Judul: Analysis of the influence of the tourism sector on GRDP: Case study of West Java province for the period 2016 - 2022
Abstrak: Pertumbuhan ekonomi merupakan indikator perekonomian yang menjadi salah satu fokus utama dari negara-negara di seluruh dunia. PDRB seringkali menjadi indikator untuk melihat gejala pertumbuhan ekonomi suatu daerah karena mencerminkan produksi barang dan jasa pada suatu daerah tertentu. Sektor pariwisata adalah salah satu jasa yang dapat memberi dampak baik terhadap pertumbuhan ekonomi di Provinsi Jawa Barat. Penelitian ini bertujuan untuk menganalisis pengaruh sektor pariwisata terhadap PDRB di Provinsi Jawa Barat selama periode 2016-2022. Metode yang digunakan yaitu analisis deskriptif dan regresi data panel menggunakan Random Effect Model. Hasil analisis menunjukkan bahwa Jumlah Kunjungan Wisatawan, Jumlah Rumah Makan/Restoran, Pendapatan Asli Daerah, Jumlah Hotel, Jumlah Daya Tarik Wisata, dan Upah Minimum secara bersama-sama memiliki pengaruh signifikan terhadap PDRB di Provinsi Jawa Barat., Economic growth is an economic indicator that is one of the main focuses of countries around the world. GRDP is often an indicator to see the symptoms of economic growth in a region because it reflects the production of goods and services in a particular area. The tourism sector is one of the services that can have a good impact on economic growth in West Java Province. This study aims to analyze the effect of the tourism sector on GRDP in West Java Province during the period 2016- 2022. The method used is descriptive analysis and panel data regression using the Random Effect Model. The results of the analysis show that the number of tourist visits, the number of restaurants, local revenue, the number of hotels, the number of tourist attractions, and the minimum wage together have a significant influence on GRDP in West Java Province.
Keyword: data panel, PDRB, Jawa Barat, GRDP, West Java, sektor pariwisata, Panel Regression Analysis, Tourism sector

Judul: The Influence of Tourism Sector On  Employment Absorption In West Java During 2015 - 2021
Abstrak: Besarnya potensi sektor pariwisata di Indonesia dapat menyerap banyak tenaga kerja. Sektor pariwisata Provinsi Jawa Barat menjadi salah satu yang terbaik di Indonesia. Namun, berkembangnya sektor pariwisata tidak diikuti oleh penurunan tingkat pengangguran terbuka. Penelitian ini bertujuan menganalisis pengaruh sektor pariwisata terhadap penyerapan tenaga kerja di Provinsi Jawa Barat periode 2015 – 2021. Metode analisis yang digunakan adalah analisis deskriptif dan data panel. Berdasarkan analisis regresi data panel, variabel jumlah kunjungan wisatawan, jumlah hotel, jumlah restoran, jumlah obyek daya tarik wisata dan variabel pendapatan asli daerah memiliki pengaruh positif dan signifikan terhadap penyerapan tenaga kerja di Provinsi Jawa Barat. Variabel pendapatan asli daerah merupakan variabel pariwisata yang memiliki pengaruh paling tinggi terhadap penyerapan tenaga kerja. Pemerintah dapat mengoptimalkan sebaik mungkin peningkatan Pendapatan asli daerah (PAD) sebagai penyedia pembangunan akomodasi lain dengan kualitas yang baik, sehingga memaksimalkan potensi wisata dan lebih banyak menyerap tenaga kerja., The significant potential of the tourism sector in Indonesia can absorb a large number of employments. The tourism sector in West Java province is one of the best in Indonesia. However, the growth of the tourism sector has not been accompanied by the decrease in unemployment rate. This study aims to analyze the influence of the tourism sector on employment absorption in West Java during the period of 2015 - 2021. The analytical methods used are descriptive analysis and panel data analysis. Based on the regression analysis of panel data, the number of tourist visits, the number of hotels, the number of restaurants, the number of tourist attractions, and local revenue variable have a positive and significant influence on employment absorption in West Java. The local revenue variable is a tourism-related variable that has the highest impact on employment absorption. The government can optimize the increase in local revenue as a means of developing quality accommodation and maximizing the tourism potential, thus creating more employment opportunities.
Keyword: employment absorption, panel data regression, tourism sector

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