Article Per Year (5 Year)
p-Index From 2021 - 2026
0.61
P-Index
This Author published in this journals
All Journal Jurnal Kesehatan Andalas Journal of Tropical Food and Agroindustrial Technology Journal of Mathematics UNP
Oktavia, Nanda
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Computer Science & IT Decision Sciences, Operations Research & Management Health Professions Mathematics

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
MODEL MATEMATIKA KETERGANTUNGAN MASYARAKAT TERHADAP MEDIA SOSIAL Oktavia, Nanda; Rosha, Media
Journal of Mathematics UNP Vol 8, No 4 (2023): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/unpjomath.v8i4.14908

Abstract

The convenience presented by social media technology leads to dependence on its users. Social media dependence has a bad impact on humans and is very dangerous for its users. Thus it is necessary to analyze how the level of dependence of society on social media. The transmission of social media dependence occurs if there is interaction between communities. The study aims to determine the level of dependence of the community on social media. This research is stated ase basic research and uses literature studies. This research begins with identifying problems, formulating mathematical models, conducting stability analysis at the point and interpreting the mathematical model. Based on the results of the analysis, this point remains free and endemic to people's dependence on social media exists and will be asymptotic stable if it meets some of the conditions of the Routh-Hurwitz criteria. Based on the simulation results, the interaction and the number of people who recover can affect the spread of dependence on social media. The spread of people's dependence on social media will be reduced if the rate of recovery is increased.
Korelasi Kadar Protein C-Reaktif dengan Rasio Kolesterol Total / HDL pada Penyandang Obes di RSUP Dr M Djamil Padang Oktavia, Nanda; Nasrul, Ellyza; Efrida, Efrida
Jurnal Kesehatan Andalas Vol. 10 No. 2 (2021): Online July 2021
Publisher : Faculty of Medicine, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jka.v10i2.1714

Abstract

C-reactive protein is an acute-phase protein produced by the liver in response to inflammation. Dyslipidemia can trigger the inflammatory reaction in the blood vessels, causing atherosclerosis. The ratio of total cholesterol/High Density Lipoprotein (HDL) is considered as one of the sensitive predictor lipid ratio for the cardiovascular disease risk factor. Objectives: To determined the correlation of C reactive protein between cholesterol levels with total cholesterol/HDL ratio in obese people. Methods: This study was an analytical study with a cross-sectional design of 59 people who met the inclusion and exclusion criteria at the RSUP Dr. M. Djamil Padang from January to September 2019. Research subjects consisted of first degree obesity (25.0 ≤IMT <30.0 kg/m2) and second degree (≥30.0 kg/m2). C reactive protein levels were measured as high-sensitivity C-reactive protein. Total cholesterol and HDL levels were measured using automated clinical chemicals with the enzymatic colorimetric method. Data were analyzed by Pearson, significant if p <0.05. Results: The study subjects were 59 people (17 men and 22 women) with an average age was 35 (8.04) years. CRP levels in stage II obesity were slightly higher than grade I, with a mean difference between groups of 0.26 mg/L (95% CI: -1.80-1.2; p=0.74). The average ratio of total cholesterol/HDL levels in the obese group I and II was 5.13 and 4.80 (p=0.93). The correlation showed a very weak positive (r=0.12) and was statistically not significant (p=0.35). The results of the subanalysis showed relatively similar patterns between the first-degree obesity population (r=0.10; p=0.58) and second-degree (r=0.16; p=0.41). Conclusion: There is no significant correlation between protein C-reactive and total cholesterol/HDL ratio.Keywords: Obesity, C-Reactive Protein, total cholesterol/HDL ratio
Effect of Chitooligosaccharide Characteristics from Several Types of Shells on Prebiotic Activity : A Brief Review: Pengaruh Karakteristik Chitooligosakarida dari Beberapa Macam Cangkang Terhadap Aktivitas Prebiotik : Review Singkat Patrisiya, Berta; Oktavia, Nanda; Zhorif , Muhammad Naufal; Priyanto, Anugerah Dany
jurnal makanan tropis dan teknologi agroindustri Vol 4 No 02 (2023): July
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/jtfat.v4i02.1613

Abstract

Seafood is one of the foods favored by the community and has waste that is not used properly, such as shells. The component contained in the highest shell is chitin, this chitin content can be processed into chitosan. Chitosan is obtained from a process, namely enzymatic and chemical hydrolysis and this process can also be used to obtain chitooligosaccharides. Chitooligosaccharides are complex compounds of the glycoprotein group which have -1,4 glucosamine bonds. Chitooligosaccharides can act as prebiotics. Recently, there has been a lot of research on the characteristics and prebiotic activity of chitooligosaccharides. However, there is a lack of information regarding the relationship between the characteristics and prebiotic activity of chitooligosaccharides mainly from different sources of chitooligosaccharides. Therefore, the aim of this review is to summarize and collect viewpoints regarding the relationship of characteristics with prebiotic activity. The characteristics of chitosan of each type of shell have differences, the main parameter is the degree of deacetylation. The high degree of deacetylation and yield can affect the yield on the characteristics of the chitooligosaccharides produced. Thus, the higher the degree of deacetylation of chitosan, the higher the degree of deacetylation of chitooligosaccharides, so that it can show high prebiotic activity because probiotic bacteria can grow well. Accordingly, this summary can contribute to explaining a comprehensive review of the characteristics of chitooligosaccharides on the prebiotic activity of underutilized and safe materials for consumption.
Co-Authors Anugerah Dany Priyanto, Anugerah Dany Efrida Efrida Ellyza Nasrul Media Rosha Patrisiya, Berta Zhorif , Muhammad Naufal