Goals Of Movement Research Articles

Teleoperation of ground-based mobile robotic systems with time delays in data transmission channels

The paper is devoted to the issues of teleoperation of ground mobile robots. Problems of moving a robot in an un-structured environment by commands of a human operator are considered. A significant problem that reduces a quality of control and often leads to loss of stability is time delays that occur in information channels of the complex. To partially compensate for the negative impact of the time delays, an approach based on the prediction of the local goal of movement, the real position of the robot at the time of commands formation and the model of an operator is proposed. To test the approach, a computer simulation of the robot control process was performed on the basis of a training complex based on the Unity engine. The task was consisted in controlling the movement of the robot along the reference trajectory displayed on the screen. The task execution time and the similarity of the recorded trajectory with the reference one were evaluated. The experimental results confirmed the positive effect of the proposed compensation method on the efficiency of the control system.

Tactile motor attention induces sensory attenuation for sounds

Sensory events appear reduced in intensity when we actively produce them. Here, we investigated sensory attenuation in a virtual reality setup that allowed us to manipulate the time of tactile feedback when pressing a virtual button. We asked whether tactile motor attention might shift to the tactile location that makes contact with the button. In experiment one, we found that a tactile impulse was perceived as more intense when button pressing. In a second experiment, participants pushed a button and estimated the intensity of sounds. We found sensory attenuation for sounds only when tactile feedback was provided at the time the movement goal was reached. These data indicate that attentional prioritization for the tactile modality during a goal-directed hand movement might lead to a transient reduction in sensitivity in other modalities, resulting in sensory attenuation for sounds.

Review: Creating the Creation Museum: How Fundamentalist Beliefs Come to Life, by Kathleen C. Oberlin

Review: <i>Creating the Creation Museum: How Fundamentalist Beliefs Come to Life</i>, by Kathleen C. Oberlin

Water: As a Social Order Decider in Central Himalayas

Any direct or indirect change in the physical, thermal, chemical, biological, radioactive properties of any part of the environment, by discharge, emissions or deposits of waste, so as to adversely affect any beneficial use or a condition which Hazardous to public health, safety or to animals, birds, wildlife, aquatic life or plants of all kinds. - Environment Report 1986 The concept of the present paper begins with the concept of water, forest, and land, which has been an important motto and main goal of an important movement (Chipko movement)- What is the blessing of the forest(क्या है जंगल के उपकार)soil water and wind(मिट्टी पानी और बयार)soil water and wind(मिट्टी पानी और बयार)basis for survival.(जिंदा रहने के आधार।) When it comes to the basic three things that have been described as the basis of life - forest, land and water, these three have equal access to every community, class, caste. and do they have access at present? the present research paper focuses on water and its access. Is. Especially its access to the community which comes under the purview of the marginalized society.

“We Must Work… Toward Justice in Action”: Grievances, Claims Making, and Spillover in the Idle No More Movement

The Idle No More (INM) movement emerged in reaction to Bill C-45, the Canadian Jobs and Growth Act, in November 2012, inspiring a new wave of activism. Central to the movement’s grievances are Indigenous resistance and environmental justice (EJ), positioning INM’s activities against neo-colonialism, exploitation, and environmental degradation. We build upon existing EJ movements, Indigenous Peoples/Indigenous Environmental Justice (IEJ) movements, and social movement spillover, grievance, and claims making literatures to understand the role of shared movement narratives in encouraging mobilization. INM relies on social media to educate members and construct and communicate movement goals and actions. Analyzing 6 months of Facebook comments, reflecting the INM movement’s emergence period, we argue that INM activists employ structural grievances embedded in previous EJ and Indigenous resistance movements, combined with emerging (incidental) grievances to articulate shared claims that address inequality and justice, appealing to a range of potential supporters. We offer an analysis of the emergent INM movement to consider the active intersection of EJ, Indigenous Peoples, and IEJ movements to mobilize and sustain movement activities in spite of Bill C-45’s passage.

Influence of Credit Availability Disbursement on the Level of Savings Among Members of Deposit Taking SACCO’s in Nyeri County

One of the key goals of the SACCO movement is to mobilize savings. However, despite having the largest SACCO sectors in the world, available data shows there is a low personal and household savings rate in Kenya. The majority of Kenyans do not have a savings culture and live each day as it comes. Kenyans are thought to save only 12% of their incomes on average, which is insufficient to support any serious investment in any sector of the economy. The current study therefore sought to assess the influence of credit availability disbursements on the level of savings. This study was guided by the permanent income hypothesis and loanable funds theory of interest. The study adopted a descriptive cross sectional survey research design. The target population was 156,000 active individual members of the 8 deposits taking SACCOs in Nyeri County. The sample of size was 400 respondents derived purposively. To obtain data, the researchers employed a standardized self-administered questionnaire. A pre-test was undertaken in deposit-taking SACCOs in Murang'a County to determine the instrument's reliability and validity. The data was analyzed using descriptive and regression analysis. In the analysis, the Statistical Package for the Social Sciences (SPSS) version 24 was utilized. Tables were used to present the data. Majority of the members agreed that loan ratio/multiplier was applied when granting credit facility. The study concluded that there was a positive significant relationship between credit availability disbursements and member’s savings level in the SACCOs. The study recommended that short-term promotional incentives may be one strategy to encourage people to save more, although evidence on their effectiveness is limited. The study recommends to SASRA to accommodate the total savings and deposits when ranking the performance of deposit taking Saccos other than considering only the total assets parameter.

Open Science for Non-Specialists: Making Open Science Meaningful Beyond the Scientific Community

AbstractA major goal of the open science movement is to make more scientific information available to non-specialists, but it has been difficult to meaningfully achieve that goal. In response, this paper argues for two steps: (1) focusing on the scientific content that is most relevant to non-specialist audiences; and (2) packaging that content in meaningful ways for those audiences. The paper uses a case study involving a major environmental health issue (namely, PFAS pollution) to illustrate how the proponents of open science can work with groups like government agencies, nongovernmental organizations, and extension services to implement these two steps.

Development for whom?: an Indigenous environmental justice movement in Bangladesh

ABSTRACT Indigenous peoples around the world tend to be disproportionately affected by resource extraction activities having access to fewer technical, legal and other resources to participate effectively in the decision-making process. Taking a resistance movement concerning the Phulbari Coal Project in Bangladesh, through qualitative research, this paper examines how Indigenous peoples frame their claims in a mining conflict situation. The Phulbari resistance movement took place more than a decade ago in Bangladesh, however, local Indigenous peoples, Bangalee farming communities, and activists still bear the spirit of the movement. As such, this study seeks to test the claims of how the Indigenous and farming communities, and the actions of national and transnational environmental justice organisations in the Phulbari resistance movement form part of an environmental justice movement. The paper argues that various components of Indigenous resistance and claims may contribute to the overall goals of the environment justice movement against powerful transnational corporations in the global South.

Civil Islam Movement is Responding to Environmental Degree Yogyakarta City (Study: Environmental Council For Muhammadiyah Regilonal Leadership in Yogyakarta

The purpose of this study is to examine the ideology that underlies the birth and development of the Muhammadiyah environmental movement and its relationship with the MLH PDM Yogyakarta City, strategies for achieving the movement's goals, and its contribution to improving the environmental quality of Yogyakarta City. This research was conducted using a qualitative case study method with primary and secondary data obtained from interviews, documentation, and observation. Meanwhile, the concepts used to analyze the data are Herbert Blumer's Symbolic Interactionism theory, the environmental movement and the Ecological Ethics of Islamic Pantheism, and civil society. The results showed that the environmental movement by MLH PDM Yogyakarta City was related to the MLH PPM movement or the Muhammadiyah environmental movement in general as a representation of Islamic-based civil society. In particular, the environmental movement MLH PDM Yogyakarta City is assessed from the commitment of its members in implementing the program from MLH PPM and the efforts taken to optimize program implementation through; (1) transfer of knowledge about environmental issues to external parties, (2) framing environmental issues through journalism activities, (3) innovation in the Shodaqoh Waste program, (4) collaboration with internal and external Muhammadiyah institutions, (5) holding periodic forums in the form of internal meetings, and (6) make plans to implement the Rainwater Harvesting movement in the PDM environment of Yogyakarta City. Meanwhile, in general, the Muhammadiyah environmental movement contributes to the improvement of the environment and economic, socio-cultural, and political aspects, especially in public policy

A neuromuscular model of human locomotion combines spinal reflex circuits with voluntary movements

Existing models of human walking use low-level reflexes or neural oscillators to generate movement. While appropriate to generate the stable, rhythmic movement patterns of steady-state walking, these models lack the ability to change their movement patterns or spontaneously generate new movements in the specific, goal-directed way characteristic of voluntary movements. Here we present a neuromuscular model of human locomotion that bridges this gap and combines the ability to execute goal directed movements with the generation of stable, rhythmic movement patterns that are required for robust locomotion. The model represents goals for voluntary movements of the swing leg on the task level of swing leg joint kinematics. Smooth movements plans towards the goal configuration are generated on the task level and transformed into descending motor commands that execute the planned movements, using internal models. The movement goals and plans are updated in real time based on sensory feedback and task constraints. On the spinal level, the descending commands during the swing phase are integrated with a generic stretch reflex for each muscle. Stance leg control solely relies on dedicated spinal reflex pathways. Spinal reflexes stimulate Hill-type muscles that actuate a biomechanical model with eight internal joints and six free-body degrees of freedom. The model is able to generate voluntary, goal-directed reaching movements with the swing leg and combine multiple movements in a rhythmic sequence. During walking, the swing leg is moved in a goal-directed manner to a target that is updated in real-time based on sensory feedback to maintain upright balance, while the stance leg is stabilized by low-level reflexes and a behavioral organization switching between swing and stance control for each leg. With this combination of reflex-based stance leg and voluntary, goal-directed control of the swing leg, the model controller generates rhythmic, stable walking patterns in which the swing leg movement can be flexibly updated in real-time to step over or around obstacles.

ДЕРЖАВОТВОРЕННЯ УКРАЇНСЬКОЇ ДАЛЕКОСХІДНОЇ РЕСПУБЛІКИ У 1917-1922 РОКАХ: КОНСТИТУЦІЯ НАЦІОНАЛЬНО-КУЛЬТУРНОЇ АВТОНОМІЇ УКРАЇНЦІВ НА ДАЛЕКОМУ СХОДІ

The purpose of the article is to clarify previously known but insufficiently researched facts, to discover new facts, to deepen the study of knowledge about the Green Wedge, to analyze the real state of the subject of research. Methodology. The methodology includes the analysis of the theoretical and source base with further generalization and formulation of relevant conclusions and recommendations. Given the interdisciplinary nature of the problem, the work uses a complex of general scientific, special legal, special historical and philosophical methods and approaches, as well as the principles of objectivity, historicism, systematicity and comprehensiveness. The results. In the course of the research, it was determined that on May 30, 1919, the Constitution of the National and Cultural Autonomy of Ukrainians in the Far East was approved at the II session of the Ukrainian Far Eastern Regional Council (with the participation of representatives of the Vladivostok, Mykyl-Usuriy, Iman, Khabarovsk, Svobodnen, Zabaikal and Manchurian Ukrainian District Councils) on May 30, 1919 , in which the structure, principles of formation and functioning, competence of national self-government bodies, as well as the issue of determining the civil-legal status of the Ukrainian population of the Far East are fixed. The Far Eastern Ukrainians sought to secure their freedom for an independent national and cultural life in their new homeland with the aim of preserving and freely developing these natural treasures, national identity and character. The main goal of the Ukrainian national movement in the Far East in 1917-1922 was the national self-determination of the Ukrainian population of the Far East in the form of national-territorial or national-cultural autonomy, the principles of which are contained in Article 6 of the Constitution of the National-Cultural Autonomy of Ukrainians in the Far East. Originality. In the course of the research, it was established that the research and coverage of the issue of the state formation of the Ukrainian people of the last century against the background of the events that took place since 2014, namely: the annexation of the Autonomous Republic of Crimea, the military invasion of Eastern Ukraine, as well as the full-scale military invasion on February 24, 2022, are quite relevant to the modern sovereign and independent, democratic, social, legal state of Ukraine, which are examples of Russian expansionist ambitions and imperialist policies. As a result, today the Ukrainian people stand in defense of democratic values, the European path of development, territorial integrity and state sovereignty of Ukraine. One of the stages of state formation of the Ukrainian people is the formation of the Ukrainian Far Eastern Republic, which lasted from 1917 to 1922. Practical significance. The results of the study can be used by central, regional and local state authorities in the formation of diaspora policy while addressing cultural, linguistic, legal and educational needs, as well as in the development of programs for the historical development of the Ukrainian people in the environment of the Ukrainian diaspora and on the territory of modern Ukraine.

The effect of spatial structure on presaccadic attention costs and benefits assessed with dynamic 1/f noise.

Already before the onset of a saccadic eye movement, we preferentially process visual information at the upcoming eye fixation. This 'presaccadic shift of attention' is typically assessed via localized test items, which potentially bias the attention measurement. Here we show how presaccadic attention shapes perception from saccade origin to target when no scene-structuring items are presented. Participants made saccades into a 1/f ('pink') noise field, in which we embedded a brief orientation signal at various locations shortly before saccade onset. Local orientation discrimination performance served as a proxy for the allocation of attention. Results demonstrate that (1) the presaccadic attention shift is accompanied by considerable attentional costs at the presaccadic eye fixation; (2) saccades are preceded by shifts of attention to their goal location even if they are directed into an unstructured visual field, but the spread of attention, compared to target-directed saccades, is broad; We conclude that the absence or presence of saccade target objects markedly shapes the distribution of presaccadic attention, and likely the underlying (space-based or object-based) cortical control mechanism. Our findings demonstrate the relevance of an item-free approach for measuring attentional dynamics across the visual field.

