Stage Movement Research Articles

ANALISIS GERAK LOKOMOTOR SISWA SEKOLAH DASAR KELAS 3 DAN 4 PADA MASA PANDEMI COVID-19

This study aims to provide an overview of the basic locomotor movement skills of elementary school students during the Covid-19 pandemic. The survey was conducted on 154 high school elementary school students aged 8 to 10 years in the Indonesian University of Education environment, the data was observed with instruments developed by Locomotor Movement Skills developed by (Gallahue & Donnelly, 2007), Locomotor Movement Skills related to running (running), jumping forward (horizontal jumping), jumping from a height (jumping from a height) and jumping on one leg (jumping). The researcher concluded that the motor skills stage of high-class elementary school students in school laboratory elementary schools during the pandemic showed students who had early stage (early stage) movement skills, namely 5% for the running test, 15% for the horizontal jump test, 18% for jumping from height test and jump test by 19%. Then for the transition stage (basic stage) there are 55% for the running test, 51% for the horizontal jump test, 57% for the jump test from a height and a jump test of 53%. For students who are already in the mature stage, namely 40% for running, 34% for horizontal jumping, 25% for jumping from a height test and 28% for the hopping test.

"Time of Theatre or How We Made a Fairy Tale with Auntie Ilonka, the Wild Woman"

"There is human time and there is wild time. But there is also the time of love and peace and care. And there is the time when stories are born. The text describes the puppet performance for adults called Ilonka. Ileana Lăcătuș, Ilona Lakatos was a Gypsy woman who lived with her daughters and their families in a small basement flat in a small street near the Slaughterhouse in Cluj Napoca. We had known each other for more than twenty years. For me she was the archetype of the Wild Woman, the timeless, who stands on the borderline between myth and reality like La Loba. This realization led me when I decided to bring her life stories to life in a puppet show, because who could convey this story, in which life can turn into death and death into life at any moment, more aptly and authentically than a puppet? Where can you step out of time (and space too) better than in a puppet theater? Aunt Ilonka’s life stories are minority stories and universal, because they are based on the same general female roles and situations, regardless of time and geographical coordinates, culture, social background, and skin color. These are built on four major Motifs: 1. “I was afraid” 2. “I say, it’s good” 3. Moving on, progress 4. Fairy godmothers The puppet show for adults entitled Ilonka 96 was co-created by Kata Palocsay, who selected the text from Csilla Könczei and Ilonka Lăcătuș’s book entitled Aunt Ilonka and directed the performance. András Hatházi, who dramatized the selection. Emese Erdei, who performed in the play. The scenery was designed and created by Kata Palocsay, Emese Erdei and Rebeka Hatházi. The stage movement was set by Enikő Györgyjakab. Dorottya Balog assisted in moving the marionette. The technical assistant of the performance was Júlia Sipos. The video projections include animated images of Gypsy artists’ works and an excerpt from the film by Csilla Könczei and Tibor Schneider, starring Ilonka Lăcătuș. Because time passes in vain. We in the theater are always in the present tense."

A novel method for 3D reconstruction in tight and restricted space based on improved line-structured light

Three-dimensional (3D) reconstruction techniques have been widely employed in many fields. But precise endoscopic 3D measurement inside of objects, especially in tight and restricted spaces, is still a challenge since there is no easy access for measurement tools. Endoscope with 2D-view function has been widely used. However, the precise measurement technology of the inner surface of small hollow objects has not been widely researched. The components of the existing endoscope three-dimensional measuring probe are complex, expensive and not performed well in accuracy. Thus, a novel method and a miniaturized endoscopic 3D sensor is introduced. To be suit in tight and restricted space, the sensor probe prototype has a maximum 6 mm in thickness. The miniatured sensor prototype is mainly based on improved line-structured light, which performs better in robustness and measurement accuracy than coded projection. Especially, the components are inexpensive and easily available, which reduces the manufacturing cost thus making it easily to popularize in industry. Correspondingly, to ensure the sensor measurement accuracy, we also proposed a calibration method for a miniature line-structured light system based on specially designed planar targets. It should be noted that the 3D extension of the line-structured light system relies on the movement of the translation stage. Taking full account of the characteristics of the sensor prototype, a high-precision direction calibration method of the translation stage based on joint multi-calibration position noise estimation is proposed. Finally, the accuracy experiment is carried out on the gauge block to verify that the measurement method proposed can achieve high-precision 3D reconstruction in a restricted space, and that the 3D reconstruction error is less than 10µm.

