Penerapan Model Pembelajaran Problem Based Learning (Pbl) Dengan Media Audio Visual Pada Materi Ikatan Kimia Terhadap Penguasaan Konsep Dan Berpikir Kritis Peserta Didik SMA Negeri 1 Panga

Salah satu tujuan mata pelajaran kimia di tingkat SMA adalah untuk menerapkan konsep-konsep kimia dalam rangka penyelesaian masalah yang dihadapi dalam kehidupan sehari-hari. Kenyataannya di lapangan justru bertolak belakang dengan tujuan di atas. Kesulitan peserta didik SMA Negeri 1 Panga dalam memahami materi pelajaran kimia masih banyak ditemukan. Berdasarkan permasalahan dimaksud penelitian ini dilakukan dengan tujuan untuk: 1) mengetahui pengaruh penerapan model pembelajaran PBL dengan media audio visual terhadap penguasaan konsep peserta didik SMA Negeri 1 Panga pada materi ikatan kimia, 2) mengetahui pengaruh penerapan PBL dengan media audio visual terhadap kemampuan berpikir kritis peserta didik SMA Negeri 1 Panga. Penelitian ini dilakukan dengan metode eksperimen pendekatan deskriptif, menggunakan desain penelitian posttest only control design. Sampel dalam penelitian adalah peserta didik kelas X semester 1 SMAN 1 Panga tahun pelajaran 2014/2015. Pengumpulan data dilakukan dengan tes penguasaan konsep dan tes kemampuan berpikir kritis yang telah divalidasi. Data hasil tes yang diperoleh dianalisis secara deskriptif dan secara statistik pada taraf signifikan α = 0,05 (95%). Hasil penelitian menunjukkan bahwa penerapan PBL dengan media audio visual berpengaruh signifikan terhadap penguasaan konsep peserta didik SMA Negeri 1 Panga pada materi ikatan kimia. Nilai rata-rata kelas eksperimen (84) lebih tinggi dibandingkan kelas kontrol (62). Nilai indikator penguasaan konsep yang paling tinggi adalah pada indikator analisis (C4) (85). Penerapan PBL dengan media audio visual berpengaruh signifikan terhadap kemampuan berpikir kritis peserta didik SMA Negeri 1 Panga. Terbukti dari nilai rata-rata kelas eksperimen (82) yang lebih tinggi dibandingkan kelas kontrol (66). Nilai indikator kemampuan berpikir kritis yang paling tinggi adalah pada indikator mengidentifikasi dan menangani suatu ketidaktepatan dan indikator kemampuan memberikan alasa

Tropical forest restoration and rehabilitation management in Malaysia: opportunities and challenges

Malaysia has been endowed with a beautiful tropical forest which provides various ecosystem services such as carbon dioxide absorption, water supply and soil stabilization to the community. It is also a timber source for wood-based industries generating RM22 billion in 2016. However, there are illegal encroachment activities in the forests causing the forests to be degraded as well as conversion of land use to agriculture. The enforcement activities carried out by the authorities have resulted in the degraded areas being reclaimed and the forest areas are being restored with planting of local species with commercial value. To date many degraded forest areas have been restored using different approaches. This paper aims at presenting Malaysia's experiences and initiatives in forest restoration and rehabilitation of degraded forests. These activities have created opportunities to improve the forest ecosystem. There are also many challenges need to be addressed in order the forest restoration and rehabilitation to be successful. These challenges will also be discussed

Penentuan Daerah Penangkapan Potensial Ikan Tuna Mata Besar Dengan Menggunakan Citra Satelit Di Perairan Lhokseumawe

