1,703 research outputs found

    A kinematic analysis of distracter interference effects during visually guided action in spatial neglect

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    Patients with left spatial neglect following right hemisphere damage may show anomalies in ipsilesional-limb movements directed to targets on their affected side, in addition to their characteristic perceptual deficits. In this study we examined the extent to which visually guided movements made by neglect patients are susceptible to interference from concurrent visual distracters on the contralesional or ipsilesional side of a designated target. Eleven right hemisphere patients with visual neglect, plus 11 matched healthy controls, performed a double-step movement task upon a digitizing tablet, using their ipsilesional hand to respond. On each double-step trial the first component of the movement was cued to a common central target, whereas the second component was cued unpredictably to a target on either the contralesional or ipsilesional side. On separate trials lateral targets either appeared alone or together with a concurrent distracter in an homologous location in the opposite hemispace. In addition to being significantly slower and more error prone than controls, neglect patients also exhibited a number of interference effects from ipsilesional distracters. They often failed to move to left targets in the presence of a right-sided distracter, or else they moved to the distracter itself rather than to a contralesional target. The initial accelerative phase of their movements to contralesional targets tended to be interrupted prematurely, and they spent significantly more time in the terminal guidance phase of movements to contralesional targets in the presence of an ipsilesional distracter. In contrast. contralesional distracters had little effect on patients' movements to ipsilesional targets. We conclude that right hemisphere damage induces a competitive bias that favors actions to ipsilesional targets. This bias affects multiple stages of processing within the visuomotor system, from initial programming through to the final stages of terminal guidance

    Fungsi Sosiologis Undang-undang Dasar Negara Republik Indonesia Tahun 1945 Dalam Memenuhi Hak-hak Masyarakat

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    Constitution is a binding social contract between government and citizen. Their relationships figure the rights of the society. These rightsbecome the tool of society to participate in making government policy, to control the governmentand to avoid the practice of absolutpower.Therefore, the 1945 Indonesian Constitution regulates the norms of rights of society. The functions of the rights are to up hold society justice as well as to create society welfare. The regulation of rights of society in Indonesian Constitution indicates itssociological function.It accommodates the right of society in its relationship between government and citizen

    Detection of Chlamydia trachomatis mRNA using digital PCR as a more accurate marker of viable organism

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    © 2018, Springer-Verlag GmbH Germany, part of Springer Nature. Spontaneous resolution of urogenital Chlamydia trachomatis (CT) without treatment has previously been described, but a limitation of these reports is that DNA or RNA-based amplification tests used do not differentiate between viable infection and non-viable DNA. We modified a previously published CT mRNA detection (omp2) method to differentiate between viable infection and non-viable DNA in a sample of CT DNA PCR positive women. We modified a CT mRNA detection (omp2) method from reverse transcriptase qPCR (RTqPCR) to digital PCR (dPCR) and evaluated it in samples from CT DNA positive women. Firstly, CT infected McCoy B cells treated with azithromycin in vitro identified detectable mRNA levels disappeared <2 days, while DNA persisted up to 6 days. We used 55 self-collected vaginal swabs from a cohort of women diagnosed as DNA positive for chlamydia obtained pre- and 7 days of post-azithromycin treatment. Concordance with DNA results was higher for dPCR than RTqPCR (74.5% versus 65.5%). At visit 1, there was a strong linear relationship between DNA and mRNA (r = 0.9, p < 0.000); 24 samples had both mRNA and DNA detected (82.8%) and 5 had only DNA detected with a potential false positive proportion of 17.2% (95%CI: 5.8, 35.8). At visit 2, there was poor correlation between DNA and mRNA (r = 0.14, p = 0.55); eight specimens had only DNA detected (42.1%; 95%CI: 20.25, 66.50) and one had mRNA detected. DNA detection methods alone may detect non-viable DNA. Consideration should be given to further develop mRNA assays as ancillary tests to improve detection of viable chlamydia

    The effect of mixing entire male pigs prior to transport to slaughter on behaviour, welfare and carcass lesions

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    peer-reviewedData set for article is also provided.Research is needed to validate lesions recorded at meat inspection as indicators of pig welfare on farm. The aims were to determine the influence of mixing pigs on carcass lesions and to establish whether such lesions correlate with pig behaviour and lesions scored on farm. Aggressive and mounting behaviour of pigs in three single sex pens was recorded on Day −5, −2, and −1 relative to slaughter (Day 0). On Day 0 pigs were randomly allocated to 3 treatments (n = 20/group) over 5 replicates: males mixed with females (MF), males mixed with males (MM), and males unmixed (MUM). Aggressive and mounting behaviours were recorded on Day 0 at holding on farm and lairage. Skin/tail lesions were scored according to severity at the farm (Day −1), lairage, and on the carcass (Day 0). Effect of treatment and time on behaviour and lesions were analysed by mixed models. Spearman rank correlations between behaviour and lesion scores and between scores recorded at different stages were determined. In general, MM performed more aggressive behaviour (50.4 ± 10.72) than MUM (20.3 ± 9.55, P < 0.05) and more mounting (30.9 ± 9.99) than MF (11.4 ± 3.76) and MUM (9.8 ± 3.74, P < 0.05). Skin lesion scores increased between farm (Day −1) and lairage (P < 0.001), but this tended to be significant only for MF and MM (P = 0.08). There was no effect of treatment on carcass lesions and no associations were found with fighting/mounting. Mixing entire males prior to slaughter stimulated mounting and aggressive behaviour but did not influence carcass lesion scores. Carcass skin/tail lesions scores were correlated with scores recorded on farm (rskin = 0.21 and rtail = 0.18, P < 0.01) suggesting that information recorded at meat inspection could be used as indicators of pig welfare on farm.This study was part of the PIGWELFIND project funded by the Department of Agriculture, Food and the Marine (DAFM), Ireland

