z'-band Ground-Based Detection of the Secondary Eclipse of WASP-19b

We present the ground-based detection of the secondary eclipse of the transiting exoplanet WASP-19b. The observations were made in the Sloan z'-band using the ULTRACAM triple-beam CCD camera mounted on the NTT. The measurement shows a 0.088\pm0.019% eclipse depth, matching previous predictions based on H- and K-band measurements. We discuss in detail our approach to the removal of errors arising due to systematics in the data set, in addition to fitting a model transit to our data. This fit returns an eclipse centre, T0, of 2455578.7676 HJD, consistent with a circular orbit. Our measurement of the secondary eclipse depth is also compared to model atmospheres of WASP-19b, and is found to be consistent with previous measurements at longer wavelengths for the model atmospheres we investigated.Comment: 20 pages, 10 figures. Published in the ApJ Supplement serie

Early-stage intestinal-type gastric adenocarcinoma as an incidental finding: case report and review of literature

Gastric cancer is the malignant neoplasm in which gastric resection is the only viable strategy for long-term survival. Gastric carcinoma typically does not produce symptoms, therefore presenting as either advance or metastatic disease at the time of diagnosis. The most common early symptoms tend to be abdominal pain and weight loss. Adequate surgical resection is the only curative therapeutic option in patients with resectable gastric cancer.  We present the case of a 66-year-old male patient who initially presented with abdominal pain and one episode of gastrointestinal bleeding, for which an endoscopic biopsy was conducted which reported intestinal-type gastric adenocarcinoma. Subtotal gastrectomy with Billroth II anastomosis was then performed without reported complications. Patient remains asymptomatic 3 months following the surgical intervention in surveillance with ambulatory care

NeuroEPO influence on the fetal heart in a placental insufficiency model of rats

Foundation: placental insufficiency is the most common cause of intrauterine growth retardation, which can cause cardiovascular alterations. Recently, erythropoietin therapies have been developed that protect hypoxic cardiac tissues.Objective: To evaluate the influence of human recombinant erythropoietin with low sialic acid content (NeuroEPO) on the fetal heart in a rat model of placental insufficiency.Methods: 14 Wistar rats gestated with unilateral ligation of the right uterine artery on day 16 of gestation were used. That same day, seven rats were administered NeuroEPO (0.5 mg/kg/day subcutaneously for three days) and the rest received placebo. On day 20 of gestation, the fetuses were divided into four groups: a control group, a group with intrauterine growth retardation, a NeuroEPO control group, and a group with intrauterine growth retardation and NeuroEPO. In the fetuses, placental weight, fetal weight and placental efficiency were obtained. In the histological study, the number of cardiomyocytes, number of blood vessels and quantity of collagen fibers were quantified.Results: the group with intrauterine growth retardation presented a decrease in fetal weight, the number of cardiomyocytes, the number of blood vessels and an increase in the amount of collagen fibers (p<0.05). When fetuses with intrauterine growth retardation were treated with NeuroEPO, fetal weight increased, although the weight was not similar to the control. The rest of the variables behaved similar to the control.Conclusions: the administration of this molecule improved fetal weight and allowed an adequate balance in the development of the fetal heart, perhaps due to the cytoprotective effects of this molecule

The 2016 Feb 19 outburst of comet 67P/CG: an ESA Rosetta multi-instrument study

On 2016 Feb 19, nine Rosetta instruments serendipitously observed an outburst of gas and dust from the nucleus of comet 67P/Churyumov-Gerasimenko. Among these instruments were cameras and spectrometers ranging from UV over visible to microwave wavelengths, in situ gas, dust and plasma instruments, and one dust collector. At 09:40 a dust cloud developed at the edge of an image in the shadowed region of the nucleus. Over the next two hours the instruments recorded a signature of the outburst that significantly exceeded the background. The enhancement ranged from 50 per cent of the neutral gas density at Rosetta to factors >100 of the brightness of the coma near the nucleus. Dust related phenomena (dust counts or brightness due to illuminated dust) showed the strongest enhancements (factors >10). However, even the electron density at Rosetta increased by a factor 3 and consequently the spacecraft potential changed from ∼−16 V to −20 V during the outburst. A clear sequence of events was observed at the distance of Rosetta (34 km from the nucleus): within 15 min the Star Tracker camera detected fast particles (∼25 m s−1) while 100 μm radius particles were detected by the GIADA dust instrument ∼1 h later at a speed of 6 m s−1. The slowest were individual mm to cm sized grains observed by the OSIRIS cameras. Although the outburst originated just outside the FOV of the instruments, the source region and the magnitude of the outburst could be determined

Prevalencia de anomalìas dentarias clínicamente observables en escolares de la ...

Tesis (Dr. Cirujano Dentista)-Universidad Nacional Autónoma de Nicaragua, LeónUNAN-Leó

Walant technique in local anesthesia: indications and usefulness

En décadas anteriores se consideraba que la epinefrina producía un efecto vasoconstrictor sobre los dedos que generaba necrosis de los mismos, sin embargo, en los últimos años ha tenido mucho auge la técnica WALANT, que consiste en la infiltración de epinefrina junto a otro anestésico sin torniquete en zonas como manos y pies, para la realización de cirugías de corrección de traumas y lesiones, lo cual constituye una temática de gran controversia, por lo que en el siguiente artículo de revisión se evalúa la incidencia del éxito de la implementación de esta técnica y su impacto en el ámbito quirúrgico.In previous decades it was considered that epinephrine produced a vasoconstrictor effect on the fingers that generated necrosis of the fingers, however, in recent years the WALANT technique has been very popular, which consists of the infiltration of epinephrine together with another anesthetic without a tourniquet. in areas such as hands and feet, for the performance of trauma and injury correction surgeries, which is a subject of great controversy, for which reason the following review article evaluates the incidence of the success of the implementation of this technique and its impact in the surgical field

Current Knowledge and Computational Techniques for Grapevine Meta-Omics Analysis

Growing grapevine (Vitis vinifera) is a key contribution to the economy of many countries. Tools provided by genomics and bioinformatics did help researchers in obtaining biological knowledge about the different cultivars. Several genetic markers for common diseases were identified. Recently, the impact of microbiome has been proved to be of fundamental importance both in humans and in plants for its ability to confer protection or induce diseases. In this review we report current knowledge about grapevine microbiome, together with a description of the available computational methodologies for meta-omics analysis