Regional Trade and Logistics Infrastructure: A Spatial Approach

This paper aims to analyze whether the existing logistics platforms network in Spain affects Spanish transport demand by using a spatial framework. In particular, we use demand for transport to export goods to other Spanish provinces as a proxy for logistics infrastructure demand in Spain. Then, we obtain data for trade flows between provinces (NUTS3) in the year 2007. We also obtain data about the number and area of logistics platforms existing in each Spanish province to proxy for the transportation network structure in Spain. In a first step, we construct weight matrixes considering first-order contiguity and we obtain that spatial dependence is significant in a spatial econometric model of commodity flows (LeSage and Polasek, 2008). Secondly, we incorporate logistics network structure dependence into the model so that the spatial lags measure the impact and significance on trade flows from all origins to all destinations by considering the importance of logistics performance in the neighboring provinces. Finally, we perform the analysis for different economic activities. The results obtained provide evidence about the role of the location of logistics platforms for satisfying existing demand for transport structure in the Spanish provinces..

Comparing income and wealth inequality in pre-industrial economies: The case of Castile (Spain) in the eighteenth century

Most research on inequality in pre-industrial economies has focused on either wealth or income, generating not readily comparable results. In this paper,we use a unique data set of Spain circa 1750 including information on (among other things) wealth and income for the same sample of households. Our findings provide methodological insights showing that a household’s position in the income distribution is strongly correlated with its position in the wealth distribution but is also influenced by several other household specific characteristics like human capital of the head of the household and the economic sector of her/his main occupation.Both authors acknowledge financial support from the Ministerio de Economía y Competitividad and FEDER through grant HAR2016-77794-R. Esteban A. Nicolini acknowledges financial support from Ministerio de Ciencia y Tecnología, Argentina, through PICT 2429-2013

High resolution system for nanoparticles hyperthermia efficiency evaluation

A system to evaluate nanoparticles efficiency in hyperthermia applications is presented. The method allows a direct measurement of the power dissipated by the nanoparticles through the determination of the first harmonic component of the in quadrature magnetic moment induced by the applied field. The magnetic moment is measured by using an induction method. To avoid errors and reduce the noise signal a double in phase demodulation technique is used. To test the system viability we have measured nanowires, nanoparticles and copper samples of different volumes to prove by comparing experimental and modeled result

Characterization of some aflatoxin-deficient mutants of Aspergillus parasiticus

Aflatoxins are polyketide secondary metabolites produced by isolates of Aspergillus flavus and A. parasiticus. Since 1960, when a wide toxic outbreak was associated with moldy feed contaminated with aflatoxins, many efforts have been concentrated on this topic because of both the carcinogenic properties of these mycotoxins, and the worldwide occurrence of aflatoxin-producing fungi in cereal, cereal products and other agricultural commodities

Locating Pagkatao: Self-Reflexivity in Philippine LGBTQI History-Writing

At a time when a global pandemic has disrupted lives to a large extent across the globe, doing research has become ever more complex, challenging and uncertain. Such unexpected shifts in the dynamics of research, resulting in unpredictable consequences, have prompted the author to further reflect on his positionality as a researcher writing LGBTQI history. In this paper, the author joins scholars who propose self-reflexivity as both an analytical and ethical tool in understanding volatile research contexts. In gender and sexuality studies much has been written about the importance of self-reflexivity in understanding the impact of researchers’ social and epistemic locations in knowledge production. The paper argues that self-reflexive practice is especially important in studying the histories of gender and sexual identities in a multiply colonised society such as the Philippines. The author reflects on his own identity and its continuing impact on his research process. Through a decolonial lens, he uses the Filipino psychological concept of pagkatao and unpacks its multi-layered meanings as selfhood, humanness and human dignity – three crucial elements in writing the history of identities

Continuous Forest Monitoring Using Cumulative Sums of Sentinel-1 Timeseries

Forest degradation is recognized as a major environmental threat on a global scale. The recent rise in natural and anthropogenic destruction of forested ecosystems highlights the need for developing new, rapid, and accurate remote sensing monitoring systems, which capture forested land transformations. In spite of the great technological advances made in airborne and spaceborne sensors over the past decades, current Earth observation (EO) change detection methods still need to overcome numerous limitations. Optical sensors have been commonly used for detecting land use and land cover changes (LULCC), however, the requirement of certain technical and environmental conditions (e.g., sunlight, not cloud-coverage) restrict their use. More recently, synthetic aperture radar (SAR)-based change detection approaches have been used to overcome these technical limitations, but they commonly rely on static detection approaches (e.g., pre and post disturbance scenario comparison) that are slow to monitor change. In this context, this paper presents a novel approach for mapping forest structural changes in a continuous and near-real-time manner using dense Sentinel-1 image time-series. Our cumulative sum−spatial mean corrected (CUSU-SMC) algorithm approach is based on cumulative sum statistical analysis, which allows the continuous monitoring of radar signal variations, derived from forest structural change. Taking advantage of the high data availability offered by the Sentinel-1 (S-1) C-band constellation, we used an S-1 ground range detected (GRD) dual (VV, VH) polarization timeseries, formed by a total of 84 images, to monitor clear-cutting operations carried out in a Scottish forest during 2019. The analysis showed a user’s accuracy of 82% for the (conservative) detection approach. The use of a post-processing neighbor filter increased the detection performance to a user’s accuracy of 86% with an overall accuracy of 77% for areas of a minimum extent of 0.4ha. To further validate the detection performance of the method, the CUSU-SMC change detector was tested against commonly-used pairwise change detection approaches for the same period. These results emphasize the capabilities of dense SAR time-series for environmental monitoring and provide a useful tool for optimizing national forest inventories

