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Journal articles on the topic 'Dynamics of movement'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Gielen, Stan C. A. M. "Movement dynamics." Current Opinion in Neurobiology 3, no. 6 (1993): 912–16. http://dx.doi.org/10.1016/0959-4388(93)90162-r.

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Grinyagin, I. V., E. V. Biryukova, and M. A. Maier. "Kinematic and Dynamic Synergies of Human Precision-Grip Movements." Journal of Neurophysiology 94, no. 4 (2005): 2284–94. http://dx.doi.org/10.1152/jn.01310.2004.

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We analyzed the adaptability of human thumb and index finger movement kinematics and dynamics to variations of precision grip aperture and movement velocity. Six subjects performed precision grip opening and closing movements under different conditions of movement velocity and movement aperture (thumb and index finger tip-to-tip distance). Angular motion of the thumb and index finger joints was recorded with a CyberGlove and a three-dimensional biomechanical model was used for solving the inverse dynamics problem during precision grip movements, i.e., for calculating joint torques from experim

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Padoa-Schioppa, Camillo, Chiang-Shan Ray Li, and Emilio Bizzi. "Neuronal Activity in the Supplementary Motor Area of Monkeys Adapting to a New Dynamic Environment." Journal of Neurophysiology 91, no. 1 (2004): 449–73. http://dx.doi.org/10.1152/jn.00876.2002.

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To execute visually guided reaching movements, the central nervous system (CNS) must transform a desired hand trajectory (kinematics) into appropriate muscle-related commands (dynamics). It has been suggested that the CNS might face this challenging computation by using internal forward models for the dynamics. Previous work in humans found that new internal models can be acquired through experience. In a series of studies in monkeys, we investigated how neurons in the motor areas of the frontal lobe reflect the movement dynamics and how their activity changes when monkeys learn a new internal

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Korobko, M. M. "Discrete model of chain conveyor movement dynamics." Naukovij žurnal «Tehnìka ta energetika» 11, no. 4 (2020): 89–94. http://dx.doi.org/10.31548/machenergy2020.04.089.

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Improving the reliability of structures of transport mechanisms and other elements, reducing metal content, improving performance, expanding functionality and technical capabilities is a priority area of work to improve existing and develop new machines for beet growing. The dynamic model of the chain conveyor which considers the basic movement and fluctuations of elements of the drive and a working cloth is developed in work. The model is represented by a system of discrete masses with eight degrees of freedom. The operation of chain conveyors is characterized by the presence of dynamic force

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Nepstad, Sharon, and Clifford Bob. "When Do Leaders Matter? Hypotheses on Leadership Dynamics in Social Movements." Mobilization: An International Quarterly 11, no. 1 (2006): 1–22. http://dx.doi.org/10.17813/maiq.11.1.013313600164m727.

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Leaders are central to social movements, yet scholars have devoted relatively little attention to understanding the concept of leadership or its effects on movements. In this article, we explore leadership's influence on movement dynamics by examining Nigeria's Movement for the Survival of the Ogoni People (MOSOP), the Catholic Left-inspired Plowshares movement, the Zapatista uprising in Chiapas, Mexico, and the liberation movement in El Salvador. Building on Bourdieu, Putnam, and the existing literature on social movement leadership, we argue that these movements' leaders possessed "leadershi

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Croft, Mary Ann, Paul L. Kaufman, Kathryn S. Crawford, Michael W. Neider, Adrian Glasser, and Laszlo Z. Bito. "Accommodation dynamics in aging rhesus monkeys." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 275, no. 6 (1998): R1885—R1897. http://dx.doi.org/10.1152/ajpregu.1998.275.6.r1885.

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Accommodation, the mechanism by which the eye focuses on near objects, is lost with increasing age in humans and monkeys. This pathophysiology, called presbyopia, is poorly understood. We studied aging-related changes in the dynamics of accommodation in rhesus monkeys aged 4–24 yr after total iridectomy and midbrain implantation of an electrode to permit visualization and stimulation, respectively, of the eye’s accommodative apparatus. Real-time video techniques were used to capture and quantify images of the ciliary body and lens. During accommodation in youth, ciliary body movement was bipha

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Koopman, Bart (H F. J. M. ). "Dynamics of human movement." Technology and Health Care 18, no. 4-5 (2010): 371–85. http://dx.doi.org/10.3233/thc-2010-0599.

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Wagenaar, Robert C., and Richard E. A. van Emmerik. "Dynamics of movement disorders." Human Movement Science 15, no. 2 (1996): 161–75. http://dx.doi.org/10.1016/0167-9457(96)00003-6.

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Gibo, Tricia L., Sarah E. Criscimagna-Hemminger, Allison M. Okamura, and Amy J. Bastian. "Cerebellar motor learning: are environment dynamics more important than error size?" Journal of Neurophysiology 110, no. 2 (2013): 322–33. http://dx.doi.org/10.1152/jn.00745.2012.

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Cerebellar damage impairs the control of complex dynamics during reaching movements. It also impairs learning of predictable dynamic perturbations through an error-based process. Prior work suggests that there are distinct neural mechanisms involved in error-based learning that depend on the size of error experienced. This is based, in part, on the observation that people with cerebellar degeneration may have an intact ability to learn from small errors. Here we studied the relative effect of specific dynamic perturbations and error size on motor learning of a reaching movement in patients wit

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Moody, Sohie Lee, and David Zipser. "A Model of Reaching Dynamics in Primary Motor Cortex." Journal of Cognitive Neuroscience 10, no. 1 (1998): 35–45. http://dx.doi.org/10.1162/089892998563761.

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Features of virtually all voluntary movements are represented in the primary motor cortex. The movements can be ongoing, imminent, delayed, or imagined. Our goal was to investigate the dynamics of movement representation in the motor cortex. To do this we trained a fully recurrent neural network to continually output the direction and magnitude of movements required to reach randomly changing targets. Model neurons developed preferred directions and other properties similar to real motor cortical neurons. The key finding is that when the target for a reaching movement changes location, the ens

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Koolstra, J. H. "Dynamics of the Human Masticatory System." Critical Reviews in Oral Biology & Medicine 13, no. 4 (2002): 366–76. http://dx.doi.org/10.1177/154411130201300406.

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In this review, the movement characteristics of the human masticatory system are discussed from a biomechanical perspective. The discussion is based upon the three fundamental laws of mechanics applied to the various anatomical structures that are part of the masticatory system. An analysis of the forces and torques applied to the mandible by muscles, joints, articular capsules, and teeth is used to assess the determinants of jaw movement. The principle of relating the interplay of forces to the center of gravity of the lower jaw, in contrast to a hinge axis near its joints, is introduced. It

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Crevecoeur, F., J. McIntyre, J. L. Thonnard, and P. Lefèvre. "Movement Stability Under Uncertain Internal Models of Dynamics." Journal of Neurophysiology 104, no. 3 (2010): 1301–13. http://dx.doi.org/10.1152/jn.00315.2010.

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Sensory noise and feedback delay are potential sources of instability and variability for the on-line control of movement. It is commonly assumed that predictions based on internal models allow the CNS to anticipate the consequences of motor actions and protect the movements from uncertainty and instability. However, during motor learning and exposure to unknown dynamics, these predictions can be inaccurate. Therefore a distinct strategy is necessary to preserve movement stability. This study tests the hypothesis that in such situations, subjects adapt the speed and accuracy constraints on the

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Curtis-Jones, Alison. "Dynamic dichotomies: How can the body be a dynamic archive?" Dance, Movement & Spiritualities 10, no. 1 (2023): 99–124. http://dx.doi.org/10.1386/dmas_00049_1.

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This article discusses the complexities around movement dynamics and how the term ‘dynamic archive’ is understood in dance. Drawing from Andre Lepecki’s ‘The body as archive’ (2010), Rudolf Laban and F. C. Lawrence’s Effort theory (1947) and a choreological perspective to investigate the complexities of dynamics as an embodied phenomenon, I discuss the body as a dynamic archive of embodied experience. This article provides debate about how dynamics are learnt and recalled for the purposes of re-staging and how movement dynamics are stored by the dancer as a dynamic archive.

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Suh, Doowon. "What happens to social movements after policy success? Framing the unintended consequences and changing dynamics of the Korean women’s movement." Social Science Information 53, no. 1 (2014): 3–34. http://dx.doi.org/10.1177/0539018413510989.

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Since the late 1990s, the consequences of collective action have been subject to an expanded scholarly inquiry. In particular, a growing body of analysis has elaborated on the impact of social movements on policy, coupled with studies dealing with structural, organizational, and biographical changes. On the whole, however, the literature continues to under-recognize how unintended consequences affect the way social movements function. In order to illustrate the unanticipated yet profound impact of unintended consequences on movement dynamics, I examine the Korean women’s movement as a case stu

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Xin, Yalin. "Inner Dynamics of the Chinese House Church Movement: The Case of the Word of Life Community." Mission Studies 25, no. 2 (2008): 157–84. http://dx.doi.org/10.1163/157338308x365350.

