Judul: Identify Potential of Dengue Hermologic Fever (DHF) Vulnerabilities as Climate Change Impacts with The Logit Model (Study in Jakarta Province)
Abstrak: Global warming as the trigger of climate change is a very important issue in many countries, the data showed global average temperature increase by 0.74oC during the 20th century. Rising sea levels from the 19th century until the 20th The results of ordinal logistic regression analysis, the models with socio-demographic and climatic variables as predictor is a good model with about 80% accuracy rate, and pass the test individually and overall. So by using the model to calculate the degree of vulnerability of each district then the resulting degree of vulnerability to be spatial in the map. century amounted to 0,17 m, this is consistent with extensive snow cover decreased by 7% since 1900. The fact of climate change and Indonesia's geographical position is on the growth of endemic mosquito Aedes aegypti as a dengue vector, Climate change will accelerate the spread of dengue virus due to changing rainfall patterns, high frequency and irregular rainfall and warmer temperatures will increase the number of mosquito Aedes aegypti. The Purpose of this research is determining the association between risk factors of DHF with Climate (Temperature and Rainfall), determining the factors that influence susceptibility DHF region of Jakarta, and social demography in Jakarta area and the finally purpose is determining the potential vulnerability of dengue in the Jakarta province as well as display them spatially in a map of dengue due to climate change vulnerability.
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Judul: Dynamic Models of Climate Variations and the Incidence of Dengue Hemorrhagic Fever (DHF)
Abstrak: Demam Berdarah Dengue (DBD) merupakan penyakit akut, bersifat endemik tetapi secara periodik dapat mendatangkan kejadian luar biasa. Kota Bogor merupakan salah satu kota endemik DBD. Penelitian ini bertujuan memodelkan dampak kerugian dari kejadian DBD Kota Bogor berdasarkan variasi iklim. Data yang digunakan dalam penelitian antara lain curah hujan, hari hujan, suhu, kelembaban relatif, prevalensi penyakit DBD, nilai PDB, dan lainnya. Metode analisis data dilakukan dengan mengkaji korelasi antara faktor iklim dan tingkat prevalensi penyakit DBD, kemudian membuat model perhitungan dampak perubahan kejadian di masa depan pada prevalensi penyakit DBD. Penilaian dampak dilakukan dengan menghitung rasio kerugian yang diakibatkan dari penambahan jumlah prevalensi penyakit di Kota Bogor pada masa depan. Dalam kurun waktu 10 tahun, pola kejadian DBD Kota Bogor terlihat mencapai puncak pada musim hujan mencapai titik terendah saat musim kemarau. Berdasarkan hasil uji statistik, kejadian DBD di Kota Bogor tahun 2010-2019 memiliki korelasi positif yang nyata dengan kelembaban relatif (r = 0.493) dan curah hujan (r = 0,239). Suhu udara memiliki korelasi negatif nyata (r = -0,262), sedangkan hari hujan tidak memiliki korelasi dengan kejadian DBD (r = 0,004). Pada model perhitungan, proyeksi total pasien memengaruhi dampak kerugian kejadian DBD di masa depan. Berdasarkan hasil, jumlah pasien proyeksi DBD di Kota Bogor mengalami peningkatan. Peningkatan tersebut mengakibatkan kerugian di masa depan sebesar 22,8% menjadi 185 milyar rupiah, karena adanya perubahan iklim di masa depan dan secara tidak langsung memengaruhi jumlah kejadian DBD., Dengue Hemorrhagic Fever (DHF) is an acute disease, endemic but periodically can cause extraordinary events. Bogor City is one of the dengue endemic cities. This study aims to model the impact of losses from the incidence of dengue fever in Bogor based on climate variations. The data used in the study included rainfall, rainy days, temperature, relative humidity, DHF prevalence, GDP value, and others. The method of data analysis was carried out by examining the correlation between climatic factors and the prevalence level of DHF, then making a model for calculating the impact of changes in future events on the prevalence of DHF. The impact assessment is carried out by calculating the ratio of losses resulting from increasing the number of disease prevalence in the city of Bogor in the future. In a period of 10 years, the pattern of dengue fever in Bogor City is seen to peak in the rainy season and reach its lowest point during the dry season. Based on the results of statistical tests, the incidence of dengue fever in Bogor City in 2010-2019 has a significant positive correlation with relative humidity (r = 0.493) and rainfall (r = 0.239). Air temperature has a significant negative correlation (r = -0.262), while a rainy day has no correlation with the incidence of dengue fever (r = 0.004). In the calculation model, the projection of the total patient affects the impact of the loss on future DHF events. Based on the results, the number of DHF projection patients in Bogor City has increased. This increase resulted in future losses of 22.8% to 185 billion rupiah, due to climate change in the future and indirectly affecting the
Keyword: Bogor City, climate, dengue hemorrhagic fever (DHF), impact loss, model

Judul: Natural Pearlescent Pigment Dari Kristal Guanin Sisik Ikan Bandeng (Chanos Chanos)
Abstrak: Pearlescent pigment yang dikenal dengan nama pearl essence atau fish silver merupakan pigmen berwarna keperakan yang memiliki kenampakan seperti mutiara. Natural pearlescent pigment diperoleh dari sisik ikan dengan kandungan guanin 75-97%, dan kini mulai banyak digunakan pada industri personal care dan produk kosmetika. Penelitian ini bertujuan untuk menentukan teknologi ekstraksi natural pearlescent pigment dan karakteristik kualitatif kristal guanin pada sisik ikan bandeng (Chanos chanos). Perlakuan dalam penelitian ini meliputi ekstraksi menggunakan air deionisasi dengan sisik yang dibekukan terlebih dahulu, air deionisasi 10 οC, dimetil sulfoksida 15%, dan 25% (v/v). Hasil spektrum absorbansi UV-Vis menunjukkan kristal guanin merupakan pigmen berwarna putih berdasarkan serapan pada panjang gelombang 200-800 nm. Hasil terbaik diperoleh pada ekstraksi menggunakan air deionisasi dengan sisik beku nilai kristalinitas 68,4%, serapan gugus amina pada 3410 cm-1 dan gugus amida pada1681 cm-1, puncak intensitas 2θ pada sudut 27,7° yang menunjukan identitas dari kristal guanin anhidrat. Tingkat kandungan guanin sebesar 0,0455 ± 0,0033 g (0,46%).
Keyword: Dimetil sulfoksida, guanin, kosmetik, kristalinitas, pearlescent pigment