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This paper describes the implementation of a role-play exercise to illustrate the influence of followership styles and effective communication on leader-follower relationship formation and development. We provide the pedagogical theory and evidence behind using role-plays in classroom settings, followed by a literature review pertaining to leader-member relations and followership on which this role-play is based. The activity aims to fulfill multiple objectives: (a) to explain the importance of effectively managing-up the hierarchy, (b) to use effective communication skills in challenging and conflict laden situations, and (c) to expand self- awareness and explore own implicit assumptions. We further provide the session plan for using the role-play including the instructions, timing, and role handouts, and discuss potential outcomes.

This study aims to explore the formation mechanism of aerodynamic noise of a high-speed maglev train and understand the characteristics of dipole and quadrupole sound sources of the maglev train at different speed levels.

Based on large eddy simulation (LES) method and Kirchhoff–Ffowcs Williams and Hawkings (K-FWH) equations, the characteristics of dipole and quadrupole sound sources of maglev trains at different speed levels were simulated and analyzed by constructing reasonable penetrable integral surface.

The spatial disturbance resulting from the separation of the boundary layer in the streamlined area of the tail car is the source of aerodynamic sound of the maglev train. The dipole sources of the train are mainly distributed around the radio terminals of the head and tail cars of the maglev train, the bottom of the arms of the streamlined parts of the head and tail cars and the nose tip area of the streamlined part of the tail car, and the quadrupole sources are mainly distributed in the wake area. When the train runs at three speed levels of 400, 500 and 600 km·h⁻¹, respectively, the radiated energy of quadrupole source is 62.4%, 63.3% and 71.7%, respectively, which exceeds that of dipole sources.

This study can help understand the aerodynamic noise characteristics generated by the high-speed maglev train and provide a reference for the optimization design of its aerodynamic shape.

This study compares the fatigue performance and biocompatibility of as-built and chemically etched Ti-6Al-4V alloys in TPMS-gyroid and stochastic structures fabricated via Powder Bed Fusion Laser Beam (PBF-LB). This study aims to understand how complex lattice structures and post-manufacturing treatment, particularly chemical etching, affect the mechanical properties, surface morphology, fatigue resistance and biocompatibility of these metamaterials for biomedical applications.

Selective Laser Melting (SLM) technology was used to fabricate TPMS-gyroid and Voronoi stochastic designs with three different relative densities (0.2, 0.3 and 0.4) in Ti-6Al-4V ELI alloy. The as-built samples underwent a chemical etching process to enhance surface quality. Mechanical characterization included static compression and dynamic fatigue testing, complemented by scanning electron microscopy (SEM) for surface and failure analysis. The biocompatibility of the samples was assessed through in-vitro cell viability assays using the Alamar Blue assay and cell proliferation studies.

Chemical etching significantly improves the surface morphology, mechanical properties and fatigue resistance of both TPMS-gyroid and stochastic structures. Gyroid structures demonstrated superior mechanical performance and fatigue resistance compared to stochastic structures, with etching providing more pronounced benefits in these aspects. In-vitro biocompatibility tests showed high cytocompatibility for both as-built and etched samples, with etched samples exhibiting notably improved cell viability. The study also highlights the importance of design and post-processing in optimizing the performance of Ti64 components for biomedical applications.

The comparative analysis between as-built and etched conditions, alongside considering different lattice designs, provides valuable information for developing advanced biomedical implants. The demonstration of enhanced fatigue resistance and biocompatibility through etching adds significant value to the field of additive manufacturing, suggesting new avenues for designing and post-processing implantable devices.

The field of broad-based employee ownership within corporations is a specific application of the foundational topic of property ownership. It is situated at the intersection of a broad range of scholarly disciplines including economics, law, finance and management. Each discipline contributes vocabulary and distinctions describing this field. That broad spectrum of disciplinary inquiry is a strength but it also lends a “ships passing in the night” quality to discussions of employee ownership. This paper attempts to unravel the narrative diversity surrounding this topic. Four meanings of ownership are introduced. Those meanings are in turn embedded within two abstract models of the corporation; the corporation as property and the corporation as social institution.

There is no experimental design The paper presents a conceptual overview and introduces a taxonomy of four meanings and two models of ownership.

Four meanings of ownership are introduced. The meanings are ownership as compensation, investment, retirement and membership. Those meanings are in turn embedded within two abstract models of the corporation; the corporation as property and the corporation as social institution.

No hypotheses are advanced. This is not a research paper. A conceptual overview that makes use of taxonomy of meanings and models is introduced to help clarify confusions abundant in the field of employee ownership. Readers may differ with the categories of meanings and models introduced in this conceptual overview.

The ambition of the paper is to describe the various meanings and models of employee ownership presently in use in both academic and applied settings. It is not necessary or desirable to assert the primacy of a single meaning or model in order to achieve progress. The analysis provided here surfaces a range of assumptions about ownership that have heretofore been implicit in both scholarship and in practice. Making those assumptions explicit should prove useful to both scholars and practitioners of employee ownership.

The concept of employee ownership enjoys a relatively broad appeal with the public. Among the academic disciplines that have trained their lights upon it, a more mixed reception prevails. Much of the academic and policy controversy derives from confusion about the nature and structure of employee ownership. This paper attempts to address that confusion by presenting a taxonomy of meanings and models that may prove useful for future research.

This study is one of the first efforts to comprehinsively map the various meanings and models of broad-based employee ownership.

The purpose of the current flow configurations is to bring to attention the thermophysical aspects of magnetohydrodynamics (MHD) Williamson nanofluid flow under the effects of Joule heating, nonlinear thermal radiation, variable thermal coefficient and activation energy past a rotating stretchable surface.

A mathematical model is examined to study the heat and mass transport analysis of steady MHD Williamson fluid flow past a rotating stretchable surface. Impact of activation energy with newly introduced variable diffusion coefficient at the mass equation is considered. The transport phenomenon is modeled by using highly nonlinear PDEs which are then reduced into dimensionless form by using similarity transformation. The resulting equations are then solved with the aid of fifth-order Fehlberg method.

The rotating fluid, heat and mass transport effects are analyzed for different values of parameters on velocity, energy and diffusion distributions. Parameters like the rotation parameter, Hartmann number and Weissenberg number control the flow field. In addition, the solar radiation, Joule heating, Prandtl number, thermal conductivity, concentration diffusion coefficient and activation energy control the temperature and concentration profiles inside the stretching surface. It can be analyzed that for higher values of thermal conductivity, Eckret number and solar radiation parameter the temperature profile increases, whereas opposite behavior is noticed for Prandtl number. Moreover, for increasing values of temperature difference parameter and thermal diffusion coefficient, the concentration profile shows reducing behavior.

This paper is useful for researchers working in mathematical and theoretical physics. Moreover, numerical results are very useful in industry and daily-use processes.

The voice of school principals represents the principals' thoughts and experiences because of their as teachers' evaluator. It provides principals' perception on making sense the teacher evaluation. In qualitative research, voice can provide the truth and meaning of principals' experience in teachers evaluation. Their voices in the qualitative interviews are recorded and transcribed into words (Jackson and Mazzei, 2009 and Charteris and Smardon, 2018). By listening to the voices of principals in five provinces in Indonesia, this study, a qualitative research, intends to explore the principals' sensemaking in teacher evaluation.

This study adopted a qualitative approach, as it was principally concerned with capturing participants' direct experiences in their natural setting as both the teachers' evaluator and school leader (Patton, 2002). The qualitative interview and content analysis were used in this study. The qualitative interview is a type of conversation used to explore informants' experiences and interpretations; in this study, the headmaster (Mishler, 1986; Spradley, 1979 in Hatch, 2002). Researchers used the interviews to uncover the structure of meaning used by principals in making sense the policies that determine teacher evaluations and that are used to carry out evaluations within principal's local authority. The implicit structure can be discovered from direct observation, and the qualitative interviews can bring this meaning to the surface (Hatch, 2002). Therefore, by applying the qualitative interviews, it is expected that information or “unique” interpretations from the principal can be obtained (Stake, 2010). Content analysis is a research technique for making valid conclusions from oral texts into a research context. This analysis can provide new insights, improve researchers' understanding of certain phenomena, or inform other practical actions through the use of verbal data collected in the form of answers to open interview questions (Krippendorff, 2004).

There are three important findings relating to principals' sensemaking of teachers' evaluation; they are teachers' length of service, principals' perceptions of teacher evaluations and consistency in teacher performance improvement. The principals' perception greatly influences their beliefs and sensemaking of teacher evaluation. In essence, teacher evaluation has not been used to identify high-quality teachers. Principals focus more on the improvement of teachers' welfare than teacher actual performance.

Future research should explore principals' attitude toward the stakeholders when student achievement is not in line with the consistent increase in teachers' performance ratings. And, it is also necessary to investigate the policy makers response to see the consistent improvement in teacher's evaluation is not in line with student achievement. Finally, how to eliminate the culture of joint responsibility without causing frictions in the school environment.

The authors hereby declare that this submission is their own work, and to the best of their knowledge, it contains no materials previously published or written by another person, or substantial proportions of material that have been accepted for the award of any other degree or diploma any other publishers.