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Scholarly Works (5 results)

  • Article
  • Peer Reviewed
UC Riverside Previously Published Works (2013)
Ten first grade students who had responded poorly to a Tier 2 reading intervention in a response to intervention (RTI) model received an intervention of video self-modeling to improve decoding skills and sight word recognition. Students were video recorded blending and segmenting decodable words and reading sight words. Videos were edited and viewed a minimum of four times per week. Data were collected twice per week using curriculum-based measures. A single subject multiple baseline across participants design was used. Results indicated an increase in decoding skills and sight word recognition for all participants. A 2-week posttest maintenance assessment showed retention or increases for 70 percent of participants. Results from the study offer promise for a specific intervention that may reach particular students who respond poorly to Tier 2 reading instruction. © 2013 The Division for Learning Disabilities of the Council for Exceptional Children.
    Cover page: The Effects of Video Self‐Modeling on the Decoding Skills of Children at Risk for Reading Disabilities
    • Thesis
    • Peer Reviewed
    UC Riverside Electronic Theses and Dissertations (2010)

    Ten first grade students, participating in a Tier II response to intervention (RTI) reading program received an intervention of video self modeling to improve decoding skills and sight word recognition. The students were video recorded blending and segmenting decodable words, and reading sight words taken directly from their curriculum instruction. Individual videos were recorded and edited to show students successfully and accurately decoding words and practicing sight word recognition. Each movie was two minutes or less and included 5 decoding segments and 5 new sight words. Decodable words were selected for each student based upon identified decoding deficits assessed weekly. Sight words were selected based upon the upcoming set of words in each student's RTI instruction lesson. Viewing of the video self-modeling movies occurred 4 times per week prior to RTI instruction. Data were collected twice per week using curriculum-based measures that included decodable and sight words printed in black and white on index cards and the Dibels Nonsense Word Fluency (NWF) assessment. A single subject multiple baseline across participants design was used. Pre-and post-test measures included the Fountas and Pinnell Benchmark Assessment, the Basic Phonics Skills Test, the Systematic Instruction in Phoneme Awareness, Phonics, and Sight Words Assessment and the standardized Woodcock-Johnson III subtests: Word Attack and Letter Word Identification. Results indicated an increase in decoding skills and sight word recognition for all participants. A two-week post-test maintenance assessment showed that 70% of the participants retained their highest decoding and sight word recognition skill levels or further increased their scores. The remaining 30% scored lower than their highest score but still remained above baseline. All 10 students improved their NWF scores from baseline to maintenance indicating a generalization of skills. Treatment integrity and inter-observer reliability were established with an equal rating of 98%. Social validity was recorded on video through an interview process that addressed both student and teacher feelings about the use of video self-modeling to improve reading skills and reading in general. Results from the study offer promise of an early response, specific intervention that may reach particular students who struggle with Tier II reading instruction.

      Cover page: The Effects of Video Self-Modeling on the Decoding Skills of Children At Risk for Reading Disabilities
      • Article
      • Peer Reviewed
      UCLA Previously Published Works (2021)

      Background

      The coronavirus disease 2019 (COVID-19) pandemic has adversely affected diagnosis and treatment of noncommunicable diseases. Its effects on delivery of diagnostic care for cardiovascular disease, which remains the leading cause of death worldwide, have not been quantified.

      Objectives

      The study sought to assess COVID-19's impact on global cardiovascular diagnostic procedural volumes and safety practices.

      Methods

      The International Atomic Energy Agency conducted a worldwide survey assessing alterations in cardiovascular procedure volumes and safety practices resulting from COVID-19. Noninvasive and invasive cardiac testing volumes were obtained from participating sites for March and April 2020 and compared with those from March 2019. Availability of personal protective equipment and pandemic-related testing practice changes were ascertained.

      Results

      Surveys were submitted from 909 inpatient and outpatient centers performing cardiac diagnostic procedures, in 108 countries. Procedure volumes decreased 42% from March 2019 to March 2020, and 64% from March 2019 to April 2020. Transthoracic echocardiography decreased by 59%, transesophageal echocardiography 76%, and stress tests 78%, which varied between stress modalities. Coronary angiography (invasive or computed tomography) decreased 55% (p < 0.001 for each procedure). In multivariable regression, significantly greater reduction in procedures occurred for centers in countries with lower gross domestic product. Location in a low-income and lower-middle-income country was associated with an additional 22% reduction in cardiac procedures and less availability of personal protective equipment and telehealth.

