Article Per Year (5 Year)
p-Index From 2021 - 2026
0.61
P-Index
This Author published in this journals
All Journal EXPOSURE JOURNAL Jurnal Redoks Jurnal Pandu Husada Jurnal Implementa Husada (JIH)
Hervina Hervina
Unknown Affiliation
Chemical Engineering, Chemistry & Bioengineering Dentistry Education Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Medicine & Pharmacology Nursing Public Health Veterinary

Published : 5 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 5 Documents
Search

 1 
PEMBUATAN ETANOL DARI MARINDA CITRIFOLIA, LINN DENGAN MENGGUNAKAN VARIASI YEAST S. CEREVISIAE Syamsul Bahri; Hervina Hervina; Juli Anton Amin
Jurnal Redoks Vol 1, No 1 (2016): Redoks Januari - Juni
Publisher : Universitass PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (872.985 KB) | DOI: 10.31851/redoks.v1i1.2022

Abstract

ABSTRAKMarinda citrifolia, linn merupakan buah yang kaya akan manfaat dan memiliki kandungan karbohidrat yang  cukup tinggi yaitu 51,67 gr . Marinda citrifolia,linn digunakan sebagai bahan baku dari pembuatan etanol dengan proses hidrolisis menggunakan HCl dan digunakan variasi ragi Yeast S. Cerevisiae  seberat 10, 15, 20 gr dengan waktu fermentasi selama 3 hari. Kemudian  hasil fermentasi di distilasi selama 1 jam. Pada penelitian ini diperoleh etanol dengan variasi ragi 10 gr seberat 2,75 gr ; Ragi 15 gr seberat : 2 gr, ; dan ragi 15 gr seberat : 1 gr. Kata kunci : Marinda citrifolia, linn , Hidrolisis, Yeast S. Cerevisiae,  Fermentasi, Distilasi
METACOGNITIVE STRATEGY IN READING COMPREHENSION USED BY THE STUDENTS OF STKIP YAYASAN ABDI PENDIDIKAN PAYAKUMBUH Hervina Hervina; Ifna Nifriza; Afdaleni Afdaleni; Dila Thampisa
EXPOSURE : JURNAL PENDIDIKAN BAHASA INGGRIS Vol 11, No 2 (2022): Exposure
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/exposure.v11i2.9204

Abstract

This study is descriptive qualitative. The sample of this study was sixth semester students in English department of STKIP Abdi Pendidikan Payakumbuh. There were 31 students. The writer choose the sample by using purposive sampling technique. The instrument of this study was the questionnaire which was consist of 30 items based on survey of reading strategy developed by Mokhtary and Sheorey in 2002. Based on data analysis the data can be shown as follow: in using Global Strategy; 8.44% students chose always, 36.22% students chose often, 43.67% students chose sometime, 10.91% students chose seldom and 0.74% students chose never. Meanwhile, in using problem solving Strategy; 12.91% students chose always, 43.15% students chose often, 38.737% students chose sometime, 3.63% students chose seldom and 1.61% students chose never. Last, in using support strategy; 15.43% students chose always, 36.2% students chose often, 35.12% students chose sometime, 11.83% students chose seldom and 1.43% students chose never. Based on the data, it can be concluded that metacognitive strategy in reading comprehension applied by the students  were Support strategy and then followed by Problem – solving strategy and Global strategy.Keywords: metacognitive strategy, reading comprehension, STKIP students 
Hubungan Tingkat Pengetahuan Dan Sikap Dengan Kejadian Acne Vulgaris Pada Remaja di SMA Muhammadiyah 02 Medan Arda Tilla; Hervina Hervina
JURNAL PANDU HUSADA Vol 1, No 1 (2020)
Publisher : Universitas Muhammadiyah Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/jph.v1i1.3849

Abstract

Acne Vulgaris is a skin disease caused by inflammation in the pilosebaseusfollicleAbstract: Acne Vulgaris is a skin disease caused by inflammation in the pilosebaseusfollicle and this is the most common disease in adolescents within aged 15 to 18. Theaesthetic patients usually complained about Acne Vulgaris. There are many factors thatcan make Acne Vulgaris such as ages, ras, hereditary, unbalance of hormonal, stress,food, cosmetic, types of skin, lackage of knowledge and attitude of adolescents. Thepurpose of this study is to determine the relationship between the level of knowledge andattitudes of adolescents at Muhammadiyah 02 Medan High School with the incidence ofAcne Vulgaris. This research used descriptive analytic method with cross-sectional design.The subjects in this study were students from Muhammadiyah 02 Medan High School. Thetechnique in this study was using simple random sampling and data analysis was using thechi square test. Retrieving data through filling in questionnaires. Test about the level ofknowledge of the students of Muhammadiyah 02 Medan High School about Acne vulgarismajority is categorized as sufficient (48.4%) and the results of attitude tests on Acnevulgaris were mostly categorized as good (66.7%). knowledge and attitude with theincidence of Acne vulgaris obtained p -0.877 (p 0.05) and p 0.000 (p 0.05) There wasno relationship between the level of knowledge with the incidence of Acne vulgaris, butthere was relationship between attitude with the incidence of Acne vulgaris. Keywords : acne, teenagers, knowledge, attitudeand this is the most common disease in adolescents within aged 15 to 18. The aesthetic patients usually complained about Acne Vulgaris. There are many factors that can make Acne Vulgaris such as ages, ras, hereditary, unbalance of hormonal, stress, food, cosmetic, types of skin, lackage of knowledge and attitude of adolescents. The purpose of this study is to determine the relationship between the level of knowledge and attitudes of adolescents at Muhammadiyah 02 Medan High School with the incidence of Acne Vulgaris. This research used descriptive analytic method with cross-sectional design. The subjects in this study were students from Muhammadiyah 02 Medan High School. The technique in this study was using simple random sampling and data analysis was using the chi square test. Retrieving data through filling in questionnaires. Test about the level of knowledge of the students of Muhammadiyah 02 Medan High School about Acne vulgarismajority is categorized as sufficient (48.4%) and the results of attitude tests on Acne vulgaris were mostly categorized as good (66.7%). knowledge and attitude with the incidence of Acne vulgaris obtained p -0.877 (p 0.05) and p 0.000 (p 0.05) There was no relationship between the level of knowledge with the incidence of Acne vulgaris, but there was relationship between attitude with the incidence of Acne vulgaris. Keywords : acne, teenagers, knowledge, attitude
Efektivitas Ekstrak Etanol Daun Kelor terhadap Cutibacterium Acnes Fadhilah Saswita Siregar; Hervina Hervina
JURNAL IMPLEMENTA HUSADA Vol 4, No 2 (2023)
Publisher : UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/jih.v4i2.13637

