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Journal articles on the topic 'Rotation complexe'

Author: Grafiati

Published: 14 June 2025

Last updated: 2 August 2025

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1

Chung, Chooryung J., Yoon-Jeong Choi, In-Sil Kim, Jong-Ki Huh, Hyung-Gon Kim, and Kyung-Ho Kim. "Reconstitutions totales des articulations temporo-mandibulaires par des implants alloplastiques combinées à un traitement d’orthodontie dans un cas de résorption condylienne idiopathique." L'Orthodontie Française 83, no. 3 (2012): 225–38. http://dx.doi.org/10.1051/orthodfr/2012022.

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Ce rapport de cas montre le traitement réussi d’un adulte présentant une classe II squelettique avec une béance secondaire à la résorption idiopathique des condyles mandibulaires. La reconstruction totale des articulations temporo-mandibulaires par des implants alloplastiques et la rotation dans le sens anti-horaire du complexe maxillo-mandibulaire, associées à un traitement d’orthodontie, ont permis d’obtenir un résultat satisfaisant avec une amélioration esthétique et fonctionnelle maximale.

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Kazachkov, Ivan V. "Stability Analysis for Complex Rotational Flow." WSEAS TRANSACTIONS ON APPLIED AND THEORETICAL MECHANICS 16 (August 10, 2021): 62–72. http://dx.doi.org/10.37394/232011.2021.16.7.

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Based on the earlier developed mathematical model of the complex flow due to the double rotations in two perpendicular directions, the stability analysis is performed in the paper. The Navier-Stokes equations are derived in the coordinate system rotating around the two perpendicular different axes, the vertical one of them is arranged on some distance from the other axis of rotation, the horizontal axis is directed along the tangential line to the circle of the vertical rotation. The two centrifugal and Coriolis forces create the unique features in high oscillating flow, with localities of the

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Messina, A. "Rotation chirurgicale vascularisée du complexe bi-articulaire trapézoïde-trapézométacarpien pour le traitement de la rhizarthrose grave du pouce." Chirurgie de la Main 19, no. 2 (2000): 134–40. http://dx.doi.org/10.1016/s1297-3203(00)73471-8.

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Heinen, Thomas, Damian Jeraj, Pia Vinken, and Konstantinos Velentzas. "Rotational Preference in Gymnastics." Journal of Human Kinetics 33, no. 1 (2012): 33–43. http://dx.doi.org/10.2478/v10078-012-0042-4.

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Rotational Preference in GymnasticsIn gymnastics, most skills incorporate rotations about one or more body axes. At present, the question remains open if factors such as lateral preference and/or vestibulo-spinal asymmetry are related to gymnast's rotational preference. Therefore, we sought to explore relationships in gymnast's rotation direction between different gymnastic skills. Furthermore, we sought to explore relationships between rotational preference, lateral preference, and vestibulo-spinal asymmetry. In the experiment n = 30 non-experts, n = 30 near-experts and n = 30 experts complet

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Subramaniam, Jeevithra Dewi, Toshio Nishino, Kazuma Yasuhara, and Gwénaël Rapenne. "Synthesis and Dynamic Behavior of Ce(IV) Double-Decker Complexes of Sterically Hindered Phthalocyanines." Molecules 29, no. 4 (2024): 888. http://dx.doi.org/10.3390/molecules29040888.

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Phthalocyanines and their double-decker complexes are interesting in designing rotative molecular machines, which are crucial for the development of molecular motors and gears. This study explores the design and synthesis of three bulky phthalocyanine ligands functionalized at the α-positions with phenothiazine or carbazole fragments, aiming to investigate dynamic rotational motions in these sterically hindered molecular complexes. Homoleptic and heteroleptic double-decker complexes were synthesized through the complexation of these ligands with Ce(IV). Notably, CeIV(Pc2)2 and CeIV(Pc3)2, both

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Bubenchikov, M. A., A. M. Bubenchikov, and D. V. Mamontov. "ROTATIONS AND VIBRATIONS OF FULLERENES IN THE MOLECULAR COMPLEX C20@C80." Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika, no. 71 (2021): 35–48. http://dx.doi.org/10.17223/19988621/71/4.

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The aim of this work is to apply classical mechanics to a description of the dynamic state of C20@C80 diamond complex. Endohedral rotations of fullerenes are of great interest due to the ability of the materials created on the basis of onion complexes to accumulate energy at rotational degrees of freedom. For such systems, a concept of temperature is not specified. In this paper, a closed description of the rotation of large molecules arranged in diamond shells is obtained in the framework of the classical approach. This description is used for C20@C80 diamond complex. Two different problems o

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Nemes, A., Z. Kovács, Á. Kormányos, et al. "Left ventricular apical rotation is associated with mitral annular function in healthy subjects. Results from the three-dimensional speckle-tracking echocardiographic MAGYAR-Healthy Study." Physiology International 107, no. 1 (2020): 145–54. http://dx.doi.org/10.1556/2060.2020.00002.

