1,724,816 research outputs found
Sims, Robert John, S-5253
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/417064Surname: SIMS. Given Name(s) or Initials: ROBERT JOHN. Military Service Number or Last Known Location: S-5253. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 49667.239746
Item: [2016.0049.49325] "Sims, Robert John, S-5253
Signing Statement – R204, H.5253
No full textThis written statement addresses bill R204, H.5253, a Joint Resolution that forgives days missed due to inclement weather in several school districts across the state. The governor sometimes releases a written statement alongside signing a bill with remarks on the bill, including concerns or limitations
The localized chemical pollution in NGC 5253 revisited: results from deep echelle spectrophotometry¹
Get PDFWe present echelle spectrophotometry of the blue compact dwarf galaxy NGC 5253 obtained with the VLT UVES. We have measured the intensities of a large number of permitted and forbidden emission lines in four zones of the central part of the galaxy.We detect faint C ɪɪ and O ɪɪ recombination lines, the first time that these are unambiguously detected in a dwarf starburst galaxy. The physical conditions of the ionized gas have been derived using a large number of different line intensity ratios. Chemical abundances of He, N, O, Ne, S, Cl, Ar, and Fe have been determined following standard methods. C⁺⁺ and O⁺⁺ abundances have been derived from pure recombination lines and are larger than those obtained from collisionally excited lines (from 0.30 to 0.40 dex for C⁺⁺ and from 0.19 to 0.28 dex for O⁺⁺). This result is consistent with a temperature fluctuation parameter (t²) between 0.050 and 0.072.We confirm previous results that indicate the presence of a localized N enrichment in certain zones of NGC 5253 and detect a possible slight He overabundance in the same zones. The enrichment pattern agrees with that expected for the
pollution by the ejecta ofWolf-Rayet (W-R) stars. The amount of enriched material needed to produce the observed overabundance is consistent with the mass lost by the number ofW-R stars estimated in the starbursts.We discuss the possible origin of the difference between abundances derived from recombination and collisionally excited lines (the so-called abundance discrepancy problem) in H ɪɪ regions, finding that a recent hypothesis based on the delayed enrichment by SN ejecta inclusions seems not to explain the observed features
Learn, Participate, Lead: Engaging Residents in Comprehensive Planning
No full textReport and presentation completed by students enrolled in PA 5253: Planning and Participation Processes, taught by Carissa Schively Slotterback in fall 2014.This project was completed as part of a year-long partnership between the City of Rosemount and the University of Minnesota’s Resilient Communities Project (http://www.rcp.umn.edu). Every 10 years, counties, cities, and townships in the Twin Cities metropolitan area are required to update their comprehensive plans, which guide transportation, utility, land use, recreation, and housing policy and planning for the coming decade. As Rosemount embarked on the process of revising its plan for submittal to the Metropolitan Council in 2018, the City sought to re-evaluate how it could meaningfully engage residents in shaping their community. The goal of this project was to develop a proposal for a broadly inclusive public engagement process for Rosemount’s upcoming 2040 Comprehensive Plan update. In collaboration with city project lead Kim Lindquist, Community Development Director for the City of Rosemount, a team of students in PA 5253: Planning and Participation Processes designed a unique participation process that the City of Rosemount could implement over the coming years to foster communication and collaboration between the City and residents as they plan for the years ahead. A final report and presentation from the project is available.This project was supported by the Resilient Communities Project (RCP), a program at the University of Minnesota that convenes the wide-ranging expertise of U of M faculty and students to address strategic local projects that advance community resilience and sustainability. RCP is a program of the Center for Urban and Regional Affairs (CURA). More information at http://www.rcp.umn.eduStudents enrolled in PA 5253. (2014). Learn, Participate, Lead: Engaging Residents in Comprehensive Planning. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/180476
The NGC 5253 star cluster system - I. Standard modelling and infrared-excess sources
No full textUsing high-resolution Hubble Space Telescope data, we re-examine the fundamental properties (ages, masses and extinction values) of the rich star cluster population in the dwarf starburst galaxy NGC 5253. The gain in resolution compared to previous studies is of order a factor of 2 in both spatial dimensions, while our accessible wavelength range transcends previous studies by incorporation of both near-ultraviolet and near-infrared (IR) passbands. We apply spectral synthesis treatments based on two different simple stellar population model suites to our set of medium-, broad-band and H alpha images to gain an improved physical understanding of the IR-excess flux found for a subset of young clusters (30 of 149). With the caveat that our models are based on fully sampled stellar mass functions, the NGC 5253 cluster population is dominated by a significant number of relatively low-mass (M-cl less than or similar to a few x 10(4) M-circle dot) objects with ages ranging from a few x 10(6) to a few x 10(7) yr, which is in excellent agreement with the starburst age of the host galaxy. The IR-excess clusters are almost all found in this young age range and have masses of up to a few x 10(4) M-circle dot. The IR excess in the relatively low-mass NGC 5253 clusters is most likely caused by a combination of stochastic sampling effects and colour variations due to the presence of either luminous red or pre-main-sequence stars. We also find a small number of intermediate-age (similar to 1 Gyr old), similar to 10(5) M-circle dot clusters, as well as up to a dozen massive, similar to 10 Gyr old globular clusters. Their presence supports the notion that NGC 5253 is a very active galaxy that has undergone multiple episodes of star cluster formation.Astronomy & AstrophysicsSCI(E)6ARTICLE32917-293243
Linked collectors and determiners for: Palaeozoological Collections (PZ), Swedish Museum of Natural History (NRM).
