133,034 research outputs found
The nature of Christian mysticism in the thought of Baron von Huegell and George Tyrrell
No full textThis thesis seeks to establish the place of Baron von aigel and George Tyrrell in the revival of interest in mysticism at the beginning of the present century. Though leading figures in the modernist movement in the Roman Catholic Church, their collaboration on the subject of mysticism was central to their friendship and work. They helped to
retrieve the central concerns of mystical theology after a retreat from mysticism which had affected the Church since the condemnation of Quietism in 1699. Their account of Christian mysticism, which involved a critique of Buddhism, neo-Platonism and pantheism, rested on a worldaffirming
attitude to creation, a balance between divine transcendence
and immanence and the articulation of a legitimate panentleism. It also involved a positive acceptance of the bodily-spiritual unity of human nature and ordinary experience as the locus of mystical encounter with
God.
Their account also emphasised the reality of direct contact between God and the individual, and the affective and cognitive dimensions of mystical experience. They asserted the centrality of mystical union as a dynamic communion of life, love and action which is the primary goal of the Christian life. They emphasised the necessity of contemplation, understood not as passive inaction, but as a profound energising of the soul. Asceticism, the embracing of suffering, self-discipline and a right ordering of human affection, was also judged indispensable. Moreover,
they believed that only in the context of the intellectual and institutional elements of religion, does mysticism find its true theological locus in Christian life and reflection. Their comprehensive definition of mysticism opened up the possibility of understanding both the uniqueness of Christian mysticism, and the reality and value of non-Christian forms of mystical experience as genuine encounters with the divine. Accepting a universal call to mysticism, they held the mystical way to be the way to full humanity which is also the individual's realisation of divinity
Alaska 1898
No full textShows routes ; Relief shown by hachures and spot heights. Depths shown by soundings ; Includes distance charts and notes ; Insets: Map of Juneau to Miles Canyon -- Key map of Alaska -- Section of sample Klondike mine. appeared in Sam. D. Dunham's report on The Alaskan Gold Fields and the Opportunities They Offer for Capital and Labor, one of the earliest reports on the gold fields (Bulletin of the Department of Labor No. 16, May, 1898).This map was photolithographed and published by Norris Peters Co. in Washington, D.C., compiled by J.B. Tyrrell and engraved by William Bauman Jr. It provides an excellent over view of the various routes to central Alaska's the Yukon. Statistical tables provide information and notes regarding the experiences of a number of the explorers who opened the routes. Some of the notes are quite colorful such as for the Copper River, Tyrrell notes "Mr. Davies the only white man who has journeyed from the source to mouth of the Copper River states that his surface prospecting failed to show traces of gold, but indications of copper were strong ..." Within the body of the map are notes on the depth and navigability of certain rivers, portage information, speed of the currents in rivers, height of falls and other details for travelers. There is also an inset "Map of Juneau to Miles Canyon." -ARC-Color1:1,584,00
Rhipidocladum arenicolum C. D. Tyrrell & L. G. Clark 2013, sp. nov.
