150 research outputs found

    Correspondence: Thank you letter to Dr. Saffy from Bill Hodges

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    A thank you note to Dr. Saffy in support of Bill Hodges campaign, July 10, 1987

    Building Bridges Toward Science Careers for Youth with Disabilities

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    Several researchers have addressed the issue of accommodating students with disabilities in college science classrooms (Brazier, Parry, & Fischbach, 2000; Womble & Walker, 2001). However, little research has focused on the types of accommodations and supports needed for students with disabilities at the college level (Stodden, 2000). This brief outlines results of research conducted by the Bridges Project funded by the National Science Foundation Program for Persons with Disabilities. The major goals of the project were (a) to create a model facilitating greater access for students with disabilities to postsecondary education and careers in science and technology, and (b) to investigate issues related to the transition from high school to college for students with disabilities

    Conservation of ciliary proteins in plants with no cilia

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    <p>Abstract</p> <p>Background</p> <p>Eukaryotic cilia are complex, highly conserved microtubule-based organelles with a broad phylogenetic distribution. Cilia were present in the last eukaryotic common ancestor and many proteins involved in cilia function have been conserved through eukaryotic diversification. However, cilia have also been lost multiple times in different lineages, with at least two losses occurring within the land plants. Whereas all non-seed plants produce cilia for motility of male gametes, some gymnosperms and all angiosperms lack cilia. During these evolutionary losses, proteins with ancestral ciliary functions may be lost or co-opted into different functions.</p> <p>Results</p> <p>Here we identify a core set of proteins with an inferred ciliary function that are conserved in ciliated eukaryotic species. We interrogate this genomic dataset to identify proteins with a predicted ancestral ciliary role that have been maintained in non-ciliated land plants. In support of our prediction, we demonstrate that several of these proteins have a flagellar localisation in protozoan trypanosomes. The phylogenetic distribution of these genes within the land plants indicates evolutionary scenarios of either sub- or neo-functionalisation and expression data analysis shows that these genes are highly expressed in <it>Arabidopsis thaliana </it>pollen cells.</p> <p>Conclusions</p> <p>A large number of proteins possess a phylogenetic ciliary profile indicative of ciliary function. Remarkably, many genes with an ancestral ciliary role are maintained in non-ciliated land plants. These proteins have been co-opted to perform novel functions, most likely before the loss of cilia, some of which appear related to the formation of the male gametes.</p

    REPEATABILlTY OF INTRAMUSCULAR ELECTROMYOGRAPHIC RECORDINGS DURING CYCLING

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    Fine-wire electromyographic (fEMG) techniques are indicated for the study of distal lower limb muscle recruitment during cycling, but evidence to support the repeatability of fEMG recordings is contradictory. This study investigated the repeatability of fEMG recordings from tibialis anterior (TA), tibialis posterior (TP), peroneus longus (PL), gastrocnemius lateralis (GL) and soleus (SOL) during cycling. The repeatability of fEMG recordings normalised to maximum measured EMG amplitude was high, with mean coefficients of multiple correlation (CMC) ranging from .82 .15 (GL) to .89 .09 (TA). The repeatability of fEMG recordings increased with greater test-retest intervals (p < .008). Data normalised to maximal or submaximal contractions were less repeatable (p < .001). These findings support the use of fEMG techniques to investigate distal lower limb muscle recruitment during cycling

    MULTIDISCIPLlNE TRAINING DEMANDS MAY IMPAIR ADAPTATION OF THE NEUROMUSCULAR SYSTEM IN TRIATHLETES

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    Muscle recruitment during cycling is highly consistent and constrained in trained cyclists relative to novice cyclists (Chapman et aI., 2004). This is consistent with previous evidence that adaptation of the neuromuscular system occurs with repeated performance of a motor task. Muscle recruitment in triathletes has not been investigated. Triathletes undertake similar cycling training loads to specialist cyclists, but must also undertake very high running and swimming training loads. The influence of these multidiscipline training demands on muscle recruitment remains unknown. This study compared patterns of distal lower limb muscle recruitment during cycling in triathletes, trained cyclists and novice cyclists

    Single leg stance control in individuals with symptomatic gluteal tendinopathy

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    Background Lateral hip pain during single leg loading, and hip abductor muscle weakness, are associated with gluteal tendinopathy, but it has not been shown how or whether kinematics in single leg stance differ in those with gluteal tendinopathy. Purpose To compare kinematics in preparation for, and during, single leg stance between individuals with and without gluteal tendinopathy, and the effect of hip abductor muscle strength on kinematics. Methods Twenty individuals with gluteal tendinopathy and 20 age-matched pain-free controls underwent three-dimensional kinematic analysis of single leg stance and maximum isometric hip abductor strength testing. Maximum values of hip adduction, pelvic obliquity (contralateral pelvis rise/drop), lateral pelvic translation (ipsilateral/contralateral shift) and ipsilateral trunk lean during preparation for leg lift and average values in steady single leg stance, were compared between groups using an analysis of covariance, with and without anthropometric characteristics and strength as covariates. Results Individuals with gluteal tendinopathy demonstrated greater hip adduction (standardized mean difference (SMD)\ua0=\ua00.70, P\ua0=\ua00.04) and ipsilateral pelvic shift (SMD\ua0=\ua01.1, P\ua0=\ua00.002) in preparation for leg lift, and greater hip adduction (SMD\ua0=\ua01.2, P\ua0=\ua00.002) and less contralateral pelvic rise (SMD\ua0=\ua00.86, P\ua0=\ua00.02) in steady single leg stance than controls. When including strength as a covariate, only between-group differences in lateral pelvic shift persisted (SMD\ua0=\ua01.7, P\ua0=\ua00.01). Conclusion Individuals with gluteal tendinopathy use different frontal plane kinematics of the hip and pelvis during single leg stance than pain-free controls. This finding is not influenced by pelvic dimension or the potentially modifiable factor of body mass index, but is by hip abductor muscle weakness

