Judul: Peranan Pemimpin Informal dalam Keberlanjutan Kelompok  (Kasus : Gapoktan Ternak Domba Mekar Jaya, Desa Kadipaten,  Kecamatan Kadipaten, Kabupaten Majalengka, Propinsi Jawa  Barat)
Abstrak: This research take the theme about the role of Informal Leaders in Sustainability process of farmers group. The group here is Farmers sheep groups united that called Mekar Jaya. The frame of this research think that the sustainabilty of Farmers group is influenced by several factors. Those are internal factors of group, The role of informal leaders, afld external factors of group. This research also want to see about The rank or stage of sustainability of group itself. The sample of research is about 79 peoples who is the members of group. The data was collected by using quitiinary and depth interview. The survei has conducted since March until April 2002. Finnaly, the data was analyzed by using Tau-kendall technique to explain correlation among sustainability of group with the factors that can influence it. Sosiometry technique is also using to find the cliques and the leaders in group. The analysis is completed by explaining the development stage of group with planned change method.
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Judul: The Relationship between the Role of Informal Leaders and the Formation of Social Capital in The Community (Case : Thematic Village, Agroedutourism Ciharashas, South Bogor, West Java)
Abstrak: Hadirnya seorang pemimpin pastinya diharapkan dapat menjadi seorang yang dapat mendorong masyarakat kearah yang lebih sejahtera. Peran pemimpin dapat dianalisis dari 3 kelompok yakni peran pemimpin secara motivator, Fasilitator, dan Mobilisator. Jika pemimpin telah mampu menjalankan ketiga peran pemimpin tersebut, diharapakan modal sosial juga terbentuk pada masyarakat, bentuk modal sosial yang terbentuk yakni bonding, briding dan linking. Penelitian ini mengkaji mengenai hubungan peran pemimpin informal, dengan terbentuknya modal sosial yang ada di masyarakat dengan menggunakan metode pendekatan kuantitatif dan kualitatif atau biasa disebut mix method. Pada metode pendekatan kuantitatif menggunakan wawancara terstruktur, sedangkan pada penelitian kualitatif menggunakan wawancara mendalam. Sampel penelitian dipilih dengan metode sensus, sementara informan dipilih berdasarkan pengalaman dan pengetahuan terkait peran pemimpin yang ada secara purposive sampling. Hasil penelitian menunjukkan bahwa tidak ada hubungan antara peran pemimpin informal dengan terbentuknya modal sosial yang ada di masyarakat. Secara kualitatif diketahui bahwa modal sosial terbentuk karena adanya beberapa faktor yakni : lingkungan yang homogen, ketergantungan ekonomi, kebutuhan ekonomi, tradisi dan budaya yang ada, kebutuhan bersama, partisipasi, serta keuntungan yang diperoleh., The presence of a leader is certainly expected to be someone who can push society towards a more prosperous direction. The role of the leader can be analyzed from 3 groups, namely the role of the leader as a motivator, facilitator and mobilizer. If the leader has been able to carry out the three leadership roles, it is hoped that social capital will also be formed in the community, the forms of social capital that are formed are bonding, briding and linking. This research will examine the relationship between the role of informal leaders and the formation of social capital in society by using quantitative and qualitative approaches or commonly called the mix method. The quantitative approach uses structured interviews, while the qualitative research uses in-depth interviews. The research sample will be selected using the census method, while the informants will be selected based on experience and knowledge regarding the role of existing leaders by purposive sampling. The research results show that there is no relationship between the role of informal leaders and the formation of social capital in society. Qualitatively, it is known that social capital is formed due to several factors, namely: a homogeneous environment, economic dependence, economic needs, existing traditions and culture, shared needs, participation, and profits obtained.
Keyword: Community, Kampung Tematik, Leader role, Social capital

Judul: Isolasi dan pemurnian bahan aktif dari mikroalga BTM 11 sebagai inhibitor RNA helikase virus hepatitis C
Abstrak: Hepatitis C virus is the cause of hepatitis C disease which has high virulence. Recent therapy using combination of ribavirin and alpha interferon has short efficiency < 80%. Thus, the discovery of new drug is needed. Antiviral drugs can be discovered through molecular target therapy by finding the inhibitor of RNA helicase that play role in viral replication. Inhibitor can be derived from chemical compound produced by microalgae. The aim of this research was to isolate the active compound from microalgae BTM 11 which had inhibitory activity against RNA helicase. Inhibitory activity was measured by releasing of phospate inorganic in colorimetric ATPase assay. Crude extract was fractionated using gel filtration chromatography with methanol in chloroform solvent. The result showed that Fraction 3 has the highest inhibitory activity which (81.205%). Phytochemical test of crude extract indicated positive flavonoids and coumarin. Thin layer chromatography (TLC) analysis with eluent chloroform: methanol gave 2 spots with Rf value of 0.8 and 0.37. Moreover, high performance liquid chromatography (HPLC) analysis showed absorption peak with the highest abundance at the retention time of 12.483 minute and 16.617 minute was 266 nm and 230 nm. According to these of phytochemical, TLC, and HPLC, inhibitor compound from BTM 11 belongs to flavonoids.
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