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INDONESIA
Jurnal Visi Eksakta
Published by Universitas HKBP Nommensen
ISSN : 27233707     EISSN : 27467678     DOI : 10.51622
Core Subject : Health, Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Immunology & microbiology Industrial & Manufacturing Engineering Mechanical Engineering Medicine & Pharmacology Neuroscience Public Health
Jurnal Visi Eksakta adalah jurnal dalam bidang IPA meliputi bidang: Kedokteran, Pertanian, Teknik dan bidang IPA lainnya yang diterbitkan 2 kali dalam setahun Juli dan Januari
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 71 Documents
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Pembelajaran Dengan Model Kooperatif Tipe Jigsaw Dan Pendekatan Ilmiah Terhadap Kemampuan Siswa Dalam Pemahaman Konsep Dan Pemecahan Masalah Pada Sistem Persamaan Linear Tiga Variabel di kelas X SMA Swasta Raksana Medan T.P 2019/2020 Rizki Agnes Simanjuntak
Jurnal Visi Eksakta Vol. 5 No. 2 (2024): Jurnal Visi Eksakta : Edisi Juli
Publisher : LPPM Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51622/eksakta.v5i2.2489

Abstract

In this study, the test instruments used were mathematical concept understanding and mathematical problem solving test instruments. The population in this study were students of class X SMA Sawasta Raksana Medan odd semester 2019/2020 academic year consisting of 3 classes, namely X IPA 1, X IPA 2, and X IPA 3. This study aims to improve students' ability to solve problems and understand concepts in learning the system of linear equations of three variables. Based on Table 4.15, the results obtained tcount = 1.733 and ttable = 1.671 (tcount> ttable) which means Ha2 is accepted. Thus it can be concluded that learning with the Jigsaw II type cooperative model is better than the scientific approach to problem solving on the system of linear equations of three variables in class X SMA Swasta Raksana Medan TP 2019/2020. Keywords: Jigsaw Type Cooperative, Concept Understanding and SMA Swasta Raksana Medan
EFEKTIVITAS MODELPEMBELAJARAN THINK PAIR SHARE (TPS) TERHADAP KEMAMPUAN PEMAHAMAN KONSEP DAN PEMECAHAN MASALAH PADA MATERI GEOMETRI DERAJAT DAN RADIAN DI KELAS X SMA NEGERI 2 DOLOK SANGGUL TP. 2019/2020 Enita Octalia Siregar
Jurnal Visi Eksakta Vol. 5 No. 2 (2024): Jurnal Visi Eksakta : Edisi Juli
Publisher : LPPM Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51622/eksakta.v5i2.2495

Abstract

This study is an experimental research with a cooperative model. The population in this study were all tenth grade students at SMA Negeri 1 Tigalingga in the 2019/2020 academic year, consisting of 5 classes, namely class X MIA1, class XMIA2, class XMIA3, class XMIA4, class X MIA5. This study aims to determine how learning with the cooperative think pair share model and scientific approach should be towards students' abilities in understanding concepts and solving problems in exponent number operations in class X. The results of the study indicate that the design of the learning model that has been designed is good for use. Based on Table 4.8, the results of tcount = 10.002 and ttable = 1.67 (tcount> ttable) which means Ha2 is accepted. Thus, it can be concluded that learning with the cooperative Think Pair Share model is better than the scientific approach to understanding concepts in exponent number operations in class X of SMA Negeri 1 Tigalingga in the 2019/2020 academic year. Keywords: Creative Problem Solving, Concept Understanding
Perbandingan CD4 HIV –TB Paru Sebelum dan Sesudah ARV dan OAT Cesia, Trivania; Hasibuan, Pantas; Silaen, Johan Christian
Jurnal Visi Eksakta Vol. 3 No. 2 (2022): Jurnal Visi Eksakta : Edisi Juli
Publisher : LPPM Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51622/eksakta.v3i2.2722