Detection speed optimization of the OI-RD microscope for ultra-high throughput screening.

The oblique-incidence reflectivity difference (OI-RD) microscope is a label-free detection system for microarrays that has many successful applications in high throughput drug screening. The increase and optimization of the detection speed of the OI-RD microscope will enable it to be a potential ultra-high throughput screening tool. This work presents a series of optimization methods that can significantly reduce the time to scan an OI-RD image. The wait time for the lock-in amplifier was decreased by the proper selection of the time constant and development of a new electronic amplifier. In addition, the time for the software to acquire data and for translation stage movement was also minimized. As a result, the detection speed of the OI-RD microscope is 10 times faster than before, making the OI-RD microscope suitable for ultra-high throughput screening applications.

Long-term stability of regenerative periodontal surgery and orthodontic tooth movement in stage IV periodontitis: 10-year data of a retrospective study.

To evaluate the long-term effectiveness of regenerative treatment of intra-bony defects in combination with consecutive orthodontic therapy (OT) in stage IV periodontitis. 22 patients with a total of 256 intra-bony defects were analyzed after regenerative surgery followed by OT initiated 3 months later. Changes in radiographic bone level (rBL) and probing pocket depths (PPD) were evaluated after 1 year (T1), final splinting (T2) and 10 years (T10). Mean rBL gain was significant with 4.63 mm (±2.43 mm) after 1 year (T1), 4.19 mm (±2.61 mm) at final splinting (T2) and 4.48 mm (±2.62 mm) after 10 years (T10). Mean PPD was significantly reduced from 5.84 mm (±2.05 mm) at baseline to 3.19 mm (±1.23 mm) at T1, to 3.07 mm (±1.23 mm) at T2 and to 2.93 mm (±1.24 mm) at T10. Pocket closure (PPD≤ 4mm) was achieved in 90% of all defects. Tooth loss amounted to 4.5%. Within the limitations of this retrospective study design, these 10-year findings suggest that in motivated and compliant patients with stage IV periodontitis and in need of orthodontic therapy an inter-disciplinary treatment can lead to favorable and stable long-term results. This article is protected by copyright. All rights reserved.

Enhancing Nanoparticle Detection in Interferometric Scattering (iSCAT) Microscopy Using a Mask R-CNN.

Interferometric scattering microscopy (iSCAT) is a label-free optical microscopy technique that enables imaging of individual nano-objects such as nanoparticles, viruses, and proteins. Essential to this technique is the suppression of background scattering and identification of signals from nano-objects. In the presence of substrates with high roughness, scattering heterogeneities in the background, when coupled with tiny stage movements, cause features in the background to be manifested in background-suppressed iSCAT images. Traditional computer vision algorithms detect these background features as particles, limiting the accuracy of object detection in iSCAT experiments. Here, we present a pathway to improve particle detection in such situations using supervised machine learning via a mask region-based convolutional neural network (mask R-CNN). Using a model iSCAT experiment of 19.2 nm gold nanoparticles adsorbing to a rough layer-by-layer polyelectrolyte film, we develop a method to generate labeled datasets using experimental background images and simulated particle signals and train the mask R-CNN using limited computational resources via transfer learning. We then compare the performance of the mask R-CNN trained with and without inclusion of experimental backgrounds in the dataset against that of a traditional computer vision object detection algorithm, Haar-like feature detection, by analyzing data from the model experiment. Results demonstrate that including representative backgrounds in training datasets improved the mask R-CNN in differentiating between background and particle signals and elevated performance by markedly reducing false positives. The methodology for creating a labeled dataset with representative experimental backgrounds and simulated signals facilitates the application of machine learning in iSCAT experiments with strong background scattering and thus provides a useful workflow for future researchers to improve their image processing capabilities.

DualMotion: Global-to-Local Casual Motion Design for Character Animations

Animating 3D characters using motion capture data requires basic expertise and manual labor. To support the creativity of animation design and make it easier for common users, we present a sketch-based interface DualMotion, with rough sketches as input for designing daily-life animations of characters, such as walking and jumping.Our approach enables to combine global motions of lower limbs and the local motion of the upper limbs in a database by utilizing a two-stage design strategy. Users are allowed to design a motion by starting with drawing a rough trajectory of a body/lower limb movement in the global design stage. The upper limb motions are then designed by drawing several more relative motion trajectories in the local design stage. We conduct a user study and verify the effectiveness and convenience of the proposed system in creative activities.

The trajectory patterns of single HIV-1 virus-like particle in live CD4 cells: A real time three-dimensional multi-resolution microscopy study using encapsulated nonblinking giant quantum dot.

The exploration of virology knowledge was limited by the optical technology for the observation of virus. Previously, a three-dimensional multi-resolution real-time microscope system (3D-MRM) was developed to observe the uptake of HIV-1-tat peptide-modified nanoparticles in cell membrane. In this study, we labeled HIV-1 virus-like particles (VLPs) with passivated giant quantum dots (gQDs) and recorded their interactive trajectories with human Jurkat CD4 cells through 3D-MRM. The labeled of gQDs of the HIV-1 VLPs in sucrose-gradient purified viral lysates was first confirmed by Cryo-electronic microscopy and Western blot assay. After the infection with CD4 cells, the gQD-labeled VLPs were visualized and their extracellular and intracellular trajectories were recorded by 3D-MRM. A total of 208 prime trajectories was identified and classified into three distinct patterns: cell-free random diffusion pattern, directional movement pattern and cell-associated movement pattern, with distributions and mean durations were 72.6%/87.6s, 9.1%/402.7sand 18.3%/68.7s, respectively. Further analysis of the spatial-temporal relationship between VLP trajectories and CD4 cells revealed the three stages of interactions: (1) cell-associated (extracellular) diffusion stage, (2) cell membrane surfing stage and (3) intracellular directional movement stage. A complete trajectory of HIV-1 VLP interacting with CD4 cells was presented in animation. This encapsulating method could increase the accuracy for the observation of HIV-1-CD4 cell interaction in real time and three dimensions.

Intralingual classification of nonverbal units: curtsies

The last decades have seen a drastic growth of researchers’ interest in nonverbal communication, especially in gestures and gestural behavior of both past and present. However, a systematic description of curtsy, a key gesture of the aristocracy in European and Russian cultures, satisfying the demands of nonverbal communication studies has not been attempted. The lack of such research defined the scope and objectives of this paper: determining the semiotic class of curtsy, distinguishing and analyzing its types, describing its physical realization, semantics, comparing curtsies and bows and determining their place within the Russian gestural system. The research is based on monographs on etiquette and protocol, memoires of the Russian courtiers of the 18-19-th centuries, books on stage movement and historical dances, dictionaries of the Russian language and illustrations from Russian literature. The results of multidimensional analysis demonstrate that we should classify curtsy as a communicative emblem, both an etiquette and ceremonial gesture, successfully assimilated by Russian culture and evolving with time. The research distinguishes types of the curtsy found in Russian culture, contexts and situations when it was used, its semantics, etc. Comparing curtsies and bows by several parameters (physical realization, active body parts, context and situations of use) helped to define key elements in performing curtsies and first distinguish them as a separate class of gestures, which should result in a change of their definitions in dictionaries where curtsy is invariably defined as a bow. The paper also gives an insight into the history of gestures, starting with Peter the Great and up to modern times. The results of the research will be of interest for researchers in the field of semiotics, nonverbal communication, intercultural communication, lexicography, ethnography and social anthropology.

