Dengue Hemorrhagic Fever (DHF) is caused by dengue viruses that belong to Flaviviridae. The disease is known to be caused by 4 types of dengue viruses, namely DENV-1, DENV-2, DENV-3, and DENV-4 associated with antigenic. Dengue virus is a virus RNA that causes illness with clinical manifestations of Dengue Fever, Dengue Hemorrhagic Fever and Dengue Shock Syndrome. The aim of research was to determine the effectiveness of dimethyl sulfoxide, acetone, and ethanol 70% as precipitation solvent in the process of RNA isolation. The method used was Reverse Transcription - Polymerase Chain Reaction (RT-PCR) and Polymerase Chain Reaction (PCR) with specific primers for dengue virus type 1 (DENV-1). RNA isolation can be done easily using an RNA Isolation Kit. Use of RNA Isolation Kit results in a purer RNA isolate from contaminants and from RNA degradation. In generally the isolation is using cold ethanol / alcohol with concentration 90-95%. Ethanol / Alcohol does not dissolve RNA and light density of alcohol lighter than water makes RNA rise and hover on the surface. In RNA isolation solvent precipitation that used are acetone, ethanol 70%, and DMSO. In qualitative RNA measurements using agarose gel electrophoresis and was examined under the UV light-illuminator and quantitative RNA measurements using Nanodrop spectrophotometry with absorbance ratio at 260/280 and 260/230 showed a good result indicated by the appearance of the band on electrophoresis results in PCR. While the measurement quantitatively is showed that there was still protein contamination but the results are quite good because it does not much different from the ratio set in the reference. Acetone, ethanol 70%, and DMSO can be used as a substitute of 96% ethanol in the process of RNA isolation in DENV-1 virus and can also be applied to other dengue virus because the structure of the 4th antigen serotype is very similar one with the other and no effect.
Dalam era teknologi dan informasi sekarang ini disadari bahwa hampir semua aspek kegiatan disegala bidang ditentukan oleh kualitas dari teknologi dan informasi yang diterima dan dihasilkan. Pemakaian komputer sebagai salah satu hasil dari teknologi saat ini sangat meluas dan memasyarakat tidak hanya terbatas dalam lingkungan kerja tetapi dalam kehidupan sehari-hari. Dalam hal ini komputer merupakan alat bantu yang mutlak digunakan dalam pengolahan informasi, maupun penunjang dalam sistem pengambilan keputusan.Dalam hal ini kita sebagai manusia terutama mahasiswa dituntut untuk aktif dan bisa melihat peluang dari perkembangan teknologi yang semakin pesat. Bisa berkreasi dan memberikan manfaat yang begitu bnyak terutama untuk masyarakat yang berkecimpung dalam dunia teknologi maupun masyarakat yang awam akan teknologi.Maka dari itu demi terwujudnya hal tersebut pengetahuan dan lmu yang cukup untuk memahami segala sesuatu tentang teknologi baik dari masalah maupun solusi yang akan dikembangkan, kebutuhan ini di perlukan oleh semua kalangan terutama yang berkecimpung didunia teknologi “Analisa Tools & IDEEF0” merupakan suatu jenis atau pengetahuan di dalam teknologi dimana Analisa Tools sangat diperlukan guna menunjang segala kebutuhan di dalam teknologi yang dibuat. Sedangkan IDEF0 merupakan metode dalam pemodelan proses bisnis yang berbasis ADT, serta dapat berguna sebagai metode untuk mengatasi masalah baik otomatis maupun non-otomatis. Untuk mengantisipasi masalah ini maka diperlukan suatu sistem informasi yang lebih baik oleh pihak terkait. Komputerisasi dapat mempermudah sesuatu saat datatersebut akan dipergunakan sebagai bahan informasi.Dengan adanya sistem informasi ini diharapkan user terbantu dan dapat tercapai kebutuhan-kebutuhan yang di perlukan,yang tersedia dengan baik sehingga tidak memerlukan waktu yang lama untuk mencari data-data tersebut. Berdasarkan latar belakang di atas maka kami membuat makalah tentang ”Analisa Tools & IDEF0” Denganharapan dapat membuat user lebih tahu dengan materi yang kami sampaikan dan dapat bermanfaat untuk kedepanya.
Dengue virus (DENV) serotypes possess various types from DENV-1 to DENV-4 that are enveloped viruses belong to the genus Flavivirus of the Flaviviridae. Dengue vaccine or antiviral has not yet been clinically approved for humans, even though there have been significant efforts toward this end. Antiviral activity against DENV is needed to develop to be an alternative drug for the DENV virus. Cobalt(II) chloride has been used in the treatment and prevention of diseases of humans since ancient times. This study aimed to investigate the antiviral effects and Cytotoxicity of Cobalt(II) chloride. This compound was further investigated for its inhibitory effect on the replication of DENV-1 in Vero cells. The antiviral activity and cytotoxic was measured by WST-1 assay. The IC50 value of the Cobalt(II) chloride for DENV-1 was 0.38 μg/ml. The cytotoxicity of Cobalt(II) chloride to Vero cell suggests that the CC50 value was 2.91 µg/ml. The results of this study demonstrate the anti-dengue serotype 1 inhibitory activity of Cobalt(II) chloride was highly toxic.
The purpose of this study is to ascertain the effect of social media utilization, creativity, and emotional intelligence on student’s entrepreneurship interest in Jakarta. The type of data used in quantitative. The sampling technique was purposive sampling to 150 respondents who were included in the research criteria. The data was obtained usimg a survey method with Likert Type. The data anlysis technique used is multiple linear regression analysis using SPSS version 25. Based on the test results, it was stated that the utilization of social media had a positive and significant effect on interest in entrepreneurship, creativity had a positive and significant effect on interest in entrepreneurship and emotional intelligence had a positive and significant effect on interest in entrepreneurship. The coefficient of determination in this study was 47,4% which showed the social media utilization, creativity and emtional intelligence on student’s entrepreneurship interest in Jakarta while unstudied additional factors affected the remainder. Penelitian ini bertujuan untuk mengetahui pengaruh pemanfaatan media sosial, kreativitas, dan kecerdasan emosional terhadap minat berwirausaha mahasiswa di Jakarta. Metode yang digunakan pada penelitian ini adalah metode kuantitatif. Teknik pengambilan sampel secara purposive sampling kepada 150 responden yang termasuk kedalam kriteria penelitian. Data didapatkan menggunaka metode survei dan instrumen kuesioner dengan skala likert. Dengan teknik analisis regresi linear berganda menggunakan bantuan aplikasi SPSS versi 25.0. Berdasarkan hasil pengujian hipotesis dinyatakan bahwa pemanfaatan media sosial berpengaruh secara positif dan signifikan terhadap minat berwirausaha, kreativitas berpengaruh secara positif dan signifikan terhadap minat berwirausaha serta kecerdasan emosional berpengaruh positif dan signifikan terhadap minat berwirausaha. Koefisien determinasi pada penelitian ini adalah 48,5% yang menunjukkan pemanfaatan media sosial, kreativitas dan kecerdasan emosional memengaruhi minat berwirausaha, sedangkan sisanya dipengaruhi faktor lain yang tidak diteliti.
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