Judul: Analysis of Changes in Social, Culture and  Community Welfare in Agrotourism Areas (Case Study: Agro-tourism  Development in Sidamanik Tea Plantation, Sidamanik Village, Sidamanik  District, Simalungun Regency).
Abstrak: Agrowisata merupakan kegiatan pariwisata yang mengandalkan lahan pertanian atau agro sebagai daya tarik bagi wisatawan. Pembangunan pariwisata dapat menyebabkan perubahan sosial budaya dan ekonomi kepada masyarakat yang bertempat tinggal di wilayah pariwisata tersebut. Tujuan dari penelitian ini adalah untuk menganalisis perubahan sosial yang terjadi setelah pelaksanaan pembangunan agrowisata pada masyarakat pedesaan yang dilihat dari perubahan struktur sosial dan budaya, serta menganalisis tingkat kesejahteraan masyarakat sebelum dan sesudah pelaksanaan pembangunan Agrowisata Kebun Teh Sidamanik. Metode penelitian yang digunakan adalah metode kuantitatif. Data dikumpulkan melalui kuesioner kepada 60 responden, yang dipilih dengan teknik convenience sampling. Sementara itu data kualitatif dikumpulkan melalui wawancara mendalam kepada informan. Hasil penelitian menunjukkan bahwa hadirnya agrowisata memberikan pengaruh perubahan sosial pada stratifikasi sosial, perubahan kebudayaan, dan peningkatan kesejahteraan masyarakat di sekitar agrowisata., Agrotourism is a tourism activity that relies on agricultural or agro land as an attraction for tourists. Tourism development can cause socio-cultural and economic changes to the people who live in the tourism area. The aim of this research is to analyze the social changes that occurred after the implementation of agrotourism development in rural communities as seen from changes in social and cultural structures, as well as to analyze the level of community welfare before and after the implementation of the Sidamanik Tea Garden Agrotourism development. The research method used is a quantitative method. Data was collected through questionnaires to 60 respondents, who were selected using convenience sampling techniques. Meanwhile, qualitative data was collected through in-depth interviews with informants. The research results show that the presence of agrotourism influences social change in social stratification, cultural change, and increases the welfare of the community around agrotourism
Keyword: grotourism, welfare, socio-cultural changes

Judul: Changes in Socio-Cultural Tourism Village Communities
Abstrak: Pariwisata adalah sektor yang kian berkembang di Indonesia, yang bahkan menempati peringkat kedua sebagai penyumbang terbesar devisa negara. Pengembangan desa wisata adalah salah satu bentuk pengembangan pariwisata alternatif, yang saat ini sedang mendapat perhatian. Desa wisata merupakan bagian dari pengembangan pariwisata berkelanjutan dan menjadi salah satu program Pemerintah Republik Indonesia yang diharapkan dapat mempercepat kebangkitan pariwisata dan memicu pertumbuhan ekonomi. Berdasarkan penelitian-penelitian terdahulu, adanya pengembangan desa wisata membawa perubahan sosial dan budaya pada masyarakat lokal. Tujuan dari penelitian ini adalah untuk menganalisis perubahan struktur dan proses sosial, perubahan kebudayaan, dan perubahan tingkat kesejahteraan pada masyarakat Kampung Wisata Mulyaharja akibat adanya pengembangan desa wisata. Metode yang digunakan dalam penelitian ini adalah metode kuantitatif yang didukung dengan data kualitatif. Hasil penelitian menunjukan adanya perubahan sosial budaya pada aspek statifikasi sosial, kelompok sosial, mata pencaharian, proses sosial, sistem nilai, ritual adat dan kesenian, kemampuan menyekolahkan anggota keluarga, dan kemampuan mengakses kesehatan., Tourism is a growing sector in Indonesia, which is even ranked as the second largest contributor to the country's foreign exchange. The development of tourist villages is one form of alternative tourism development, which is currently receiving attention. Tourism villages are part of sustainable tourism development and are one of the programs of the Government of the Republic of Indonesia which are expected to accelerate the revival of tourism and trigger economic growth. Based on previous studies, the development of tourist villages has brought social and cultural changes to local communities. The purpose of this study was to analyze changes in social structures and processes, cultural changes, and changes in the level of welfare in the people of Mulyaharja Tourism Village as a result of the development of a tourist village. The method used in this study is a quantitative method supported by qualitative data. The results showed that there were socio-cultural changes in the aspects of social status, social groups, livelihoods, social processes, value systems, traditional rituals and the arts, the ability to send family members to school, and the ability to access health.
Keyword: tourism village, cultural change, social change, welfare level

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