918 research outputs found
Information and support needs of cis-women partnered with transmasculine persons during their transition : a thesis presented in partial fulfilment of the requirements for the degree of Master of Arts in Psychology at Massey University (Manawatu), New Zealand
Cis-women partnered with transmasculine persons during their transition experience their own struggles related to the transition process. A small body of previous literature has explored the experiences of cis-women with emphasis on their relationship with their partner and identity struggles, primarily involving their sexuality. Researchers have argued that the cis-partners go through their own transition and further research is needed, especially to consider the information and support needs of cis-partners. The present study sought to address this gap in literature within a New Zealand context. Semi-structured interviews were conducted with four cis-women who were partnered with their transmasculine partner during their transition. Participants were invited to share their experiences of the transition processes with an emphasis on their individual information and support needs. Thematic analysis (TA) was used to analyse the interviews allowing for similarities and differences among the participants to emerge. Analysis showed that the cis-womenâs differing relationships are all affected by the transition. Along the same lines as previous literature, their relationships with their partner and themselves were affected by heteronormative assumptions. Some of the cis-women questioned their sexuality and belonging within the lesbian community. The current study provided new insights into the experiences of cis-women with medical professionals, friends, family, and peer relationships. As New Zealand lacks in consistent guidelines for transitioning and surgical procedures, there were frustrations experienced with medical professionals, with a lack of credible information on what to expect from the transition. The cis-women also experienced struggles with obtaining non-judgemental support from their friends and family, in addition to having their time within these relationships consumed by the transition. This creates barriers to utilising their support through difficult transition experiences. Due to the lack of non-judgemental support, the cis-women sought other partners however they were not always accessible to them. When peer relationships were possible, they were able to provide the support participants needed and insights into the transition process that were helpful. Two reoccurring needs emerge from the analysis: credible information and non-judgemental support
The Open Cluster NGC 7789: I. Radial Velocities for Giant Stars
A total of 597 radial-velocity observations for 112 stars in the ~1.6 Gyr old
open cluster NGC 7789 have been obtained since 1979 with the radial velocity
spectrometer at the Dominion Astrophysical Observatory. The mean cluster radial
velocity is -54.9 +/- 0.12 km/s and the dispersion is 0.86 km/s, from 50
constant-velocity stars selected as members from this radial-velocity study and
the proper motion study of McNamara and Solomon (1981). Twenty-five stars (32%)
among 78 members are possible radial-velocity variable stars, but no orbits are
determined because of the sparse sampling. Seventeen stars are radial-velocity
non-members, while membership estimates of six stars are uncertain.
There is a hint that the observed velocity dispersion falls off at large
radius. This may due to the inclusion of long-period binaries preferentially in
the central area of the cluster. The known radial-velocity variables also seem
to be more concentrated toward the center than members with constant velocity.
Although this is significant at only the 85% level, when combined with similar
result of Raboud and Mermilliod (1994) for three other clusters, the data
strongly support the conclusion that mass segregation is being detected.Comment: 16 pages (including 3 figures) and 3 table
dFatp regulates nutrient distribution and longâterm physiology in Drosophila
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/94477/1/acel864.pd
Iron abundances from high-resolution spectroscopy of the open clusters NGC 2506, NGC 6134, and IC 4651
This is the first of a series of papers devoted to derive the metallicity of
old open clusters in order to study the time evolution of the chemical
abundance gradient in the Galactic disk. We present detailed iron abundances
from high resolution (R~40000) spectra of several red clump and bright giant
stars in the open clusters IC 4651, NGC 2506 and NGC 6134. We observed 4 stars