Abstract

Human Immunodeficiency Virus (HIV) is a viral infectious disease that attacks the immune system or white blood cells (lymphocytes). HIV, which belongs to the Retroviridae family, is lymphatic, which can damage the specific immune system, namely T-helper lymphocytes or Cluster of Differentiation 4 (CD4). The CD4 count is normal when it is 500–1400 cells/mm3, which is usually the determinant of whether a patient is infected with HIV or not. This study aims to assess the comparison of CD4 counts in HIV-TB patients before and after ARV and OAT treatment at Dr. Pirngadi Medan City. Observational analysis research with a cross-sectional design was conducted at RSUD Dr. Pirngadi Medan City in September 2022. The sample for this study was 20 patient records from the medical records of RSUD Dr. Pirngadi, Medan City. The data were analyzed using an unpaired t-test. The results of the study showed that the most HIV-TB pulmonary  patients at RSUD Dr. Pirngadi Medan City were aged 36-45 years (50.0%). The majority of male patients (90.0%) and the domicile of most patients in Medan City are in the Medan Tembung sub-district (15.0%). The results of the unpaired t-test obtained a p-value of 0.022, meaning that there was a significant difference between the CD4 count before and after ARV and OAT treatment in HIV-TB patients at RSUD Dr. Pirngadi Medan City. There were significant differences in CD4 counts before and after ARV and OAT treatment in HIV patients with pulmonary TB co-infection at Dr. Pirngadi, Medan City.
PEMBELAJARAN DENGAN MODEL KOOPERATIF THINK PAIR SHARE (TPS) DAN PENDEKATAN ILMIAH TERHADAP KEMAMPUAN KONEKSI DAN KOMUNIKASI MATEMATIS PESERTA DIDIK PADA MATERI PERSAMAAN KUADRAT DIKELAS X SMA NEGERI 2 DOLOG SANGGUL T.P 2019/2020 Pardosi, Fredika Damawati
Jurnal Visi Eksakta Vol. 3 No. 2 (2022): Jurnal Visi Eksakta : Edisi Juli
Publisher : LPPM Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51622/eksakta.v3i2.2783

Abstract

This research is a quasi-experimental type of research. Because, quasi experiments use all subjects in the study group (intract group) to be given treatment, not using subjects taken randomly. The sample in this study were Class X students of SMA Negeri 2 Doloksanggul in the 2019/2020 academic year. The sample withdrawal used in this study is using simple random sampling technique. This study aims to determine the Think Pair Share (TPS) model, so that it can encourage and inspire students to be able to understand, apply, and develop rational and objective thinking patterns in responding to substance or learning material. The results showed that the design of the learning model that had been designed was good for use. Based on the summary in table 4.14, the value of tcount = 1.699 and ttable = 1.693 was obtained. it means that tcount> ttable, then Ha is accepted or H0 is rejected, so it can be concluded that learning with the cooperative think pair share model is better than the scientific approach to students' mathematical communication skills on the material of quadratic equations in Class X SMA Negeri 2 Doloksanggul T.P. 2019/2020.
PENGARUH PENDEKATAN PEMBELAJARAN PEMECAHAN MASALAH TERHADAP KEMAMPUAN PENALARAN DAN KOMUNIKASI MATEMATIS PESERTA DIDIK MATERI SPLDV DIKELAS X SMA SWASTA YAPIM PANDAN T.P 2019/2020 Sitinjak, Juli Desiana
Jurnal Visi Eksakta Vol. 4 No. 2 (2023): Jurnal Visi Eksakta : Edisi Juli
Publisher : LPPM Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51622/eksakta.v4i2.2786

Abstract

This research will be conducted at Yapim Pandan Private High School. Population is all data that concerns us in a scope and time that we determine. The purpose of this study was to determine the effect of the problem-solving learning approach on students' mathematical reasoning and communication skills on SPLDV material. Where the hypothesis of this study is that there is a significant effect of the problem-solving learning approach on students' mathematical reasoning and communication skills in SPLDV material in class X SMA Swasta Yapim Pandan. To achieve this goal, researchers first conducted a pre-test with the aim of knowing the initial ability of the experimental class (X IPA 1) and the control class (X IPA 2). The results showed that the design of the learning model that had been designed was good to use. By looking at the tcount value, it is concluded that there is a significant effect of the problem solving learning approach on students' mathematical reasoning and communication skills on SPLDV material in Class X SMA Swasta Yapim Pandan T.P 2019/2020. These results indicate that learning mathematics using a problem- solving learning approach is better than the conventional learning model on students' mathematical reasoning and communication skills on SPLDV material in Class X SMA Swasta Yapim Pandan T.P 2019/2020.
HUBUNGAN PELAYANAN TENAGA KESEHATAN DENGAN KEPATUHAN MINUM OBAT PADA PASIEN TUBERKULOSIS MULTIDRUG-RESISTANT DI RSUP H.ADAM MALIK MEDAN Siringoringo, Mariana; Gurning, Poltak Poida Berliana
Jurnal Visi Eksakta Vol. 4 No. 2 (2023): Jurnal Visi Eksakta : Edisi Juli
Publisher : LPPM Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51622/eksakta.v4i2.2787

