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All Journal Jurnal Ilmu Administrasi Bisnis JOURNAL OF CHEMICAL NATURAL RESOURCES (JCNaR)
Diah Tri Utami
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Biochemistry, Genetics & Molecular Biology Chemistry Economics, Econometrics & Finance Materials Science & Nanotechnology

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PENGARUH KESADARAN MEREK, PERSEPSI KUALITAS DAN ASOSIASI MEREK TERHADAP LOYALITAS MEREK MELALUI KEPUASAN KONSUMEN SEBAGAI VARIABEL INTERVENING PADA PENGGUNA IM3 (STUDI PADA MAHASISWA S1 UNIVERSITAS DIPONEGORO SEMARANG) Diah Tri Utami; Saryadi Saryadi
Jurnal Ilmu Administrasi Bisnis Vol 6, No 4 (2017)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (224.628 KB) | DOI: 10.14710/jiab.2017.17832

Abstract

This research is motivated by the development of the world of technology,especially mobile phones that result in intense competition among companies. IM3 alwaysstrive to provide the best service to consumers through the services they have. So IM3managed to become the top brand for the category of Top of Mind simcard in 2014 to 2016.In addition, the total IM3 users in each year also increased.The aims of research is to determine the effect of brand awareness, perceivedquality, and brand association towards the brand loyalty of IM3 user, in partially orsimultaneously through customer satisfaction as an intervening variable. The population ofthis research is all undergaduate students in Diponegoro University who use IM3. Samplingis done gradually with Multistage Sampling method. Samples obtained on this research were96 respondents. The data for this research were obtained from questionnaires, literaturestudies, and interview to respondents. Analytical methods used validity test, reliability test,simple linear regression analysis and multiple linear regression analysis, coefficient ofdetermination, significance test (t test) and (f test) and path analysis with SPSS tool.The results of this research showed that the variable of brand awareness (X1),perceived quality (X2), brand association (X3), and customer satisfaction (Z) have a strongeffect on brand loyalty (Y). It can be seen from the coefficient of multiple correlation that isequal to 0,769, and F table test equal to 33,023 bigger than F table. The result of pathanalysis concerning on the influence variable of brand awareness (X1), perceived quality(X2), and brand association (X3) toward the brand loyalty (Y) of IM3 users through customersatisfaction (Z) as intervening variable is evident. The effect of brand awareness (X1),perceived quality (X2), brand association (X3) toward brand loyalty (Y) of IM3 users will behigher if through customer satisfaction (Z).Based on the results of the research, the researcher suggested that the company willimprove the provision of information about the brand, ranging from service, productdiversity, and quality improvement in order to create IM3 user brand loyalty, making IM3 anincreasingly superior brand.
Antimicrobial Activity of Dadap Serep (Erythrina subumbrans (Hassk.) Merr.) Leaves Extract Diah Tri Utami
Journal of Chemical Natural Resources Vol. 1 No. 1 (2019): Journal of Chemical Natural Resources
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (631.116 KB) | DOI: 10.32734/jcnar.v1i1.834

Abstract

The leaves of Erythrina has been used in Indonesia as a remedy for rheumatism, stomach-ache, asthma, dysentery, contact dermatitis, eczema and skin infections. However, there have been limited phytochemical or biological studies on the leaves of E. subumbrans and there are not studies that align with its traditional medicinal uses. The aim of this study was to assess the antimicrobial activity of the leaves of E. subumbrans to support its topical use in the treatment of skin infections. Disc diffusion agar assays were used to determine the antimicrobial activities of ethanol extracts of the leaves of E. subumbrans.The ethanol extracts showed the most significant activity with MIC values of 0,5 µg/mL. against a sensitive strain of Staphylococcus epidermidis. Extract concentration of 0,5 mg/ml, 1 mg/ml, 5 mg/ml and 10 mg/ml showed inhibition zone continuously as high as 1,83 mm; 3,42 mm; 5,17 mm, and 8,00 mm. The ethanol extracts of the leaves of E. subumbrans also showed significant activity against Candida albicans with MIC values of 0,5 µg/mL. Extract concentration of 0,5 mg/ml, 1 mg/ml, 5 mg/ml and 10 mg/ml showed inhibition zone continuously as high as 4,00 mm; 4,17 mm; 5,25 mm, and 6,50 mm. Bioactive substance test showed that alkaloid, flavonoid, saponin, and triterpenoid were found in E. subumbrans extract indicates potential activity as antimicrobial agent. These results provide support for the customary (traditional and contemporary) use of E.subumbrans leaves for the treatment of nosocomial infections.
Co-Authors I Ketut Suada