    The role of financial analysts in stock market efficiency with respect to annual earnings and its cash and accrual components

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    This study examines biases in stock prices and financial analysts\u27 earnings forecasts. These biases take the form of systematic overweighting or underweighting of the persistence characteristics of cash versus accrual earnings components. Our evidence suggests that stock prices tend to overweight and financial analysts tend to underweight these persistence characteristics. Furthermore, we find that analysts\u27 underweighting attenuates stock price overweighting. However, we find little evidence that the overweighting in stock prices attenuates analyst underweighting. This study brings a new perspective to the literature regarding the disciplining role of financial analysts in capital markets

    Do Harmonised Accounting Standards Lead to Harmonised

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    The objective of this paper is to investigate the level of harmonisation for IAS 39 Financial Instruments: Recognition and Measurement and to identify if different levels of harmonisation are associated with company-specific factors. Based on Rahman et al. (2002), we used the Jaccard (JACC) index to determine the level of harmonisation between IAS 39 and the financial reporting practice of a broad-based sample of European-listed companies in 2005.We applied regression analysis to identify companies’ specific characteristics that affect the level of convergence of the reporting practice of financial instruments. The results of this study show a high level of harmonisation between accounting practices of European companies included in our sample and IAS 39

    Recovery of thicket in a revegetated limestone mine

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    The opencast extraction of limestone at the PPC Cement (Pty) Ltd Loerie quarry in the Eastern Cape, South Africa, has led to disturbance of the immediate environment. Large tracts of thicket have been removed during mining and exhausted quarry areas had to be revegetated. Revegetation commenced 16 years ago and as a result of progressive revegetation efforts since then, five seral stages were available for study. This presented an opportunity to describe the successional progression that occurs where thicket topsoil was used for revegetation. The quarry lies near the Gamtoos fault and both thicket and mountain fynbos is found in proximity to the mine. Before mining, the area was covered by thicket and quarry floors were revegetated by covering landscaped areas with thicket topsoil. The vegetation that developed in the quarry had a very low floristic relationship to fynbos. After 16 years, the vegetation also had a low similarity to thicket, even though the soils used for revegetation contained thicket propagules. The oldest seral stage (16years) was a Rhus incisa-Panicum deustum thicket in which only 46% of the species were mature thicket species. In order to develop thicket more rapidly, active intervention will be required. This could take the form of planting of saplings of key thicket species. A trial planting of such saplings showed high survival success of most species. Long-term (50year) monitoring will be required to determine whether this approach was successful

    Analysts' stock recommendations, earnings growth and risk

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    A key output of sell-side analysts is their recommendations to investors as to whether they should, buy, hold or sell a company's shares. However, relatively little is known regarding the determinants of those recommendations. This study considers this question, presenting results that suggest that recommendations are dependent on analysts’ short-term and long-term earnings growth forecasts, as well as on proxies for the analysts’ unobservable views on earnings growth in the more distant future and risk. Furthermore, analysts who appear to incorporate earnings growth beyond the long-term growth forecast horizons and risk into their recommendation decisions make more profitable stock recommendations

    Does the carer support needs assessment tool cover the established support needs of carers of patients with chronic obstructive pulmonary disease? A systematic literature search and narrative review

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    Background: Informal carers play a key supportive role for patients with chronic obstructive pulmonary disease. However, caring can have a considerable impact on health and wellbeing. Carers may have unidentified support needs that could be a target for intervention. Literature on the support needs of informal carers has not been fully synthesised, and our knowledge of the comprehensiveness of the Carer Support Needs Assessment Tool for these individuals is limited. Aim: To explore whether the Carer Support Needs Assessment Tool covers the support needs of carers of patients with chronic obstructive pulmonary disease identified in published literature. Design: English language studies were identified against predetermined inclusion/exclusion criteria through database searching. Further studies were identified through searching reference lists and citations of included papers. Papers were critically appraised and data extracted and synthesised by two reviewers. Identified needs were mapped to Carer Support Needs Assessment Tool questions. Data sources: MEDLINE, CINAHL, EMBASE, CDSR, ASSIA, PsycINFO and Scopus databases (Jan 1997–Dec 2017). Results: Twenty-four studies were included. Results suggest that carers have support needs in a range of domains including physical, social, psychological and spiritual. Many of these needs are unmet. Particular areas of concern relate to prolonged social isolation, accessing services, emotional support and information needs. Findings also suggest amendment of the Carer Support Needs Assessment Tool may be required relating to difficulties within relationship management. Conclusion: Evidence suggests that carers of patients with chronic obstructive pulmonary disease would benefit from identification and response to their support needs by healthcare professionals but to enable this, the Carer Support Needs Assessment Tool requires an additional question. Future planned work will explore this with carers of patients with chronic obstructive pulmonary disease
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