Abstract

The success of MDR-TB treatment is influenced by medication adherence. Several factors disrupt medication adherence. One of the influencing factors is health workers as people who educate by providing information about TB-MDR and providing motivation so that patients are not bored with treatment.This study aims to determine the relationship between health worker services and adherence to taking medication in MDR-TB patients at H. Adam Malik General Hospital, Medan. This is a definite analytic study with a cross-sectional design conducted in September 2022 using a total sampling technique. Data analysis used the Chi-square test. From the 60 questionnaires that were successfully collected, data were obtained from 51 respondents (85%) with a high level of medication adherence, 55 respondents (91.7%) stated that the services of health workers were good educators, and as many as 55 respondents (91.7 %), noted that the benefits of health workers are good educators. The Chi-square test analysis revealed that the values of p = 0.003 and p = 0.028 indicate that there is a relationship between the level of adherence to medicine among MDR-TB patients and the services of health workers as educators and motivators. Good health worker services are expected to increase medication adherence and minimize the incidence of MDR- TB.
KORELASI CRP DENGAN HEMOKONSENTRASI DAN NILAI TROMBOSIT PADA ANAK DENGAN DBD DAN DD Maduwu, El Yoenay Ivanema; Silaen, Johan Christian; Simaremare, Ade Pryta
Jurnal Visi Eksakta Vol. 4 No. 2 (2023): Jurnal Visi Eksakta : Edisi Juli
Publisher : LPPM Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51622/eksakta.v4i2.2791

Abstract

Dengue is a disease commonly found in tropical and subtropical regions, with its main vector of transmission being the Aedes aegypti mosquito. Common symptoms experienced by dengue patients include fever followed by severe headache, retro-orbital pain, nausea, vomiting, fatigue, and typically a rash due to minor bleeding. In acute infections, CRP is often used to assess disease activity causing inflammation and can be one of the inflammatory biomarkers in dengue patients. To examine the correlation between CRP levels, hemoconcentration, and platelet count in children diagnosed with Dengue. This study is an observational analytical study using a cross-sectional approach and data collection through consecutive sampling with a total sample size of 60 individuals. In this study, there were 60 pediatric patients diagnosed with Dengue Hemorrhagic Fever (DHF) and Dengue Fever. Most of 34 patients (56.7%) were male, while 26 patients (43.3%) were female. The majority of DHF and Dengue Fever patients were aged between 5 and 11 years (63.3%). The Chi-Square test analysis between CRP and hematocrit showed p=0.486. The Chi-Square test analysis between CRP and platelet count showed p=0.042 (p<0.005). CRP has no correlation with hemoconcentration, but correlate with trombositopenia level in pediatric patients with Dengue Hemorrhagic Fever and Dengue Fever.
PENGARUH PENAMBAHAN PROBIOTIK STARBIO DALAM RANSUM TERHADAP LAJU DIGESTA, BOBOT HATI DAN BOBOT USUS BURUNG PUYUH (COTURNIX COTURNIX JAPONICA). Lumbantoruan, Mangonar; Siburian , Sedyono Cipto Anthonius
Jurnal Visi Eksakta Vol. 4 No. 2 (2023): Jurnal Visi Eksakta : Edisi Juli
Publisher : LPPM Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51622/eksakta.v4i2.2793

