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: Study of Agrotourism Potential and Development Strategy in Batang Onang District, North Padang Lawas Regency
Abstrak: Kecamatan Batang Onang didominasi oleh sektor pertanian dan pariwisata. Sektor-sektor tersebut menjadi peluang pengembangan agrowisata. Pengembangan agrowisata dilakukan dengan mengintegrasikan objek wisata dan kegiatan pertanian, sehingga menjadi daya tarik baru bagi wisatawan. Penelitian ini bertujuan untuk mengidentifikasi objek dan daya tarik wisata, menilai kelayakan pengembangan agrowisata dan keputusan berkunjung wisatawan, dan menyusun rencana strategis pengembangan agrowisata. Metode yang digunakan dalam penelitian ini adalah analisis Obyek dan Daya Tarik Wisata (ODTW), analisis Tourism Opportunity Spectrum (TOS), analisis Strength-Weaknes-Opportunity-Threat (SWOT), dan metode Arsitektur Strategi. Hasil penelitian menunjukkan terdapat tiga desa dengan klasifikasi potensi tinggi pengembangan agrowisata sebesar 50%. Desa tersebut direkomendasikan untuk kawasan pengembangan agrowisata sedangkan desa dengan klasifikasi potensi rendah akan diusulkan sebagai desa pendukung pengembangan agrowisata. Pengembangan agrowisata di Kecamatan Batang Onang masuk dalam kategori kelayakan sedang mendekati tinggi atau sebesar 63,9%, kemudian keputusan kunjungan wisatawan masuk dalam kategori kelayakan sedang mendekati tinggi atau sebesar 71,3%. Wisatawan menilai keindahan alam, keramahan masyarakat, dan popularitas objek wisata menjadi tujuan utama berkunjung ke kecamatan ini. Pengembangan agrowisata dalam 5 tahun membutuhkan strategi turn-around dan strategi grow-build, strategi ini berarti terdapat peluang yang besar, namun memiliki kendala atau kelemahan, sehingga strategi terbaik yang digunakan adalah sembilan alternatif strategi W-O. Strategi pertama untuk program pengembangan agrowisata adalah pemerintah, penyuluh, dan perangkat desa berkolaborasi untuk mensosialisasikan teknologi pertanian terkini kepada masyarakat dan petani, kemudian terakhir pemerintah, peneliti, dan badan musyawarah masyarakat memberikan penjelasan tentang manfaat agrowisata di kecamatan Batang Onang., Batang Onang sub-district has dominated by agriculture and tourism sector. The sectors will be an opportunity for agrotourism development in this sub-district. The development of agrotourism was conducted by integrating tourist objects and agricultural activities; therefore, become a new attraction for tourists. The purposes of this research have identified tourist objects and attractions, determined eligibility for agrotourism development and tourist visiting decision, and compile a strategic plan for agrotourism development. The method used in this research was Tourism Object and Attraction (ODTW) analysis, Tourism Opportunity Spectrum (TOS) analysis, Strength-Weaknes-Opportunity-Threat (SWOT) analysis, and Strategic Architecture method for compiled a strategic plan. The result of study showed that there are three villages with a high potential classification, or 50% for agrotourism development in Batang Onang sub-district, so that villages are recommending for agrotourism development; meanwhile, villages with a low potential classification will be proposing for supporting agrotourism development. The Eligibility of agrotourism development into the category of eligibilities close to high, or 63,9%, and the eligibility of tourist visiting decision to Batang Onang sub-district into the category of eligibilities close to high, or 71,3%. The tourists evaluated that natural beauty, the friendliness of people, and the popularity of tourist objects are the main goals of visiting this sub-district. Furthermore, the development of agrotourism in five years needs turn-around strategies and grow-build strategies; this position means which there are great agrotourism opportunities, but Batang Onang sub-district has obstacles or weaknesses, so the best strategy used is nine alternative W-O strategies. The first recommendation for agrotourism development program is the government, instructor, and village staff collaborate to socialize the latest agricultural technology to the community and farmers; then last the government,
Keyword: agrotourism, rural potential development, strategic architecture

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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