An Efficient Capacity-based Routing Technique on MEDA-based Biochips

Micro Electrodes Dot Array (MEDA) based biochips are emerging microdroplets handling technology that empowers supervised fluids governance on a set of microelectrodes. The MEDA-based architecture enables the dynamic routing of droplets with variable sizes for better accuracy and convenience. Efficient droplet routing with prevention of cross-contamination and maintaining all fluidic restriction is the key challenging area on the MEDA-based biochips. We use a two-stage method that involves global and detailed routing. In order to determine the route capacity of every feasible routing path for each droplet, a graph denoting the capacity has been created during the global routing phase. The proposed method assigns the priority of each net depending on the influence factors of the other nets and blockages present in the bioassay. The proposed approach enables 80% of droplet routing without any cross-contamination, based on the First Priority Movement (FPM) and Second Priority Movement (SPM) in the first stage. A capacity graph provides maximum droplets flow using FPM and finds the suitable channel to reshape the size of the droplets to avoid collision on the routing paths to accomplish 100% routing. Experimental results demonstrate that even in complex bio-assays, our proposed phase-wise router reduces 20% of the latest arrival time (T la) and minimizes 9% average time (T avg) by decreasing 15% of microelectrodes count compared to other routing protocols.

Death of a Salesman

Death of a Salesman

Human–machine interaction controller of upper limb based on iterative learning method with zeroing neural algorithm and disturbance observer

In this paper, an iterative learning controller with zeroing neural algorithm and disturbance observer is proposed to solve the conflicting of human–machine interaction and disturbances in system. This paper presents a theoretical framework, which is able to process rigorous stability analysis of human–machine interaction control. The iterative learning controller is suitable for repetitive upper limb rehabilitation training. Combining tracking error dependent weight vector with zeroing neural algorithm is aimed to reduce the conflicts in various operations of motions between upper limb and machine. The disturbance observer is used to deal with eliminating the disturbance. In addition, simulations of the controller can effectively and safety assist upper limb movement in different training stages.

Estreno absoluto: Concert Version of Felipe Pedrell’s La Celestina (1902) in Madrid’s Teatro de la Zarzuela (2022)

<i>Estreno absoluto</i>: Concert Version of Felipe Pedrell’s <i>La Celestina</i> (1902) in Madrid’s Teatro de la Zarzuela (2022)

Towards a non-Western model of security assistance: How Iran assists militaries

ABSTRACT With the 1979 revolution, Iran’s Security Assistance (SA) underwent a significant transformation, from fragmented and ideologically-driven support for Islamic movements in the early post-revolutionary stage to making SA the centrepiece of its national security strategy. This article explores Iran' model of SA by addressing the following key questions: How have perceptions of SA and its role in post-revolutionary Iran’s strategic thinking changed? What constitutes key elements of the Iranian SA practice? Is there an ‘Iranian way' of assisting local military partners, and to what extent does it overlap with other states’ similar practices? The paper identifies a two-stage process of evolution, arguing that SA gradually evolved into a strategic tool to build a Tehran-led regional alliance model, boost Iran’s deterrence capability, and counter the US-led collective security architecture. With a hybrid ideological and anti-imperialist rationale at its core, relying on human bonds and personal loyalties, mixing asymmetric operations with sustained force projection, and using a centralized command structure with minimum public exposure, Tehran has introduced a unique model of security assistance. The paper shows how Iran has moved beyond a technical view of SA to gradually shape a holistic model with interwoven messianic, economic, and strategic dimensions.

