1,794 research outputs found

    Howes F. N. — A dictionnary of useful and everyday plants and their common names

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    Barrau Jacques. Howes F. N. — A dictionnary of useful and everyday plants and their common names. In: Journal d'agriculture tropicale et de botanique appliquée, vol. 22, n°1-3, Janvier-février-mars 1975. p. 78

    Howes F. N. — A dictionnary of useful and everyday plants and their common names

    No full text
    Barrau Jacques. Howes F. N. — A dictionnary of useful and everyday plants and their common names. In: Journal d'agriculture tropicale et de botanique appliquée, vol. 22, n°1-3, Janvier-février-mars 1975. p. 78

    Long-term growth in vitro of isolated, fully differentiated neurones from the central nervous system of an adult insect

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    A method is described for the isolation and growth in vitro of fully differentiated neurones from the thoracic ganglia of adult cockroaches. The presence of insect blood in the culture system is shown to promote growth. The morphology of the growing neurones and the plasticity of the branching processes are described and growth rates are measured. Using a fluorescent Ca2+ indicator dye, changes of intracellular calcium levels in the growing neurones in response to K+ depolarization have been measured. The results, indicating the presence of voltage-dependent Ca2+ channels on neuronal processes in vitro, show that neurones can be maintained in a functional state for several weeks by this technique. Such preparations could prove useful for studying a variety of physiological and pharmacological properties of neurones, including the mechanisms controlling growth, synapse formation and neuronal interactions with other cell types. <br/

    Toward a Credible Pacifism: Violence and the Possibilities of Politics

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    Advocates of pacifism usually stake their position on the moral superiority of nonviolence and have generally been reluctant or unwilling to concede that violence can be an effective means of conducting politics. In this compelling new work, which draws its examples from both everyday experience and the history of Western political thought, author Dustin Ells Howes presents a challenging argument that violence can be an effective and even just form of power in politics. Contrary to its proponents, however, Howes argues that violence is no more reliable than any other means of exercising power. Because of this there is almost always a more responsible alternative. He distinguishes between violent and nonviolent power and demonstrates how the latter can confront physical violence and counter its claims. This brand of pacifism gives up claims to moral superiority but recuperates a political ethic that encourages thoughtfulness about suffering and taking responsibility for our actions.https://repository.lsu.edu/facultybooks/1404/thumbnail.jp

    A new and accurate map of New South Wales with Norfolk and Lord Howes Islands, Port Jackson from actual surveys [cartographic material] /

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    Map of east coast of Australia with islands of Norfolk, Lord Howe and New Caledonia. Relief shown by hachures.; Plate probably from: A general atlas being a collection of maps of the world and quarters of the principal empires, kingdoms. London : R. Wilkinson, 1800-[1802].; Prime meridian: London.; Phillips, 696.; Tooley, 1358.; Ferguson Collection Map F 474.; Library copy has annotation "43" in top right hand margin. Insets: Ld. Howes Islands -- An accurate survey of Norfolk Island -- Port Jackson Botany Bay &c. Relief shown by hachures

    The effects of cannabinoid 1 receptor compounds on memory: a meta-analysis and systematic review across species

