A visualization of the damage in Lead Tungstate calorimeter crystals after exposure to high-energy hadrons

The anticipated performance of calorimeter crystals in the environment expected after the planned High-Luminosity upgrade of the Large Hadron Collider (HL-LHC) at CERN has to be well understood, before informed decisions can be made on the need for detector upgrades. Throughout the years of running at the HL-LHC, the detectors will be exposed to considerable fluences of fast hadrons, that have been shown to cause cumulative transparency losses in Lead Tungstate scintillating crystals. In this study, we present direct evidence of the main underlying damage mechanism. Results are shown from a test that yields a direct insight into the nature of the hadron-specific damage in Lead Tungstate calorimeter crystals exposed to 24 GeV/c protons.Comment: 8 pages, 6 figure

The use of the Gompertz model in its differential form for weed emergence modelling

Los modelos empíricos que se utilizan para describir y predecir las emergencias de las malas hierbas basados en temperatura y humedad del suelo presentan dos puntos débiles: la ambigüedad que supone tomar como instante inicial de acumulación de grados termales o hidrotermales el día del laboreo y la necesidad de su validación posterior. La utilización de estos modelos en su forma diferencial haría innecesario establecer un día concreto de inicio de la acumulación de grados y podría aportar predicciones sin necesidad de validaciones. Para comprobar estas hipótesis, la ecuación de Gompertz, uno de los modelos más utilizados para describir emergencias, se ha aplicado en su forma diferencial a 35 conjuntos de datos de malas hierbas de diferentes localidades. El ajuste obtenido reproduce de forma satisfactoria la dinámica de emergencias observada en el campo y permite determinar con precisión el momento de aplicación de una medida de control.The Gompertz model, in its differential form, is used for weed emergence modelling. Empirical models that are used to describe the emergence patterns of weeds based on temperature and soil moisture have two weaknesses: the uncertainty of when to start counting and the need for validation. The use of these models in their differential form avoids setting up an ambiguous starting date and also avoids model validation. In order to check these hypotheses, the Gompertz equation, one of the models used most frequently for weed emergence, was verified in 35 data sets of weed species emergence from different areas within the Iberian Peninsula. In all cases, the emergence pattern and forecast for ideal weed control timing was sufficiently accurate

The invasive species Sceliphron curvatum (F. Smith 1870) found in the Iberian Peninsula (Hymenoptera: Apoidea: Sphecidae)

[ES] Se menciona por primera vez Sceliphron curvatum (F.Smith 1870) de la Península Ibérica a partir del estudio de ejemplares provenientes del centro de España. Las presentes citas constituyen las más occidentales y meridionales conocidas de esta especie invasora en el continente europeo. Se comenta la actual distribución de esta avispa en Europa.[EN] Sceliphron curvatum is recorded from the Iberian Peninsula for the first time. Its known distribution in Europe is thus expanded; these records, from central Spain, are the most south-western currently known from the continent.Peer reviewe

Connecting p-gonal loci in the compactification of moduli space

Consider the moduli space M g of Riemann surfaces of genusg≥2 and its Deligne-Munford compactification M g ¯ . We are interested in the branch locus B g for g>2 , i.e., the subset of M g consisting of surfaces with automorphisms. It is well-known that the set of hyperelliptic surfaces (the hyperelliptic locus) is connected in M g but the set of (cyclic) trigonal surfaces is not. By contrast, we show that for g≥5 the set of (cyclic) trigonal surfaces is connected in M g ¯ . To do so we exhibit an explicit nodal surface that lies in the completion of every equisymmetric set of 3-gonal Riemann surfaces. For p>3 the connectivity of the p -gonal loci becomes more involved. We show that for p≥11 prime and genus g=p−1 there are one-dimensional strata of cyclic p -gonal surfaces that are completely isolated in the completion B g ¯ of the branch locus in M g ¯

Деякі питання структурної теорії додавання множин

(uk) Доведено теорему про існування множин, а також знайдені значення у вершинах критичних трикутників.(en) Generalization of theorem on the existence. The meanings at the axis of critical triangles have been found

The response of taxonomic and functional diversity of the seed bank to agricultural intensification and soil properties in two Mediterranean cereal areas

Weed seed bank diversity has been severely impacted by agriculture intensifi cation. However, the functional consequences have been poorly studied in highly intensifi ed agro-ecosystems.Postprint (published version

Virtual libraries of tissue and clinical samples: potential role of a 3-D microscope.

Our international innovative teaching group from different European Universities (De Montfort University, DMU, UK; and the Spanish University of Alcalá, University Miguel Hernández and University of San Pablo CEU), in conjunction with practicing biomedical scientists in the National Health Service (UK) and biomedical researchers, are developing two complete e-learning packages for teaching and learning medical parasitology, named DMU e-Parasitology (accessible at: http://parasitology.dmu.ac.uk), and biology and chemistry, named DMU e-Biology (accessible at: http://parasitology.dmu.ac.uk/ebiology/index.htm), respectively. Both packages will include a virtual microscope with a complete library of digitised tissue images, clinical slides and cell culture slides/mini-videos for enhancing the teaching and learning of a myriad of techniques applicable to health science undergraduate and postgraduate students. Thus, these packages include detecting human parasites, by becoming familiar with their infective structures and/or organs (e.g. eggs, cysts) and/or explore pathogenic tissues stained with traditional (e.g. haematoxylin & eosin) or more modern (e.g. immunohistochemistry) techniques. The Virtual Microscope (VM) module in the DMU e-Parasitology package is almost completed (accessible at: http://parasitology.dmu.ac.uk/learn/microscope.htm) and contains a section for the three major groups of human-pathogenic parasites (Peña-Fernández et al., 2018) [1]. Digitised slides are provided with the functionality of a microscope by using the gadget Zoomify®, and we consider that they can enhance learning, as previous studies reported in the literature have reported similar sensitivity and specificity rates for identification of parasites for both digitised and real slides. The DMU e-Biology’s VM, currently in development, will provide healthy and pathological tissue samples from a range of mammalian tissues and organs. This communication will provide a description of both virtual libraries and the process of developing them. In conjunction, we will use a three-dimensional (3D) super-resolution microscopy, 3D Cell Explorer (Nanolive, Lausanne, Switzerland), to incorporate potential 3D microscopic photographs/short videos of cells to provide students with information about the spatial arrangement and morphologies of cells that are essential for life

Web-based learning and teaching resources for microscopic detection of human parasites.

DMU e-Parasitology (http://parasitology.dmu.ac.uk) presents novel web-based resources co-developed by EU academics at De Montfort University (DMU) for the teaching and learning of microscopic diagnoses of common and emerging human parasites. The package will be completed early in 2019 and presents a Virtual Laboratory and Microscope, which are equipped with engaging units for learning parasitological staining and fresh preparation techniques for detecting cysts, oocysts, eggs and spores, in conjunction with a library of digitised clinical slides. Units are equipped with short videos of academics performing the different techniques and quizzes and exercises, to provide students with the most practical experience possible