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AbstractIntroductionLeft ventricular (LV) twist is considered an essential part of LV function due to oppositely directed LV basal and apical rotations. Several factors could play a role in determining LV rotational mechanics in normal circumstances. This study aimed to investigate the relationship between LV rotational mechanics and mitral annular (MA) size and function in healthy subjects.MethodsThe study comprised 118 healthy adult volunteers (mean age: 31.5 ± 11.8 years, 50 males). All subjects had undergone complete two-dimensional (2D) Doppler echocardiography and three-dimensional speck

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Falduzzi, Paola, Walid Salem, and Pierre-Michel Dugailly. "Étude comparative de la raideur entre le complexe temporomandibulaire en ouverture buccale et la rotation axiale du rachis cervical en position de flexion." Mains Libres 35, no. 3 (2018): 9–17. https://doi.org/10.55498/mainslibres.2018.35.3.0009.

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Liakh, Valeriia, and Rony Keppens. "Rotational Flows in Solar Coronal Flux Rope Cavities." Astrophysical Journal Letters 953, no. 1 (2023): L13. http://dx.doi.org/10.3847/2041-8213/acea78.

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Abstract We present a 2.5D magnetohydrodynamic simulation of a systematically rotating prominence inside its coronal cavity using the open-source MPI-AMRVAC code. Our simulation starts from a nonadiabatic, gravitationally stratified corona, permeated with a sheared arcade magnetic structure. The flux rope (FR) is formed through converging and shearing footpoints driving, simultaneously applying randomized heating at the bottom. The latter induces a left–right asymmetry of temperature and density distributions with respect to the polarity inversion line. This asymmetry drives flows along the lo

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Falduzzi, Paola, Walid Salem, and Pierre-Michel Dugailly. "Étude comparative de la raideur entre le complexe temporo-mandibulaire en ouverture buccale et la rotation axiale du rachis cervical en position de flexion." Mains Libres 35, no. 3 (2018): 6. https://doi.org/10.55498/mainslibres.2018.35.3.0006.

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Dror, Itiel E. "Visual Mental Rotation: Different Processes Used by Pilots." Proceedings of the Human Factors Society Annual Meeting 36, no. 18 (1992): 1368–72. http://dx.doi.org/10.1177/154193129203601802.

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Air Force pilots and control subjects were tested on a visual “mental rotation” task. Nine of the 16 pilots, as well as all of the 16 control subjects, required more time to rotate greater angular distances. The performance of the other 7 pilots was unique: their response time did not increase with greater angular rotations. The results suggest that visual mental rotation can be accomplished by at least two different processes. One process involves incremental object rotations in a multi-step mapping –like an actual physical rotation of an object– going through intermediate stages. This proces

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Rao, T. C. K. "Electromagnetic-wave propagation over a rotating dielectric cylinder." Canadian Journal of Physics 64, no. 11 (1986): 1517–21. http://dx.doi.org/10.1139/p86-270.

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The problem of guided electromagnetic-wave propagation over a rotating dielectric cylinder is solved by a boundary-value method assuming that the speed of rotation is much smaller than the velocity of light. From a numerical solution of the complex characteristic equation, the variation of the attenuation and the phase constants and their dependence on the speed of rotation are studied. The rotational process appears to divide the radial propagation constant inside a stationary cylinder into two waves with different propagation constants. The modes with positive and negative indices in the cir

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Akamatsu, Masato, Nao Kubo, and Mitsuo Iwamoto. "Magnetothermal Rayleigh-Benard Convection of Paramagnetic Oxygen Gas in a Rotating Shallow Vertical Cylindrical Container." Information 27, no. 3 (2024): 149–67. http://dx.doi.org/10.47880/inf2703-01.

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We carried out complete transient three-dimensional numerical computations to clarify the heat transfer rate characteristics of magnetothermal Rayleigh-Benard convection of paramagnetic oxygen gas in a rotating shallow vertical cylindrical container. When the container without rotation was fixed at the location where (gradB2)Z became minimum on the center line, the average Nusselt number of magnetothermal Rayleigh-Benard convection increased in comparison with that of Rayleigh-Benard convection. When the container with rotation was fixed at the same location, the average Nusselt number of rota

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Alaçam, Aylin, Ulaş Öz, and Kaan Orhan. "Effectiveness of clear aligner therapy in rotational tooth movement." Balkan Journal of Dental Medicine 28, no. 3 (2024): 208–11. http://dx.doi.org/10.5937/bjdm2403208a.

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Background/Aim: The present study investigates the effectiveness of Invisalign (Align Technology, San Jose, Calif) in rotational tooth movement. The aim of this research is to assess the accuracy of the predicted rotational movements in the digital treatment plan (Clincheck, Align Technology, San Jose, CA) compared to the actual achieved results following treatment completion. Material and Methods: A retrospective analysis was conducted on a cohort of orthodontic patients who underwent clear aligner therapy for rotational tooth movements. Digital treatment plans and 3D models were used to pred

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Park, Sung-Jae, Sung-Jae Lee, Wen-Ming Chen, et al. "Computer-Assisted Optimization of the Acetabular Rotation in Periacetabular Osteotomy Using Patient’s Anatomy-Specific Finite Element Analysis." Applied Bionics and Biomechanics 2018 (2018): 1–11. http://dx.doi.org/10.1155/2018/9730525.

