Judul: A Comparison of Microcellulose and Nanocellulose as A Matrix Polymer Reinforcement Agent: A Meta-analysis
Abstrak: Both of nanocellulose and microcellulose performed a better matrix polymer property when applied as a reinforced agent. Both of them has advantages and disadvantages respectively. Through a meta-analysis of 47 literature sources and 635 treatments, their reinforcement properties were examined. Significant distinctions were found between microcellulose and nanocellulose in total crystallinity index (p<0.001), hydrogen bound index (p<0.025), lateral order index (p=0.008), temperature onset (p=0.005), tensile modulus (p=0.004), and elongation at break (p<0.001). However, no significant differences were detected in temperature at maximum degradation (p=0.281), tensile strength (p=0.215), and water vapor permeability (p=0.174). The graphical analysis revealed that the most commonly used concentrations were 2.5% for nanocellulose and 3.2% for microcellulose. However, laboratory validation uncovered biases, with significant differences observed in tensile strength (p=0.038) and tensile modulus (p=0.008), while elongation showed no significant difference (p=0.997). Publication bias was observed through the Egger's regression test and Begg's correlation test, while no bias was found using the Rosenberg's fail-safe N test.
Keyword: composite, microcellulose, nanocellulose, reinforcement agent

Judul: Pengaruh Metode Isolasi terhadap Sifat Nanoselulosa: Meta-analisis
Abstrak: There are many researches about nanocellulose isolation and its characterization. However, a quantitative conclusion according to the past findings about the difference between the effect of the isolation method on the properties of nanocellulose hasn’t been studied yet. In this final project, meta-analysis was carried out from 28 scientific journals and gathered 404 treatments which grouped into each parameter. Fiber diameter, fiber length, crystallinity index, temperature on set, and temperature at maximum degradation were the parameter analyzed by applying independent t-test method, while tensile strength, tensile modulus, and elongation at break were the parameter analyzed by applying standard mean difference method. Fiber length, fiber diameter, temperature at maximum degradation, tensile strength, tensile modulus, and elongation at break were significantly affected by the isolation method p < 0.05. Crystallinity index, and onset temperature were not significantly affected by the isolation method P > 0.05. This result showed that there were parameters which more significantly affected to the isolation method which should be more taken in account for the future development of nanocellulose.
Keyword: independent t-test, isolation method, meta-analysis, nanocellulose properties, standardized mean difference

Judul: Psittacosis Sebagai Zoonosis Penting Yang Berasal Dari Burung
Abstrak: Psittacosis atau ornithosis adalah penyakit menular dari burung kepada manusia. Agens penyebab psittacosis termasuk ke dalam virus psittacosis-lymphogranuloma venereum group yang disebut Chlamydia psittaci. C. psittaci hanya dapat berkembang biak di dalam jaringan hidup tetapi peka terhadap antibiotik. Penyebaran penyakit ini sangat luas, terdapat hampir di seluruh dunia. Di Indonesia penyakit ini belum pernah di diagnosa, tetapi mengingat terdapat demikian banyaknya jenis burung maka diperkirakan psittacosis ini sudah ada. Kasus pada manusia pertamakali ditemukan oleh Ritter pada tahun 1879, di Eropa. Waktu itu dikenal sebagai pneumotyphus. Chlamydia psittaci tidak hanya sebagai penyebab infeksi pada burung, juga bisa menyebabkan infeksi pada mamalia diantaranya sapi, kerbau, kambing, domba, babi dan kucing. Pada kucing dikenal sebagai feline pneumonitis. Pada domba atau kambing mengakibatkan enzootic abortion. Pada burung, kalkun merupakan unggas paling rentan diikuti oleh burung psittacine dan burung lain di luar famili psittacidae. Virulensinyapun berbeda-beda. Yang berasal dari kalkun bervirulensi tinggi, sedangkan yang berasal dari burung merpati bisa bervirulensi tinggi bisa juga bervirulensi rendah. Penularan terjadi melalui kontak langsung maupun ti- dak langsung. Penularan melalui telur tidak terjadi. Umumnya penyakit ini memperlihatkan gejala klinis berupa deman, lesu, lemah, anorexia, kurus, diarrhea ber- warna kekuningan, discharge dari mata dan hidung, conjunc- tivitis. Gejala khas pada kalkun adalah istirahat dengan sternum sebagai dasarnya, karena adanya tekanan dari bagian perut yang sakit. Sedangkan pada manusia memperlihatkan adanya demam, kadang-kadang merasa dingin, lesu, sakit kepala yang hebat, sakit pada bagian belakang badan dan photophobia…dst
Keyword: