22 research outputs found

    Efektifitas Pengelolaan Pembelajaran Kewirausahaan melalui Metode Out Door Study dalam Upaya Meningkatkan Minat Belajar Siswa

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    The purpose of this action research was to determine the effectiveness of the method out door study in increasing student interest in vocational 2nd grade subject Entrepreneurship. The research method is a Class Action Research which consists of several cycles. In this research,instrument used is the observation for teachers, questionnaires and field notes. Observation sheet used by collaborators to observe teachers at the time of teaching. Methods of out door study succeeded in increasing student interest in the subject matter of Entrepreneurship. Out door study method makes students more enthusiastic about learning, to concentrate on the material, making the students think more developed, more comfortable learning environment, students are better able tounderstand the subject matter, students are more willing to express opinions and make students more activ

    EFEKTIFITAS PENGELOLAAN PEMBELAJARAN KEWIRAUSAHAAN MELALUI METODE OUT DOOR STUDY DALAM UPAYA MENINGKATKAN MINAT BELAJAR SISWA

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    The purpose of this action research was to determine the effectiveness of the method out door study in increasing student interest in vocational 2nd grade subject Entrepreneurship. The research method is a Class Action Research which consists of several cycles. In this research,instrument used is the observation for teachers, questionnaires and field notes. Observation sheet used by collaborators to observe teachers at the time of teaching. Methods of out door study succeeded in increasing student interest in the subject matter of Entrepreneurship. Out door study method makes students more enthusiastic about learning, to concentrate on the material, making the students think more developed, more comfortable learning environment, students are better able tounderstand the subject matter, students are more willing to express opinions and make students more activeKeywords: effectiveness, enterpreneurship, student interes

    Kefahaman Mengenai Tindak Balas Kimia Di Kalangan Pelajar Tingkatan Lima

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    Kajian ini bertujuan bagi mengenalpasti kefahaman serta konsep-konsep alternatif mengenai konsep tindak balas kimia di kalangan pelajar sekolah menengah Tingkatan Lima. Kajian ini dijalankan ke atas 100 orang pelajar di tiga buah sekolah menengah dalam daerah Pontian, Johor Darul Ta’zim yang telah dipilih secara rawak. Instrumen kajian ialah soalan-soalan berstruktur yang berkaitan dengan fenomena sains. Data yang diperolehi dianalisis dengan mengira peratusan untuk dibuat perbandingan menggunakan Concept Profile Inventory (CPI). Analisis menunjukkan bahawa kefahaman pelajar mengenai konsep tindak balas kimia adalah lemah. Kebanyakan daripada pelajar menggunakan idea alternatif apabila memberikan penjelasan mengenai sesuatu fenomena yang sepatutnya memerlukan penjelasan secara saintifik. Idea-idea alternatif boleh menghalang pembelajaran dan kefahaman konsep-konsep sains. Oleh itu, guru-guru perlu peka serta mengambil kira idea-idea alternatif tersebut dalam merancang sesuatu strategi pengajaran bagi meningkatkan kefahaman pelajar

    A novel rotational matrix and translation vector algorithm : geometric accuracy for augmented reality in oral and maxillofacial surgeries

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    Background: Augmented reality-based surgeries have not been successfully implemented in oral and maxillofacial areas due to limitations in geometric accuracy and image registration. This paper aims to improve the accuracy and depth perception of the augmented video. Methodology: The proposed system consists of a rotational matrix and translation vector algorithm to reduce the geometric error and improve the depth perception by including 2 stereo cameras and a translucent mirror in the operating room. Results: The results on the mandible/maxilla area show that the new algorithm improves the video accuracy by 0.30-0.40mm (in terms of overlay error) and the processing rate to 10-13 frames/s compared to 7-10 frames/s in existing systems. The depth perception increased by 90-100mm. Conclusion: The proposed system concentrates on reducing the geometric error. Thus, this study provides an acceptable range of accuracy with a shorter operating time, which provides surgeons with a smooth surgical flow

    A novel gaussian distribution and tukey weight (gdatw) algorithms : deformation accuracy for augmented reality (ar) in facelift surgery

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    In facelift surgeries, tracking the exact position of the patient’s facial nerves, blood vessels and other tissues can help the surgeons make the right decisions during surgery. Using Augmented Reality technologies that display the mapping of soft tissues beneath the skin, surgeons will be able to detect and locate the regions of cutting correctly prior to making the first cut. The study of Augmented Reality-assisted surgeries has not been found in facelift surgeries involving facial soft tissues, thus this journal can provide with invaluable first steps into the more concentrated studies involving this area. The current available systems in the oral and maxillofacial areas has shown limitation in supporting the elastic nature of facial soft tissues, which shape shifts and changes due to patient’s movement, or movement caused by surgeon during surgery. This paper aims to increase overlay accuracy by reducing elastic deformation error for Augmented Reality in facelift surgeries. The proposed system consists of a Gaussian Distribution and Tukey Weight (GDaTW) algorithm to reduce the deformation error after the geometric error algorithm had been performed. The test results confirm that the new algorithm improves the video accuracy by ~0.10 mm by reducing the overlay error caused by elastic deformation with the display framerate of 5–10 frames per second compared to 10–13 frames per second in existing system. The improvement proposed in this system increases the overlay accuracy by reducing elastic deformation error. The correct display of soft tissues in the mandibular region using Augmented Reality aims to aid plastic surgeons perform facelift surgeries with confidence, to avoid making the wrong cuts of vital areas occluded by the patient’s skin
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