    Grain sorghum production calendar

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    The Oklahoma Cooperative Extension Service periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311

    Campus Vol V N 2

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    Gillies, Jean. Cover. Picture. 0. Gould, Jim. A Christmas Carol...A Modern Tragedy . Prose. 3. MacDonald, Honnie. More Sinned Against . Prose. 4. Olwin, Lynn. Campus Calender Queens For Christmas . Poem. 7. Trimble, John. Campus Calender Queens For Christmas . Picture. 7. Bedell, Barrie and John Hodges. Shopping Guide For Christmas Prose. 15. Yearling, Joe. Sport Shorts . Prose. 16. Dresser, Bill. Tenth Anniversary . Prose. 18. Gleason, Sally. Lost Christmas . Prose. 17

    Effect of a consumer-focused website for low back pain on health literacy, treatment choices, and clinical outcomes: randomized controlled trial

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    BACKGROUND: The internet is used for information related to health conditions, including low back pain (LBP), but most LBP websites provide inaccurate information. Few studies have investigated the effectiveness of internet resources in changing health literacy or treatment choices. OBJECTIVE: This study aims to evaluate the effectiveness of the MyBackPain website compared with unguided internet use on health literacy, choice of treatments, and clinical outcomes in people with LBP. METHODS: This was a pragmatic, web-based, participant- and assessor-blinded randomized trial of individuals with LBP stratified by duration. Participants were randomly allocated to have access to the evidence-based MyBackPain website, which was designed with input from consumers and expert consensus or unguided internet use. The coprimary outcomes were two dimensions of the Health Literacy Questionnaire (dimension 2: “having sufficient information to manage my health;” dimension 3: “actively managing my health;” converted to scores 1-100) at 3 months. Secondary outcomes included additional Health Literacy Questionnaire dimensions, quality of treatment choices, and clinical outcomes. RESULTS: A total of 453 participants were recruited, and 321 (70.9%) completed the primary outcomes. Access to MyBackPain was not superior to unguided internet use on primary outcomes (dimension 2: mean difference −0.87 units, 95% CI −3.56 to 1.82; dimension 3: mean difference −0.41 units, 95% CI −2.78 to 1.96). Between-group differences in other secondary outcomes had inconsistent directions and were unlikely to be clinically important, although a small improvement of unclear importance in the quality of stated treatment choices at 1 month was found (mean difference 0.93 units, 95% CI 0.03 to 1.84). CONCLUSIONS: MyBackPain was not superior to unguided internet use for health literacy, but data suggest some short-term improvement in treatment choices. Future research should investigate if greater interactivity and engagement with the website may enhance its impact. TRIAL REGISTRATION: Australian New Zealand Clinical Trials Registry (ANZCTR) ACTRN12617001292369; https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=372926 INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): RR2-10.1136/bmjopen-2018-02751

    Iliocapsularis: technical application of fine-wire electromyography, and direction specific action during maximum voluntary isometric contractions

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    The iliocapsularis muscle of the anterior hip may play an important role in hip function, but no electromyographic (EMG) recordings have been made. This muscle provides the most substantial muscular attachment to the anterior hip capsule and is hypothesised to have a dynamic role to limit capsular impingement and to augment joint stability. Current understanding of the function of iliocapsularis is based on limited cadaveric and radiographic studies. Located deep over the hip joint it would require intramuscular fine-wire EMG to evaluate its activity directly with limited cross-talk from overlying muscles. The primary aim of this study was to describe a new technique for insertion of intramuscular EMG electrodes into iliocapsularis and to report its activation during different directions of hip maximum voluntary isometric contraction (MVIC). Fifteen healthy volunteers (10 M, mean age (SD) 22 (2) years) who were free from hip pain were recruited for electrode insertion and to perform MVIC's in six directions at 0° and three directions at 90° of hip flexion. Intramuscular electrodes were successfully inserted into the iliocapsularis muscle with guidance from real-time ultrasound imaging. The greatest muscle activity occurred during resisted hip flexion at 90° (Median (IQR); 100.0 (1.2) % MVIC) and lowest activity during hip extension, 0° (0.5 (0.3) % MVIC). These findings have implications for our understanding of iliocapsularis’ functional role. This paper provides the first report of intramuscular electrode insertion into iliocapsularis with guided technical instructions for future EMG investigations in other populations and tasks
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