Judul: Pengukuran kadar CO2 udara di dalam tegakan beberapa jenis hutan tanaman di Cikole dan Ciwidey, Jawa Barat
Abstrak: Karbondioksida (CO₂), merupakan salah satu gas rumah kaca yang emisinya ke udara paling tinggi. Lima puluh lima persen (55%) dari kontribusi gas rumah kaca terdiri dari CO2, sisanya terdiri dari 17 persen CFC 11 dan CFC 12, 15 persen metan, 7 persen CFC lainnya dan 6 persen nitrous oksida. Oleh sebab itu CO₂ dianggap sebagai penyumbang terbesar dalam pemanasan global (Houghton et al., 1990). Ogawa (1990) melaporkan bahwa konsentrasi CO2 selama 250 tahun belakangan ini (sejak tahun 1740) naik dari 280 ppm menjadi 350 ppm, dan diperkirakan apabila 100 tahun mendatang (sekitar tahun 2090) terjadi kenaikan konsentrasi CO2 menjadi dua kali akan mengakibatkan terjadinya perubahan iklim dunia, serta akan mengakibatkan peningkatan suhu permukaan bumi rata-rata antara 3-5,5 °C. Salah satu akibat yang dapat ditimbulkan oleh kenaikan suhu bumi yaitu akan menyebabkan mencairnya sebahagian dari es abadi yang terdapat di daerah Antartika dan Artatika, sehingga akan menambah volume air laut. Kenaikan permukaan air laut diperkirakan sekitar 50-80 cm. Indonesia sebagai negara kepulauan akan sangat merasakan akibatnya…dst
Keyword: CO2, Pinus merkusi, Agathis lorantifaku

Judul: Daya Rosot Beberapa Jenis Pohon Perkotaan terhadap Karbondioksida (CO2) (Studi Kasus di Jalur Hijau Jalan Raya Pajajaran-Bogor)
Abstrak: The global warming happens due to high concentration of certain gasses in the air which are called Green Houses Gasses (GHGs). The global warming is mostly caused by human activities and industries. Carbon dioxide (CO2) is the most important anthropogenic GHGs which caused a variety of activities in both cities moving or not moving as households, hotels, industries, motor vehicles and other activities require driving and heating energy partly derived from the combustion of fossil fuels such as diesel, kerosene and coal. Increased levels of CO2 in the urban air can be overcome with the forest one city. The increment of CO2 concentration in the city can be decreased by implementing urban trees. Carbon dioxide will be absorbed and converted into oxygen through photosynthesis process. The selection of urban trees is needed in order to decrease CO2 effectively. Therefore the study on carbon dioxide sink ability of urban plants should be conducted. The CO2 sink ability of urban trees was measured using carbohydrate method. The carbon dioxide mass was obtained by converting the carbohydrate mass produced from photosynthesis. Other data that were collected consisted of total and width of leaves. More leaves per tree have higher ability of carbon dioxide sink. Wider leaf has higher ability of carbon dioxide sink too. The ability of CO2 sinks from nine species of urban trees is stated in cm2 of leaf width per hour (g CO2/cm2/hour). The result shows that the ability of C. manghas is 8,391 x 10-4; A. mangium is 3,430 x 10-4; S. macrophylla is 2,547 x 10-4; B. purpurea is 2,056 x 10-4; M. calabura is 1,843 x 10-4; F. elastica is 1,466 x 10-4; F. benjamina is 0,787 x 10-4; P. indicus is 0,630 x 10-4; and S. mahagoni is 0,499 x 10-4. It can be concluded that C. manghas, F. elastica and S. macrophylla are the most effective in sinking the CO2.
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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