61 research outputs found

    PERCEIVED CAREER MOBILITY, JOB SATISFACTION, AND ORGANIZATIONAL TURNOVER INTENTIONS AMONG SENIOR ADMINISTRATORS AT NCAA DIVISION I FBS INSTITUTIONS AS A FUNCTION OF GENDER AND ETHNICITY

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    Business management scholars have examined aspects of organizational turnover for many years. There is general acknowledgement that the turnover process is complex and that most models leave significant variance unexplained. Additionally, scholars within the business management sector have stated that demographic variables (e.g., gender, race) have negative effects on turnover decisions. Within the sport industry, turnover research has been conducted only over the last 15 years; however, researchers have focused on the role of athletic coaches. Therefore, the first purpose of this study was to collect descriptive data to describe the demographic, professional, and educational characteristics of senior-level administrators within NCAA Division I FBS institutions. The second purpose was to examine the relationship among organizational outcomes (i.e., perceived career mobility [PCM], job satisfaction [JS] levels, and organizational turnover intentions [TO]) as a function of gender and ethnicity. This study offers a different perspective, that of senior-level athletic administrators. A quantitative survey was sent electronically to 1,231 senior-level athletic administrators across all 130 NCAA Division I FBS institutions. The survey contained four sections: (a) demographic information, (b) perceived career mobility scale, (c) job satisfaction, and (d) organizational turnover intentions. A total of 213 (17%) administrators responded. Demographic, educational, and professional profile characteristics are provided for NCAA Divisions I FBS senior-level athletic administrators. Furthermore, work-related outcome variables were examined as a function of gender and ethnicity, but no differences were reported. Additionally, gender and ethnicity interaction and main effects were examined with each work-related variable; however, no differences were discovered. Lastly, all variables (i.e., gender, ethnicity, PCM, and JS) were examined to determine if and to what extent each variable predicted TO. The findings indicated that the model was a good predictor of TO; moreover, JS explained the greatest degree of variance (i.e., 29%). Although findings did not reveal ethnic or gender differences, sport management scholars need to continue to expand the diversity-related research examining organizational outcomes within the athletic administration setting. Implications of the study are discussed in the context of curriculum design for program developers, future administrators hoping to work within intercollegiate athletics, and existing administrators working within the field

    Role of Doctoral Studies on the Relationships Between Select Doctoral Students and Their Partners: A Collective Case Study

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    Students who enter post-baccalaureate studies face numerable challenges during their tenure in graduate school. Although researchers have studied these inherent challenges, a gap exists in the literature concerning doctoral students and the impact of their studies on their personal relationships. As such, the purpose of this collective case study was to examine the effect that doctoral studies have on the relationships between select doctoral students and their partners. Semi-structured interviews of six participants, selected via convenience sampling (i.e., current doctoral students who have been in relationships during their doctoral studies), generated data concerning challenges, coping mechanisms, personal emotions, and relationship concerns. These findings provided a composite understanding of the potential inherent struggles of doctoral students and the corresponding role that their doctoral studies have on the relationships of these specific doctoral students and their partners that matched much of the findings noted in the literature. It is the researchers’ hope that the results will help guide future researchers but urge caution concerning the generalizability of the information gained from this study due to its small sample size

    Collaboration Patterns as a Function of Research Experience Among Mixed Researchers: A Mixed Methods Bibliometric Study

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    Onwuegbuzie et al. (2018) documented that the degree of collaboration is higher for mixed researchers than for qualitative and quantitative researchers. The present investigation examined the (a) link between the research experience of lead authors and their propensity to collaborate (Quantitative Phase), and (b) role of research experience in collaborative mixed research studies (Qualitative Phase). Analyses of articles published in the Journal of Mixed Methods Research from 2007 (its inception) to the third issue in 2018 (time of data collection) revealed that the average research experience of lead authors decreased from 20.29 in 2007 to 14.24 in 2017 (last complete year), representing a significant reduction of 29.8%. No statistically significant relationship emerged between degree of collaboration and research experience. The qualitative phase yielded 3 themes and 9 subthemes that identified several differences and similarities between the desire for collaboration and research experience. In particular, for the least-experienced mixed methods researchers, collaboration might be associated with negative emotions (e.g., frustration, stress, anxiety) and this coupled with the lack of perceived weaknesses reported by the most-experienced sub-participants, suggest that years of experience have an impact on their affective state during the conduct of collaborative mixed methods research studies. Implications of these findings are discussed