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Periacetabular osteotomy (PAO) is a complex surgical procedure to restore acetabular coverage in the dysplastic hip, and the amount of acetabular rotation during PAO plays a key role. Using computational simulations, this study assessed the optimal direction and amount of the acetabular rotation in three dimensions for a patient undergoing PAO. Anatomy-specific finite element (FE) models of the hip were constructed based on clinical CT images. The calculated acetabular rotation during PAO were 9.7°, 18°, and 4.3° in sagittal, coronal, and transverse planes, respectively. Based on the actual ac

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Lauzier, Lydiane, Jacques Abboud, François Nougarou, and Louis-David Beaulieu. "Kinesthetic illusions induced by muscle tendon vibration: The orientation of the vibration motor as a new methodological factor?" PLOS One 20, no. 6 (2025): e0325737. https://doi.org/10.1371/journal.pone.0325737.

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Purpose/aim To investigate the impact of changing the rotational orientation of the vibrating motor on kinesthestic illusions. Materials and methods Twenty healthy individuals received vibration over the wrist flexor muscles of dominant and non-dominant sides (80 Hz, 1 mm, 10 seconds) using four conditions (3 trials/conditions) defined by the rotational direction of the vibrator’s eccentric rotating mass according to the anatomical position: (1) proximodistal, (2) distoproximal, (3) mediolateral and (4) lateromedial. Non-parametric statistical analyses were used to compare illusion characteris

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Lu, Wenxin, Tiantian Mu, Yuehong Zhang, et al. "A Photocontrolled Molecular Rotor Based on Azobenzene-Strapped Mixed (Phthalocyaninato)(Porphyrinato) Rare Earth Triple-Decker." Molecules 30, no. 2 (2025): 326. https://doi.org/10.3390/molecules30020326.

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Effectively regulating the rotary motions of molecular rotors through external stimuli poses a tremendous challenge. Herein, a new type of molecular rotor based on azobenzene-strapped mixed (phthalocyaninato)(porphyrinato) rare earth triple-decker complex Azo-1 is reported. Electronic absorption and 1H NMR spectra manifested the reversible isomerization of the rotor Azo-1 between the trans configuration and the cis configuration. The rotational behavior of phthalocyanine rotator in two configurations were investigated by VT-1H NMR experiments, and the results indicated that the phthalocyanine

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Pass, Emily K., Jennifer G. Winters, David Charbonneau, Jonathan M. Irwin, and Amber A. Medina. "Active Stars in the Spectroscopic Survey of Mid-to-late M Dwarfs within 15 pc." Astronomical Journal 166, no. 1 (2023): 16. http://dx.doi.org/10.3847/1538-3881/acd6a2.

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Abstract We present results from the volume-complete spectroscopic survey of 0.1–0.3 M ⊙ M dwarfs within 15 pc. This work discusses the active sample without close binary companions, providing a comprehensive picture of these 123 stars with Hα emission stronger than −1 Å. Our analysis includes rotation periods (including 31 new measurements), Hα equivalent widths, rotational broadening, inclinations, and radial velocities, determined using high-resolution, multiepoch spectroscopic data from the TRES and CHIRON spectrographs supplemented by photometry from TESS and MEarth. Using this volume-com

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Groh, Jose H. "Effects of fast rotation on the wind of Luminous Blue Variables." Proceedings of the International Astronomical Union 6, S272 (2010): 56–61. http://dx.doi.org/10.1017/s1743921311009975.

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AbstractWhile theoretical studies have long suggested a fast-rotating nature of Luminous Blue Variables (LBVs), observational confirmation of fast rotation was not detected until recently. Here I discuss the diagnostics that have allowed us to constrain the rotational velocity of LBVs: broadening of spectral lines and latitude-dependent variations of the wind density structure. While rotational broadening can be directly detected using high-resolution spectroscopy, long-baseline near-infrared interferometry is needed to directly measure the shape of the latitude-dependent photosphere that form

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Farhan, Muhammad, Tobias Rudolph, Karl Kratz, and Andreas Lendlein. "Torsional Fiber Actuators from Shape-memory Polymer." MRS Advances 3, no. 63 (2018): 3861–68. http://dx.doi.org/10.1557/adv.2018.621.

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ABSTRACT:Humanoid robots, prosthetic limbs and exoskeletons require soft actuators to perform their primary function, which is controlled movement. In this work, we explored whether crosslinked poly[ethylene-co-(vinyl acetate)] (cPEVA) fibers, with different vinyl acetate (VA) content can serve as torsional fiber actuators, exhibiting temperature controlled reversible rotational changes. Broad melting transitions ranging from 50 to 90 °C for cPEVA18-165 or from 40 to 80 °C for cPEVA28-165 fibers in combination with complete crystallization at temperatures around 10 °C make them suitable actuat

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Vimond-Laboudigue, A., and R. Prost. "Etude comparee des complexes hectorite- et vermiculite-decylammonium a l'aide des spectrometries infrarouge et raman." Clay Minerals 30, no. 4 (1995): 337–52. http://dx.doi.org/10.1180/claymin.1995.030.4.07.

