57 research outputs found
Positive Global Leadership
In the wake of increasing globalization, today’s organizational leaders are faced with unprecedented complexity. To help meeting the challenge, this article proposes a new positive approach to global leadership. After first providing the background on positivity, positive global leadership is carefully defined and its similarities and differences with both the established and contemporary leadership theories are noted. The discussion then turns to how positive global leadership addresses three major challenges in the global context of distance, cultural differences and cross-cultural barriers. The article concludes that this new positive approach can help global leaders to leverage diverse strengths in themselves and their environment to more effectively meet the escalating challenges they face now and in the future
Human, Social, and Now Positive Psychological Capital Management: Investing in People for Competitive Advantage
There is growing evidence that human resources are crucial to organizational success, and may offer the best return on investment for sustainable competitive advantage. Jeffery Pfeffer’s extensive work, summarized in his book The Human Equation, discusses substantially supported but unfortunate findings that only about half of today’s organizations and their managers believe that human resources really do matter. Moreover, only half of those organizations act upon their beliefs beyond paying lip service to this vital resource. Few organizations have adopted high performance work practices, such as 360-degree feedback, pay-for-performance, self-managed teams, employee empowerment, and other human-oriented initiatives. Furthermore, Pfeffer shows that about half of those who ‘‘believe’’ that human resources are their most important asset and ‘‘do something about it’’ actually ‘‘stick to’’ their beliefs and commit to these high performance work practices over time
Antecedents of academic performance of university students: academic engagement and psychological capital resources
Predicting academic performance is of key importance to the success, wellbeing and
prosperity of students, their families, the economy, and the society at large. This study
investigates the relationship between academic engagement, psychological capital (PsyCap) and
academic performance. Data were collected in two different universities, one in Spain and
another in Portugal. Students completed two self-report questionnaires regarding academic
engagement and Psychological Capital. Academic performance was assessed through Grade
Point Average, provided by the universities at the end of the exam period. The samples consisted
of 389 and 243 undergraduate students, respectively. Results showed a positive relationship
between academic engagement and PsyCap, on the one hand, and academic performance on the
other, in both samples. Results also supported PsyCap as a full mediator in the relationship
between academic engagement and academic performance. Exploration of alternative models
yielded superior fit for the proposed model. Accordingly, academically engaged students were
likely to experience higher levels of PsyCap, which in turn positively impacted their academic
performance. The results point to the importance of considering psychological predictors, rather
than the prevalent reliance on traditional predictors of academic performance
A Tale of Two Paradigms: The Impact of Psychological Capital and Reinforcing Feedback on Problem Solving and Innovation
This study drew from two distinct paradigms: the social cognitively based emerging field of positive organizational behavior or POB and the more established behaviorally based area of organizational behavior modification or OB Mod. The intent was to show that both can contribute to complex challenges facing today’s organizations. Using a quasi-experimental research design (N = 1,526 working adults), in general both the recently recognized core construct of psychological capital (representing POB) and reinforcing feedback (representing OB Mod), especially when partially mediated through a mastery-oriented mindset, were positively related to problem solving performance, reported innovation, and subsequent psychological capital. The implications for theoretical understanding and practice conclude the article
Entrepreneurs’ Courage, Psychological Capital, and Life Satisfaction
Entrepreneurship involves numerous risks and uncertainties. Positive psychological resources such as courage, as well as confidence, hope, optimism, and resilience (collectively referred to as psychological capital), can be valuable for entrepreneurs. This study examines that relationship between entrepreneurs’ courage, psychological capital, and life satisfaction. Results show that entrepreneurs’ courage is related to their life satisfaction, even after accounting for various characteristics of the entrepreneur (demographics and human capital) and the venture (venture size and survival). Moreover, psychological capital fully mediates the relationship between courage and life satisfaction. This is the first study to investigate courage empirically in the context of entrepreneurship, and one of a few studies to apply PsyCap in the entrepreneurial context. It is also the first study to jointly examine courage, PsyCap, and life satisfaction. Implications for future research and practice are discussed
Positive Psychology in Sales: Integrating Psychological Capital
As positive psychology moves into the workplace, researchers have been able to demonstrate the desirable impact of positive organizational behavior. Specifically, psychological capital (PsyCap) improves employee attitudes, behaviors, and performance. Advancing PsyCap in sales research is important given the need for a comprehensive positive approach to drive sales performance, offset the high cost of salesperson turnover, improve cross-functional sales interfaces, and enrich customer relationships. The authors provide an integrative review of PsyCap, discuss its application in sales, and advance an agenda for future research. Research prescriptions are organized according to individual-level, intra-organizational, and extra-organizational outcomes pertinent to the sales field
Rheumatoid arthritis - clinical aspects: 134. Predictors of Joint Damage in South Africans with Rheumatoid Arthritis
Background: Rheumatoid arthritis (RA) causes progressive joint damage and functional disability. Studies on factors affecting joint damage as clinical outcome are lacking in Africa. The aim of the present study was to identify predictors of joint damage in adult South Africans with established RA. Methods: A cross-sectional study of 100 black patients with RA of >5 years were assessed for joint damage using a validated clinical method, the RA articular damage (RAAD) score. Potential predictors of joint damage that were documented included socio-demographics, smoking, body mass index (BMI), disease duration, delay in disease modifying antirheumatic drug (DMARD) initiation, global disease activity as measured by the disease activity score (DAS28), erythrocyte sedimentation rate (ESR), C reactive protein (CRP), and autoantibody status. The predictive value of variables was assessed by univariate and stepwise multivariate regression analyses. A p value <0.05 was considered significant. Results: The mean (SD) age was 56 (9.8) years, disease duration 17.5 (8.5) years, educational level 7.5 (3.5) years and DMARD lag was 9 (8.8) years. Female to male ratio was 10:1. The mean (SD) DAS28 was 4.9 (1.5) and total RAAD score was 28.3 (12.8). The mean (SD) BMI was 27.2 kg/m2 (6.2) and 93% of patients were rheumatoid factor (RF) positive. More than 90% of patients received between 2 to 3 DMARDs. Significant univariate predictors of a poor RAAD score were increasing age (p = 0.001), lower education level (p = 0.019), longer disease duration (p < 0.001), longer DMARD lag (p = 0.014), lower BMI (p = 0.025), high RF titre (p < 0.001) and high ESR (p = 0.008). The multivariate regression analysis showed that the only independent significant predictors of a higher mean RAAD score were older age at disease onset (p = 0.04), disease duration (p < 0.001) and RF titre (p < 0.001). There was also a negative association between BMI and the mean total RAAD score (p = 0.049). Conclusions: Patients with longstanding established RA have more severe irreversible joint damage as measured by the clinical RAAD score, contrary to other studies in Africa. This is largely reflected by a delay in the initiation of early effective treatment. Independent of disease duration, older age at disease onset and a higher RF titre are strongly associated with more joint damage. The inverse association between BMI and articular damage in RA has been observed in several studies using radiographic damage scores. The mechanisms underlying this paradoxical association are still widely unknown but adipokines have recently been suggested to play a role. Disclosure statement: C.I. has received a research grant from the Connective Tissue Diseases Research Fund, University of the Witwatersrand. All other authors have declared no conflicts of interes
The impact of immediate breast reconstruction on the time to delivery of adjuvant therapy: the iBRA-2 study
Background:
Immediate breast reconstruction (IBR) is routinely offered to improve quality-of-life for women requiring mastectomy, but there are concerns that more complex surgery may delay adjuvant oncological treatments and compromise long-term outcomes. High-quality evidence is lacking. The iBRA-2 study aimed to investigate the impact of IBR on time to adjuvant therapy.
Methods:
Consecutive women undergoing mastectomy ± IBR for breast cancer July–December, 2016 were included. Patient demographics, operative, oncological and complication data were collected. Time from last definitive cancer surgery to first adjuvant treatment for patients undergoing mastectomy ± IBR were compared and risk factors associated with delays explored.
Results:
A total of 2540 patients were recruited from 76 centres; 1008 (39.7%) underwent IBR (implant-only [n = 675, 26.6%]; pedicled flaps [n = 105,4.1%] and free-flaps [n = 228, 8.9%]). Complications requiring re-admission or re-operation were significantly more common in patients undergoing IBR than those receiving mastectomy. Adjuvant chemotherapy or radiotherapy was required by 1235 (48.6%) patients. No clinically significant differences were seen in time to adjuvant therapy between patient groups but major complications irrespective of surgery received were significantly associated with treatment delays.
Conclusions:
IBR does not result in clinically significant delays to adjuvant therapy, but post-operative complications are associated with treatment delays. Strategies to minimise complications, including careful patient selection, are required to improve outcomes for patients
The evolving SARS-CoV-2 epidemic in Africa: Insights from rapidly expanding genomic surveillance
INTRODUCTION
Investment in Africa over the past year with regard to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) sequencing has led to a massive increase in the number of sequences, which, to date, exceeds 100,000 sequences generated to track the pandemic on the continent. These sequences have profoundly affected how public health officials in Africa have navigated the COVID-19 pandemic.
RATIONALE
We demonstrate how the first 100,000 SARS-CoV-2 sequences from Africa have helped monitor the epidemic on the continent, how genomic surveillance expanded over the course of the pandemic, and how we adapted our sequencing methods to deal with an evolving virus. Finally, we also examine how viral lineages have spread across the continent in a phylogeographic framework to gain insights into the underlying temporal and spatial transmission dynamics for several variants of concern (VOCs).
RESULTS
Our results indicate that the number of countries in Africa that can sequence the virus within their own borders is growing and that this is coupled with a shorter turnaround time from the time of sampling to sequence submission. Ongoing evolution necessitated the continual updating of primer sets, and, as a result, eight primer sets were designed in tandem with viral evolution and used to ensure effective sequencing of the virus. The pandemic unfolded through multiple waves of infection that were each driven by distinct genetic lineages, with B.1-like ancestral strains associated with the first pandemic wave of infections in 2020. Successive waves on the continent were fueled by different VOCs, with Alpha and Beta cocirculating in distinct spatial patterns during the second wave and Delta and Omicron affecting the whole continent during the third and fourth waves, respectively. Phylogeographic reconstruction points toward distinct differences in viral importation and exportation patterns associated with the Alpha, Beta, Delta, and Omicron variants and subvariants, when considering both Africa versus the rest of the world and viral dissemination within the continent. Our epidemiological and phylogenetic inferences therefore underscore the heterogeneous nature of the pandemic on the continent and highlight key insights and challenges, for instance, recognizing the limitations of low testing proportions. We also highlight the early warning capacity that genomic surveillance in Africa has had for the rest of the world with the detection of new lineages and variants, the most recent being the characterization of various Omicron subvariants.
CONCLUSION
Sustained investment for diagnostics and genomic surveillance in Africa is needed as the virus continues to evolve. This is important not only to help combat SARS-CoV-2 on the continent but also because it can be used as a platform to help address the many emerging and reemerging infectious disease threats in Africa. In particular, capacity building for local sequencing within countries or within the continent should be prioritized because this is generally associated with shorter turnaround times, providing the most benefit to local public health authorities tasked with pandemic response and mitigation and allowing for the fastest reaction to localized outbreaks. These investments are crucial for pandemic preparedness and response and will serve the health of the continent well into the 21st century
Measurement of the W boson polarisation in events from pp collisions at = 8 TeV in the lepton + jets channel with ATLAS
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