Judul: Tipologi Keluarga, Strategi Adaptasi Nafkah, dan Ketahanan Ekonomi Keluarga dalam Menghadapi Perubahan Iklim pada Keluarga Petani
Abstrak: Perubahan iklim memiliki dampak begitu besar dalam kehidupan, khususnya keluarga petani yang menggantungkan sumber kehidupannya pada iklim dan cuaca. Tipologi keluarga memiliki peran penting sebagai basis dalam melakukan strategi adaptasi nafkah untuk mencapai ketahanan ekonominya. Tujuan penelitian ini adalah menganalisis pengaruh antara karakteristik keluarga, tipologi keluarga, strategi adaptasi nafkah, dan ketahanan ekonomi keluarga. Penelitian ini menggunakan pendekatan kuantitatif dengan teknik penarikan contoh purposive sampling terhadap 60 petani di Kota Bogor selama Januari-Februari 2024. Para petani dalam penelitian sebagian besar tipologi keluarganya masuk kategori tinggi, lebih dari setengahnya tergolong rendah dalam strategi adaptasi nafkah, dan setengahnya belum mencapai kategori tinggi pada ketahanan ekonomi keluarga sehingga masih perlu ditingkatkan. Hasil uji regresi menunjukan bahwa pendidikan suami, ketangguhan keluarga, dan pola nafkah ganda berpengaruh positif signifikan terhadap ketahanan ekonomi keluarga, Climate change has a huge impact on sustaining life, especially for farmer families who depend on climate and weather for their livelihood. Family typology has an important roles as a basis for carrying out livelihood adaptation strategies to achieve economics resilience. The purpose of this study is to analyze the influence between family characteristics, family typologies and livelihood adaptation strategies to family economic resilience. The method used was quantitative approach with purposive random sampling technique of 60 farmers in Bogor City during January-February 2024. Most of the farmers in this study have a high category in family typology, more than a half are in low category of livelihood adaptation strategy, and half are not achieve a high category of family economic resilience so they still need to be improved. The result of multiple lineal regression shows that husband education, family hardiness, and dual income strategy has a significant positive effect on family economic resilience.
Keyword: climate change, family economic resilience, family typology, farmer
families, family typology

Judul: Adaptation of Farmers in Facing Climate Change Based on Social Learning Theory (Case: Farmers Association Responding to Climate Change, Indramayu Regency, West Java)
Abstrak: Krisis iklim yang terjadi saat ini memberikan dampak yang besar bagi sektor pertanian, sehingga perlu adanya adaptasi petani dalam melakukan budidaya pertanian untuk meminimalisir terjadinya kegagalan panen akibat perubahan iklim. Berkaitan dengan hal tersebut terdapat suatu teori yang memandang bahwa perilaku seseorang dapat dipengaruhi oleh model atau lingkungannya yaitu teori pembelajaran sosial. Teori pembelajaran sosial menjelaskan mengenai hubungan antara faktor kognitif, faktor lingkungan, dan perilaku individu. Penelitian ini bertujuan untuk menganalisis perilaku adaptasi petani dalam menghadapi perubahan iklim berdasarkan dua faktor yaitu lingkungan dan kognitif. Penelitian ini menggunakan pendekatan kuantitatif yang diperoleh melalui survey dengan kuesioner serta di dukung data kualitatif yang diperoleh melalui wawancara mendalam kepada informan dan observasi di lapangan. Hasil penelitian menunjukkan bahwa terdapat hubungan antara faktor lingkungan petani dengan faktor kognitif petani, faktor lingkungan dengan perilaku adaptasi petani, serta faktor kognitif dengan perilaku adaptasi petani dalam menghadapi perubahan iklim., The current climate crisis has a major impact on the sector, so it is necessary to adapt farmers in agricultural cultivation to minimize crop failure due to climate change. In this regard, there is a theory which views that a person's behavior can be influenced by the model or the environment, namely the theory of social learning. Social learning theory explains the interrelationships between cognitive factors, environmental factors, and individual behavior. This study aims to analyze the adaptation behavior of farmers in the face of climate change based on two factors, namely environmental and cognitive. This study uses a quantitative approach obtained through surveys with questionnaires and qualitative data research obtained through interviews with informants and field observations. The results showed that there was a relationship between environmental factors of farmers and farmers' cognitive factors, environmental factors with farmer's adaptive behavior, and cognitive factors with farmers' adaptive behavior in facing climate change
Keyword: Climate change, Farmers, Social Learning Theory

Judul: Hydroxyapatite-Chitosan Composite Coating on Stainless Steel 316 to Improve Corrosion Resistance
Abstrak: Metals that were used in bone implantation should have good corrosion resistance that were not easily corroded when implanted into the body. Metal corrosion resistance of stainless steel 316 can be enhanced through the metal coating by hydroxyapatite-chitosan composite with composition ratio of hydroxyapatite (gram) and chitosan 3% (mL) 0.2:0, 0.2:0.1, 0.2:0.5, 0.2:1.0, and 0.2:1.5. Besides improving the corrosion resistance of metal, the presence of chitosan also maintain the position of hydroxyapatite on metal surfaces. Corrosion resistance increases with increasing amount of chitosan added and the best composition of hydroxyapatite-chitosan composite was 0.2:1.0.
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