of NGC 2506, 3 stars of NGC 6134, and 5 stars of IC 4651 with the FEROS
spectrograph at the ESO 1.5 m telescope; moreover, 3 other stars of NGC 6134
were observed with the UVES spectrograph on Kueyen (VLT UT2). After excluding
the cool giants near the red giant branch tip (one in IC 4651 and one in NGC
2506), we found overall [Fe/H] values of -0.20 +/- 0.01, rms = 0.02 dex (2
stars) for NGC 2506, +0.15 +/- 0.03, rms = 0.07 dex (6 stars) for NGC 6134, and
+0.11 +/- 0.01, rms = 0.01 dex (4 stars) for IC 4651. The metal abundances
derived from line analysis for each star were extensively checked using
spectrum synthesis of about 30 to 40 Fe I lines and 6 Fe II lines. Our
spectroscopic temperatures provide reddening values in good agreement with
literature data for these clusters, strengthening the reliability of the
adopted temperature and metallicity scale. Also, gravities from the Fe
equilibrium of ionization agree quite well with expectations based on cluster
distance moduli and evolutionary masses.Comment: 13 pages, 7 figures, uses aa.cls, accepted for publication on
Astronomy & Astrophysic
A UBVI and uvbyCaHbeta Analysis of the Intermediate-Age Open Cluster, NGC 5822
NGC 5822 is a richly populated, moderately nearby, intermediate-age open
cluster covering an area larger than the full moon on the sky. A CCD survey of
the cluster on the UBVI and uvbyCaHbeta systems shows that the cluster is
superposed upon a heavily reddened field of background stars with E(B-V) > 0.35
mag, while the cluster has small and uniform reddening at E(b-y) = 0.075 +/-
0.008 mag or E(B-V) = 0.103 +/- 0.011 mag, based upon 48 and 61 probable A and
F dwarf single-star members, respectively. The errors quoted include both
internal photometric precision and external photometric uncertainties. The
metallicity derived from 61 probable single F-star members is [Fe/H] = -0.058
+/- 0.027 (sem) from m_1 and 0.010 +/- 0.020 (sem) from hk, for a weighted
average of [Fe/H] = -0.019 +/- 0.023, where the errors refer to the internal
errors from the photometry alone. With reddening and metallicity fixed, the
cluster age and apparent distance modulus are obtained through a comparison to
appropriate isochrones in both VI and BV, producing 0.9 +/- 0.1 Gyr and 9.85
+/- 0.15, respectively. The giant branch remains dominated by two distinct
clumps of stars, though the brighter clump seems a better match to the
core-He-burning phase while the fainter clump straddles the first-ascent red
giant branch. Four potential new clump members have been identified, equally
split between the two groups. Reanalysis of the UBV two-color data extending
well down the main sequence shows it to be optimally matched by reddening near
E(B-V) = 0.10 rather than the older value of 0.15, leading to [Fe/H] between
-0.16 and 0.00 from the ultraviolet excess of the unevolved dwarfs. The impact
of the lower reddening and younger age of the cluster on previous analyses of
the cluster is discussed.Comment: 20 figures and 5 tables (portions of data tables 3 and 5 only
Storage oil hydrolysis during early seedling growth
Storage oil breakdown plays an important role in the life cycle of many plants by providing the carbon skeletons that support seedling growth immediately following germination. This metabolic process is initiated by lipases (EC: 3.1.1.3), which catalyze the hydrolysis of triacylglycerols (TAGs) to release free fatty acids and glycerol. A number of lipases have been purified to near homogeneity from seed tissues and analysed for their in vitro activities. Furthermore, several genes encoding lipases have been cloned and characterised from plants. However, only recently has data been presented to establish the molecular identity of a lipase that has been shown to be required for TAG breakdown in seeds. In this review we briefly outline the processes of TAG synthesis and breakdown. We then discuss some of the biochemical literature on seed lipases and describe the cloning and characterisation of a lipase called SUGAR-DEPENDENT1, which is required for TAG breakdown in Arabidopsis thaliana seeds
A Chemical Abundance Study of 10 Open Clusters Based on WIYN-Hydra Spectroscopy
We present a detailed chemical abundance study of evolved stars in 10 open
clusters based on Hydra multi-object echelle spectra obtained with the WIYN
3.5m telescope. From an analysis of both equivalent widths and spectrum
synthesis, abundances have been determined for the elements Fe, Na, O, Mg, Si,
Ca, Ti, Ni, Zr, and for two of the 10 clusters, Al and Cr. To our knowledge,
this is the first detailed abundance analysis for clusters NGC 1245, NGC 2194,
NGC 2355 and NGC 2425. These 10 clusters were selected for analysis because
they span a Galactocentric distance range Rgc~9-13 kpc, the approximate
location of the transition between the inner and outer disk. Combined with
cluster samples from our previous work and those of other studies in the
literature, we explore abundance trends as a function of cluster Rgc, age, and
[Fe/H]. The [Fe/H] distribution appears to decrease with increasing Rgc to a
distance of ~12 kpc, and then flattens to a roughly constant value in the outer
disk. Cluster average element [X/Fe] ratios appear to be independent of Rgc,
although the picture for [O/Fe] is more more complicated by a clear trend of
[O/Fe] with [Fe/H] and sample incompleteness. Other than oxygen, no other
element [X/Fe] exhibits a clear trend with [Fe/H]; likewise, there does not
appear to be any strong correlation between abundance and cluster age. We
divided clusters into different age bins to explore temporal variations in the
radial element distributions. The radial metallicity gradient appears to have
flattened slightly as a function of time, as found by other studies. There is
also indication that the transition from the inner disk to the outer disk
occurs at different Galactocentric radii for different age bins. (Abridged.)Comment: 35 pages, 12 figures, 18 tables; published in The Astronomical
Journal (http://stacks.iop.org/1538-3881/142/59
Characteristics and outcome of patients with newly diagnosed advanced or metastatic lung cancer admitted to intensive care units (ICUs)
BACKGROUND: Although patients with advanced or metastatic lung cancer have poor prognosis, admission to the ICU for management of life-threatening complications has increased over the years. Patients with newly diagnosed lung cancer appear as good candidates for ICU admission, but more robust information to assist decisions is lacking. The aim of our study was to evaluate the prognosis of newly diagnosed unresectable lung cancer patients. METHODS: A retrospective multicentric study analyzed the outcome of patients admitted to the ICU with a newly diagnosed lung cancer (diagnosis within the month) between 2010 and 2013. RESULTS: Out of the 100 patients, 30 had small cell lung cancer (SCLC) and 70 had non-small cell lung cancer. (Thirty patients had already been treated with oncologic treatments.) Mechanical ventilation (MV) was performed for 81 patients. Seventeen patients received emergency chemotherapy during their ICU stay. ICU, hospital, 3- and 6-month mortality were, respectively, 47, 60, 67 and 71%. Hospital mortality was 60% when invasive MV was used alone, 71% when MV and vasopressors were needed and 83% when MV, vasopressors and hemodialysis were required. In multivariate analysis, hospital mortality was associated with metastatic disease (OR 4.22 [1.4-12.4]; pâ=â0.008), need for invasive MV (OR 4.20 [1.11-16.2]; pâ=â0.030), while chemotherapy in ICU was associated with survival (OR 0.23, [0.07-0.81]; pâ=â0.020). CONCLUSION: This study shows that ICU management can be appropriate for selected newly diagnosed patients with advanced lung cancer, and chemotherapy might improve outcome for patients with SCLC admitted for cancer-related complications. Nevertheless, tumors' characteristics, numbers and types of organ dysfunction should be taken into account in the decisional process before admitting these patients in ICU.Peer reviewe
In Search of Possible Associations between Planetary Nebulae and Open Clusters
We consider the possibility of cluster membership for 13 planetary nebulae
that are located in close proximity to open clusters lying in their lines of
sight. The short lifetimes and low sample size of intermediate-mass planetary
nebulae with respect to nearby open clusters conspire to reduce the probability
of observing a true association. Not surprisingly, line of sight coincidences
almost certainly exist for 7 of the 13 cases considered. Additional studies are
advocated, however, for 6 planetary nebula/open cluster coincidences in which a
physical association is not excluded by the available evidence, namely M
1-80/Berkeley 57, NGC 2438/NGC 2437, NGC 2452/NGC 2453, VBRC 2 & NGC 2899/IC
2488, and HeFa 1/NGC 6067. A number of additional potential associations
between planetary nebulae and open clusters is tabulated for reference
purposes. It is noteworthy that the strongest cases involve planetary nebulae
lying in cluster coronae, a feature also found for short-period cluster
Cepheids, which are themselves potential progenitors of planetary nebulae.Comment: Accepted for publication in PASP (December 2007
- âŠ