Judul: Persepsi dan aktivitas masyarakat dalam penggunaan kayu bakar di Kota Dili, Timor Leste
Abstrak: Firewood as traditional energy source are used by community in rural area. Firewood problems need serious attention and it is necessary to do the research about firewood. because 80% of the rural area in Timor Leste still using firewood as an energy sources. This research was conducted in May-June 2014 at Becora village, Lahane Oriental village, and Comoro village as targetted villages. The objectives of the study were to identify prespectives of community of Dili city on firewood consumption and activities of community in Dili city using firewood as priority energy. This study were using interview method and questionaire’s filling to respondents on the three targetted villages. Results of this study showed that community at Becora village, Lahane Oriental village, and Comoro village use firewood as an energy sources priority for household consumption. Firewood which utilizes by community were taken from natural forests in Timor Leste, and the precentage of common used species Ampupu woods 80%, Asam woods 5%, Kesambi woods 5%, Bakau woods 5%, and Lamtoro woods 5%.
Keyword: Bogor Agricultural University (IPB), Dili City, Household, Firewood

Judul: Studi pemenuhan kebutuhan kayu bakar di desa-desa sekitar hutan Ketu BKPH Wonogiri KPH Surakarta
Abstrak: Hutan merupakan sumberdaya alam yang menyediakan hasil bagi manusia diantaranya adalah kayu. Kavu digunakan manusia untuk memenuhi kebutuhan hidupnya diantaranya sebagai bahan bangunan, bahan baku perlengkapan rumah tangga, kayu bakar dan sebagainya. Di daerah pedesaan, kayu masih merupakan sumber energi utama untuk memasak, mengolah bahan makanan dalam industri makanan dan untuk keperluan lain. Menurut Fattah (1979), kelompok masyarakat pedesaan yang tinggal di sekitar hutan yang mempunyai lahan garapan di bawah 1.0 Ha atau yang tidak mempunyai lahan garapan, hidupnya tergantung dari energi kayu bakar di hutan. Tujuan pemenuhannya, 75% dijual ke kota agar mereka dapat memenuhi kebutuhan hidup sehari-hari dan sisanya untuk memenuhi energi rumah tangganya sendiri. Kesenjangan antara kebutuhan dan ketersediaan kayu bakar akan cenderung membesar dari tahun ke tahun seirama dengan laju pertumbuhan penduduk yang berarti desakan kebutuhan kayu bakar akan semakin meningkat. oleh masyarakat tersebut dan upaya peningkatan produksi kayu bakar. Tujuan penelitian ini adalah untuk mengetahui pola konsumsi kayu bakar, sumber pemenuhan kayu bakar rumah tangga dan industri rumah tangga sekitar hutan, potensi kayu bakar pada lahan milik (pekarangan, tegalan) dan hubungan kondisi sosial ekonomi rumah tangga terhadap konsumsi kayu bakar. Hasil penelitian ini diharapkan dapat memberikan masukan sebagai bahan pertimbangan untuk mengatasi masalah kayu bakar bagi masyarakat desa sekitar hutan dengan pengadaan kebun kayu bakar. ...
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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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