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ResumeL'arrangement des cations décylammonium échangés entre les feuillets de la vermiculite et de l'hectorite a été précisé à l'aide des spectrométries infrarouge (IR) et Raman. Les expériences de deutération et de dichroïsme faites par spectrométrie IR montrent que l'axe C3 du groupe NH3+ est confondu avec l'axe de la cavité hexagonale sous-jacente, dans le cas de la vermiculite comme dans celui de l'hectorite, et que dans la vermiculite, les groupes NH sont engagés dans des liaisons hydrogène avec les atomes d'oxygène des tétraèdres substitués. La spectrométrie Raman permet de comparer l'ar

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Malézieux, Eric, Damien Beillouin, and David Makowski. "Mieux nourrir la planète : diversifier les cultures pour construire des systèmes alimentaires durables." Perspective, no. 58 (2022): 1–4. http://dx.doi.org/10.19182/perspective/36931.

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Aujourd’hui, d’importantes mutations de l’agriculture mondiale sont nécessaires pour produire suffisamment d’aliments sains pour tous, tout en préservant la qualité des terres, de l’air et de l’eau et en sauvegardant la biodiversité. Mais produire suffisamment et préserver en même temps l’environnement est une équation particulièrement complexe à résoudre. Les pratiques agroécologiques, dont un principe essentiel est l’usage de la biodiversité cultivée, constituent une voie prometteuse pour assurer ces mutations. De nombreuses preuves qualitatives et quantitatives montrent leur efficacité sur

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Jouvent, R., C. Vindreau, M. Montreuil, C. Bungener, and D. Widlocher. "La clinique polydimensionnelle de l’humeur dépressive. Nouvelle version de l’échelle EHD." Psychiatry and Psychobiology 3, no. 4 (1988): 245–53. http://dx.doi.org/10.1017/s0767399x00001991.

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RésuméDans le domaine de la recherche en psychiatrie, un nouvel intérêt paraît se dessiner pour les émotions. Notre travail s’inscrit dans ce courant et relate les résultats obtenus avec une échelle polydimensionnelle d'évaluation de l’humeur dépressive. Une analyse en composantes principales (ACP) a été pratiquée sur la matrice de corrélations des 18 items de l'échelle administrée à 70 patients hospitalisés présentant un épisode dépressif majeur. Cinq facteurs se dégagent, ayant un sens clinique et statistique avant comme après rotation Vanmax: émoussement affectif, tristesse hyperexpressive/

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Khaffou, Moulouda, Mohamed Raji, and Moha El-Ayachi. "Apport d’analyse des données géophysique et géodésique sur L’évolution dynamique du Système de Rift Est Africain." SHS Web of Conferences 175 (2023): 01021. http://dx.doi.org/10.1051/shsconf/202317501021.

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Le Système de Rift Est Africain SREA constitue une région d’intérêt géologique et géodynamique majeure, offrant des opportunités uniques pour étudier les processus de rift continental. Cette étude vise à caractériser le contexte géologique et géodynamique du SREA en utilisant des données géomatiques et géophysiques. Les données géomatiques ont permis d’identifier les formations rocheuses, les failles actives et les caractéristiques topographiques associées, fournissant ainsi une compréhension approfondie de la région d’étude. En complément, des techniques géophysiques avancées ont été appliqué

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Slătineanu, Laurenţiu, Oana Dodun, Margareta Coteaţă, Gheorghe Nagîţ, and Irina Beşliu. "Simplified Version of Polymer Rotational Molding Manufacturing Method." Key Engineering Materials 699 (July 2016): 97–103. http://dx.doi.org/10.4028/www.scientific.net/kem.699.97.

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Rotational molding is a manufacturing method which supposes the rotation of the mold, during the solidification of the liquid phase material, so that finally a part having a hollow could be obtained. The method could be applied in manufacturing of metallic and nonmetallic parts. Usually, the equipment for rotational molding ensures slow speed rotating of the mold around two axes placed perpendicularly each other and this fact led to relatively complex equipment for achieving rotational molding. The capacity of the liquid material to entirely cover the internal walls of the mold depends essenti

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Araújo, Alexandre, and Adriana Valio. "Dependence of Stellar Differential Rotation on Effective Temperature and Rotation: An Analysis from Starspot Transit Mapping." Astrophysical Journal 956, no. 2 (2023): 141. http://dx.doi.org/10.3847/1538-4357/acfc1b.

