Judul: The Correlation between Community Participation and The Effectiveness of the COVID-19 Vaccination Program (Case: RT 09 dan RT 16 RW 07 Pondok Bambu Village East Jakarta City)
Abstrak: Program vaksinasi COVID-19 sebagai program pemerintah dalam rangka percepatan penanganan pandemi COVID-19 di Indonesia. Partisipasi masyarakat diperlukan dalam pelaksanaan program tersebut. Penelitian ini bertujuan untuk menganalisis tingkat partisipasi masyarakat pada program vaksinasi COVID-19, menganalisis tingkat efektivitas program vaksinasi COVID-19, dan menganalisis hubungan antara tingkat partisipasi masyarakat dengan tingkat efektivitas program. Responden dalam penelitian ini berjumlah 30 orang. Penelitian ini menggunakan metode kuantitatif yang didukung data kualitatif dengan analisis uji korelasi Rank Spearman. Hasil penelitian menunjukkan tingkat partisipasi masyarakat dominan berada pada tingkat informasi, tingkat efektivitas program vaksinasi COVID-19 tergolong efektif, dan tingkat partisipasi masyarakat dengan tingkat efektivitas program vaksinasi COVID-19 memiliki hubungan positif., The COVID-19 vaccination program is a government program in the context of accelerating the handling of the COVID-19 pandemic in Indonesia. Community participation is required in the implementation of the program. This study aims to analyze the level of community participation in the COVID-19 vaccination program, analyze the effectiveness of the COVID-19 vaccination program, and analyze the correlation between the level of community participation and the level of program effectiveness. Respondents in this study amounted to 30 people. This study uses quantitative methods supported by qualitative data with Rank Spearman correlation test analysis. The results showed that the dominant level of community participation was at the information level. The effectiveness of the COVID-19 vaccination program was classified as effective, and the level of community participation and the effectiveness of the COVID-19 vaccination program had a positive relationship.
Keyword: participation, program effectiveness, vaccination

Judul: Efektivitas Kampanye Komunikasi #VaksinHarusLengkap dalam Mendukung Program Vaksinasi Covid-19.
Abstrak: Berbagai langkah preventif dilakukan untuk mengatasi penyebaran virus Covid-19, salah satunya dengan program vaksinasi Covid-19. Akan tetapi, masih terdapat masyarakat yang ragu dan kurang percaya untuk menerima vaksin Covid19. Oleh karenanya, pemerintah membentuk Komite Penanganan Covid-19 dan Pemulihan Ekonomi Nasional (KPCPEN). Melalui media Instagram @lawancovid_id, KPCPEN melakukan berbagai kampanye salah satunya kampanye #VaksinHarusLengkap. Tujuan penelitian ini adalah untuk menganalisis efektivitas kampanye #VaksinHarusLengkap dalam mendorong masyarakat untuk dapat mengikuti program vaskinasi Covid-19 dengan dosis lengkap. Penelitian menggunakan metode survey dengan instrumen kuisoner melalui platform Google-Form yang disebarkan kepada 70 responden sebagai pengikut akun @lawancovid19_id. Hasil penelitian menunjukkan bahwa efektivitas kampanye berada pada kategori tinggi untuk aspek tingkat pengetahuan dan berada pada kategori sedang untuk aspek tingkat sikap dan perilaku. Hubungan nyata ditemukan antara karakteristik individu pada variable usia dan tingkat pendidikan dengan efektivitas kampanye komunikasi pada aspek sikap. Selain itu, terdapat hubungan nyata lainnya yang ditemukan antara strategi pesan kampanye dengan efektivitas kampanye komunikasi., Various preventive steps have been taken to overcome the spread of the Covid-19 virus, one of which is the Covid-19 vaccination program. However, some people are doubtful in receiving the Covid-19 vaccine. Therefore, the government formed the Committee for Handling Covid-19 and National Economic Recovery (KPCPEN). Through the media Instagram @lawancovid_id, KPCPEN conducts various campaigns, one of which was the #VaksinHarusLengkap campaign. This study aimed to analyze the effectiveness of the #VaksinHarusLengkap campaign in encouraging people to take part in the full dose of the Covid-19 vaccination. The research used a survey method with a questionnaire instrument via the Google-Form, distributed to 70 respondents of the @lawancovid19_id’s followers. This research shows that the effectiveness of communication campaigns has the highest rate for changes of knowledge, and a moderate rate for changes of attitudes and bebehaviorsSignificant relationships were found between individual characteristics on indicators of age and level of education with the effectiveness of communication campaigns on the attitude aspect. In addition, there is another real relationship between message strategies and the effectiveness of communication campaigns.
Keyword: effectiveness, campaign, message strategy, vaccine

Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
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