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- Creators: College of Health Solutions
This paper studies the effect of targeted observations on state and parameter estimates determined with Kalman filter data assimilation (DA) techniques. We first provide an analytical result demonstrating that targeting observations within the Kalman filter for a linear model can significantly reduce state estimation error as opposed to fixed or randomly located observations. We next conduct observing system simulation experiments for a chaotic model of meteorological interest, where we demonstrate that the local ensemble transform Kalman filter (LETKF) with targeted observations based on largest ensemble variance is skillful in providing more accurate state estimates than the LETKF with randomly located observations. Additionally, we find that a hybrid ensemble Kalman filter parameter estimation method accurately updates model parameters within the targeted observation context to further improve state estimation.
Methods: This study was a randomized, wait-list, control trial with assessments at baseline and post-intervention (week 4). Participants were asked to meditate using Calm for 10 minutes per day. A p value ≤0.05 was considered statistically significant.
Results: The majority of participants (n=19) stated using Calm helped them cope with the stress of PA school. The intervention group participated in meditation for an average of 76 minutes/week. There were significant differences in all outcomes for the intervention group (all p ≤0.06). There was a significant interaction between group and time factors in emotional exhaustion (p=.016) and depersonalization (p=.025).
Conclusions: Calm is a feasible way to reduce burnout in PA students. Our findings provide information that can be applied to the design of future studies.
The mission of EZ-Sit is to alleviate pain and increase comfort by creating a product that allows users to put their feet up when sitting for long periods of time. This product will connect to any single stem office chair with ease and will provide users with the ability to put their feet up whenever and wherever they work. Our goal is to empower individuals to pursue their goals without the hindrance of discomfort that comes with sitting for extended periods of time. At EZ-Sit we believe that no one’s productivity should be impeded due to the pain caused by a sedentary work life. We hope that this product will bring about physical well being in the workplace so individuals can focus on the day ahead of them. At EZ-Sit, our values include personal health, affordability, and productivity. Personal health is one of our core principles because we believe that people should not have to endure pain while sitting in order to get their work done. We value the integrity of the hard work that many people show while trying to pursue their dreams. We believe this strong drive for personal or professional growth should not have the consequences of pain. We also believe that our solution should be accessible to all regardless of financial situations. Our Vision at EZ-Sit is to create awareness around healthy sitting practices in addition to how these practices can boost productivity and can prevent burnout. We want to encourage people to take a stand about their sitting habits. Our analysis of the foot rest industry shows that this is not the first product of its kind, but the EZ-Sit is certainly the most accessible. Footrests exist all over the internet and in stores, but all of them are independent of the actual chair. These foot rests are one size-fits all and provide no physiological benefits to users who are either too short or too tall. In addition there are chairs on the market that have a built-in footrest. These chairs, however, are very expensive. This effectively excludes a whole portion of the market who do not have the means to invest in the product. We plan on marketing to young professionals who fall into the age range of eighteen to twenty-eight years old. We want to emphasize that taking care of your body while pursuing your goals is not something to be taken lightly. When we have a working model we plan on using social media platforms such as Instagram and TikTok to show how the product works as well as educate individuals around the health benefits of this product. Because this product is new to the market it is important for users to understand why it is different from other footrests in the market. Social media will also help to differentiate our product from the others by showing comparisons. We also plan on utilizing slogans that resonate without demographics such as “EZ-Sit, That’s It!” in order to grab the attention of our target audience.