SemTab 2019: Resources to Benchmark Tabular Data to Knowledge Graph Matching Systems

Tabular data to Knowledge Graph matching is the process of assigning semantic tags from knowledge graphs (e.g., Wikidata or DBpedia) to the elements of a table. This task is a challenging problem for various reasons, including the lack of metadata (e.g., table and column names), the noisiness, heterogeneity, incompleteness and ambiguity in the data. The results of this task provide significant insights about potentially highly valuable tabular data, as recent works have shown, enabling a new family of data analytics and data science applications. Despite significant amount of work on various flavors of this problem, there is a lack of a common framework to conduct a systematic evaluation of state-of-the-art systems. The creation of the Semantic Web Challenge on Tabular Data to Knowledge Graph Matching (SemTab) aims at filling this gap. In this paper, we report about the datasets, infrastructure and lessons learned from the first edition of the SemTab challenge

Experimental investigation of dynamical invariants in bipartite entanglement

The non-conservation of entanglement, when two or more particles interact, sets it apart from other dynamical quantities like energy and momentum. It does not allow the interpretation of the subtle dynamics of entanglement as a flow of this quantity between the constituents of the system. Here we show that adding a third party to a two-particle system may lead to a conservation law that relates the quantities characterizing the bipartite entanglement between each of the parties and the other two. We provide an experimental demonstration of this idea using entangled photons, and generalize it to N-partite GHZ states

Técnica microquirúrgica de anastomosis vascular sin sutura en el trasplante experimental de órganos

Las anastomosis vasculares para e! trasplante de órganos en pequeños animales se realizan habitualmente por sutura manual ya sea continua o discontinua, aunque en los últimos años se ha difundido una técnica sin sutura consistente en la utilización de «cuffs». En e! presente trabajo se describe la técnica de! cuff que nuestro equipo utilizó para la realización de las anastomosis vasculares en e! trasplante experimental de órganos. El cuff consta de un tubo o cuerpo, que se prolonga por una pestaña, y su tamaño es diferente según el calibre del vaso que se pretende anastornosar. Entre las ventajas que ofrece su utilización respecto de la sutura manual, destacan su sencillo aprendizaje, bajo coste y el reducido tiempo en que se realizan las anastomosis, que siempre son estancas. Se concluye que esta técnica constituye una alternativa a las ya clásicas técnicas de sutura manual y no aumenta al porcentaje de complicaciones, permitiendo además supervivencias a largo plazo en los modelos experimentales que fueron estudiados.Vascular anastornoses in organ transplants of small anirnals are usually performed with a manual suture using interrupted or continuous stitcbes, although over the last few years a suturefree technique has been deueloped consisting of the use of cuffs. In this paper, the cuff technique which our team used to perform vascular anastomoses in experimental organ transplants, is described. The cuff is made up oi a tube or body wich has a prolongation or up, tbe size varying according to the calibre of the blood vessel to be anastomosed. The advantages of this method in cornparison with manual sutures, is the ease with which the tecbnique is learnt, its low cost, and the speed with which the anastomoses are carried out, all of which are watertight. In conclusion, this technique constitutes an alternative to the classical manual suture techniques without increasing the percentage of cornplications, and allowing long-term suruiual rates in the experimental models studied

Coupling biological detection to liquid chromatography

La forma habitual de probar la actividad biológica de una planta dada es a partir de una extracto crudo y, si resultase de interés, continuar con la tediosa y costosa y laboriosas tareas de fraccionamiento, purificación y análisis sistemático de cada fracción resultante. Este procedimiento es actualmente el mismo para mezclas complejas resultantes de métodos sintéticos modernos como la química combinatoria. El procedimiento para la caracterización del fármaco se verá beneficiada si se puede restringir el estudio a solo aquellas fracciones donde la actividad biológica estaba presente.CONACYT – Consejo Nacional de Ciencia y TecnologíaPROCIENCI

Valor del seguimiento densitométrico en la evaluación de una prótesis total de cadera

En este estudio se ha revisado la evolución clínica, radiográfica y densitométrica de 30 Prótesis Totales de Cadera modelo Bihapro, con recubrimiento de Hidroxiapatita. Se han presentado complicaciones clínicas en 3 casos (10%). La evolución ha sido de incremento de la densidad alrededor de la prótesis en el 97% de los casos. El aumento medio de densidad fue de 1 a 1,3 (cociente hueso periprotésico/hueso normal) en el cotilo y de 1,4 a 1,5 en la zona metafisaria (áreas 1 y 7 de Gruen) del fémur. Los resultados clínicos, radiográficos y densitométricos (Sistema CADIA) han sido coincidentes en el 97% de los casos.In this study we have reviewed the clinical, radiographical and densitometric follow-up of 30 Bihapro® total hip hydroxyapatite-coated arthroplasties. There were complications in 3 cases (10%). Densitometric results showed an increase of bone density around the prosthesis in 97% of cases. The average increase in bone denstiy (periprosthetic/normal bone ratio) varied from 1 to 1.3 in the acetabulum and from 1.4 to 1.5 in the metaphysial area of the femur (Gruen's zones 1 and 7). Clinical, radiographical and densitometric results (CADIA System) exhibited a foot correlation in 97% of cases

Testing the chemical tagging technique with open clusters

Context. Stars are born together from giant molecular clouds and, if we assume that the priors were chemically homogeneous and well-mixed, we expect them to share the same chemical composition. Most of the stellar aggregates are disrupted while orbiting the Galaxy and most of the dynamic information is lost, thus the only possibility of reconstructing the stellar formation history is to analyze the chemical abundances that we observe today. Aims. The chemical tagging technique aims to recover disrupted stellar clusters based merely on their chemical composition. We evaluate the viability of this technique to recover co-natal stars that are no longer gravitationally bound. Methods. Open clusters are co-natal aggregates that have managed to survive together. We compiled stellar spectra from 31 old and intermediate-age open clusters, homogeneously derived atmospheric parameters, and 17 abundance species, and applied machine learning algorithms to group the stars based on their chemical composition. This approach allows us to evaluate the viability and efficiency of the chemical tagging technique. Results. We found that stars at different evolutionary stages have distinct chemical patterns that may be due to NLTE effects, atomic diffusion, mixing, and biases. When separating stars into dwarfs and giants, we observed that a few open clusters show distinct chemical signatures while the majority show a high degree of overlap. This limits the recovery of co-natal aggregates by applying the chemical tagging technique. Nevertheless, there is room for improvement if more elements are included and models are improved.Comment: accepted for publication in Astronomy and Astrophysics. Corrected typo

Distribución y solapamiento espacial de las aves acuáticas y ribereñas en un humedal

Spatial distribution of bird community and their niche overlap on Media Luna wetland was the main objective of this work. A wide and heterogeneous use of the system resources were detected, mainlyrelated to feeding and resting activities. By resting activity, most of the species were gregarious, sharing branches and riparian grassland, showing overlap among them. Whereas in feeding activity there was less evident overlap. Piscivorous egrets and herons (Ardeidae) showed high overlap among them, but temporal resources partitioning of nocturnal species such as Nycticorax nycticorax L, or different diet of Bubulcus ibis L, reduce the competence. Some species such as Jacana spinosa L realised all itsactivities in an only type of habitat with the lowest overlap with another species. Low interespecific aggressiveness was observed. Anthropic disturbances may favoured some species abundance and possible decrease of another species. Bad management actions had high consequences in the study area. So, future management actions must consider information of use and resource partitioning of bird group.La distribución espacial de una comunidad de aves y sus niveles de solapamiento dentro del humedal de la Media Luna fue el principal objetivo de este trabajo. Se detectó un uso amplio y heterogéneo del sistema y sus recursos, principalmente en relación a dos actividades: alimentación y descanso. Para descanso, la mayoría de las especies se mostraron gregarias y compartieron ramas deárboles o vegetación ribereña, mostrando solapamiento entre ellas; mientras que en actividad de alimentación hubo un solapamiento de nicho menos evidente. La competencia trófica fue evidente entremiembros de un mismo gremio, como algunas garzas (Ardeidae) piscívoras que mostraron solapamientos mayores al 75% entre sí, pero la repartición temporal de recursos de las especies nocturnas como Nycticorax nycticorax L, o la diferente dieta de Bubulcus ibis L redujeron la competencia. Algunas especies como Jacana spinosa L realizaron todas sus actividades en un sólo tipo de hábitat, con solapamiento menor al 10% con las demás especies. En general se observó poca agresividad interespecífica. Alteraciones antrópicas en el medio pueden favorecer la abundancia de algunas especies en posible decremento de otras. Los resultados mostraron que la repartición en el uso del hábitat es importante para actividades como descanso, además de la alimentación. Acciones de gestión mal llevadas a cabo tuvieron gran repercusión en el área de estudio, por lo que futuras acciones deben considerar información sobre el uso y la repartición de recursos por parte del grupo de las aves, para diferentes actividades

Isolation of a New Mexican Strain of Bacillus subtilis with Antifungal and Antibacterial Activities

Although several strains of B. subtilis with antifungal activity have been isolated worldwide, to date there are no published reports regarding the isolation of a native B. subtilis strain from strawberry plants in Mexico. A native bacterium (Bacillus subtilis 21) demonstrated in vitro antagonistic activity against different plant pathogenic fungi. Under greenhouse conditions, it was shown that plants infected with Rhizoctonia solani and Fusarium verticillioides and treated with B. subtilis 21 produced augment in the number of leaves per plant and an increment in the length of healthy leaves in comparison with untreated plants. In addition, B. subtilis 21 showed activity against pathogenic bacteria. Secreted proteins by B. subtilis 21 were studied, detecting the presence of proteases and bacteriocin-like inhibitor substances that could be implicated in its antagonistic activity. Chitinases and zwittermicin production could not be detected. Then, B. subtilis 21 could potentially be used to control phytopathogenic fungi that infect strawberry plants

The diagnosis of hereditary angioedema: family caregivers’ experiences

The aim of this study was to understand the experiences of family caregivers in the process of diagnosing hereditary angioedema. An interpretive and qualitative research methodology based on Gadamer’s philosophical hermeneutics was carried out. Data collection took place between May 2015 and August 2016 and included a focus group and in-depth interviews with 16 family caregivers. Two themes define the experiences of family caregivers: “Family life focuses on identifying the problem” and “Discovering and coping with a complex diagnosis.” The process of diagnosis generates fear, anxiety, uncertainty, and incomprehension. Family caregivers are the main support for patients diagnosed with hereditary angioedema. As they share in the patients’ suffering, they need a diagnosis to be established to be able to cope with the disease and offer support. Family health nurses can contribute to improving the coping process in this phase of the disease