Aplikasi Web Sistem Informasi Geografis Untuk Multi Risiko Bencana Aceh

Aceh merupakan salah satu wilayah di Indonesia yang rawan terhadap bencana alam seperti gempa bumi, tanah longsor, letusan gunung api, kemarau, abrasi, tsunami, banjir dan lain-lain. Salah satu faktor pengurangan risiko bencana (PRB) adalah tersedianya informasi yang dapat diakses oleh publik. Sehingga aplikasi web sistem informasi geografis untuk multi risiko bencana sangat penting di Aceh. Aplikasi ini bertujuan untuk meningkatkan kesadaran dan kesiap-siagaan dari pengambil keputusan dan masyarakat dalam upaya PRB. Aplikasi ini dibangun dan dirancang berdasarkan arsitektur client-server dengan menggunakan software open source sebagai penyedia data geospatial yang dapat diakses melalui web berbasis sistem informasi geografis (SIG). Adapun hasil aplikasinya adalah visualisasi peta-peta multi risiko bencana alam Aceh yang dapat memberikan informasi daerah rawan bencana kepihak terkait dengan cepat, tepat dan akurat secara online melalui internet

Peningkatan Kemampuan Sains Melalui Kegiatan Eksperimen Anak Usia Dini di TK Mawar

Peningkatan  Kemampuan Sains Melalui Kegiatan Eksperimen Anak Usia 5-6 Tahun di Taman Kanak-Kanak Mawar. Masalah penelitian ini adalah rendahnya kemampuan sains anak terutama pengenalan konsep sains sederhana. Penelitian ini bertujuan untuk mengetahui peningkatan kemampuan sains melalui kegiatan eksperimen di Taman Kanak-kanak Mawar. Jenis Penelitian yang digunakan dalam penelitian ini adalah penelitian kualitatif dan pendekatan Penelitian Tindakan Kelas (PTK) yang terdiri dari dua siklus dimana setiap  siklus dilaksanakan sebanyak 2 kali pertemuan. Fokus penelitian ini adalah kemampuan sains anak dan melalui kegiatan eksperimen. Prosedur penelitian meliputi perencanaan, pelaksanaan tindakan, observasi, dan refleksi. Subjek penelitian ini adalah anak kelompok B Taman Kanak-kanak Mawar terdiri dari 1 orang guru dan anak yang berjumlah 14 orang. Teknik pengumpulan data yang digunakan yaitu ceklist. Hasil penelitian menunjukkan bahwa kegiatan eksperimen pada anak di Taman Kanak-kanak Mawar dapat meningkatkan kemampuan sains yang terdiri mengenal konsep sains sederhana dalam kehidupan sehari-hari dan mengenal kegiatan yang bersifat eksploratif/menyelidik menjadi meningkat, Hal tersebut dilihat dari hasil observasi penilaian anak pra siklus yaitu kemampuan anak  dari hasil pelaksanaan dengan persentase 48% dan pada siklus I dengan kemampuann  anak dengan persentase 62 %dengan kategori berkembang sangat baik dan pada siklus II dengan persentase 88 % berada pada kategori berkembang sangat baik. Hasilnya dapat disimpulkan bahwa dengan metode tersebut, kemampuan anak terhadap sains dapat meningkat. &nbsp

Efisiensi Daya Protokol Quantize and Forward Pada Sistem Komunikasi Kooperatif Multi-relay

One of effective diversity techniques to combat fading on wireless channel is a cooperative communication system in which a source sends information through several relays and then forward it to a destination. A cooperative communication system has shown increased the system performance and reduced the energy consumption. However, it depends on the used relay mechanism that is relay protocols such as quantize and forward (QF) and amplify and forward (AF). In the previous research, energy efficiency of AF relay has investigated for a single-relay cooperative system, but multi-relay is more practical. Therefore, this research focuses on power efficiency in multi-relay cooperative communication system using QF protocol. The research method used is mathematical analysis and computer simulation for outage probability and power efficiency in the multi-relay QF. Simulation result found that multi-relay QF system could provide a high power efficiency, but the efficiency is reduced when the distance ratio increases. Power efficiency can be increased by adding the number of relays in the system. A comparison of power efficiency for QF and AF protocols has simulated, in which power efficiency of multi-relay QF is higher than that of multi-relay AF at distance ratio and power transmit. Thus, multi-relay QF system can provide high performance and power efficiency in the cooperative communication system

Pengaruh Keaktifan dalam Organisasi terhadap Motivasi Belajar Matematika Siswa SMA Negeri 1 Campalagian

