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    • Grow Your Blog Community

      With Wix Blog, you’re not only sharing your voice with the world, you can also grow an active online community. That’s why the Wix blog comes with a built-in members area - so that readers can easily sign easily up to become members of your blog. What can members do? Members can follow each other, write and reply to comments and receive blog notifications. Each member gets their own personal profile page that they can customize. Tip: You can make any member of your blog a writer so they can write posts for your blog. Adding multiple writers is a great way to grow your content and keep it fresh and diversified. Here’s how to do it: Head to your Member’s Page Search for the member you want to make a writer Click on the member’s profile Click the 3 dot icon ( ⠇) on the Follow button Select Set as Writer

    • Now You Can Blog from Everywhere!

      We’ve made it quick and convenient for you to manage your blog from anywhere. In this blog post we’ll share the ways you can post to your Wix Blog. Blogging from Your Wix Blog Dashboard On the dashboard, you have everything you need to manage your blog in one place. You can create new posts, set categories and more. To head to your Dashboard, open the Wix Editor and click on Blog > Posts. Blogging from Your Published Site Did you know that you can blog right from your published website? After you publish your site, go to your website’s URL and login with your Wix account. There you can write and edit posts, manage comments, pin posts and more! Just click on the 3 dot icon ( ⠇) to see all the things you can do. #bloggingtips #WixBlog

    • Design a Stunning Blog

      When it comes to design, the Wix blog has everything you need to create beautiful posts that will grab your reader's attention. Check out our essential design features. Choose from 8 stunning layouts Your Wix Blog comes with 8 beautiful layouts. From your blog's settings, choose the layout that’s right for you. For example, a tiled layout is popular for helping visitors discover more posts that interest them. Or, choose a classic single column layout that lets readers scroll down and see your post topics one by one. Every layout comes with the latest social features built in. Readers can easily share posts on social networks like Facebook and Twitter and view how many people have liked a post, made comments and more. Add media to your posts When creating your posts you can: Upload images or GIFs Embed videos and music Create galleries to showcase a media collection Customize the look of your media by making it widescreen or small and easily align media inside your posts. Hashtag your posts Love to #hashtag? Good news! You can add tags (#vacation #dream #summer) throughout your posts to reach more people. Why hashtag? People can use your hashtags to search through content on your blog and find the content that matters to them. So go ahead and #hashtag away!

