988 research outputs found

    Fertiliser trials with potatoes, Manjimup : 1958-1959

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    THIS experiment was the third of this type carried out in karri loam soils. Significant yield responses were obtained from increasing rates of fertiliser applications. The results appear to be generally consistent with those obtained previously in the area

    Fertiliser trials with potatoes at Manjimup

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    This trial was one of a series to be carried out by the Vegetable Section of the Department of Agriculture, with the objective of determining the most economical applications of nitrogen, phosphate and potash fertilisers for potatoes in the important potato-growing areas of the State. The results are discussed in this report. On the site chosen at Manjimup, highly significant responses were obtained from increasing levels of phosphate and nitrogen. It is indicated that potash, over a certain level, had a depressing effect on the yield

    Fertiliser trial with potatoes Manjimup 1957-58

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    This article deals with the second trial conducted in Manjimup on karri loam soils. It is one of a series of fertiliser trials with potatoes carried out by the Department of Agriculture in various potato growing districts of the State. Effects of fertilisers on the first grade yield and on the quality of potatoes were tested. The results were in reasonably close agreement with those of the first trial carried out in 1956-57

    Organic manures in commercial vegetable growing

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    AT one time organic manures provided the only means to return the plant nutrients into the soil, which were removed by cropping. With the rapid increase of mechanisation, these materials have become very scarce, and their cost extremely high. It is, therefore, necessary to consider whether the benefits gained from their use are sufficient to warrant their high purchase price, or indeed whether the use of manures is warranted at all

    The competitive NMDA antagonist CPP protects substantia nigra neurons from MPTP-induced degeneration in primates

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    Degeneration of nigrostriatal dopaminergic neurons is the primary histopathological feature of Parkinson's disease. The neurotoxin MPTP (1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine) induces a neurological syndrome in man and non-human primates very similar to idiopathic Parkinson's disease by selectively destroying dopaminergic nigrostriatal neurons. This gives rise to the hypothesis that Parkinson's disease may be caused by endogenous or environmental toxins. Endogenous excitatory amino acids (EAAs) such as L-glutamate could be involved in neurodegenerative disorders including Parkinson's disease. We report in this study that the competitive NMDA antagonist CPP (3-((+/-)-2-carboxypiperazin-4-yl)-propyl-1-phosphonic acid) protects nigral tyrosine hydroxylase (TH) positive neurons from degeneration induced by systemic treatment with MPTP in common marmosets. This indicates that EAAs are involved in the pathophysiological cascade of MPTP-induced neuronal cell death and that EAA antagonists may offer a neuroprotective therapy for Parkinson's disease

    Gaze transitions when learning with multimedia

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    Eye tracking methodology is used to examine the influence of interactive multimedia on the allocation of visual attention and its dynamics during learning. We hypothesized that an interactive simulation promotes more organized switching of attention between different elements of multimedia learning material, e.g., textual description and pictorial visualization. Participants studied a description of an algorithm accompanied either by an interactive simulation, self-paced animation, or static illustration. Using a novel framework for entropy-based comparison of gaze transition matrices, results showed that the interactive simulation elicited more careful visual investigation of the learning material as well as reading of the problem description through to its completion

    Phosphonic (phosphorous) acid controls Plasmopara viticola the cause of downy mildew of grapevines

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    Abstract Phosphonic (phosphorous) acid (Fol

    European Paediatric Formulation Initiative (EuPFI)-Formulating Ideas for Better Medicines for Children.

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    © American Association of Pharmaceutical Scientists 2016, published by Springer US, available online at doi: https://doi.org/10.1208/s12249-016-0584-1The European Paediatric Formulation Initiative (EuPFI), founded in 2007, aims to promote and facilitate the preparation of better and safe medicines for children through linking research and information dissemination. It brings together the capabilities of the industry, academics, hospitals, and regulators within a common platform in order to scope the solid understanding of the major issues, which will underpin the progress towards the future of paediatric medicines we want.The EuPFI was formed in parallel to the adoption of regulations within the EU and USA and has served as a community that drives research and dissemination through publications and the organisation of annual conferences. The membership and reach of this group have grown since its inception in 2007 and continue to develop and evolve to meet the continuing needs and ambitions of research into and development of age appropriate medicines. Five diverse workstreams (age-appropriate medicines, Biopharmaceutics, Administration Devices, Excipients and Taste Assessment & Taste Masking (TATM)) direct specific workpackages on behalf of the EuPFI. Furthermore, EuPFI interacts with multiple diverse professional groups across the globe to ensure efficient working in the area of paediatric medicines. Strong commitment and active involvement of all EuPFI stakeholders have proved to be vital to effectively address knowledge gaps related to paediatric medicines, discuss potential areas for further research and identify issues that need more attention and analysis in the future.Peer reviewedFinal Accepted Versio

    Effects of EDP-420 on penicillin-resistant and quinolone- and penicillin-resistant pneumococci in the rabbit meningitis model

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    Objectives To test the efficacy of EDP-420, a new ketolide, in experimental pneumococcal meningitis and to determine its penetration into the CSF. Methods The experimental rabbit model was used in this study and EDP-420 was tested against a penicillin-resistant and a penicillin- and quinolone-resistant mutant. EDP-420 was also tested against both strains in time-killing assays over 8 h in vitro. Results In experimental meningitis, EDP-420 produced a bactericidal activity comparable to the standard regimen based on a combination of vancomycin with ceftriaxone against a penicillin-resistant Streptococcus pneumoniae and a penicillin- and quinolone-resistant S. pneumoniae isolate. The penetration of EDP-420 into inflamed meninges was 38% after an iv injection of 10 mg/kg. The bactericidal activity of EDP-420 was also confirmed in in vitro time-killing assays. Conclusions EDP-420 is an efficacious alternative treatment in pneumococcal meningitis, especially when resistant strains are suspecte
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