San Diego State University

About: San Diego State University is a education organization based out in San Diego, California, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 12418 authors who have published 27950 publications receiving 1192375 citations. The organization is also known as: SDSU & San Diego State College.

Molecular Cloning and Characterization of a Brassinosteroid-Regulated Gene from Elongating Soybean (Glycine max L.) Epicotyls

Abstract: Brassinosteroids promote elongation and regulate gene expression in soybean (Glycine max L.) stems. We constructed a cDNA library from brassinosteroid-treated soybean epicotyls and used differential hybridization to isolate a cDNA (pBRU1) corresponding to a transcript whose abundance is increased by brassinosteroid treatment. Sequence analysis of pBRU1 revealed an open reading frame of 283 amino acids with a putative signal peptide of 29 amino acids. The sequence had extensive homology (77% identity, 89% similarity) over 114 contiguous amino acids to the meri-5 gene of Arabidopsis thaliana (J.I. Medford, J.S. Elmer, H.J. Klee [1991] Plant Cell 3: 359-370), and significant homology (48% identity, 62% similarity) to a xyloglucan endotransglycosylase localized in the cell walls of nasturtium (J. de Silva, C.D. Jarman, D.A. Arrowsmith, M.S. Stronach, S. Chengappa, C. Sidebottom, J.S. Reid [1993] Plant J 3: 701-711). RNase protection studies showed that BRU1 transcript levels are not increased by 1.0 microM auxins, cytokinins, abscisic acid, or gibberellic acid and that BRU1 expression is highest in stem tissue. Findings from studies with run-on transcripts from isolated soybean nuclei most likely indicate that the regulation of BRU1 by brassinosteroids is largely posttranscriptional. The elevated levels of BRU1 transcripts in elongating tissue and the homology with a xyloglucan endotransglycosylase suggest a possible role for the BRU1 protein in brassinosteroid-stimulated elongation.

The development of self-administered physical activity surveys for 4th grade students.

Abstract: This study evaluates the test-retest reliability and validity of self-report measures of physical activity that can be self-administered in classroom settings to 4th grade students. Four different self-report formats were tested on 66 students. To assess test-retest reliabilities, self-report measures were administered on two occasions, separated by a 3-day interval between Time 1 (Friday) and Time 2 (Monday). One-way model intraclass reliabilities ranged from .51 to .74. Three days of monitoring with the Caltrac accelerometer were used as the validity criterion. Only one of the three-weekly recalls, the Weekly Activity Checklist, was supported by significant validity correlations at both Time 1 (r = .34, p < .01) and Time 2 (r = .26, p < .05). The 1-day recall, Yesterday Activity Checklist, correlated significantly (r = .33, p < .01) with the previous day's Caltrac monitor score. Although two of the physical activity recall formats were found to be superior to two others, these data highlight th...

The Effect of Telephone-Administered Psychotherapy on Symptoms of Depression and Attrition: A Meta-Analysis

Abstract: Increasingly, the telephone is being used to deliver psychotherapy for depression, in part as a means to reduce barriers to treatment. Twelve trials of telephone-administered psychotherapies, in which depressive symptoms were assessed, were included. There was a significant reduction in depressive symptoms for patients enrolled in telephone-administered psychotherapy as compared to control conditions (d = 0.26, 95% confidence interval [CI] = 0.14-0.39, p < .0001). There was also a significant reduction in depressive symptoms in analyses of pretreatment to posttreatment change (d = 0.81, 95% CI = 0.50-1.13, p < .0001). The mean attrition rate was 7.56% (95% CI = 4.23-10.90). These findings suggest that telephone-administered psychotherapy can produce significant reductions in depressive symptoms. Attrition rates were considerably lower than rates reported in face-to-face psychotherapy.