Microvariation and Change in the Romance Left Periphery

AbstractDespite the vast literature which has accrued on the fine structure of the Romance left periphery, there exists no diachronic account of the emergence of the considerable microvariation between Romance varieties today. Focussing in particular on the syntax of French and Venetan varieties, this article suggests that certain northern Romance varieties have diverged maximally from an Early Medieval Romance norm in which each left-peripheral Head attracts a wide variety of suitable Goals for movement, unlike the ‘innovative’ Romance grammars which emerge in the post-medieval period where the suitable class of Goals becomes restricted along categorial or information-structural grounds. The account predicts that the most ‘conservative’ Modern Romance grammars allow widespread argument fronting via movement, whereas their most ‘innovative’ counterparts show heavy restrictions on such operations.

Online on-Road Motion Planning Based on Hybrid Potential Field Model for Car-Like Robot.

The application of Middle-sized Car-like Robots (MCRs) in indoor and outdoor road scenarios is becoming broader and broader. To achieve the goal of stable and efficient movement of the MCRs on the road, a motion planning algorithm based on the Hybrid Potential Field Model (HPFM) is proposed in this paper. Firstly, the artificial potential field model improved with the eye model is used to generate a safe and smooth initial path that meets the road constraints. Then, the path constraints such as curvatures and obstacle avoidance are converted into an unconstrained weighted objective function. The efficient least-squares & quasi-Newton fusion algorithm is used to optimize the initial path to obtain a smooth path curve suitable for the MCR. Finally, the speed constraints are converted into a weighted objective function based on the path curve to get the best speed profile. Numerical simulation and practical prototype experiments are carried out on different road scenes to verify the performance of the proposed algorithm. The results show that re-planned trajectories can satisfy the path constraints and speed constraints. The real-time re-planning period is 184 ms, which demonstrates the proposed approach’s effectiveness and feasibility.

Different planning policies for the initial movement velocity depending on whether the known uncertainty is in the cursor or in the target: Motor planning in situations where two potential movement distances exist.

During goal-directed behaviors, individuals can be required to start a movement before deciding on the final goal. Previous studies have focused on the initial movement direction in situations involving multiple targets in different directions from the starting position and have shown that the movement is initiated in the average direction among the target directions. However, the previous studies only included situations with targets at equivalent distances, and the characteristics of motor planning in situations with multiple movement possibilities over different potential distances are unclear. In such situations, movement velocity is another important control variable. Furthermore, while previous studies examined situations with an uncertain motor target position, uncertainty can also exist in the effector position (e.g., body or tool locations). Therefore, we examined (1) whether the average output is confirmed in the initial movement velocity during execution in situations involving two potential movements with different distances. In addition, we examined (2) whether planning of the movement velocity can differ depending on the presence of uncertainty in the cursor or the target. In the main conditions, the participants were required to start a reaching movement with two potential movement distances; in the two-cursor condition, two cursors were presented before the start of the trial, and in the two-target condition, two targets were presented. As a control condition, a distance condition corresponding to each main condition was also performed. In the control condition, the initial movement velocity varied linearly with distance. Then, we tested whether the initial movement velocity in situations with two potential movement distances would follow the averaging output of the corresponding control condition. The results revealed that while the initial movement velocity in the two-target condition was slower than the averaging output, that in the two-cursor condition approached the averaging output. These results suggest that the velocity profile of the goal-directed movement is not simply averaged in a situation where two potential targets exist, and that there is a difference in the planning policy of the initial movement depending on whether the known uncertainty is for the movement goal or the effector.

Protest movements involving limited violence can sometimes be effective: Evidence from the 2020 BlackLivesMatter protests

SignificanceThe effects of recent protests for racial equality, particularly when they included violence, are currently of public and academic interest. To better understand these effects, we combine a dataset of all 2020 BlackLivesMatter protests with survey data containing measures of prejudice and support for police reform. Protests were not associated with reductions in prejudice, but were associated with increases in support for police reform. Specifically, a mix of nonviolent and violent protests was associated with an increase in police-reform support among conservatives living in liberal areas. This study highlights the importance of considering multiple measures of protest effectiveness and suggests that mass protest (including when it mixes nonviolence and violence) can be effective at advancing the movement's goals.

