Judul: Aktivitas Antioksidan Nanokurkuminoid Temulawak Lokal Ciemas Pada Tikus Sprague-Dawley Betina
Abstrak: Java turmeric (Curcuma xanthorrhiza) is a typical Indonesian plants that have antioxidant activity. Clinical testing showed that curcumin safe at high doses (12 g/day) but has low bioavailability. Delivery systems by making of solid lipid nanoparticles made to improve bioavailability of curcuminoids. This study aims to measure antioxidant activity of nanocurcuminoid coated solid lipid in female rat induced by CCl4. Analysis of antioxidant activity by measuring Malondialdehyde (MDA) levels and activity of superoxide dismutase (SOD), gluthatione peroxidase (GPX) and peroxidase (POX). Nanocurcuminoids size that obtained was 114.4±33.8 nm with polydispersity index 0.218 and adsorption efficiency 79%. The results showed that administration of nanokurkuminoid dose of 1500 mg/kg in female rats induced by CCl4 were able to reduce levels of MDA (4.34 nmol/mL) and increasing the activity of SOD (64.70 %), GPx (3208.02 mU/mL) and POX (3.13 mU/mL). These results indicate nanokurkuminoid have antioxidant activity.
Keyword: SLN., nanocurcuminoid, female sprague-dawley, CCl4, antioxidant

Judul: Status Antioksidan Tikus Jantan Diinduksi CCl4 dengan Perlakuan Nanopartikel Kurkuminoid Temulawak Lokal Ciemas
Abstrak: Java turmeric (Curcuma xanthorrhiza) is a typical Indonesian plants that has antioxidant activity. Clinical testing showed that curcumin is safe at high doses (12 g/day) but has low bioavailability. This study aimed to measure the increase curcuminoids bioavailability through nanoparticle curcuminoids effectiveness as an antioxidant in rats induce CCl4. Nanoparticle curcuminoids was produced with homogenization-ultrasonication method, after that 27 male rats were divided into 9 groups that will be measured the liver antioxidant activity. The nanoparticle curcuminoids product showed good results with the adsorption efficiency 79% and a particle size 114.4 ± 33.8 nm with IP value 0.218. Generally, the condition of each group of rats did not showed behavior and other physiological symptoms disorder. The best formula from antioxidant status analysis demonstrated 1500 mg dose of nanoparticles can suppress oxidative stress conditions caused by CCl4 administration through decreased levels of MDA and GPx activity and increased activity of SOD and peroxidase than other groups
Keyword: nanoparticle., java turmeric, curcuminoids, bioavailability, antioxidant

Judul: 3D model reconstruction using aerial photo to measure object height
Abstrak: 3D reconstruction, especially for height extraction, using digital aerial photos taken from a non-metric camera and Unmanned Aerial Vehicle (UAV) is a challenging study. The purposes of the study are to determine the factors affect the accuracy of an object’s height reveal from a 3D model and establish procedures to deliver the optimal result. Two or more overlapping aerial photos can be constructed into the 3D model by applying the principles of collinearity and epipolar geometry using 3D reconstruction algorithm. Due to the instability of non-metric digital camera, the camera must be calibrated before 3D reconstruction is processed, in that way the quality of spatial extraction can be then measured. The study is conducted using 24 megapixels resolution Sony NEX7 digital camera and Hexacopter UAV. UAV was flown to a height of 50 m, 60 m and 70 m and placed at a certain position in order to get some height variations of camera. Camera Calibration Toolbox is utilized to calculate intrinsik parameters of the camera and a specific program is developed using MATLAB in order to build the 3D model and to obtain the object’s height. The result validation is done by comparing the height from 3D model with that one measured using Electronic Total Station. The accuracy of the object’s height up to 1 mm successfully achieved, with the largest height prediction error reaches 15.2 cm at 70 m flying height above ground level and average percentage error 4.07 for 20 objects.
Keyword: 3D reconstruction, collinearity, epipolar geometry, UAV