Economic Replacement of a Heterogeneous Herd
In: American Journal of Agricultural Economics, Volume 89, Issue 1, p. 24-35
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In: American Journal of Agricultural Economics, Volume 89, Issue 1, p. 24-35
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In: BITE-D-21-06798
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In: BITE-D-21-08561
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In: JCIT-D-22-00220
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In: BITE-D-22-06910
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In: Human relations: towards the integration of the social sciences, Volume 75, Issue 11, p. 2011-2038
ISSN: 1573-9716, 1741-282X
Narcissism is widely considered to be a trait that is commonly found in leaders, but also a characteristic that is frequently a source of problems for their organizations. However, there is accumulating consensus in the organizational literature that, rather than a necessary evil, narcissism can potentially be a mixed blessing for leaders. The present study sets out to reconcile the paradoxical effects of leader narcissism by exploring when and how leader narcissism hampers or helps follower job performance. Utilizing a social cognitive approach to leadership and drawing upon the inferential model of leadership perceptions, we propose that leader effectiveness can shape followers' dual collective leadership perceptions in response to leader narcissism and that these shared perceptions in turn influence follower job performance in opposing manners. The results of multi-wave, multi-source, and multilevel data showed that when leader narcissism was accompanied by low levels of leader effectiveness, followers collectively tended to perceive their leaders as being more narcissistic. However, when leader narcissism was accompanied by high levels of leader effectiveness, followers collectively tended to perceive their leaders as more charismatic. Followers' dual collective leadership perceptions then mediated the joint effects of leader narcissism and leader effectiveness on follower job performance.
In: Materials and design, Volume 92, p. 129-134
ISSN: 1873-4197
In: American Journal of Agricultural Economics, Volume 92, Issue 1, p. 56-69
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In: Reproductive sciences: RS : the official journal of the Society for Reproductive Investigation
ISSN: 1933-7205
AbstractEndometrial cancer is a malignant tumor that commonly occurs in the female reproductive system and its incidence is still increasing. The mechanism of the development of endometrial cancer has not yet been fully clarified, so we need to continuously study the relevant mechanisms of endometrial cancer and continue to explore its biomarkers in order to discover more precise and effective treatment methods for endometrial cancer. RT-qPCR (Real-Time quantitative Polymerase Chain Reaction) experiments were used to detect the expression level of MMP23B (Matrix Metalloproteinase 23B) in endometrial cancer cells; the clinical data of the TCGA (The Cancer Genome Atlas) database were downloaded, and gene expression profiles were analyzed to investigate the correlation between MMP23B (Matrix Metalloproteinase 23B) and the survival prognosis of endometrial cancer, and functional enrichment analysis was performed on MMP23B (Matrix Metalloproteinase 23B) related genes. After silencing MMP23B (Matrix Metalloproteinase 23B), CCK8 (Cell Counting Kit-8), RT-qPCR (Real-Time quantitative Polymerase Chain Reaction), scratch assay, and transwell assay were used to detect cell viability, levels of apoptotic factors, migration rate, and invasion number of endometrial cancer, respectively. MMP23B (Matrix Metalloproteinase 23B) was highly expressed in endometrial cancer, which is closely related to a poor survival prognosis for endometrial cancer, and may act on endometrial cancer through apoptosis-related functions. The downregulation of MMP23B (Matrix Metalloproteinase 23B) reduced the cell viability of endometrial cancer cells, upregulated the expression levels of CASP3 (Caspase-3), CASP8 (Caspase-8) and CASP9 (Caspase-9) in cells, and inhibited cell migration and invasion.
In: Waste management: international journal of integrated waste management, science and technology, Volume 177, p. 232-242
ISSN: 1879-2456
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In: Materials and design, Volume 225, p. 111524
ISSN: 1873-4197
In: Materials and design, Volume 223, p. 111202
ISSN: 1873-4197
In: Environmental science and pollution research: ESPR, Volume 29, Issue 50, p. 76192-76201
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Volume 29, Issue 37, p. 55916-55927
ISSN: 1614-7499