Penelitian ini merupakan jenis penelitian expost facto dengan pendekatan kuantitatif yang bertujuan untuk mengetahui pengaruh keaktifan dalam ornagisasi terhadap motivasi belajar matematika siswa SMA Negeri 1 Campalagian. Penelitian ini dilakukan di SMA Negeri 1 Campalagian dengan subjek penelitian siswa yang masuk dalam pengurus OSIS tahun ajaran 2016/2017 yang berjumlah 29 responden. Penelitian ini menggunakan dua variabel yaitu: variabel bebas : 1). keaktifan dalam organisasi (X), 2). variabel terikat: motivasi belajar matematika (Y). Teknik pengumpulan data dalam penelitian ini menggunakan angket yang terdiri atas instrumen penelitian keaktifan dalam organisasi dan motivasi belajar matematika dengan skala Likert. Keabsahan data diperoleh melalui uji validitas dan riliabilitas instrumen. Pengujian prasyarat analisis meliputi uji normalitas dan linearitas. Analisis data untuk uji hipotesis menggunakan analisis regresi linear sederhana dan untuk mengetahui besarnya kontribusi pengaruh variabel bebas terhadap variabel terikat digunakan koefisien determinasi. Hasil penelitian menunjukan bahwa ada pengaruh antara keaktifan dalam organisasi terhadap motivasi belajar matematika siswa SMA Negeri 1 Campalagian. Dengan kontribusi sebesar 15,4% dan sisanya 84,6% dipengaruhi oleh variabel lain

Performance of Multi-relay Cooperative Communication Using Decode and Forward Protocol

Nowadays, the development of wireless communication systems will be refer to user cooperative communication system in which a source information can transmit data to a destination through a relay. This can reduce the effect of fading on wireless communication channel which is a major problem in wireless communication system that can degrade the system performance. In this paper, we investigate the performance of multi-relay cooperative communication using decode and forward protocol in terms of channel capacity, bit error rate (BER) and throughput. The use of decode and forward protocol in multi-relay cooperative communication offers cooperation among users to generate virtual multiple antennas to increase the channel capacity and also can give better system performance. Furthermore, the simulation model of the system and computer simulation is developed to evaluate the performance of multi-relay cooperative communication. The simulation result shows that the channel capacity increases as the value of signal to noise ratio (SNR) increases. Also, the channel capacity increases as the number of relays increases. Moreover, the performance of multi-relay cooperative communication performs better than a single-relay cooperative communication by using decode and forward protocol in terms of BER. Furthermore, multi-relay cooperative communication provides a good throughput of the system compared to a single-relay. Therefore, the multi-relay cooperative communication is useful to mitigate the effects of channel fading, increase the channel capacity, improve the system performance and provide a good throughput by exploiting decode and forward protocol

Design of Prototype for Online Disaster Multimedia Data Transmission Based on Android

The development of information and communication technology application is growing rapidly. It has motivated the use of mobile devices for various social networking mobile services such as android based multimedia disaster information transmission. Disaster multimedia information is important for quick response and recovery phases of the disaster management. In previous work, an online disaster information system based on location (we called it ASIKonLBS) has been proposed. However, it was only providing the coordinate information of the disaster location by using short message service (SMS) gateway and global positioning system (GPS). In this paper, we propose the design of prototype for online disaster multimedia data transmission based on android. Such that, the ASIKonLBSv2 can provide not only the information of the location, but also the situation of the disaster area including news, picture, and video. The research method refers to a spiral model that begins with conceptual design, prototype development and evaluation. The result shows that the designed prototype can be implemented for online disaster multimedia data transmission (news, photo and video) using Android Developer Tools. Furthermore, the prototype can be installed in the android-based smartphone and map the disaster multimedia data onto the web of ASIKonLBS. Therefore, the proposed prototype is useful for the disaster agencies and practitioners in order to give the first aid for the victim in the disaster are

Peningkatan Kemampuan Sains Melalui Kegiatan Eksperimen Anak Usia Dini di TK Mawar

Peningkatan  Kemampuan Sains Melalui Kegiatan Eksperimen Anak Usia 5-6 Tahun di Taman Kanak-Kanak Mawar. Masalah penelitian ini adalah rendahnya kemampuan sains anak terutama pengenalan konsep sains sederhana. Penelitian ini bertujuan untuk mengetahui peningkatan kemampuan sains melalui kegiatan eksperimen di Taman Kanak-kanak Mawar. Jenis Penelitian yang digunakan dalam penelitian ini adalah penelitian kualitatif dan pendekatan Penelitian Tindakan Kelas (PTK) yang terdiri dari dua siklus dimana setiap  siklus dilaksanakan sebanyak 2 kali pertemuan. Fokus penelitian ini adalah kemampuan sains anak dan melalui kegiatan eksperimen. Prosedur penelitian meliputi perencanaan, pelaksanaan tindakan, observasi, dan refleksi. Subjek penelitian ini adalah anak kelompok B Taman Kanak-kanak Mawar terdiri dari 1 orang guru dan anak yang berjumlah 14 orang. Teknik pengumpulan data yang digunakan yaitu ceklist. Hasil penelitian menunjukkan bahwa kegiatan eksperimen pada anak di Taman Kanak-kanak Mawar dapat meningkatkan kemampuan sains yang terdiri mengenal konsep sains sederhana dalam kehidupan sehari-hari dan mengenal kegiatan yang bersifat eksploratif/menyelidik menjadi meningkat, Hal tersebut dilihat dari hasil observasi penilaian anak pra siklus yaitu kemampuan anak  dari hasil pelaksanaan dengan persentase 48% dan pada siklus I dengan kemampuann  anak dengan persentase 62 %dengan kategori berkembang sangat baik dan pada siklus II dengan persentase 88 % berada pada kategori berkembang sangat baik. Hasilnya dapat disimpulkan bahwa dengan metode tersebut, kemampuan anak terhadap sains dapat meningkat.

