Boosting reaction kinetics and improving long cycle life in lamellar VS2/MoS2 Heterojunctions for superior sodium storage performance

The development of high-performance rechargeable batteries highly depends on the rational structure/phase design of advanced electrode materials. A unique 2D lamellar stacked nanosheet VS2/MoS2 heterostructure is synthesized using a simple...

Phase-locked constructing dynamic supramolecular ionic conductive elastomers with superior toughness, autonomous self-healing and recyclability

Stretchable ionic conductors are considerable to be the most attractive candidate for next-generation flexible ionotronic devices. Nevertheless, high ionic conductivity, excellent mechanical properties, good self-healing capacity and recyclability are necessary but can be rarely satisfied in one material. Herein, we demonstrate a novel ionic conductor design, dynamic supramolecular ionic conductive elastomers (DSICE), via “phase-locked” strategy, wherein “locking soft phase” polyether backbone conducts lithium-ion (Li+) transport and the combination of dynamic disulfide metathesis and stronger supramolecular quadruple hydrogen bonds in the hard domains contributes to the self-healing capacity and mechanical versatility. The dual-phase design performs its own functions and the conflict among ionic conductivity, self-healing capability, and mechanical compatibility can be thus defeated. The well-designed DSICE exhibits high ionic conductivity (3.77×10−3 S m−1 at 30°C), high transparency (92.3%), superior stretchability (2615.17% elongation), strength (27.83 MPa) and toughness (164.36 MJ m−3), excellent self-healing capability (~99% at room temperature) and favorable recyclability. This work provides a new strategy for designing the advanced ionic conductors and offers promise for flexible iontronic devices or solid-state batteries.

pyMPEALab Toolkit for Accelerating Phase Design in Multi-principal Element Alloys

Multi-principal element alloys (MPEAs) occur at or nearby the centre of the multicomponent phase space, and they have the unique potential to be tailored with a blend of several desirable properties for the development of materials of future. The lack of universal phase diagrams for MPEAs has been a major challenge in the accelerated design of products with these materials. This study aims to solve this issue by employing data-driven approaches in phase prediction. A MPEA is first represented by numerical fingerprints (composition, atomic size difference , electronegativity , enthalpy of mixing , entropy of mixing , dimensionless $$\Omega$$ Ω parameter, valence electron concentration and phase types ), and an artificial neural network (ANN) is developed upon the datasets of these numerical descriptors. A pyMPEALab GUI interface is developed on the top of this ANN model with a computational capability to associate composition features with remaining other input features. With the GUI interface, an user can predict the phase(s) of a MPEA by entering solely the information of composition. It is further explored on how the knowledge of phase(s) prediction in composition-varied $$\hbox {Al}_x$$ Al x CrCoFeMnNi and $$\hbox {CoCrNiNb}_x$$ CoCrNiNb x can help in understanding the mechanical behavior of these MPEAs. Graphic Abstract

Media Permainan Jumanji FlashCard untuk Pembelajaran Fisika SMP Materi Pengukuran

This study aimed to develop a Jumanji flashcard game media for valid and practical media. Research and development methods are used in this study. The research phase starts from potential and problem analysis, data collection phase, product design phase, design validation phase, design revision phase, trial and product revision phase. Interview sheets, questionnaires and documentation obtained research data. Data collection techniques used interview sheets, material expert validation questionnaires, media expert questionnaires and student response questionnaires. The results obtained are the feasibility of the Jumanji flashcard game based on the assessment of material experts with a percentage of 88.67%, media experts 90%, and student responses 92% in the small group trial obtained very good category. Aspects of material validation consist of accuracy, depth and completeness of the material. Aspects of media expert validation consist of function, design and quality of media. Student responses related to the practice of the Jumanji flashcard game media. The Jumanji flashcard game media developed was feasible and could be used in physics learning for junior high school students for measurement.

PENGEMBANGAN FLIPPED CLASSROOM PADA MATA KULIAH KALKULUS INTEGRAL

Penelitian ini bertujuan mengembangkan model pembelajaran flipped classroom dan perangkat pembelajaran berupa buku ajar dan video pembelajaran pada mata kuliah kalkulus integral. Penelitian pengembangan mengacu pada model pengembangan Plomp yang terdiri atas fase kajian awal, desain, realisasi, tes dan evaluasi, revisi serta implementasi. Perangkat yang dikembangkan adalah rencana pembelajaran mengikuti sintaks pembelajaran flipped classroom, bahan ajar serta video pembelajaran. Sumber data adalah mahasiswa pendidikan matematika yang menawarkan mata kuliah Kalkulus Integral sebanyak 70 orang dan sebelum model ini dikembangkan di validasi oleh dua ahli pembelajaran matematika dari Universitas Pattimura. Hasil penelitian menunjukkan bahwa model pembelajaran flipped classroom dan perangkat pembelajaran berupa buku ajar dan video pembelajaran layak untuk digunakan.This study aims to develop a flipped classroom learning model and learning tools in the form of textbooks and learning videos in integral calculus courses. Development research refers to the Plomp development model which consists of the initial study phase, design, realization, test and evaluation, revision and implementation. The tools developed are lesson plans following the flipped classroom learning syntax, teaching materials and learning videos. The data source is mathematics education students who offer 70 Integral Calculus courses and before this model was developed it was validated by two mathematics learning experts from Pattimura University. The results showed that the flipped classroom learning model and learning tools in the form of textbooks and learning videos were feasible to use.

Development of Augmented Reality Application for Learning Computer Network Device

<span lang="EN-US">Applied augmented reality works by detecting imageries or pictures, normally called markers, by using smartphone camera that detects these preplaced markers. Augmented reality has seen wide application in various fields, one of them is education. In the field of education, augmented reality is utilized to make learning process more engaging and attractive. Starting from the problem that learning computer networks on introduce to network device which is currently still delivered conventionally. So, this research makes a solution to this problem by developing learning media using augmented reality (AR) technology, which is a technology that combines two-dimensional or three-dimensional virtual objects into a real environment and then projects these virtual objects in real time. The purpose of this research is to build AR-based applications in learning computer network devices in order to increase understanding, generate motivation and student interest. The methodology used in this research consist of Envisioning Phase(Problem Identification, Planning Phase(Planning), Developing Phase(Design), Stabilizing Phase(Testing), Deploying Phase(Implementation). This study uses 31 students as sample and the data was analyzed using the SUS(System Usability Scale). The result show </span><span lang="EN-US">evaluates the usability using SUS of 31 respondents and it can be concluded that this AR application can be accepted by these students in its use with </span><span lang="EN-US">SUS Score obtained was 78.5</span>

Development of a professional practice competency for undergraduate nursing students: A mixed-method study

Nursing professionalism relates to the knowledge, skills, conduct, behaviour and attitudes of registered nurses. Difficulties related to student assessment of professionalism have been anecdotally described as a disparity between the meaning of the term ‘professionalism’ to nurses and its application and measurement in clinical practice. The aim of this study was to develop a professional practice competency for undergraduate nurses on clinical placement. An exploratory sequential mixed-methods approach with a two-phase design was used to develop the competency. Phase one, the Delphi method with 16 expert nurses, was used to develop the competency. This involved the thematic analysis of key statements over four rounds, five key themes were identified (attitudes, communication, knowledge, standards, relationships) that formed the framework and 33 individual competency statements. This was followed by phase 2, content validity, using the Table of Specification with 58 clinical facilitators. The findings confirmed the statements (80% consensus) deemed important to assess the essential construct of nursing professional practice. It is envisaged that the professional practice competency will assist student insight into their professional role and subsequently allow adjustment and achievement of professional practice competency.