. Whereas all the words activated the left inferior frontal (BA44/45) and the posterior middle and superior temporal gyri (BA21/22), taste-related words produced a significantly stronger activation in these same areas, and also in the anterior insula, frontal operculum, lateral orbitofrontal gyrus and thalamus among others. As these areas comprise primary and secondary gustatory cortices, we conclude that the meaning of taste words is grounded in distributed cortical circuits reaching into areas that process taste sensation

Revisión metodológica del ITCR y cálculo de un índice de competitividad con terceros países

En este documento se abordarán dos metodologías de cálculo de ITCR: una que utiliza el comercio bilateral (exportaciones más importaciones) para seleccionar y ponderar los países que participan en el cálculo, y otra que se concentra específicamente en el sector exportador de un país, ya que elige exclusivamente las principales naciones que le compiten en los mercados internacionales