2,095 research outputs found

    Relations between acoustic and articulatory measurements of /l/

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    Variation in the production of English /l/ has received significant study. It has been characterized in terms of categorical allophones, in terms of acoustic properties, and in terms of articulatory timing. Using a parallel corpus of acoustic-articulatory data from two speakers of American English, this study looks at the relations between acoustic and articulatory measurements of /l/ across words in corpus of read speech. We find significant negative correlations between F1 and tongue tip height and significant positive correlations between F2 and tongue body retraction. Additionally, we find that the relative timing of tongue tip and tongue back gestures in our data are consistent with past work on positional variants of /l/

    SPECTRAL ANALYSIS V. WHOLE-BAND ANALYSIS OF ROTATION-VIBRATION BANDS OF LINEAR MOLECULES - N2ON_{2}O

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    1. J. H. Shaw, C. L. Lin (preceding paper in this session)Author Institution:The whole-band analysis technique described by Shaw and Lin (1) is being applied to N2ON_{2}O absorption bands. Progress in applying this technique to N2ON_{2} O spectra obtained with a Fourier Transform Spectrometer is described

    Lack of cerebral BMAA in human cerebral cortex

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    Bioaccumulation of -methylamino-L-alanine (BMAA) through Cyanobacteria-contaminated food or water supplies has been suggested as a possible contributor to Parkinson-dementia complex (PDC) among the indigenous Chamorro of Guam as well as Alzheimer disease (AD) worldwide, a speculation that has been widely commented on in news and editorial sections of premier scientific and medical journals, and that has led to product recalls and government-sponsored assessments of public health in Europe. However, quantification of BMAA to date has been based on indirect high performance liquid chromatography methods. Given the potential global health significance, we developed a stable-isotope dilution assay for BMAA to more rigorously test its proposed bioaccumulation in cerebral cortex.Peer reviewedfinal article publishe

    Assessment of the effectiveness of cardiac rehabilitation on the maintenance of healthy lifestyle modifications: An international comparison between England and New Zealand

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    Secondary preventive Cardiac Rehabilitation (CR) programmes are the most cost effective measure for reducing mortality and morbidity associated with Cardiovascular Disease (CVD), and are now recommended internationally (BHF, 2007a). There are two structured CV rehabilitation programmes based on specific sets of guidelines: the American Cardiology Sports Medicine (ACSM) guidelines and the British Association Cardiac Rehabilitation (BACR) guidelines. New Zealand (NZ) practice under the ACSM guidelines, while the United Kingdom (UK) practice under the BACR guidelines. The purpose of this study is to compare patients CR experiences between the UK and NZ based on their effectiveness at successfully motivating patients to maintain healthy behaviours. Data was collected from non-participant observations, and focus groups with patients 6-12months post CR. Results were analysed using thematic analyses and reflection in action. Both CR programmes have been successful in supporting the individuals to maintain healthy lifestyles. A number of similar positive CR experiences were noted between groups and countries: support, education, positive mental attitude, motivation, and help to facilitate individuals to maintain healthy lifestyles. Diet and exercise were the main themes influenced. Exercising in a friendly environment, with companionship was significant to the maintenance of exercise for participants in both countries. Barriers such as physical disabilities, time constraints, and weather conditions helped to inhibit healthy behaviour maintenance. Those in NZ seemed to be more affected by external factors such as opportunity, access, and work. Individuals’ confidence appeared higher in the UK in regards to monitoring themselves. Exploring patients’ views and experiences through discussion provided an insight in these programmes, and could assist in future CR developments, addressing the barriers to such developments. The study highlighted that less monitoring in NZ is required. Also, further future developments for NZ could include improving referrals for CR intervention, and improvements in opportunities to access exercise sessions with other CV individuals. Future research into continuing social support through exercise sessions and education discussion groups could be a step towards tackling the drop-out rates in both countries

    THE DISTRIBUTION OF THE ESTIMATES OF SPECTRAL LINE PARAMETERS OBTAINED BY NONLINEAR REGRESSION ANALYSIS OF ABSORPTION SPECTRA

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    1^{1}Y. S. Chang and J. H. Shaw, Appl. Spec. 31, 213 (1977). 2^{2}P. G. Eitner, F. G. Smith, and D. R. Woods, Spie, 148, 112 (1978). 3^{3}R. J. Noll and A. Pires, Symposium on Molecular Spectroscopy, Columbus, Ohio (1979). 4^{4}C. L. Lin, J. H. Shaw, and J. G. Calvert, JQSRT 22, 253 (1979). 5^{5}Computational Methods for Data Analysis, J. Chambers, Wiley (1977). 6^{6}Least Squares Methods in Data Analysis, R. Anderssen, M. Osborne, ed., University of Queensland Press, St. Lucia (1969). 7^{7}E. Niple and J. Shaw, Appl. Spec. 33, 569 (1979).Author Institution:Several groups1,2,3,4groups^{1,2,3,4} have shown that line parameter estimates can be obtained from digitized absorption spectra by non-linear regression analysis. We are concerned with the distribution of parameter estimates and estimates of standard deviation obtained by this method of analysis. The most general technique of studying these estimates-is by simulation.5,6simulation.^{5,6} Five parameters which are used to describe the appearance of a single Lorenzian line, the background, instrument function width, line position, intensity and half width, have been studied in this way. The distributions of estimates are described and contrasted with some results of Niple and $Shaw.^{7}

    Checklist of British and Irish Hymenoptera - Braconidae

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    This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. The attached file is the published version of the article.NHM Repositor

    WHOLE-BAND ANALYSIS OF CO2CO_{2} NEAR 3.8 μ\mum

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    1^{1}C. L. Lin, J. H. Shaw, and J. G. Calvert J.Q.S.R.T. (in press) 2^{2}BMDP-77, Biomedical Computer Programs, P Series, M. B. Brown, editor, University of California Press, Berkeley (1977). 3^{3}M. L. Ralston and R. I. Jennrich, Technometrics 20, 7 (1978).Author Institution:Progress in the analysis of bands of O18C12O16O^{18}C^{12}O^{16} near 3.8 μm\mu m obtained by Fourier Transform Spectroscopy is described. The parameters of interest are obtained by non-linear regression.1,2,3regression.^{1,2,3} Estimates of five parameters for line positions, three each for halfwidths and intensities, one for resolution and estimates of standard deviation for each parameter estimate are reported for several CO2CO_{2} bands

    Hair Trigger 31

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    An anthology, edited by students, featuring the fiction, prose and creative non-fiction work of students, alumni, and staff. Editors: Joshua Alletto, Jeffrey Brennan, Shana Cooper, Sheree L. Greer, Brooke Hennen, Nadine Kenney, Nicolette Kittinger, James Lower, Santiago Martinez, Ingrid Rojas, Ilana Shabanov, Stephanie Shaw. Cover photograph: Dave Anderson. 304 pages.https://digitalcommons.colum.edu/hairtrigger/1028/thumbnail.jp

    Utah Parent Center staff photograph [2]

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    Color photograph of Utah Parent Center staff; bottom row l to right: Tina Persels, Gina Pola-Money, Jennie Gibson, Nancy Guido, Roz Welch, Cassandra Shaw-Myess; back row l to right: Esperanza, Reyer, Amy Weyrich, Vanessa Studans, Lynda Hansen, Maria Wiscombe, Patricia Vigo, Stephanie Roach, Christine Evans, Jodi Hansen, Ashlie, Baker, Amy Hurst, Michelle Murphey, Paige Albrecht, Heidi Whitaker, Jennie Dopp, Helen Post. Staff picture. Old Center location: 230 W 200 S suite 1101 Salt Lake City

    Lack of behavioral and neuropathological effects of dietary β-methylamino- l-alanine (BMAA) in mice

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    β-Methylamino- l-alanine (BMAA) is an excitotoxin allegedly involved in ALS–parkinsonism–dementia complex (ALS–PDC), a neurological disorder found in Guam and its surrounding islands, in which motor neuron disease symptoms can present alone or can co-occur with parkinsonism and dementia. Although in vitro experiments have shown BMAA's neurotoxic properties, studies using adult animals and systemic administration which better model the case of environmentally-induced human neurodegenerative diseases have not supported the involvement of BMAA in these disorders. In order to better test the hypothesized role of BMAA in neurodegeneration, we fed adult mice BMAA at a dose (28 mg/kg body weight, daily for 30 days) that reproduces the natural levels and tested the animals with a battery of behavioural tests, the latter including the evaluation of motor coordination, motor neuron-mediated reflexes, locomotion, muscular strength and memory. We also assessed whether BMAA exposure triggers cell death in the central nervous system (CNS) of mice by examining neuronal numbers and glial response in the spinal cord and the brain. No motor, cognitive or neuropathological outcome resulted from this feeding paradigm. Our findings support neither the causal role of BMAA in neurodegeneration nor the specific involvement of this amino acid in ALS–PDC.Peer reviewedfinal article publishedALS–PDCNeurotoxinNeurodegenerationExcitotoxicityβ-Methylamino-l-alanin
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