Judul: Kajian Kadar dan Sebaran Logam Berat Timbal pada Daging, Hati, dan Ginjal Sapi Potong
Abstrak: The purpose of this research was to examine the lead levels and to explain the histological lead pattern distribution in meat, liver and kidney tissues of cows. Lead content was measured using Atomic Absorption Spectrophotometry (AAS) and Rhodizonate histological staining method. Result showed the lead levels in the cow’s meat, liver, and kidneys tissues were respectively 1.03 ppm, 1.59 ppm, 1.18 ppm in cows from Bogor; 1.45 ppm, 1.68 ppm, 1.001 ppm in cows from Boyolali; 1.25 ppm, 1.52 ppm, 1.16 ppm in cows from Gresik. Lead distribution was found in the connective tissue of the meat, in the hepatosit and portal triad of the liver, and in glomerular and proximal tubules of the kidney. It could be concluded that the lead levels has exceeded the threshold, with the highest levels found in cow’s liver from Boyolali. Lead pattern distribution was found in the connective tissue of the meat, in the hepatosit and portal triad of the liver, and in glomerular and proximal tubules of the kidney. Lead pattern distribution has no relation with the value measured as happened to meat.
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Judul: Kajian Kadar dan Sebaran Logam Berat Timbal (Pb) dalam Daging, Hati, dan Ginjal Ayam Broiler
Abstrak: Lead (Plumbum) is a heavy metal that can cause poisoning and can be accumulated in the animals body. The aims of this research were to measure the level of lead accumulation and to examine the lead distribution pattern in the meat, liver, and kidney of broiler chickens. The tissue sampels were collected from nine chickens, which origin village are Jasinga, Caringin, and Cihideung. The lead concentration in tissues was measured by using Atomic Absorbance Spectrofotometry machine and the lead distributions was approached using rhodizonate staining. The lead measurement results showed that the highest level is found in liver and kidney of broiler chicken. The distributions of lead metal in liver tissue were located in blood vessel, sinusoid and hepatocyte. Its distributions in kidney tissue were found in glomerular tissue and proximal tubules at the kidney cortex. In the meat, the lead was scattered in blood vessels of connective tissue and was not found in muscle cells.
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Judul: Penerbangan Otomatis Pesawat Tanpa Awak Jenis Sayap Tetap dengan iNav
Abstrak: Pesawat tanpa awak (UAV) dapat dikendalikan secara manual dengan remote control atau secara otomatis dengan flight controller (FC). Salah satu jenis UAV adalah sayap tetap yang memiliki bentuk seperti pesawat terbang pada umumnya. Penelitian ini bertujuan untuk melakukan penerbangan otomatis pada UAV jenis sayap tetap dengan mengkonfigurasi perangkat FC. UAV yang digunakan adalah model SkySurfer X8 dengan bentang sayap 1.4 m. FC yang digunakan adalah Matek F405-Wing yang dikonfigurasi dengan perangkat lunak iNav. Berdasarkan hasil uji terbang, UAV berhasil terbang secara otomatis mengikuti skenario yang diberikan. Skenario terjauh berupa persegi berukuran 600×600 m pada ketinggian 100 m, yang ditempuh dalam waktu sekitar 2 menit dengan kecepatan sekitar 65 km/jam. Diharapkan prosedur perakitan, konfigurasi, operasi, dan hasil data uji terbang dapat menjadi acuan dalam penelitian selanjutnya.
Keyword: iNav, penerbangan otomatis, pesawat tanpa awak, sayap tetap