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AbstractThe Word of Life house church movement is considered to be one of the most influential Christian movements in China for the past three decades, with its network touching all 23 provinces and autonomous zones in China. It is also one of the largest house church networks that emerged in central China in the past three decades. This paper gears at investigating the inner dynamics that has underscored the growth and vitality of the movement by incorporating some insights from studies on historical Christian renewal movements. A variety of categories or models are employed, such as paradigm

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Vasilyev, A. N., A. E. Makovskaya, and A. Ya Kaplan. "DYNAMICS OF THE EEG SENSORIMOTOR RHYTHM DURING MENTAL REPETITION OF THE OBSERVED MOVEMENT." Журнал высшей нервной деятельности им. И.П. Павлова 73, no. 4 (2023): 490–509. http://dx.doi.org/10.31857/s004446772304010x.

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Mental simulation of one’s own movement, or imagery of movement, as well as observation of other people’s movements are used in neurorehabilitation as methods of stimulation of sensorimotor parts of the brain. The present work tests a new way of representation - mental simulation of movement, synchronous with the movement observed from the first person on a video screen. The objectives of the study were to compare the reactivity of sensorimotor EEG rhythms during voluntary movement representation and representation following a video stimulus, and to identify the relationship between the phases

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Nepal, Padam. "How Movements Move? Evaluating the Role of Ideology and Leadership in Environmental Movement Dynamics in India with Special Reference to the Narmada Bachao Andolan." Hydro Nepal: Journal of Water, Energy and Environment 4 (May 24, 2009): 24–29. http://dx.doi.org/10.3126/hn.v4i0.1821.

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Lawrence Cox (1999) has argued that the established perspectives on social movements operate with an inadequately narrow conception of the ‘object’ that is being studied and thus tends to ‘reify’ “movements” as usual activity against essentially static backgrounds, and in its place, he advocates a concept of social movement as the more or less developed articulation of situated rationalities. Following Cox, therefore, the present study perceives social movements as articulations of situated rationalities by perceiving them as a tactical, dialectical response to the harsh realities of the polit

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Gambetti, Zeynep. "Politics of place/space: The spatial dynamics of the Kurdish and Zapatista movements." New Perspectives on Turkey 41 (2009): 43–87. http://dx.doi.org/10.1017/s0896634600005379.

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AbstractThis paper explores two examples of collective action, the Zapatista movement in Chiapas, Mexico, and the Kurdish movement in Turkey, by focusing on how these movements constructed two particular places, Diyarbakir and Chiapas, after the armed conflict subsided. My first aim is to show how this place-making has affected the discourses and practices of these movements. I argue that place-making is not only about locality or physical setting, but also about constructing a movement and a form of struggle in its own right. My second aim is to discuss the broad outlines of what may be calle

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Daversa, D. R., A. Fenton, A. I. Dell, T. W. J. Garner, and A. Manica. "Infections on the move: how transient phases of host movement influence disease spread." Proceedings of the Royal Society B: Biological Sciences 284, no. 1869 (2017): 20171807. http://dx.doi.org/10.1098/rspb.2017.1807.

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Animal movement impacts the spread of human and wildlife diseases, and there is significant interest in understanding the role of migrations, biological invasions and other wildlife movements in spatial infection dynamics. However, the influence of processes acting on infections during transient phases of host movement is poorly understood. We propose a conceptual framework that explicitly considers infection dynamics during transient phases of host movement to better predict infection spread through spatial host networks. Accounting for host transient movement captures key processes that occu

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Blee, Kathleen, and Ashley Currier. "Character Building: The Dynamics of Emerging Social Movement Groups." Mobilization: An International Quarterly 10, no. 1 (2005): 129–44. http://dx.doi.org/10.17813/maiq.10.1.e811842412054092.

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Few studies have collected contemporaneous data on social movements at their earliest stages. Thus, we know little about how social movement groups develop the characteristics that will later become assumed as what the group is. This study explores how social movement groups come to take on a particular character by collecting longitudinal, contemporaneous, comparative, and interactional data on what we term "emerging social movement groups" (ESMGs). Using concepts from time-geographic theory, we examine how three paired ESMGs develop distinctive interpersonal, organizational, and ideological

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Gurung, Ram. "Nurturing consciousness for mobilization: Dynamics of land rights movements in Nepal." Journal of Nepalese Studies 16, no. 1 (2024): 170–88. http://dx.doi.org/10.3126/jns.v16i1.71791.

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Conscious participant(s) is crucial in the organization and mobilization of social movements. It mediates the entire process of movement practices. Despite its importance, it is regarded merely as an autonomous internal dynamic, overlooking the role external factors play in building consciousness among marginalized communities. In-depth conversations with movement participants and activists in Nepal’s land rights movements, evident that nurturing consciousness is a process predominantly shaped by external factors, particularly the individual and organizations. To transform marginalized communi

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Martin, V., J. P. Scholz, and G. Schöner. "Redundancy, Self-Motion, and Motor Control." Neural Computation 21, no. 5 (2009): 1371–414. http://dx.doi.org/10.1162/neco.2008.01-08-698.

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Outside the laboratory, human movement typically involves redundant effector systems. How the nervous system selects among the task-equivalent solutions may provide insights into how movement is controlled. We propose a process model of movement generation that accounts for the kinematics of goal-directed pointing movements performed with a redundant arm. The key element is a neuronal dynamics that generates a virtual joint trajectory. This dynamics receives input from a neuronal timer that paces end-effector motion along its path. Within this dynamics, virtual joint velocity vectors that move

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Otten, E. "Multi-Joint Dynamics and the Development of Movement Control." Neural Plasticity 12, no. 2-3 (2005): 89–98. http://dx.doi.org/10.1155/np.2005.89.

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The movement control of articulated limbs in humans has been explained in terms of equilibrium points and moving equilibrium points or virtual trajectories. One hypothesis is that the nervous system controls multi-segment limbs by simply planning in terms of these equilibrium points and trajectories. The present paper describes a planar computer simulation of an articulated three-segment limb, controlled by pairs of muscles. The shape of the virtual trajectory is analyzed when the limb is required to make fast movements with endpoint movements along a straight line with bell-shaped velocity pr

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Sainburg, R. L., C. Ghez, and D. Kalakanis. "Intersegmental Dynamics Are Controlled by Sequential Anticipatory, Error Correction, and Postural Mechanisms." Journal of Neurophysiology 81, no. 3 (1999): 1045–56. http://dx.doi.org/10.1152/jn.1999.81.3.1045.

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Intersegmental dynamics are controlled by sequential anticipatory, error correction, and positional control mechanisms. The purpose of this study is to examine the mechanisms underlying control of intersegmental dynamics during reaching movements. Two experiments were conducted to determine the relative contributions of anticipatory and somatosensory feedback mechanisms in controlling intersegmental dynamics and whether adaptation to novel intersegmental dynamics generalizes across a range of movement directions. The mechanisms used to control interaction torques were examined by altering the

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Caligiuri, Michael P., and James H. Abbs. "Labial movement dynamics for speech." Journal of the Acoustical Society of America 77, S1 (1985): S100. http://dx.doi.org/10.1121/1.2022124.

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Waters, Sarah. "Situating Movements Historically: May 1968, Alain Touraine, and New Social Movement Theory." Mobilization: An International Quarterly 13, no. 1 (2008): 63–82. http://dx.doi.org/10.17813/maiq.13.1.l3116043285p606w.

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Recent literature on social movements has called for a renewal of theory so that it engages more directly with the social and historical dynamics in which movements emerge and crystallize. Too often, some critics argue, movements are treated as static or reified phenomena that are disconnected from their links to space and time. I examine new social movement theory from an historical perspective that emphasizes its connections with concrete social dynamics at a given point in time. Unlike alternative approaches, new social movement (NSM) theory and in particular the work of Alain Touraine, was

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Cisek, Paul, Stephen Grossberg, and Daniel Bullock. "A Cortico-Spinal Model of Reaching and Proprioception under Multiple Task Constraints." Journal of Cognitive Neuroscience 10, no. 4 (1998): 425–44. http://dx.doi.org/10.1162/089892998562852.

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A model of cortico-spinal trajectory generation for voluntary reaching movements is developed to functionally interpret a broad range of behavioral, physiological, and anatomical data. The model simulates how arm movements achieve their remarkable efficiency and accuracy in response to widely varying positional, speed, and force constraints. A key issue in arm movement control is how the brain copes with such a wide range of movement contexts. The model suggests how the brain may set automatic and volitional gating mechanisms to vary the balance of static and dynamic feedback information to gu

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Alimi, Eitan, Lorenzo Bosi, and Chares Demetriou. "Relational Dynamics and Processes of Radicalization: A Comparative Framework." Mobilization: An International Quarterly 17, no. 1 (2012): 7–26. http://dx.doi.org/10.17813/maiq.17.1.u7rw348t8200174h.