ONO-2506 Can Delay Levodopa-induced Dyskinesia in the Early Stage

Background: Levodopa-induced dyskinesia (LID) is a common motor complication of levodopa (L-DOPA) treatment for Parkinson's disease (PD). In recent years, the role of astrocytes in LID has increasingly attracted attention. Objective: To explore the effect of an astrocyte regulator (ONO-2506) on LID in a rat model and the potential underlying physiological mechanism. Methods: Unilateral LID rat models, established by administering 6-hydroxydopamine (6-OHDA) into the right medial forebrain bundle through stereotactic injection, were injected with ONO-2506 or saline into the striatum through brain catheterization and were administered L-DOPA to induce LID. Through a series of behavioral experiments, LID performance was observed. Relevant indicators were assessed through biochemical experiments. Results: In the LID model of 6-OHDA rats, ONO-2506 significantly delayed the development and reduced the degree of abnormal involuntary movement in the early stage of L-DOPA treatment and increased glial fibrillary acidic protein and glutamate transporter 1 (GLT-1) expression in the striatum compared to saline. However, there was no significant difference in the improvement in motor function between the ONO-2506 and saline groups. Conclusions: ONO-2506 delays the emergence of L-DOPA-induced abnormal involuntary movements in the early stage of L-DOPA administration, without affecting the anti-PD effect of L-DOPA. The delaying effect of ONO-2506 on LID may be linked to the increased expression of GLT-1 in the rat striatum. Interventions targeting astrocytes and glutamate transporters are potential therapeutic strategies to delay the development of LID.

New Biodegradable Materials for Re-Thought Packaging from Pre-Consumer Wastes by Controlling the Storage Time as Method to Increase the Mechanical Recycling Efficiency

The influence of storage conditions on the mechanical recycling of pre-consumer waste (PRE-CW) from the manufacture of multilayer packaging films starting from starch compounds using a renewable-based polymer with PCL and PBAT, which are biodegradable conventional-based polyesters, was studied. It was found that, unlike materials based on conventional-origin polymers that accumulate in the environment for hundreds of years, the studied compounds degraded, even in the solid state, duringstorage in unventilated spaces and during the rainy hot summers with alternatingheat and rain. The degradation of the mechanically recycled compounds obtained from PRE-CW stored in such conditions was highlighted by the comparative analysis with the primary compounds, which proved the following: specific FTIR spectra changes; 2-3-times higher melt fluidity than for primary compounds; melting in successive processes over the entire positive temperatures range, up to 115 °C, such as in cases of compositional de-mixing of incompatible blends, faced to a single melting endotherm with a maximum at around 120 °C for the primar thermal degradation with the movement of the main destruction stages towards higher temperatures; a high quantity residue at 750 °C in air; dispersed mechanical resistance properties y compounds; crystallization at temperatures 10 °C-15 °C higher. The elimination of storage before the mechanical recycling of the pre-consumer waste from this type of polymeric compound fabrication is a way to increase the mechanical recycling efficiency while obtaining new materials with functional properties required by the applications.

A Morphing Point-to-Point Displacement Control Based on Long Short-Term Memory for a Coplanar XXY Stage.

In this study, visual recognition with a charge-coupled device (CCD) image feedback control system was used to record the movement of a coplanar XXY stage. The position of the stage is fedback through the image positioning method, and the positioning compensation of the stage is performed by the image compensation control parameter. The image resolution was constrained and resulted in an average positioning error of the optimized control parameter of 6.712 µm, with the root mean square error being 2.802 µm, and the settling time being approximately 7 s. The merit of a long short-term memory (LSTM) deep learning model is that it can identify long-term dependencies and sequential state data to determine the next control signal. As for improving the positioning performance, LSTM was used to develop a training model for stage motion with an additional dial indicator with an accuracy of 1 μm being used to record the XXY position information. After removing the assisting dial indicator, a new LSTM-based XXY feedback control system was subsequently constructed to reduce the positioning error. In other words, the morphing control signals are dependent not only on time, but also on the iterations of the LSTM learning process. Point-to-point commanded forward, backward and repeated back-and-forth repetitive motions were conducted. Experimental results revealed that the average positioning error achieved after using the LSTM model was 2.085 µm, with the root mean square error being 2.681 µm, and a settling time of 2.02 s. With the assistance of LSTM, the stage exhibited a higher control accuracy and less settling time than did the CCD imaging system according to three positioning indices.

