Judul: Model Hasil Tegakan Jati Plus Perhutani Studi Kasus di KPH Madiun dan KPH Saradan
Abstrak: Jati Plus Perhutani (JPP) merupakan jenis jati unggulan yang diharapkan menggantikan jati konvensional yang daurnya relatif sangat panjang. Penyusunan model hasil tegakan JPP ditujukan untuk mengatur hasil tegakan JPP sesuai dengan kondisi tempat tumbuhnya. Model hasil tegakan JPP disusun dari 200 plot contoh yang tersebar di KPH Madiun dan KPH Saradan. Model hasil tegakan terbaik adalah Model Vanclay (1994) untuk menduga pertumbuhan diameter, bidang dasar, volume dan biomassa tegakan, sedangkan Model Clutter et al. (1983) untuk menduga pertumbuhan tinggi dan peninggi tegakan. Model di atas dianalisis dengan pendekatan regresi non-linear. Model Hasil tegakan JPP dapat digunakan untuk menentukan pertumbuhan tegakan JPP pada berbagai kualitas tempat tumbuh dan umur tertentu. Model Hasil tegakan JPP juga dapat digunakan untuk keperluan penetapan daur dan pengaturan hasil tegakan.
Keyword: non-linear regression, yield models, yield tables

Judul: Yield Models of Perhutani’s Teak Plus Plantation in KPH Balapulang and KPH Pemalang Regional Division of Central Java.
Abstrak: Jati Plus Perhutani (JPP) is a superior variety of teak that has been widely planted and spread in the Perum Perhutani area. The superior type of JPP is expected to replace the conventional teak, which has a very long rotation. This research aims to develop the yield models, and the yield table of JPP stands according to the quality class in which it was grown. The yield model was built based on sample plots that were spreadly ditributed, representing all growing conditions in KPH Balapulang and KPH Pemalang Perum Perhutani Regional Division of Central Java. Selection of the best yield model using non linear regression analysis. The best yield model for estimating growth in diameter, total height, over height, basal area, volume and stand biomass is the Vanclay model. This stand yield model is useful for determining the rotation and yield regulation and as a consideration in silvicultural actions so that the production of Perhutani’s Teak Plus wood can be optimal., Jati Plus Perhutani (JPP) merupakan varietas jati unggul yang sudah ditanam secara luas dan tersebar di wilayah Perum Perhutani. Jenis unggulan JPP diharapkan menggantikan jati konvensional yang memiliki daur sangat panjang. Penelitian ini bertujuan menyusun model hasil dan tabel hasil tegakan JPP sesuai dengan kelas kualitas tempat tumbuhnya. Model hasil dibangun pada plot contoh yang tersebar dan mewakili kondisi tempat tumbuh di KPH Balapulang dan KPH Pemalang Perum Perhutani Divisi Regional Jawa Tengah. Pemilihan model hasil terbaik menggunakan analisis regresi non linear. Model hasil terbaik dalam menduga pertumbuhan diameter, tinggi, peninggi, luas bidang dasar, volume dan biomassa tegakan adalah model Vanclay. Model hasil tegakan ini bermanfaat untuk penetapan daur dan pengaturan hasil serta sebagai pertimbangan dalam tindakan silvikultur agar produksi kayu Jati Plus Perhutani dapat optimal.
Keyword: Perhutani’s Teak Plus, rotation, stand yield model, stand yield tabel

Judul: Light Microscope Study of ConnectiveTissue in The Spleen of Common Rousette Bat (Rousettus amplexicaudatus)
Abstrak: The spleen is the largest lymphoid organ. As a secondary lymphoid organ, in addition to its immune function, the spleen also has functions as blood filtration, storage, and hematopoiesis. The spleen has different morphologies between species that support different physiological functions, one of which is the difference in the structure of the capsule and trabeculae. Capsule and trabeculae of the spleen generally consist of connective tissue and smooth muscle. The thickness of smooth muscle composed together with connective tissue in the capsule and trabecula determines the function of the spleen that is divided spleen into three storage, defense, and intermediate. Bats are the reservoir of various zoonotic diseases. Bats are thought to have unique immune systems compared to other mammals but the characteristics of its immune organs such as the spleen have never been studied before. This study was conducted to examine the characteristics of capsulae and trabecula of the Common Rousette (Rousettus amplexicaudatus).
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