Judul: Pengetahuan masyarakat tentang konservasi sumberdaya hutan: studi kasus pada masyarakat Desa Cipeuteuy, Kecamatan Kabandungan, Kawasan Taman Nasional Gunung Halimun Salak, Sukabumi Jawa Barat
Abstrak: Halimun Salak Mountain National Park in accordance with the Decree of Ministry of Forestry No. 282/Kpts-II/1992 covering area of 40.000 ha. TNGH area was enlarged on 2003 become Halimun Salak Mountain National Park (TNGHS) according to the Decree of Ministry of Forestry No. 175/Kpts-II/2003. The extension of TNGHS area changed the status of production forest become one entity of Halimun Salak Mountain National Park area with total area as 113.357 ha. The focus of this research is community knowledge of conservation that realized in prohibition contained in the community and the influence to the utilization activities of community such as agricultural cultivation, tree felling, firewood collecting, and grass taking. Those community activities are conducted in order to meet the economic needs of community. In the other hand, the area status as a national park restricts the community access in conducting those activities because it’s considered can damage the forest. Therefore, it needs to review more deeply the community knowledge about forest resources conservation. This research was conducted by using case study method. Respondent consist of community leader and community members living in five hamlets of Cipeuteuy village that directly or indirectly involve in managing the National Park. It was conducted in five hamlets on one village. The data from field observation and deep interview with communities was classified and analyzed. The result is shown as narrative text and figure, and explained descriptively. This research result shown that Cipeuteuy communities have rules on interacting with forest including prohibitions. The rules arose as a result of learning process on community and socialization of regulation by National Park thus the regulation was gradually adopted in the rules of Cipeuteuy communities. In addition, Cipeuteuy communities’ still conduct utilization activity in National Park area such as agricultural cultivation, logging, collecting fuel wood and collecting the grass for animals feed. Generally, the communities try to avoid utilization that has been prohibited by National Park according to existing regulation or statue, but because of they do not have substitute, the community still continue the activities while trying to minimize the forest damage.
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Judul: Kajian Pemanfaatan Sumberdaya Hutan di Taman Nasional Gunung Halimun Salak oleh Masyarakat Sekitar
Abstrak: Forest product utilization by communities in Taman Nasional Gunung Halimun Salak (TNGHS) faced the fact that TNGHS is one of the Conservation areas that are restricted by regulation. The utilization activities allowed only on certain zones.Meanwhile, local community has been utilized forest resources since long time ago, even before TNGHS established yet not known whether the utilization has been following the rules of TNGHS or not.Therefore, it is necessary to know the characteristics of forest utilizations by local community. Once known the characteristic of utilization by the public, then we could be formulated strategies for the utilization of forest products in a sustainable way.The utilization of forest products by the community around TNGHS especially in Hanjawar village, Majasarivillage and Kutajayavillage used used for daily needssuch as food needs, boards, medicines, household equipment, firewood and fodder. There are 103 species of forest products that are utilized. Utilization only done by local communities.The location of the utilization gone into the 5 zone namely special zone, jungle zone, rehabilitation zone, utilization zone and traditionalzone.
Keyword: utilization, local community, Gunung Halimun Salak National Park, forest product

Judul: Invers Drazin dari Matriks Toeplitz Singular
Abstrak: Matriks Toeplitz adalah matriks yang setiap unsur pada diagonal utama bernilai sama dan setiap unsur pada subdiagonal yang bersesuaian dengan diagonal utama juga bernilai sama. Matriks singular adalah matriks yang tidak bisa ditentukan inversnya. Akan tetapi, dapat diupayakan untuk ditentukan inversnya menggunakan invers matriks yang diperumum. Invers Drazin merupakan salah satu jenis invers matriks yang diperumum. Pada karya ilmiah ini ditentukan invers Drazin dari matriks Toeplitz singular dengan menggunakan metode Leverrier Faddeev. Kemudian, ditentukan invers Drazin dari matriks Toeplitz singular yang direpresentasikan sebagai penjumlahan segitiga bawah dan segitiga atas matriks Toeplitz berdasar pada teorema Gohberg dan Semencul., Toeplitz matrix is a matrix in with element on the main diagonal has the same value and on the subdiagonal corresponding to the main diagonal also has the same value. Singular matrix is a matrix that has no inverse. However, it can be attempted to determine the inverse using a generalized inverse matrix. Inverse Drazin is a type of generalized matrix inverse. This paper discussed the inverse Drazin for a singular Toeplitz matrix using the Leverrier Faddeev method. Then, the Drazin inverse of the singular Toeplitz matrix which is represented as a sum of products of lower and upper triangular Toeplitz matrix based on Gohberg and Semencul theorem.
Keyword: inverse Drazine, singular Toeplitz matrix