Judul: Kontribusi Sektor Kehutanan Terhadap Ekonomi Kabupaten Tasikmalaya
Abstrak: Conventionally the role of forestry sector can be proxied by the contribution of that sector to the Gross Domestic Product (GDP). 17% of the Tasikmalaya district areas are forest land. The result showed the contribution of forestry sector to regional gross domestic product ranged from 4.39% to 4.98%. The forestry sector is a basic sector as indicated by LQ value of 2.80 to 3.05 and has a multiplier effect value of 13.315 in 2012. The SWOT analysis showed the forestry sector should use its strengths to capture opportunities. In order of importance, policy that are needed : Collaborative and Community Forest Management (CBFM and CM), Ecotourism development (PE), Rehabilitation of critical lands, and Strengthening forest products industry.
Keyword: Policy, PDRB, AHP, SWOT, Multiplier Effect, Location Quotient, Bogor Agricultural University (IPB)

Judul: Kontribusi Sektor Kehutanan terhadap Ekonomi Kabupaten Sukabumi
Abstrak: Conventionally, the role of forestry sector in the district of Sukabumi is indicated by its contribution to the Regional Gross Domestic Product (RGDP). However, gross value added that generated from timber industry was not taken into account. This value was included into manufacturing sector. This situation undermined the role of the forestry sector. The objectives of this study are to calculate the contribution of the forestry sector to the RGDP of Sukabumi and to determine policy alternative priority that improve forest sector contribution. The results showed the contribution of forestry sector in the period 2000 to 2011 ranged from 2.40% to 5.36%. This forestry sector is a major sector as indicated by Location Quotient value ranging from 1.05 to 1.44. The multiplier effect values varied from 41.23 to 43.05. The forestry sector was strong and had capability to realize opportunities. Therefore, the chosen strategy should support an aggressive growth policy. Expanding of collaborative and community forest management is the highest priority, followed by developing ecotourism, strengthening timber industry and rehabilitating critical land.
Keyword: policy, AHP, SWOT, RGDP, forestry

Judul: Mathematical model of Hematopoietic Stem Cell in Chronic Myelogenous Leukemia with and without Therapy
Abstrak: Leukemia or blood cancer is a diverse group of neoplastic disease, characterized by the multiplication of abnormal leukocytes or malignant transformation of blood-forming cells in bone marrow and lymphoid tissues. One of the most common types of leukemia is Chronic Myelogenous Leukemia (CML), which is usually diagnosed by the presence of certain chromosomal abnormalities, the so-called Philadelphia chromosome (Ph). One of the treatments of CML is Granulocyte Colony-Stimulating Factor (G-CSF). In this paper, we discuss two Hematopoietic Stem Cell (HSC) models, i.e. HSC without treatment and HSC with G-CSF treatment. The model of HSC without treatment included three equations representing the dynamics of HSC, leukocyte and platelet. Whereas, the model of HSC with G-CSF treatment includes the previous three equations and adds two more equations representing G-CSF injection and G-CSF circulation. The stability behavior of the system approaching the equilibrium points in the simulation study is carried out using Mathematica 7.0. The simulation results show that the G-CSF treatment can successfully decrease the number of HSC, which means reducing the CML.
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