Judul: Comparison of HIV Model with and without Time Delay
Abstrak: Acquired immunodeficiency syndrome (AIDS) is the reduction of the human immune system. AIDS is caused by human immunodeficiency virus (HIV). No medicine has been found for this desease until recently. An AIDS therapy is usually performed with highly active antiretroviral therapy, namely reverse transcriptase inhibitors, protease inhibitors and combination of both. Various models have been developed to explain the immune system of patients with AIDS, namely the HIV, response and the time delay model. This paper discusses the comparison between the dynamics of the HIV virus, the dynamic response of protease inhibitors and dynamics of time delay. The dynamics model of HIV is influenced by the level of white blood cells produced and the rate of its death. Dynamics of protease inhibitors on the response and the time delay model is influenced by the death rate of infected white blood cells and the failure rate of treatment.
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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: Strategi Pengembangan Usaha Emping Melinjo Pada Koperasi Serba U saha Sari Sono, Kabupaten Lebak, Banten
Abstrak: Lapangan usaha pertanian di Provinsi Banten merupakan sektor yang masih dominan dalam menyerap tenaga kerja dibawah sektor perdagangan. Porsi penyerapan tenaga kerja di bidang pertanian pada Februari 2008 sebesar 22,72 persen, sedangkan Februari 2009 sebesar 20,47 persen, agar sektor pertanian berkembang, maka salah satu bidang yang perlu dikembangkan adalah agroindustri. Bidang agroindustri yang masih perlu dikembangkan maupun didorong pertumbuhannya adalah industri pengolahan hasil pertanian tanaman pangan dan hortikultura. Komoditas pertanian tanaman pangan dan hortikultura di Indonesia yang perlu didukung oleh sektor agroindustri adalah padi, jagung, ubikayu, kedelai, dan melinjo. Provinsi Banten memiliki 1.300 usaha kecil menengah yang bergerak dalam pembuatan emping melinjo. Tenaga kerja yang terserap cukup banyak sekitar 2.000 orang dengan volume produksi emping melinjo yakni rata-rata 5,2 ton per hari atau 156 ton per bulan. Daerah Kabupaten Lebak sendiri memiliki 281 industri kecil pembuatan emping melinjo yang tersebar di daerah Warunggunung, Cikulur, dan Gunung Kencana. Salah satu usaha kecil menengah pembuatan emping melinjo di daerah Warunggunung adalah Koperasi Serba Usaha (KSU) Sari Sono. Kebutuhan ekspor emping sekitar 2.000 ton per tahun, sedangkan pihak ekportir hanya sanggup menyediakan 1.400 ton saja. Tingkat produksi KSU Sari Sono diperkirakan maksimal mencapai dua ton per bulan, tingkat produksi ini masih dibawah rata-rata produksi emping melinjo per bulan di Banten yaitu sebesar lima ton per bulan. Potensi usaha emping melinjo didukung dengan adanya peningkatan konsumsi melinjo (termasuk emping) per kapita per bulan mengalami peningkatan yaitu dari 0,23 kg pada tahun 2002 menjadi 0,24 kg pada tahun 2005 atau meningkat sebesar 2,5 persen ...
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