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1. Left atrial appendage occlusion in chicken‐wing anatomies: Imaging assessment, procedural, and... 2021

   https://ncsu.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwpV1Lb9NAEF7RVEJcUHkIAgUtiAOHmsTPtVFVKUoDVAJOrcTNWnvXqtUkjppGRT3lJ3BFgj-XX8LMrnftNEUq4mJF9mb9mM87D898Q8gbGWZuWPDMCUMZOwFnmcNd4WGYA9SJiF2WifVgzlbH1MLcmMXe-2_Rwj4QLpbK_oN47aSwA36DkGELYobtrQT9WaqSRNV9g8-wpS2m4VR5Pl7M60RG7HdyBuuLSWy41JWJ4G9PSp0TdzTR3Yq4JerEZ6-0m0BiDpPkaQspq8UF3IxmrEXb1cw9nMOwyxKLtAw7rDl02DaEVeUh8kTrMlA9-bXc2FY6ZqtKRZbflcH7jaNKt5GHq_JM16YNZsgVMq7sXwZIn6LjvAMhxw1iq3O4efNMTiZgJevYxUjge1O1AyJeK3FLK6vNjKONtFIwWjzHTergp2z2MU_1VbS6QecO1-8Aay30IzDMwpbVMEJiwhtVkqa4zXPxDj-pXqP9VobEcHioDm2RbY8lMazW24PR0cevDXl0pLrt2as2DFl9r2fnXberNpyldd9LGU_HO-R-7fXQgUbvA3JHTh-Su1_qvI5H5CeCmGoQUwtiakFMyymtQbxa_tg_PUAEU4vg_d7pwXtaY5g2GN6jDYL3YLigBr_U4JdWBQUk0tXyl0EutchdLX8_JicfRsfDT07dNMTJfXAGHAb2dcGyXIBfEHgyKJJ-LnmcJUr5eILFgmN3sYwFSV8GMC6WQSLAcwbXIGK5_5TQqM-jHLxOkXAesCzKwGwv4kJwFopcJm6XvDbPOp1pUphU0397KQgkVQLpkl0jhbReLuapF_qJj1EI1iWv7GFY0fEzHZ_KagFjgjgBryNgfpc80dKzZ_Exa4GFcAVvlTj_fvrUoOrZ7Yc-J_eaF2qXdC7OF_IF6eAy_LLG5B8QY9s_

   Freixa, Xavier; Tzikas, Apostolos; Aminian, Adel; Flores‐Umanzor, Eduardo...

   Catheterization And Cardiovascular Interventions, Vol. 97, Issue 7.

   Objectives To describe imaging assessment, procedural and follow‐up outcome of patients undergoing left atrial appendage (LAA) occlusion (LAAO) using a “sandwich” technique. Background The presence... Read more

   Objectives To describe imaging assessment, procedural and follow‐up outcome of patients undergoing left atrial appendage (LAA) occlusion (LAAO) using a “sandwich” technique. Background The presence of a LAA with chicken wing morphology constitutes a challenge that sometimes requires specific occlusion strategies like the “sandwich” technique. However, procedural and follow‐up data focusing on this implanting strategy is scarce. Methods This multicenter study collected individual data from eight centers between 2012 and 2019. Consecutive patients with chicken‐wing LAAs defined as an early (<20 mm from the ostium) and severe bend (>90°) who underwent LAAO with Amplatzer devices and using the “sandwich” technique were included in the analysis. Results Overall, 190 subjects were enrolled in the study. Procedures were done with the Amulet device (85%) and the Amplatzer Cardiac Plug (15%). Successful implantation was achieved in 99.5% with ≤1 partial recapture in 80% of cases. Single (46.2%) and dual antiplatelet therapy (39.4%) were the most used antithrombotic therapies after LAAO. In‐hospital major adverse events rate was 1.5% with no deaths. One patient (0.5%) had cardiac tamponade requiring percutaneous drainage. With a mean follow‐up of 19.6 ± 14.8 months, the mortality and stroke rates were 7.7%/year and 2.5%/year, respectively. Follow‐up transesophageal echocardiography (TEE) at 2–3 months showed device‐related thrombosis in 2.8% and peri‐device leak ≥3 mm in 1.2% of patients. Conclusions In a large series of patients with chicken wing LAA anatomies undergoing LAAO, the use of the “sandwich” technique was feasible and safe. Preprocedural imaging was a key‐factor to determine specific measurements. Read less

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2. Kinematics of flight and the relationship to the vortex wake of a Pallas' long tongued bat... 2010

   https://ncsu.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwjV1Lb9QwEB6hSkhceAsWChqJSsAhlDwcx8e2akHiUiE4W-PXtrBKVs0uj3_fmWRT7QqEODiHJI6cmZHnG3v8DcBBVC5XiVymVGyyirTLKA-FLHOwOwlNrl3YXcyBg7_v4LP_OPwW3TupsKTlyHhZGzHdzyfHW9OtqiZKcI5VzIaDdLfrrtf5A0pu84QWG99ydg_OpxM6Q0qJFDLYzq0_HPgMBxKLLe7Gf_7Bfbi7wZl4NBrGA7gV24dwe6w8-fsR9J8YXQ5srT12CdNCYnSkNiADQryaMuQuLpe46oZ7PyQr9xf-pO9RehCeyxJ8_xoXXTvnl9r5OgZ0tMI3-GHBQuiWFzQn7IWE5LIlfPsYvp6dfjn5mG3qL2S-1GaVNRUxICAvpYxiakqXx0g8ezrnqHbBFbUqvXG1qXzimJyxn2-SSozhykIHHcqngPV7qj0D-GCIKu1qxwgoNSmQVsFHk8_g1aQYuxz5NazEJSw3y3Kzo9xmgJPOLJu_7GlQG7t1b6XkZC71g2bwZNTlzWcKnm8YnZgZnI7KvXkilNqL9ZKb42b7aA1VSTW-sKrKja10MJZSiHwRwv8Ugzfq2X8N9TncGRMM6ixX-7C3ulrHF7AnRvNyMNxrJYrq5A

   Wolf, Marta; Johansson, L Christoffer; von Busse, Rhea; Winter, York...