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    Rationale: While cannabis-based medicinal products have been shown to be effective for numerous neurological and psychiatric disorders, the evidence base regarding their adverse cognitive effects is poorly understood. The cannabinoid 1 receptor modulates memory performance via intracellular and extracellular mechanisms that alter synaptic transmission and plasticity. While previous literature has consistently shown that chronic cannabis users exhibit marked cognitive impairments, mixed findings have been reported in the context of placebo-controlled experimental trials. It is therefore unclear whether these compounds inherently alter cognitive processes or whether individuals who are genetically predisposed to use cannabis may have underlying cognitive deficits. Objective: We conducted a meta-analysis to investigate the effects of full and partial cannabinoid 1 receptor (CB1R) agonists, antagonists, and negative allosteric modulators on non-spatial and spatial memory. Methods: In accordance with the PRISMA guidelines, the EMBASE, MEDLINE, and PsycINFO databases were systematically searched for studies examining the effects of CB1R agonists, antagonists, and negative allosteric modulators on memory performance. Results: We systematically reviewed 195 studies investigating the effects of cannabinoid compounds on memory. In humans (N = 35 studies, comprising N = 782 subjects), delta-9-tetrahydrocannabinol (THC) (1.5–5 mg/kg) relative to placebo impaired performance on non-spatial memory tests, whereas only high THC doses (67 mg/kg) impaired spatial memory. Similarly, THC (0.2–4 mg/kg) significantly impaired visuospatial memory in monkeys and non-human primates (N = 8 studies, comprising N = 71 subjects). However, acute THC (0.002–10 mg/kg) had no effect on non-spatial (N = 6 studies, comprising 117 subjects; g = 1.72, 95% confidence interval (CI) − 0.18 to 3.63, p = 0.08) or spatial memory (9 studies, comprising 206 subjects; g = 0.75, 95% confidence interval (CI) − 1.09 to 2.58, p = 0.43). However, acute, full CB1R agonists significantly impaired non-spatial memory (N = 23 studies, 519 subjects; g = − 1.39, 95% CI − 2.72 to − 0.06, p = 0.03). By contrast, the chronic administration of CB1R agonists had no effect on non-spatial memory (N = 5 studies, comprising 146 subjects; g = − 0.05, 95% confidence interval (CI) − 1.32 to 1.22, p = 0.94). Moreover, the acute administration of CB1R antagonists had no effect on non-spatial memory in rodents (N = 9 studies, N = 149 subjects; g = 0.40, 95% CI − 0.11 to 0.92, p = 0.12). Conclusions: The acute administration of THC, partial CB1R agonist, significantly impaired non-spatial memory in humans, monkeys, and non-human primates but not rodents. However, full CB1R agonists significantly impaired non-spatial memory in a dose-dependent manner but CB1R antagonists had no effect on non-spatial memory in rodents. Moreover, chronic THC administration did not significantly impair spatial or non-spatial memory in rodents, and there is inconclusive evidence on this in humans. Our findings highlight species differences in the effects of cannabinoid compounds on memory

    The use of the personal narrative in social work with the elderly

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    CITATION: Howes, F. 2006. The use of the personal narrative in social work with the elderly. Social Work, 42(3):299-306, doi:10.15270/42-3-301.The original publication is available at http://socialwork.journals.ac.zaThis article describes how a lifespan approach to personality, with its developmental stages, and constructionism have broadened the knowledge base of social work practice. This has also enlarged interventive knowledge by adding the constructed narrative as a tool at the disposal of the social worker. The narrative directs the interventive process. In social work with the elderly reminiscence and life review are important elements. Narrative theraphy can successfully accommodate these elements.http://socialwork.journals.ac.za/pub/article/view/301Publisher's versio

    Assessing the vulnerability of buildings to tsunami in Sydney

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    Australia is vulnerable to the impacts of tsunamis and exposure along the SE coast of New South Wales is especially high. Significantly, this is the same area reported to have been affected by repeated large magnitude tsunamis during the Holocene. Efforts are under way to complete probabilistic risk assessments for the region but local government planners and emergency risk managers need information now about building vulnerability in order to develop appropriate risk management strategies. We use the newly revised PTVA-3 Model (Dall'Osso et al., 2009) to assess the relative vulnerability of buildings to damage from a "worst case tsunami" defined by our latest understanding of regional risk – something never before undertaken in Australia. We present selected results from an investigation of building vulnerability within the local government area of Manly – an iconic coastal area of Sydney. We show that a significant proportion of buildings (in particular, residential structures) are classified as having "High" and "Very High" Relative Vulnerability Index scores. Furthermore, other important buildings (e.g., schools, nursing homes and transport structures) are also vulnerable to damage. Our results have serious implications for immediate emergency risk management, longer-term land-use zoning and development, and building design and construction standards. Based on the work undertaken here, we recommend further detailed assessment of the vulnerability of coastal buildings in at risk areas, development of appropriate risk management strategies and a detailed program of community engagement to increase overall resilience
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