Judul: Analysis of landslide hazard and risk in the upstream of Ciliwung Watershed and its relationship with spatial planning
Abstrak: The upstream of Ciliwung watershed geomorphology was characterized by hills and mountains relief which were formed by volcanic processes. The steep slopes dominating the region and the high rate of human activities reflected by the dynamic land use change had turned the upstream of Ciliwung watershed region into landslide hazard area. Some landslide cases continue to occur in the rainy season every year, causing a lot of losses. This indicates that the mitigation of landslide hazard and risk by the government has not optimal yet. This study aims: (1) to analyze and map the landslide hazard in the upstream of Ciliwung watershed based on several estimation models, (2) to analyze and map the landslide risk area based on the level of landslide hazard, the society vulnerability, and the region capacity in the upstream of Ciliwung watershed, (3) to analyze the consistency of land use with spatial planning map, (4) to formulate the spatial plan/spatial arrangement guidance as an attempt to minimize the landslide disaster. The methods used in this study were spatial analysis, attribute analysis and descriptive analysis. Spatial and attribute analysis were conducted by utilizing geographic information systems (GIS) with the score and weight for each parameter, which is further classified into five classes, namely very low, low, moderate, high, and very high class. The higher the score and the weight, the higher the impact of the landslide cases, and vice versa. Spatial and attribute analysis included the mapping of landslide hazard, the mapping of vulnerability, the mapping of capacity, the mapping of landslide risk and the mapping of land use consistency. Descriptive analysis was performed to determine the relationship between spatial arrangement and landslide hazard, consistency level and landslide risk. The results of the study showed that the upstream of Ciliwung watershed has: (1) quite varied classes of landslide hazard, ranging from low to very high class, with the largest percentage is at the moderate class (54.89%); (2) very varied classes of society vulnerability, ranging from very low to very high class, dominated by the moderate class (53.25%); (3) high and very high region capacity classes; (4) the landslide risk classes which are spread almost evenly in very low class (39.75%), low class (32.02%), and moderate class (27.16%); (5) the land use of spatial plan is still at moderate to very high class of landslide risk and hazard; (6) the level of land use consistency toward spatial plan is still low (69.22%).
Keyword: 

Judul: Evaluasi Risiko Banjir dan Pola Ruang di Daerah Aliran Sungai Cisadane.
Abstrak: Flood disaster in Cisadane river have resulted substantial consequences in Jakarta and Banten (Tangerang) regions anually. To cope with the problem, flood assessment in the watershed should be conducted to establish disaster mitigation strategy constructed in spatial planning. This research aims (1) to refine land cover and landform map in the watershed; (2) to estimate Cisadane peak discharge; (3) to analyze flood hazard and the associated risk; and (4) to evaluate current spatial planning based on established land cover, flood hazard, and flood risk. Geographic information systems (GIS) coupled with multiple criteria evaluation (MCE) is demonstrated to assess flood hazard considering several parameters, including landforms and recorded flood events. In this research, flood risk is modeled as a function of flood hazard and its vulnerability and comprises of several variables such as social, economic, demographic, and physical properties. It was found that spatial distribution of flood hazard is influenced by flat landform and shaped by fluvial processes and fluvio-marine landforms. Flood is affected by upstream precipitation and downstream water fluctuation (tidal). Flood hazard and risk is classified into low, moderate, and high level. This research found that areas having low, moderate and high-level flood hazard are about 37.124 ha, 15.564 ha, and 1.587 ha respectively. Majority of research area are low risk (41.415 ha), while about 10.972 ha areas are categorized in moderate level. Only about 1.891 ha regions are at high-level risk. Largest flood is contributed by downstream Cisadane region, which has the highest peak discharge (1.833 m3 sec-1). Analysis of spatial planning indicates that flood mitigation is urgent, especially through drainage and dyke development.
Keyword: hazard, risk, flood, GIS, MCE, Cisadane watershed, spatial plan

Judul: Keberadaan Antibodi Asal Induk Newcastle Disease (ND) dan Infectious Bronchitis (IB) pada Broiler yang Divaksinasi Vaksin Rekombinan HVT-IBD
Abstrak: Penelitian ini bertujuan untuk mempelajari keberadaan antibodi asal induk terhadap virus Newcastle Disease (ND) dan Infectious Bronchitis (IB) pada broiler yang divaksinasi dengan vaksin rekombinan Herpesvirus of Turkey (HVT) - Infectious Bursal Disease (IBD). Pada penelitian ini digunakan dua kelompok ayam yaitu: Kelompok Vaksinasi dan Tidak Vaksinasi. Kelompok vaksinasi menerima vaksin rekombinan HVT-IBD pada umur 1 hari. Sampel serum dikoleksi pada umur 3, 6, 9, 12, 15, 19, 22, 26, 29, dan 33 hari. Titer antibodi ND ditentukan dengan uji Hemaglutinasi Inhibisi (HI), sedangkan Enzyme-linked Immunosorbent Assay (ELISA) digunakan untuk menentukan titer antibodi IB. Antibodi ND pada kedua kelompok masih terdeteksi sampai broiler berumur 33 hari, namun titer antibodi ND positif hanya sampai umur 6 hari dan tidak mencapai level protektif. Antibodi IB masih pada level positif sampai dengan umur 6 hari pada kelompok divaksin dan 3 hari pada kelompok tidak divaksin. Hasil penelitian ini mengindikasikan bahwa diperlukan vaksinasi ND pada broiler berumur 3 hari dan vaksinasi IB pada broiler berumur lebih dari 6 hari.
Keyword: Antibodi asal induk, broiler, Infectious, Bronchitis, Newcastle Disease