Judul: Interaction of Social-Ecological Systems Tourism Object of Pasir Perawan Beach, Pari Island, Seribu Islands, DKI Jakarta
Abstrak: Pantai Pasir Perawan merupakan objek wisata yang terkenal di Pulau Pari. Menyeimbangkan fungsi sosial dan ekologi menjadi tantangan bagi pengelolaan kawasan tersebut. Penelitian ini bertujuan untuk mendeskripsikan dan memetakan Sistem Sosial-Ekologi yang terbangun di Pantai Pasir Perawan serta menyusun strategi pengelolaannya. Penelitian dilaksanakan pada bulan September hingga November 2023 di kawasan Pantai Pasir Perawan menggunakan pendekatan Sistem Sosial-Ekologi. Interaksi Sistem Sosial-Ekologi Pantai Pasir Perawan terbangun dari pemanfaatan pantai sebagai objek wisata. Saat ini, pengelolaan yang diterapkan belum optimal dalam mengatur aktivitas para pemanfaat sehingga berdampak negatif bagi Pantai Pasir Perawan. Strategi pengelolaan yang dapat direkomendasikan meliputi peningkatan pengawasan penggunaan sumber daya, penyuluhan dan sosialisasi tentang pentingnya menjaga ekosistem pantai kepada masyarakat dan wisatawan, serta meningkatkan koordinasi dan komunikasi antar pihak untuk menciptakan pengelolaan pantai Pasir Perawan yang berkelanjutan., Pasir Perawan Beach is the most famous tourist attraction on Pari Island. Balancing social and ecological functions poses a challenge for managing the area. This study aims to describe and map the Social-Ecological System (SES) developed at Pasir Perawan Beach and to develop management strategies. The research was conducted from September to November 2023 in the Pasir Perawan Beach area using the Social-Ecological System (SES) approach. The Social-Ecological System (SES) interactions at Pasir Perawan Beach arise from the utilization of the beach as a tourist destination. Currently, the management implemented is not yet optimal in regulating the activities of users, thus having a negative impact on Pasir Perawan Beach. Recommended management strategies may include enhancing resource usage monitoring, providing education and outreach regarding the importance of preserving the coastal ecosystem to both the community and tourists, as well as improving coordination and communication among stakeholders to establish sustainable management of Pasir Perawan Beach.
Keyword: Pari Island, Pasir Perawan Beach, Social-Ecological System

Judul: Interaction of Social-Ecological Systems Tourism Object of Pasir Perawan Beach, Pari Island, Seribu Islands, DKI Jakarta
Abstrak: Pantai Pasir Perawan merupakan objek wisata yang terkenal di Pulau Pari. Menyeimbangkan fungsi sosial dan ekologi menjadi tantangan bagi pengelolaan kawasan tersebut. Penelitian ini bertujuan untuk mendeskripsikan dan memetakan Sistem Sosial-Ekologi yang terbangun di Pantai Pasir Perawan serta menyusun strategi pengelolaannya. Penelitian dilaksanakan pada bulan September hingga November 2023 di kawasan Pantai Pasir Perawan menggunakan pendekatan Sistem Sosial-Ekologi. Interaksi Sistem Sosial-Ekologi Pantai Pasir Perawan terbangun dari pemanfaatan pantai sebagai objek wisata. Saat ini, pengelolaan yang diterapkan belum optimal dalam mengatur aktivitas para pemanfaat sehingga berdampak negatif bagi Pantai Pasir Perawan. Strategi pengelolaan yang dapat direkomendasikan meliputi peningkatan pengawasan penggunaan sumber daya, penyuluhan dan sosialisasi tentang pentingnya menjaga ekosistem pantai kepada masyarakat dan wisatawan, serta meningkatkan koordinasi dan komunikasi antar pihak untuk menciptakan pengelolaan pantai Pasir Perawan yang berkelanjutan., Pasir Perawan Beach is the most famous tourist attraction on Pari Island. Balancing social and ecological functions poses a challenge for managing the area. This study aims to describe and map the Social-Ecological System (SES) developed at Pasir Perawan Beach and to develop management strategies. The research was conducted from September to November 2023 in the Pasir Perawan Beach area using the Social-Ecological System (SES) approach. The Social-Ecological System (SES) interactions at Pasir Perawan Beach arise from the utilization of the beach as a tourist destination. Currently, the management implemented is not yet optimal in regulating the activities of users, thus having a negative impact on Pasir Perawan Beach. Recommended management strategies may include enhancing resource usage monitoring, providing education and outreach regarding the importance of preserving the coastal ecosystem to both the community and tourists, as well as improving coordination and communication among stakeholders to establish sustainable management of Pasir Perawan Beach.
Keyword: Pari Island, Pasir Perawan Beach, Social-Ecological System

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.
Keyword: