Judul: Serapan Karbon di Taman Konservasi Kampus IPB, Dramaga
Abstrak: Hutan kota dapat menyerap CO2 di udara melalui proses fotosintesis, penyerapan CO2 dalam proses fotosintesis ini akan menghasilkan biomassa yang merupakan simpanan karbon (carbon pool) yang terkandung dalam pohon. Teknik pengambilan data menggunakan metode sensus dan metode pengumpulan data contoh simple random sampling dengan dua luasan plot yaitu 20 x 20 m2 dan 20 x 40 m2 pada IS 100%, 50% dan 25% menggunakan persamaan alometrik Manuri et al. (2017) dan Ketterings et al. (2001). Hasil penelitian menunjukkan hasil yang lebih teliti didapatkan dengan menggunakan luasan plot dan intensitas sampling yang lebih sedangkan, hasil yang lebih akurat didapatkan dengan menggunakan luasan plot dan intensitas sampling yang lebih kecil., Urban forests can absorb CO2 in the air through the process of photosynthesis, the absorption of CO2 in this photosynthesis process will produce biomass which is a carbon pool (carbon pool) contained in trees. The data collection technique used the census method and the sample data collection method was simple random sampling with two plot areas, namely 20 x 20 m2 and 20 x 40 m2 at IS 100%, 50% and 25% using the allometric equations of Manuri et al. (2017) and Ketterings et al. (2001). The results showed that more precise results were obtained by using a larger plot area and sampling intensity, while more accurate results were obtained by using a smaller plot area and sampling intensity.
Keyword: Intensitas sampling, luasan plot, serapan CO2, CO2 absorption, plot area, sampling intensity

Judul: Nilai Dugaan Serapan Karbon Dioksida Berdasarkan Plot Lingkaran dan Plot N-Jumlah Pohon di Areal Rehabilitasi ConocoPhilips Hutan Pendidikan Gunung Walat
Abstrak: Kegiatan inventarisasi hutan tanaman untuk menduga serapan karbon dioksida umumnya menggunakan metode penarikan contoh dengan bentuk plot contoh berupa lingkaran dan plot n-jumlah pohon. Penelitian ini bertujuan menduga nilai cadangan karbon dan serapan karbon dioksida berdasarkan plot lingkaran (0,04 ha) dan plot n-jumlah pohon (6, 7, dan 8 pohon) serta membandingkan hasil pendugaan kedua bentuk plot contoh tersebut. Metode stratified systematic sampling with random start digunakan dalam pendugaan tersebut pada areal rehabilitasi ConocoPhillips di Hutan Pendidikan Gunung Walat dengan intensitas sampling sebesar 16% dan jarak antar plot sejauh 50 m. Sebanyak 40 plot contoh terpilih dan tersebar pada areal tanaman tahun 2009, 2010, 2011, dan 2014. Hasil penelitian menunjukkan bahwa nilai dugaan cadangan karbon dan serapan karbon sebesar 6,24 ton/ha dan 22,89 ton/ha. Nilai dugaan cadangan karbon dan serapan karbon berdasarkan plot lingkaran mempunyai ketelitian paling baik dibandingkan plot 6-jumlah pohon., Plantation forest inventory activities to estimate carbon dioxide absorption generally use the sampling approach with sample plots in the form of circles and n-number of trees. This study aims to estimate the value of carbon stocks and carbon dioxide absorption based on circular plots (0,04 ha) and n-number of trees (6, 7, and 8 trees) and to compare the estimation result of the two sample plots. The stratified systematic sampling with random start was used in this estimation in the ConocoPhillips rehabilitation area in Gunung Walat Educational Forest with a sampling intensity of 16% and a distance between plots of 50 m. A total of 40 sample plots were selected and spread over the plantation areas in 2009, 2010, 2011, and 2014. The result showed that the estimated value of carbon stock and carbon sequestration were 6.24 tons/ha and 22.89 tons/ha. The estimated value of carbon stock and carbon sequestration based on the circular plot has the best accuracy compared to the 6-number of trees plot.
Keyword: distance sampling, efisiensi relatif, pembandingan plot contoh, stratified systematic sampling with random start

Judul: Studi Kasus Liver Neoplasia pada Anjing Shih Tzu
Abstrak: Liver neoplasia is the excessive and uncontrolled replication of hepatocytes that forms nodules visible in ultrasonography. The purpose of this study is to study and discuss the characteristic, diagnosis and treatment of liver neoplasm through the interpretation of ultrasonography and hematology in a Shih Tzu dog. Ultrasonography is conducted with a Chison Q8 ultrasound machine with a 5 to 7 MHz frequency convex probe on lateral recumbency. The blood cells, liver enzymes and nodules sizes were the main parameters in this study. The results in the period of three years from 2021 to 2023 were interpreted and supported with secondary data sources. The Shih Tzu dog is 14 years old in the year 2023 with a body weight of 5.21kg. No obvious clinical signs were observed during previous examinations. However, lethargy, vomiting and anorexia were recorded in its latest examination. Thrombocytosis, granulocytosis, high liver enzymes and hypoglycemia, which are some of the neoplastic clinical manifestations were also presented by this patient. Besides, liver neoplasm, spleen neoplasm and biliary sludge were the sonogram findings of this patient. The liver and spleen neoplasm was observed stable, while the biliary sludge volume fluctuated. The treatment strategy recorded is Ondansetron, Samylin®, Ornipural and Ursodeoxycholic acid.
Keyword: Blood biochemistry profile, Hematology, Liver Neoplasia, Shih Tzu, Ultrasonography