No full text<i>Rhipidocladum arenicolum</i> C.D. Tyrrell & L.G. Clark, <i>sp. nov.</i>, Fig 2. <p> Type:— PERU. San Martín. Rioja: Low forest over white sands, ca. 1 km above Aquas Verdes along trail to San Pablo, 5°41'14"S 77°37'58"W, 1200 m, 7 July 2002 (fl), <i>J. L. Luteyn, I. Sánchez-Vega, & M. Zapata Cruz 15520</i> (holotype: USM!; isotypes: ISC!, MO!, NY!, US!).</p> <p> <b>Diagnosis:—</b> <i>Rhipidocladum arenicolum</i> differs from <i>R. harmonicum</i> in its smaller culm diameter (5–8 mm), longer branches (57–65 cm), longer (16–23 cm) synflorescences and larger florets (lemmas 18.5–19 mm).</p> <p> <b>Description:—</b> Culm height unknown; internodes ca. 26 cm long, 5–8 mm diameter, hollow. Culm leaves unknown. Branch complements with 18–25 branchlets, branchlets 57–65 cm long, occasionally rebranching from the base. Foliage leaves 4–6 per flowering branchlet; sheaths 32–54 mm long, abaxially glabrous, margins glabrous; fimbriae 1–3 mm long, stramineous to brown, mostly deciduous; pseudopetioles 4–5 mm long, abaxially glabrous, adaxially puberulent, dark brown; inner ligules ca. 0.5 mm, truncate; blades 7–10 cm long, 13–17 mm wide, L:W ratio 5–6, broadly lanceolate, abaxially and adaxially glabrous, base rounded, apex acuminate, margins smooth. Synflorescences 16–23 cm long, spicate, bearing 6–7(–8) spikelets spaced 20–40 mm apart; rachis at least apically geniculate. Spikelets 4.4–5.0 cm long, comprising 2–3 glumes and 6– 7 fertile florets; rachilla internodes (2–) 4 mm long. Lowest glume ca. 4 mm long, 7-nerved, ovate-lanceolate, apex obtuse, abaxially glabrous, mucronate; upper glumes ovate-lanceolate, apex obtuse, abaxially glabrous, adaxially puberulent: second glume ca. 9 mm long, 7-nerved, mucronate; third glume ca. 11 mm long, 9- nerved, mucronate. Lemma 18.5–19.0 mm long, 13-nerved, ovate-lanceolate, apex obtuse, abaxially glabrous, mucronate. Palea ca. 13 mm long, abaxially glabrous, adaxially scabrous, stramineous. Lodicules 3, the anterior pair ca. 6 mm long, posterior one ca. 4 mm long, lanceolate. Anthers 7–8 mm long. Ovary ca. 1.7 mm long, white. Caryopsis ca. 6.5 mm long, 2 mm wide, fusiform, subterete, glabrous, style base persistent, dark brown.</p> <p> <b>Distribution and Habitat:—</b> Known only from the type locality, growing in (and possibly endemic to) a white sand forest at 1200 m elevation in northern Peru.</p> <p> <b>Etymology:—</b> Named for the habitats with white sandy soils where it occurs: <i>aren-</i> = sand, <i>cola</i> = dwelling.</p>Published as part of <i>Tyrrell, Christopher D. & Clark, Lynn G., 2013, Three new species of Rhipidocladum (Poaceae: Bambusoideae: Arthrostylidiinae) from South America, pp. 55-64 in Phytotaxa 98 (2)</i> on page 58, DOI: 10.11646/phytotaxa.98.2.3, <a href="http://zenodo.org/record/5072461">http://zenodo.org/record/5072461</a>
Development of a microfluidic based analytical system for copper monitoring in environmental water samples
No full textA microfluidic-based system has been developed for copper (II) monitoring in water samples with sensitive and selective detection, based on the measurement of light emitted from the copper (II) catalysed oxidation of 1,10-phenanthroline by hydrogen peroxide. Work initially focussed on the development of a flow injection analysis (FIA) system with micellar enhanced chemiluminescence (CL) detection. Sufficient selectivity was achieved by removing interfering metal ions using an on-line itaconic acid modified microcolumn, allowing copper (II) to be easily determined at concentrations as low as 1 jig L_1 from high concentrations of calcium (II) and magnesium (II).
The FIA-CL system was further developed and scaled-down to create a microfluidicbased system. A number of different microflow devices, of various designs and dimensions, were manufactured from polymethylmethacrylate (PMMA). A range of in-house micro-fabrication techniques were investigated for the fabrication of the microfluidic devices including hot embossing, laser ablation and direct micromilling. A complete miniaturised flow system was developed incorporating miniaturised peristaltic pumps, a microfluidic plastic manifold and a compact photomultiplier tube for CL detection. Experimental conditions including reagent concentrations and flow rates were optimised and the system was found to produce linear results for copper (II) over the concentration range 0 to 150 jxg L‘\.