    Attitudes of pregnant women and healthcare professionals towards clinical trials and routine implementation of antenatal vaccination against respiratory syncytial virus : a multicenter questionnaire study

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    Introduction: Respiratory syncytial virus (RSV) is a common cause of infant hospitalization and mortality. With multiple vaccines in development, we aimed to determine: (1) the awareness of RSV among pregnant women and healthcare professionals (HCPs), and (2) attitudes toward clinical trials and routine implementation of antenatal RSV vaccination.Methods: Separate questionnaires for pregnant women and HCPs were distributed within 4 hospitals in South England (July 2017–January 2018).Results: Responses from 314 pregnant women and 204 HCPs (18% obstetricians, 75% midwives, 7% unknown) were analyzed. Most pregnant women (88%) and midwives (66%) had no/very little awareness of RSV, unlike obstetricians (14%). Among pregnant women, 29% and 75% would likely accept RSV vaccination as part of a trial, or if routinely recommended, respectively. Younger women (16–24 years), those of 21–30 weeks’ gestation, and with experience of RSV were significantly more likely to participate in trials [odds ratio (OR): 1.42 (1.72–9.86); OR: 2.29 (1.22–4.31); OR: 9.07 (1.62–50.86), respectively]. White-British women and those of 21–30 weeks’ gestation were more likely to accept routinely recommended vaccination [OR: 2.16 (1.07–4.13); OR: 2.10 (1.07–4.13)]. Obstetricians were more likely than midwives to support clinical trials [92% vs. 68%, OR: 2.50 (1.01–6.16)] and routine RSV vaccination [89% vs. 79%, OR: 4.08 (1.53–9.81)], as were those with prior knowledge of RSV, and who deemed it serious.Conclusions: RSV awareness is low among pregnant women and midwives. Education will be required to support successful implementation of routine antenatal vaccination. Research is needed to understand reasons for vaccine hesitancy among pregnant women and HCPs, particularly midwives.<br/

    Collaboration patterns as a function of article genre among mixed researchers: a mixed methods bibliometric study.

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    Surprisingly, scant information exists regarding the collaboration patterns of mixed methods researchers. Thus, the purpose of this mixed methods bibliometric study was to examine (a) the distribution of the number of co-authors in articles published in the flagship mixed methods research journal (i.e., "Journal of Mixed Methods Research" ["JMMR"]) as a function of article genre (Quantitative Phase); (b) the relationship between the genre of articles published in "JMMR" and degree of collaboration in these articles (Quantitative Phase); (c) the difference between the number of authors in empirical research articles and non-empirical research articles published in "JMMR" (Quantitative Phase); and (d) select leading mixed methods researchers' collaboration experiences as a function of genre of article (Qualitative Phase). An analysis of all articles published in "JMMR" from 2007 (its inception) to 2015 (the latest complete year at the time that the study was conducted) revealed (a) a statistically significantly higher proportion of empirical research articles (63.2%) than non-empirical research articles (36.8%), (b) that empirical research articles were 1.4 times (95% confidence interval = 1.10, 1.78) more likely to involve multiple authors than were non-empirical research articles; and (c) that empirical research articles contained statistically significantly more authors than did non-empirical research articles. With respect to the qualitative phase, four themes (i.e., mental perception, mixed methods research, publication and research aids, and independent/group work) emerged regarding collaboration for empirical articles versus for non-empirical research articles. Implications of these findings are discussed