      Conclusions

      COVID-19 was associated with a significant and abrupt reduction in cardiovascular diagnostic testing across the globe, especially affecting the world's economically challenged. Further study of cardiovascular outcomes and COVID-19-related changes in care delivery is warranted.
        Cover page: International Impact of COVID-19 on the Diagnosis of Heart Disease
        • Article
        • Peer Reviewed
        UCLA Previously Published Works (2021)

        Objectives

        This study sought to quantify and compare the decline in volumes of cardiovascular procedures between the United States and non-U.S. institutions during the early phase of the coronavirus disease-2019 (COVID-19) pandemic.

        Background

        The COVID-19 pandemic has disrupted the care of many non-COVID-19 illnesses. Reductions in diagnostic cardiovascular testing around the world have led to concerns over the implications of reduced testing for cardiovascular disease (CVD) morbidity and mortality.

        Methods

        Data were submitted to the INCAPS-COVID (International Atomic Energy Agency Non-Invasive Cardiology Protocols Study of COVID-19), a multinational registry comprising 909 institutions in 108 countries (including 155 facilities in 40 U.S. states), assessing the impact of the COVID-19 pandemic on volumes of diagnostic cardiovascular procedures. Data were obtained for April 2020 and compared with volumes of baseline procedures from March 2019. We compared laboratory characteristics, practices, and procedure volumes between U.S. and non-U.S. facilities and between U.S. geographic regions and identified factors associated with volume reduction in the United States.

        Results

        Reductions in the volumes of procedures in the United States were similar to those in non-U.S. facilities (68% vs. 63%, respectively; p = 0.237), although U.S. facilities reported greater reductions in invasive coronary angiography (69% vs. 53%, respectively; p < 0.001). Significantly more U.S. facilities reported increased use of telehealth and patient screening measures than non-U.S. facilities, such as temperature checks, symptom screenings, and COVID-19 testing. Reductions in volumes of procedures differed between U.S. regions, with larger declines observed in the Northeast (76%) and Midwest (74%) than in the South (62%) and West (44%). Prevalence of COVID-19, staff redeployments, outpatient centers, and urban centers were associated with greater reductions in volume in U.S. facilities in a multivariable analysis.

        Conclusions

        We observed marked reductions in U.S. cardiovascular testing in the early phase of the pandemic and significant variability between U.S. regions. The association between reductions of volumes and COVID-19 prevalence in the United States highlighted the need for proactive efforts to maintain access to cardiovascular testing in areas most affected by outbreaks of COVID-19 infection.
          Cover page: Impact of COVID-19 on Cardiovascular Testing in the United States Versus the Rest of the World
          • Article
          • Peer Reviewed
          UCLA Previously Published Works (2021)

          Background

          The coronavirus disease-2019 (COVID-19) pandemic significantly affected management of cardiovascular disease around the world. The effect of the pandemic on volume of cardiovascular diagnostic procedures is not known.

          Objectives

          This study sought to evaluate the effects of the early phase of the COVID-19 pandemic on cardiovascular diagnostic procedures and safety practices in Asia.

          Methods

          The International Atomic Energy Agency conducted a worldwide survey to assess changes in cardiovascular procedure volume and safety practices caused by COVID-19. Testing volumes were reported for March 2020 and April 2020 and were compared to those from March 2019. Data from 180 centers across 33 Asian countries were grouped into 4 subregions for comparison.

          Results

          Procedure volumes decreased by 47% from March 2019 to March 2020, showing recovery from March 2020 to April 2020 in Eastern Asia, particularly in China. The majority of centers cancelled outpatient activities and increased time per study. Practice changes included implementing physical distancing and restricting visitors. Although COVID testing was not commonly performed, it was conducted in one-third of facilities in Eastern Asia. The most severe reductions in procedure volumes were observed in lower-income countries, where volumes decreased 81% from March 2019 to April 2020.

          Conclusions

          The COVID-19 pandemic in Asia caused significant reductions in cardiovascular diagnostic procedures, particularly in low-income countries. Further studies on effects of COVID-19 on cardiovascular outcomes and changes in care delivery are warranted.
            Cover page: Impact of COVID-19 Pandemic on Cardiovascular Testing in Asia The IAEA INCAPS-COVID Study
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