Judul: The ability of leaders and their role in community resilience during the COVID-19 pandemic (Case: A village in West Bekasi District, Bekasi City, West Java Province)
Abstrak: Ditegaskan bahwa penanggulangan COVID-19 di Indonesia menggunakan strategi pendekatan komunitas. Komunitas harus mampu menekan penyebaran kasus infeksi COVID-19. Suatu komunitas akan mampu mengatasi bencana apabila memiliki aksi kolektif, yang membutuhkan pemimpin untuk mengarahkan masyarakatnya melakukan aksi bersama. Maka tujuan penelitian ini adalah untuk menganalisis kemampuan pemimpin komunitas pada masa pandemi COVID-19, menganalisis aksi kolektif komunitas, dan menganalisis kemampuan pemimpin dan perannya dalam resiliensi komunitas pada masa pandemi COVID-19 di suatu wilayah yang mendapat penghargaan sebagai kampung Tangguh. Data dikumpulkan menggunakan metode survei dengan kuesioner kepada 40 responden, dengan diperkuat oleh wawancara mendalam. Data diolah menggunakan Microsoft Excel 2013 dengan analisis statistika deskriptif. Hasil penelitian menunjukkan kemampuan pemimpin komunitas pada masa pandemi COVID-19 tinggi, dengan tingkat aksi kolektif komunitas rendah. Kemampuan pemimpin komunitas tergolong tinggi namun belum dapat meningkatkan aksi kolektif di antara warga sehingga peranannya rendah pada resiliensi komunitas di masa pandemi COVID-19., It’s emphasized that the response to COVID-19 in Indonesia uses a community approach strategy. The community must be able to suppress the spread of COVID-19 infection cases. A community will be able to overcome a disaster if it has a collective action that requires a leader to direct the community to take collective action. So, the purpose of this study is to analyse the ability of community leaders during the COVID-19 pandemic, analyse the collective action of the community, and analyse the ability of leaders and their role in community resilience during the COVID-19 pandemic in an area that was awarded as a Tangguh village. The data was collected using a survey method with a questionnaire to 40 respondents, reinforced by in-depth interviews. The data was processed using Microsoft Excel 2013 with descriptive statistical analysis. The results showed that the ability of community leaders during the COVID-19 pandemic was high, with a low level of community collective action. The ability of community leaders is high but has not been able to increase collective action among citizens so that their role is low in community resilience during the COVID-19 pandemic.
Keyword: Aksi kolektif, COVID-19, kepemimpinan, resiliensi komunitas

Judul: The Role of Leaders in Collective Action for the Poor Urban Communities during the Covid-19 Pandemic (Case: An RW in West Bogor District, Bogor City, West Java)
Abstrak: Wabah pandemi Covid-19 sebagai bencana non alam menjadi faktor risiko bagi masyarakat terlebih bagi komunitas miskin. Upaya untuk mencegah serta menanggulangi pandemi Covid-19 ini perlu didukung dengan aksi bersama komunitas serta didorong oleh kepemimpinan yang kuat. Peranan kepemimpinan dalam mengelola bencana selama dan setelah situasi krisis dapat mendorong komunitas berperan aktif dan tangguh di masa pandemi melalui penguatan aksi kolektif. Penelitian ini menganalisis peran pemimpin pada aksi kolektif komunitas miskin perkotaan di masa pandemi Covid-19. Pengumpulan data dilakukan dengan metode survei pada 60 responden yang diperkuat dengan wawancara mendalam. Hasil penelitian menunjukkan terdapat hubungan signifikan antara peran pemimpin dengan tingginya tingkat aksi kolektif pada komunitas miskin perkotaan selama Pandemi Covid-19. Pemimpin yang dinilai mampu menggerakkan warga komunitas untuk berpartisipasi aktif pada setiap aksi kolektif selama masa pandemi Covid-19 adalah tokoh Ketua RW, The Covid-19 pandemic as a non-natural disaster is a risk factor for the community, especially for the poor. Efforts to prevent and overcome the Covid-19 pandemic need to be supported by joint community action and strong leadership. The leadership role in managing disasters during and after crisis situations can encourage active and resilient communities during a pandemic through supportive collective action. This study analyzes the role of leaders in the collective action of urban poor communities during the Covid-19 pandemic. Data was collected using a survey method on 60 respondents who conducted interviews. The results showed that the relationship between the role of leaders and the level of collective action in urban poor communities was significant during the Covid-19 pandemic. The leader who is considered capable of mobilizing the community to actively participate in every joint action during the Covid-19 pandemic is the leader of the RW
Keyword: collective action, poor communities, the role of leaders

Judul: Separation of Neodymium from U3Si2/Al Fuel Plate for Burn-Up Determination
Abstrak: Neodymium is a common fission product produced in nuclear fission reactions. Neodymium in this study was chosen as a burn-up indicator for U3Si2/Al fuel element plates because the neodymium isotope is a stable fission product with a fairly high yield. Some procedures were carried out to separate neodymium, starting with the separation of cesium isotopes (137Cs, 134Cs) through the precipitation method, then separation of uranium isotopes (235U, 238U) and plutonium isotopes (239Pu, 238Pu) with Dowex 1x8 ion exchange resin, and separation of neodymium (Nd), samarium (Sm), as well as cerium (Ce) with Dowex 1x4 ion exchange resin. The Cs recovery reached 99.95%. The U and Pu isotopes resulting from the separation are subjected to an electrodeposition process and the weight of each isotope can be measured with an alpha spectrometer. The separation results of Nd from Sm and Ce have been proven using an XRF spectrometer. The neodymium isotopes separation was corrected using the standard addition method, and an average total Nd content of 2.4 ppm was obtained in the PEB U3Si2/Al bottom solution. It is hoped that this separation method can be applied in determining burn-up of nuclear fuel.
Keyword: neodymium, burn-up indicator, U3Si2/Al fuel plate