Institution
Oklahoma State University–Stillwater
Education•Stillwater, Oklahoma, United States•
About: Oklahoma State University–Stillwater is a education organization based out in Stillwater, Oklahoma, United States. It is known for research contribution in the topics: Population & Large Hadron Collider. The organization has 18267 authors who have published 36743 publications receiving 1107500 citations. The organization is also known as: Oklahoma State University & OKState.
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TL;DR: It is suggested that JH642, a strain which is not a producer of surfactin (genotypically sfp0), contains at least some of the genes encoding surfactIn production, and the sfp locus alters the transcriptional regulation of srf inJH642 cells.
Abstract: Surfactin is a lipopeptide antibiotic produced by the cells of Bacillus subtilis ATCC 21332. A genetic locus responsible for surfactin production (sfp) was transferred from ATCC 21332 to JH642, a derivative of the standard B. subtilis 168. To study the sfp locus at the molecular level, a Tn917 insertion mutant that was blocked in surfactin production (srf) was isolated. The srf::Tn917 mutation was found to be closely linked to sfp, and both loci mapped by PBS1 phage transduction to the chromosomal region between aroI and mtlB. These studies suggest that JH642, a strain which is not a producer of surfactin (genotypically sfp0), contains at least some of the genes encoding surfactin production. Expression of the srf gene(s) was examined in both sfp and sfp0 cells by assaying beta-galactosidase activity encoded by a promoterless lacZ gene that was fused to the srf::Tn917 insertion. In cells of both strains, srf-directed beta-galactosidase activity increased when cells entered the stationary phase of the growth curve, but the activity in sfp cells was higher than that in sfp0 cells. srf-lacZ expression was partially impaired by a mutation in spo0A. In sfp0 cells, this dependence on the spo0A gene product could be entirely bypassed by an abrB suppressor mutation. In the sfp cells, the abrB mutation could not restore the defect conferred by the spo0A mutation. These data suggest that the sfp locus, which is responsible for surfactin production, alters the transcriptional regulation of srf in JH642 cells.
312 citations
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TL;DR: A global attainment analysis of the feasibility of attaining SDG targets on the basis of past trends and a estimates of health-related SDG index values in countries assessed at the subnational level varied substantially, particularly in China and India, although scores in Japan and the UK were more homogeneous.
312 citations
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TL;DR: In this article, a meta-analytic review summarized data from over 2,300 clients across 26 studies comparing the treatment outcome differences between clients matched to a preferred treatment and clients not matched to the preferred treatment.
Abstract: An important part of evidence-based practice is to include client preferences in the treatment decision-making process. However, based on previous reviews of the literature there is some question as to whether including client preferences actually has an effect on treatment outcome. This meta-analytic review summarized data from over 2,300 clients across 26 studies comparing the treatment outcome differences between clients matched to a preferred treatment and clients not matched to a preferred treatment. The findings indicate a small significant effect (r=.15, CI(.95): .09 to .21) in favor of clients who received a preferred treatment. The binomial effect size indicated that matched clients have a 58% chance of showing greater improvement, and further analysis indicate that they are about half as likely to drop-out of treatment when compared with clients not receiving a preferred treatment. Study design was seen to be a moderating variable in that partially randomized preference trials may underestimate the treatment preference effect. Implications for best practice standards are discussed.
312 citations
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TL;DR: The authors examined the relationship among elements of relationship management activities (predictors), relationship quality (a mediating construct), and relationship outcomes (commitment, loyalty, and word of mouth).
Abstract: This study examines the relationships among elements of relationship management activities (predictors), relationship quality (a mediating construct), and relationship outcomes (commitment, loyalty, and word of mouth). Despite much research focusing on relationship quality, some central questions concerning the relationship among the three constructs have not been fully explored. A conceptual model was developed and tested to examine the mediating effect of relationship quality on the relationship between the seven relationship management activities and the three relationship outcomes. Structural equation analyses on the data collected from a survey of 887 dinner patrons at 21 luxury restaurants show that relationship quality is the primary mediating construct between relationship management activities and relationship outcomes. The effective use of a relationship management strategy may increase customer commitment, spread positive word of mouth, and generate loyalty. The findings of this study provide r...
312 citations
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TL;DR: In this paper, the authors investigate whether demographic and behavioral characteristics differ significantly among groups of online virtual community members; identify factors that affect the community members' loyalty; and determine if the loyalty to an online virtual communities would lead members to purchase products.
311 citations
Authors
Showing all 18403 results
Name | H-index | Papers | Citations |
---|---|---|---|
Gerald I. Shulman | 164 | 579 | 109520 |
James M. Tiedje | 150 | 688 | 102287 |
Robert J. Sternberg | 149 | 1066 | 89193 |
Josh Moss | 139 | 1019 | 89255 |
Brad Abbott | 137 | 1566 | 98604 |
Itsuo Nakano | 135 | 1539 | 97905 |
Luis M. Liz-Marzán | 132 | 616 | 61684 |
Flera Rizatdinova | 130 | 1242 | 89525 |
Bernd Stelzer | 129 | 1209 | 81931 |
Alexander Khanov | 129 | 1219 | 87089 |
Dugan O'Neil | 128 | 1000 | 80700 |
Michel Vetterli | 128 | 901 | 76064 |
Josu Cantero | 126 | 846 | 73616 |
Nicholas A. Kotov | 123 | 574 | 55210 |
Wei Chen | 122 | 1946 | 89460 |