Judul: Pemetaan Perubahan Kerapatan Kanopi Hutan di Hutan Rakyat, Kabupaten Kuningan, Jawa Barat
Abstrak: Emisi karbon dioksida dari sektor kehutanan dapat berasal dari deforestasi dan degradasi hutan. Pengukuran deforestasi hutan lebih mudah dilakukan dari pada degradasi hutan. Kerapatan kanopi hutan (Forest Canopy Density/FCD) dapat menjadi variabel penduga dinamika degradasi hutan. Penelitian ini bertujuan untuk mencari hubungan keeratan antara Forest Canopy Density (FCD) dan parameter tegakan yang diukur di lapangan. Penelitian dilakukan di hutan rakyat Kabupaten Kuningan Jawa Barat. Analisis regresi linier sederhana menunjukan koefisisen determinasi terbesar adalah hubungan antara FCD dengan luas bidang dasar tegakan, sebesar 0.71. Persamaan regresi linier hubungan antara FCD dengan LBDT adalah persamaan ini dapat digunakan untuk memprediksi LBDT dengan data FCD. Nilai ketepatan dari model regresi linier ini sebesar 18.98%. Penelitian ini juga bertujuan untuk mengetahui perubahan kerapatan kanopi di hutan rakyat Kabupaten Kuningan pada tahun 1991-2002 dan tahun 2002-2009.
Keyword: degradasi, FCD, hutan, reforestasi, regresi

Judul: Identifikasi Faktor Penyebab Deforestasi dan Reforestasi Ditinjau dari Aspek Sosial Ekonomi (Kasus di KPH Kuningan, Perum Perhutani Unit III Jawa Barat dan Banten)
Abstrak: Deforestation is conversion of forest into other land use/land cover due to forest exploitation, agricultural expansion, settlement development or other activities. Deforestation resulted in wildlife habitat loss and forest cover decline. Meanwhile reforestation is recovery of forest area resulted from natural regeneration or planted. Deforestation and reforestation merely is not happening in the forest or protected forest conservation, but also occur in production forests. Production forests located in Java Island is managed by Perum Perhutani. According Ichsan (2006), in general, the existence of forest is surrounded by villages with social conditions, economic classified as poor. Ownership of land by the community is very narrow, having low technological capabilities, scarcity of capital as well as limited access to public services. These conditions have made the villagers who are living around the forest are difficult to rise from poverty. Moreover revenue contribution of forest land is not optimal for for the community This study aims to determine level of deforestation and reforestation (of natural forests and forest plantations) in KPH Kuningan and identify its socioeconomic factors associated with deforestation and reforestation. The results of this research may be contributed to formulation of programs to reduce deforestation and increase reforestation of Perum Perhutani. This research was conducted in KPH Kuningan start of the month from June to December 2009. The tools used in this study is a set of computers equipped with software Arc View GIS 3.2, ERDAS Imagine 9.1, SPSS 15.0, and Microsoft Office Excel 2007; Global Positioning System (GPS), voice recorder, digital camera; questionnaire (Forest Village Community Forest Village Community Institution); and stationery. The materials used are Landsat 7 ETM (March 2002) and 5 TM (March 2009) path/row 121/65, RBI Indonesia map scale 1: 25.000, the potential of the village in 2006, statistics of Registration Forest Village Community Institution to KPH Kuningan In May 2009, and Recapitulation Results Vulnerability Identification Zone (Red/Green Area Zone) during July- December 2008 KPH Kuningan. In the period 2002-2009, deforestation occurred in Kuningan District of about 16.305,93 ha from total forest area of 29.618,19 ha. There were two villages taken as sample area namely, Sukarapih village with deforestation of - 4.20 ha/year, and Segong Village with reforestation of about 6.77 ha/year. Based on statistical analysis using logistic regression models, it was found that socioeconomic factors have gave significantly affect to deforestation were revenues, forest disturbance, and knowledge about the existence of state forestry logging. While socioeconomic factors significantly affect reforestation was participation in the reforestation of state forestry activities.
Keyword: 

Judul: Durability of Specific Immunoglobulin (Ig) Y Againts Influenza and Covid-19 in Sunscreen
Abstrak: The benefit of specific immunoglobulin Y (Ig Y) as an active ingredient in personal care products such as sunscreen has not been properly studied. Our study aims to evaluate the reliability of specific IgY against influenza and the COVID-19 virus in a sample sunscreen product. Specific IgY influenza and COVID-19 viruses were inserted in the sample sunscreen at two concentrations of 0.1% and 0.25%. Three treatments were observed: control (C) sunscreen without IgY, treatment 1 (T1) sunscreen with 0.1% IgY, and treatment 2 (T2) sunscreen with 0.25% IgY. Organoleptic observations were carried out to monitor changes in aroma, color, and texture, and sunscreen sampling was done every week for 6 weeks. The durability of IgY was evaluated using an enzyme-linked immunosorbent assay (ELISA) and a neutralization assay. Organoleptic observation from weeks 1 to 6 showed consistency in its aroma, color, and texture. Enzyme-linked immunosorbent assay and neutralization assay (NA) results of the T1 and T2 groups showed negative results except for sample T1 at week 5, which showed a positive result in the Influenza A ELISA. Based on the results, it seems that IgY concentrations of 0.1% or 0.25% were not optimal. However, this negative result might be due to low concentration of the IgY and the presence of beeswax, which inhibits IgY and causes it to dissolve in distilled water, thus preventing it from being detected in the assay.
Keyword: Immunoglobulin Y, Sunscreen, Influenza, COVID-19, Biological Activity