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  • Cambridge University Press (CUP)  (9)
  • 1
    Online-Ressource
    Online-Ressource
    The Australian Square Kilometre Array Pathfinder: Performance of the Boolardy Engineering Test Array
    Cambridge University Press (CUP) ; 2016
    In:  Publications of the Astronomical Society of Australia Vol. 33 ( 2016)
    Details
    In: Publications of the Astronomical Society of Australia, Cambridge University Press (CUP), Vol. 33 ( 2016)
    Kurzfassung: We describe the performance of the Boolardy Engineering Test Array, the prototype for the Australian Square Kilometre Array Pathfinder telescope. Boolardy Engineering Test Array is the first aperture synthesis radio telescope to use phased array feed technology, giving it the ability to electronically form up to nine dual-polarisation beams. We report the methods developed for forming and measuring the beams, and the adaptations that have been made to the traditional calibration and imaging procedures in order to allow BETA to function as a multi-beam aperture synthesis telescope. We describe the commissioning of the instrument and present details of Boolardy Engineering Test Array’s performance: sensitivity, beam characteristics, polarimetric properties, and image quality. We summarise the astronomical science that it has produced and draw lessons from operating Boolardy Engineering Test Array that will be relevant to the commissioning and operation of the final Australian Square Kilometre Array Path telescope.
    Materialart: Online-Ressource
    ISSN: 1323-3580 , 1448-6083
    URL: Article
    DOI: 10.1017/pasa.2016.37
    Sprache: Englisch
    Verlag: Cambridge University Press (CUP)
    Publikationsdatum: 2016
    ZDB Id: 2560489-2
    ZDB Id: 2079225-6
    SSG: 16,12
    Standort Signatur Einschränkungen Verfügbarkeit
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    Online-Ressource
  • 2
    Online-Ressource
    Online-Ressource
    Australian square kilometre array pathfinder: I. system description
    Cambridge University Press (CUP) ; 2021
    In:  Publications of the Astronomical Society of Australia Vol. 38 ( 2021)
    Details
    In: Publications of the Astronomical Society of Australia, Cambridge University Press (CUP), Vol. 38 ( 2021)
    Kurzfassung: In this paper, we describe the system design and capabilities of the Australian Square Kilometre Array Pathfinder (ASKAP) radio telescope at the conclusion of its construction project and commencement of science operations. ASKAP is one of the first radio telescopes to deploy phased array feed (PAF) technology on a large scale, giving it an instantaneous field of view that covers $31\,\textrm{deg}^{2}$ at $800\,\textrm{MHz}$ . As a two-dimensional array of 36 $\times$ 12 m antennas, with baselines ranging from 22 m to 6 km, ASKAP also has excellent snapshot imaging capability and 10 arcsec resolution. This, combined with 288 MHz of instantaneous bandwidth and a unique third axis of rotation on each antenna, gives ASKAP the capability to create high dynamic range images of large sky areas very quickly. It is an excellent telescope for surveys between 700 and $1800\,\textrm{MHz}$ and is expected to facilitate great advances in our understanding of galaxy formation, cosmology, and radio transients while opening new parameter space for discovery of the unknown.
    Materialart: Online-Ressource
    ISSN: 1323-3580 , 1448-6083
    URL: Article
    DOI: 10.1017/pasa.2021.1
    Sprache: Englisch
    Verlag: Cambridge University Press (CUP)
    Publikationsdatum: 2021
    ZDB Id: 2560489-2
    ZDB Id: 2079225-6
    SSG: 16,12
    Standort Signatur Einschränkungen Verfügbarkeit
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    Online-Ressource
  • 3
    Online-Ressource
    Online-Ressource
    The Rapid ASKAP Continuum Survey I: Design and first results
    Cambridge University Press (CUP) ; 2020
    In:  Publications of the Astronomical Society of Australia Vol. 37 ( 2020)
    Details
    In: Publications of the Astronomical Society of Australia, Cambridge University Press (CUP), Vol. 37 ( 2020)
    Kurzfassung: The Rapid ASKAP Continuum Survey (RACS) is the first large-area survey to be conducted with the full 36-antenna Australian Square Kilometre Array Pathfinder (ASKAP) telescope. RACS will provide a shallow model of the ASKAP sky that will aid the calibration of future deep ASKAP surveys. RACS will cover the whole sky visible from the ASKAP site in Western Australia and will cover the full ASKAP band of 700–1800 MHz. The RACS images are generally deeper than the existing NRAO VLA Sky Survey and Sydney University Molonglo Sky Survey radio surveys and have better spatial resolution. All RACS survey products will be public, including radio images (with $\sim$ 15 arcsec resolution) and catalogues of about three million source components with spectral index and polarisation information. In this paper, we present a description of the RACS survey and the first data release of 903 images covering the sky south of declination $+41^\circ$ made over a 288-MHz band centred at 887.5 MHz.
    Materialart: Online-Ressource
    ISSN: 1323-3580 , 1448-6083
    URL: Article
    DOI: 10.1017/pasa.2020.41
    Sprache: Englisch
    Verlag: Cambridge University Press (CUP)
    Publikationsdatum: 2020
    ZDB Id: 2560489-2
    ZDB Id: 2079225-6
    SSG: 16,12
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 4
    Online-Ressource
    Online-Ressource
    ASKAP commissioning observations of the GAMA 23 field
    Cambridge University Press (CUP) ; 2019
    In:  Publications of the Astronomical Society of Australia Vol. 36 ( 2019)
    Details
    In: Publications of the Astronomical Society of Australia, Cambridge University Press (CUP), Vol. 36 ( 2019)
    Kurzfassung: We have observed the G23 field of the Galaxy AndMass Assembly (GAMA) survey using the Australian Square Kilometre Array Pathfinder (ASKAP) in its commissioning phase to validate the performance of the telescope and to characterise the detected galaxy populations. This observation covers ~48 deg 2 with synthesised beam of 32.7 arcsec by 17.8 arcsec at 936MHz, and ~39 deg 2 with synthesised beam of 15.8 arcsec by 12.0 arcsec at 1320MHz. At both frequencies, the root-mean-square (r.m.s.) noise is ~0.1 mJy/beam. We combine these radio observations with the GAMA galaxy data, which includes spectroscopy of galaxies that are i-band selected with a magnitude limit of 19.2. Wide-field Infrared Survey Explorer (WISE) infrared (IR) photometry is used to determine which galaxies host an active galactic nucleus (AGN). In properties including source counts, mass distributions, and IR versus radio luminosity relation, the ASKAP-detected radio sources behave as expected. Radio galaxies have higher stellar mass and luminosity in IR, optical, and UV than other galaxies. We apply optical and IR AGN diagnostics and find that they disagree for ~30% of the galaxies in our sample. We suggest possible causes for the disagreement. Some cases can be explained by optical extinction of the AGN, but for more than half of the cases we do not find a clear explanation. Radio sources aremore likely (~6%) to have an AGN than radio quiet galaxies (~1%), but the majority of AGN are not detected in radio at this sensitivity.
    Materialart: Online-Ressource
    ISSN: 1323-3580 , 1448-6083
    URL: Article
    DOI: 10.1017/pasa.2019.16
    Sprache: Englisch
    Verlag: Cambridge University Press (CUP)
    Publikationsdatum: 2019
    ZDB Id: 2560489-2
    ZDB Id: 2079225-6
    SSG: 16,12
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 5
    Online-Ressource
    Online-Ressource
    The contribution of travellers visiting friends and relatives to notified infectious diseases in Australia: state-based enhanced surveillance
    Cambridge University Press (CUP) ; 2016
    In:  Epidemiology and Infection Vol. 144, No. 16 ( 2016-12), p. 3554-3563
    Details
    In: Epidemiology and Infection, Cambridge University Press (CUP), Vol. 144, No. 16 ( 2016-12), p. 3554-3563
    Kurzfassung: Immigrants and their children who return to their country of origin to visit friends and relatives (VFR) are at increased risk of acquiring infectious diseases compared to other travellers. VFR travel is an important disease control issue, as one quarter of Australia's population are foreign-born and one quarter of departing Australian international travellers are visiting friends and relatives. We conducted a 1-year prospective enhanced surveillance study in New South Wales and Victoria, Australia to determine the contribution of VFR travel to notifiable diseases associated with travel, including typhoid, paratyphoid, measles, hepatitis A, hepatitis E, malaria and chikungunya. Additional data on characteristics of international travel were collected. Recent international travel was reported by 180/222 (81%) enhanced surveillance cases, including all malaria, chikungunya and paratyphoid cases. The majority of cases who acquired infections during travel were immigrant Australians (96, 53%) or their Australian-born children (43, 24%). VFR travel was reported by 117 (65%) travel-associated cases, highest for typhoid (31/32, 97%). Cases of children (aged 〈 18 years) (86%) were more frequently VFR travellers compared to adult travellers (57%, P 〈 0·001). VFR travel is an important contributor to imported disease in Australia. Communicable disease control strategies targeting these travellers, such as targeted health promotion, are likely to impact importation of these travel-related infections.
    Materialart: Online-Ressource
    ISSN: 0950-2688 , 1469-4409
    URL: Article
    DOI: 10.1017/S0950268816001734
    RVK:
    XA 41125
    Sprache: Englisch
    Verlag: Cambridge University Press (CUP)
    Publikationsdatum: 2016
    ZDB Id: 1470211-3
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 6
    Online-Ressource
    Online-Ressource
    Tuberculosis in Prison: Balancing Justice and Public Health
    Cambridge University Press (CUP) ; 1993
    In:  Journal of Law, Medicine & Ethics Vol. 21, No. 3-4 ( 1993), p. 332-341
    Details
    In: Journal of Law, Medicine & Ethics, Cambridge University Press (CUP), Vol. 21, No. 3-4 ( 1993), p. 332-341
    Kurzfassung: During the mid-nineteenth century the annual tuberculosis (TB) mortality in the penitentiaries at Auburn, N.Y., Boston, and Philadelphia exceeded 10 percent of the inmate population. At the beginning of the sanatorium era, 80 percent of the prison deaths were attributed to TB. As the mountain air was “commonly known” to be healthful, the first prison sanatorium was opened in the mountains near Dannemora, N.Y. in 1904. It served to isolate contagious prison inmates until the advent of effective chemotherapy for the disease in the 1950’s. Early antibiotic therapy for TB was such a great success that the public health aspects of TB in prisons remained dormant for the next 40 years. In 1991, a correctional officer from Auburn Correctional Facility in Auburn, New York died as a result of multidrug-resistant TB. He had been posted to care for hospitalized patients, from whom he acquired his disease. This death, and the transmission of TB infection to health care workers in the same hospital, brought the nature and extent of modern inmate medical care into finer focus.
    Materialart: Online-Ressource
    ISSN: 1073-1105 , 1748-720X
    URL: Article
    DOI: 10.1111/j.1748-720X.1993.tb01258.x
    RVK:
    XA 54685
    Sprache: Englisch
    Verlag: Cambridge University Press (CUP)
    Publikationsdatum: 1993
    ZDB Id: 2052584-9
    SSG: 2
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 7
    Online-Ressource
    Online-Ressource
    Risk factors for herpes zoster in a large cohort of unvaccinated older adults: a prospective cohort study
    Cambridge University Press (CUP) ; 2015
    In:  Epidemiology and Infection Vol. 143, No. 13 ( 2015-10), p. 2871-2881
    Details
    In: Epidemiology and Infection, Cambridge University Press (CUP), Vol. 143, No. 13 ( 2015-10), p. 2871-2881
    Kurzfassung: We analysed data from a prospective cohort of 255024 adults aged ⩾45 years recruited from 2006–2009 to identify characteristics associated with a zoster diagnosis. Diagnoses were identified by linkage to pharmaceutical treatment and hospitalization records specific for zoster and hazard ratios were estimated. Over 940583 person-years, 7771 participants had a zoster diagnosis; 253 (3·3%) were hospitalized. After adjusting for age and other factors, characteristics associated with zoster diagnoses included: having a recent immunosuppressive condition [adjusted hazard ratio (aHR) 1·58, 95% confidence interval (CI) 1·32–1·88], female sex (aHR 1·36, 95% CI 1·30–1·43), recent cancer diagnosis (aHR 1·35, 95% CI 1·24–1·46), and severe physical limitation vs. none (aHR 1·33, 95% CI 1·23–1·43). The relative risk of hospitalization for zoster was higher for those with an immunosuppressive condition (aHR 3·78, 95% CI 2·18–6·55), those with cancer (aHR 1·78, 95% CI 1·24–2·56) or with severe physical limitations (aHR 2·50, 95% CI 1·56–4·01). The novel finding of an increased risk of zoster diagnoses and hospitalizations in those with physical limitations should prompt evaluation of the use of zoster vaccine in this population.
