Judul: Pengaruh Electronic Word of Mouth, Perceived Quality, dan Brand Image terhadap Keputusan Pembelian Smartphone
Abstrak: Persaingan bisnis di industri smartphone yang kompetitif menuntut produsen untuk selalu memenangkan keputusan pembelian konsumen. Beberapa faktor yang dapat berpengaruh terhadap keputusan pembelian adalah faktor budaya, faktor sosial, faktor pribadi, faktor psikologis dan faktor situasional. Penelitian ini bertujuan untuk melihat pengaruh electronic word of mouth, perceived quality, dan brand image terhadap keputusan pembelian smartphone. Metode pengambilan responden menggunakan purposive sampling dengan jumlah 170 orang data dikumpulkan melalui pengisian kuesioner secara online. Analisis data menggunakan Partial Least Square-Structural Equation Model (PLS-SEM). Hasil penelitian menunjukkan bahwa electronic word of mouth, perceived quality, dan brand image berpengaruh positif dan signifikan terhadap keputusan pembelian dan brand image memiliki pengaruh terbesar terhadap keputusan pembelian. Upaya yang dapat dilakukan perusahaan smartphone untuk dapat bersaing di industri adalah menjaga perceived quality dengan menyesuaikan espektasi konsumen terhadap produk yang dikeluarkan, mengelola reputasi secara proaktif dengan menggunakan electronic word of mouth, secara aktif mengelola brand image yang baik melalui kampanye pemasaran, dan menggunakan influencer marketing.
Keyword: brand image, electronic word of mouth, keputusan pembelian, perceived quality, PLS-SEM

Judul: Faktor-Faktor yang Mempengaruhi Mahasiswa dalam Memilih Merek Smartphone dan Dampaknya Terhadap Pangsa Pasar (Studi Kasus: IPB)
Abstrak: Smartphone sudah menjadi kebutuhan masyarakat modern di berbagai kalangan usia saat ini. Berbagai merek smartphone yang masuk ke Indonesia bersaing menawarkan produknya dengan berbagai keunggulan masing-masing menimbulkan persaingan dalam merebut pangsa pasar. Variasi pada produk smartphone seringkali mendorong konsumen melakukan perpindahan merek yang kemudian berakibat pada berubahnya kondisi pangsa pasar setiap tahun. Evaluasi atribut produk yang relevan merupakan tahap penting dalam membuat keputusan pembelian. Tujuan dari penelitian ini adalah memetakan posisi atribut yang dipentingkan dalam pemilihan merek smartphone dengan biplot berdasarkan persepsi mahasiswa dan menganalisis pangsa pasar smartphone dengan rantai Markov. Hasil penelitian menunjukkan atribut harga dan spesifikasi paling mempengaruhi pemilihan merek Oppo dan Xiaomi. Atribut desain, kualitas, dan layanan purna jual paling mempengaruhi pemilihan merek Realmi dan Iphone. Atribut citra merek yang paling mempengaruhi pemilihan merek Samsung dan Vivo. Hasil penelitian juga menunjukkan pada kondisi steady state atau keseimbangan jangka panjang, pangsa pasar Samsung sebesar 19,599%, Oppo sebesar 0,024%, Vivo sebesar 0,695%, Xiaomi sebesar 2,712%, Realmi sebesar 0,007%, Iphone sebesar 76,903%, dan merek lainnya 0% ., Smartphones have become a necessity for modern society in various age groups today. Various smartphone brands entering Indonesia compete to offer their products with various advantages then inflicts competition in capturing market share. Variations in smartphone products often encourage consumers to switch brands which then results in changing market share conditions every year. Evaluation of relevant product attributes is an important stage in making purchasing decisions. The purpose of this study is to map the position of the attributes that are important in choosing a smartphone brand with a biplot based on student perceptions and analyze the smartphone market share with the Markov chain. The results show that the price and specification attributes most influence the selection of the Oppo and Xiaomi brands. The attributes of design, quality, and after-sales service most influence the choice of the Realmi and Iphone brands. The brand image attribute that most influences the selection of the Samsung and Vivo brands. The results also show that in steady state or long-term equilibrium, Samsung's market share is 19.599%, Oppo is 0.024%, Vivo is 0.695%, Xiaomi is 2.712%, Realmi is 0.007%, Iphone is 76.903%, and other brands 0%.
Keyword: biplot, brand switching, market share, Markov chain, product attributes

Judul: Biology and ecology of the buffalo fly, haematobia exigua de meijere (diptera:muscidae)
Abstrak: The life history of the buffalo fly was observed at room temperature of 27°-29.5°C and at a relative humidity of 48-68 percent. The eggs hatched after 17-22 hours, with an average of 18 hours. First instar larvae measured 1.25 + 0.16 mm long and 0.27 + 0.037 mm wide. reach the second larval stage. It took 6-12 hours to the second instar larvae measured 2.676 +0.187 mm long and 0.353 +0.028 mm wide. The second instar took about 12-24 hours to reach the third larval stage. The third instar measured 6.833 + 0.189 mm long and 0.919 + 0.051 mm wide. It took about 2-3 days for the third instar to become pupae. Duration of the pupal stage was about 5-7 days before the adults emerged. Under laboratory condition, the buffalo fly completed its life cycle in 9.5 to 10.5 days, whereas under field condition it took 9-14 days with an average of 10.5 days. The growth ratio which was based on the measurements of the cephalo-pharyngeal skeleton of each instar was 1.797. The preoviposition period was 8-12 days and mating usually occurred on the 6th or 7th day. The longevity of the male was 29 days, whereas it was 32 days in the female. The range of egg production under laboratory condition was between 20-139 per female fly. The belly and hind legs of the carabao were the most preferred habitat either during cloudy and cool dry or shiny and warm day. When the weather was clear and the carabao was in the shade, the flies tended to be more distributed particularly on the shoulder, dewlap, back and horns. The carabaos had relatively fewer Musca sp. and Stomoxys calcitrans than cattle; never the less carabaos had a higher infestation of buffalo fly than cattle. Oviposition occured either during the day or night but the buffalo flies were more active during the night than in the day time. The effect of various lengths of exposure time of manure in relation to the oviposition was profound. observed, the maximum number of the buffalo flies was occurred when the dung was exposed for 30 minutes. With increasing time of exposure the number and variety of insects also increase. It was evident that Sepsidae and psychodidae were the most dominant insects emerging from the dung. The number of buffalo flies also increased with increasing
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