    Allele-Specific HLA Loss and Immune Escape in Lung Cancer Evolution

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    Immune evasion is a hallmark of cancer. Losing the ability to present neoantigens through human leukocyte antigen (HLA) loss may facilitate immune evasion. However, the polymorphic nature of the locus has precluded accurate HLA copy-number analysis. Here, we present loss of heterozygosity in human leukocyte antigen (LOHHLA), a computational tool to determine HLA allele-specific copy number from sequencing data. Using LOHHLA, we find that HLA LOH occurs in 40% of non-small-cell lung cancers (NSCLCs) and is associated with a high subclonal neoantigen burden, APOBEC-mediated mutagenesis, upregulation of cytolytic activity, and PD-L1 positivity. The focal nature of HLA LOH alterations, their subclonal frequencies, enrichment in metastatic sites, and occurrence as parallel events suggests that HLA LOH is an immune escape mechanism that is subject to strong microenvironmental selection pressures later in tumor evolution. Characterizing HLA LOH with LOHHLA refines neoantigen prediction and may have implications for our understanding of resistance mechanisms and immunotherapeutic approaches targeting neoantigens. Video Abstract [Figure presented] Development of the bioinformatics tool LOHHLA allows precise measurement of allele-specific HLA copy number, improves the accuracy in neoantigen prediction, and uncovers insights into how immune escape contributes to tumor evolution in non-small-cell lung cancer

    Fc-Optimized Anti-CD25 Depletes Tumor-Infiltrating Regulatory T Cells and Synergizes with PD-1 Blockade to Eradicate Established Tumors

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    CD25 is expressed at high levels on regulatory T (Treg) cells and was initially proposed as a target for cancer immunotherapy. However, anti-CD25 antibodies have displayed limited activity against established tumors. We demonstrated that CD25 expression is largely restricted to tumor-infiltrating Treg cells in mice and humans. While existing anti-CD25 antibodies were observed to deplete Treg cells in the periphery, upregulation of the inhibitory Fc gamma receptor (FcγR) IIb at the tumor site prevented intra-tumoral Treg cell depletion, which may underlie the lack of anti-tumor activity previously observed in pre-clinical models. Use of an anti-CD25 antibody with enhanced binding to activating FcγRs led to effective depletion of tumor-infiltrating Treg cells, increased effector to Treg cell ratios, and improved control of established tumors. Combination with anti-programmed cell death protein-1 antibodies promoted complete tumor rejection, demonstrating the relevance of CD25 as a therapeutic target and promising substrate for future combination approaches in immune-oncology

    Fc Effector Function Contributes to the Activity of Human Anti-CTLA-4 Antibodies.

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    With the use of a mouse model expressing human Fc-gamma receptors (FcγRs), we demonstrated that antibodies with isotypes equivalent to ipilimumab and tremelimumab mediate intra-tumoral regulatory T (Treg) cell depletion in vivo, increasing the CD8+ to Treg cell ratio and promoting tumor rejection. Antibodies with improved FcγR binding profiles drove superior anti-tumor responses and survival. In patients with advanced melanoma, response to ipilimumab was associated with the CD16a-V158F high affinity polymorphism. Such activity only appeared relevant in the context of inflamed tumors, explaining the modest response rates observed in the clinical setting. Our data suggest that the activity of anti-CTLA-4 in inflamed tumors may be improved through enhancement of FcγR binding, whereas poorly infiltrated tumors will likely require combination approaches

    Phylogenetic ctDNA analysis depicts early-stage lung cancer evolution.

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    The early detection of relapse following primary surgery for non-small-cell lung cancer and the characterization of emerging subclones, which seed metastatic sites, might offer new therapeutic approaches for limiting tumour recurrence. The ability to track the evolutionary dynamics of early-stage lung cancer non-invasively in circulating tumour DNA (ctDNA) has not yet been demonstrated. Here we use a tumour-specific phylogenetic approach to profile the ctDNA of the first 100 TRACERx (Tracking Non-Small-Cell Lung Cancer Evolution Through Therapy (Rx)) study participants, including one patient who was also recruited to the PEACE (Posthumous Evaluation of Advanced Cancer Environment) post-mortem study. We identify independent predictors of ctDNA release and analyse the tumour-volume detection limit. Through blinded profiling of postoperative plasma, we observe evidence of adjuvant chemotherapy resistance and identify patients who are very likely to experience recurrence of their lung cancer. Finally, we show that phylogenetic ctDNA profiling tracks the subclonal nature of lung cancer relapse and metastasis, providing a new approach for ctDNA-driven therapeutic studies
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