Judul: Incidence Salmonella spp.in chicken meat sold at the markets in West Jakarta
Abstrak: This research was aimed to know the existence of Salmonella spp. in chicken meat, handling implementation of chicken meat and water utilized in supermarkets and traditional markets of West Jakarta .. A sum of 300 samples consist of 200 samples of 20 supermarkets (80 samples of chicken meat, 100 samples of swab and 20 samples of water) while 100 samples from 10 traditional markets (40 samples chicken meat, 40 samples swab and 20 samples of water) were tested on the existence of Salmonella spp. SNI 19-2897-1992, method of identification. The testing product indicated that 19 (23,75%) samples from 80 chicken meat samples taken from supermarkets were contaminatied by Salmonella spp,.while in traditional market were negative from Salmonella spp .. Observation against sanitation and hygiene factors of supermarket was done with interviews and filling questionairies. Datas from this observation were analyzed by testing of chi-square to know the association of the factors sanitation and hygiene and contamination of Salmonella spp. of chicken meat. The test result showed that there were significant association between sanitation and hygiene factors with the presence of Salmonella spp. in chicken meat at supermarkets.
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Judul: Prevalence and Contamination Risk Profile of  Salmonella spp. on Chicken Carcasses in Retail in the West Java Region
Abstrak: Jawa Barat merupakan salah satu daerah utama penyedia ayam di Indonesia Bakteri Salmonella spp. merupakan bakteri patogen penyebab penyakit bawaan pangan yang dapat mengkontaminasi karkas ayam salah satunya karena penangangan yang salah di tahap ritel. Penelitian ini bertujuan untuk menghitung prevalensi dan jumlah kontaminasi serta menentukan faktor kritis kontaminasi Salmonella spp. di tahap ritel. Sampel penelitian berasal dari 12 kota/kabupaten di wilayah Jawa Barat. Metode penelitian dilakukan melalui penghimpunan data sekunder, pengambilan data survei, analisis kuantitatif Salmonella spp. menggunakan metode spread plate count dengan media selektif agar XLT4, serta profil risiko dengan analisis sensitivitas melalui simulasi Monte Carlo 10.000 iterasi menggunakan software Oracle Crystall Ball. Hasil penghimpunan data sekunder diperoleh prevalensi kontaminasi Salmonella spp. sebesar 78% (n=363). Hasil analisis kuantitatif Salmonella spp. pada karkas ayam yang berasal dari pasar OKtradisional menunjukkan prevalensi 65% (n=40) dengan konsentrasi 3.25± 0.71 Log CFU/g, dan dari ritel modern menunjukkan prevalensi sebesar 40% (n=30) dengan konsentrasi 0.24±0.79 Log CFU/g. Analisis sensitivitas menunjukkan nilai kontribusi pada aspek yang paling penting yaitu pengemasan saat displai (33.5%), kebersihan fasilitas displai (26.5%) dan suhu displai (10.9%). Korelasi peringkat tertinggi menunjukkan bahwa aspek-aspek tersebut mempunyai kontribusi yang tinggi terhadap tingkat risiko kontaminasi dan dapat menjadi faktor prioritas untuk dikendalikan., West Java was one of the main regions supplying chickens in Indonesia. Salmonella spp. Bacteria were pathogenic bacteria that caused foodborne illnesses and could contaminate chicken carcasses, partly due to mishandling at the retail stage. This study aimed to calculate the prevalence and level of contamination, as well as identify critical factors of Salmonella spp. contamination at the retail stage. The study samples were taken from 12 cities/regencies in the West Java region. The research methods included collecting secondary data, conducting surveys, and performing a quantitative analysis of Salmonella spp. using the spread plate count method with XLT4 selective agar media, and developing a risk profile with sensitivity analysis through 10,000 iterations of Monte Carlo simulation using Oracle Crystal Ball software. The secondary data collection results showed a prevalence of Salmonella spp. contamination of 78% (n=363). The quantitative analysis results for Salmonella spp. on chicken carcasses from traditional markets showed a prevalence of 65% (n=40) with a concentration of 3.25±0.71 Log CFU/g, while those from modern retail showed a prevalence of 40% (n=30) with a concentration of 0.24±0.79 Log CFU/g. Sensitivity analysis indicated the most critical factors were packaging during display (33.5%), display facility cleanliness (26.5%), and display temperature (10.9%). The highest rank correlation showed that these factors significantly contributed to the contamination risk level and could be the priority factors to control.
Keyword: contamination, chicken carcass, risk, Salmonella spp, ritel

Judul: Pembuatan Film Tipis Lithium Niobat (LiNbO3) Menggunakan Metode Chemical Solution Deposition (CSD) dengan Variasi Kecepatan Putar (Rpm).
Abstrak: Film tipis merupakan salah satu aspek yang mendapat perhatian sangat besar dalam bidang material, karena film tipis merupakan material menarik yang memiliki sifat optik yang sangat tergantung pada konstanta dielektrik, indeks bias, dan energi gap. Lithium Niobat (LiNbO3 ) dapat digunakan sebagai pelapis pada film tipis karena memiliki sifat piezoelektrik, electrooptical, pyroelectrical dan photorefractive yang sangat baik. Film tipis Lithium Niobat (LiNbO3 ) ditumbuhkan menggunakan metode Chemical Solution Deposition (CSD) dengan variasi kecepatan 3500 rpm, 5000 rpm, 6500 rpm, dan 8000 rpm. Metode ini memiliki keunggulan dapat mengontrol stokiometri film tipis dengan kualitas yang baik, prosedur yang mudah dan membutukan biaya yang relatif murah. Energi band gap yang dihasilkan dari film tipis Lithium Niobat (LiNbO3) berkisar antara rentang 2.1 eV – 2.8 eV dengan indeks bias berada pada rentang 2.18-3.2. Film tipis LiNbO3 memiliki parameter kisi a=b=5.54Ǻ dan c = 16.35 Ǻ. Struktur morfologi film tipis adalah permukaan yang homogen dan ukuran kristal berada pada rentang 0.417 μm – 0.680 μm.
Keyword: film tipis, sifat optik, litium niobat, chemical solution deposition, kecepatan putar