Judul: Fishers Household Adaptation Strategies Toward Erosion  Impact
Abstrak: Kenaikan permukaan air laut sebagai akibat dari perubahan iklim dapat mengakibatkan terjadinya abrasi di beberapa wilayah pesisir Indonesia. Berbagai dampak yang ditimbulkan abrasi menyebabkan kerentanan pada rumah tangga nelayan. Struktur nafkah dan tinggi rendahnya tingkat kerentanan menentukan strategi adaptasi yang akan diterapkan rumah tangga nelayan. Menerapkan berbagai macam strategi adaptasi akan mampu membuat rumah tangga nelayan bertahan menghadapi perubahan yang terjadi. Penelitian ini menggunakan pendekatan kuantitatif didukung oleh data kualitatif untuk melihat hubungan antar variabel. Hubungan antar variabel ini secara statistik diolah menggunakan uji korelasi Rank Spearman dengan jumlah responden sebanyak 34 rumah tangga nelayan yang terdampak abrasi. Hasil penelitian yang diperoleh menunjukkan bahwa secara umum karakteristik rumah tangga memiliki hubungan yang signifikan dengan variabel struktur nafkah, tingkat kerentanan dan strategi adaptasi. Lalu, hubungan di antara variabel struktur nafkah, tingkat kerentanan dan strategi adaptasi juga menunjukkan hubungan yang signifikan., The rise of sea level as the impact of climate change could cause erosion in several coastal areas in Indonesia. The livelihood structure and the level of vulnerability determines which adaptation strategies that will be implemented. Implementing various adaptation strategies could help fishers households survive the changes. This research uses quantitative approach supported by qualitative data to understand the correlation between variables. The correlation between variables is statistically were processed using the Rank Spearman’s with the total number of respondents being 34 fishers households that were affected by erosion. The results obtained indicate that in general characteristics of households has a significant correlation with the livelihood structure, level of vulnerability and adaptation strategy. Then, the correlation between the variables of livelihood structure, level of vulnerability and adaptation strategy also shows a significant correlation.
Keyword: Erosion, Adaptation Strategy, Fishers Household, Vulnerability

Judul: Analysis the Level of Vulnerability of Fishermen Households in Response to Climate Change: Case of Pari Island, South Seribu Islands, DKI Jakarta.
Abstrak: Perubahan iklim mengakibatkan terjadinya peningkatan intensitas dan frekuensi cuaca ekstrim, perubahan pola hujan, pengingkatan suhu air laut, dan terjadinya kekacauan musim angin. Dampak tersebut kemudian berpengaruh terhadap tingkat kerentanan rumah tangga nelayan. Penelitian ini menggunakan pendekatan kualitatif dan kuantitatif. Pendekatan kualitatif dilakukan dengan observasi dan wawancara mendalam kepada 4 orang informan sedangkan pendekatan kuantitatif dilakukan dengan menggunakan kuesioner kepada 50 responden dengan teknik snowball. Teknik pengolahan dan analisis data dilakukan menggunakan microsoft excel 2019 dan rumus perhitungan LVI-IPCC. Hasil penelitian menunjukkan bahwa nilai keterpaparan pada RT01 sebesar 0,49 dan RT04 sebesar 0,57. Selanjutnya, nilai kapasitas adaptif RT01 sebesar 0,59 dan RT04 sebesar 0,55. Sementara itu, nilai sensitivitas pada RT01 sebesar 0,40 dan RT04 sebesar 0,42. Nilai komponen tersebut kemudian menghasilkan nilai indeks kerentanan rumah tangga nelayan dimana indeks kerentanan RT04 lebih tinggi dibandingkan RT01 dengan nilai -0,04 pada RT01 dan 0,09 pada RT04. Kata kunci: kerentanan, perubahan iklim, rumah tangga nelayan, Climate change has resulted in an increase in the intensity and frequency of extreme weather, changes in rainfall patterns, increased sea temperatures, and chaotic wind seasons. These impacts then affect the level of vulnerability of fishing households. This research uses qualitative and quantitative approaches. The qualitative approach was conducted through observation and in-depth interviews with 4 informants, while the quantitative approach was conducted using a questionnaire to 50 respondents using the snowball technique. Data processing and analysis techniques were carried out using Microsoft Excel 2019 and the LVI-IPCC calculation formula. The results showed that the exposure value at RT01 was 0.49 and RT04 was 0.57. Furthermore, the adaptive capacity value of RT01 was 0.59 and RT04 was 0.55. Meanwhile, the sensitivity value at RT01 was 0.40 and RT04 was 0.42. The component values then produced the value of the vulnerability index of fishing households where the vulnerability index of RT04 was higher than RT01 with a value of -0.04 in RT01 and 0.09 in RT04. Keywords: climate change, fisher households, vulnerability
Keyword: climate change, Livelihood Vulnerability Index (LVI), fisher household

Judul: Pelabelan Super Vertex Magic
Abstrak: Super vertex magic labeling is labeling on graph with is a set of edges mapped into and is a set of vertices mapped into . It has a vertex magic labeling in which and represents the size and order of the graph respectively. This manuscript proves that paths, cyclics, and disjoint union of cyclics have a super vertex magic labeling. There are four theorems to be discussed. The first theorem proves that path is super vertex magic if and only if is odd and . The second theorem proves that cyclic is super vertex magic if and only if is odd. The third theorem proves that bijection function from an edge set onto of graph can be extended to a super vertex magic labeling if and only if the set amount of edge label that incidents with a vertex in the graph, consists of sequential integers as many as vertices in the graph. The fourth theorem proves that disjoint union of the cyclics consists of cyclics with each cyclic has vertices is super vertex magic if and only if and are odd.
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