Judul: Analisis Densitas Energi Konsumsi dan Status Gizi serta Pengaruhnya terhadap Daya Ingat Sesaat
Abstrak: The aim of this study was to analyze the correlation between dietary energy density, nutritional status and influence towards Bogor elementary students’s short term memory. Design of this study is cross sectional study with purpossive sampling 111 elementary school students in Bogor. Children’s allowance, parents educational background and income, nutritional knowledge, food consumption, physical activity and short term memory were analyzed by chi square and logistic regression. The results showed that most of student consumed high energy density with average of dietary energy density was 2,13 kkal/g for girls and 1,98 kkal/g for boys. Children’s allowance and mother’s educational were variabels that had significant correlation with dietary energy density. Most of them had normal nutritional status but 27% of them were overweight and obese. Nutritional knowledge and breakfast habit were variabels that had significant correlation with nutritional status. Only nutritional knowledge and nutritional status that has significant influence towards their short term memory
Keyword: elementary school student, short term memory, nutritional status, dietary energy density

Judul: Hubungan status gizi dan status anemia dengan daya ingat sesaat siswa di SDN Pasanggrahan 1, Desa Pasanggrahan, Kecamatan Tegal Waru, Kabupaten Purwakarta
Abstrak: Kekurangan zat gizi makro dan zat gizi mikro mempunyai dampak negatif terhadap anak perkembangan, termasuk fungsi kognitif anak. Tujuan dari penelitian ini adalah menganalisis hubungan status gizi dan status anemia terhadap pendek anak term memory di SDN Pasanggrahan 1. Studi cross sectional desain yang digunakan dalam penelitian ini. Lima puluh anak dari sekolah dasar ini adalah dipilih secara purposive sampling, namun hanya tiga puluh sembilan anak yang memenuhi syarat persyaratan. Tes memori jangka pendek yang digunakan dalam penelitian ini dilakukan dengan cara memberi beberapa kata yang harus dipelajari oleh anak dan kemudian diambil kata-katanya. Data tadi diproses oleh Microsoft Excel 2007 dan SPSS 16.0 untuk Windows. Hasil menunjukkan bahwa skor rata-rata sampel memori jangka pendek di pagi hari adalah lebih tinggi dari skor di sore hari. Status gizi mempunyai hubungan positif terhadap skor memori jangka pendek pada sore hari (p<0,1) dan pengetahuan gizi korelasi positif terhadap skor memori jangka pendek pada pagi dan sore hari (hal<0,1).
Keyword: Short term memory, School age children, Nutritional status, Anaemia status

Judul: Pemurnian dan karakterisasi protein inhibitor RNA helikase virus hepatitis C
Abstrak: Hepatitis C virus (HCV) infection is the second most common chronic viral infection in the world with global prevalence. This infection is contribution to chronic hepatitis and liver cirrhosis, often leading to hepatocellular carcinoma. There is no effective drug and vaccine available against HCV. The current standard treatment, a combination of pegylated interferon-α with ribavirin, is limited by its suboptimal response rate in a significant patient population, side effects, and affordability. Therefore, development of effective drug is needed. One approach to find out the candidate of antiviral drug is to discover the inhibitor of enzyme that essential for virus replication, such as RNA helicase. Streptomyces chartreusis 5-095 produce the inhibitor of HCV RNA helicase. The aim of this study was to purify the protein inhibitor which has inhibition activity against ATPase activity of RNA helicase HCV from S. chartreusis 5-095. The supernatant of culture S. chartreusis 5-095 exhibited high inhibiton activity against ATPase activity of RNA helicase HCV (approximately 72%) at 10 days of incubation. The extracellular protein inhibitor was partially purified by procedures of precipitation with ammonium sulfate to 65% saturation and gel filtration (Sephadex G50) using methanol water solution (4:6) as an eluen. The purity of protein inhibitor was monitored by SDS PAGE. The protein inhibitor showed a relative molecular mass were estimated to be 14 kDa and increased the purity 23,08 fold than those of the crude protein. The specific activity and IC50 after purification were 13,1338 U/mg and 0,0767 mg/mL, respectively. The activity of purified protein inhibitor showed its stability over pH range from 5-8 and optimum at pH 7,4. The inhibition activity showed its stability up to 70% at temperature 100 oC. The purified protein inhibitor relatively stable its activity at storage in the range of -20 oC to room temperature for 35 days.
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