Judul: The Dynamic of HIV Virus Infection as a Result of Protease Inhibitor Therapy.
Abstrak: Acquired immunodeficiency syndrome (AIDS) is defined as symptoms of deterioration human immune system caused by human immunodeficiency virus (HIV). The virus damages the leucocytes; therefore, once a person infected by the HIV, his/her immune system will be paralyzed and eventually will not be able to survive from any disease. HIV is transmitted in many ways, such as having unsafe sex, using unsterilized syringe, blood transfusion, and many more. So far, there has not been discovered yet a way or a medicine that can totally cure this disease. However, reverse transcriptase inhibitor therapy, protease inhibitor, or combination of those two can decline the growth of virus inside the body of the infected person. Therefore, the immune system will be enhanced back to normal phase. In this paper, will analyze the effect of protease inhibitor therapy on the dynamics of virus inside the blood with different value of effectiveness. There are two mathematical models of protease inhibitor therapy to consider, i.e. perfect and imperfect protease inhibitor. The perfect protease inhibitor therapy hinders the virus to grow well and not to infect healthy leucocytes. On the other hand, the imperfect one cannot completely detained the virus growth.
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Judul: Dinamika Infeksi Virus HIV dengan Terapi Reserve Transciptase Inhibitor CRT Inhibitor)
Abstrak: Acquired immunodeficiency syndrom (AIDS) is a disease in the human system caused by the human immunodeficiency virus (HIV). In general, HIV virus is transmitted through direct contact with a body fluid containing HIV virus, such as blood transfusion or free sex. The major target of HIV virus infection is white blood cells. Although some therapies for AIDS can reduce the spreading of the disease, there is currently no vaccine or cure. The most effective therapy is antiretroviral therapy. Antiretoviral therapy consist of three therapies, i. e. reserve transcriptase inhibitor, protease inhibitor and a combination of both therapies. The objective of this paper is to determine the influence of reserve transcriptase inhibitor therapy to the dynamics of HI V virus infection in blood. This dynamics can be formulated in some mathematical models, i. e. the model of perfect RT inhibitor therapy and the model of imperfect RT inhibitor therapy. Furthermore, the dynamics of the virus infection can be shown in a basic reproduction number. If this number is less than one, then the virus population will be vanished. On the other hand, if it is larger than one, then the virus population will remain in blood.
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Judul: Keanekaragaman jenis rumput laut di Pantai Jayanti kabupaten Cianjur Jawa Barat
Abstrak: Penelitian keanekaragaman jenis rumput laut di pantai Jayanti, Kabupaten Cianjur Jawa Barat dimulai dengan pengambilan spesimen pada bulan Agustus 1999 dan Januari 2000, dilanjutkan dengan pembuatan spesimen herbarium basah dan kering serta identifikasi. Dari hasil identifikasi didapatkan 51 jenis rumput laut meliputi 15 jenis Chlorophyta, 10 jenis Phaeophyta dan 26 jenis Rhodophyta Chlorophyta terdiri dari 8 marga yaitu: Anadyomene, Boergesenia, Boodlea, Caulerpa, Codium, Enteromorpha, Halimeda dan Ulva Phaeophyta meliputi 3 marga yaitu: Sargassum, Turbinaria dan Padina. Sedangkan Rhodophyta terdiri dari 16 marga yaitu: Acanthophora, Amansia, Amphiroa, Botryocladia, Chelosporum, Galaxaura, Gelidiella, Gigartina, Gracilaria, Hypnea, Jania, Laurencia, Merysthothecha, Peyssonnelia, Rhodymenia dan Spesies 1. Satu jenis Phaeophyta (Sargassum sp), empat jenis Rhodophyta (Botryocladia sp. Gigartina sp, Gracilaria sp.1 dan Gracilaria sp 2) belum teridentifikasi nama jenisnya, satu spesimen Rhodophyta (spesies 1) bahkan belum diketahui nama jenis maupun marganya. Hasil ini merupakan catatan baru dalam keanekaragaman ganggang di Indonesia terutama di pantai Jayanti.
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