Interactions between sensory prediction error and task error during implicit motor learning.

Implicit motor recalibration allows us to flexibly move in novel and changing environments. Conventionally, implicit recalibration is thought to be driven by errors in predicting the sensory outcome of movement (i.e., sensory prediction errors). However, recent studies have shown that implicit recalibration is also influenced by errors in achieving the movement goal (i.e., task errors). Exactly how sensory prediction errors and task errors interact to drive implicit recalibration and, in particular, whether task errors alone might be sufficient to drive implicit recalibration remain unknown. To test this, we induced task errors in the absence of sensory prediction errors by displacing the target mid-movement. We found that task errors alone failed to induce implicit recalibration. In additional experiments, we simultaneously varied the size of sensory prediction errors and task errors. We found that implicit recalibration driven by sensory prediction errors could be continuously modulated by task errors, revealing an unappreciated dependency between these two sources of error. Moreover, implicit recalibration was attenuated when the target was simply flickered in its original location, even though this manipulation did not affect task error - an effect likely attributed to attention being directed away from the feedback cursor. Taken as a whole, the results were accounted for by a computational model in which sensory prediction errors and task errors, modulated by attention, interact to determine the extent of implicit recalibration.

Eye-hand coordination during online reach corrections is task dependent.

To produce accurate movements, the human motor system needs to deal with errors that can occur due to inherent noise, changes in the body, or disturbances in the environment. Here, we investigated the temporal coupling of rapid corrections of the eye and hand in response to a change in visual target location during the movement. In addition to a "classic" double-step task in which the target stepped to a new position, participants performed a set of modified double-step tasks in which the change in movement goal was indicated by the appearance of an additional target, or by a spatial or symbolic cue. We found that both the absolute correction latencies of the eye and hand and the relative eye-hand correction latencies were dependent on the visual characteristics of the target change, with increasingly longer latencies in tasks that required more visual and cognitive processing. Typically, the hand started correcting slightly earlier than the eye, especially when the target change was indicated by a symbolic cue, and in conditions where visual feedback of the hand position was provided during the reach. Our results indicate that the oculomotor and limb-motor system can be differentially influenced by processing requirements of the task and emphasize that temporal eye-hand coupling is flexible rather than rigid.NEW & NOTEWORTHY Eye movements support hand movements in many situations. Here, we used variations of a double-step task to investigate temporal coupling of corrective hand and eye movements in response to target displacements. Correction latency coupling depended on the visual and cognitive processing demands of the task. The hand started correcting before the eye, especially when the task required decoding a symbolic cue. These findings highlight the flexibility and task dependency of eye-hand coordination.

The Persistent Influence of December 2001: Collective Action in 21st‐Century Argentina

The protests of December 2001 in Argentina were the most visible manifestation of a larger cycle of contention, which continues to have a substantial influence on the forms, tactics and goals of social movements throughout the country. This paper provides a critical overview of these lasting effects. In particular, we focus on three areas where the consequences of the crisis for collective action have been particularly strong: performative politics, coalition‐building, and institutional support for grassroots networks. We conclude by reflecting on the implications for participatory democracy and the consolidation of a highly engaged civil society.

Quanta est nobis via? Re-reading Ut Unum Sint 25 years later

Published on 25 May 1995, Ut unum sint was the first ever and remains to the date the only papal encyclical entirely dedicated to ecumenism. Written thirty years after the Second Vatican Council, it was an important step on the way in the reception in the life of the Church of the principles and norms on ecumenism outlined in the conciliar decree Unitatis redintegratio. The article proposes a re-reading of the encyclical twenty-five years after its publication. It begins with an overview of the ecumenical engagement of John Paul II, for whom the search for Christian unity was one of the pastoral priorities of his pontificate. The article continues with a presentation of the ecumenical situation at the time of the publication of Ut unum sint marked by a growing skepticism towards ecumenism within denominations and a certain stagnation within the ecumenical movement. It then presents the vision of the Church and its unity which animates the encyclical, namely the concept of communion (communio/koinonia). The article then presents some characteristics of the ecumenical situation today and delineates the important challenges such as lack of a common vision of the goal of the ecumenical movement and a shift in the ecumenical paradigm from full visible unity to mutual recognition. It concludes with arguing that explored anew in the ecumenical dialogue against the background of the current condition of world Christianity, Ut unum sint may be a source of inspiration for the search for a fresh vision for the ecumenical movement in the 21st century.