Judul: Analisis Perilaku Konsumen Daging Sapi Pada Kondisi Pandemi Covid-19 di Kecamatan Sukmajaya Kota Depok
Abstrak: Tujuan dari penelitian ini untuk menganalisis perilaku konsumen daging sapi dan pembelian daging sapi masyarakat di kecamatan Sukmajaya kota Depok terhadap konsumsi daging sapi pada kondisi pandemi COVID-19. Teknik pengambilan sampel secara Stratified Random Sampling berdasarkan enam wilayah kelurahan yang terdapat dalam satu kecamatan, dan Behavior Mapping untuk menganalisis perilaku konsumsi daging sapi pada kondisi pandemi COVID-19. Jumlah sampel ditentukan dengan rumus Slovin yang didapat sebanyak 180 responden yang dipilih berdasarkan domisili. Pengumpulan data dilakukan dengan mengisi kuesioner online Google Form. Variabel yang diamati adalah harga dan lonjakan harga, lokasi pembelian (pasar tradisional, pasar swalayan, pedagang sayur keliling, retail online), perilaku pemilihan daging berdasarkan sifat fisik (tekstur, warna, dan lemak) pada kondisi sebelum dan saat tahun pertama pandemi berlangsung. Hasil penelitian menunjukan bahwa mayoritas responden adalah perempuan usia 40-49 tahun, tingkat pendidikan S1, memiliki 4 anggota keluarga atau lebih, pendapatan di atas Rp3.000.000. Konsumsi daging sapi pada kondisi pandemi COVID-19 rata-rata 1-2 kali per bulan, dengan pembelian di pasar tradisional sebanyak 1-2 kg. Perilaku konsumen terhadap harga dan lonjakan harga daging sebelum dan pada saat pandemi tidak berpengaruh terhadap konsumsi daging sapi. Pada sebelum dan saat pandemi, perilaku pemilihan berdasarkan sifat fisik, warna dan lemak serta kemudahan akses berpengaruh positif terhadap konsumsi daging sapi, kecuali perilaku perabaan daging pada saat pandemi tidak dilakukan perabaan pada saat pembelian daging.
Keyword: Beef consumption, behavior, COVID-19 Pandemic, Sukmajaya District

Judul: Analysis of Student Behaviour towards Beef  Consumption Before and During COVID-19 Pandemic
Abstrak: Daging sapi merupakan salah satu pangan yang permintaan meningkat setiap tahun. Konsumsi daging sapi akan meningkat seiring dengan pertumbuhan pendapatan nasional, namun kondisi tersebut tidak dapat dipastikan akibat pandemi COVID-19. Tujuan penelitian ini yaitu menganalisis perubahan perilaku konsumsi daging sapi dari masa sebelum pandemi dan selama pandemi COVID-19 berlangsung. Penelitian ini menggunakan data primer yang diperoleh melalui metode wawancara dengan google form. Kriteria responden merupakan mahasiswa di Indonesia. Hasil data yang diperoleh dianalisis secara deskriptif. Hasil penelitian menunjukkan bahwa perubahan perilaku mahasiswa terhadap konsumsi daging sapi relatif tidak berbeda dari sebelum pandemi hingga berlangsungnya pandemi COVID-19., Beef is one type of food that has an increasing demand level each year. Nationally, beef consumption will rise along with the growth of income, however, the current condition cannot be ascertained because of the COVID-19. The purpose of this research is to analyse the behavioural change of beef consumption before and during the COVID-19 Pandemic. This research use primary data which obtained through survey method using google from. The criteria of the respondent Indonesian collage student. The result from this research shown that beef consumption behaviour relatively did not change before until the pandemic COVID-19 continuous.
Keyword: beef consumption, behaviour, pandemic

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