The Power of Empowerment:Predictors and Benefits of Shared Leadership in Organizations

Leadership plays an essential part in creating competitive advantage and well-beingamong employees. One way in which formal leaders can deal with the variety ofresponsibilities that comes with their role is to share their responsibilities with teammembers (i.e., shared leadership). Although there is abundant literature on how highquality peer leadership benefits team effectiveness (TE) and well-being, there is only limitedevidence about the underpinning mechanisms of these relationships and how the formalleader can support this process. To address this lacuna, we conducted an online surveystudy with 146 employees from various organizations. The results suggest that anempowering leadership style of the formal leader is associated with higher perceived peerleadership quality (PLQ) on four different leadership roles (i.e., task, motivational, social,and external leader). In addition, formal leaders who empower their team members arealso perceived as better leaders themselves. Moreover, the improved PLQ was in turnpositively related to TE and work satisfaction, while being negatively related to burnout.In line with the social identity approach, we found that team identification mediated theserelationships. Thus, high-quality peer leaders succeeded in creating a shared sense of“us” in the team, and this team identification in turn generated all the positive outcomes.To conclude, by sharing their lead and empowering the peer leaders in their team, formalleaders are key drivers of the team’s effectiveness, while also enhancing team members’health and well-being

Evolution of migration trajectories and transnational social networks over time:a study among sub-Saharan African migrants in Europe

The transnational social networks of migrants are extensively studied, but little is known about the associations between transnational social networks and individual migration trajectories over the course of migrants’ lives. In this paper, we reconstruct the migration trajectories and transnational social networks of African migrants until their arrival in Europe and develop a typology that reflects the diversity of their trajectories. Based on unique retrospective life-history data of the MAFE project, our comparative perspective highlights the diversity of African migrants residing in Europe, the routes that they took before arriving in Europe and the types of transnational networks they had before, during and after migrating. Furthermore, we discuss the socio-demographic and socio-economic characteristics of migrants within each typology. Consequently, this paper challenges the singular African migration stereotype and draws attention to the associations between transnational social networks and migration trajectories

Evolution of migration trajectories and transnational social networks over time:a study among sub-Saharan African migrants in Europe

The transnational social networks of migrants are extensively studied, but little is known about the associations between transnational social networks and individual migration trajectories over the course of migrants’ lives. In this paper, we reconstruct the migration trajectories and transnational social networks of African migrants until their arrival in Europe and develop a typology that reflects the diversity of their trajectories. Based on unique retrospective life-history data of the MAFE project, our comparative perspective highlights the diversity of African migrants residing in Europe, the routes that they took before arriving in Europe and the types of transnational networks they had before, during and after migrating. Furthermore, we discuss the socio-demographic and socio-economic characteristics of migrants within each typology. Consequently, this paper challenges the singular African migration stereotype and draws attention to the associations between transnational social networks and migration trajectories

Pre-incubation of cell-free HIV-1 group M isolates with non-nucleoside reverse transcriptase inhibitors blocks subsequent viral replication in co-cultures of dendritic cells and T cells.

In order to study the inhibitory effect of various reverse transcriptase inhibitors (RTIs) on cell-free HIV, we adapted a recently described in vitro system, based on co-cultures of dendritic cells and resting CD4 T cells, modelling early target cells during sexual transmission. The compounds tested included the second-generation non-nucleoside RTI (NNRTI) TMC-120 (R147681, dapivirine) and TMC-125 (R165335, travertine), as well as the reference nucleoside RTI AZT (zidovudine), the nucleotide RTI PMPA (tenofovir) and the NNRTI UC-781. The virus strains included the reference strain HIV-1Ba-L and six primary isolates, representative of the HIV-1 group M pandemic. They all display the non-syncytium-inducing and CCR5 receptor-using (NSI/R5) phenotype, important in transmission. Cell-free virus was immobilized on a poly-L-lysine (PLL)-treated microwell plate and incubated with compound for 1 h. Afterwards, the compound was thoroughly washed away; target cells were added and cultured for 2 weeks, followed by an extended culture with highly susceptible mitogen-activated T cells. Viral production in the cultures was measured on supernatant with HIV antigen ELISA. Negative results were confirmed by showing absence of proviral DNA in the cells. TMC-120 and TMC-125 inhibited replication of HIV-1Ba-L with average EC50 values of 38 nM and 117 nM, respectively, whereas the EC50 of UC-781 was 517 nM. Complete suppression of virus and provirus was observed at compound concentrations of 100, 300 and 1000 nM, respectively. Inhibition of all primary isolates followed the same pattern as HIV-1Ba-L. In contrast, pre-treating the virus with the nucleotide RTI PMPA and AZT failed to inhibit infection even at a concentration of 100000 nM. These data clearly suggest that NNRTIs inactivate RT enzymatic activity of different viral clades (predominant in the epidemic) and might be proposed for further testing as a sterilizing microbicide worldwide

Tempering Transnational Advocacy?:The Effect of Repression and Regulatory Restriction on Transnational NGO Collaborations

This paper examines through qualitative study the effect of government regulatory restriction and repression on non-governmental organizations (NGOs) engaging in transnational advocacy. The focus is on NGO’s advocacy activities, in the realm of human rights, environment, labor and development in particular, using illustrations from Bangladesh and Zambia. It finds that next to some NGOs disbanding and moving towards service activities, many NGOs shift in terms of substantive advocacy and form of organizational collaboration. To continue cross-border interactions with their foreign partners, many NGOs adjust to circumvent or compensate for restrictions and repression. Because of this, transnational advocacy can be said to continue, but repression and restrictions have significant substantive and organizational effects for the collaborations studied, and cross-border NGO collaborations in our sample are increasingly fragile and their advocacy more tempered

Leading from the Centre: A Comprehensive Examination of the Relationship between Central Playing Positions and Leadership in Sport

This is the final version of the article. Available from Public Library of Science via the DOI in this record.RESEARCH AIMS: The present article provides a comprehensive examination of the relationship between playing position and leadership in sport. More particularly, it explores links between leadership and a player's interactional centrality-defined as the degree to which their playing position provides opportunities for interaction with other team members. This article examines this relationship across different leadership roles, team sex, and performance levels. RESULTS: Study 1 (N = 4443) shows that athlete leaders (and the task and motivational leader in particular) are more likely than other team members to occupy interactionally central positions in a team. Players with high interactional centrality were also perceived to be better leaders than those with low interactional centrality. Study 2 (N = 308) established this link for leadership in general, while Study 3 (N = 267) and Study 4 (N = 776) revealed that the same was true for task, motivational, and external leadership. This relationship is attenuated in sports where an interactionally central position confers limited interactional advantages. In other words, the observed patterns were strongest in sports that are played on a large field with relatively fixed positions (e.g., soccer), while being weaker in sports that are played on a smaller field where players switch positions dynamically (e.g., basketball, ice hockey). Beyond this, the pattern is broadly consistent across different sports, different sexes, and different levels of skill. CONCLUSIONS: The observed patterns are consistent with the idea that positions that are interactionally central afford players greater opportunities to do leadership-either through communication or through action. Significantly too, they also provide a basis for them to be seen to do leadership by others on their team. Thus while it is often stated that "leadership is an action, not a position," it is nevertheless the case that, when it comes to performing that action, some positions are more advantageous than others.This research was supported by a grant from Internal Funds KU Leuven, awarded to Katrien Fransen