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We propose an explanatory framework for the comparative study of radicalization that focuses on its "how" and "when" questions. We build on the relational tradition in the study of social movements and contentious politics by expanding on a mechanism-process research strategy. Attentive to similarities as well as to dissimilarities, our comparative framework traces processes of radicalization by delineating four key arenas of interaction—between movement and political environment, among movement actors, between movement activists and state security forces, and between the movement and a counte

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Carson, Richard G., Julie Thomas, Jeffery J. Summers, Megan R. Walters, and Andras Semjen. "The Dynamics of Bimanual Circle Drawing." Quarterly Journal of Experimental Psychology Section A 50, no. 3 (1997): 664–83. http://dx.doi.org/10.1080/713755721.

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A bimanual circle drawing task was employed to elucidate the dynamics of intralimb and interlimb coordination. Right-handed subjects were required to produce circles with both hands in either a symmetrical (mirror) mode (i.e. one hand moving clockwise, the other counter-clockwise) or in an asymmetrical mode (i.e. both hands moving clockwise or counter-clockwise). The frequency of movement was scaled by an auditory metronome from 1.50 Hz to 3.25 Hz in8 (8-sec) steps. In the asymmetrical mode, distortions ofthe movement trajectories, transient departures from the target pattern of coordination,

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Van Emmerik, Richard E. A., Michael T. Rosenstein, William J. McDermott, and Joseph Hamill. "A Nonlinear Dynamics Approach to Human Movement." Journal of Applied Biomechanics 20, no. 4 (2004): 396–420. http://dx.doi.org/10.1123/jab.20.4.396.

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Nonlinear dynamics and dynamical systems approaches and methodologies are increasingly being implemented in biomechanics and human movement research. Based on the early insights of Nicolai Bernstein (1967), a significantly different outlook on the movement control “problem” over the last few decades has emerged. From a focus on relatively simple movements has arisen a research focus with the primary goal to study movement in context, allowing the complexity of patterns to emerge. The approach taken is that the control of multiple degrees-of-freedom systems is not necessarily more difficult or

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Castellano, Ginevra, Marcello Mortillaro, Antonio Camurri, Gualtiero Volpe, and Klaus Scherer. "Automated Analysis of Body Movement in Emotionally Expressive Piano Performances." Music Perception 26, no. 2 (2008): 103–19. http://dx.doi.org/10.1525/mp.2008.26.2.103.

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EMOTIONAL EXPRESSION IN MUSIC PERFORMANCE includes important cues arising from the body movement of the musician. This movement is related to both the musical score execution and the emotional intention conveyed. In this experiment, a pianist was asked to play the same excerpt with different emotionally expressive intentions. The aim was to verify whether different expressions could be distinguished based on movement by trying to determine which motion cues were most emotion-sensitive. Analyses were performed via an automated system capable of detecting the temporal profiles of two motion cues

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Mutlu, Sercan. "Gezi Park analysis as an example of social movement." Review of Nationalities 12, no. 1 (2022): 103–21. http://dx.doi.org/10.2478/pn-2022-0009.

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Abstract This article aims to analyze the Gezi Park social movement, which started in Istanbul in 2013 and spread all over Turkey in a short time, in the context of class dynamics. In this context, firstly, the adequacy of examining the Gezi Park movement within the scope of new social movements will Gezi Park analysis as an example of social movement be emphasized. Secondly, the study will attempt to establish an alternative critical approach based on class. With this approach, class dynamics of the Gezi Park movement will be sought under the titles of historicity, antagonism, and holism.

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Liu, Kun, Shuo Ji, Yong Liu, et al. "Analysis of Ankle Muscle Dynamics during the STS Process Based on Wearable Sensors." Sensors 23, no. 14 (2023): 6607. http://dx.doi.org/10.3390/s23146607.

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Ankle joint moment is an important indicator for evaluating the stability of the human body during the sit-to-stand (STS) movement, so a method to analyze ankle joint moment is needed. In this study, a wearable sensor system that could derive surface-electromyography (sEMG) signals and kinematic signals on the lower limbs was developed for non-invasive estimation of ankle muscle dynamics during the STS movement. Based on the established ankle joint musculoskeletal information and sEMG signals, ankle joint moment during the STS movement was calculated. In addition, based on a four-segment STS d

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Palmer, R. E., M. Koval, and D. Koshland. "The dynamics of chromosome movement in the budding yeast Saccharomyces cerevisiae." Journal of Cell Biology 109, no. 6 (1989): 3355–66. http://dx.doi.org/10.1083/jcb.109.6.3355.

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Nuclear DNA movement in the yeast, Saccharomyces cerevisiae, was analyzed in live cells using digital imaging microscopy and corroborated by the analysis of nuclear DNA position in fixed cells. During anaphase, the replicated nuclear genomes initially separated at a rate of 1 micron/min. As the genomes separated, the rate of movement became discontinuous. In addition, the axis defined by the segregating genomes rotated relative to the cell surface. The similarity between these results and those previously obtained in higher eukaryotes suggest that the mechanism of anaphase movement may be high

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Lin, Chin-Hsien, Hsun Li, Yi-Nan Lee, Ying-Ju Cheng, Ruey-Meei Wu, and Cheng-Ting Chien. "Lrrk regulates the dynamic profile of dendritic Golgi outposts through the golgin Lava lamp." Journal of Cell Biology 210, no. 3 (2015): 471–83. http://dx.doi.org/10.1083/jcb.201411033.

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Constructing the dendritic arbor of neurons requires dynamic movements of Golgi outposts (GOPs), the prominent component in the dendritic secretory pathway. GOPs move toward dendritic ends (anterograde) or cell bodies (retrograde), whereas most of them remain stationary. Here, we show that Leucine-rich repeat kinase (Lrrk), the Drosophila melanogaster homologue of Parkinson’s disease–associated Lrrk2, regulates GOP dynamics in dendrites. Lrrk localized at stationary GOPs in dendrites and suppressed GOP movement. In Lrrk loss-of-function mutants, anterograde movement of GOPs was enhanced, where

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Uhlrich, Scott D., Antoine Falisse, Łukasz Kidziński, et al. "OpenCap: Human movement dynamics from smartphone videos." PLOS Computational Biology 19, no. 10 (2023): e1011462. http://dx.doi.org/10.1371/journal.pcbi.1011462.

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Measures of human movement dynamics can predict outcomes like injury risk or musculoskeletal disease progression. However, these measures are rarely quantified in large-scale research studies or clinical practice due to the prohibitive cost, time, and expertise required. Here we present and validate OpenCap, an open-source platform for computing both the kinematics (i.e., motion) and dynamics (i.e., forces) of human movement using videos captured from two or more smartphones. OpenCap leverages pose estimation algorithms to identify body landmarks from videos; deep learning and biomechanical mo

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Kuang, Hua, Yan Hong Fan, Xing Li Li, and Ling Jiang Kong. "Heterogeneous Effect and Pattern Formation on Pedestrian Queue Dynamics." Applied Mechanics and Materials 94-96 (September 2011): 2043–46. http://dx.doi.org/10.4028/www.scientific.net/amm.94-96.2043.

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Based on the optimal velocity model, an extended optimal velocity model is proposed to simulate the movement characteristics of multi-types pedestrian queue by considering the differences among pedestrians (e.g., the differences in age and sex, etc.) and the asymmetric interaction. For the random distribution of pedestrian queue, the evolution rules of pedestrian movement and the formation mechanism of space-time pattern under two different boundary conditions are investigated. The numerical simulations show that the model can better describe the space-time distribution of pedestrian movement

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Kurgansky, M. E., M. R. Isaev, and P. D. Bobrov. "Dynamics of EEG synchronization and desynchronization when performing real and imagined hand reaching." Журнал высшей нервной деятельности им. И.П. Павлова 74, no. 2 (2024): 210–22. http://dx.doi.org/10.31857/s0044467724020069.

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The work investigates spatial and temporal EEG patterns during real and imagined execution of hand reaching. Six independent sources of electrical activity were identified in the EEG recordings. The sources corresponded to the premotor areas, supplementary motor area, primary motor areas, and posterior parietal cortex. Their activation patterns in the alpha and beta range were studied using a continuous wavelet transform. The main differences between real and imagined movement are found in the activation of primary motor and premotor areas. Asymmetry in activation of primary motor areas was ob

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Sukmana, Oman. "Phases and Dynamics of the Social Movement Process in Indonesia: A Case Study on LAPINDO Mudflow Disaster Victims against the Government." Budapest International Research and Critics Institute (BIRCI-Journal): Humanities and Social Sciences 3, no. 2 (2020): 1413–25. http://dx.doi.org/10.33258/birci.v3i2.1001.

