RESUMO
AIM: To measure the association of leader-member exchange and team-member exchange with nurses' innovative behaviours through social exchange theory. BACKGROUND: The field of nursing is actively advocating innovation. Other fields have proven that leader-member exchange and team-member exchange can promote innovative behaviour, but such an association is not clear in nursing. DESIGN: A cross-sectional study. METHODS: A total of 560 nurses were selected from five tertiary hospitals in Henan Province (China) by multistage sampling. Data were collected from a self-report questionnaire. Thirty nurses in the pre-survey were used to verify the validity of the questionnaire. SPSS PROCESS macro was used to verify the association of leader-member exchange and team-member exchange with nurses' innovative behaviours. RESULTS: Leader-member exchange and team-member exchange were significantly associated with nurses' innovative behaviours, and team-member exchange had a mediating effect on the relationship between leader-member exchange and innovative behaviour. CONCLUSIONS: Leader-member exchange and team-member exchange positively affect nurses' innovative behaviours. Leader-member exchange can promote nurses' innovative behaviours through the mediating role of team-member exchange. IMPACT: This study indicated that leader-member exchange and team-member exchange should be given more attention in promoting nurses' innovative behaviours. This finding has implications for the promotion of innovative behaviours in nurses. Leaders need to focus on the innovative needs of nurses and offer support. Meanwhile, leadership training programs are necessary for managers to create positive team relationships. PATIENT OR PUBLIC CONTRIBUTION: No patient or public involvement.
Assuntos
Liderança , Recursos Humanos de Enfermagem Hospitalar , Humanos , Estudos Transversais , Adulto , Feminino , Masculino , China , Inquéritos e Questionários , Recursos Humanos de Enfermagem Hospitalar/psicologia , Relações Interprofissionais , Pessoa de Meia-Idade , Atitude do Pessoal de SaúdeRESUMO
A novel Streptomyces strain, L10, which is capable of producing natamycin, was isolated from a soil sample collected from Zhejiang province, China. On the basis of phylogenetic analysis of rpoB gene and 16S rDNA sequences, as well as phenotypic comparison, strain L10 (CGMCC 2644) is proposed to be a previously uncharacterized strain of S. chattanoogensis. By screening a cosmid library of strain L10 and primer walking, a partial sequence of scnRI and the entire sequence of scnRII were obtained, which are orthologues to the pathway-specific positive regulator genes of natamycin biosynthesis in S. natalensis. The engineered S. chattanoogensis Dl, generated by inserting an additional copy of scnRII into the chromosome of strain L10, increased its natamycin production by 3.3 fold in YSG medium and 4.6 fold in YEME medium without sucrose.
Assuntos
Antibacterianos/biossíntese , Proteínas de Bactérias/metabolismo , Genes Reguladores , Natamicina/biossíntese , Streptomyces/isolamento & purificação , Streptomyces/metabolismo , Sequência de Aminoácidos , Proteínas de Bactérias/química , Proteínas de Bactérias/genética , China , Clonagem Molecular , DNA Bacteriano/genética , DNA Ribossômico/genética , Regulação Bacteriana da Expressão Gênica , Dados de Sequência Molecular , Filogenia , RNA Ribossômico 16S/genética , Alinhamento de Sequência , Microbiologia do Solo , Streptomyces/classificação , Streptomyces/genéticaRESUMO
SigT is an ECF sigma factor in Streptomyces coelicolor. sigT and its putative anti-sigma factor gene rstA are located in one putative operon, and SigT could physically interact with RstA. Deletion of sigT or rstA caused accelerated morphological development and enhanced production of antibiotics, concomitant with over-expression of chpE, chpH, actII-orf4 and redD. Furthermore, SigT was undetectable after loss of rstA. These data suggested that SigT has a negative role on differentiation and that RstA negatively regulates the SigT activity through a putative antagonistic mechanism and at the post-transcriptional level.