The study to determine a potential fishing ground of big-eye tuna using satellite images in the Lhokseumawe's waters was conducted in February until April 2016 at Fish Landing Areas (TPI) located in the Pusong Village, Lhokseumawe City. Methods of data collection used in this study were obtained through the primary and secondary data. Determining the location of the catching by seeing the spread of chlorophyll-a in a processing map of satellite image and conducted the data collection of the catch in the field. Data were analyzed by analysis of chlorophyll-a and temperature, analysis of the relationship between chlorophyll-a, temperature, and the catching crop, the determination of potential areas of big-eye tuna, and mapping by using Arc Map and Seadas applications.The spread of chlorophyll-a in the waters of Lhokseumawe in February until April ranged between 0.012 mg m-3 to 0.566 mg m-3.The highest temperature in the waters of Lhokseumawe in February by an average was 29°C and the lowest temperature in March with an average temperature was 28°C. The lowest catching of big-eye tuna in February was an amount of 223.4 tons, the highest catching in March was an amount of 513.8 tons, and the catching in April was an amount of 317.5 tons. The potential fishing ground in February was located at coordinates 96°17'30''E–5°14'30''N and the potentialfishing ground was located at coordinates 96°42'30''E–6°24'30''N. In March, the potentialfishing ground was located at coordinates 96°21'30''E–5°43'30''N and the potentialfishing ground was located at coordinates 95°23'30''E–6°33'30''N. The position of potentialfishing groundin April was located at coordinates 96°31'30'' E– 5°43'30'' N. Penelitian penentuan daerah penangkapan potensial ikan tuna mata besar dengan menggunakan citra satelit di perairan Lhokseumawe telah dilakukan pada bulan Februari sampai April 2016 di Tempat Pendaratan Ikan (TPI) yang berada di Desa Pusong Kota Lhokseumawe. Metode pengumpulan data yang digunakan dengan memperoleh data primer (mengikuti langsung operasi penangkapan) dan data sekunder (data dari dinas terkait). Metode analisis data menggunakan analisis klorofil-a dan suhu, hubungan antara klorofil-a, suhu, dan hasil tangkapan, penentuan daerah potensial ikan tuna mata besar, dan pemetaan menggunakan aplikasi Arc map dan Seadas.Penyebaran kandungan klorofil-a di Perairan Lhokseumawe pada bulan Februari sampai April berkisar antara 0,012 mg m-3 sampai 0,566 mg m-3. Suhu di Perairan Lhokseumawe tertinggi pada bulan Februari dengan rata-rata 29°C dan suhu terendah pada bulan Maret dengan suhu rata-rata 28°C. Hasil tangkapan ikan tuna mata besar terendah pada bulan Februari sebesar 223,4 ton, hasil tangkapan tertinggi pada bulan Maret sebesar 513,8 ton, dan hasil tangkapan pada bulan April sebesar 317,5 ton. DPI potensial pada bulan Februari terletak di koordinat 96°17' BT dan 5°14' LU dan DPI kurang potensial terletak di koordinat 96°42' BT dan 6,01°24' LU. Pada bulan Maret DPI potensial terletak di koordinat96°21' BT dan 5°43' LU dan DPI kurang potensial terletak di koordinat 95°23' BT dan 6°33' LU. Posisi DPI potensial pada bulan April terletak dikoordinat96°31' BT dan 5°43' LU

Penentuan Daerah Penangkapan Ikan Tongkol (Euthynnus Affinis) Berdasarkan Sebaran Suhu Permukaan Laut Di Perairan Idi Rayeuk Kabupaten Aceh Timur

This study aimed to determine the potential fishing ground for tuna by remote sensing based on sea surface temperature in the waters of Idi Rayeuk, East Aceh regency. The Collection of field data in such as the number of catches and the coordinates of the fishing conducted from March to April 2016. Sea surface temperature downloadable on the site http://oceancolorgsfc.nasa.gov. Then processed using the device Seadas 7.3. The result showed that the distribution of sea surface temperatures in the waters of Idi Rayeuk from March to April 2016 ranges from 28°C to 30°C with the average of sea surface temperature was 29°C. There were two potential fishing ground identified during the study in East Aceh regency District of Idi Rayeuk, e.i 1) at the coordinates 5°04'88"N-98°23'51"E by the number of catches amounting to 13.293 kg and the sea surface temperature of 29°C 2) potential fishing ground at coordinates 5°29'46"N-98°28'09"E by the number of catches amounting to 13.310 kg with sea surface temperature of 30°C. Penelitian ini bertujuan untuk menentukan daerah penangkapan yang potensial untuk ikan tongkol dengan penginderaan jarak jauh berdasarkan suhu permukaan laut di perairan Idi Rayeuk Kabupaten Aceh Timur. Pengambilan data seperti jumlah hasil tangkapan dan koordinat daerah penangkapan ikan dilaksanakan pada bulan Maret sampai April 2016. Suhu permukaan laut diunduh pada situs http://oceancolorgsfc.nasa.gov. Selanjutnya diolah menggunakan perangkat SeaDas 7.3. Hasil penelitian diperoleh bahwa sebaran suhu permukaan laut di perairan Idi Rayeuk pada bulan Maret sampai April 2016 berkisar antara 28°C sampai 30°C dengan suhu permukaan laut rata-rata adalah 29°C. Dua daerah penangkapan yang potensial diindetifikasi selama penelitian di perairan Kabupaten Aceh Timur Kecamatan Idi Rayeuk, yaitu 1) pada daerah penangkapan dengan koordinat 5°04'88"LU-98°23'51"BT dengan jumlah hasil tangkapan sebesar 13.293 kg serta suhu permukaan laut 29°C dan 2) pada koordinat 5°29'462"LU-98°28'09"BT dengan jumlah hasil tangkapan sebesar 13.310 kg dengan suhu permukaan laut 30°C

Komparasi Finansial Hasil Tangkapan Pertahun di Pantai – Barat Selatan dan Pantai Timur – Utara Provinsi Aceh