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Abstract Stellar rotation is crucial for studying stellar evolution, since it provides information about age, angular momentum transfer, and magnetic fields of stars. In the case of the Sun, due to its proximity, detailed observation of sunspots at various latitudes and longitudes allows a precise estimation of the solar rotation period and its differential rotation. Here, we present for the first time an analysis of stellar differential rotation using starspot transit mapping as a means of detecting differential shear in solar-type and M stars. The aim of this study is to investigate the rela

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Nemes, Attila, Barbara Bordács, Nóra Ambrus, and Csaba Lengyel. "Longitudinal Systolic Excursion of the Mitral Annular Plane and Left Ventricular Rotational Mechanics Are Associated in Healthy Adults—Three-Dimensional Speckle-Tracking Echocardiography-Derived Insights from the MAGYAR-Healthy Study." Journal of Clinical Medicine 14, no. 9 (2025): 3201. https://doi.org/10.3390/jcm14093201.

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Introduction: The rotational mechanics of the left ventricle (LV) play a significant role in maintaining systemic circulation. In clinical practice, three-dimensional speckle-tracking echocardiography (3DSTE) is one of the first methods to be used that is suitable for routine, non-invasive investigations, even in healthy individuals, allowing the conduction of extensive but easily feasible tests. In routine clinical practice, mitral annular plane systolic excursion (MAPSE) is used as an easy-to-implement parameter to judge the systolic longitudinal function of the LV; its prognostic significan

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YASUDA, TAKAHIRO, and YASUNARI TAKANO. "THE STUDY OF THE UNSTEADY FLUID-DYNAMIC FORCES ACTING ON AN AUTO ROTATING ELLIPTIC CYLINDER." Modern Physics Letters B 19, no. 28n29 (2005): 1675–78. http://dx.doi.org/10.1142/s0217984905010190.

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When a thin flat pate is released in the still air, the plate may fall aslant and automatically set into a rotational motion. This phenomenon is called autorotation. In this state, the unsteady fluid-dynamic forces act on the plate due to the vortex shedding and the rotation of the body. In this study, we focused on the auto-rotating phenomenon of an elliptic cylinder and investigated the effect of the cylinder rotation on the unsteady fluid-dynamic forces by the comparison between the result of the complex velocity potential theory and the one of numerical simulation. It was found that the lo

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Bourdillon, Alain, Guy Ropars, Stéphane Gaffet, and Albert Le Floch. "Opposite sense ground rotations of a pair of Cavendish balances in earthquakes." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 471, no. 2184 (2015): 20140997. http://dx.doi.org/10.1098/rspa.2014.0997.

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Among the intermingled translational and rotational effects occurring in earthquakes, the translational effects are rather well understood. Recent experiments have been performed to investigate the rotational effects which have been observed for centuries that remain intriguing and less well understood. Although rotational seismology is of interest in a wide range of disciplines, rotational ground motions remain challenging to detect directly, especially their sense of rotation. To avoid a possible random response of a single balance, we locate two Cavendish balances in an ultra-low-noise labo

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Chen, Shile, Ziyue Wang, and Pengfei Zhuang. "Equal-time kinetic equations in a rotational field *." Chinese Physics C 46, no. 2 (2022): 024108. http://dx.doi.org/10.1088/1674-1137/ac39fd.

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Abstract We investigate quantum kinetic theory for a massive fermion system under a rotational field. From the Dirac equation in rotating frame we derive the complete set of kinetic equations for the spin components of the 8- and 7-dimensional Wigner functions. While the particles are no longer on a mass shell in the general case due to the rotation–spin coupling, there are always only two independent components, which can be taken as the number and spin densities. With help from the off-shell constraint we obtain the closed transport equations for the two independent components in the classic

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Ivanenko, Y. P., I. Viaud-Delmon, A. Sémont, V. S. Gurfinkel, and A. Berthoz. "Eye movements during torso rotations in labyrinthine-defective subjects." Journal of Vestibular Research 9, no. 6 (1999): 401–12. http://dx.doi.org/10.3233/ves-1999-9602.

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The aim of this study was to examine whether the chronic loss of vestibular function modifies perceptual and oculomotor responses during torso rotations in darkness. Subjects (4 patients with complete vestibular loss and 7 healthy volunteers) were seated on a rotating chair. Stimuli consisted of sinusoidal chair rotations ( ± 30 ∘ , 0.1 Hz and 0.011 Hz). We used 2 conditions: space stationary head (neck stimulation) and space stationary head and shoulders (torso stimulation). Horizontal eye deviations and slow component of eye movements were analysed. The results showed that eye movements and

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Timofeev, V. B., and T. E. Timofeeva. "Unipolar induction and relative rotation." Vestnik of North-Eastern Federal University 21, no. 4 (2025): 65–72. https://doi.org/10.25587/2222-5404-2024-21-4-65-72.

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The recent failure of attempts to extract the rotational energy of the Earth by unipolar induction methods suggests a need for further research on unipolar induction. It is implied by the special relativity theory that the interaction of electric charge and magnet in unaccelerated motion depends only on the relative rate. The electromotive force of unipolar induction in a complete electrical circuit depends only on the relative rotation of the magnet and the connected through slide contacts voltmeter. To ascertain if the electric field resulting from the magnet’s rotation in an inertial frame

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Dickman, J. David, and Dora E. Angelaki. "Vestibular Convergence Patterns in Vestibular Nuclei Neurons of Alert Primates." Journal of Neurophysiology 88, no. 6 (2002): 3518–33. http://dx.doi.org/10.1152/jn.00518.2002.

