Improving Team Performance By Identifying and Targeting Back-Up Behaviors: A Training Strategy

The purpose of this research was to determine if training workshops of short duration (one-to-three hours) could contribute to enhanced teamwork and hence improved team performance for teams at the primary level (first production level) of a natural gas service and installation organization. The teamwork characteristic of back-up behaviors (i.e., actions to help other team members that require adaption or anticipation and improve team performance by contributing to successful task completion) was the focus of workshop activities. Other strategies were employed to enhance the process such as team-building, goal setting and feedback. Feedback consisted of posting back-up behavior scores (i.e., proportion of occurred to could-have-occurred ) and sharing that information with individual team members. Three teams were subjected to each of four experimental conditions: (1) TBP: three-hour team-building workshop, goal setting for attainment of back-up behaviors and posting; (2) TB: three-hour team-building workshop and goal setting for attainment of back-up behaviors; (3) P: one-hour discussion of back-up behaviors and posting; and (4) C: control participants. Dependent variables included team member responses to the Teamwork Checklist (Varney, 1989, which addressed teamwork characteristics of leadership, process, interpersonal relationships, and task), supervisor responses to the Performance Indicator (Varney, 1990, which measured team performance and quality), and observations of the occurrence of back-up behaviors on the job. Results indicate that short duration workshops which focus on back-up behaviors and utilize either goal setting or feedback promote acquisition of targeted behaviors as well as improve team performance even though there is a lack of improvement in other teamwork characteristics. Although not predicted, the one-hour workshop which focused on back-up behaviors and utilized the posting strategy yielded the most marked improvement in overall team performance. Practical implications are that team performance can be enhanced by identifying and targeting back-up behaviors in short duration activities but follow-up team-building may be required to enhance other teamwork elements. Data from this research were contributed to a national multi-site research endeavor on teamwork characteristics and a training protocol was suggested for use in similar organizations

XXIV. Memoir on some zoological facts applicable to the theory of the earth. Read in the physical and mathematical class of the French National Institute on the 22 d of October 1804

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Taming Strategy Logic: Non-Recurrent Fragments

Strategy Logic (SL for short) is one of the prominent languages for reasoning about the strategic abilities of agents in a multi-agent setting. This logic extends LTL with first-order quantifiers over the agent strategies and encompasses other formalisms, such as ATL* and CTL*. The model-checking problem for SL and several of its fragments have been extensively studied. On the other hand, the picture is much less clear on the satisfiability front, where the problem is undecidable for the full logic. In this work, we study two fragments of One-Goal SL, where the nesting of sentences within temporal operators is constrained. We show that the satisfiability problem for these logics, and for the corresponding fragments of ATL* and CTL*, is ExpSpace and PSpace-complete, respectively

Mg and its alloys for biomedical applications: Exploring corrosion and its interplay with mechanical failure

The future of biomaterial design will rely on temporary implant materials that degrade while tissues grow, releasing no toxic species during degradation and no residue after full regeneration of the targeted anatomic site. In this aspect, Mg and its alloys are receiving increasing attention because they allow both mechanical strength and biodegradability. Yet their use as biomedical implants is limited due to their poor corrosion resistance and the consequential mechanical integrity problems leading to corrosion assisted cracking. This review provides the reader with an overview of current biomaterials, their stringent mechanical and chemical requirements and the potential of Mg alloys to fulfil them. We provide insight into corrosion mechanisms of Mg and its alloys, the fundamentals and established models behind stress corrosion cracking and corrosion fatigue. We explain Mgs unique negative differential effect and approaches to describe it. Finally, we go into depth on corrosion improvements, reviewing literature on high purity Mg, on the effect of alloying elements and their tolerance levels, as well as research on surface treatments that allow to tune degradation kinetics. Bridging fundamentals aspects with current research activities in the field, this review intends to give a substantial overview for all interested readers; potential and current researchers and practitioners of the future not yet familiar with this promising material. © 2017 by the authors. Licensee MDPI, Basel, Switzerland

Renewable hydrogen supply chains: A planning matrix and an agenda for future research

Worldwide, energy systems are experiencing a transition to more sustainable systems. According to the Hydrogen Roadmap Europe (FCH EU, 2019), hydrogen will play an important role in future energy systems due to its ability to support sustainability goals and will account for approximately 13% of the total energy mix in the coming future. Correct hydrogen supply chain (HSC) planning is therefore vital to enable a sustainable transition, in particular when hydrogen is produced by water electrolysis using electricity from renewable sources (renewable hydrogen). However, due to the operational characteristics of the renewable HSC, its planning is complicated. Renewable hydrogen supply can be diverse: Hydrogen can be produced de-centrally with renewables, such as wind and solar energy, or centrally by using electricity generated from a hydro power plant with a large volume. Similarly, demand for hydrogen can also be diverse, with many new applications, such as fuels for fuel cell electrical vehicles and electricity generation, feedstocks in industrial processes, and heating for buildings. The HSC consists of various stages (production, storage, distribution, and applications) in different forms, with strong interdependencies, which further increase HSC complexity. Finally, planning of an HSC depends on the status of hydrogen adoption and market development, and on how mature technologies are, and both factors are characterised by high uncertainties. Directly adapting the traditional approaches of supply chain (SC) planning for HSCs is insufficient. Therefore, in this study we develop a planning matrix with related planning tasks, leveraging a systematic literature review to cope with the characteristics of HSCs. We focus only on renewable hydrogen due to its relevance to the future low-carbon economy. Furthermore, we outline an agenda for future research, from the supply chain management perspective, in order to support renewable HSC development, considering the different phases of renewable HSCs adoption and market development

The lecture video recording in university: A case study

The latest European statistics show that Italy has the second lowest percentage of university graduates because of different reasons such as the outdated teaching methodologies or the high costs of university tuitions. Hence, Italian universities have launched several projects to improve or innovate the pedagogical strategies, to raise the student recruitment and to increase access to education. In this work, we describe a pilot study about the use of the video recording of the traditional lessons in order to create specific university MOOCs. In particular, the degree course in Computer Science of University of Naples Federico II is involved in this project. The use of the lecture video recording reduces the MOOC costs and facilitates the contents management. In fact, the production of these MOOCs does not require professional operators so it is possible to involve students of university part-time job or Civil Service volunteers. The results show a good satisfaction by students and prove as these MOOCs can support the university teaching