Judul: Nilai Ekonomi Lahan dari Berbagai Macam Penggunaan Lahan (Studi Kasus Desa Karyasari, Kecamatan Leuwiliang, Kabupaten Bogor).
Abstrak: Lahan dinilai dari aspek produktifitas lahan, biaya pemanfaatan, pendapatan, keuntungan dan aspek ekonomi lainnya. Nilai ekonomi lahan berpengaruh terhadap konversi lahan yang dapat menjadi acuan dalam membangun suatu lahan. Penelitian ini bertujuan untuk menentukan nilai ekonomi lahan tertinggi dalam satu tahun berdasarkan pola penggunaan lahan produk hutan rakyat, produk pertanian dan lahan tidak produktif di Desa Karyasari, dan menentukan nilai ekonomi lahan tertinggi dalam satu daur dan satu tahun berdasarkan jenis varietas di Desa Karyasari. Nilai ekonomi lahan tertinggi dalam satu tahun dimiliki oleh lahan pertanian dengan pola penggunaan lahan tumpang sari sebesar Rp 2.786,48/m²/tahun yang terdiri dari varietas jagung dan cabai merah. Nilai ekonomi lahan tertinggi dalam satu daur dimiliki oleh varietas sengon sebesar Rp 7.937,5/m²/daur, sedangkan nilai ekonomi lahan tertinggi dalam satu tahun dimiliki oleh varietas cabai merah sebesar Rp 3.533,33/m2/tahun.
Keyword: lahan, nilai ekonomi lahan, penggunaan lahan

Judul: Analisis Dampak Ekonomi dari Alih Fungsi Lahan Pertanian ke Non Pertanian Terhadap Ketahanan Pangan di Kabupaten Bogor.
Abstrak: Population growth in Bogor Regency increasing year by year. Along with population growth, there is also increasing food needs that related to agricultural sector. Currently, changes to the transformation of the economic development towards the direction of industrial development and manufacturing. In addition, increasing population growth requires residential development. This case, indicated agricultural land conversion. The aims of the study were to know the rate of agricultural land conversion in Bogor Regency, to find out the factors which affect, and to analyze the economic effect and an appropriate policy in the control of agricultural land conversion. Agricultural land conversion in Bogor Regency has been fluctuated year by year. The average of land conversion in Bogor Regency was 0,01 percent per year or 7,1 hectar per year. On this study showed that the increasing density of society and the paddy productivity were affected to the agricultural land conversion. Meanwhile, the agricultural land conversion will affect change of the farmer‟s total income before and after land conversion amount of Rp 52.176 in month. The average income before the conversion amount of Rp 1.931.157 and the average income amount of Rp 2.878,96. Beside the farmer‟s total income, the agricultural land conversion also caused the reducing of paddy production. The average loss of paddy production per hectare converted land was 2.878,96 tons per year, while the average loss production value was Rp 7.771.656.534,60 in paddy forms and Rp 8.518.512.570,00 in rice forms. The estimation result of food security in Bogor Regency showed that rice production has not adequated the needs of rice in 2002- 2011.
Keyword: Effect, Bogor Regency, Agricultural land conversion, Bogor Agricultural University (IPB)

Judul: Differential Leukocytes in Mice (Mus muscullus) after Amyloid Beta Aβ40 and Aβ42 Immunization as a Marker of Alzheimer’s Disease.
Abstrak: Alzheimer merupakan penyakit neurodegeneratif yang bersifat irreversibel dan progresif yang terkait dengan perubahan sel-sel saraf, sehingga menyebabkan kematian sel otak dan terjadinya demensia. Pengamatan terhadap diferensial leukosit dapat membantu dalam mendiagnosa penyakit ini dengan tepat. Penelitian ini bertujuan mengetahui gambaran diferensial leukosit pada mencit terhadap respon imunisasi amyloid beta Aβ40 dan Aβ42. Penelitian ini menggunakan 22 ekor mencit (Mus muscullus) Balb/c jantan dan betina dengan berat badan 20-35 gr. Mencit dibagi menjadi tiga kelompok yaitu, kelompok mencit kontrol, kelompok mencit vaksinasi antigen amyloid Aβ40 dan kelompok mencit vaksinasi antigen amyloid beta Aβ42. Sampel darah dimabil melalui vena coccygea sebanyak 0,5 ml setiap mencit. Sampel darah diambil pada hari ke-0, 14 dan 24 setelah diimunisasi. Hasil menunjukkan kelompok mencit yang diimunisasi amyloid beta 40 (Aβ40) dan amyloid beta 42 (Aβ42) menyebabkan peningkatan jumlah limfosit dan neutrofil yang signifikan, sedangkan kelompok mencit kontrol tidak menunjukkan perubahan leukosit yang signifikan. Berdasarkan hasil pengamatan dapat disimpulkan bahwa pemberian imunisasi antigen amyloid beta Aβ40 dan Aβ42 pada mencit tidak memengaruhi jumlah basofil, eosinofil, neutrofil batang serta monosit., Alzheimer's is an irreversible and progressive neurodegenerative disease associated with changes in nerve cells, leading to brain cell death and dementia. Observation of differential leukocytes can help in diagnosing the disease precisely. This study aims to find out the differential picture of leukocytes in mice against amyloid beta Aβ40 and Aβ42 immunization responses. This study used 22 mice (Mus muscullus) Balb / c male and female with a weight of 20-35 grams. Mice were divided into three groups, namely, the control mice group, the Aβ40 amyloid antigen vaccination mice group and the Aβ42 amyloid beta antigen vaccination mice group. Blood samples are taken through the coccygea vein as much as 0.5 ml per mice. Blood samples are taken on days 0, 14 and 24 after immunization. Results showed the mice group immunized amyloid beta 40 (Aβ40) and amyloid beta 42 (Aβ42) caused a significant increase in lymphocyte and neutrophil counts, while the control mice group showed no significant leukocyte changes. Based on the observations, it can be concluded that immunization of amyloid beta Aβ40 and Aβ42 antigens on mice does not affect the number of basophils, eosinophils, bar neutrophils and monocytes.
Keyword: Alzheimer, Diferensial leukosit, Amyloid beta, Mencit, Alzheimer's, differential leukocytes, amyloid beta, mice