Judul: Analisis Daya Saing dan Faktor-faktor yang Memengaruhi Ekspor Spare Parts Indonesia ke Kawasan Amerika Latin
Abstrak: Spare parts industry is one of growing value chain industries, it also has high value, and potency in Indonesia. Latin America region is one of nontraditional export market that has potency for Indonesia’s diversification of export destinations especially for spare parts products. This study aims to analyze the competitiveness and the factors affect Indonesia’s spare parts export to Latin American region from 2009 to 2013. The methods used in this paper are the Constant Market Share Analysis (CMSA) and gravity model with panel data methods. The CMSA results indicate that the average of competitiveness Indonesia’s spare parts export to Latin American period 2009 to 2013 influenced by the competitiveness effect. The gravity model results indicate factors that have significant impact to the value of Indonesia’s spare parts export are real GDP interaction of exporters and importers country, exchange rate importers country to Dollar, and export prices. Meanwhile, economic distance and import tariff have no significant impact on the value of Indonesia’s spare parts export.
Keyword: Bogor Agricultural University, spare parts, panel data, gravity model, competitiveness, CMSA

Judul: Determinants of Indonesian Tire Exports to the Latin American Region
Abstrak: Kawasan Amerika Latin merupakan kawasan yang memiliki peluang yang besar pada pasar komoditas ban, hal ini terbukti dari meningkatkan permintaan ban dari negara-negara kawasan Amerika Latin. Walaupun demikian, Indonesia hanya berhasil menempati posisi keempat sebagai eksportir ban terbesar di kawasan Amerika Latin setelah China, Thailand, dan India padahal Indonesia memiliki sumber daya yang memadai untuk komoditas ini. Penelitian ini berfokus ekspor komoditas ban (HS 4011) di kawasan Amerika Latin selama periode 2008-2021. Perluasan pasar ekspor tidak hanya bertujuan untuk menjadikan Indonesia sebagai eksportir utama tetapi juga bertujuan untuk menghindari ketergantungan pada pasar negara tujuan utama pada saat terjadi guncangan ekonomi global. Daya saing ekspor ban Indonesia ke kawasan Amerika Latin dianalisis dengan menggunakan RCA, EPD, dan gabungannya melalui x-model, serta analisis gravity model untuk melihat faktor-faktor yang memengaruhi volume ekspor ban Indonesia ke kawasan Amerika Latin. Hasil analisis menunjukkan daya saing komoditas ban Indonesia secara umum memiliki daya saing kuat serta memiliki sifat dinamis yang mencerminkan fleksibilitas dan adaptabilitas komoditas ban dalam menghadapi lingkungan pasar yang berubah-ubah pada pasar kawasan Amerika Latin. Faktor- faktor yang memengaruhi permintaan ekspor adalah jarak ekonomi, pendapatan perkapita negara tujuan, dan indeks harga konsumen., The Latin American region is a region that has great opportunities in the tire commodity market, this is proven by the increasing demand for tires from countries in the Latin American region. However, Indonesia only managed to occupy the fourth position as the largest tire exporter in the Latin American region after China, Thailand and India even though Indonesia has adequate resources for this commodity. This research focuses on tire commodity exports (HS 4011) in the Latin American region during the 2008-2021 period. Expanding the export market not only aims to make Indonesia a major exporter but also aims to avoid dependence on the market of the main destination country when global economic shocks occur. The competitiveness of Indonesian tire exports to the Latin American region is analyzed using RCA, EPD, and their combination through x-model, as well as gravity model analysis to see the factors that affect the volume of Indonesian tire exports to the Latin American region. The results of the analysis show that the competitiveness of Indonesian tire commodities in general has strong competitiveness and has a dynamic nature that reflects the flexibility and adaptability of tire commodities in facing changing market environments in the Latin American market. Factors that influence export demand are economic distance, per capita income of the destination country, and the consumer price index.
Keyword: Amerika Latin, Ban, Gravity Model

Judul: Hybrid solar cells of ZnO nanoparticles/chlorophyll was modified metal ions (Zn2+ and Cu2+ )
Abstrak: Zinc Oxide (ZnO) is a n-type semiconductor with a wide the energy band (Band Gap) is 3.37 eV at room temperature and 3.34 eV at low temperature with a large exiton binding energy is 60 meV. ZnO has been synthesized by hydrothermal method, resulting in a decrease in particle size over the duration of the hydrothermal changes. Crystallographic structure of ZnO were characterized using XRD, has shown the characteristic pattern of a hexagonal wurtzite structure, the crystallite size increases to changes in particle size. Changes in particle size has also led to a change in the absorption peak of ZnO as has been demonstrated posted under test using the optical properties of UV-Vis spectrophotometer. Changes of this uptake has also led to changes in the energy band gap, which increases its band gap energy of the particle size. In electronic applications, especially in solar cells. Chlorophyll is considered less effective, because of their very nature are easily degraded as a result of several reactions which are acid, lighting and temperature. The results of the stability test using a halogen lamp 34 W/m2 for 5 hours, that the substitution of chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form more stable than natural chlorophyll. The characterization of the optical properties, the combination of ZnO / chlorophyll in the form of hybrid films has led to a shift in the absorption region of ZnO becomes more widely from the UV to Visible. ZnO/chlorophyll has absorption range of 350-515 nm, ZnO / Zn-feofitin 332-401 nm and 332-632 nm for Cu-feofitin. The combination of ZnO/chlorophyll and CuSCN as a solid electrolite in hybrid solar cell, a modified chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form a more stable I-V curve. It is characterized by its fill factor value greater than natural chlorophyll. Nevertheless, solar cells with natural chlorophyll has been able to produce higher efficiency values of chlorophyll were substituted.
Keyword: Hydrothermal, ZnO/Chlorophyll modified, Hybrid Solar Cell