223 research outputs found

    Diversity And Ecology Of Bean Pod Mottle Virus In Mississippi

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    Sequences of 33 Bean pod mottle virus (BPMV) isolates collected from Mississippi were obtained from four regions of the viral genome. Sequences were compared mutually and to subgroups I and II type isolates. Mississippi isolates collected have greater similarity to subgroup II. Helicase sequences obtained from Mississippi isolates showed characteristics of isolates producing mild or moderate symptoms. Biological comparison of isolates from Mississippi confirmed predictions from molecular data. Plant species were tested for susceptibility to BPMV. Seven of 52 species tested positive. Desmodium perplexum was infected by beetle feeding and served as an inoculum source for transmission of BPMV to soybeans. Beetle species collected from soybean and clover were tested to determine if they serve as BPMV vectors. Of eight species tested, Hypera postica transmitted BPMV to 1 of 14 test plants. Beetle overwintering transmission of BPMV was tested, but of 187 beetles collected, none transmitted the virus

    Diversity And Ecology Of Bean Pod Mottle Virus In Mississippi

    Get PDF
    Sequences of 33 Bean pod mottle virus (BPMV) isolates collected from Mississippi were obtained from four regions of the viral genome. Sequences were compared mutually and to subgroups I and II type isolates. Mississippi isolates collected have greater similarity to subgroup II. Helicase sequences obtained from Mississippi isolates showed characteristics of isolates producing mild or moderate symptoms. Biological comparison of isolates from Mississippi confirmed predictions from molecular data. Plant species were tested for susceptibility to BPMV. Seven of 52 species tested positive. Desmodium perplexum was infected by beetle feeding and served as an inoculum source for transmission of BPMV to soybeans. Beetle species collected from soybean and clover were tested to determine if they serve as BPMV vectors. Of eight species tested, Hypera postica transmitted BPMV to 1 of 14 test plants. Beetle overwintering transmission of BPMV was tested, but of 187 beetles collected, none transmitted the virus

    Similarity of Prosody Between Speech and Singing: A Methodological Study

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    Background: People with neurogenic communication disorders such as Parkinson’s Disease and Aphasia have language and speech abilities that are characterized by disturbances in speech prosody: abnormal variations of the intonation, stress, and duration of speech. Singing has been used as a therapeutic approach to help regulate and normalize prosody; however, little is known about how to best use the prosody of singing to meet the speech needs of different neuro pathologies. Objectives: The purpose of this study was to identify how the spoken and musical prosody of simple songs compare on measures of intensity, intonation, and duration as well as establish a method of assessing a song’s efficacy in speech therapy. Methods: An observational study compared the recordings of two singers and two speakers (4 participants total) who sang or read aloud the lyrics of three simple songs: “Row, Row, Row Your Boat”, “Happy Birthday To You”, and “Twinkle, Twinkle Little Star”. Participants were asked to either sing or read aloud each selection three times. Analysis: The acoustic analyses of the recordings were performed using the software Praat and were assessed for the prosodic measures of intonation by the fundamental frequency contour (semitones), intensity by the decibel (dB) contour, and rhythm by syllabic duration (seconds). Results: Comparing the prosodic differences between sung and spoken lyrics, on average the highest similarity between speech and singing occurred for the measure of duration (SCP Row = 92%, SCP Twinkle = 85%, SCP Happy = 83)%, second highest similarity for intensity (SCP Row =65%, SCP Twinkle =56%, SCP Happy =54% ), and the least highest similarity of intonation (SCP Row = 69%, SCP Twinkle = 49% , SCP Happy = 42%). Out of the selections Row, Row, Row Your Boat was most speech like while Happy Birthday to you was least speech like. Conclusions: This methodological study for speech and singing helped to establish a basis for assessing how simple songs can be utilized as a tool in speech therapy

    Longitudinal patterns of antidepressant prescribing in primary care in the UK: comparison with treatment guidelines

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    The objective of this study was to determine whether patients beginning therapy on the most common tricyclic antidepressants (TCAs) and selective serotonin reuptake inhibitors (SSRIs) differed in their likelihood of having antidepressant treatment that was consistent with recommended treatment guidelines in the UK. An analytical file constructed from a large general practitioner medical records database (DIN-LINK) from the UK for the years 1992-97 was constructed. A total of 16 204 patients with a new episode of antidepressant therapy who initiated therapy on one of the most often prescribed TCAs (amitriptyline, dothiepin, imipramine and lofepramine) or SSRIs (fluoxetine, paroxetine and sertraline) were analysed. A dichotomous measure was defined to indicate whether subjects were prescribed at least 120 days of antidepressant therapy at an adequate average daily dose within the first 6 months after initiation of therapy. Only 6.0% of patients initiating therapy on aTCA and 32.9% of patients initiating therapy on a SSRI were prescribed antidepressant treatment that was consistent with treatment guidelines. After controlling for observable characteristics, patients who initiated therapy on a SSRI were much more likely (odds ratio=7.473, p<0.001) to have a prescribed average daily dose and duration consistent with recommended treatment guidelines within the first 6 months of initiating therapy than were patients who initiated therapy on a TCA. These findings suggest that initial antidepressant selection is an important determinant of whether the subsequent course of treatment is consistent with current national guidelines for the treatment of depression in the UK.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/68732/2/10.1177_026988119901300204.pd

    Influence of Soybean Maturity Group and Row Width on Bean Leaf Beetle (Coleoptera: Chrysomelidae) and Bean Pod Mottle Disease in an Early Season Production System

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    ABSTRACT The influence of narrow and wide-row soybeans on infestations of bean leaf beetle (BLB), Cerotoma trifurcata (Forster) (Coleoptera: Chrysomelidae) adults, a vector of bean pod mottle virus (BPMV), and associated incidence of bean pod mottle (BPM) disease were investigated in maturity groups IV and V soybeans in Mississippi. Maturity group IV soybeans had greater cumulative BLB numbers and greater incidence of BPM than maturity grou
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