PENINGKATAN KOMPETENSI GURU DALAM MENERAPKAN MODEL PEMBELAJARAN KUANTUM DI SD NEGERI 006 BINTAN TIMUR TAHUN 2019

Berdasarkan hasil observasi terhadap guru-guru SD Negeri 006 Bintan Timur pada semester I tahun pelajaran 2019/2020, diketahui Kompetensi guru dalam menerapkan model pembelajaran Kuantum masih terkategori Cukup. Penelitian ini bertujuan untuk meningkatkan kompetensi guru-guru dalam menerapkan model pembelajaran Kuantum melalui supervisi edukatif. Metode penelitian ini menggunakan metode penelitian tindakan sekolah. Prosedur penelitian berbentuk siklus. Setiap siklus terdiri dari empat tahap meliputi: perencanaan, pelaksanaan tindakan, observasi dan refleksi. Metode pengumpulan data melalui observasi dan metode analisis datanya dilakukan secara deskriptif kuantitatif. Hasil penelitian menunjukan bahwa kompetensi guru-guru SD Negeri 006 Bintan Timur dalam menerapkan model pembelajaran Kuantum dapat ditingkatkan melalui supervisi edukatif. Terbukti dengan terjadinya peningkatan Kompetensi guru-guru dari Prasiklus yang terkategori Cukup dengan rata-rata 64,56, pada Siklus I menjadi Baik dengan rata-rata 76,38 dan pada Siklus II menjadi Amat Baik dengan rata-rata 92,06.Dapat disimpulkan bahwa kompetensi guru-guru SD Negeri 006 Bintan Timur dalam menerapkan model pembelajaran Kuantum dapat ditingkatkan melalui supervisi edukatif pada semester I tahun pelajaran 2019/2020

Mathematical simulation of graphene with modified c-c bond length and transfer energy

In nanotechnology research, allotropes of carbon like Graphene, Fullerene (Buckyball) and Carbon nanotubes are widely used due to their remarkable properties. Electrical and mechanical properties of those allotropes vary with their molecular geometry. This paper is specially based on modeling and simulation of graphene in order to calculate energy band structure in k space with varying the C-C bond length and C-C transfer energy. Significant changes have been observed in the energy band structure of graphene due to variation in C-C bond length and C-C transfer energy. In particular, this paper focuses over the electronic structure of graphene within the frame work of tight binding approximation. It has been reported that conduction and valence states in graphene only meet at two points in k-space and that dispersion around these special points is conical. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/2305

Prostatomegaly in a young adolescent: unusual presentation with rare diagnosis

Prostatic mesenchymal tumours are extremely uncommon benign tumors and very few cases have been published. Our case presented with diarrhea and increased urinary frequency with normal serum PSA levels. On multi-parametric MRI diffusely enlarging prostate with loss of zonal anatomy with possibility of inflammatory etiology was suggested. Trus guided biopsies were reviewed, which followed by immunohistochemistry aided in the diagnosis of ganglioneuroma. Surgical resection represents the only choice for both diagnosis and treatment. Because of the benign nature of ganglioneuroma, adjuvant chemo or radiotherapy is not indicated but regular follow-up is necessary for an early risk of potential local recurrence. Prostatic ganglioneuroma is the first case being reported to the best of our knowledge. The aim of the study was to document a newly diagnosed entity at this site and segregate more literature about it.

3D FSS with multiple transmission zeros and pseudo elliptic response

The three-dimensional frequency selective surface (3D FSS) with band reject multiple transmission zeros and pseudo-elliptic response is designed from two-dimensional (2D) periodic array of shielded micro strip lines to realize wide out-of–band radio wave rejection. The 3D FSS array consists of multimode cavities whose coupling with air can be controlled to obtain a desired frequency range. The proposed FSS with shorting via to ground exhibits pseudo-elliptic band-reject response in the frequency range from 6GHz to 14GHz. As the plane wave of linear polarization incidents perpendicularly to the shielded micro strip line with perfect electric conductor (PEC) and perfect magnetic conductor (PMC) boundary walls, two quasi-TEM modes are obtained known as air mode and substrate mode. The first 3D FSS design is a combination of two or more resonators. Furthermore, second 3D FSS design with three shorting vias result more elliptic band reject frequency response and a pass band transmission pole. All in phase resonators of design give transmission poles and out of phase combination of resonators give transmission zeros respectively. The proposed 3D FSS is designed and simulated using Ansys HFSS software. These designs exhibit an improved performance for many practical applications such as antenna sub-reflector, and spatial filters