Comparing powder magnetization and transport critical current of Bi,Pb(2223) tapes

The magnetic field dependence of the critical current in (Bi,Pb)/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O/sub 10+x/ tapes is compared with the magnetization response of isolated grains extracted from the tapes. Special attention is paid to the low-field behavior. The goal of the experiment is to test the widely-used hypothesis that current paths in these tapes contain both weak- and strong- linked branches, which in low field act in parallel. The data agree with this hypothesis; at temperatures above 50 K the powder magnetization drops off exponentially from the self-field to the irreversibility field, while the transport and magnetization currents in the intact tapes show an extra low-field component. Below 50 K the powder behavior becomes less straightforward, but the parallel-path picture in the tapes still holds

Gastrointestinal bleeding as the first manifestation of gastric amyloidoma: A case report

La palabra amiloidosis hace referencia a un hallazgo patológico, que abarca un espectro heterogéneo de etiologías y presentaciones clínicas. La principal característica de la amiloidosis es el depósito de fragmentos de proteínas extracelulares insolubles dentro de varios órganos, doblados anormalmente de tal manera que los hace resistentes a la digestión1. Estos depósitos afectan tanto la estructura como la función de los órganos comprometidos.Q4Q3Pacientes con amiloidosis gástricahttps://orcid.org/0000-0002-9219-4548https://orcid.org/0000-0001-5401-0018Revista Internacional - IndexadaBN

Recent trends of SST in the Western Mediterranean basins from AVHRR Pathfinder data (1985-2007)

Climate change in the Mediterranean region cannot be understood without taking into account changes in the Mediterranean Sea, which is an important source of moisture and heat for the Mediterranean climate system. Many research papers have been published in the last two decades increasing our knowledge about long-term trends and inter-annual variability of temperature and salinity in the Western Mediterranean. Although recent changes have been better documented, there remain uncertainties because different results are obtained depending on the period of time analyzed or the geographic region selected. This paper analyses the regional, seasonal and decadal variability of sea surface temperature in the Western Mediterranean basins (Northern (Ligurian Sea and Gulf of Lions), Balearic, Algerian and Alboran) by means of thermal satellite images. Monthly data from the PO.DAAC (Physical Oceanography Distributed Active Archive Center) have been processed for the period 19852007. Results show an averaged warming linear trend of 0.03 °C/yr. This rate is higher during the spring (0.06 °C/yr) in all the basins and the highest values were registered in the Northern basin in June. The study suggests that an early warming of the Sea is occurring in all the basins during the spring, with an increment of 0.51 °C in the mean SST of April, May and June over the two decades studied. The analysis of thermal anomalies confirms the warming trend with a dominance of negative anomalies during 19851996 and a dominance of positive anomalies during the last decade (19972007). Intense anomalies are more frequent in the Northern basin

Causes of Dropping out the Program of Music and Art at the Faculty of Music

The students of the Baccalaureate Program of Music and Art at the Music Faculty shows a significantpopulation decline during the first semester, so it was necessary to obtain information to understand the behavior, becausethere is no formal study to determine the causes of student dropouts%253B thus the aim of this study is to identify what are thereasons for students dropping out of the program, to provide a diagnosis to extent possible and analyze the situation togenerate strategies to rectify these variables to achieve completion of the program. This study is an exploratory diagnosticresearch with a quantitative perspective%253B a questionnaire was used as instrument, made for academic research done onabandonment and desertion. In conclusion the study shows that the main causes of dropout are a set of interrelatedvariables that show a complex cultural and socioeconomic phenomenon that reflects the general feeling in our society

Parasitic control in dogs and cats: knowledge about the major parasitic diseases in the Mexican Southeast

El objetivo del estudio fue determinar los programas de control parasitario, sanitario y conocimiento de las enfermedades parasitarias que afectan a perros y gatos de 306 propietarios de la ciudad de Escárcega, estado de Campeche, México. El total de mascotas fue de 590 perros y 149 gatos. Cada hogar tiene un promedio de 1.92 perros o 0.48 gatos con edades de 2.9 y 2.8 años, respectivamente. La mayoría de los propietarios de perros (30.8%) y gatos (25.6%) aplican algún tratamiento antihelmíntico dos veces al año. La frecuencia de tratamientos contra ectoparásitos en perros y gatos se realiza mayormente cuatro veces al año o al detectar su presencia. Los parásitos gastrointestinales son poco conocidos y la sarna es la enfermedad más mencionada. La mayoría de los propietarios de perros (85.6%) y gatos (93%) desconocen el significado de zoonosis y que sus mascotas les pueden transmitir enfermedades, lo que sugiere su bajo impacto sobre el manejo sanitario en las mascotas. Lactonas macrocíclicas como endoparasiticidas y el amitraz y propoxur como ectoparasiticidas fueron los más usados para perros y gatos.The aim of this study was to determine the programmes of parasite and sanitary control and knowledge of the parasite diseases that affect dogs and cats of 306 owners of the city of Escárcega, state of Campeche, Mexico. The total number of pets was 590 dogs and 149 cats. Each household has an average of 1.92 dogs or 0.48 cats with ages of 2.9 and 2.8 years, respectively. Most owners of dogs (30.8%) and cats (25.6%) apply some anthelmintic treatment twice a year. The frequency of treatments against ectoparasites in dogs and cats is carried out mostly four times a year or when their presence is detected. Gastrointestinal parasites are poorly known, and scabies is the most mentioned disease. Most owners of dogs (85.6%) and cats (93%) are unaware of the meaning of zoonosis and that their pets can transmit diseases to them, suggesting its low impact on health management in pets. Macrocyclic lactones as endo-parasiticides and amitraz and propoxur as ecto-parasiticides were the most used for dogs and cats

