Análisis multivariable: una nueva vía para la caracterización cerámica

En los estudios sobre comercio en la antigüedad, la determinación del lugar de procedencia de un recipiente es imprescindible. Esta caracterización se ha resuelto siempre con el análisis fisico-químico de las pastas cerámicas o el estudio epigráfico. Sin embargo, creo que existe una tercera vía: la clasificación tipológica de las cerámicas a través de parámetros numéricos. Es un procedimiento mucho más barato que el análisis fisico-químico, y es por ello que sería de gran utilidad para yacimientos en los que la cantidad de material hace imposible esos análisis para todos los fragmentos de cerámica.In the studies about trade in antiquity, to determine the place of origin of containers is indispensable. Until now, this problem has been resolved with the physic-chemical analysis of clays or with the ephigrafical evidence. But, I think there is third way: the typological clasification of ceramic by numerical parameters. This process is cheaper that the physic-chemical analysis, and for this reason can become a very useful tool in digs where the great amount of material can malee impossible to analyze all the cerarnic sherds

Análisis bibliométrico mundial de BIM a través de la colección principal de la Web of Science (2003-2017)

The main objective is to perform a quantitative and qualitative analysis from the institutional point of view of the related research on Building Information Modeling (BIM) collected in the Web of Science Core Collection during the period 2003- 2017. For this, all documents of the type ‘article’ or ‘review’ were reviewed and several bibliometric indicators analyzed. Similarly, the international dissemination of the research of the 16 most productive countries was analyzed, indicating the publication journals of each country and concluding that the main journals. USA is the most productive country although with a relative impact factor slightly higher than average due to the dispersion of its publications in journals of medium or low impact. It also shows how Curtin University (Australia) and the Georgia Institute of Technology (USA) have been the most productive and high impact institutions, although the outstanding rise of Hong Kong Polytechnic University is noted.El principal objetivo es realizar un análisis cuantitativo y cualitativo desde el punto de vista institucional de la investigación relacionada con BIM presente en la colección principal de la Web of Science durante el período 2003-2017. Para ello, fueron revisados los registros del tipo ‘artículo’ o ‘revisión’ y se analizaron diferentes indicadores bibliométricos. La difusión internacional de investigación de los 16 países más productivos fue analizada, indicando las revistas de publicación de cada país, así como las principales revistas. Asimismo, EE.UU. es el país más productivo, aunque con un factor de impacto relativo algo mayor que la media debido a la dispersión de sus publicaciones en revistas de medio y bajo impacto, y la Universidad de Curtin (Australia) y el Instituto de Tecnología de Georgia (EE.UU.) son las instituciones más productivas y con alto impacto, sobresaliendo también la Universidad Politécnica de Hong Kong

Detection of DNA Double-Strand Breaks byγ-H2AX Immunodetection

DNA double-strand breaks (DSBs) are the most deleterious type of DNA damage and a cause of geneticinstability as they can lead to mutations, genome rearrangements, or loss of genetic material when notproperly repaired. Eukaryotes from budding yeast to mammalian cells respond to the formation of DSBswith the immediate phosphorylation of a histone H2A isoform. The modified histone, phosphorylated inserine 139 in mammals (S129 in yeast), is namedγ-H2AX. Detection of DSBs is of high relevance inresearch on DNA repair, aging, tumorigenesis, and cancer drug development, given the tight association ofDSBs with different diseases and its potential to kill cells. DSB levels can be obtained by measuring levels ofγ-H2AX in extracts of cell populations or by counting foci in individual nuclei. In this chapter sometechniques to detectγ-H2AX are described

Laparoscopic image analysis for automatic tracking of surgical tools

Laparoscopy is a surgical technique nowadays embedded in the clinical routine. Recent researches have been focused on analysing video information captured by the endoscope for extracting cues useful for surgeons, such as depth information. In particular, the 3D pose estimation of the surgical tools presents three important added values: (1) to extract objective parameters for the surgical training stage, (2) to develop an image-guided surgery based on the knowledge of the surgery tools localization, (3) to design new roboticsystems for an automatic laparoscope positioning, according to the visual feedback. Tool’s shape and orientation in the image is the key to get its 3D position. This work presents an image analysis for automatic laparoscopic tool’s detection along the recorded video without extra tool markers, using an edges detection strategy. Also, this analysis includes a previous stage of barrel distortion correction for videoendoscopic image