    Materialart: Online-Ressource
    ISSN: 0950-2688 , 1469-4409
    URL: Article
    DOI: 10.1017/S0950268814003653
    RVK:
    XA 41125
    Sprache: Englisch
    Verlag: Cambridge University Press (CUP)
    Publikationsdatum: 2015
    ZDB Id: 1470211-3
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 8
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    Online-Ressource
    Parotid duct ligation for treatment of drooling in children with neurological impairment
    Cambridge University Press (CUP) ; 2009
    In:  The Journal of Laryngology & Otology Vol. 123, No. 9 ( 2009-09), p. 997-1001
    Details
    In: The Journal of Laryngology & Otology, Cambridge University Press (CUP), Vol. 123, No. 9 ( 2009-09), p. 997-1001
    Kurzfassung: Multiple surgical procedures have been advocated for the management of problematic drooling in neurologically impaired children. Parotid duct ligation is a quick and simple operation conducted via an intra-oral approach and usually performed simultaneously with other procedures. In this study, we aimed to evaluate the effectiveness of parotid duct ligation as a discrete procedure. Methods: All children who underwent bilateral parotid duct ligation as the solitary operative intervention at that time, between February 2003 and September 2006, were included in the study. Results: Ten children were studied. Surgery was successful in 80 per cent of cases. One patient (10 per cent) had a post-operative wound infection. Conclusions: Bilateral parotid duct ligation is an effective yet conservative operation for drooling in neurologically impaired children. It requires minimal surgical dissection and has a low morbidity rate. It should be considered as a potential first-line procedure in children who aspirate, and as a further surgical option in anterior droolers or those who continue to drool unacceptably following prior surgical intervention.
    Materialart: Online-Ressource
    ISSN: 0022-2151 , 1748-5460
    URL: Article
    DOI: 10.1017/S0022215109004733
    Sprache: Englisch
    Verlag: Cambridge University Press (CUP)
    Publikationsdatum: 2009
    ZDB Id: 2013209-8
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 9
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    Online-Ressource
    Bracken control by asulam
    Cambridge University Press (CUP) ; 1982
    In:  Proceedings of the Royal Society of Edinburgh. Section B. Biological Sciences Vol. 81, No. 1-2 ( 1982), p. 111-116
    Details
    In: Proceedings of the Royal Society of Edinburgh. Section B. Biological Sciences, Cambridge University Press (CUP), Vol. 81, No. 1-2 ( 1982), p. 111-116
    Kurzfassung: The chemical, physical and biological properties of asulam make this herbicide well suited for the selective control of bracken in various situations. These properties are reviewed and conditions considered to optimise the control of bracken and minimise the effect on the environment on both a short- and long-term basis. The role of surfactants and mineral oils is considered.
    Materialart: Online-Ressource
    ISSN: 0269-7270 , 2053-5910
    URL: Article
    DOI: 10.1017/S0269727000003286
    Sprache: Englisch
    Verlag: Cambridge University Press (CUP)
    Publikationsdatum: 1982
    ZDB Id: 209231-1
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
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