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    • Home | DT Polet

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    • Research | DT Polet

      Overview Current Research Minimal Models Pitch-Translation Tradeoff Hypothesis Split-belt SLIP Reduced Gravity Locomotion Past Research Insect Wing Wetting Perching with Rapid Area Change Overview Broadly, my research uses mechanical principles to understand how animal form relates to function. Mechanical principles apply real constraints to organisms, which they manage and exploit through adaptation (evolution) and plasticity (development and learning). ​ Currently, I am studying how patterns in locomotion emerge from optimization processes. A prevailing hypothesis posits that organisms often choose locomotion patterns minimizing effort (metabolic energy expenditure), while fulfilling some relevant task- foraging, migrating or tracking. Through modelling and experiment, I have been putting this hypothesis to the test. e.g. Current Research Minimally-constrained model of legged locomotion Conceptual models in locomotion vary from extremely abstract (e.g. a single point mass on a stick) to extremely complex (e.g. high-fidelity OpenSim musculoskeletal models). I'm developing a model in the balance; sufficiently complex to make precise about behaviour ( walk-run transition speeds, preferred gaits) but simple enough to understand underlying mechanisms, and applicable to a broad range of organisms. predictions e.g. ​ I describe the latest model in . Consisting of four "pistons" connected to a rigid body, it accurately predicts walking at slow speeds and trotting at intermediate speeds the walk-trot transition speed for dogs. Importantly, this model has no springs, suggesting that elastic tendons are not a prerequisite for the economy of these strategies. PLOS Computational Biology and The Pitch-Translation Tradeoff Hypothesis Why do mammals trot? This "two-beat" gait involves expensive up-down oscillation of the body, that could be mitigated with distributed "four-beat" gaits. Yet trotting is the slow-running gait of choice for most mammals - though some, like giraffes, wildebeest and elephants, prefer not to trot. ​ I have been exploring whether the pitch moment of inertia resolves this conundrum. Pitching the body is expensive, and can be avoided with a trot. But if your body naturally pitching ( a giraffe's long neck), then you can use alternatives to trotting. resists e.g. ​ I have validated this theory in a modelling framework ( , ) and am looking to perform experiments and measurements to verify it in animals. preprint talk Split belt SLIP What does a bird have to do with split-belt treadmills? Seabirds fly along the surface of the ocean, where layers of wind move at different speeds. The birds take advantage of this velocity difference to , in a strategy called "dynamic soaring". A biped can similarly exploit the different belt speeds of a split-belt treadmill. We use a spring-loaded inverted pendulum (SLIP) model to determine what strategy extracts the most energy from a split belt treadmill– and whether this strategy is employed by humans extract energy from the wind Reduced gravity locomotion To determine if animals choose gaits to optimize metabolic energy expenditure, we can modify their environment to make the usual pattern suboptimal, while an unusual pattern becomes more economical. ​ Changing gravity is a pronounced environmental change with a reliable effect on an organism's mechanics. With simple conceptual models, we can make specific predictions about how humans and other animals will adapt for economical locomotion. ​ , , , JEB paper Dynamic Walking Poster Summary Video Longer Video Past Research Insect wing microstructure for efficient drop shedding Insect wings are covered in small bumps, hairs or scales called microstructures. These microstructures often have a particular but locally-variable orientation. Why? For my undergraduate independent research project, I showed that the orientation may promote efficient drop shedding. Published in PLOS One Wing rapid area change for fast perching Many birds go from flying at a high speed to landing on a small branch in fractions of a second. One way they may accomplish this is by quickly changing the frontal area of their wings. This "rapid area change" takes advantage of strange added mass effects, quickly shedding the mass of the air attached to the wing like propellant firing out of a rocket nozzle. ​ Published: , See also my J Fluid Mech . Bioinsp Biomim tutorial on added mass recovery

    • Publications | DT Polet

      Publications Google Scholar 2020 (in revision). Polet DT . The Murphy number: how pitch moment of inertia dictates quadrupedal walking and running energetics. Preprint: bioRxiv. 2020.04.24.060509 doi: 10.1101/2020.04.24.060509 ​ 2019. Polet DT, Bertram JEA. An inelastic quadrupedal model discovers four-beat walking, two-beat running, and pseudo-elastic actuation as energetically optimal. PLOS Computational Biology 15(11): e1007444 doi: 10.1371/journal.pcbi.1007444 2018. Polet DT, Schroeder RT, Bertram JEA. Reducing gravity takes the bounce out of running. Journal of Experimental Biology 221(3):jeb162024 doi: . 10.1242/jeb.162024 2015. Polet DT, Rival DE. Rapid area change in pitch-up manoeuvres of small perching birds. Bioinspiration and Biomimetics 20(6):066004 doi: . 10.1088/1748-3190/10/6/066004 2015. Polet DT , Flynn MR, Sperling FAH. A mathematical model to capture complex microstructure orientation on insect wings. PLOS ONE 10(10):e0138282 doi: 10.1371/journal.pone.0138282 2015. Polet DT , Rival DE, Weymouth GD. Unsteady dynamics of rapid perching manoeuvres. Journal of Fluid Mechanics 767:323-341 doi: 10.1017/jfm.2015.61 2013. Sutherland BR, Polet D, Campbell M. Gravity currents shoaling on a slope. Physics of Fluids 25(8): 086604 doi: 10.1063/1.4818440

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© 2020 Delyle Polet

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