178 research outputs found
Densification Strategy: Sustainability Analysis of Co-Housing Typology
Densification strategy through co-living typology seems to be a sustainable solution to current global issues: increasing in human population, housing crisis and inflated prices. However, the characteristic of the typology that able to house high significant number of people on a piece of land create a dispute, especially on the dwellersâ comfort. Thus, the aim of the research is to identify the performance of the typology to the inhabitants. Components such as floor plan area, daylighting and ventilation aspects are employed in the research to justify the sustainability of the typology to the inhabitants. The components were based on the space standard, Average Daylighting Factor (ADF) and sDA (Spatial Daylight Autonomy) through Sefaira analysis and simulation, and guidelines from Manchester City Council (2017) through Manchester Residential Quality Guidelines (MRQG) and Sinha (2014) respectively. The research was focusing on ongoing construction of the Echo Street Co-Living in Manchester, UK. From the analysis, the finding generally shows the typology manages to achieve a sustainable-performance unit through area and dimension, as well as ventilation aspects, even though there is a minor flaw, especially in providing an adequate level of daylighting. The result from the research could be used as a reference to design a high performance co-living unit in the future
COVID-19, inequality and older people::Developing community-centred interventions
This paper considers the basis for a âcommunity-centredâ response to COVID-19. It highlights the pressures on communities weakened by austerity, growing inequalities, and cuts to social infrastructure. This paper examines the disproportionate impact of the pandemic on low-income communities, whilst highlighting the extent to which they have been excluded from debates about policies to limit the spread of COVID-19. This paper examines four approaches to assist the inclusion of neighbourhoods in strategies to tackle the pandemic: promoting community participation; recruiting advocates for those who are isolated; creating a national initiative for supporting community-centred activity; and developing policies for the long-term. This paper concludes with questions which society and communities will need to address given the potential continuation of measures to promote physical distancing
The Panchromatic Hubble Andromeda Treasury. Progression of Large-Scale Star Formation across Space and Time in M31
We investigate the clustering of early-type stars younger than 300 Myr on
galactic scales in M31. Based on the stellar photometric catalogs of the
Panchromatic Hubble Andromeda Treasury program that also provides stellar
parameters derived from the individual energy distributions, our analysis is
focused on the young stars in three star-forming regions, located at
galactocentric distances of about 5, 10, and 15 kpc, corresponding to the inner
spiral arms, the ring structure, and the outer arm, respectively. We apply the
two-point correlation function to our selected sample to investigate the
clustering behavior of these stars across different time- and length-scales. We
find that young stellar structure survives across the whole extent of M31
longer than 300 Myr. Stellar distribution in all regions appears to be
self-similar, with younger stars being systematically more strongly clustered
than the older, which are more dispersed. The observed clustering is
interpreted as being induced by turbulence, the driving source for which is
probably gravitational instabilities driven by the spiral arms, which are
stronger closer to the galactic centre.Comment: 10 pages, 5 figures. To appear in "LESSONS FROM THE LOCAL GROUP - A
Conference in Honour of David Block and Bruce Elmegreen" eds. Freeman, K.C.,
Elmegreen, B.G., Block, D.L. & Woolway, M. (Springer: New York
Aural polyps: What's behind them?