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Sensory signal convergence is a fundamental and important aspect of brain function. Such convergence may often involve complex multidimensional interactions as those proposed for the processing of otolith and semicircular canal (SCC) information for the detection of translational head movements and the effective discrimination from physically congruent gravity signals. In the present study, we have examined the responses of primate rostral vestibular nuclei (VN) neurons that do not exhibit any eye movement-related activity using 0.5-Hz translational and three-dimensional (3D) rotational motion

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Wylie, D. R., and B. J. Frost. "Responses of pigeon vestibulocerebellar neurons to optokinetic stimulation. II. The 3-dimensional reference frame of rotation neurons in the flocculus." Journal of Neurophysiology 70, no. 6 (1993): 2647–59. http://dx.doi.org/10.1152/jn.1993.70.6.2647.

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1. The complex spike activity of Purkinje cells in the flocculus in response to rotational flowfields was recorded extracellularly in anesthetized pigeons. 2. The optokinetic stimulus was produced by a rotating “planetarium projector.” A light source was placed in the center of a tin cylinder, which was pierced with numerous small holes. A pen motor oscillated the cylinder about its long axis. This apparatus was placed above the bird's head and the resultant rotational flow-field was projected onto screens that surrounded the bird on all four sides. The axis of rotation of the planetarium coul

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Tchelidze, Tamara, and Bernhard J. M. Hess. "Noncommutative Control in the Rotational Vestibuloocular Reflex." Journal of Neurophysiology 99, no. 1 (2008): 96–111. http://dx.doi.org/10.1152/jn.00804.2007.

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To investigate the role of noncommutative computations in the oculomotor system, three-dimensional (3D) eye movements were measured in seven healthy subjects using a memory-contingent vestibulooculomotor paradigm. Subjects had to fixate a luminous point target that appeared briefly at an eccentricity of 20° in one of four diagonal directions in otherwise complete darkness. After a fixation period of ∼1 s, the subject was moved through a sequence of two rotations about mutually orthogonal axes in one of two orders (30° yaw followed by 30° pitch and vice versa in upright and 30° yaw followed by

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Tiongco, Maria A., Enrico Vesperini, and Anna Lisa Varri. "Early dynamical evolution of rotating star clusters in a tidal field." Monthly Notices of the Royal Astronomical Society 512, no. 2 (2022): 1584–97. http://dx.doi.org/10.1093/mnras/stac643.

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ABSTRACT In order to explore how the early internal rotational properties of star clusters are affected by the external potential of their host galaxies, we have run a suite of N-body simulations following the early dynamical evolution and violent relaxation of rotating star clusters embedded in a tidal field. Our study focuses on models for which the cluster’s rotation axis has a generic orientation relative to the torque of the tidal field. The interaction between the violent relaxation process, angular momentum of the cluster, and the external torque creates a complex kinematic structure wi

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Yong, Zheng, Juanmian Lei, and Jintao Yin. "The Generation Mechanism of the Side Force and Yawing Moment of a Rotating Missile with Wrap-Around Fins." Aerospace 11, no. 9 (2024): 765. http://dx.doi.org/10.3390/aerospace11090765.

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The rotation of a missile generates a side force perpendicular to the plane containing the attack angle and produces a yawing moment that tilts the body out of the plane, significantly affecting the flight stability of rotating missiles. The non-planar asymmetry of the wrap-around-fin rotating missile determines its more complex rotational effects. This study utilizes the dual time-step method to solve the unsteady Navier–Stokes equations, investigating the characteristics of the side force and yawing moment of the wrap-around-fin rotating missile under supersonic conditions and uncovering the

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McGlinchey, Michael J., and Kirill Nikitin. "Palladium-Catalysed Coupling Reactions En Route to Molecular Machines: Sterically Hindered Indenyl and Ferrocenyl Anthracenes and Triptycenes, and Biindenyls." Molecules 25, no. 8 (2020): 1950. http://dx.doi.org/10.3390/molecules25081950.

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Pd-catalysed Stille and Suzuki cross-couplings were used to prepare 9-(3-indenyl)-, 6, and 9-(2-indenyl)-anthracene, 7; addition of benzyne led to the 9-Indenyl-triptycenes, 8 and 9. In 6, [4 + 2] addition also occurred to the indenyl substituent. Reaction of 6 through 9 with Cr(CO)6 or Re2(CO)10 gave their M(CO)3 derivatives, where the Cr or Re was complexed to a six- or five-membered ring, respectively. In the 9-(2-indenyl)triptycene complexes, slowed rotation of the paddlewheel on the NMR time-scale was apparent in the η5-Re(CO)3 case and, when the η6-Cr(CO)3 was deprotonated, the resulting

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Nemes, Attila, Árpád Kormányos, Nóra Ambrus, and Csaba Lengyel. "Insights into the Associations Between Systolic Left Ventricular Rotational Mechanics and Left Atrial Peak Reservoir Strains in Healthy Adults from the MAGYAR-Healthy Study." Biomedicines 12, no. 11 (2024): 2515. http://dx.doi.org/10.3390/biomedicines12112515.