This study was aimed to compare the wild capturein the south-west coast with the north-east coast of Aceh. This study was conducted in May 2016 using the data of 2014. The respondents were determined by purpose sampling method to understand the fixed and variable costs, and the wild capture data was analyzed by the comparative financial analysis method. The amount of wild in the South-West coast was 27,905 ton/year while for the North-East coast was 28,015.5 ton/year. The financial comparison showed that the revenue in the South-West coast of Aceh is lower (IDR 623,206,269,840) than the North-East coast of Aceh (IDR 625,678,566,150)

Penentuan Daerah Potensial Penangkapan Ikan Cakalang (Katsuwonus Pelamis) Menggunakan Citra Satelit di Perairan Jayapura Selatan Kota Jayapura

Tujuan dari penelitian ini adalah untuk menentukan daerah penangkapan ikan cakalang yang potensial dengan menggunakan citra satelit di perairan Jayapura Selatan Kota Jayapura. Pengambilan data jumlah hasil tangkapan dan koordinat daerah penangkapan ikan dilaksanakan pada bulan Maret sampai April 2016. Data suhu permukaan laut dan klorofil-a diunduh pada situs http://oceancolorgsfc.nasa.gov.. Hasil penelitian diperoleh bahwa sebaran klorofil-a di perairan Jayapura Selatan pada bulan Maret sampai April 2016 berkisar antara 0,24 mg/m³ sampai 0,31 mg/m³ dengan sebaran klorofil-a rata-rata adalah 0,29 mg/m³. Daerah penangkapan yang potensial diidentifikasi selama penelitian diperairan Jayapura Selatan ada dua, yaitu 1) pada daerah penangkapan dengan koordinat 01⁰09\u27511"LU-140⁰07\u27107"BT dengan jumlah hasil tangkapan sebesar 6.325 kg serta klorofil-a 0,29 mg/m³ dan 2) pada koordinat 01⁰09\u27511"LU-140⁰07\u27107"BT dengan jumlah hasil tangkapan 15.250 kg dengan sebaran klorofil-a 0,31 mg/m³. The aim of this study was to determine the potential fishing area of skipjack tuna using satellite imagery in the waters of South Jayapura, Jayapura City. The collection of data such as the number of catches and the coordinates of the fishing ground was held from March to April 2016. The sea surface temperature and chlorophyll-a were obtained from http://oceancolorgsfc. nasa.gov. The results showed that the distribution of temperature range between 28.67°C-31°C and distribution of chlorophyll-a range between 0.24 mg/m³-0.31 mg/m³ in the waters of South Jayapura from March to April 2016 with the average distribution of sea surface temperature were 29⁰C and the average distribution of chlorophyll-a was 0.29 mg/m³. There are two potential fishing areas identified during the study in the waters of South Jayapura, i.e. 1) in the fishing area with coordinate 01⁰09\u27511"N-140⁰07\u27107"E with catches of 6,325 kg and chlorophyll-a 0.29 mg/m³ and 2) at the coordinates 01⁰09\u27511" N-140⁰07\u27107"E with catches of 15,250 kg and distribution of chlorophyll-a 0.31 mg/m³

Peran Sjafruddin Prawiranegara dalam Mempertahankan Kedaulatan Nkri dari Agresi Militer Belanda II di Riau, Tahun 1948-1949

. The Independence-Revolution is a term that used in the Third Universe-State to independence-war for the extinct Colonizer-State after the end of second world-war. While it is the Indonesian Revolution-Period was going on 1945-1950's. The one of figured who was being famous at the time was Sjafruddin Prawiranegara. Sjafruddin Prawiranegara was an important figured for Indonesian Republic. He was a staged player, an economist who Indonesia ever had. When the Dutch-Aggression Military II, Sjafruddin Prawiranegara built an Emergency-Government of Indonesian Republic because all head leaders of Indonesia, such as Soekarno, Hatta, and Others were arrested by Dutch. Appearance of an Emergency-Government was to move from one place to another, where was an Emergency-Government mention, over there was the Capital of Its Government, started from West Sumatera until Riau. There are many things that happened in his life during to conduct a guerilla war did not except in Riau. The purpose of this research are, first to be aware about biography of Sjafruddin Prawiranegara. Second, to be aware the effort of Sjafruddin Prawiranegara protected sovereignty of Indonesian Republic from Dutch-Aggression Military II, in Riau on 1948-1949. Third, to be aware the effort of Sjafruddin Prawiranegara after left from Riau. Fourth, to be aware when it Indonesian Republic-Capital back to Yogyakarta. The advantages that required from this research are, first to learn the possession of knowledge. Second, the contribution of intention and give some information as a composition for all of readers to be aware how the roles and efforts that our patriots has done to protect sovereignty of Indonesia from colonization. Third, as input for all sides to be aware the role of Sjarifuddin Prawiranegara to protected sovereignty The Unity of Indonesian Republic-State still awakened till now on