Peningkatan Motivasi Murid Menggunakan Metode Demostrasi dalam Mempelajari IPA Kelas III di Sekolah Dasar

Motivation to learn in the third grades students of SDN 11 Padang Sepan Kapuas Hulu is still lacking, especially in the learning process. In connection with the above issues need to be improved to enhance the students learning motivation. The purpose of this research is to increase the intrinsic motivation and extrinsic motivation of student to learn and see the impact of learning on learning outcomes. Researchers used the descriptive method and from of action research is a collaboration between the researcher with colleagues. Setting and subject of research conducted in the classroom with the research subject is the teacher and students who are 17 students with composition 11 boys and 6 girls. Each cycle consist of planning, implementation, direct observation and data collection tool as guide for the student and teacher abservation data obtained from each cycle are : Pupil instrinsic motivation increased from the baseline to the third cycle 57,52%, and pupil motivation ekstrinsic increased from the baseline to the third cycle 79,00%

Steady-state charging of quantum batteries via dissipative ancillas

We investigate the steady-state charging process of a single-cell quantum battery embedded in an N-cell star network of qubits, each interacting with a fermion reservoir, collectively and individually in equilibrium and non-equilibrium scenarios, respectively. We find an optimal steady-state charging in both scenarios, which grows monotonically with the reservoirs' chemical potential and chemical potential difference. Where the high base temperature of the reservoirs has a destructive role in all parameter regimes. We indicate that regardless of the strength of the non-equilibrium condition, the high base chemical potential of the battery's corresponding reservoir can significantly enhance the charging process. On the other hand, a weak coupling strength can strongly suppress the charging. Consequently, our results could counteract the detrimental effects of self-discharging and provide valuable guidelines for enhancing the stable charging of open quantum batteries in the absence of an external charging field.Comment: 5 pqages, 6 figure

Quantum battery charging by non-equilibrium steady-state currents

We present an analysis of the availability and maximum extractable work of quantum batteries in the presence of charge and/or heat steady-state currents. Quantum batteries are modelled as non-interacting open quantum systems (mesoscopic systems) strongly coupled to two thermal and particle reservoirs within the framework of non-equilibrium Green's function theory in a steady-state regime. We found that the battery can be charged manifestly by a steady-state charge current compared to heat one, especially, in an off-resonant transport regime. It allows us to reliably access the performance of the quantum batteries in the high bias-charging regime.Comment: new Refs. adde