12,261 research outputs found
The geochemistry of soluble salts in the Wright and Taylor Valleys, South Victoria Land, Antarctica
No full textSamples of salt deposits, snow, meltwater and soils were collected in the Wright and Taylor Valleys, South Victoria Land, during the summer field season of 1973-74. The primary aim of the work carried out was to demonstrate the application of chemical techniques to geological problems in the Dry Valleys of Antarctica.
Salt samples identified by X-ray diffraction patterns were halite, thenardite and mirabilite. Snow, ice and groundwater samples were analysed for Na⁺, Ca²⁺, Mg²⁺, K⁺. Cl⁻ and SO₄²⁻. The results show that atmospheric transport from the sea is probably the most important source of supply of salts to the Dry Valley system, with saline groundwater flows as important means of transport of salts to the Dry Valley lakes
Inertial Taylor rules: the benefit of signaling future policy
No full textThis article traces the consequences of an energy shock on the economy under two different monetary policy rules: (i) a standard Taylor rule, where the Fed responds to inflation and the output gap, and (ii) a Taylor rule with inertia, where the Fed moves slowly to the rate predicted by the standard rule. The authors show that, with both sticky wages and sticky prices, the outcome of an inertial Taylor rule is superior to that of the standard rule, in the sense that inflation is lower and output is higher following an adverse energy shock. However, if prices alone are sticky, the results are less clear and the standard rule delivers substantially less inflation than the inertial rule in the short run.Taylor's rule
Dublin City University at CLEF 2006: Cross-Language Speech Retrieval (CL-SR) experiments
No full textThe Dublin City University participation in the CLEF
2006 CL-SR task concentrated on exploring the combination of the multiple fields associated with the documents. This was based on use of the extended BM25F field combination model originally developed for multi-field text documents. Additionally, we again conducted runs with our existing information retrieval methods based on the Okapi model. This latter method required an approach to determining approximate sentence boundaries within the free-flowing automatic transcription provided, to enable us to use our summary-based pseudo relevance feedback (PRF). Experiments were conducted for the English document collection with topics translated into English using Systran V3.0 machine translation
Escapist policy rules
No full textWe study a simple, microfounded macroeconomic system in which the monetary authority employs a Taylor-type policy rule. We analyze situations in which the self-confirming equilibrium is unique and learnable according to Bullard and Mitra (2002). We explore the prospects for the use of ‘large deviation’ theory in this context, as employed by Sargent (1999) and Cho, Williams, and Sargent (2002). We show that our system can sometimes depart from the self-confirming equilibrium towards a non-equilibrium outcome characterized by persistently low nominal interest rates and persistently low in- flation. Thus we generate events that have some of the properties of “liquidity traps” observed in the data, even though the policymaker remains committed to a Taylor-type policy rule which otherwise has desirable stabilization properties.Monetary policy ; Inflation (Finance) ; Interest rates
Escapist policy rules
No full textWe study a simple, microfounded macroeconomic system in which the monetary authority employs a Taylor-type policy rule. We analyze situations in which the self-confirming equilibrium is unique and learnable according to Bullard and Mitra (2002). We explore the prospects for the use of 'large deviation' theory in this context, as employed by Sargent (1999) and Cho, Williams, and Sargent (2002). We show that our system can sometimes depart from the self-confirming equilibrium towards a non-equilibrium outcome characterized by persistently low nominal interest rates and persistently low inflation. Thus we generate events that have some of the properties of "liquidity traps" observed in the data, even though the policymaker remains committed to a Taylor-type policy rule which otherwise has desirable stabilization properties
Escapist Policy Rules
No full textWe study a simple, microfounded macroeconomic system in which the monetary authority employs a Taylor-type policy rule. We analyze situations in which the self-confirming equilibrium is unique and learnable according to Bullard and Mitra (2002). We explore the prospects for the use of ‘large deviation’ theory in this context, as employed by Sargent (1999) and Cho, Williams, and Sargent (2002). We show that our system can sometimes depart from the self-confirming equilibrium towards a non-equilibrium outcome characterized by persistently low nominal interest rates and persistently low inflation. Thus we generate events that have some of the properties of “liquidity traps” observed in the data, even though the policymaker remains committed to a Taylor-type policy rule which otherwise has desirable stabilization properties.Learning, monetary policy rules, escape dynamics
Early motor development is part of the resource mix for language acquisition - a commentary on Iverson's 'Developing language in a developing body: the relationship between motor development and language development'
