Judul: The Influence of Image and Knowledge on Interest in  Cooperative Bogor Agricultural Institute Students
Abstrak: Eksistensi koperasi merupakan suatu keniscayaan untuk menjadi promotor kebangkitan ekonomi rakyat. Namun, saat ini minat berkoperasi pada generasi Z masih tergolong rendah. Penelitian ini bertujuan untuk mengetahui apakah terdapat perbedaan citra, pengetahuan, dan minat berkoperasi antara mahasiswa yang mengambil mata kuliah Koperasi dan Kelembagaan Agribisnis (KKA) dengan mahasiswa yang tidak mengambil mata kuliah tersebut (non KKA). Kemudian dilanjutkan dengan menguji pengaruh citra dan pengetahuan terhadap minat berkoperasi mahasiswa Institut Pertanian Bogor (IPB). Penelitian ini melibatkan 160 mahasiswa aktif IPB. Metode analisis yang digunakan adalah uji beda dua kelompok bebas dan PLS-SEM. Hasil penelitian ini menunjukkan bahwa tidak terdapat perbedaan citra, pengetahuan, dan minat berkoperasi pada mahasiswa KKA dan non KKA. Hasil penelitian berikutnya menunjukkan bahwa terdapat pengaruh citra dan pengetahuan terhadap minat berkoperasi pada mahasiswa IPB. Implikasi dari penelitian ini adalah peningkatan citra positif dan pengetahuan koperasi baik melalui pendidikan formal maupun non formal penting dilakukan untuk dapat menjaga dan meningkatkan minat berkoperasi mahasiswa., The existence of cooperative is a necessity to become a promoter of people's economic revival. However, currently the interest in cooperative among generation Z is still relatively low. This research aims to determine whether there are differences in the image, knowledge and interest in cooperatives between students who take the Cooperative and Agribusiness Institutions (KKA) course with students who do not take this course (non KKA). Then proceed with testing the influence of image and knowledge on the interest in cooperative of Bogor Agricultural Institute (IPB) students. This research involved 160 active IPB students. The analytical methods used are two independent group difference tests and PLS-SEM. The results of this research show that there are no differences in the image, knowledge and interest in cooperatives between KKA and non-KKA students. Then there is the influence of image and knowledge on interest in cooperatives among IPB students. The implication of this research is that increasing the positive image and knowledge of cooperatives, both through formal and non-formal education is important to maintain and increase students' interest in cooperatives.
Keyword: Intention, image, Knowledge, PLS-SEM, different tests

Judul: Factors Affecting Coffee Farmers Join Cooperatives and The Impact on Farms Performance
Abstrak: Koperasi memberikan banyak manfaat bagi petani, antara lain memperkuat posisi tawar petani, memperoleh akses input, pelayanan, pasar dan jasa, serta permodalan. Meskipun demikian, masih banyak petani yang tidak bergabung menjadi anggota koperasi. Tujuan penelitian ini untuk menganalisis faktor-faktor yang memengaruhi keikutsertaan petani kopi menjadi anggota koperasi dan menganalisis dampak koperasi terhadap kinerja usahatani kopi. Metode yang digunakan adalah logistik biner dan Propensity Score Matching (PSM). Penelitian ini dilakukan dengan menggunakan data sekunder yaitu data survei rumah tangga usaha perkebunan tahun 2014 yang dilakukan oleh BPS (Badan Pusat Statistik). Hasil penelitian ini menunjukkan bahwa faktor-faktor yang memengaruhi petani kopi bergabung pada koperasi secara signifikan dipengaruhi oleh faktor umur, lama pendidikan, status kepemilikan lahan, dan sumber modal, dan lokasi tempat tinggal petani. Selain itu, hasil penelitian menunjukkan bahwa koperasi memiliki dampak secara signifikan pada kinerja usaha tani kopi yang diukur dari pendapatan petani kopi, jumlah produksi, dan produktivitas., Cooperatives provide many benefits for farmers, that it strengthening farmers' the bargaining position, gaining access to inputs, service, markets, services, and capital. However, there are still many farmers not become members of the cooperatives. The purpose of this study was to analyze the factors that influence the participation of coffee farmers to become members of a cooperative and to analyze the impact of cooperatives on the performance of coffee farming in Indonesia. The method used are binary logistics and Propensity Score Matching (PSM). This research was carried out using secondary data derived from the 2014 survey of plantation business households, which had been carried out by BPS (Central Bureau of Statistics). The study indicates that the factors that influence the participation of coffee farmers in joining cooperatives are significantly influenced by factors of age, length of education, land ownership status, sources of capital, and the location of the farmer's residence. In addition, the results of the study show that cooperatives have a significant impact on the performance of coffee farming as measured by coffee farmers' income, production volume, and productivity.
Keyword: coffee farmers, cooperatives, farmer participation, farms performance, Propensity Score Matching (PSM)

Judul: Studi Taksonomi Katak Subgenus Papurana (Lesson, 1831) dari Halmahera (Anura, Ranidae, Hylarana), Studi Taksonomi Katak Subgenus Papurana (Lesson, 1831) dari Halmahera (Anura, Ranidae, Hylarana
Abstrak: I reevaluated taxonomic of subgenus Papurana position from Halmahera based on morphological and molecular analyses. My results show that two separate species occur on the Halmahera Island, each nested within two distinct clades (hereafter papua clade and celebensis clade), one of which corresponds to H. moluccana (celebensis clade) and the other to an unidentified species (papua clade). By p-distance ranging from 6.9 to 11.5% on the 16S rRNA gene, the unidentified species (Hylarana sp.) is genetically different from all congeners of the papua clade. The Hylarana sp. can be distinguished from all congeners by following combination of charactes: vomer teeth in two oblique rows with narrow inter-vomer distance; snout rounded dorsally; dorsum with few scattered cone-shaped tubercles that are black with white tips; distinct skin folds (ridges) on the dorsal side of the thigh coinciding with dark brown cross bars; a marbled pattern on the ventral side of the thigh and yellowish groin. I also present new data for H. daemeli, H. volkerjane, and H. arfaki from the western region of Papua. Furthermore, I found that H. celebensis has numerous mtDNA lineages, indicating cryptic diversity within the celebensis clade. The discovery of two separate species on Halmahera necessitates more research into the biogeographic history of Hylarana in Northern Moluccas.
Keyword: frog, Halmahera, Hylarana, morphology, Papurana, phylogenetic