Selectivity of the microfluidic-based CL system was further enhanced by incorporating an on-line separation step into the microflow manifold. A number of different solid phases were compared and contrasted for the on-line separation of copper (II) from complex sample matrices. These included incorporating a stationary phase e.g. monolithic and chelating resin micro-columns into the plastic microflow device and the use of on-line modified Convective-Interaction Media® (CIM®) disk monolithic columns. Finally the optimised system was successfully used for trace copper (II) determinations in a standard reference freshwater sample (SRM 1640) and in real water samples
NutGEnIE 1.0: nutrient cycle extensions to the cGEnIE Earth system model to examine the long-term influence of nutrients on oceanic primary production
No full textUnderstanding the nuances of the effects of nutrient limitation on oceanic primary production has been the focus of many bioassay experiments by oceanographers. A theme of these investigations is that they identify the currently limiting nutrient at a given location, or in other words they identify the proximate limiting nutrient (PLN). However, the ultimate limiting nutrient (ULN; the nutrient whose supply controls system productivity over extensive timescales) can be different from the PLN. Our motivation is to investigate the identity of the ULN. The ULN constrains oceanic primary production over extensive timescales and consequently overall ocean fertility. The rate of oceanic photosynthesis affects planetary oxygen and carbon dioxide, impacting climate. Understanding past ocean fertility is fundamental to understanding Earth system history and biological evolution.Investigations that have considered the ULN have often utilised box models for example the work of, Tyrrell (1999) and Lenton and Watson (2000). To facilitate investigation of the ULN the carbon-centric Grid Enabled Integrated Earth system model (cGEnIE) nutrient cycles have been extended to create NutGEnIE. NutGEnIE incorporates three open nutrients cycles nitrogen, phosphorus, and iron. The impacts of diazotrophs, capable of fixing nitrogen, are represented alongside those of other phytoplankton. NutGEnIE is capable of extended duration model simulations necessary to investigate the ULN while, at the same time, including iron as a potentially limiting nutrient. NutGEnIE is described here, with particular focus on the biogeochemical cycles of iron, nitrogen and phosphorus. Model results are compared to ocean observational data to assess the degree of realism. Model-data comparisons include physical properties, nutrient concentrations, and process rates (e.g., export and nitrogen fixation). The comparisons of NutGEnIE to ocean observational data are largely positive, suggesting that the dynamics of NutGEnIE are valid. The validations, allied to the ability to run an Earth System model with open nutrients cycles of nitrogen, phosphorus, and iron over extensive time periods supports the proposed use of NutGEnIE to revisit the question of the ULN for oceanic primary production
I want to be in Australia now [music] : song /
No full textFor voice and piano.; Caption title.; Also available online http://nla.gov.au/nla.mus-vn3310443
Three new species of Rhipidocladum (Poaceae: Bambusoideae: Arthrostylidiinae) from South America
No full textTyrrell, Christopher D., Clark, Lynn G. (2013): Three new species of Rhipidocladum (Poaceae: Bambusoideae: Arthrostylidiinae) from South America. Phytotaxa 98 (2): 55-64, DOI: 10.11646/phytotaxa.98.2.3, URL: http://dx.doi.org/10.11646/phytotaxa.98.2.
FIGURE 3. Rhipidocladum cordatum. A. Branch complement, B. Apsidate branching pattern, C. Culm leaf, D in Three new species of Rhipidocladum (Poaceae: Bambusoideae: Arthrostylidiinae) from South America
No full textFIGURE 3. Rhipidocladum cordatum. A. Branch complement, B. Apsidate branching pattern, C. Culm leaf, D. Close up of culm leaf blade base showing "pleats" (a folding or puckering of the blade tissue across the venation) illustrated with stippling, E. Foliage leaf ligular area, F. Synflorescence, G. Spikelet. Illustration by Anna B. Gardner; A, C, D, and E based on Clark et al. 1092, B based on Clark & Asimbaya 1415, F and G based on Young 164.Published as part of Tyrrell, Christopher D. & Clark, Lynn G., 2013, Three new species of Rhipidocladum (Poaceae: Bambusoideae: Arthrostylidiinae) from South America, pp. 55-64 in Phytotaxa 98 (2) on page 60, DOI: 10.11646/phytotaxa.98.2.3, http://zenodo.org/record/507246
A hybrid bio-inspired system: hardware spiking neural network incorporating Hebbian learning with microprocessor based evolutionary control algorithm
No full textThe objective of the work reported in this paper was the development of an application that combined evolution and learning on a hardware platform. This was achieved on two different platforms: a COTS FPGA and a new device specifically designed for bio-inspired implementations, termed the POEtic chip. The learning process is based around a spiking neural network with Hebbian learning
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