Obtained results showed that activation of overexpressed cannabinoid CB1 receptors by endogenous cannabinoids may have a role in mediating the inhibitory effect of LFS on perforant path kindled seizures.

In this paper, an analytical approach and two numerical models have been developed to study an energy-harvesting device for micropower generation. This device uses wind energy to oscillate a cantilevered beam attached to a piezoelectric layer for generating electric energy output. The analytical approach and the first numerical model consider the fluid-structure interaction phenomenon in the harvester performance.The equations governing beam oscillations and airflow have been coupled to a set of four differential equations in the analytical approach. This set of equations has been solved to determine the beam deflection and the air pressure variation with time.The numerical methods have been conducted by employing a commercial software.The results of the analytical method and the first numerical model have been compared in different working conditions, and their credibility has been discussed. In the second numerical model, the electromechanical performance of the piezoelectric material has also been incorporated in the harvester device analysis. This model has been verified against experimental data for the output voltage and power of the device available in the literature. Finally, the effect of different geometrical parameters has been studied on the harvester performance, and suggestions have been made to improve the harvester efficiency. K E Y W O R D Sanalytical and numerical approaches, fluid-structure interaction, microscale, piezoelectric wind energy harvester | INTRODUCTIONMicroelectronic and micromechanical systems such as wireless sensor networks, biomedical implantable devices, and health monitoring systems have gained extensive interest for various applications in the research community and industrial field. 1,2 These systems normally use batteries to provide electrical energy required for their operation. However, the need for regularly replacing or recharging batteries makes their application costly and cumbersome. Due to these concerns, technologies capable of generating electrical power by harvesting environmental energy have been considered as a promising alternative for batteries, especially for autonomous devices operating for long periods with no human intervention, 3-6 and various types of such technologies have been developed for harvesting energy from different sources like solar power, thermal gradients, mechanical vibrations, and air and water flows. 7,8 Airflow or wind is a renewable and green energy source widely available in many situations where microsystems are installed like heating, ventilation and air conditioning systems, road and mining tunnels, and moving objects. In a comprehensive study, Watson et al. provided an expert view of emerging technologies within the wind energy sector considering their potential, challenges, and applications. For each technology, an

Background: The operating room is a high-risk environment in which practitioners with different educational backgrounds work together to provide safe care for surgical patients. The surgical team needs to use teamwork skills for safe performance and error prevention. Pediatric surgery is a very sensitive surgery type that needs special psychological skills. Objectives: This study aimed to assess surgical teams’ teamwork skills in pediatric surgery. Methods: This cross-sectional study was conducted on 154 surgical teams working in the pediatric operating rooms of two public hospitals in Shiraz, Iran, during the summer of 2021 using convenience sampling. The data were collected by the Mayo High-Performance Teamwork Scale. An operating room technologist collected the data by observing surgeries. Descriptive statistics were used for the analysis of the data. The data were analyzed using SPSS software (version 22). Results: The mean value of the teamwork score was 1.57 ± 0.20 (out of 2). The total teamwork score was 25.20 ± 3.31 (out of 32). The majority of items had a score of more than average. The team members had the highest score in recognizing a leader. The studied surgical teams had low scores in verbalizing their activities and repeating back the instructions. Conclusions: The overall teamwork score in the studied teams in the pediatric operating rooms was at an acceptable level. However, the studied teams did not do well in team communication behaviors. Interventions, such as educating, standardizing communications, and implementing a pediatric surgical safety checklist, can improve team communication skills.

No abstract