Judul: The Influence of Lifestyle and Product  Knowledge towards Consumer Satisfaction in Purchasing Skincare during Flash  Sale in E-Commerce
Abstrak: Perkembangan teknologi memengaruhi perilaku konsumen, salah satunya yaitu perubahan belanja offline menuju online. Flash sale merupakan promosi yang sering digunakan penjual untuk meningkatkan penjualan produk. Skincare menjadi salah satu produk yang digemari konsumen yang dibeli secara online di e-commerce. Tujuan penelitian ini adalah menganalisis kepuasan konsumen pembelian skincare saat flash sale di e-commerce yang dipengaruhi gaya hidup dan pengetahuan produk. Desain penelitian adalah desain eksplanatori dan teknik purposive sampling dengan jumlah contoh sebanyak 183 orang. Data diolah menggunakan program Microsoft Excel 2016, Statistical Program for Social Sciences (SPSS) 25 dan SMART-PLS 3.0. Hasil uji hubungan menunjukkan bahwa jenis kelamin berhubungan dengan pengetahuan produk. Frekuensi pembelian berhubungan dengan gaya hidup dan pengetahuan, serta jenis skincare berhubungan dengan pengetahuan produk. Hasil uji pengaruh SEM menunjukkan terdapat pengaruh signifikan gaya hidup terhadap pengetahuan produk dan kepuasan konsumen. Pengetahuan produk tidak berpengaruh terhadap kepuasan konsumen pembelian skincare saat flash sale., Technological developments affect consumer behavior, one of which is the change from offline to online shopping. Flash sale is a promotion that is often used by sellers to increase product sales. Skincare is one of the products favored by consumers who are purchased online in e-commerce. The purpose of this study is to analyze consumer satisfaction in purchasing skincare during flash sales in e- commerce which is influenced by lifestyle and product knowledge. The research design is an explanatory design and purposive sampling technique with a sample size of 183 people. Data were analyzed using the Microsoft Excel 2016 program, Statistical Program for Social Sciences (SPSS) 25 and SMART-PLS 3.0. The relationship test results show that gender is related to product knowledge. Frequency of purchase is related to lifestyle and knowledge, and type of skincare is related to product knowledge. The SEM effect test results show that there is a significant effect of lifestyle on product knowledge and customer satisfaction. Product knowledge has no effect on consumer satisfaction when purchasing skincare during flash sales.
Keyword: customer satisfaction, flash sale, lifestyle, product knowledge

Judul: The Effect of, Perceived Risk, and Beauty Lifestyle towards Skincare Purchasing Decision on E-commerce
Abstrak: Era digitalisasi mendorong berkembangnya transaksi belanja online (ecommerce). Konsumen sering kali tidak menyadari bahwa dibalik kemudahan berbelanja terdapat risiko yang harus dipertimbangkan. Tujuan penelitian ini adalah menganalisis keputusan konsumen dalam membeli skincare melalui e-commerce. Metode survei yang digunakan untuk pengambilan data adalah teknik nonprobability sampling yaitu voluntary sampling. Data dianalisis dengan analisis deskriptif dan analisis kolerasi, sementara, analisis dilakukan dengan Structural Equation Modeling (SEM) menggunakan SmartPLS. Penelitian ini dilakukan terhadap 196 responden yang merupakan Warga Negara Indonesia (WNI), berusia minimal 17 tahun dan pernah membeli produk perawatan kulit melalui e-commerce. Hasil studi menunjukan bahwa keputusan pembelian responden tergolong baik sedangkan, persepsi risiko dan beauty lifestyle responden tegolong pada kategori sedang. Analisis SEM menunjukkan bahwa beauty lifestyle berpengaruh signifikan terhadap keputusan pembelian konsumen, sedangkan persepsi risiko tidak memiliki efek terhadap keputusan pembelian., The digitalisation era promotes the growth of e-commerce, which enables online shopping transactions. However, consumers may not be aware of the potential risks associated with the convenience of e-commerce. Therefore, this study aims to examine consumer decision making when purchasing skincare products through e-commerce. Non-probability sampling, specifically voluntary sampling, was employed to gather data. Data were analysed using descriptive analysis, and correlation analysis. Additionally, Structural Equation Modelling (SEM) was utilized through SmartPLS for analysis. The study was conducted on 196 Indonesian citizen, aged 17 years old and above, and have purchased skin care products through e-commerce. The study results indicate that the respondents' purchasing decisions were high, whereas their risk perception and beauty lifestyles were classified as medium. The results of the SEM analysis demonstrate that a beauty-oriented lifestyle significantly impacts consumer purchasing decision, whereas risk perception have no significant effect towards purchasing decision.
Keyword: Gaya hidup, keputusan pembelian, persepsi risiko, perawatan kulit

Judul: Ornithonyssus Bursa (Berlese, 1888) Famili Macronyssidae yang Menyerang Unggas Dan Penaggulangannnya
Abstrak: Ornithonyssus bursa adalah tungau penghisap darah pada unggas di daerah tropis dan subtropis. Tungau ini relatif kecil, dengan panjang tubuh antara 700-1000 mikron dan lebarnya 250-490 mikron. Tubuhnya bulat berwarna coklat kekuningan sebelum menghisap darh dan berwarna merah setelah menghisap darah dari induk semangnya.
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