Estimación del intervalo post mortem con Dermestes maculatus (Coleoptera: Dermestidae) y Chrysomya albiceps (Diptera: Calliphoridae) en Colombia

Insects attracted to cadavers can be used to estimate postmortem interval (PMI). In this study, a sample of insects associated with a dressed human cadaver that was enclosed with a woolen blanket tied to a stone in a closed and aquatic environment was found and analyzed to determine PMI. Inmature stages and adults of Chrysomya albiceps and Dermestes maculatus were collected. Furthermore, an experience with a pig carcass was conducted under the same conditions the human cadaver was found to verify the emersion time. This began 3 days after carcass submersion. mPMI was 20 days and approximately 1.5 h. The data present in this work illustrates the use of D. maculatus and C. albiceps to determine time of death under particular conditions, being the beetle species the first colonizer.Los insectos atraídos a cadáveres pueden ser usados para estimar el intervalo post mortem (IPM). En este estudio, una muestra de estados inmaduros y adultos de Dermestes maculatus y Chrysomya albiceps fueron recolectados en asociación con un cadáver humano en un ambiente cerrado y acuático en Caquetá, Colombia, y analizada para determinar el IPM. Además, se condujo un experimento con un cadáver porcino para estimar el tiempo de emersión, que comenzó tres días después de la sumersión del cadáver. El IPM mínimo fue 481.5 horas. El tiempo de muerte, tiempo de emersión y el periodo de actividad insectil coincidieron con las acciones de los sospechosos del crimen, quienes confesaron haber asesinado a la víctima 25 días antes del descubrimiento del cadáver.Fil: Zanetti, Noelia Inés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Ciencias Biológicas y Biomédicas del Sur. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Instituto de Ciencias Biológicas y Biomédicas del Sur; ArgentinaFil: Ramos Pastrana, Yardany. Universidad de la Amzonia; ColombiaFil: Córdoba Suarez, Eric. Universidad de la Amzonia; Colombi

Representing Black Male Innocence

The course is an elective of specialization that seeks to develop the general competence of innovative thinking and specific ABET competence (j.3) that lets you know and apply contemporary issues of supply chain aligned to industry trends that will allow you more dominance in the professional field of industrial engineering.SCM course is important because permit to student understand and apply models and best practices of logistics in Supply Chain. Different issues regarding to the logistics operations marketing procurement warehousing and information technology will be discussed and proposed. The results from strategies in Supply Chain collaborative and alliance 3PL order management and fulfillment and others key issues will be studied. The course concludes with trends and challenges for supply chain in the future

A search for water maser emission toward obscured post-AGB star and planetary nebula candidates

Water maser emission at 22 GHz is a useful probe to study the transition between the nearly spherical mass-loss in the AGB to a collimated one in the post-AGB phase. In their turn, collimated jets in the post-AGB phase could determine the shape of planetary nebulae (PNe) once photoionization starts. We intend to find new cases of post-AGB stars and PNe with water maser emission, including water fountains or water-maser-emitting PNe. We observed water maser emission in a sample of 133 objects, with a significant fraction being post-AGB and young PN candidate sources with strong obscuration. We detected this emission in 15 of them, of which seven are reported here for the first time. We identified three water fountain candidates: IRAS 17291-2147, with a total velocity spread of ~96 km/s in its water maser components and two sources (IRAS 17021-3109 and IRAS 17348-2906) that show water maser emission outside the velocity range covered by OH masers. We have also identified IRAS 17393-2727 as a possible new water-maser-emitting PN. The detection rate is higher in obscured objects (14%) than in those with optical counterparts (7%), consistent with previous results. Water maser emission seems to be common in objects that are bipolar in the near-IR (43% detection rate). The water maser spectra of water fountain candidates like IRAS 17291-2147 show significantly less maser components than others (e.g., IRAS 18113-2503). We speculate that most post-AGBs may show water maser emission with wide enough velocity spread (> 100 km/s) when observed with enough sensitivity and/or for long enough periods of time. Therefore, it may be necessary to single out a special group of "water fountains", probably defined by their high maser luminosities. We also suggest that the presence of both water and OH masers in a PN is a better tracer of its youth, rather than the presence of just one of these species.Comment: To be published in Astronomy & Astrophysics. 16 pages, 1 figure (spanning 5 pages). This version includes some minor language corrections and fixes some errors in Table