Abstract

Sedyono Cipto Anthonius Siburian, 2020. "Addition of Starbio Probiotics in the Ration to Digesta Rate, Heart Weight and Quail Intestine Weight (Coturnix coturnix japonica) under the guidance of Mr. Ir. Mangonar Lumbantoruan, MS as the first supervisor and Mr. Prof. Dr. Ir. Hasan Sitorus, MS as the second supervisor. This research has been carried out in Porlak Simalingkar B Field, Medan Tuntung District, Medan, which took place from August to October 2019. This study aims to determine the effect of adding starbio probiotics in the ration to Digesta Rate, Heart Weight and Quail Intestine Weight (Coturnix coturnix japonica ). The design used in this study was a Completely Randomized Design (CRD) with 5 treatments and 4 replications where each repetition consisted of 200 quails with treatments namely P0 (0 gram Starbio), P1 (2 gram starbio), P2 (4 gram starbio) ), P3 (6 grams of starbio) and P4 (8 grams of starbio) where digesta rate sampling is done on the 20th day and 35th day also 80 liver quail and intestinal weights were taken at 8 weeks. The results showed that the administration had no significant effect on digesta rate, liver weight and bowel weight. The conclusion is the need to increase the level of starbio probiotic administration to maximize the performance of the quail's digestive tract.
GAMBARAN PERILAKU PENCEGAHAN COVID-19 PRE VAKSINASI I PADA MASYARAKAT DI RSUP H. ADAM MALIK
Jurnal Visi Eksakta Vol. 5 No. 2 (2024): Jurnal Visi Eksakta : Edisi Juli
Publisher : LPPM Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51622/eksakta.v5i2.2794

Abstract

Coronavirus Disease 2019 (Covid-19) is an infectious disease of the respiratory tract caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) which is a new type of coronavirus that has never been previously identified in humans. One possible way to prevent the wider spread of the Covid-19 pandemic is by vaccination and it is still supported by the implementation of health protocols or behavior to wear masks, wash hands, keep distance, stay away from crowds and reduce mobility. This study aims to determine the description of preventive behavior before the first Covid-19 vaccination in the community at RSUP H. Adam Malik. This research is a type of descriptive research. With the number of samples obtained 200 samples were assessed by distributing using a questionnaire. As much 171 people (85.5%) had bad behavior in the act of keeping a distance, as many as 132 people (66%) had bad behavior in the act of wearing a mask, as many as 167 people (83.5%) had bad behavior in the act of washing hands, as many as 184 These people (92%) had bad behavior in the act of avoiding crowds, as many as 117 people (58.5%) had bad behavior on the act of reducing mobility. Based on the results of the research and discussion, a description of preventive behavior before the Covid-19 vaccination I in the community at H. Adam Malik Hospital showed that more than half of them behaved badly towards Covid-19 prevention behavior.
HUBUNGAN PERSONAL HYGIENE DENGAN PEDIKULOSIS KAPITIS PADA ANAK ASRAMA PUTRI SANTA LUSIA Habeahan, Kriskayanti; Sipayung, Novreka Pratiwi; Saragih, Rini Amanda C.; Gurning, Poltak Poida B.
Jurnal Visi Eksakta Vol. 5 No. 2 (2024): Jurnal Visi Eksakta : Edisi Juli
Publisher : LPPM Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51622/eksakta.v5i2.2795

Abstract

Pediculosis capitis is an infection of the skin and scalp hair caused by infestation of Pediculus humanus var capitis. This pediculus is ectoparasite that lives in the human head bye sucking the blood to survive. Personal hygiene is the risk factor for the pediculosis capitis. This study aims to determine the relationship of personal hygiene level with capitic pediculosis incidence of the female dormitory children of Santa Lucia Sei Rotan, district Percut Sei Tuan. The design used in this study was an observational analytic capproach cross sectional. The subject on this study were all of the children who were registered in the Santa Lucia dormitory, Sei Rotan, disctrict Sei Tuan. The technique used in this study are purposive sampling and Chi- square test data analysis. Collecting data through filling out questionnaires and direct examination of respondents. The results of this study showed that 36 children (58.1%) suffered from pediculosis capitis, and children with good personal hygiene as many as 6 people (27.3%) suffered from pediculosis capitis, while in children with poor personal hygiene as many as 30 people (75%) suffers from pediculosis capitis. Chi-square test results found p = 0.000 value. There is a relationship between personal hygiene and the incidence of the Pedicolosis in the female dormitory children of Santa Lucia Sei Rotan, district Percut Sei Tuan.

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