Search results

Project AURORA aims at the development of an unmanned airship capable of autonomous flight over user‐defined locations for aerial inspection and imagery acquisition. Presents a guidance control strategy for the trajectory path following of the AURORA airship, where the objective is to make the vehicle follow a set of pre‐defined points. The guidance strategy is based on a path tracking error generation methodology that takes into account both the distance and the angular errors of the airship with respect to the desired trajectory. The guidance system is composed of a path tracking guidance controller (as outer loop) and a heading controller (as inner loop), using the rudder deflection. Also proposes an additional roll controller, using the aileron input, in order to reduce rolling oscillations during yaw maneuvering and due to atmospheric turbulence.

We present a critical literature review debating Brazilian research on social and environmental accounting (SEA). The aim of this study is to understand the role of politics in the construction of hegemonies in SEA research in Brazil. In particular, we examine the role of hegemony in relation to the co-option of SEA literature and sustainability in the Brazilian context by the logic of development for economic growth in emerging economies. The methodological approach adopts a post-structural perspective that reflects Laclau and Mouffe’s discourse theory. The study employs a hermeneutical, rhetorical approach to understand and classify 352 Brazilian research articles on SEA. We employ Brown and Fraser’s (2006) categorizations of SEA literature to help in our analysis: the business case, the stakeholder–accountability approach, and the critical case. We argue that the business case is prominent in Brazilian studies. Second-stage analysis suggests that the major themes under discussion include measurement, consulting, and descriptive approach. We argue that these themes illustrate the degree of influence of the hegemonic politics relevant to emerging economics, as these themes predominantly concern economic growth and a capitalist context. This paper discusses trends and practices in the Brazilian literature on SEA and argues that the focus means that SEA avoids critical debates of the role of capitalist logics in an emerging economy concerning sustainability. We urge the Brazilian academy to understand the implications of its reifying agenda and engage, counter-hegemonically, in a social and political agenda beyond the hegemonic support of a particular set of capitalist interests.

The objective of this paper is to propose a systematic application of Lean Healthcare in the hospitalization activity in the medical clinic entry process.

The methodology used is established in three stages: the first aims to map the process in which the focus activity is inserted, using lean tools, as well as integrating the employees involved in the application. The second is the proposal to apply the systematic, together with the employees, using the A3 tool step by step. Finally, the third stage confirms the applied systematic, collecting the results and analyzing the initial situation with those reached.

As a result, improvements were made in the medical clinic entry process, such as reduced waiting time for patients, at approximately 53.8%, with a decrease in the standard deviation of the times – of approximately 79.14%, and displacement of those involved, of 72%, in addition to eliminating unnecessary activities for the process. Furthermore, the empirical results on the efficiency of this systemic application in medical clinic enable the replication of this proposal, generating a systematic.

Despite establishing a systematic proposal with real results, it is focused on only one application, due to time limitations, may generate a subjective evaluation of the systematic. Thus, for future research, it is recommended to expand this systemic application in other activities of different processes.

The practical implications of this paper are precisely related to the data obtained with the application made, developing a Lean Healthcare systematic not previously seen, which is strategic, systemic and has a roadmap to assist in its application and, in addition, brings with it practical results that prove their efficiency.

The social implications of this paper are presented in its empirical results, considering that the study hospital serves, in addition to its host city, 28 other smaller municipalities around it, improving the flow of processes, ensuring better management of the clinic doctor. In addition, the results can assist the processes flow of other medical clinics in hospitals around the world, especially at critical moments, such as pandemics or epidemics.

Due to the positive results obtained in the systematic application, this paper fills a gap identified in the literature, proposing a systematic application of Lean Healthcare that is systemic and strategic, in addition to including a roadmap and analysis of data applied in a medium-sized Brazilian hospital, presenting positive practical results exposed in the paper.