Introduction: Polyps in the external auditory canal (EAC) may be present due to inflammation induced by chronic otitis media. In many cases, the type of underlying otitis media is a cholesteatoma.Aim: The aim of this article is to determine the etiology of EAC polyps in patients referred to the Otology Division of a tertiary hospital in south Brazil.Materials and Methods: Cross-sectional study was conducted with a cohort of patients with otologic diseases who were evaluated from July 2001 to December 2020. Patients with unilateral or bilateral aural polyps underwent anamnesis and recorded video-otoscopy and had their online medical chart reviewed.Results:Â Of the 2432 patients evaluated, 133 (5.4%) had a polyp in the external auditory canal. Of those, 53 were excluded, leaving a final sample of 81 patients (3.3%).Discussion:Â Middle ear cholesteatoma (MEC) and non-cholesteatomatous chronic otitis media (NCCOM) were responsible for 86.3% of all polyps evaluated and the majority of diagnoses were established through surgery (76.5%).Conclusion: Symptoms associated with polyps and their aspect do not reveal the most probable etiologies making imaging exams, biopsy and surgery necessary steps in aural polyp investigation
COVID-19, Inequality and Older People: Developing Community-Centred Interventions
From MDPI via Jisc Publications RouterHistory: accepted 2021-07-27, pub-electronic 2021-07-29Publication status: PublishedFunder: Leverhulme Trust; Grant(s): RL-2019-011This paper considers the basis for a âcommunity-centredâ response to COVID-19. It highlights the pressures on communities weakened by austerity, growing inequalities, and cuts to social infrastructure. This paper examines the disproportionate impact of the pandemic on low-income communities, whilst highlighting the extent to which they have been excluded from debates about policies to limit the spread of COVID-19. This paper examines four approaches to assist the inclusion of neighbourhoods in strategies to tackle the pandemic: promoting community participation; recruiting advocates for those who are isolated; creating a national initiative for supporting community-centred activity; and developing policies for the long-term. This paper concludes with questions which society and communities will need to address given the potential continuation of measures to promote physical distancing
The Panchromatic Hubble Andromeda Treasury I: Bright UV Stars in the Bulge of M31
As part of the Panchromatic Hubble Andromeda Treasury (PHAT) multi-cycle
program, we observed a 12' \times 6.5' area of the bulge of M31 with the
WFC3/UVIS filters F275W and F336W. From these data we have assembled a sample
of \sim4000 UV-bright, old stars, vastly larger than previously available. We
use updated Padova stellar evolutionary tracks to classify these hot stars into
three classes: Post-AGB stars (P-AGB), Post-Early AGB (PE-AGB) stars and
AGB-manqu\'e stars. P-AGB stars are the end result of the asymptotic giant
branch (AGB) phase and are expected in a wide range of stellar populations,
whereas PE-AGB and AGB-manqu\'e (together referred to as the hot
post-horizontal branch; HP-HB) stars are the result of insufficient envelope
masses to allow a full AGB phase, and are expected to be particularly prominent
at high helium or {\alpha} abundances when the mass loss on the RGB is high.
Our data support previous claims that most UV-bright sources in the bulge are
likely hot (extreme) horizontal branch stars (EHB) and their progeny. We
construct the first radial profiles of these stellar populations, and show that
they are highly centrally concentrated, even more so than the integrated UV or
optical light. However, we find that this UV-bright population does not
dominate the total UV luminosity at any radius, as we are detecting only the
progeny of the EHB stars that are the likely source of the UVX. We calculate
that only a few percent of MS stars in the central bulge can have gone through
the HP-HB phase and that this percentage decreases strongly with distance from
the center. We also find that the surface density of hot UV-bright stars has
the same radial variation as that of low-mass X-ray binaries. We discuss age,
metallicity, and abundance variations as possible explanations for the observed
radial variation in the UV-bright population.Comment: Accepted for publication in Ap
PHAT Stellar Cluster Survey I. Year 1 Catalog and Integrated Photometry
The Panchromatic Hubble Andromeda Treasury (PHAT) survey is an on-going
Hubble Space Telescope (HST) multi-cycle program to obtain high spatial
resolution imaging of one-third of the M31 disk at ultraviolet through
near-infrared wavelengths. In this paper, we present the first installment of
the PHAT stellar cluster catalog. When completed, the PHAT cluster catalog will
be among the largest and most comprehensive surveys of resolved star clusters
in any galaxy. The exquisite spatial resolution achieved with HST has allowed
us to identify hundreds of new clusters that were previously inaccessible with
existing ground-based surveys. We identify 601 clusters in the Year 1 sample,
representing more than a factor of four increase over previous catalogs within
the current survey area (390 arcmin^2). This work presents results derived from
the first \sim25% of the survey data; we estimate that the final sample will
include \sim2500 clusters. For the Year 1 objects, we present a catalog with
positions, radii, and six-band integrated photometry. Along with a general
characterization of the cluster luminosities and colors, we discuss the cluster
luminosity function, the cluster size distributions, and highlight a number of
individually interesting clusters found in the Year 1 search.Comment: 26 pages, 22 figures, Accepted by Ap
- âŠ