Judul: Analisis Karakteristik Pelaku Kultur Jaringan Skala Rumah Tangga Sebagai Salah Satu Upaya konservasi.
Abstrak: The increasing market demand for ornamental and rare plants and the lack of attention to the gene plasma conservation of genetic resources led to the disappearance of large quantities especially for plants that are not yet clearly established or marketing as rare plants. Conventional preservation requires energy and more cost .technique of tissue culture is an alternative to storing gene plasma in the form of plant tissue or organ in the lab, so that the gene plasma preservation can be more efficient. Given the scale of tissue culture is expected to household financial needs of the community are met and can indirectly pressing either the theft of forest plants and rare plants and also the gene plasma conservation efforts. This study aims to (1) analyze the factors that significantly influence the business decision-scale tissue culture households to remain in business seen from the characteristics of these entrepreneurs, (2) Determine factors affecting business success rate scale tissue culture households .The study was conducted in February 2009-June 2009 in Plant Tissue Culture Lab, Department of Forest Resources Conservation, Faculty of Forestry, Bogor Agricultural University. Data derived from several respondents. Respondents who used to know the analysis of business characteristics scale tissue culture of households consisting of entrepreneurs who have tissue culture tissue culture training household scale. The number of sampled respondents is 80 people. Decision of 80 samples using purposive sample method due to time constraints, cost and difficulty of getting the respondents are still rare due to the scale tissue culture cultivation households. The data obtained were analyzed in the form of descriptive and quantitative. Qualitative analyzed data using logistic regression analysis. The results of logistic regression analysis by including the five unknown variables are the three free variables are real or significant impact on business decision-scale tissue culture households to remain in business network culture. These three variables are the variables of business a long time, income variable and education variable, the variables that does not have real impact on the decision to continue his efforts variable amount of age and gender. Logistic regression model was formed to describe the entrepreneur's decision-scale tissue culture households to remain in business is: -12.23 + 0.0416 Gender (P / L) - 0.0027 Age (Years) + 2.9097 last Education ( Senior High School / Senior Vocational School, Diploma, Bachelor) + 1.3656 duration efforts (Year) + 2.06 Income. Testing the feasibility of the model, can be seen the value of Log Likelihood -18,087, to produce statistics for 57,933 G and the value of p-value for 0000. The p-value smaller than α = 0.1, so it can be concluded there are at least βi ≠ 0 Log Likelihood value of -18,087 for the model can be said is good. Good test model can be seen also from the value of Somers' D, Goodman-Kruskal Gamma and Kendall's Tau-a is a summary table cocordant associations and discordant value 0-1. Component values explains that getting closer to the value of one (1 value), then the model is well said. The value obtained is Somers' D 0.92, Goodman-Kruskal Gamma 0.92 and Kendall's
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Judul: The analysis of the continuity factor of tissue culture business in household-scale in Bogor west java
Abstrak: Esha Flora Plant and Tissue Culture merupakan perusahaan perbanyakan tanaman dengan teknik kultur jaringan berskala rumah tangga. Tujuan kegiatan magang ini adalah (1) mengembangkan keterampilan kultur jaringan dan (2) mendeteksi faktor-faktor yang mempengaruhi kelangsungan usaha kultur jaringan. Metode pelaksanaan magang yang dilakukan adalah: mengikuti secara langsung aktivitas di laboratorium Esha Flora, mengamati setiap tahapan kultur jaringan, wawancara dan pencarian data sekunder. Wawancara dilakukan terhadap pemilik dan pegawai laboratorium di Esha Flora.Analisis data mengunakan analisis deskriptif dan analisis SWOT (strength, weakness, opportunity, threat). Kegiatan yang dilakukan selama magang yaitu sterilisasi alat dan bahan, pembuatan media kultur, inisiasi, subkultur, dan aklimatisasi. Tahapan kultur jaringan memerlukan keterampilan yang tinggi. Semakin sering melakukan tahapan kultur jaringan, maka semakin terampil mengerjakannya. Manajemen Esha Flora sudah cukup baik, tetapi perlu mengatur kegiatan selain kegiatan produksi untuk menghindari terganggunya produktivitas perusahaan. Esha Flora juga perlu melakukan regenerasi tenaga ahli untuk keberlangsungan perusahaan pada masa yang akan datang. Faktor internal dalam analisis SWOT terdiri atas kekuatan (strengths) dan kelemahan (weakness) sedangkan faktor eksternal terdiri atas peluang (opportunity) dan ancaman (threat). Total skor faktor internal adalah 2,93 (faktor kekuatan 2,50 + faktor kelemahan 0,78); sedangkan total skor faktor eksternal adalah 3,17 (faktor peluang 2,58 + faktor ancaman 0,58). Selisih faktor internal adalah 1,37; sedangkan selisih faktor eksternal adalah 2,00. Hasil analisis SWOT menunjukan bahwa Esha Flora berada pada kuadran I artinya Esha Flora berpotensi terus berkembang dengan menggunakan strategi agresif. Stategi agresif yang dapat dilakukan Esha Flora adalah: mempertahankan kualitas produk dan memanfaatkan relasi yang kuat untuk memasarkan produk dan jasa yang tersedia, memberdayakan masyarakat sekitar untuk memanfaatkan produk yang tersedia agar lebih efektif. Strategi alternatif yang dapat dilakukan adalah: meningkatkan efesiensi manajemen laboratorium guna meningkatkan produktivitas sesuai dengan kebutuhan pasar, meningkatkan pemasaran hasil produksi dan jasa dengan memanfaatkan relasi yang kuat menggunakan media cetak atau digital, melakukan pelatihan oleh tenaga professional kepada masyarakat untuk meningkatkan sumber daya manusia, menciptakan program untuk meningktakan sumber daya manusia dan efesiensi produktivitas.
Keyword: Esha Flora, eksternal factor, internal factor, SWOT analysis, tissue culture

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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