Judul: Hubungan antara persepsi dan bentuk adaptasi nelayan terhadap perubahan iklim
Abstrak: Perubahan iklim merupakan sebuah fenomena alam yang hampir terjadi secara global. Dampak dari perubahan iklim itulah yang kini dirasakan di sektor perikanan. Dampak yang terjadi pada sektor perikanan adalah meningkatnya permukaan air laut, meningkatnya suhu permukaan air laut, dan bertambahnya intensitas terjadinya gelombang pasang. Keberadaan pesisir sangat penting bagi para nelayan, akan tetapi kini pesisir dan laut terkena dampak perubahan iklim, sehingga nelayan perlu melakukan adaptasi. Persepsi nelayan terhadap perubahan iklim dapat memengaruhi bentuk adaptasi yang mereka lakukan. Adapun tujuan penelitian ini adalah untuk mengetahui karakteristik nelayan di Pantai Lebih, menganalisis persepsi yang dimiliki oleh nelayan terhadap perubahan iklim, serta menganalisis hubungan antara persepsi dan adaptasi nelayan terhadap perubahan iklim. Penelitian ini menggunakan metode kuantitatif serta didukung dengan data kualitatif. Hasil dari penelitian ini menunjukkan bahwa karakteristik nelayan di Desa Lebih berumur tua dengan pendidikan minimal Sekolah Menegah Pertama, namun memiliki status ekonomi yang tinggi. Pengetahuan nelayan terhadap perubahan iklim ditandai dengan pengetahuan nelayan terhadap bentuk, dampak, dan penyebab perubahan iklim. Persepsi mereka didukung dengan adanya harapan nelayan dalam menghadapi perubahan iklim. Persepsi mereka membentuk sebuah adaptasi dalam menghadapi perubahan iklim. Adaptasi yang dilakukan oleh nelayan, yaitu diferensiasi pekerjaan dan penyesuaian pekerjaan., Climate change is a phenomenon that occurs almost globally. The impacts of the climate change are occuring at coastal sector. The impacts that occur at the coastal area are the increasing of sea level, the increasing of sea temperature, and the increasing of tidal wave’s intensity. The coastal is very important for the fishermen, nowadays, coastal area has effected by climate change, so the fishermen will adapt with the situation. The fishermen knowledge about climate change can form a perception of fishermen against climate change. The fishermen’s perception will affect their adaptation. The research goals are to analyze the fishermen characteristics, analyze the fishermen perception, and the correlation of perception and adaptation against climate change. This research is using quantitative methods and support with qualitative data. The goals from this research that the characteristics of Lebih Village’s fishermen are in the old age category with senior high school as they minimum education, but they have a high economics status. The fishermen knowledge about climate changes are they knowledge about the climate changes forms, effects, and causes. Beside the knowledge, they perception is supported with their hope in facing climate changes. They perception is supporting fishermen adaptation in facing the climate changes. The most adaptation that doing by the fishermen are finding another job and adapt the current job with climate changes.
Keyword: perubahan iklim, persepsi, nelayan, adaptasi

Judul: (Kasus: Nelayan Desa Teluk, Kecamatan Labuan, Kabupaten Pandeglang)
Abstrak: Dampak perubahan iklim seperti meningkatnya permukaan air laut, bertambahnya intensitas terjadinya gelombang pasang, serta terjadinya hujan yang disertai dengan angin kencang berakibat pada terhentinya kegiatan nelayan untuk melaut. Hal tersebut mengharuskan para nelayan melakukan strategi adaptasi guna mencukupi kebutuhan hidupnya. Persepsi nelayan terhadap dampak perubahan iklim dapat memengaruhi bentuk adaptasi yang mereka pilih. Adapun tujuan penelitian ini adalah untuk menganalisis persepsi dan faktor-faktor yang memengaruhi persepsi nelayan terhadap dampak perubahan iklim, menganalisis strategi adaptasi nelayan dalam menghadapi dampak perubahan iklim, serta menganalisis pengaruh persepsi terhadap dampak perubahan iklim pada strategi adaptasi nelayan. Metode penelitian yang digunakan dalam penelitian ini, yaitu metode survei dengan menggunakan pendekatan kuantitatif yang dilengkapi oleh data kualitatif. Data kuantitatif diolah menggunakan uji regresi linear sederhana dengan pemilihan responden yang menggunakan teknik clustered random sampling dengan jumlah responden 45 orang., The impacts of climate change such as rising sea levels, increasing intensity of tidal waves, and rain accompanied by strong winds have resulted in the cessation of fishing activities. This requires fishermen to carry out adaptation strategies to meet their daily needs. Fishermen's perception of the impacts of climate change can influence the form of adaptation they choose. The purpose of this study is to analyze perceptions and factors that influence fishermen's perceptions of the impact of climate change, analyze fishermen's adaptation strategies in dealing with the impacts of climate change, and analyze the effect of perceptions on the impact of climate change on fishermen's adaptation strategies. The research method used in this study is a survey method using a quantitative approach which is complemented by qualitative data. Quantitative data was processed using a simple linear regression test with the selection of respondents using clustered random sampling technique with a total of 45 respondents.
Keyword: Fisherman Adaptation Strategies, Impacts of Climate Change, Perception

Judul: Penggunaan Teorema Homeomorphy 2-Manifold dan Teorema Euler Poincare pada Torus 𝑇�� dan Simplicial Complex 𝐾��
Abstrak: Two dimensional topological spaces are said to be homeomorphic if they have the same topological invariant, where one of topological invariant used is an Euler characteristic. Homeomorphy 2-Manifold’s Theorem and Euler Poincare’s Theorem are used to distinguish two topological spaces. Homeomorphy 2-Manifold’s Theorem uses Euler characteristic to identify two dimensional topological spaces. Euler Poincare’s Theorem is an alternative way to find Euler characteristic with Betti number, which is topological invariant as well. The objective of this paper is to investigate the homeomorphism of torus 𝑇����� and simplicial complex 𝐾�����. Topological space torus and simplicial complex 𝐾����� have the same Euler characteristic, which is two. Based on Homeomorphy 2-Manifold’s Theorem topological space torus 𝑇����� and simplicial complex 𝐾����� is homeomorphic.
Keyword: simplicial, torus, Euler, homeomorphism, topology