Education and Therapy Through Art in the Reality of a Post-Pandemic School

The aim of the study presented in the article was to demonstrate the benefits of education and art therapy for students returning to traditional learning after the period of online education caused by the COVID-19 pandemic. The article presents selected Polish and foreign studies on the relationship between the use of information and communication technologies (ICT) and psychological deterioration in schoolage children. Taking into account the probable intensification of such cases related to the widespread use of ICT in teaching during the pandemic, the need for systematic psychological support of the majority of students in the reality of the “post-pandemic school” is observed. Hence, the suggestion to introduce elements of art therapy in Polish schools. Art therapy as an activity facilitating group integration, expression of emotions and self-regulation using art and creative expression was presented as a possibility of adapting educational activities to the new challenges and needs of students. The reflections of Herbert Read, which serve as the conceptual framework for the article, indicate the interpretation of his ideas as a prototype of modern, visionary education incorporating elements akin to the purposes of art therapy.

Singularity-Free Lie Group Integration and Geometrically Consistent Evaluation of Multibody System Models described in terms of Standard Absolute Coordinates

A classical approach to the MBS modeling is to use absolute coordinates, i.e. a set of (possibly redundant) coordinates that describe the absolute position and orientation of the individual bodies w.r.t. to an inertial frame (IFR). A well-known problem for the time integration of the equations of motion (EOM) is the lack of a singularity-free parameterization of spatial motions, which is usually tackled by using unit quaternions. Lie group integration methods were proposed as alternative approach to the singularity-free time integration. Lie group integration methods, operating directly on the configuration space Lie group, are incompatible with standard formulations of the EOM, and cannot be implemented in existing MBS simulation codes without a major restructuring. A framework for interfacing Lie group integrators to standard EOM formulations is presented in this paper. It allows describing MBS in terms of various absolute coordinates and at the same using Lie group integration schemes. The direct product group SO(3)xR3; and the semidirect product group SE(3) are use for representing rigid body motions. The key element of this method is the local-global transitions (LGT) transition map, which facilitates the update of (global) absolute coordinates in terms of the (local) coordinates on the Lie group. This LGT map is specific to the absolute coordinates, the local coordinates on the Lie group, and the Lie group used to represent rigid body configurations. This embedding of Lie group integration methods allows for interfacing with standard vector space integration methods.

Relationships between coach's leadership, group cohesion, affective states, sport satisfaction and goal attainment in competitive settings

We examined whether a perceived coach's leadership predicted group cohesion and whether group cohesion predicted intensity and direction of positive affect and negative affect experienced during competition, sport satisfaction and goal attainment following the completion of a sports competition. A sample of 296 competitive athletes (M age = 21.61; standard deviation = 6.32) participated in the study and completed a series of self-report questionnaires assessing the aforementioned constructs. A partial least square path modelling approach was used to examine the relationships between the study variables. Results of the structural partial least square path modelling model revealed that: (a) democratic coach behaviour negatively predicted Group Integration Task, (b) authoritarian coach positively predicted Individual Attractions to the Group-Social, and (c) reward positively predicted Group Integration Task. Moreover, partial least square path modelling results also revealed that (a) Individual Attraction to the Group-Task positively predicted the direction of negative affect during competition, (b) authoritarian coach marginally positively predicted Group Social Integration during competition, and (c) Group Social Integration marginally negatively predicted the direction of Negative Affects during competition. Thus, contradicting previous studies, results did not provide evidence of the empowering effect of democratic coach leadership on Group Integration Task. Finally, results provided evidence for the significant relationships between group cohesion and athletes’ competitive outcomes such as affective states experienced during competition.

Living together: An integrated acculturation–contact strategy to promote ethnic harmony between young British Muslims and Anglo-Britons

Acculturation theorists have proposed that minority and majority members’ endorsement of the cultural integration orientation should positively impact their mutual intergroup relations. To examine this claim, the study develops and experimentally tests a vicarious intercultural contact strategy designed to promote integration endorsement among a sample of 379 British youths (aged between 18 and 21 years), of whom 172 were British Muslims and 207 were White British. In line with theoretical expectations, results revealed that integration attained through vicarious contact, relative to a control condition, reduced respondents’ negative emotions, increased their positive emotions and inclusion of the other in the self (IOS), and improved their outgroup attitudes. These effects were only present in the Muslim group. Integration effects on outgroup attitude outcomes were mediated by intergroup emotions and IOS. We discuss the theoretical and practical implications of these findings.

Review of the exponential and Cayley map on SE(3) as relevant for Lie group integration of the generalized Poisson equation and flexible multibody systems

The exponential and Cayley maps on SE(3) are the prevailing coordinate maps used in Lie group integration schemes for rigid body and flexible body systems. Such geometric integrators are the Munthe–Kaas and generalized- α schemes, which involve the differential and its directional derivative of the respective coordinate map. Relevant closed form expressions, which were reported over the last two decades, are scattered in the literature, and some are reported without proof. This paper provides a reference summarizing all relevant closed-form relations along with the relevant proofs, including the right-trivialized differential of the exponential and Cayley map and their directional derivatives (resembling the Hessian). The latter gives rise to an implicit generalized- α scheme for rigid/flexible multibody systems in terms of the Cayley map with improved computational efficiency.

