Analysis of the utilization of landsat 8 oli imagery for mapping the distribution of coral reefs in Pulau Weh Sabang

As one of the largest archipelagic countries globally, Indonesia has diverse natural resources, one of which is the coral reef ecosystem. Coral reef ecosystems are spread across almost all Indonesian waters, and Pulau Weh Sabang is one distribution area. This study aims to determine the distribution of coral reef ecosystems and test landsat 8 oli imagery accuracy in mapping coral reef ecosystems. The method used in this research is the nearest neighbour algorithm object-based classification method. The results showed that the coral reef ecosystem in Pulau Weh Sabang was divided into two classes: a healthy coral reef ecosystem class with 277.38 hectares and a medium condition coral reef ecosystem class with an area of 710.01 Ha.Keywords:Landsat 8 oliMappingDistributionCoral reefWeh Island

ANALISIS MIGRASI PENDUDUK DI KELURAHAN BAGAN DELI KECAMATAN MEDAN BELAWAN KOTA MEDAN

Penelitian ini bertujuan untuk mengetahui: (1) arus migrasi yang dilakukan migran, (2) faktor pendorong bagi migran (3) Faktor penarik bagi migran (4) Dampak positif dan negatif yang ditimbulkan migran di Kelurahan Bagan Deli Kecamatan Medan Belawan. Populasinya adalah seluruh migran yang sudah berkeluarga di Kelurahan Bagan Deli yang berjumlah 252 kk (orang) dan sekaligus sebagai sampel. Teknik pengumpulan data dengan teknik komunikasi langsung dan data dianalisis dengan teknik analisis deskriptif. Hasil penelitian menunjukkan (1) Arus migrasi yang dilakukan secara langsung (100%) (2) Faktor pendorong utama melakukan migrasi yakni faktor ekonomi (71,15%), Faktor sosial (23,08%) dan faktor letak (5,77%). (3) faktor penarik utama melakukan migrasi adalah faktor ekonomi (53,85%),  faktor sosial (25%) dan faktor terkecil yakni faktor letak (21,15%), (4) dampak positif yang ditimbulkan migran adalah meningkatnya pendapatan bagi 76,92% migran atau sudah layak hidup, tersedianya lapangan pekerjaan baru (nelayan, buruh perusahaan dan karyawan), terciptanya hubungan kekerabatan bagi 80% migran dengan penduduk setempat dan meningkatnya pendapatan daerah melalui pembayaran rekening listrik migran, sedangkan dampak negatif yakni masih ada 23,08% migran memiliki pendapatan belum layak hidup dan 20% migran belum melakukan hubungan kekerabatan dengan penduduk setempat baik antar suku maupun sesama migran di Kelurahan Bagan Deli Kecamatan Medan Belawan

ANALISIS HAMBATAN PENGELOLAAN HALAL TOURISM DI PULAU WEH SABANG

Abstrak: Wisata halal merupakan salah satu wisata yang saat ini berkembang dengan pesat. Saat ini Indonesia merupakan salah satu tujuan wisata halal dunia. Wisata halal (halal tourism) memiliki faktor penghambat dan tidak berjalan dengan baik tanpa adanya dukungan dari berbagai pihak, termasuk wisata halal (halal tourism) yang ada di Pulau Weh (Sabang). Penelitian ini bertujuan untuk mengetahui dan menganalisis hambatan pengelolaan pariwisata halal (halal tourism) di Pulau Weh (Sabang). Metode yang digunakan pada penelitian ini adalah observasi lapangan dan wawancara dinas pariwisata dan wisatawan dengan teknik analisis data menggunakan SWOT. Hasil penelitian menunjukkan banyaknya hambatan perkembangan pariwisata halal antara lain pengelolaan yang belum sesuai standar halal, kurangnya promosi pariwisata, dan kurangnya infrastrukturyang. Hambatan-hambatan wisata halal yang terdapat di Pulau Weh (Sabang) tersebut haruslah segera diperbaiki mengingat potensi destinasi wisata yang dimiliki Pulau Weh (Sabang) sangat potensial. Hambatan yang terjadi pada Wisata Halal di Pulau Weh (Sabang) haruslah diselesaikan secara bersama-sama baik dari pihak pemerintah, pengelola pariwisata, dan masyarakat, serta diperlukan promosi untuk meningkatkan jumlah wisatawan yang datang.  Abstract: Halal tourism is one of the tourisms that is currently overgrowing. Currently, Indonesia is one of the world's halal tourism destinations. However, halal tourism (halal tourism) has inhibiting factors and does not run well without the support of various parties, including halal tourism (halal tourism) on Pulau Weh (Sabang). This study aims to identify and analyze the obstacles to managing halal tourism (halal tourism) on Pulau Weh (Sabang). The method used in this study is field observations and interviews with the tourism and tourist offices with data analysis techniques using SWOT. The study results show that there are many obstacles to the development of halal tourism, including management that does not comply with halal standards, lack of tourism promotion, and lack of adequate infrastructure. The obstacles to halal tourism found on Pulau Weh (Sabang) must be repaired immediately considering the potential of tourist destinations owned by Pulau Weh (Sabang) is very potential. Therefore, the obstacles in Halal Tourism on Pulau Weh (Sabang) must be resolved jointly by the government, tourism managers, and the community. In addition, promotion is needed to increase the number of tourists who come

Analisis Penerapan Case Method dan Team Based Project Dalam Kebijakan Jurusan di Universitas Negeri Medan