No full textNatural history specimen data linked to collectors and determiners held within, "Palaeozoological Collections (PZ), Swedish Museum of Natural History (NRM)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="http://bionomia.net/dataset/20ab8294-5253-46ca-bdb2-eab1b5e75657">https://bionomia.net/dataset/20ab8294-5253-46ca-bdb2-eab1b5e75657</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/20ab8294-5253-46ca-bdb2-eab1b5e75657">https://gbif.org/dataset/20ab8294-5253-46ca-bdb2-eab1b5e75657</a>. Formatted as a Frictionless Data package
PowerUp 2018: Engaging Residents in Comprehensive Planning
No full textReport and presentation completed by students enrolled in PA 5253: Planning and Participation Processes, taught by Carissa Schively Slotterback in fall 2014.This project was completed as part of a year-long partnership between the City of Rosemount and the University of Minnesota’s Resilient Communities Project (http://www.rcp.umn.edu). Every 10 years, counties, cities, and townships in the Twin Cities metropolitan area are required to update their comprehensive plans, which guide transportation, utility, land use, recreation, and housing policy and planning for the coming decade. As Rosemount embarked on the process of revising its plan for submittal to the Metropolitan Council in 2018, the City sought to re-evaluate how it could meaningfully engage residents in shaping their community. The goal of this project was to develop a proposal for a broadly inclusive public engagement process for Rosemount’s upcoming 2040 Comprehensive Plan update. In collaboration with city project lead Kim Lindquist, Community Development Director for the City of Rosemount, a team of students in PA 5253: Planning and Participation Processes designed a unique participation process that the City of Rosemount could implement over the coming years to foster communication and collaboration between the City and residents as they plan for the years ahead. A final report and presentation from the project is available.This project was supported by the Resilient Communities Project (RCP), a program at the University of Minnesota that convenes the wide-ranging expertise of U of M faculty and students to address strategic local projects that advance community resilience and sustainability. RCP is a program of the Center for Urban and Regional Affairs (CURA). More information at http://www.rcp.umn.eduStudents enrolled in PA 5253. (2014). PowerUp 2018: Engaging Residents in Comprehensive Planning. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/180473
The distance to NGC 5253 and the absolute magnitude at maximum of SN 1972E
Get PDFWe have determined the distance to NGC 5253 using the relationship between velocity dispersion and the integrated Hβ luminosity for giant HII regions. We find a distance of 4.6 +/- 0.7 Mpc, or a true distance modulus (m - M)_0_ = 28.31 +/- 0.30. This implies an absolute magnitude at maximum of M_B_ = - 19.90 +/- 0.35 for the extensively studied type Ia supernova SN1972E in NGC 5253
The localized chemical pollution in ngc 5253 revisited: results from deep echelle spectrophotometry1
Get PDFWe present echelle spectrophotometry of the blue compact dwarf galaxy NGC 5253 obtained with the VLT UVES. We have measured the intensities of a large number of permitted and forbidden emission lines in four zones of the central part of the galaxy.We detect faint C II and O II recombination lines, the first time that these are unambiguously detected in a dwarf starburst galaxy. The physical conditions of the ionized gas have been derived using a large
number of different line intensity ratios. Chemical abundances of He, N, O, Ne, S, Cl, Ar, and Fe have been determined following standard methods. C++ and O++ abundances have been derived from pure recombination lines and are larger than those obtained from collisionally excited lines (from 0.30 to 0.40 dex for C++ and from 0.19 to 0.28 dex for O++). This result is consistent with a temperature fluctuation parameter (t 2) between 0.050 and 0.072.We confirm previous results that indicate the presence of a localized N enrichment in certain zones of NGC 5253 and detect a possible slight He overabundance in the same zones. The enrichment pattern agrees with that expected for the pollution by the ejecta ofWolf-Rayet (W-R) stars. The amount of enriched material needed to produce the observed overabundance is consistent with the mass lost by the number ofW-R stars estimated in the starbursts.We discuss the possible origin of the difference between abundances derived from recombination and collisionally excited lines (the so-called abundance discrepancy problem) in H II regions, finding that a recent hypothesis based on the delayed enrichment by SN ejecta inclusions seems not to explain the observed features
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