Singularity-Free Lie Group Integration of Multibody System Models Described in Absolute Coordinates

A classical approach to the modeling of multibody systems (MBS) is to use absolute coordinates, i.e. a set of (redundant) coordinates that describe the absolute position and orientation of the individual bodies w.r.t. to an inertial frame (IFR). A well-known problem for the time integration of the equations of motion (EOM) is the lack of a singularity-free parameterization of spatial motions, which is usually tackled by using unit quaternions. Lie group integration methods were proposed as alternative approach to the singularity-free time integration. Lie group methods are inherently coordinate free and thus incompatible with any absolute coordinate description. In this paper, an integration scheme is proposed that allows describing MBS in terms of arbitrary absolute coordinates and at the same using Lie group integration schemes, which allows for singularity-free time integration. Moreover, the direct product group SO (3) × ℝ3 as well as the semidirect product group SE (3) can be use for representing rigid body motions, which is beneficial for constraint satisfaction. The crucial step of this method, which renders the underlying Lie group integration scheme applicable to EOM in absolute coordinates, is the update of the (global) absolute coordinates in terms of the (local) coordinates on the Lie group by means of a local-global transitions (LGT) transition map. This LGT map depends on the used absolute coordinates and the local coordinates on the Lie group, but also on the Lie group itself used to represent rigid body configurations (respectively the deformation field of flexible bodies), i.e. the geometry of spatial frame motions. The Lie group formulation is thus embedded, which allows interfacing with standard vector space integration methods.

Improved Fake Reviews Detection Model Based on Vertical Ensemble Tri-Training and Active Learning

People’s increasingly frequent online activity has generated a large number of reviews, whereas fake reviews can mislead users and harm their personal interests. In addition, it is not feasible to label reviews on a large scale because of the high cost of manual labeling. Therefore, to improve the detection performance by utilizing the unlabeled reviews, this article proposes a fake reviews detection model based on vertical ensemble tri-training and active learning (VETT-AL). The model combines the features of review text with the user behavior features as feature extraction. In the VETT-AL algorithm, the iterative process is divided into two parts: vertical integration within the group and horizontal integration among the groups. The intra-group integration is to integrate three original classifiers by using the previous iterative models of the classifiers. The inter-group integration is to adopt the active learning based on entropy to select the data with the highest confidence and label it, and as the result of that, the second generation classifiers are trained by the traditional process to improve the accuracy of the label. Experimental results show that the proposed model has a good classification performance.

Group Integration Method in Integral Calculus at the College of Engineering University of Eastern Philippines

This study intended to determine the effect of Group Integration Method on academic performance in Integral Calculus at the College of Engineering University of Eastern Philippines. It employed a quasi-experimental design that involved two sections of second year BSEE students enrolled in Integral Calculus in the College of Engineering. The students in these sections were comparable since their pre-test on a 1-1 scoring system were not significantly different using the t-test of independent sample at 0.05 level of significance in Integral Calculus ability of the students between the control and experimental group. The average pre-test scores per class were determined to set the experimental and control group. The former bears the lower average scores, which needs more attention through cooperative learning among group members while the latter bears the higher ones since the students can handle individual learning. The individual pre-test scores were used in the categorization of the students in both control and experimental groups. The scores were ranked and categorized into three (3): the High Performer (HP), the Average Performer (AP) and the low Performer (LP). The result showed that most of the respondents for both groups are males, first timers and average students with respect to differential calculus academic performance. As to the age bracket, the data shows majority of the students were (18-20) years old. The outcomes of the study further showed that the respondents exposed to the Integration Method and Traditional Method had the overall interpretation of failed rating at the start of the study. As the study progressed 8 respondents from the Group Integration and 12 respondents were added in Traditional method above failing stage considering the post-test administered to both groups. The T-test at 0.05 level of significance stressed out that post-test and combined tests for pre-test/post-test significantly differs for both Group Integration and Traditional methods of instruction. Finally, as to the academic performance, Group Integration is better than Traditional Methods of Instruction. This implies that the intervention aided the students to boost their skills in Integral calculus under the experimental group.

WGI-Net: A weighted group integration network for RGB-D salient object detection

Salient object detection is used as a pre-process in many computer vision tasks (such as salient object segmentation, video salient object detection, etc.). When performing salient object detection, depth information can provide clues to the location of target objects, so effective fusion of RGB and depth feature information is important. In this paper, we propose a new feature information aggregation approach, weighted group integration (WGI), to effectively integrate RGB and depth feature information. We use a dual-branch structure to slice the input RGB image and depth map separately and then merge the results separately by concatenation. As grouped features may lose global information about the target object, we also make use of the idea of residual learning, taking the features captured by the original fusion method as supplementary information to ensure both accuracy and completeness of the fused information. Experiments on five datasets show that our model performs better than typical existing approaches for four evaluation metrics.