Pembelajaran case method dan team-based merupakan salah satu Indikator Kinerja Utama (IKU) yang diterapkan oleh Kementerian Pendidikan dan Kebudayaan Republik Indonesia nomor 3/M/2021. Pembalajaran case method dan team-based adalah pembelajaran yang dibebankan kepada mahasiswa untuk meningkatkan kemampuan berpikir kritis (critical thinking) mahasiswa, memecahkan masalah, mencari solusi, dan menumbuhkan kemampuan berkomunikasi. Pembelajaran ini juga bermanfaat untuk dosen sebagai tenaga pengajar untuk meningkatkan kemampuan dan keterampilan yang lebih tinggi. Penelitian ini bertujuan untuk mengetahui tingkat ketercapaian penerapan case method dan team-based project dalam pembelajaran berdasarkan kebijakan Jurusan. Penelitian ini menggunakan merupakan penelitian pendekatan deskriptif kualitatif. Populasi dalam penelitian Populasi dalam penelitian ini adalah seluruh mahasiswa Jurusan Pendidikan Geografi angkatan 2020-2022 berjumlah 454 dan sampe penelitian sebenyak 215 mahasiswa. Pengumpulan data menggunakan kuisioner (angket) yang disebarkan kepada mahasiswa melalui google form. Hasil penelitian yaitu implementasi case method dan team-based di Jurusan Pendidikan Geografi masih belum berjalan secara maksimal, hal ini dikarenakan beberapa faktor yaitu kurangnya pemahaman mahasiswa dalam tujuan penerapan penugasan case method dan team-based, langkah-langkah penugasan case method dan team-based yang dilampirkan dalam Rencana Pembelajaran Semester (RPS) masih belum jelas, dan kurangnya partisipasi mahasiswa dalam penugasan case method dan team-based.  Kebijakan Jurusan dalam penerapan case mmethod dan team-based project masih belum efektif dikarenakan mahasiswa masih belum mengetahui tujuan dan manfaat dalam penerapan case method dan team-based project

The fitness of African malaria vectors in the presence and limitation of host behaviour

<p>Background Host responses are important sources of selection upon the host species range of ectoparasites and phytophagous insects. However little is known about the role of host responses in defining the host species range of malaria vectors. This study aimed to estimate the relative importance of host behaviour to the feeding success and fitness of African malaria vectors, and assess its ability to predict their known host species preferences in nature.</p> <p>Methods Paired evaluations of the feeding success and fitness of African vectors Anopheles arabiensis and Anopheles gambiae s.s in the presence and limitation of host behaviour were conducted in a semi-field system (SFS) at Ifakara Health Institute, Tanzania. In one set of trials, mosquitoes were released within the SFS and allowed to forage overnight on a host that was free to exhibit natural behaviour in response to insect biting. In the other, mosquitoes were allowed to feed directly on from the skin surface of immobile hosts. The feeding success and subsequent fitness of vectors under these conditions were investigated on 6 host types (humans, calves, chickens, cows, dogs and goats) to assess whether physical movements of preferred host species (cattle for An. arabiensis, humans for An. gambiae s.s.) were less effective at preventing mosquito bites than those of common alternatives.</p> <p>Results Anopheles arabiensis generally had greater feeding success when applied directly to host skin than when foraging on unrestricted hosts (in five of six host species). However, An. gambiae s.s obtained blood meals from free and restrained hosts with similar success from most host types (four out of six). Overall, the blood meal size, oviposition rate, fecundity and post-feeding survival of mosquito vectors were significantly higher after feeding on hosts free to exhibit behaviour, than those who were immobilized during feeding trials.</p> <p>Conclusions Allowing hosts to move freely during exposure to mosquitoes was associated with moderate reductions in mosquito feeding success, but no detrimental impact to the subsequent fitness of mosquitoes that were able to feed upon them. This suggests that physical defensive behaviours exhibited by common host species including humans do not impose substantial fitness costs on African malaria vectors.</p&gt

Sulphadoxine/pyrimethamine versus amodiaquine for treating uncomplicated childhood malaria in Gabon: A randomized trial to guide national policy

<p>Abstract</p> <p>Background</p> <p>In Gabon, following the adoption of amodiaquine/artesunate combination (AQ/AS) as first-line treatment of malaria and of sulphadoxine/pyrimethamine (SP) for preventive intermittent treatment of pregnant women, a clinical trial of SP versus AQ was conducted in a sub-urban area. This is the first study carried out in Gabon following the WHO guidelines.</p> <p>Methods</p> <p>A random comparison of the efficacy of AQ (10 mg/kg/day × 3 d) and a single dose of SP (25 mg/kg of sulphadoxine/1.25 mg/kg of pyrimethamine) was performed in children under five years of age, with uncomplicated falciparum malaria, using the 28-day WHO therapeutic efficacy test. In addition, molecular genotyping was performed to distinguish recrudescence from reinfection and to determine the frequency of the <it>dhps </it>K540E mutation, as a molecular marker to predict SP-treatment failure.</p> <p>Results</p> <p>The day-28 PCR-adjusted treatment failures for SP and AQ were 11.6% (8/69; 95% IC: 5.5–22.1) and 28.2% (20/71; 95% CI: 17.7–38.7), respectively This indicated that SP was significantly superior to AQ (<it>P </it>= 0.019) in the treatment of uncomplicated childhood malaria and for preventing recurrent infections. Both treatments were safe and well-tolerated, with no serious adverse reactions recorded. The <it>dhps </it>K540E mutation was not found among the 76 parasite isolates tested.</p> <p>Conclusion</p> <p>The level of AQ-resistance observed in the present study may compromise efficacy and duration of use of the AQ/AS combination, the new first-line malaria treatment. Gabonese policy-makers need to plan country-wide and close surveillance of AQ/AS efficacy to determine whether, and for how long, these new recommendations for the treatment of uncomplicated malaria remain valid.</p