Aplikasi Pembelajaran Interaktif “Perang Padri”  Menggunakan X-Box Kinect Untuk Meningkatkan Minat Siswa  Dalam Mempelajari Sejarah Bangsa Indonesia

A well recognition and understanding national history plays an important role in shaping the character of nation, especially Padri War history which tells about a dispute between two clans but then allied to defend against invaders. History’s subject in school which is taught by telling story and reading books makes student not interested in studying history. In this case, we need a different approach to makes student in fifth grade more interested to learn it. One of alternative learning media that can be applied to fifth graders is the application of Padri War. In this application, Padri War is described in 3D animation video and there are many of trivial questions in it to test user ability. The result of the application testing conducted to five teacher respondents concludes this interactive application could be the best alternative learning method for fifth grade elementary school student today. The conclusion reflects on the assessment indicators of 80% material aspect, 72.5 % general aspect, 78,9% quality display, presentation of the material to 75%, and 84% of user interaction. On the student respondents, the visual design aspect in the Padri War learning is worth 79.3%. Overall, presentation study material in the form of 3D animation video would certainly increase the interest of elementary students in learning history.

Download Full-text

Astrolabe alternative learning based on software and interactive application

International Journal of ADVANCED AND APPLIED SCIENCES ◽

10.21833/ijaas.2021.06.012 ◽

2021 ◽

Vol 8 (6) ◽

pp. 103-109

Author(s):

Safiai et al. ◽

Keyword(s):

Qualitative Research ◽

Content Analysis ◽

Teaching And Learning ◽

Alternative Learning ◽

Research Results ◽

Interactive Application

Technology-based Teaching and Learning (T&L) is currently a highly discussed matter. Using technology as optimally and maximally as possible in the T&L process is seen to be greatly effective for both students and teachers. This research discusses alternative learning of astrolabe science using software and interactive application. This is qualitative research using content analysis and observation approach. Research results find that some software and interactive application, free or with fees payable, may be used in the T&L process relating to the astrolabe. It is hoped that this research may be helpful for students to understand the use of astrolabe for observation activities and calculations in astronomy, at once improving progress in the development of astronomy in Malaysia.

Download Full-text

INTERACTIVE APPLICATION DEVELOPMENT BASED ON THE JOINT USE OF THE HASKELL FUNCTIONAL PROGRAMMING LANGUAGE AND Qt FRAMEWORK

Vestnik komp iuternykh i informatsionnykh tekhnologii ◽

10.14489/vkit.2021.06.pp.049-056 ◽

2021 ◽

pp. 49-56

Author(s):

O. V. Konyuhova ◽

E. A. Kravtsova ◽

A. Yu. Uzharinskiy

Keyword(s):

Side Effect ◽

Data Exchange ◽

User Interaction ◽

Application Development ◽

Front End ◽

Interactive Application ◽

Computational Part ◽

Composition Of Functions ◽

Algorithm Implementation ◽

The Impact

The Haskell language allows you to efficiently implement computational algorithms. Higher-order functions, composition of functions, lazy calculations allow you to create functional programs with a clear structure that most fully reflect the logic of the algorithm being implemented. This allows you to get programs that are more compact and more flexible to make changes. Also, the use of pure functions allows you to avoid errors associated with the influence of the “side effect”. The I / O operations required for user interaction use special constructs and functions with a “side effect”, which violates the functional purity of the Haskell language. The approach considered in the article involves the allocation of two parts in an interactive application: interface (front-end) and computing (back-end), interacting with each other by exchanging parameters. The interface part of the application organizes the interaction with the user through the graphical user interface, and the computational part provides the algorithm implementation. To implement front-end is proposed to use the Qt Creator framework with C++ language, and to implement the back-end – the Haskell language. Using a shared address space (files) for data exchange minimizes the impact of the “outside world” on the Haskell program. We also consider a possible way of the software implementation of this approach and example of its applying to develop an application for solve the k-shortest path problem in a graph.

Download Full-text

Atomic Resolution in Crystal Aperture Stem

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100179932 ◽

1990 ◽

Vol 48 (1) ◽

pp. 236-237

Author(s):

J T Fourie

Keyword(s):

Optical System ◽

Spherical Aberration ◽

Three Dimensional ◽

Transmission Function ◽

Optical Systems ◽

Bragg Angle ◽

Electron Optical System ◽

Intimate Contact ◽

Diffraction Effects ◽

Design Aspect

The attempts at improvement of electron optical systems to date, have largely been directed towards the design aspect of magnetic lenses and towards the establishment of ideal lens combinations. In the present work the emphasis has been placed on the utilization of a unique three-dimensional crystal objective aperture within a standard electron optical system with the aim to reduce the spherical aberration without introducing diffraction effects. A brief summary of this work together with a description of results obtained recently, will be given.The concept of utilizing a crystal as aperture in an electron optical system was introduced by Fourie who employed a {111} crystal foil as a collector aperture, by mounting the sample directly on top of the foil and in intimate contact with the foil. In the present work the sample was mounted on the bottom of the foil so that the crystal would function as an objective or probe forming aperture. The transmission function of such a crystal aperture depends on the thickness, t, and the orientation of the foil. The expression for calculating the transmission function was derived by Hashimoto, Howie and Whelan on the basis of the electron equivalent of the Borrmann anomalous absorption effect in crystals. In Fig. 1 the functions for a g220 diffraction vector and t = 0.53 and 1.0 μm are shown. Here n= Θ‒ΘB, where Θ is the angle between the incident ray and the (hkl) planes, and ΘB is the Bragg angle.

Download Full-text