Judul: Analysis Of the effect of Marketing Activity, Firm Age, dan Firm Size on the profitability of the consumer goods industry company
Abstrak: Investasi perusahaan bagi aktivitas pemasaran hingga kini tercatat sebagai beban (expense) dalam laporan keuangan. Sistem akuntansi tradisional yang belum dapat mengukur pengembalian atas investasi dalam aktivitas pemasaran semakin memperkuat persepsi shareholder bahwa investasi dalam pemasaran hanya menjadi pengeluaran perusahaan yang dapat mengurangi profitabilitas perusahaan dan return bagi investor. Aktivitas pemasaran dalam penelitian ini terbatas pada aktivitas pemasaran yang tercatat dalam laporan keuangan perusahaan dalam bentuk beban pemasaran/ marketing expense. Dana investasi perusahaan bagi aktivitas pemasaran sangat terkait erat dengan firm age/umur perusahaan dan firm size/ukuran perusahaan. Tujuan penelitian ini ialah untuk manganalisa pengaruh dari aktivitas pemasaran,umur perusahaaan, dan ukuran perusahaan terhadap profitabilitas perusahaan. Sebanyak 30 perusahaan sektor barang konsumsi yang terdaftar di Bursa Efek Indonesia dianalisa untuk meraih tujuan penelitian. Data penelitian dikumpulkan selama tahun 2015-2019, sehingga diperoleh total data sebanyak 150 laporan tahunan. Kebaruan penelitian ini terletak pada objek yang diamati. Menggunakan analisis regresi berganda dengan menggunakan software SPSS 24, maka hasil penelitian menunjukan bahwa Firm age dan marketing activity berpengaruh positif dan signifikan terhadap profitabilitas yang diwakili oleh Return On Assets (ROA) ,sementara firm size tidak berpengaruh terhadap profitabilitas. Kata kunci: aktivitas pemasaran, umur perusahaan,ukuran perusahaan,profitabilitas,sektor barang konsumsi, The company’s investment for marketing activities is recorded as an expense in the financial report until now. The conventional accounting system that has not been able to measure the return of investment in marketing activities reinforce the perception of shareholder that marketing activities is company expense that can decrease the company profits or profitability and return for investor. Marketing activities in this study is limited to marketing activities that was recorded on financial report as marketing expense. Firm invesment for marketing activity is related to the firm age and firm size. The aims of the research is to analyze the impact of firm age, marketing activities, and firm size to firm profitability. To reach these objective, 30 consumer goods companies who listed on Indonesia Stock Exchange was analyzed. Data were collected from 2015 until 2019 with total 150 annual reports. The novelty of this research is in the object of the research. Using multiple regression analysis by SPSS 24, the study found that firm age and marketing activity has positive and significant impact on profitability that represented by Return On Asset, meanwhile firm size has no significant impact on profitability. Keywords: firm age, firm size, consumer goods industry,marketing activity, profitability
Keyword: firm age, firm size, consumer goods industry, marketing activity, profitability

Judul: Pengaruh Struktur Modal, Likuiditas, Modal Kerja, Solvabilitas, Aktivitas dan Pertumbuhan Perusahaan terhadap Profitabilitas Perusahaan.
Abstrak: Profitabilitas mengukur kemampuan perusahaan dalam memperoleh laba. Tingkat profitabilitas yang baik mencerminkan adanya prospek dan potensi perusahaan untuk mempertahankan eksistensinya di dunia bisnis. Tingkat profitabilitas diyakini dipengaruhi beberapa hal diantaranya, struktur modal, likuiditas, modal kerja, solvabilitas, aktivitas dan pertumbuhan perusahaan. Tujuan penelitian ini adalah untuk mengidentifikasi gambaran umum perusahaan sektor industri barang konsumsi di BEI, mengidentifikasi pengaruh struktur modal, likuiditas, modal kerja, solvabilitas, aktivitas dan pertumbuhan perusahaan secara simultan dan secara parsial terhadap profitabilitas pada perusahaan sektor barang konsumsi di BEI. Penelitian ini menggunakan metode pengambilan data sekunder yang diperoleh dari halaman resmi Bursa Efek Indonesia dan halaman resmi perusahaan yang menjadi objek penelitian dengan menggunakan rasio keuangan antara lain, DER, CR, WCT, DAR, TATO, dan rasio pertumbuhan penjualan terhadap ROE. Metode yang digunakan dalam penelitian ini yaitu analisis regresi linear berganda dan uji hipotesis. Hasil dari penelitian ini menunjukkan bahwa modal kerja, solvabilitas dan aktivitas berpengaruh signifikan terhadap profitabilitas, sedangkan struktur modal, likuditas dan pertumbuhan perusahaan tidak berpengaruh signifikan terhadap profitabilitas.
Keyword: analisis regresi linear berganda, profitabilitas, rasio keuangan, sektor industri barang konsumsi

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