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Introduction: In systole, when the left ventricle (LV) twists, the left atrium (LA) behaves like a reservoir, having a special wall contractility pattern opposite to that of the LV wall. Accordingly, the objective of the present study was to investigate the associations between LV rotational mechanics and LA peak (reservoir) strains as assessed simultaneously by three-dimensional speckle-tracking echocardiography (3DSTE) under healthy conditions. Methods: In the present study, 157 healthy adults (mean age: 33.2 ± 12.7 years, 73 men) were involved. Complete two-dimensional Doppler echocardiogra

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Tso, Hanna L., Jason Young, Charline S. Boente, and Chi Wah Yung. "The Impact of Away Rotations on the Ophthalmology Residency Match." Journal of Academic Ophthalmology 13, no. 01 (2021): e19-e25. http://dx.doi.org/10.1055/s-0041-1723849.

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Abstract Background The ophthalmology residency match is highly competitive, and fourth-year medical students frequently complete away rotations at other institutions hoping to increase their chances of matching. Objective The study aimed to determine the impact of away rotations on the ophthalmology residency selection process and to provide recommendations to faculty for counseling fourth-year medical students as they prepare for the ophthalmology match. Methods A survey was sent in June 2020 to program directors (PDs), medical student educators (MSEs), and residents at 119 accredited ophtha

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CHAN, ANDRE S., PETER A. DEWEY, ANTONY JAMESON, CHUNLEI LIANG, and ALEXANDER J. SMITS. "Vortex suppression and drag reduction in the wake of counter-rotating cylinders." Journal of Fluid Mechanics 679 (May 12, 2011): 343–82. http://dx.doi.org/10.1017/jfm.2011.134.

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The flow over a pair of counter-rotating cylinders is investigated numerically and experimentally. It is demonstrated that it is possible to suppress unsteady vortex shedding for gap sizes from one to five cylinder diameters, at Reynolds numbers from 100 to 200, expanding on the more limited work by Chan & Jameson (Intl J. Numer. Meth. Fluids, vol. 63, 2010, p. 22). The degree of unsteady wake suppression is proportional to the speed and the direction of rotation, and there is a critical rotation rate where a complete suppression of flow unsteadiness can be achieved. In the doublet-like co

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Kristoffersen, Reidar, and Helge I. Andersson. "Direct simulations of low-Reynolds-number turbulent flow in a rotating channel." Journal of Fluid Mechanics 256 (November 1993): 163–97. http://dx.doi.org/10.1017/s0022112093002757.

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Direct numerical simulations of fully developed pressure-driven turbulent flow in a rotating channel have been performed. The unsteady Navier–Stokes equations were written for flow in a constantly rotating frame of reference and solved numerically by means of a finite-difference technique on a 128 × 128 × 128 computational mesh. The Reynolds number, based on the bulk mean velocity Um and the channel half-width h, was about 2900, while the rotation number Ro = 2|Ω|h/Um varied from 0 to 0.5. Without system rotation, results of the simulation were in good agreement with the accurate reference sim

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Goetz, Jessica E., Nathan P. Davidson, M. James Rudert, Nicole Szabo, Matthew D. Karam, and Phinit Phisitkul. "Biomechanical Comparison of Syndesmotic Repair Techniques During External Rotation Stress." Foot & Ankle International 39, no. 11 (2018): 1345–54. http://dx.doi.org/10.1177/1071100718786500.

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Background: The purpose of this study was to compare mechanical behavior of conventional syndesmosis fixation devices with new anatomic repair techniques incorporating various repair augmentations to determine which approach would return rotational ankle mechanics closer to those of an intact ankle. Methods: Ten pairs of fresh-frozen through-the-knee cadaveric lower limbs were subjected to 7.5 Nm of external rotation torque while under 750 N of axial compression. After testing specimens intact and with the deltoid and syndesmotic ligament complexes completely destabilized, specimens underwent

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Suri, Sunjay, Suteeta Disthaporn, Bruce Ross, et al. "Permanent maxillary central incisor and first molar rotations in the mixed dentition in repaired complete unilateral cleft lip and palate and their relationship with absence of teeth in their vicinity." Angle Orthodontist 88, no. 5 (2018): 567–74. http://dx.doi.org/10.2319/121117-856.1.

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ABSTRACT Objectives: To describe qualitatively and quantitatively the directions and magnitudes of rotations of permanent maxillary central incisors and first molars in the mixed dentition in repaired complete unilateral cleft lip and palate (UCLP) and study their associations with absence of teeth in their vicinity. Materials and Methods: Dental casts and orthodontic records taken prior to orthodontic preparation for alveolar bone grafting of 74 children with repaired UCLP (53 male, 21 female; aged 8.9 ± 1.0 years) were studied. Directions and magnitudes of permanent maxillary central incisor

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Zhao, Lihao, Niranjan R. Challabotla, Helge I. Andersson, and Evan A. Variano. "Mapping spheroid rotation modes in turbulent channel flow: effects of shear, turbulence and particle inertia." Journal of Fluid Mechanics 876 (July 31, 2019): 19–54. http://dx.doi.org/10.1017/jfm.2019.521.