Automated Camera Lucida Method with Colored Images through Integration of Hardware and Software in Microscopic Zooming.

Automating the camera Lucida method which is a standard way for focusing microscopic images is a very challenging study for many scientists. Hence, actually combining hardware and software to automate microscopic imaging systems is one of the most important issues in the field of medicine as well. This idea reduces scanning time and increases the accuracy of user's results in this field. Closed-loop control system has been designed and implemented in the hardware part to move the stage in predefined limits of 15°. This system produces 50 consecutive images from parasites at the mentioned spatial distances in two directions of the z-axis. Then, by introducing our proposed relational software with combining images, a high-contrast image can be presented. This colored image is focused on many subparts of the sample even with different ruggedness. After implementing the closed-loop controller, stages movement was repeated eight times with an average step displacement of 20 μm which were measured in two directions of the z-axis by a digital micrometer. On average, the movement's error was 1 μm. In software, the edge intensity energy index has been calculated for image quality evaluation. The standard camera Lucida method has been simulated with acceptable results based on experts' opinions and also mean squared error parameters. Mechanical movement in stage has an accuracy of about 95% which will meet the expectations of laboratory user. Although output-focused colored images from our combining software can be replaced by the traditional fully accepted Camera Lucida method.

Themes of Christian Spirituality, New Plastic Forms and Perception of Visual Formulas in the XXth Century French Musical and Theatrical Works

For the first time, the author of this article considered a set of themes related to Christian spirituality in the works by P. Claudel, A. Honegger and O. Messiaen which were created for the XXth century French synthetic theater and offered a new reading into the holiness and Christian behavior. New plastic forms of stage movement and dance, which depicted modern ways of organizing stage space, have been defined as an integral part of French works for musical theatre. What has also been found is the results of perceiving visual formulas in some of the XIIIth and XVth cenury paintings. Special plastic forms, which are subject to the laws of dance, shaped about a concept of "dancing form" in the XXth century French musical and theatrical works. In synthetic musical and theatrical works, a game of form, proportions, light and color was designed. Some XXth century French playwrights and musicians perceiving visual formulas in the XIIIth and XVth century paintings led to expanding the range of interacting elements pertaining to various arts in several musical and theatrical works. Those by P. Claudel, A. Honegger and O. Messiaen play a significant role on the stage and reveal both a “considerate attitude towards the past” and “mediation with modern life”, as H. G. Gadamer said.

Virtual Reality based Gaze-sensitive Aiming Task Platform: Role of Attention Allocation in Task Performance for Individuals with Autism and Typically Developing Individuals.

Individuals with Autism Spectrum Disorder (ASD) often exhibit difficulty in movement preparation and allocating attention towards different Regions of Interest (ROIs) of a visual stimulus. Though research has alluded to differences in movement preparation for aiming tasks between individuals with ASD and typically developing (TD) individuals, there is limited evidence (true for near-aiming tasks) on the contribution of the window (i.e., time duration) of movement preparation (i.e., the planning window preceding movement initiation) on one's aiming performance. However, investigation of the contribution of this planning window on one's performance in far-aiming task remains as majorly unexplored. Again, often one's eye movement leads the initiation of hand movement (for task execution) indicating the importance of monitoring one's eye movement in the planning stage, critical for far-aiming task. Most of the studies (in conventional settings) examining the role of gaze behavior on aiming performance have involved TD individuals and only a few involving individuals with ASD. Here, we have designed Virtual Reality (VR)-based Gaze-sensitive far-aiming (dart throw) task and monitored the looking pattern of participants while they interacted with the task environment. We carried out a study with 40 participants (20 in each of ASD and TD groups) to understand how the participant groups differed in task performance and gaze fixation within the movement planning window. We observed difference in the scan path and last fixation within the movement planning window before triggering the release of the dart with relevance to task performance.