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This study focused on mapping the phases and dynamics of the social movement process of Lapindo mudflow disaster victims in Indonesia. This study was analyzed by using a qualitative. The subject of the study was determined by purposive sampling in which all elements involved in the social movement of mudflow disaster victims. The data were collected by using in-depth interview, observation, FGD, and documentation. The stages of the analysis process involved data reduction, data presentation, and drawing conclusion. The results of the study indicated that the social movements were mapped into t

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Funke, Peter Nikolaus. "Building Rhizomatic Social Movements? Movement-Building Relays during the Current Epoch of Contention." Studies in Social Justice 8, no. 1 (2014): 27–44. http://dx.doi.org/10.26522/ssj.v8i1.1037.

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This article investigates the movement building dynamics of contemporary social movement milieus (such as particular protests, social forums or occupations). It develops the concept of the “relay” to introduce four ideal-type movement building relays understood as distinct movement milieus: clustering relay, networking relay, organizing relay, and transforming relay. Each ideal-type captures different points on a continuum of increasing movement building and thus for generating commonalities, shared understandings and identities, mobilizations and strategies. Focusing on what I call the curren

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Blocker, A., G. Griffiths, J. C. Olivo, A. A. Hyman, and F. F. Severin. "A role for microtubule dynamics in phagosome movement." Journal of Cell Science 111, no. 3 (1998): 303–12. http://dx.doi.org/10.1242/jcs.111.3.303.

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We have shown previously that intracellular phagosome movement requires microtubules. Here we provide evidence that within cells phagosomes display two different kinds of microtubule-based movements in approximately equal proportions. The first type occurs predominantly in the cell periphery, often shortly after the phagosome is formed, and at speeds below 0.1 microm/second. The second is faster (0.2-1.5 micron/second) and occurs mainly after phagosomes have reached the cell interior. Treating cells with nanomolar concentrations of taxol or nocodazole alters microtubule dynamics without affect

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del Mar Delgado, Maria, Maria Miranda, Silvia J. Alvarez, et al. "The importance of individual variation in the dynamics of animal collective movements." Philosophical Transactions of the Royal Society B: Biological Sciences 373, no. 1746 (2018): 20170008. http://dx.doi.org/10.1098/rstb.2017.0008.

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Animal collective movements are a key example of a system that links two clearly defined levels of organization: the individual and the group. Most models investigating collective movements have generated coherent collective behaviours without the inclusion of individual variability. However, new individual-based models, together with emerging empirical information, emphasize that within-group heterogeneity may strongly influence collective movement behaviour. Here we (i) review the empirical evidence for individual variation in animal collective movements, (ii) explore how theoretical investi

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Shiono, Masahiro, Kohei Kitadera, and Seiichi Sudo. "Dynamics of Flower Head Movement in Bio-System." Advanced Materials Research 123-125 (August 2010): 311–14. http://dx.doi.org/10.4028/www.scientific.net/amr.123-125.311.

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This paper is concerned with plant biomechanics to obtain inspiration for innovative engineering technology from nature. The dynamics of the flower head movement and the plant growth was studied experimentally. The folding and unfolding movements of the petals of cut dandelion flower heads were observed by the low-speed photographing method. Movements of cut dandelion flower heads were observed as movies, and analyzed by the personal computer. The surface cell form of the petal of the dandelion, Taraxacum officinale, was also observed by the laser beam microscope. The time change of the surfac

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Bodda, Sandeep, and Shyam Diwakar. "Exploring EEG spectral and temporal dynamics underlying a hand grasp movement." PLOS ONE 17, no. 6 (2022): e0270366. http://dx.doi.org/10.1371/journal.pone.0270366.

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For brain-computer interfaces, resolving the differences between pre-movement and movement requires decoding neural ensemble activity in the motor cortex’s functional regions and behavioural patterns. Here, we explored the underlying neural activity and mechanisms concerning a grasped motor task by recording electroencephalography (EEG) signals during the execution of hand movements in healthy subjects. The grasped movement included different tasks; reaching the target, grasping the target, lifting the object upwards, and moving the object in the left or right directions. 163 trials of EEG dat

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Siqueira, Luiz Felipi Ribeiro, Marcelo Santiago de Sousa, Flávio Luiz Cardoso-Ribeiro, and Sebastião Simões da Cunha Junior. "A Detailed Physical Explanation of an Aircraft Flutter Mechanism." Archives of Current Research International 24, no. 5 (2024): 191–212. http://dx.doi.org/10.9734/acri/2024/v24i5696.

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Each dynamic mode (aeroelastic) is made up of torsional and rotational movements. These two movements in each mode were dissociated and the phase, amplitude, damping and frequency of each of these movements were analyzed. The structural resistances of torsion and bending, as well as the bending movement itself, have a damping effect and torsion has a destabilizing effect on the oscillations (if the centre of pressure is ahead of the flexural axis). After a certain speed, bending becomes out of phase with the applied forces. At this point, the bending has an amplifying effect on the oscillation

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Rizal Al-Hamid, Rizal Al-Hamid. "MORAL POLITIK GERAKAN MAHASISWA DALAM PERSPEKTIF TINJAUAN FILOSOFIS HUKUM ISLAM." Al-'`Adalah : Jurnal Syariah dan Hukum Islam 4, no. 2 (2019): 177–93. http://dx.doi.org/10.31538/adlh.v4i2.551.

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The dynamics of the student movement is a study that will not be interrupted and very interesting. It is a reality both from a historical perspective and in the context of reality that the dynamics of student movements have provided a phenomenon that continues as if it had no end. However the student movement has colored various political events in Indonesia. This is what sometimes does not bring a productive solution This paper aims to discuss some philosophies of Islamic teachings that can be a reference in the student movement.

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Sandell, Rickard. "Organizational Growth and Ecological Constraints: The Growth of Social Movements in Sweden, 1881 to 1940." American Sociological Review 66, no. 5 (2001): 672–93. http://dx.doi.org/10.1177/000312240106600503.

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Based on the theoretical framework of organizational ecology, it is suggested that social movement organizations are inert structures that rarely exceed their initial size. The ecological concept of organizational growth is tested using membership data for Sweden from 1881 to 1940 for virtually all local social movement organizations (29,193 organizations) in three major social movements: the temperance, free church, and trade union movements. Findings show that the organizations in two of the movements have average growth trajectories approximating zero. The ecological argument is then expand

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Kadmon Harpaz, Naama, David Ungarish, Nicholas G. Hatsopoulos, and Tamar Flash. "Movement Decomposition in the Primary Motor Cortex." Cerebral Cortex 29, no. 4 (2018): 1619–33. http://dx.doi.org/10.1093/cercor/bhy060.

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Abstract A complex action can be described as the composition of a set of elementary movements. While both kinematic and dynamic elements have been proposed to compose complex actions, the structure of movement decomposition and its neural representation remain unknown. Here, we examined movement decomposition by modeling the temporal dynamics of neural populations in the primary motor cortex of macaque monkeys performing forelimb reaching movements. Using a hidden Markov model, we found that global transitions in the neural population activity are associated with a consistent segmentation of

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Ahmed, Mohammed, M. S. Huq, and B. S. K. K. Ibrahim. "Kinematic Modelling of FES Induced Sit-to-stand Movement in Paraplegia." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 6 (2017): 3060. http://dx.doi.org/10.11591/ijece.v7i6.pp3060-3069.

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FES induced movements from indication is promising due to encouraging results being obtained by scholars. The kinematic model usually constitute the initial phase towards achieving the segmental dynamics of any rigid body system. It can be used to ascertain that the model is capable of achieving the desired goal. The dynamic model builds on the kinematic model and is usually mathematically cumbersome depending on the number of degrees-of-freedom. This paper presents a kinematic model applicable for human sit-to-stand movement scenario that will be used to obtain the dynamic model the FES induc

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Mohammed, Ahmed, S. Huq M., and S. K. K. Ibrahim B. "Kinematic Modelling of FES Induced Sit-to-stand Movement in Paraplegia." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 6 (2017): 3060–69. https://doi.org/10.11591/ijece.v7i6.pp3060-3069.

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FES induced movements from indication is promising due to encouraging results being obtained by scholars. The kinematic model usually constitute the initial phase towards achieving the segmental dynamics of any rigid body system. It can be used to ascertain that the model is capable of achieving the desired goal. The dynamic model builds on the kinematic model and is usually mathematically cumbersome depending on the number of degrees-offreedom. This paper presents a kinematic model applicable for human sit-tostand movement scenario that will be used to obtain the dynamic model the FES induced

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