Abstract

Abstrak : Acne vulgaris adalah suatu penyakit pada kulit yang kronis dan multifaktorial dengan adanya tanda peradangan seperti komedo, papula, dan pustul. Acne vulgaris disebabkan oleh Cutibacterium acnes (C. acnes) sebelumnya dikenal dengan nama Propionibacterium acnes. Daun kelor (Moringa oleifera) memiliki kandungan senyawa yang dapat ditemukan pada daun kelor yakni flavonoid, alkaloida, triterpenoid/steroida, fenolat, dan juga tanin, dapat sebagai antibakteri. Metodologi : Penelitian ini menggunakan metode true eksperimental design. Ektraksi dilakukan dengan cara meserasi menggunakan pelarut etanol 70%. Teknik yang digunakan untuk mengukur aktivitas antibakteri adalah metode difusi cakram dengan mengukur zona jernih dengan konsentrasi 30%, 50% dan 70% dan mengetahui konsentrasi yang paling efektif terhadap pertumbuhan bakteri C. acnes. Hasil penelitian : Hasil menunjukkan ekstrak daun kelor (Moringa oleifera) pada konsentrasi 30%, 50%, dan 70%, kontrol positif (klindamisin) dan kontrol negatif (aquadest) diperoleh nilai (p=0,000) dimana (p0,05) yang menunjukkan terdapat perbedaan daya hambat dari masing-masing kelompok. Konsentrasi 70% dari ekstrak daun kelor paling efektif dalam mengahambat pertumbuhan bakteri C. acnes dibandingkan konsentrasi 30% dan 50%. Kesimpulan : Terdapat efek daya hambat dari ekstrak daun kelor terhadap pertumbuhan bakteri C. acnes secara in vitro.
Efektifitas Ekstrak Daun Bidara Laut (Ziziphus mauritiana) terhadap Penyembuhan Luka Bakar pada Tikus Putih (Rattus norvegicus L.) Galur Wistar Risky Ananda Hasibuan; Hervina Hervina
JURNAL IMPLEMENTA HUSADA Vol 4, No 3 (2023)
Publisher : UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/jih.v4i3.15856

Abstract

Luka bakar adalah kerusakan kulit yang disebabkan oleh trauma panas atau trauma dingin (frost bite). Penyebabnya adalah api, air panas, listrik, bahan kimia, radiasi, dan Trauma dingin (frost bite). Penyembuhan luka melalui tiga fase, yaitu fase inflamasi, fase proliferasi, dan fase remodeling. Bidara laut (Ziziphus mauritiana) yang mengandung senyawa alkaloid, glikosida, saponin, flavonoid, terpenoid, dan fenolat yang berkhasiat sebagai antioksidan, anti inflamasi, antimikroba, antijamur dan mencegah tumor. Tujuan penelitian ini membandingkan efektivitas ekstrak daun laut bidara (Ziziphus mauritiana) dan kelompok pengobatan lainnya pada penyembuhan luka bakar. Metode penelitian ini adalah true experimental  dengan rancangan post-test control group design dan menggunakan observasi dengan skor Nagaoka. Analisis data menggunakan uji Man-Whitney. Hasil penelitian ini didapatkan rata-rata skor Nagaoka antara kelompok perlakuan dan kontrol mengenai alergi 3:3, infeksi 3:3, waktu penyembuhan 1,8:1,4. Sedangkan rata-rata Skor total Nagaoka untuk penyembuhan luka bakar antara kelompok perlakuan adalah 7,88 dan kelompok kontrol adalah 7,44. Uji Mann Whitney menunjukkan perbedaan signifikan antara kelompok perlakuan dan kontrol dengan nilai 0,010 (p0,05). Ekstrak daun bidara laut efektif dalam penyembuhan luka bakar pada tikus putih (Rattus norvegicus L) galur wistar.
Co-Authors Afdaleni Arda Tilla Dila Thampisa Fadhilah Saswita Siregar Juli Anton Amin Nifriza, Ifna Risky Ananda Hasibuan Syamsul Bahri