An orbital solitary fibrous tumor: report of two cases with different presentation

Solitary fibrous tumour (SFT) is a rare spindle-cell neoplasm that can occur in the orbit. We report two cases of orbital SFT in a 35-year-old female and a 28-year-old male with different presentations. First patient presented with slowly progressive left lateral upper lid mass which is firm in consistency and non tender. Patient had non axial proptosis as the mass compressed the globe inferonasally. There was also funduscopy evidence of choroidal folds superotemporally. There is slight impairment of vision on the left eye comparing to right eye. Meanwhile, the second patient presented with a painless diffuse swelling of left upper eyelid. It was soft in consistency, non fluctuate and no opening or pus discharge noted. There is mild mechanical ptosis, however there was no proptosis and no evidence of compression into the globe nor visual impairment.Computed tomography (CT) imaging revealed a well circumscribed and contrast enhanced soft tissue mass intraorbital extraconal mass in both cases. However in the first case, the tumour was at the level of lacrimal gland with compression of the globe, while in second case, it was superior and posterior to the left lacrimal gland with no globe compression. Both patients underwent complete resection of their tumors. The histological findings showed alternating hypercellular and hypocellular areas composed of bland spindle cells with a fibrous stroma. The strong immunoreactivity for CD34 supported the diagnosis of orbital SFT. There was no recurrence at the 2nd and 3rd year follow-up visits for both patients. SFT should be considered as one of the differential diagnosis of an orbital tumor. The combination of CT scan, histologic findings and immunohistochemical staining provide accurate diagnosis. En bloc excision of the tumour is the mainstay of treatment

PENGARUH KARAKTERISTIK PERSONAL, POSTUR MOTIVASI DAN LINGKUNGAN SOSIAL TERHADAP KEPATUHAN WAJIB PAJAK

Penelitian ini bertujuan : (1) Untuk menguji dan menganalisis karakteristik personal berpengaruh positif dan signifikan terhadap kepatuhan wajib pajak. (2) Untuk menguji dan menganalisis postur motivasi berpengaruh positif dan signifikan terhadap kepatuhan wajib pajak. (3) Untuk menguji dan menganalisis lingkungan sosial berpengaruh positif dan signifikan terhadap kepatuhan wajib pajak. Data yang digunakan adalah data primer. Pengumpulan data dalam penelitian ini menggunakan kuesioner. Kuesioner dibagikan kepada 100 wajib pajak KPP Makassar Selatan orang pribadi pada KPP Makassar Selatan. Data analisis dengan dengan menggunakan analisis regresi berganda dengan bantuan SPSS versi 23.00. Hasil dari penelitian ini menunjukkan bahwa karakteristik personal, postur motivasi, lingkungan sosial berpengaruh positif dan signifikan terhadap kepatuhan wajib pajak orang pribadi pada KPP Makassar Selatan. Kata-kata Kunci : Karakteristik personal, Postur motivasi, Lingkungan sosial, Kepatuhan Wajib Paja

Combustion efficiency in a fluidized-bed combustor with a modified perforated plate for air distribution

Combustion efficiency is one of the most important parameters especially in the fluidized-bed combustor. Investigations into the efficiency of combustion in fluidized-bed combustor fuels using solid biomass waste fuels in recent years are increasingly in demand by researchers around the world. Specifically, this study aims to calculate the combustion efficiency in the fluidized-bed combustor. Combustion efficiency is calculated based on combustion results from the modification of hollow plates in the fluidized-bed combustor. The modified hollow plate aims to control combustion so that the fuel incorporated can burn out and not saturate. The combustion experiments were tested using palm oil biomass solid waste fuels such as palm kernel shell, oil palm midrib, and empty fruit bunches. The results of the measurements showed that the maximum combustion temperature for the palm kernel shell fuel reached 863 °C for M1 and 887 °C for M2. The maximum combustion temperature measurements for M1 and M2 from the oil palm midrib fuel testing reached 898 °C and 858 °C, respectively, while the maximum combustion temperature for M1 and M2 from the empty fruit bunches fuel was 667 °C and M2 847 °C, respectively. The rate of combustion efficiency with the modification of the hole plate in the fluidized-bed combustor reached 96.2%. Thermal efficiency in fluidized-bed combustors for oil palm midrib was 72.62%, for PKS was 70.03%, and for empty fruit bunches was 52.43%. The highest heat transfer rates for the oil palm midrib fuel reached 7792.36 W/m2, palm kernel shell 7167.38 W/m2, and empty fruit bunches 5127.83 W/m2. Thus, the modification of the holed plate in the fluidized-bed combustor chamber showed better performance of the plate than without modification