RETRACTED : Composite parameters analysis with boundary element method

This article has been retracted at the request of the Editors-in-Chief, according to the Publication Ethics Policy and Publication Malpractice Statement.Please see: http://revue.ummto.dz/index.php/JMES/about/editorialPolicies#custom-2 This note is published, 26 June 202

RETRACTED : Influence parameters analysis in the gear helix correction

This article has been retracted at the request of the Editors-in-Chief, according to the Publication Ethics Policy and Publication Malpractice Statement.Please see : http://revue.ummto.dz/index.php/JMES/about/editorialPolicies#custom-2 This note is published, 25 June 202

Towards long-term social child-robot interaction: using multi-activity switching to engage young users

Social robots have the potential to provide support in a number of practical domains, such as learning and behaviour change. This potential is particularly relevant for children, who have proven receptive to interactions with social robots. To reach learning and therapeutic goals, a number of issues need to be investigated, notably the design of an effective child-robot interaction (cHRI) to ensure the child remains engaged in the relationship and that educational goals are met. Typically, current cHRI research experiments focus on a single type of interaction activity (e.g. a game). However, these can suffer from a lack of adaptation to the child, or from an increasingly repetitive nature of the activity and interaction. In this paper, we motivate and propose a practicable solution to this issue: an adaptive robot able to switch between multiple activities within single interactions. We describe a system that embodies this idea, and present a case study in which diabetic children collaboratively learn with the robot about various aspects of managing their condition. We demonstrate the ability of our system to induce a varied interaction and show the potential of this approach both as an educational tool and as a research method for long-term cHRI

Damage analysis of the laminated plate

This paper deals with the development of a numerical simulation methodology for estimating damages in laminate composite plates caused by a low-speed impact. Experimental tests were performed on laminate plates reinforced with weaven carbon fibers and epoxy resin. Three thickness plates were evaluated. The impact loads were transversal and punctual. Two lamina failure criteria were evaluated. The first is the maximum stress. The second is a proposed modification of the Hashin failure criterion. Four lamina degradation criteria were evaluated too. The numerical damaged areas and lengths were similar or greater than the experimental results

RETRACTED : Positional finite element solutions for laminated composites

This article has been retracted at the request of the Editors-in-Chief, according to the Publication Ethics Policy and Publication Malpractice Statement. Please see: http://revue.ummto.dz/index.php/JMES/about/editorialPolicies#custom-2 Reason : This paper duplicated parts of a master's thesis that had already appeared in the digital library of São Paulo University (Brazil) in May 2015, DOI:10.11606/D.18.2015.tde-27052015-171842. One of the conditions of submission of a paper for publication is that authors declare explicitly that they have written entirely original works, and should ensure that the sources of any ideas and/or words in the manuscript that are not their own have been properly attributed through appropriate citations and/or quotes. Plagiarism constitutes unethical publishing behaviour and is unacceptable. Any attempt of plagiarism should be followed by the rejection of the submitted manuscript. As such this article represents a severe abuse of the scientific publishing system. The scientific community takes a very strong view on this matter and we apologize to readers of the journal that this was not detected during the submission process. This note is published, 12 April 202

RETRACTED : Positional finite element solutions for laminated composites

This article has been retracted at the request of the Editors-in-Chief, according to the Publication Ethics Policy and Publication Malpractice Statement. Please see: http://revue.ummto.dz/index.php/JMES/about/editorialPolicies#custom-2Reason : This paper duplicated parts of a master's thesis that had already appeared in the digital library of São Paulo University (Brazil) in May 2015, DOI:10.11606/D.18.2015.tde-27052015-171842.One of the conditions of submission of a paper for publication is that authors declare explicitly that they have written entirely original works, and should ensure that the sources of any ideas and/or words in the manuscript that are not their own have been properly attributed through appropriate citations and/or quotes. Plagiarism constitutes unethical publishing behaviour and is unacceptable. Any attempt of plagiarism should be followed by the rejection of the submitted manuscript.As such this article represents a severe abuse of the scientific publishing system. The scientific community takes a very strong view on this matter and we apologize to readers of the journal that this was not detected during the submission process.This note is published, 12 April 202

NONLINEAR COMPOSITES STRUCTURAL ANALYSIS WITH VISCOELASTIC FIBERS

One of the objectives of this paper is the development of a computational code based on the positional finite element method, which uses any hyperelastic constitutive models to simulate the flat behavior when subjected to large displacements and large deformations. It is also an integral part of the objectives of this paper to develop a formulation based on the positional finite ele-ment method and an innovative strategy of immersion of finite elements of the simple bar type into elements of the plate type. This formulation should be able to include both viscoelastic and active behavior, as well as to allow the consideration of nonlinear relations between stresses and deformations. It is common to adopt hyperelastic constitutive laws. Few are the works that use the strategy of approaching the problem such as fibers immersed in a matrix. The immersion of fibers in the matrix makes it possible to include both a viscoelastic behavior in a simple and direct way. The examples are simple cases, some of them even with analyt-ical solutions, mainly for validation purposes of the presented formulations. By modeling a structure, the examples show the po-tentialities of the concepts and proposed formulations

Cancer Stem Cell-Associated Pathways in the Metabolic Reprogramming of Breast Cancer

Metabolic reprogramming of cancer is now considered a hallmark of many malignant tumors, including breast cancer, which remains the most commonly diagnosed cancer in women all over the world. One of the main challenges for the effective treatment of breast cancer emanates from the existence of a subpopulation of tumor-initiating cells, known as cancer stem cells (CSCs). Over the years, several pathways involved in the regulation of CSCs have been identified and characterized. Recent research has also shown that CSCs are capable of adopting a metabolic flexibility to survive under various stressors, contributing to chemo-resistance, metastasis, and disease relapse. This review summarizes the links between the metabolic adaptations of breast cancer cells and CSC-associated pathways. Identification of the drivers capable of the metabolic rewiring in breast cancer cells and CSCs and the signaling pathways contributing to metabolic flexibility may lead to the development of effective therapeutic strategies. This review also covers the role of these metabolic adaptation in conferring drug resistance and metastasis in breast CSCs