Pedigree analysis of 220 almond genotypes reveals two world mainstream breeding lines based on only three different cultivars

Loss of genetic variability is an increasing challenge in tree breeding programs due to the repeated use of a reduced number of founder genotypes. However, in almond, little is known about the genetic variability in current breeding stocks, although several cases of inbreeding depression have been reported. To gain insights into the genetic structure in modern breeding programs worldwide, marker-verified pedigree data of 220 almond cultivars and breeding selections were analyzed. Inbreeding coefficients, pairwise relatedness, and genetic contribution were calculated for these genotypes. The results reveal two mainstream breeding lines based on three cultivars: “Tuono”, “Cristomorto”, and “Nonpareil”. Descendants from “Tuono” or “Cristomorto” number 76 (sharing 34 descendants), while “Nonpareil” has 71 descendants. The mean inbreeding coefficient of the analyzed genotypes was 0.041, with 14 genotypes presenting a high inbreeding coefficient, over 0.250. Breeding programs from France, the USA, and Spain showed inbreeding coefficients of 0.075, 0.070, and 0.037, respectively. According to their genetic contribution, modern cultivars from Israel, France, the USA, Spain, and Australia trace back to a maximum of six main founding genotypes. Among the group of 65 genotypes carrying the Sf allele for self-compatibility, the mean relatedness coefficient was 0.125, with “Tuono” as the main founding genotype (24.7% of total genetic contribution). The results broaden our understanding about the tendencies followed in almond breeding over the last 50 years and will have a large impact into breeding decision-making process worldwide. Increasing current genetic variability is required in almond breeding programs to assure genetic gain and continuing breeding progress

Boxy/peanut/X bulges, barlenses and the thick part of galactic bars: What are they and how did they form?

Bars have a complex three-dimensional shape. In particular their inner part is vertically much thicker than the parts further out. Viewed edge-on, the thick part of the bar is what is commonly known as a boxy-, peanut- or X- bulge and viewed face-on it is referred to as a barlens. These components are due to disc and bar instabilities and are composed of disc material. I review here their formation, evolution and dynamics, using simulations, orbital structure theory and comparisons to observations.Comment: 21 pages, 7 figures, invited review to appear in "Galactic Bulges", E. Laurikainen, R. Peletier, D. Gadotti, (eds.), Springe

The Imaging Magnetograph eXperiment (IMaX) for the Sunrise balloon-borne solar observatory

The Imaging Magnetograph eXperiment (IMaX) is a spectropolarimeter built by four institutions in Spain that flew on board the Sunrise balloon-borne telesocope in June 2009 for almost six days over the Arctic Circle. As a polarimeter IMaX uses fast polarization modulation (based on the use of two liquid crystal retarders), real-time image accumulation, and dual beam polarimetry to reach polarization sensitivities of 0.1%. As a spectrograph, the instrument uses a LiNbO3 etalon in double pass and a narrow band pre-filter to achieve a spectral resolution of 85 mAA. IMaX uses the high Zeeman sensitive line of Fe I at 5250.2 AA and observes all four Stokes parameters at various points inside the spectral line. This allows vector magnetograms, Dopplergrams, and intensity frames to be produced that, after reconstruction, reach spatial resolutions in the 0.15-0.18 arcsec range over a 50x50 arcsec FOV. Time cadences vary between ten and 33 seconds, although the shortest one only includes longitudinal polarimetry. The spectral line is sampled in various ways depending on the applied observing mode, from just two points inside the line to 11 of them. All observing modes include one extra wavelength point in the nearby continuum. Gauss equivalent sensitivities are four Gauss for longitudinal fields and 80 Gauss for transverse fields per wavelength sample. The LOS velocities are estimated with statistical errors of the order of 5-40 m/s. The design, calibration and integration phases of the instrument, together with the implemented data reduction scheme are described in some detail.Comment: 17 figure