No full textReview Article and CommentariesEarly motor development is part of the resource mix for language acquisition – a commentary on Iverson's ‘Developing language in a developing body: the relationship between motor development and language development’* * Article author query * taylor cl [PubMed] [Google Scholar]CATHERINE L. TAYLORa1 c1a1 Curtin Health Innovation Research Institute, Centre for Developmental Health, Telethon Institute for Child Health Research, Population Sciences DivisionCorrespondence:c1 Address for correspondence: Catherine Louise Taylor, Telethon Institute for Child Health Research, PO Box 855, West Perth, Western Australia 6872. tel. 61+8+94897740; fax: 61+8+94897700; email: [email protected][*] The preparation of this paper was supported by National Institutes of Health funding, 2R01DC05226
Prevalence and associations of hand pain in the community: results from a population-based study
No full textObjectives: To assess the prevalence and associations of hand symptoms in a community setting. Methods: The North West Adelaide Health Study (NWAHS) is a longitudinal cohort study of people aged ≥ 18 years. Analysis was performed in participants who completed a telephone interview, a quality of life questionnaire [the 36‐item short-form health survey, (SF-36)], and the Australian/Canadian (AUSCAN) Osteoarthritis (OA) Hand Index, and underwent grip strength measurement. Results: Overall, 477 (13.7%) reported hand pain, aching, or stiffness. Of these, 169 (35.8%) had been diagnosed with hand arthritis. Women were more likely to have hand symptoms than men, as were those aged ≥ 50 years (p < 0.001). Hand symptoms were associated with lower quality of life scores (p < 0.05). Participants with hand arthritis had more severe pain, stiffness, and poorer physical functioning as reflected by higher AUSCAN scores. Grip strength was reduced in those with hand symptoms and hand arthritis (p < 0.05) and inversely associated with mean AUSCAN subscores and SF-36 physical functioning scores (p < 0.001). Conclusions: Hand symptoms were present in 14% of the population and were more common in women and those aged ≥ 50 years. Hand symptoms were associated with reduced grip strength and reduced quality of life. Hand arthritis was associated with higher AUSCAN scores. Hand symptoms and hand arthritis have a significant impact on physical functioning and quality of life.A Cole, TK Gill, AW Taylor, CL Hil
Open access self-archiving: An author study
No full textThis, our second author international, cross-disciplinary study on open access had 1296 respondents. Its focus was on self-archiving. Almost half (49%) of the respondent population have self-archived at least one article during the last three years. Use of institutional repositories for this purpose has doubled and usage has increased by almost 60% for subject-based repositories. Self-archiving activity is greatest amongst those who publish the largest number of papers. There is still a substantial proportion of authors unaware of the possibility of providing open access to their work by self-archiving. Of the authors who have not yet self-archived any articles, 71% remain unaware of the option. With 49% of the author population having self-archived in some way, this means that 36% of the total author population (71% of the remaining 51%), has not yet been appraised of this way of providing open access. Authors have frequently expressed reluctance to self-archive because of the perceived time required and possible technical difficulties in carrying out this activity, yet findings here show that only 20% of authors found some degree of difficulty with the first act of depositing an article in a repository, and that this dropped to 9% for subsequent deposits. Another author worry is about infringing agreed copyright agreements with publishers, yet only 10% of authors currently know of the SHERPA/RoMEO list of publisher permissions policies with respect to self-archiving, where clear guidance as to what a publisher permits is provided. Where it is not known if permission is required, however, authors are not seeking it and are self-archiving without it. Communicating their results to peers remains the primary reason for scholars publishing their work; in other words,
researchers publish to have an impact on their field. The vast majority of authors (81%) would willingly comply with a mandate from their employer or research funder to deposit copies of their articles in an institutional or subject-based repository. A further 13% would comply reluctantly; 5% would not comply with such a mandate
Progress of international hydrogen production network for the thermochemical Cu–Cl cycle
No full textThis paper presents recent advances by an international team which is developing the thermochemical copper–chlorine (Cu–Cl) cycle for hydrogen production. Development of the Cu–Cl cycle has been pursued by several countries within the framework of the Generation IV International Forum (GIF) for hydrogen production with the next generation of nuclear reactors. Due to its lower temperature requirements in comparison with other thermochemical cycles, the Cu–Cl cycle is particularly well matched with Canada's Generation IV reactor, SCWR (Super-Critical Water Reactor), as well as other heat sources such as solar energy or industrial waste heat. In this paper, recent developments of the Cu–Cl cycle are presented, specifically involving unit operation experiments, corrosion resistant materials and system integration.Atomic Energy of Canada LimitedOntario Research Excellence FundNatural Sciences and Engineering Research Council of CanadaUniversity Network of Excellence in Nuclear Engineering (UNENE)Canada Research Chairs progra
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