Multiple Sources toward the High-mass Young Star S140 IRS1

S140 IRS1 is a remarkable source where the radio source at the center of the main bipolar molecular outflow in the region is elongated perpendicular to the axis of the outflow, an orientation opposite to that expected if the radio source is a thermal jet exciting the outflow. We present results of 1.3 cm continuum and H2O maser emission observations made with the VLA in its A configuration toward this region. In addition, we also present results of continuum observations at 7 mm and re-analyse observations at 2, 3.5 and 6 cm (previously published). IRS 1A is detected at all wavelengths, showing an elongated structure. Three water maser spots are detected along the major axis of the radio source IRS 1A. We have also detected a new continuum source at 3.5 cm (IRS 1C) located ~0.6'' northeast of IRS 1A. The presence of these two YSOs (IRS 1A and 1C) could explain the existence of the two bipolar molecular outflows observed in the region. In addition, we have also detected three continuum clumps (IRS 1B, 1D and 1E) located along the major axis of IRS 1A. We discuss two possible models to explain the nature of IRS 1A: a thermal jet and an equatorial wind.Comment: 17 pages, 4 figures, to be published in A

Time series of high resolution spectra of SN 2014J observed with the TIGRE telescope

We present a time series of high resolution spectra of the Type Ia supernova 2014J, which exploded in the nearby galaxy M82. The spectra were obtained with the HEROS echelle spectrograph installed at the 1.2 m TIGRE telescope. We present a series of 33 spectra with a resolution of R = 20, 000, which covers the important bright phases in the evolution of SN 2014J during the period from January 24 to April 1 of 2014. The spectral evolution of SN 2014J is derived empirically. The expansion velocities of the Si II P-Cygni features were measured and show the expected decreasing behaviour, beginning with a high velocity of 14,000 km/s on January 24. The Ca II infrared triplet feature shows a high velocity component with expansion velocities of > 20, 000 km/s during the early evolution apart from the normal component showing similar velocities as Si II. Further broad P-Cygni profiles are exhibited by the principal lines of Ca II, Mg II and Fe II. The TIGRE SN 2014J spectra also resolve several very sharp Na I D doublet absorption components. Our analysis suggests interesting substructures in the interstellar medium of the host galaxy M82, as well as in our Milky Way, confirming other work on this SN. We were able to identify the interstellar absorption of M82 in the lines of Ca II H & K at 3933 and 3968 A as well as K I at 7664 and 7698 A. Furthermore, we confirm several Diffuse Interstellar Bands, at wavelengths of 6196, 6283, 6376, 6379 and 6613 A and give their measured equivalent widths.Comment: 11 pages, 10 figures, accepted for publication in MNRA

Focusing on ICT in Rural and Regional Education in Australia

National priorities set by an Australian ministerial taskforce provide clear guidelines to develop pedagogy that integrates ICT. Although these guidelines do not specifically address rural and regional schools needs, the two priorities: promoting pedagogic leadership and creating new learning environments, are of particular interest. But how are these priorities reflected in the realities of rural and regional schools? Focus group interviews were conducted at a selection of rural and regional schools in each state and territory across Australia. These provided teachers, parents and students with the opportunity to identify key issues in relation to ICT in their schools. Issues identified by the focus groups were; the state of equipment in schools, comparability between home and school ICT experiences for students, pedagogical approaches, leadership, professional development and availability of ICT specialist teachers

Clima laboral y síndrome de burnout en trabajadores de instituciones de educación superior

Objective. To determine the relationship between the workplace environment and the onset of burnout syndrome in a group of workers from higher education institutes. Methods. Observational, descriptive, cross-sectional research with a correlational descriptive non-experimental design, for data collection two Likert-type scales were used: Palma workplace environment scale and Maslach burnout inventory. The sample consisted of 51 workers, who were selected through a non-probability convenience sampling. Results. A favorable work environment was evidenced in 49 % (25) and unfavorable in 3.9 % (2); 39.2 % (20) experienced the burnout syndrome as medium and 29.4 % (15) as low. The existence of a weak negative correlation between workplace environment and burnout syndrome was found (Rho = -0.377; p = 0.006); weak and significant negative correlation between workplace environment and the exhaustion dimension (Rho = -0.331; p = 0.018), non-significant null correlation with the depersonalization dimension (Rho = -0.251; p = 0.076) and a weak positive correlation with the achievement personal dimension (Rho = 0.357; p = 0.010). Conclusion. A favorable climate was found in almost half of the workers and average burnout syndrome in almost a third of them. A significant and weak negative relationship was found between both variables.Objetivo. Determinar la relación entre el clima laboral y la aparición del síndrome de burnout en un grupo de trabajadores de instituciones de educación superior. Métodos. Investigación de tipo observacional, descriptivo, transversal, con un diseño no experimental, descriptivo y correlacional. Para la recolección de datos se utilizaron dos escalas de Likert: clima laboral de Palma y el inventario de burnout de Maslach. La muestra fue de 51 trabajadores, quiénes fueron seleccionados a través de un muestreo no probabilístico por conveniencia. Resultados. Se evidenció un clima laboral favorable en un 49 % (25) y desfavorable en un 3,9 % (2); el 39,2 % (20) percibió el síndrome de burnout como medio y el 29,4 % (15) como bajo. Se comprobó la existencia de una correlación débil negativa entre el clima laboral y el síndrome de burnout (Rho = -0,377; p = 0,006); correlación negativa débil y significativa del clima laboral con la dimensión agotamiento (Rho = -0,331; p = 0,018), correlación nula no significativa con la dimensión despersonalización (Rho = -0,251; p = 0,076) y una correlación débil positiva con la dimensión realización personal (Rho = 0,357; p = 0,010). Conclusión. Se encontró un clima favorable en casi la mitad de los trabajores y síndrome de burnout medio en casi un tercio de ellos. Además, se evidenció una relación significativa y negativa débil entre ambas variables

Morphological Classification of Galaxies by Shapelet Decomposition in the Sloan Digital Sky Survey

We describe application of the `shapelet' linear decomposition of galaxy images to morphological classification using images of $\sim$ 3000 galaxies from the Sloan Digital Sky Survey. After decomposing the galaxies we perform a principal component analysis to reduce the number of dimensions of the shapelet space to nine. We find that each of these nine principal components contains unique morphological information, and give a description of each principal component's contribution to a galaxy's morphology. We find that galaxies of differing Hubble type separate cleanly in the shapelet space. We apply a Gaussian mixture model to the 9-dimensional space spanned by the principal components and use the results as a basis for classification. Using the mixture model, we separate galaxies into seven classes and give a description of each class's physical and morphological properties. We find that several of the mixture model classes correlate well with the traditional Hubble types both in their morphology and their physical parameters (e.g., color, velocity dispersions, etc.). In addition, we find an additional class of late-type morphology but with high velocity dispersions and very blue color; most of these galaxies exhibit post-starburst activity. This method provides an objective and quantitative alternative to traditional and subjective visual classification.Comment: 21 pages, 16 figures, accepted by AJ, minor changes per the referee's comment

The Effect of Conditional Cash Transfers on the Prepaid and Postpaid Expenditures of Internet and Cellular Services: The Case of Filipino Households

Technology has been playing a large role in the lives of households regardless of income. How, then, do poor families value the importance of internet and cellular services due to the existence of outcome-improving or outcome-worsening effects associated with these services? At the same time, since the Pantawid Pamilyang Pilipino Program (4Ps) substantially affects its beneficiaries’ household expenditures, assessing its effectiveness concerning its objectives is important. Most literature on how poor households spend their cash transfers is centered on directly linked goods such as health and education. However, the relationship between CCTs and expenditures on goods that play a more indirect yet increasing role in the lives of poor households (e.g., internet and cellular services) has yet to be explored. Using the 2018 Family Income and Expenditure Survey (FIES) with the 4Ps program serving as the treatment, a propensity score matching methodology is applied to compare beneficiaries’ expenditures on prepaid and postpaid internet and cellular services with non-beneficiaries via Average Treatment Effects on the Treated (ATT)