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The rotational behaviour of non-spherical particles in turbulent channel flow is studied by Lagrangian tracking of spheroidal point particles in a directly simulated flow. The focus is on the complex rotation modes of the spheroidal particles, in which the back reaction on the flow field is ignored. This study is a sequel to the letter by Zhao et al. (Phys. Rev. Lett., vol. 115, 2015, 244501), in which only selected results in the near-wall buffer region and the almost-isotropic channel centre were presented. Now, particle dynamics all across the channel is explored to provide a complete pictu

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Wagner, Pablo, Emilio Wagner, Diego Zanolli de Solminihac, Cristian Ortiz, Andres Keller Díaz, and Ruben Radkievich. "Proximal Rotational Metatarsal Osteotomy for Hallux Valgus." Foot & Ankle Orthopaedics 2, no. 3 (2017): 2473011417S0000. http://dx.doi.org/10.1177/2473011417s000081.

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Category: Bunion, Midfoot/Forefoot Introduction/Purpose: Hallux valgus combines two deformities, the metatarsus varus and metatarsal internal rotation. The rotational deformity is seldom corrected during surgery, but is a known recurrence factor. Most techniques only correct the metatarsus varus (scarf, chevron, etc). We present a prospective case series using a novel metatarsal rotational osteotomy called PROMO (proximal rotational metatarsal osteotomy) which simultaneously corrects the metatarsal internal rotation and varus deformity by rotating the metatarsal through an oblique plane osteot

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Costa, Marcela Porto, David Chadwick, Sophie Saget, Robert M. Rees, Michael Williams, and David Styles. "Representing crop rotations in life cycle assessment: a review of legume LCA studies." International Journal of Life Cycle Assessment 25, no. 10 (2020): 1942–56. http://dx.doi.org/10.1007/s11367-020-01812-x.

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Abstract Purpose There is an imperative to accurately assess the environmental sustainability of crop system interventions in the context of food security and climate change. Previous studies have indicated that the incorporation of legumes into cereal rotations could reduce overall environmental burdens from cropping systems. However, most life cycle assessment (LCA) studies focus on individual crops and miss environmental consequences of inter-annual crop sequence and nutrient cycling effects. This review investigates state-of-the-art representation of inter-crop rotation effects within legu

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Patel, Premal, Jasmir G. Nayak, and Thomas B. McGregor. "The value of a core clinical rotation in urology for medical students." Canadian Urological Association Journal 9, no. 11-12 (2015): 392. http://dx.doi.org/10.5489/cuaj.3297.

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<p><strong>Introduction:</strong> In 2013, our institution underwent a change to the undergraduate medical curriculum whereby a clinical urology rotation became mandatory. In this paper, we evaluated the perceived utility and value of this change in the core curriculum.</p><p><strong>Methods:</strong> Third year medical students, required to complete a mandatory 1-week clinical urology rotation, were asked to complete a survey before and after their rotation. Fourth year medical students, not required to complete this rotation, were also asked to compl

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Su, Yuchan, and Haiyan Zhang. "RESEARCH AND DEVELOPMENT PROCESS OF PENETRATE CORE LITERACY-THE ROTATION AND TRANSFORMATION OF GRAPHICS AS AN EXAMPLE." JOURNAL OF SONGKE MATH 6, no. 1 (2023): 41–60. http://dx.doi.org/10.36928/jsm.v6i1.2167.

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This paper focuses on solving problems from line and difference problems, proving angle problems and common vertex problems using rotational transformation ideas to expand the problem-solving process and develop students' core literacy. After analyzing the mathematics test questions, it is not difficult to find that the rotation of a figure is often tested in a comprehensive expansion. The test questions focused on the problems related to angles or line segments when the figure is rotated to a particular position, integrating the dynamic geometry of change and invariance, geometric conjecture,

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Vitalii, Budashko, Sandler Albert, and Khniunin Sergii. "Improving the method of linear-quadratic control over a physical model of vessel with azimuthal thrusters." Eastern-European Journal of Enterprise Technologies 1, no. 2 (121) (2023): 49–71. https://doi.org/10.15587/1729-4061.2023.273934.

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The object of this research is the algorithms for controlling large-scale models of sea-based vehicles (SBVs). The subject of the research is a linear-quadratic method for controlling a model of the propulsion complex with azimuthal thrusters (ATs) in the aft part. The problem is the solution between the interdependent throws of surge, sway, and yaw speeds predicted by the linear controller. Input signals are the rotational speeds and the angles of ATs propeller thrusts with respect to the diametrical plane of SBVs. During the simulation, step responses of a closed system for overload and rota

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