Judul: Ekstrak Serisin Ulat Sutra (Samia cynthia ricini) sebagai Krim Obat Luka Luar pada Tikus Putih (Sprague-Dawley)
Abstrak: Serisin dapat dimanfaatkan sebagai obat luka. Penelitian ini dilakukan untuk menganalisis efektivitas penggunaan ekstrak serisin ulat sutra eri (Samia cynthia ricini) sebagai obat luka sayatan pada tikus Sprague-Dawley jantan dewasa. Krim yang diteliti, yaitu krim dengan penambahan serisin 5%, 8% dan tanpa serisin. Uji yang dilakukan diantaranya uji pH, viskositas, homogenitas, tipe emulsi pada krim dan efek luka pada tikus berupa pengamatan bobot badan, iritasi kulit dan penurunan panjang sayatan pada 12 tikus putih selama 10 hari. Hasil pengamatan krim sampel menunjukkan bahwa penyimpanan pada suhu ruang (25 ℃) dan perlakuan dengan penambahan dan tanpa serisin berpengaruh nyata (P<0,05) terhadap pH dan viskositas, serta krim obat yang dihasilkan tergolong homogen dengan tipe emulsi minyak dalam air. Pengamatan terhadap panjang sayatan dan iritasi kulit berpengaruh nyata (P<0,05) pada perlakuan dengan penambahan dan tanpa serisin dalam waktu pengamatan yang telah ditentukan. Berdasarkan hasil maka disimpulkan bahwa krim penambahan ekstrak serisin eri terbukti berpengaruh positif terhadap karakteristik krim dan proses penyembuhan luka., Sericin can be used as a wound medicine. This study was conducted to analyze the effectiveness of using sericin extract of the silkworm eri (Samia cynthia ricini) as an incision wound medicine in Sprague-Dawley . The creams studied were creams with the addition of 5% sericin, 8% and without sericin. The tests carried out included testing of pH, viscosity, homogeneity, type of emulsion in cream and wound effects on rats in the form of observing body weight, skin irritation and decreasing incision length in 12 white rats for 10 days. The results of the observation of the sample cream showed that storage at room temperature (25 ) and treatment with the addition and without sericin had a significant effect (P<0,05) on pH and viscosity, and the resulting medicinal cream was relatively homogeneous with the type of oil-in-water emulsion. Observation of the length of the incision and skin irritation had a significant effect (P<0,05) on the treatment with the addition and without sericin within the specified observation time. Based on the results, it was concluded that the cream with the addition of sericin eri extract proved to have a positive effect on the characteristics of the cream and the wound healing process.
Keyword: external wound, medicinal cream, Samia cynthia ricini, sericin extract.

Judul: Test the Effectiveness of the Combination Gel of Turmeric Nanoparticles and Sea Cucumber: Histopathological Study of Skin Incision Wound Healing
Abstrak: Luka adalah terputusnya kontinuitas jaringan kulit. Luka akan menimbulkan rasa tidak nyaman pada penderitanya. Penelitian ini adalah bagian dari uji pendahuluan untuk mengevaluasi aplikasi kombinasi gel nanopartikel ekstrak kunyit dan jeli gamat untuk proses penyembuhan luka sayat pada tikus Sprague-Dawley berdasarkan pengamatan mikroskopis. Kulit 10 ekor tikus jantan disayat pada bagian punggung. Perlakuan dibagi menjadi lima kelompok yaitu, kontrol negatif (P0), gel kombinasi 0,5% (P1), 1%(P2), 2% (P3), dan kontrol positif (P4). Pengobatan dilakukan setiap hari selama seminggu. Secara histopatologi, spesimen diwarnai dengan Hematoksilin-Eosin untuk mengamati struktur kulit dan AE1/AE3 untuk melihat ekspresi sitokeratin. Pengamatan dievaluasi pada hari ke-2 dan ke-7 pasca perlukaan. Parameter histopatologi yang diamati adalah keropeng, epitelisasi, dan neovaskularisasi. Data disajikan secara deskriptif melalui foto. Hasil pengobatan luka gel kombinasi hari ke-2 dan ke-7 menunjukkan luka mengalami penyembuhan. Penyembuhan pada luka yang diobati dengan gel kombinasi konsentrasi 0,5% paling baik dibandingkan pengobatan konsentrasi lainnya., Wound is a break in the continuity of skin tissue. The wound will cause discomfort in the sufferer. This study is part of a preliminary test to evaluate the application of a combination of turmeric extract nanoparticle and jelly gamat for the wound healing process in Sprague-Dawley rats based on microscopic observations. The skins of 10 male rats were cut 3 cm left lateral area. The treatments were divided into five groups namely, negative control (P0), 0,5% gel combination (P1), 1% (P2), 2% (P3), and positive control (P4). Treatment was given everyday in a week. Histopathologically, the specimens were stained with Hematoxylin-Eosin to observe the skin structure and AE1 / AE3 to observe cytokeratin expression. The observations were evaluated on the second and seventh days post-injury. The histopathological parameters observed were scab, epithelial formation, and neovascularization. Data were presented descriptively through light microscope. The results of wound treatment on second and seventh day showed that the wound had a healing process. Healing of wounds treated with a 0.5% combination gel is the best among other consentration of treatment.
Keyword: jelly gamat, microscopic, turmeric, wound healing

Judul: Spatial distribution of net primary production (NPP) using modis data and correlation with climate variability
Abstrak: The most important global interactions between the biosphere and atmosphere involve the transfer of energy, water, and carbon. Carbon is assimilated by the biosphere through photosynthesis and released through autotrophic and heterotrophic respiration. Net Primary Production (NPP) is the net carbon fixed by vegetation through photosynthesis. NPP provides the carbon required for maintenance of the structure and functions of an ecosystem. NPP can be used in the term of net biomass accumulation to express the net flux of carbon between the atmosphere and terrestrial vegetation. NPP is a fundamental ecological variable, not only because it measures the energy input to the biosphere and terrestrial carbon dioxide assimilation, but also because of its significance in indicating the land surface area and status of a wide range of ecological process.
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