37 research outputs found
Plant species first recognised as naturalised for New South Wales in 2002 and 2003, with additional comments on species recognised as naturalised in 2000â2001
Information is provided on the taxonomy and distribution of 71 taxa of naturalised or naturalising plants newly recorded for the state of New South Wales during the period 1 January 2002 to 31 December 2003. Of these taxa, 32 are new records for Australia (prefaced with a â ). These species are: Abutilon pictum, Acanthus mollis, â Aesculus indica (naturalising), Agapanthus praecox subsp. orientalis, Ajuga reptans, â Anigozanthos flavidus, Aquilegia vulgaris, Arbutus unedo, â Athertonia diversifolia (naturalising), â Bergenia x schmidtii (naturalising), Bromus catharticus subsp. stamineus, Bryophyllum daigremontianum, Bryophyllum fedtschenkoi, Calyptocarpus vialis, â Ceiba speciosa (naturalising), Cereus uruguayanus, â Cestrum x cultum, â Chamaecyparis lawsoniana, Cistus salviifolius, â Clematis montana, â Coprosma x cunninghamii, Coprosma robusta, Cornus capitata, Cotoneaster simonsii, Cotoneaster x watereri group, Crinum moorei, Cupressus lusitanica, â Cylindropuntia fulgida var. mamillata forma monstrosa, â Cylindropuntia prolifera, Cylindropuntia tunicata, Desmanthus virgatus, Drosanthemum candens, â Elaeagnus umbellata (naturalising), â Eragrostis trichophora, â Eupatorium lindleyanum, â Gibasis pellucida, Glechoma hederacea, â Hesperis matronalis, Hieracium aurantiacum subsp. carpathicola, â Inga edulis (naturalising), â Juniperus conferta (naturalising), â Justicia caudata, Lamium galeobdolon, Lathyrus tingitanus, â Lysimachia fortunei, â Maackia amurensis, â Monstera deliciosa, â Murdannia keisak, Odontonema tubaeforme, Oxalis vallicola, Phoenix canariensis, â Physostegia virginiana, Pinus patula, Pittosporum eugenioides, â Pittosporum ralphii, Pittosporum tenuifolium, Plectranthus ecklonii, â Potentilla vesca, â Prunus campanulata, â Rhododendron ponticum, Rosa luciae, Rubus rugosus, Ruellia squarrosa, â Senna multijuga, Stapelia gigantea, Stephanophysum longifolium, Strobilanthes anisophylla, â Tabebuia chrysotricha, â Tabebuia impetiginosa, â Tradescantia pallida and Ulmus x hollandica. Additional notes and name changes are recorded for plants first recognised as naturalised for New South Wales over the period 2000â2001. The identification of several naturalised taxa occurring in New South Wales has been corrected. Plants formerly identified as Pinus nigra var. corsicana are now considered to be Pinus halepensis; Cylindropuntia arbuscula is Cylindropuntia kleiniae, Cylindropuntia tunicata is Cylindropuntia rosea, Abrus precatorius subp. precatorius is now Abrus precatorius subsp. africanus and Cotoneaster ?horizontalis is Cotoneaster microphyllus. Further field studies have revealed that Cylindropuntia leptocaulis, Cylindropuntia spinosior, Hypericum kouytchense and Chamaesyce ophthalmica are more widespread than previously thought
Macroscopy of specimens from the head and neck
Macroscopic examination of surgical resections from the head and neck may be difficult due to the complex anatomy of this area. Recognition of normal anatomical structures is essential for accurate assessment of the extent of a disease process. Communication with the surgical team, correct specimen orientation and sampling are critical for assessment and the importance of radiological and clinical correlation is emphasised. Tumour involvement at each subsite is highlighted with reference to where there are implications on pathological staging and the potential need for adjuvant therapy
An old problem with a new therapy: gastrointestinal bleeding in ventricular assist device patients and deep overtube-assisted enteroscopy.
Conventional algorithms for diagnosis and treatment of gastrointestinal bleeding (GIB) in patients with nonpulsatile ventricular assist devices (VADs) may take days to perform while patients require transfusions. We developed a new algorithm based on deep overtube-assisted enteroscopy (DOAE) to facilitate a rapid diagnosis and treatment. From 2004 to 2012, 84 patients who underwent VAD placement in our institution, were evaluated for episodes of GIB. Our new algorithm for the management of GIB using DOAE was evaluated by dividing the episodes into three groups: group A (traditional management without enteroscopy), group B (traditional management with enteroscopy performed \u3e24 hours after presentation), and group C (new management algorithm with enteroscopy performedpresentation). Gastrointestinal bleeding was observed in 14 (17%) of our study patients for a total of 45 individual episodes of which 28 met our criteria for subanalysis. Forty-one (84%) lesions were confined to the upper gastrointestinal tract with more than 91% of these lesions being arteriovenous malformations. Average number of transfusions in groups A, B, and C were 4.1, 6.3, and 1.3, respectively (p = 0.001). The number of days to treatment was significantly shorter in group C than group B (0.4 vs. 5.3 days, p = 0.0002). Our new algorithm for the management of GIB using DOAE targets the most common locations of bleeding found in this patient population. When performed early, DOAE has the potential to decrease the need for transfusions and allow for an early diagnosis of GIB in VAD recipients
Plant species first recognised as naturalised or naturalising for New South Wales in 2004 and 2005
Information is provided on the taxonomy and distribution of 62 taxa of naturalised or naturalising plantsm newly recorded for the state of New South Wales during the period 1 January 2004 and 31 December 2005 and 1 species treated in the 2002 revised Flora of New South Wales Volume 2 but overlooked in an earlier paper of this series. Of these taxa, 17 are new records for Australia (prefaced with a â ). The 62 taxa are: Acer palmatum, â Acer saccharinum, Achillea filipendulina, Acokanthera oblongifolia, â Anemone hupehensis var. japonica, Berberis aquifolium, â Bidens aurea, â Brugmansia suaveolens, Brugmansia x candida, Buddleja dysophylla, â Convolvulus farinosus, Cordyline australis, Coriandrum sativum, Corymbia citriodora (Australian species naturalised outside its native range), Crassula ericoides subsp. ericoides, Crotalaria retusa (Australian species naturalised outside its native range), Cyperus prolifer, Echinochloa polystachya, Ficus carica, â Gladiolus dalenii, â Gladiolus cultivar, Hakea laurina (Western Australian species), Hemerocallis fulva var. fulva, Hieracium pilosella, Hydrangea macrophylla, Hydrocleys nymphoides, Hymenachne amplexicaulis, Hypericum calycinum, Impatiens balfouri, Indigofera spicata, Iris laevigata, â Juglans ailantifolia, Lilium lancifolium, Lygodium japonicum, Malephora crocea, Mauranthemum paludosum, Melastoma malabathricum, â Nassella tenuissima, Pelargonium quercifolium, â Phoenix reclinata, Phormium tenax, Pinus contorta, Podranea ricasoliana, â Polygonatum x hybridum, Polypremum procumbens, â Primula malacoides, Rhaphiolepis umbellata, Romneya coulteri, Romneya trichocalyx, Setaria incrassata, â Sideritis lanata, â Sorbus aucuparia, Spartium junceum, Stylosanthes guianensis, Stylosanthes humilis, â Symphoricarpos albus var. laevigatus, Syzygium paniculatum (Australian species naturalising outside its native range), Tibouchina urvilleana, â Tradescantia cerinthoides, â Utricularia sandersonii, Washingtonia filifera and Zephyranthes carinata. The overlooked species is Eugenia uniflora
Major substructure in the M31 outer halo: the South-West Cloud
We undertake the first detailed analysis of the stellar population and spatial properties of a diffuse substructure in the outer halo ofM31. The South-West Cloud lies at a projected distance of Ì100 kpc from the centre of M31 and extends for at least Ì
The PAndAS view of the Andromeda satellite system - II. Detailed properties of 23 M31 dwarf spheroidal galaxies
We present a comprehensive analysis of the structural properties and
luminosities of the 23 dwarf spheroidal galaxies that fall within the footprint
of the Pan-Andromeda Archaeological Survey (PAndAS). These dwarf galaxies
represent the large majority of Andromeda's known satellite dwarf galaxies and
cover a wide range in luminosity ( or ) and surface brightness ( mag/arcsec). We confirm
most previous measurements, but find And XIX to be significantly larger than
before ( pc, ) and cannot
derive parameters for And XXVII as it is likely not a bound stellar system. We
also significantly revise downward the luminosities of And~XV and And~XVI,
which are now or . Finally, we provide the
first detailed analysis of Cas II/And XXX, a fairly faint system
() of typical size ( pc), located in
close proximity to the two bright elliptical dwarf galaxies NGC 147 & 185.
Combined with the set of homogeneous distances published in an earlier
contribution, our analysis dutifully tracks all relevant sources of uncertainty
in the determination of the properties of the dwarf galaxies from the PAndAS
photometric catalogue. We further publish the posterior probability
distribution functions of all the parameters we fit for in the form of MCMC
chains available online; these inputs should be used in any analysis that aims
to remain truthful to the data and properly account for covariance between
parameters.Comment: 30 pages, 39 figures. Accepted for publication in Ap
AI is a viable alternative to high throughput screening: a 318-target study
: High throughput screening (HTS) is routinely used to identify bioactive small molecules. This requires physical compounds, which limits coverage of accessible chemical space. Computational approaches combined with vast on-demand chemical libraries can access far greater chemical space, provided that the predictive accuracy is sufficient to identify useful molecules. Through the largest and most diverse virtual HTS campaign reported to date, comprising 318 individual projects, we demonstrate that our AtomNetÂź convolutional neural network successfully finds novel hits across every major therapeutic area and protein class. We address historical limitations of computational screening by demonstrating success for target proteins without known binders, high-quality X-ray crystal structures, or manual cherry-picking of compounds. We show that the molecules selected by the AtomNetÂź model are novel drug-like scaffolds rather than minor modifications to known bioactive compounds. Our empirical results suggest that computational methods can substantially replace HTS as the first step of small-molecule drug discovery
The large-scale structure of the halo of the Andromeda galaxy II. Hierarchical structure in the Pan-Andromeda Archaeological Survey
The Pan-Andromeda Archaeological Survey is a survey of square degrees
centered on the Andromeda (M31) and Triangulum (M33) galaxies that has provided
the most extensive panorama of a galaxy group to large projected
galactocentric radii. Here, we collate and summarise the current status of our
knowledge of the substructures in the stellar halo of M31, and discuss
connections between these features. We estimate that the 13 most distinctive
substructures were produced by at least 5 different accretion events, all in
the last 3 or 4 Gyrs. We suggest that a few of the substructures furthest from
M31 may be shells from a single accretion event. We calculate the luminosities
of some prominent substructures for which previous estimates were not
available, and we estimate the stellar mass budget of the outer halo of M31. We
revisit the problem of quantifying the properties of a highly structured
dataset; specifically, we use the OPTICS clustering algorithm to quantify the
hierarchical structure of M31's stellar halo, and identify three new faint
structures. M31's halo, in projection, appears to be dominated by two
`mega-structures', that can be considered as the two most significant branches
of a merger tree produced by breaking M31's stellar halo into smaller and
smaller structures based on the stellar spatial clustering. We conclude that
OPTICS is a powerful algorithm that could be used in any astronomical
application involving the hierarchical clustering of points. The publication of
this article coincides with the public release of all PAndAS data products.Comment: Accepted for publication in the Astrophysical Journal. 51 pages, 24
figures, 5 tables. Some figures have degraded resolution. All PAndAS data
products are available via the CADC at
http://www.cadc-ccda.hia-iha.nrc-cnrc.gc.ca/en/community/pandas/query.html
where you can also find a version of the paper with full resolution figure