Sensitivity analysis in a scoping review on police accountability : assessing the feasibility of reporting criteria in mixed studies reviews

In this paper, we report on the findings of a sensitivity analysis that was carried out within a previously conducted scoping review, hoping to contribute to the ongoing debate about how to assess the quality of research in mixed methods reviews. Previous sensitivity analyses mainly concluded that the exclusion of inadequately reported or lower quality studies did not have a significant effect on the results of the synthesis. In this study, we conducted a sensitivity analysis on the basis of reporting criteria with the aims of analysing its impact on the synthesis results and assessing its feasibility. Contrary to some previous studies, our analysis showed that the exclusion of inadequately reported studies had an impact on the results of the thematic synthesis. Initially, we also sought to propose a refinement of reporting criteria based on the literature and our own experiences. In this way, we aimed to facilitate the assessment of reporting criteria and enhance its consistency. However, based on the results of our sensitivity analysis, we opted not to make such a refinement since many publications included in this analysis did not sufficiently report on the methodology. As such, a refinement would not be useful considering that researchers would be unable to assess these (sub-)criteria

Responses to co-workers receiving recognition at work

Purpose - The purpose of this paper is to examine the impact of co-workers receiving recognition on two types of responses, namely emotions (positive and negative) and behavioral intentions (interpersonal counterproductive behavior and interpersonal citizenship behavior). Design/methodology/approach - This study is an experimental scenario study with a 2 x 2 between-subjects design with 246 employees from a local health care organization. Findings - The findings reveal that the relation between the recognition of others and positive or negative emotions was moderated by the quality of the relationship between both actors. Further, as hypothesized, the relation between the recognition of others and interpersonal counterproductive behavior was moderated by relationship quality. Contrary to the authors' expectations, relationship quality did not moderate the relation between employee recognition and interpersonal citizenship behavior. Practical implications - This study provides useful suggestions for managers to diminish undesired (i.e. negative emotions and interpersonal counterproductive behavior) and enhance desired emotions and behaviors (i.e. positive emotions and interpersonal citizenship behavior). Originality/value - This study is the first to show that employee recognition may have negative effects on the emotions of others and interpersonal behavior (i.e. interpersonal counterproductive behavior)

Platelet Biochemistry and Morphology after Cryopreservation

Platelet cryopreservation has been investigated for several decades as an alternative to room temperature storage of platelet concentrates. The use of dimethylsulfoxide as a cryoprotectant has improved platelet storage and cryopreserved concentrates can be kept at −80 °C for two years. Cryopreserved platelets can serve as emergency backup to support stock crises or to disburden difficult logistic areas like rural or military regions. Cryopreservation significantly influences platelet morphology, decreases platelet activation and severely abrogates platelet aggregation. Recent data indicate that cryopreserved platelets have a procoagulant phenotype because thrombin and fibrin formation kicks in earlier compared to room temperature stored platelets. This happens both in static and hydrodynamic conditions. In a clinical setting, low 1-h post transfusion recoveries of cryopreserved platelets represent fast clearance from circulation which may be explained by changes to the platelet GPIbα receptor. Cryopreservation splits the concentrate in two platelet subpopulations depending on GPIbα expression levels. Further research is needed to unravel its physiological importance. Proving clinical efficacy of cryopreserved platelets is difficult because of the heterogeneity of indications and the ambiguity of outcome measures. The procoagulant character of cryopreserved platelets has increased interest for use in trauma stressing the need for double-blinded randomized clinical trials in actively bleeding patients

Full scale pumping tests on SCC: application of the modified Hattori-Izumi theory

Studying the flow of fresh concrete is influenced by time dependency of the rheological properties of the concrete. This time dependency can be divided into two parts : the non-reversible part, being loss of workability and the reversible part, called thixotropy. Loss of workability can be neglected in some cases, when comparing with the effect of thixotropy, but it is advised to keep track of it, especially in case of SCC for precast industry. Several attempts have been made to characterize the thixotropic properties of concrete, but no general test procedure is known at this moment to universally describe thixotropy. In most cases, the study of the thixotropic properties is restricted to the area of interest of the authors, mostly the variation of static yield stress. Only one theory takes into account the influence of thixotropy on both viscosity and yield stress : the Hattori-Izumi theory, modified by J.E. Wallevik. This theory will be used to provide a qualitative description of the observed phenomena occurring during pumping of SCC, but due to the large complexity of both the theory and the practical application, a quantitative approach is beyond the scope of this study