Condrosarcoma equino: Presentacion de un caso

The authors present an infrequent case of chondrosarcoma in a horse and its special evolution in reponse to our treatment. A ten-year-old male horse weighing 480 kg showed a neoplastic formation on the anterior lateral and median fece of III metatar.sal bone, with a lobular shape, yellowish-white colour, firm consistency, of chondroid type, lacking granu1ation tissue and epidermis and wich was 5 months old. The horse had a case recordof sharp injuries near the lesion produced by wire, and the owner had applied lime on the injuries. The tumour was sugically removed, it weghed 14 kg and samples were taken for a histopathological study. Relapse occurred after 20 days. The tumour was removed again and 5 fluorouracilo was applied to the surgical area once a week during 6 weeks. After 9 monsths, the horse showed clinical impairment and weight loss, so it is treated with an extract of Uncaria tomentosa IV in 30 ml d.oSes, 3 times a week. The horse died a year later after the second operationSe comunica la presentación de un caso por la infrecuencia del condrosarcoma en equinos y la particular evolución observada en respuesta a nuestro tratamiento. Se presentó el caso de un equino macho SPC de 10 años y 480 Kg. que presentaba una formación neoplásica en la cara antero lateral y medial de III hueso metatarsiano, de aspecto lobulado, coloración blanco amarillento, consistencia firme, tipo condroide, carente de tejido de granulación y epidermización cuya evolución databa de 5 meses. El equino presentaba antecedentes de heridas cortantes provocadas por alambres en proximidad de la lesión motivo por el cual el propietario aplicó cal. Se efectuó excéresis quirúrgica del tumor, que pesó 14 kilogramos y se tomaron muestras para estudio histopatológico. A los 20 días se produce la recidiva, procediéndose a su ablación y aplicación de 5-fluorouracilo sobre el lecho quirúrgico con una frecuencia de una vez por semana durante 6 semanas. A los 9 meses el equino presentaba desmejoramiento clínico general, pérdida de peso, razón por la cual se resuelve su tratamiento con un extracto de Uncaria tomentosa EV en dosis de 30 ml, 3 veces por semana. El equino murió al cabo de 1 año de la segunda intervenció

Euclid Near Infrared Spectrometer and Photometer instrument concept and first test results obtained for different breadboards models at the end of phase C

The Euclid mission objective is to understand why the expansion of the Universe is accelerating through by mapping the geometry of the dark Universe by investigating the distance-redshift relationship and tracing the evolution of cosmic structures. The Euclid project is part of ESA's Cosmic Vision program with its launch planned for 2020 (ref [1]). The NISP (Near Infrared Spectrometer and Photometer) is one of the two Euclid instruments and is operating in the near-IR spectral region (900- 2000nm) as a photometer and spectrometer. The instrument is composed of: - a cold (135K) optomechanical subsystem consisting of a Silicon carbide structure, an optical assembly (corrector and camera lens), a filter wheel mechanism, a grism wheel mechanism, a calibration unit and a thermal control system - a detection subsystem based on a mosaic of 16 HAWAII2RG cooled to 95K with their front-end readout electronic cooled to 140K, integrated on a mechanical focal plane structure made with molybdenum and aluminum. The detection subsystem is mounted on the optomechanical subsystem structure - a warm electronic subsystem (280K) composed of a data processing / detector control unit and of an instrument control unit that interfaces with the spacecraft via a 1553 bus for command and control and via Spacewire links for science data This presentation describes the architecture of the instrument at the end of the phase C (Detailed Design Review), the expected performance, the technological key challenges and preliminary test results obtained for different NISP subsystem breadboards and for the NISP Structural and Thermal model (STM)

Etude par simulation numerique de l'hydrodynamique au voisinage d'une interface poreuse

SIGLEAvailable from INIST (FR), Document Supply Service, under shelf-number : T 83319 / INIST-CNRS - Institut de l'Information Scientifique et TechniqueFRFranc

Data from: Crop pests and predators exhibit inconsistent responses to surrounding landscape composition

AbstractThe idea that noncrop habitat enhances pest control and represents a win–win opportunity to conserve biodiversity and bolster yields has emerged as an agroecological paradigm. However, while noncrop habitat in landscapes surrounding farms sometimes benefits pest predators, natural enemy responses remain heterogeneous across studies and effects on pests are inconclusive. The observed heterogeneity in species responses to noncrop habitat may be biological in origin or could result from variation in how habitat and biocontrol are measured. Here, we use a pest-control database encompassing 132 studies and 6,759 sites worldwide to model natural enemy and pest abundances, predation rates, and crop damage as a function of landscape composition. Our results showed that although landscape composition explained significant variation within studies, pest and enemy abundances, predation rates, crop damage, and yields each exhibited different responses across studies, sometimes increasing and sometimes decreasing in landscapes with more noncrop habitat but overall showing no consistent trend. Thus, models that used landscape-composition variables to predict pest-control dynamics demonstrated little potential to explain variation across studies, though prediction did improve when comparing studies with similar crop and landscape features. Overall, our work shows that surrounding noncrop habitat does not consistently improve pest management, meaning habitat conservation may bolster production in some systems and depress yields in others. Future efforts to develop tools that inform farmers when habitat conservation truly represents a win–win would benefit from increased understanding of how landscape effects are modulated by local farm management and the biology of pests and their enemies