Judul: Potential Analysis and Development of Flower Tourism Village in Tigarunggu Village, Purba District, Simalungun Regency
Abstrak: Salah satu konsep pariwisata adalah desa wisata. Desa wisata memiliki beberapa karakter khusus dan kondisi alam yang mendukung untuk menjadi tujuan wisata. Kelurahan Tigarunggu merupakan salah satu daerah yang berada dalam koridor dan rute menuju objek wisata Danau Toba. Daerah ini memiliki 5 desa yang 3 diantaranya sering dilewati wisatawan baik dalam negeri maupun luar negeri saat menuju objek wisata Danau Toba. Ketiga desa tersebut memiliki tanah yang subur, udara yang dingin dan bentang alam yang menarik sehingga berpotensi dikembangkan menjadi desa wisata namun hal tersebut belum dimanfaatkan dan dikembangkan secara maksimal. Hal ini ditunjukkan oleh kurangnya kunjungan wisatawan pada beberapa desa tersebut saat menuju objek wisata Danau Toba. Oleh karena itu penelitian ini bertujuan mengidentifikasi potensi dan menentukan bentuk pengembangan kawasan desa wisata di Desa Tigarunggu, Kampung Baru dan Sitalasari. Metode penelitian dimulai dengan observasi lapang secara purposive sampling, penentuan responden, pengamatan dan identifikasi tanaman bunga di pekarangan, pengukuran suhu, wawancara dan analisis data. Hasil penelitian menunjukkan Desa Tigarunggu, Kampung Baru dan Sitalasari berpeluang dikembangkan menjadi desa wisata dengan potensi alam berupa keanekaragaman bunga yang berhasil diidentifikasi berjumlah 136 spesies dari 43 suku, kebun jeruk dan kebun sayuran. Keanekaragaman spesies tanaman bunga tertinggi dimiliki oleh desa Sitalasari. Desa yang berdekatan tidak selalu memiliki proporsi spesies bunga yang sama. Tingkat pendidikan merupakan faktor yang sering berpengaruh terhadap persepsi responden mengenai desa wisata. Masyarakat di ketiga desa memiliki keterbukaan untuk semua jenis pengembangan desa wisata. Kata kunci: desa wisata, persepsi, potensi alam, tanaman bunga, One of the tourism concepts is the tourist village. The tourist village has several special characters and natural conditions that support it to become a tourist destination. Tigarunggu Village is one of the areas in the corridor and route to the Lake Toba tourist attraction. This area has 5 villages, 3 of which are often passed by tourists both domestically and abroad when they go to Lake Toba attractions. The three villages have fertile soil, cold air and attractive landscapes so that they have the potential to become tourist villages, but these have not been utilized and developed optimally. This is indicated by the lack of tourist visits to some of these villages when they go to the Lake Toba tourist attraction. Therefore, this study aims to identify the potential and determine the form of development of the tourist village area in Tigarunggu, Kampung Baru and Sitalasari villages. The research method begins with field observations by purposive sampling, determination of respondents, observation and identification of flower plants in the yard, temperature measurement, interviews and data analysis. The results showed that Tigarunggu, Kampung Baru and Sitalasari villages had the opportunity to be developed into tourist villages with natural potential in the form of orange gardens, vegetable gardens and flower diversity which were identified totaling 136 species from 43 tribes. Sitalasari village has the highest diversity of flower plant species. Adjacent villages do not always have the same proportion of flower types. Education level is a factor that often influences respondents' perceptions of tourist villages. Communities in the three villages have openness to all types of tourism village development. Keywords: flower
Keyword: flower plants, natural potential, perception, tourist village

Judul: The Landscape Potential Analysis of Pengasinan Sub-District, Depok City for Community Based Ornamental Plants Agrotourism
Abstrak: Kelurahan Pengasinan memiliki komoditas utama berupa tanaman hias yang berpotensi untuk menjadi objek agrowisata di Kota Depok. Sayangnya, kawasan ini belum dikembangkan secara optimal. Penelitian ini bertujuan untuk menginventarisasi dan menganalisis kesesuaian lanskap di Kelurahan Pengasinan serta menentukan kawasan potensial untuk pengembangan agrowisata tanaman hias berbasis masyarakat. Metode yang digunakan pada penelitian ini adalah inventarisasi, analisis potensi masyarakat, analisis potensi pengembangan lahan dan analisis potensi agrowisata dengan metode skoring. Hasil penelitian berupa peta kawasan potensial, konsep, rekomendasi dan strategi pengembangan agrowisata tanaman hias berbasis masyarakat di Kelurahan Pengasinan. Berdasarkan hasil penelitian, Objek wisata potensial di kawasan tersebut berupa sentra tanaman hias, wisata air Situ Pengasinan, budidaya ikan air tawar, pemancingan dan wahana permainan. Masyarakat setempat yang akan menjadi pelaku utama agrowisata telah memiliki kesiapan yang baik dari segi kepemilikan laha, keahlian profesi dan keahlian penunjang. Kondisi fisik lanskap Kelurahan Pengasinan masuk ke dalam kategori sesuai untuk pengembangan agrowisata karena memiliki tingkat kepekaan terhadap erosi yang dominan rendah, serta memiliki jenis penggunaan lahan yang sesuai. Kelurahan Pengasinan memiliki 3 zona yang potensial untuk pengembangan agrowisata tanaman hias yaitu, koridor Jalan Raya Pengasinan, area Situ Pengasinan, dan koridor Jl Panggulan – Jl Legok Semun., Pengasinan Sub-District have ornamental plants cultivation as the main commodity that potential to become an agrotourism object in Depok City. However, this area has not been optimally developed. This study aims to inventory and analyze the suitability of the landscape in the Pengasinan Sub-District and determine the potential areas for the development of community-based ornamental plant agrotourism. The method used in this research are landscape inventory, community potential analysis, land potential development analysis and scoring of agro-tourism potential. The result are potential areas, concepts, recommendations and strategies for the community-based ornamental plant agrotourism development. Based on the research, potential tourism objects in the area are ornamental plant centers, Pengasinan Lake tourism, fish farming, fishing and playground area. The local community who will become the main executor of agro-tourism already have good readiness in terms of land ownership, professional expertise, and supporting expertise. The physical condition of the Pengasinan Sub-District landscape is categorized in the suitable category for agro-tourism development because it has a low sensitivity to erosion, and has the right type of land use. There are 3 potential zones for the development of ornamental plant agro-tourism, namely, the corridor of Jl Raya Pengasinan, Pengasinan Lake area, and the Jl Panggulan – Jl Legok Semun corridor.
Keyword: community development, landscape plants, urban agricultural tourism

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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