Judul: Analisis populasi penyu hijau (Chelonia Myas, Lennaeus 1758) di pantai Pangumbahan, Kabupaten Sukabumi
Abstrak: Penelitian ini dilakukan di Pangumbahan, Kabupaten Sukabumi, selama 46 hari dari bulan Mei sampai dengan Juli 2006. Tujuan penelitian ini adalah untuk mendeskripsikan sebaran populasi penyu hijau berdasarkan ukuran panjang karapas lurusnya (SCL). Penyu Hijau yang diamati memiliki ciri warna karapas cokIat karat kemerah-merahan dengan coreng kuning gading. Bagian kepala kemerahmerahan dengan tepi hitam. Sisi kepala yang lain berwana gelap dengan garis pertemuan antar sisik (sutures) berwarna kuning. Penyu muda berwarna hijau pudar sampai coklat gelap bercoreng kuning dengan bagian sirip berwarna gelap. Cjri-ciri tersebut merupakan ciri dari jenis Chelonia mydas dan lebih mendekati pada subspecies C. mydas japonica yang biasa terdapat di wilayah Pasifk Barat dan Samudera Hindia.
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Judul: Studi karakteristik biofisik habitat peneluran penyu hijau (Chelonia mydas) di Pangumbahan Sukabumi, Jawa Barat
Abstrak: Penyu hijau adalah jenis penyu yang memiliki nilai ekonomis tinggi. Melihat populasinya yang terus menurun, muncul gagasan mengenai upaya-upaya yang berkaitan dengan pelestarian penyu hijau. Namun sebelumnya perlu dilakukan pada penelitian, salah satunya mengenai karakteristik biofisik pantai peneluran. Penelitian ini bertujuan untuk menggambarkan parameter biofisik habitat peneluran penyu hijau di pantai Pangumbahan pada musim timur dan barat
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Judul: Effects of Alcohol Consumption on Spatial Memory Performance and Neuron Complexity
Abstrak: Alcoholic beverages have always been a common drink all around the globe. The ethanol that is contained inside these alcoholic beverages have been known to have various negative side effects to the brain if consumed excessively. Other articles have claimed a certain moderate amount of alcohol consumption could have beneficial effects on the brain, but no exact concentration limit of consumption has been elaborated to cause damage in the hippocampal area. The objective of this research is examining the effects of alcohol towards neuron complexity and spatial memory performance. Four groups of mice were used as test subjects and were given the solution pre-orally. The first group is the control group which is given water, the second group was given 5% alcohol, the third group was given 15% alcohol, and the fourth group was given commercially sold alcoholic beverage. The mice were given said solutions in the span of 30 days. Spatial memory performance is observed by how a mice scores inside a Y-maze in the span of 5 minutes after 30 days of treatment. Neuron complexity is determined by the number of intersections of dendrites and the maximum angle of neurons inside the Dentate Gyrus (DG) and Cornu Ammonis (CA) region of the hippocampus which is observed by Golgi-Cox staining, photographed with optilab and then analyzed using the ImageJ application. alcohol consumption does not have any significant effect on spatial memory performance nor neuron complexity in the hippocampal area. These findings are not significantly different than the control group, possibly because the treatment is not chronic enough to trigger a significant physiological change.
Keyword: Ethanol, spatial memory, complexity, hippocampus