Physical Nature of the [S II]-bright Shell Nebulae N70 and N185

N70 and N185 are two large, ≥100 pc in diameter, shell nebulae in the Large Magellanic Cloud (LMC). Their high [S II]/Hα ratios rival those of supernova remnants (SNRs), but they are not con- firmed as SNRs. To study their physical nature, we have obtained XMM-Newton X-ray observations and high-dispersion long-slit echelle spectroscopic observations of these two nebulae. The X-ray spectra of both nebulae can be well interpreted with an optically thin thermal (∼0.2 keV) plasma with the average LMC abundance in a collisional ionization equilibrium. N70 encompasses the OB association LH114. Although N70 has a modest expansion velocity and essentially thermal radio emission, its diffuse X-ray luminosity, ∼ 6.1 × 1035 erg s−1 , is higher than that from a quiescent superbubble with N70’s density, size, and expansion velocity; thus, N70 is most likely a superbubble that is recently energized by an interior SNR. N185 does not contain any known OB association, and its X-ray luminosity is an order of magnitude lower than expected if it is a quiescent superbubble. N185 has nonthermal radio emission and has high-velocity material expanding at nearly 200 km s−1 , similar to many known SNRs in the LMC. Its X-ray luminosity, ∼ 1.9 × 1035 erg s−1 , is also consistent with that of an evolved SNR. We therefore suggest that N185 is energized by a recent supernova

Reflection: Beverly Rosa Williams

https://digitalcommons.salve.edu/legacy1968/1006/thumbnail.jp

Utopian Thought as a Factor in Social Change

Submitted in partial fulfillment of the requirements for a Bachelor of Arts Degree, Sociology Department, Salve Regina College, Newport, Rhode Island, May 6, 1968.https://digitalcommons.salve.edu/legacy1968/1045/thumbnail.jp

Resolving SNR 0540-6944 from LMC X-1 with Chandra

We examine the supernova remnant (SNR) 0540-697 in the Large Magellanic Cloud (LMC) using data from the Chandra ACIS. The X-ray emission from this SNR had previously been hidden in the bright emission of nearby X-ray binary LMC X-1; however, new observations with Chandra can finally reveal the SNR's structure and spectrum. We find the SNR to be a thick-shelled structure about 19 pc in diameter, with a brightened northeast region. Spectral results suggest a temperature of 0.31 keV and an X-ray luminosity (0.3-3.0 keV) of 8.4 x 10^33 erg/s. We estimate an age of 12,000-20,000 yr for this SNR, but note that this estimate does not take into account the possibility of cavity expansion or other environmental effects.Comment: 8 pages, 2 GIF figures. Submitted to ApJL. Replaced with minor revisions from referee comment

RepoGraph : a novel semantic code exploration tool for Python repositories based on knowledge graphs and deep learning

This work presents RepoGraph, an integrated semantic code exploration web tool that combines information extraction, knowledge graphs, and deep learning models. It offers new capabilities for software developers (from academia and industry) to represent and query Python repositories. Unlike existing tools, RepoGraph not only provides a novel search interface powered by deep learning techniques but also exposes the underlying features and representations of repositories to users. Additionally, it offers several interactive visualizations. We also introduce RepoPyOnto, a new ontology that captures the features of Python code repositories and is used by RepoGraph for representing the captured knowledge. Finally, we successfully evaluate RepoGraph against several criteria, including function summarization performance, the correctness and relevance of search results, as well as the processing time for constructing graphs of various sizes.Postprin

The mental health of Filipino-born women 5 and 14 years after they have given birth in Australia: a longitudinal study

It has been suggested that Filipino brides may be 'at risk' of social isolation and mental health impairment after migrating to Australia to marry Australian men. This paper examines the mental health of a cohort of Filipino and Australian-born women who became mothers in Australia, and investigates the relationship between place of birth, social network size and symptoms of poor mental health. The data was taken from the Mater-University of Queensland Study of Pregnancy (MUSP), a longitudinal study of mothers and children instigated in 1981. Symptoms of anxiety and depression and social network size were assessed at their first clinic visit (FCV), and followed up at 5 and 14 years. Filipino-born mothers had smaller social networks at the birth of their child, and reported more symptoms of anxiety arid depression at FCV and 5 years follow-up (F/U), but did not differ from their Australian counterparts 14 years later. We conclude that Filipino-born migrants experience greater distress and poorer social networks than Australian-born mothers in the early years after they have given birth to a child in Australia. Further, that over a period of time, the decrease in mental health symptoms indicates the adaptation of Filipino-born women to their new environment

Violencia, memoria, justicia: una entrevista a Pilar Calveiro

A fines de mayo de 2012, Pilar Calveiro visitó la Universidad de California, Davis en el marco de un seminario de posgrado titulado "Estudios de la memoria direcciones críticas", ofrecido en colaboración con la profesora Marta Cabrera y los estudiantes de la maestría en Estudios Culturales de la Pontificia Universidad Javeriana de Bogotá, Colombia. La entrevista fue dirigida desde Davis y contó con la participación de Michael J. Lazzara (UC Davis), María Rosa Olivera-Williams (Universidad de Notre Dame) y Mónica Szurmuk (Universidad de Buenos Aires). Cada entrevistador se ocupó de un área temática central de la obra de la profesora Calveiro.Fil: Lazzara, Michael. University of California at Davis; Estados UnidosFil: Olivera Williams, María Rosa. University of Notre Dame; Estados UnidosFil: Szurmuk, Mónica. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin