Early Initiation of Breastfeeding and Exclusive Breastfeeding in Anglophone and Francophone West African Countries: Systematic Review and Meta-Analysis of Prevalence.

Early initiation of breastfeeding (EIBF) and exclusive breastfeeding (EBF) are highly effective forms of preventive medicine in many low- and middle-income countries, including Anglophone and Francophone West African countries. Despite the proven benefits of EIBF and EBF in reducing mortality and morbidity, there is limited systematic evidence from West African countries. Hence, the aim of this systematic review and meta-analysis was to estimate the pooled prevalence of EIBF and EBF in Anglophone and Francophone West African countries.

Supporting implementation of universal prevention initiatives in K-12 schools: impacts on fidelity through organizational readiness and team functioning in a cluster-randomized trial.

Background: Rural School Support Strategies (RS3) is a bundle of implementation supports (including training, technical assistance, and a virtual learning collaborative) designed for the scale-up of universal prevention initiatives. This study addresses mechanisms of action, exploring whether positive effects of RS3 on implementation fidelity are attributable to improvements in functioning of school implementation teams, and increases in organizational readiness.

Methods: Data are from a cluster-randomized hybrid Type 3 implementation-effectiveness trial of RS3 among rural Idaho schools implementing Positive Behavioral Interventions and Supports (PBIS).

Relative effectiveness of the second booster COVID-19 vaccines against laboratory confirmed SARS-CoV-2 infection in healthcare workers: VEBIS HCW VE cohort study (1 October 2022-2 May 2023).

Introduction: Repeated COVID-19 booster vaccination was recommended in healthcare workers (HCWs) to maintain protection. We measured the relative vaccine effectiveness (rVE) of the second booster dose of COVID-19 vaccine compared to the first booster, against laboratory-confirmed SARS-CoV-2 infection in HCWs.

Methods: In a prospective cohort study among HCWs from 12 European hospitals, we collected nasopharyngeal or saliva samples at enrolment and during weekly/fortnightly follow-up between October 2022 and May 2023.

Flexibility and resilience in equity-centered research: lessons learned conducting a randomized controlled trial of a family-based substance use prevention program for American Indian families.

Meaningful and effective community engagement lies at the core of equity-centered research, which is a powerful tool for addressing health disparities in American Indian (AI) communities. It is essential for centering Indigenous wisdom as a source of solutions and disrupting Western-centric perspectives and inequitable and exclusionary research practices. This paper reports on lessons learned implementing an effectiveness trial of the Thiwáhe Glúwaš'akapi program (TG) program (translated as "sacred home in which families are made strong")-a family-based substance use prevention program-in a post-pandemic era with an American Indian reservation community that has confronted extreme challenges.

Effect of Alkyl- vs Alkoxy-Arene Substituents on the Deactivation Processes and Fluorescence Quantum Yields of Exciplexes.

Decay processes of exciplexes of cyanoanthracenes with alkylbenzene donors were compared to those with alkoxybenzenes. For the three decay processes of exciplexes, the radiative rate constant () of alkoxy derivatives is slightly lower than those of alkylbenzenes at the same average exciplex energy. However, the corresponding deactivation rate constants, intersystem crossing () and nonradiative decay (), are considerably higher.