   Journal Of Experimental Biology, Vol. 213, Issue Pt 12, pp. 2142 - 2153.

   To obtain a full understanding of the aerodynamics of animal flight, the movement of the wings, the kinematics, needs to be connected to the wake left behind the animal. Here the detailed 3D wingbe... Read more

   To obtain a full understanding of the aerodynamics of animal flight, the movement of the wings, the kinematics, needs to be connected to the wake left behind the animal. Here the detailed 3D wingbeat kinematics of bats, Glossophaga soricina, flying in a wind tunnel over a range of flight speeds (1-7 m s(-1)) was determined from high-speed video. The results were compared with the wake geometry and quantitative wake measurements obtained simultaneously to the kinematics. The wingbeat kinematics varied gradually with flight speed and reflected the changes observed in the wake of the bats. In particular, several of the kinematic parameters reflected the differences in the function of the upstroke at low and high flight speeds. At lower flight speeds the bats use a pitch-up rotation to produce a backward flick which creates thrust and some weight support. At higher speeds this mechanism disappears and the upstroke generates weight support but no thrust. This is reflected by the changes in e.g. angle of attack, span ratio, camber and downstroke ratio. We also determined how different parameters vary throughout a wingbeat over the flight speeds studied. Both the camber and the angle of attack varied over the wingbeat differently at different speeds, suggesting active control of these parameters to adjust to the changing aerodynamic conditions. This study of the kinematics strongly indicates that the flight of bats is governed by an unsteady high-lift mechanism at low flight speeds and points to differences between birds and bats. Read less

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3. Wing Tracheation in Chrysopidae and Other Neuropterida (Insecta): A Resolution of the Confusion... 2017

   https://ncsu.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwjV1JSwMxFA5aEby4g1s1Bw96GDrJbBkphbZY9VSVuuClJJOE6WWmdAH7731J2loPopfhMZMJIXmT75vk5XsIXapIkEhz4UWRYl7IE-FxIqlZ5gA4kYwkQv5czEGLVHImqlIMyrJQdhfffNZcuNwj1I9rgK5graMNc4rK-PPjk7-cd2OasmV-PEC2eSah7_cAZFzdKxjklKEsmHR20PviSI6NITGZC1aD6WtWwNCqVqyINf6rybtoe04wcdN5xB5aU8U-2nQpJ2dg3amF9VFa6wB91vPGGzSjXssbGMAryx2RxIMCt_PRbFwOB5IrzAuJu4YwYivpMTQyz5Ljq4diDNMmv77BTWy2A5wz41JjKIzNmcKpWZPDNggavyqotmPvHKKXzm2vfe_NMzJ4ImDRxAs0AUZHdZpQLqJA0FSxQCUi0kEMMycjWcz8hLMgpDqkvpZCpiSVVIUZMKUkC44Qjn0eZ0DpZcp5mIhYACfSTEueRDJTKTlGVded_aHT2-ib_xToyr7pyj48v1gM3i8lTv6o4RRtUQPOhHqEnaHKZDRVVVQxw3xuXQquz60uXHut7hdCUMtz

   Breitkreuz, Laura C.V; Winterton, Shaun L; Engel, Michael S

   American Museum Novitates, Vol. 3890, Issue 3890, pp. 1 - 44.

   The wings of insects are one of their most prominent features and embody numerous characters and modifications congruent with the variety of their lifestyles. However, despite their evolutionary re... Read more

   The wings of insects are one of their most prominent features and embody numerous characters and modifications congruent with the variety of their lifestyles. However, despite their evolutionary relevance, homology statements and nomenclature of wing structures remain understudied and sometimes confusing. Early studies on wing venation homologies often assumed Neuropterida (the superorder comprising the orders Raphidioptera, Megaloptera, and Neuroptera: snakeflies, alderflies and dobsonflies, and lacewings) to be ancient among Pterygota, and therefore relied on their pattern of venation for determining groundplans for insect wing venation schemata and those assumptions reciprocally influenced the interpretation of lacewing wings. However, Neuropterida are in fact derived among flying insects and thus a reconsideration of their wings is crucial. The identification of the actual wing venation of Neuropterida is rendered difficult by fusions and losses, but these features provide systematic and taxonomically informative characters for the classification of the different clades within the group. In the present study, we review the homology statements of wing venation among Neuropterida, with an emphasis on Chrysopidae (green lacewings), the family in which the highest degree of vein fusion is manifest. The wing venation of each order is reviewed according to tracheation, and colored schemata of the actual wing venation are provided as well as detailed illustrations of the tracheation in select families. According to the results of our study of vein tracheation, new homology statements and a revised nomenclature for veins and cells are proposed. Read less

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