Judul: Penerapan Regresi Spasial pada Data Kemiskinan Kabupaten/Kota di Provinsi Jawa Barat Tahun 2012
Abstrak: Poverty is a social problem that normally occurs in the middle of society, especially in developing countries. One important aspect to support poverty reduction strategy is the availability of accurate poverty data. Good data can be used to evaluate government policies on poverty, compare poverty between regions and determine the targeted destitute population with an am to improve their living conditions. One effort to overcome poverty is to identify the variables that affect it. In this research, poverty issue is examined by percentage of poor people districts/cities in West Java Province in 2012, making use of spatial regression analysis. The analysis showed that the spatial lag models (SAR) produced better allegation parameters than classic regression models in case of spatial correlation. This can be seen from the smaller AIC of SAR models (129.62) than classic regression models (133.06). In SAR models, variables that significantly affect the percentage of poor people in district/cities are the percentage of households using clean water (X10) and households with floor area per capita (X21).
Keyword: Bogor Agricultural University (IPB), spatial lag models (SAR), Poverty

Judul: Penerapan Regresi Spasial untuk Data Kemiskinan Kabupaten di Pulau Jawa
Abstrak: Analisis regresi spasial merupakan analisis yang menduga pengaruh peubah penjelas terhadap peubah respon dengan ditambahkan pengaruh spasial di dalamnya. Peubah penjelas yang digunakan dalam penelitian ini adalah persentase buruh tani, persentase desa pertanian, persentase desa pertambangan, persentase desa industri, persentase desa perdagangan, persentase desa jasa, persentase Tenaga Kerja Indonesia (TKI), daerah kumuh, persentase keluarga tanpa listrik, persentase fasilitas pendidikan, fasilitas kesehatan, industri skala kecil dan rumah tangga, pasar, fasilitas kredit, stasiun TV yang dapat diterima di desa, persentase jalan aspal di sebuah desa, dan persentase jalan yang dapat digunakan oleh kendaraan beroda empat. Peubah respon berisi persentase kemiskinan kabupaten di Pulau Jawa. Kemiskinan suatu kabupaten tidak lepas dari pengaruh kemiskinan di kabupaten sekelilingnya. Hal ini mengindikasikan adanya pengaruh spasial. Penelitian ini bertujuan untuk mengidentifikasi peubah-peubah yang berpengaruh terhadap persentase kemiskinan kabupaten di Pulau Jawa dengan menggunakan pendekatan analisis regresi spasial, yaitu model otoregresif spasial (SAR) dan model galat spasial (SEM). Data yang digunakan dalam penelitian ini adalah data sekunder. Data berasal dari dua sumber, yaitu Data dan Informasi Kemiskinan (BPS 2008) dan Potensi Desa (PODES) tahun 2008. Hasil analisis menunjukkan bahwa model SAR memiliki nilai koefisien determinasi (R2) sebesar 57.18% dan Akaike Information Criterion (AIC) sebesar 647.080, sedangkan model SEM memiliki nilai R2 sebesar 50.99% dan AIC sebesar 653.650. Jadi, dapat disimpulkan bahwa model SAR lebih baik daripada SEM dalam memodelkan persentase kemiskinan kabupaten di Pulau Jawa. Pada model SAR peubah penjelas yang berpengaruh terhadap persentase kemiskinan kabupaten di Pulau Jawa adalah persentase desa pertanian, persentase fasilitas pendidikan, dan kemiskinan kabupaten di sekelilingnya.
Keyword: 

Judul: Sintesis Flavon dari Fenol dan Benzoil Klorida
Abstrak: Flavone is a class of flavonoid, commonly found in plants with wide bioactivity spectrum. A widely used flavone synthesis route is through acidcatalyzed oxidative cyclization of β-diketone. In this study, unsubstituted flavone had been synthesized via 5-step from phenol, with 22% yield and successfully increased the yield of previous study on Fries rearrangement of phenyl acetate and benzoylation of o-HAP steps. Phenol was acetylated resulting 93% phenyl acetate. AlCl3-catalyzed Fries rearrangement in 1.5 hour and at 120 °C converted phenyl acetate into o-hydroxyacetophenone (o-HAP) with 40% yield. AlCl3 as catalyst produced o-HAP with higher and reproducible yield compared with BF3·Et2O and ZnCl2. Benzoylation of o-HAP followed by Baker-Venkataraman rearrangement of the ester product using KOH in dried pyridine produced β-diketone 1-(2- hydroxyphenyl)-3-phenylpropane-1,3-dione. The yield of ester and β-diketone were 71% and 85%, respectively. Finally, oxidative cyclization of β-diketone with sulphuric acid as catalyst produced 99% of flavone. The flavone product had been characterized spectroscopically and its melting point as well.
Keyword: