PERBEDAAN KEMAMPUAN DAYA TOLAK MINYAK ATSIRI BUNGA MELATI (Jasminum sambac) DAN DAUN SElASIH (Ocimum basilicum) SEBAGAI REPElEN NYAMUK Aedes aegypti

2013 ◽  
Vol 11 (1) ◽  
Author(s):  
Meilina Yuhanita Dewi ◽  
Koerniasari . ◽  
Irwan Sulistyo

Dengue fever is an infectious disease caused by dengue virus and is transmitted by Aedesaegypti and Aedes albopictus. In the year 2010 there had been 150.000 cases in Indonesia and thenumber of deaths was 1317. Transmission of this disease can be prevented using plant essentialoils to be applied as repellents. This study was aimed at investigating the differences betweenjasmine essential oil (Jasminum sambac) and leaf basil (Ocimum basilicum) as repellents againstAedes aegypti mosquito.This is a quasi-experimental study using a non-randomized control group pretest-posttestdesign. Subjects were female Aedes aegypti mosquitoes, 25 mosquitoes on each test. Thematerials used were jasmine flowers essential oil at 40% concentration and basil leaves essentialoil at 90% concentration. As much as 10 replications were performed during the study.Independent SamplesT Test was carried out for analyzing the data.The average number of mosquitoes that came in contact with human hand that had beengiven jasmine flowers essential oil at 40% concentration were 3 mosquitos and basil leavesessential oil at 90% concentration was one mosquito. There was no significant difference betweenthe number of Aedes aegypti mosquitoes that come in contact with human hand applied withjasmine flowers essential oil at 40% concentration and basil leaves essential oil at 90%concentration (p =0.000; 0=0. 05).The conclusion was 90% concentration of essential oils of basil leaves, having 3.32%linalool as an active ingredient had a better ability as a repellent against Aedes aegypti comparedto jasmine flowers essential oil at 40% concentration which has 2.9% linalool as an activeingredient. Essential oil of basil leaves can be applied as a substitute for synthetic chemicalrepellent topically every 8.5 hours.Keywords: jasmine essential oil, basil leaf; Aedes aegypti

2021 ◽  
Vol 10 (17) ◽  
pp. e228101724733
Author(s):  
Kelly Alievi ◽  
Giovana Tamara Capoani ◽  
Maike Buzatto ◽  
Daniela Miorando ◽  
Patrícia Zanotelli Serpa ◽  
...  

The Aedes aegypti is the main vector of the transmission of diseases such as dengue, yellow fever, Chikungunya, and Zika. The agents used for the control of mosquito involve the use of synthetic compounds, which may cause toxicity and contamination environmental. Aiming to test the effectiveness of natural products, the aim of this study was to evaluate the larvicidal and repellent activity of extracts of Ateleia glazioveana Baill. (timbó) and essential oil of Ocimum basilicum L. (manjericão), against A. aegypti. The activities of hydroalcoholic (HEA) and dichloromethane (DEA) extracts from A. glazioveana against A. aegypti larvae were assessed after exposure for 24, 48, and 72 h, using water and Bacillus thuringiensis israelensis as negative and positive controls, respectively. For repellent evaluation, we investigated the sting attempts of A. aegypti in response to the application of HEA- and DEA-based body creams (5%), as well as an alcoholic spray based on the essential oil from O. basilicum. The repellency of these preparations was compared with negative (vehicle) and positive (DEET) controls. Although HEA showed no apparent larvicidal activity, DEA at concentrations of 150 to 500 mg/ml showed high larvicidal potential after 24 h, compared to the negative control group (p < 0.001). Moreover, the DEA-based cream and the alcoholic spray of O. basilicum based essential oil showed higher repellency compared with the vehicle (84.5% and 70.5%, respectively). Accordingly, it is possible to infer that extracts and preparations of A. glazioveana and O. basilicum exhibit larvicidal and repellent activity against A. aegypti.


2021 ◽  
Vol 14 (3) ◽  
pp. 187-195
Author(s):  
Setiawandari Setiawandari ◽  
Istiqomah Istiqomah ◽  
Marquita Da Silva Ximenes

DTaP vaccination causes an increased body temperature or fever in most infants. There are pharmacological or non-pharmacological efforts to reduce fever in infants post-DTaP immunization. In addition, shallots are a family medicinal plant in Indonesia commonly used to reduce fever. There should be innovation in the dosage form of shallots so their use is more effective and efficient. This study analyzes the effect of shallot essential oil on fever reduction in infants post-DTaP vaccination. It was a quasi-experimental research design, with one group pre and post-test design. The population of this research was all infants aged 1-12 months who were enrolled in the infant cohort in 2020 at Independent Midwifery Practice (IMP) Istiqomah from May to August 2020. Meanwhile, there were 20 samples by accidental sampling. The research instruments were shallot extract oil, a digital thermometer, and an observation sheet. The data analysis used the Repeated Measures Anova test. The results showed that the mean body temperature before immunization was 36.57 degrees Celcius, while after the experiment was 36.9 degrees Celcius. The statistical test results value ρ = 0.000. There was a significant difference in the mean body temperature from time to time in infants with shallot essential oil administration. This study concludes that shallot essential oil reduces fever in infants post-DTaP immunization. Further research should use a control group, more significant samples, and inclusion criteria limitation.


2020 ◽  
Vol 9 (2) ◽  
pp. 299-310
Author(s):  
Yoga Setiawan ◽  
Erlina Prihatnani

AbstrakSetiap model pembelajaran kooperatif memiliki karakteristik dalam menerapkan enam prinsip pembelajaran kooperatif termasuk model Team Assisted Individualization (TAI) dan Numbered Heads Together (NHT). Tujuan penelitian ini untuk mengetahui manakah yang menghasilkan hasil belajar yang lebih baik diantara (1) model TAI dan NHT, (2) tingkat kecerdasan interpersonal, dan (3) interaksi model pembelajaran TAI dan NHT dengan kecerdasan interpersonal. Populasi penelitian adalah seluruh siswa kelas X SMA N 1 Salatiga Tahun Ajaran 2018/2019 (384 siswa). Melalui teknik cluster random sampling diperoleh 30 siswa kelas X IPS 1 sebagai kelas eksperimen 1 dan 34 siswa kelas X IPS 2 sebagai kelas eksperimen 2 dengan perbedaan perlakuan dalam pembelajaran trigonometri. Penelitian eksperimen semu ini menggunakan randomized control group pretest-postest design. Uji hipotesis menyimpulkan (1) hasil belajar siswa dengan model TAI secara signifikan lebih baik daripada NHT, (2) tidak ada perbedaan hasil belajar yang signifikan dari tingkat kecerdasan interpersonal yang berbeda, (3) tidak terdapat interaksi antara model pembelajaran dengan kecerdasan interpersonal terhadap hasil belajar. AbstractEach type of cooperative learning model has different characteristics in applying 6 principles of cooperative learning, including TAI (Team Assisted Individualization) and NHT (Numbered Head Together) type models. This study aimed to find out: (1) which learning outcomes are better between students using the TAI or NHT models, (2) which learning outcomes are better between students with high, medium and low interpersonal intelligence levels, (3) is there any correlation between TAI and NHT learning models with interpersonal intelligence on student learning outcomes. The population in this study were all students of X grade at SMA N 1 Salatiga in the Academic Year 2018/2019 (384 students). Through assembling random sampling techniques obtained students of class X IPS 1 (30 students) as experimental class I and students of class X IPS 2 (34 students) as experimental class II with different treatment in learning mathematics on trigonometry material. This quasi-experimental research used a randomized control group pretest-posttest design. Hypothesis test results concluded that (1) student learning outcomes with the TAI model were significantly better than student learning outcomes with the NHT model, (2) there was no significant difference between student learning outcomes of different levels of interpersonal intelligence, (3) there were no interactions between models learning with interpersonal intelligence on student learning outcomes.


Author(s):  
Iwan Setia Kurniawan ◽  
Fransisca Sudargo Tapilouw ◽  
Topik Hidayat ◽  
Wawan Setiawan

Smartphone applications are developing so rapidly with increasingly sophisticat-ed features. However, smartphone applications widely used to fulfill social needs rather than being used to support learning. The classification skills are essential possessed by students to facilitate the learning of various species. By integrating technology, students expected to be able to have good classification skills. This study aims to improve the classification ability of prospective biology teacher students by using the i-Bird application in the Zoology Vertebrate course. The i-Bird application designed and created specifically for studying Aves. This study uses a quasi-experimental method with a randomized control group pretest and posttest design. Involving 82 students divided into two groups. 44 students as an experimental class using the i-Bird app on smartphones (SA) and 38 students as a control class using a bird's guidebook (GB). The results showed the classifica-tion ability of SA students (N-gain =0 .54), and GB (N-gain = 0.44) showed a significant increase in the medium category. The parametric test using a t-test (p-value = .038) showed a significant difference between SA and GB. Thus it can be concluded that technological progress can be used in learning if it is well de-signed. Implications of smartphone applications can develop in future learning, of course, must be designed according to needs.


Ta dib ◽  
2021 ◽  
Vol 24 (1) ◽  
pp. 46
Author(s):  
Lufri Lufri ◽  
Sintia Elmanazifa ◽  
Azwir Anhar

Communication skills need to be improved during learning. However, the learning process in schools has not fully implemented learning models that can improve students' communication skills. Learning in schools is still teacher-centered, lack of use of Information Technology (IT), students’ inactivity, and their lack of interest in learning in class. The solution is to apply the PBL learning model in IT interventions. The research objective was to develop students' communication skills. The instrument used is was a rubric to assess communication that had been validated by experts. The research design was Randomized Control Group Posttest Only Design. This type of research is a quasi-experimental. The data were analyzed by using  the two-way ANOVA test. The results showed that there was a significant difference between the PBL learning model and the information technology intervention on the communication skills of students with an average score of 64.27% in the experimental class and 57.70% in the control class and a significant value of 0.00


2020 ◽  
Vol 2 (1) ◽  
pp. 32
Author(s):  
Ahmad Farham Majid ◽  
Ismail Ismail ◽  
Mardhiah Mardhiah ◽  
Fitriani Nur

AbstrakPenelitian ini bertujuan untuk mengetahui kemampuan komunikasi matematis siswa yang menggunakan metode silih tanya berbantuan kartu model dan metode make a match. Jenis penelitian ini adalah quasi eksperimen dengan desain penelitian non equivalent pretest-posttest control group design. Populasi dalam penelitian ini adalah seluruh siswa kelas VII SMPN 4 Sungguminasa Kab. Gowa berjumlah 351 siswa dan total sampel berjumlah 64 siswa dengan teknik pengambilan sampel purposive sampling. Instrumen yang digunakan dalam penelitian ini adalah tes yang terdiri dari pretest dan posttest dan non tes berupa lembar observasi. Berdasarkan hasil analisis data nilai siswa menggunakan statistik deskriptif rata-rata nilai kemampuan komunikasi matematis siswa yang diajar menggunakan metode silih tanya berbantuan kartu model adalah 86,84 dengan kategori sedang dan yang diajar menggunakan metode make a match adalah 77,78 dengan kategori sedang. Berdasarkan analisis statistik inferensial bahwa terdapat perbedaan yang signifikan antara kemampuan komunikasi matematis siswa yang menggunakan metode silih tanya berbantuan kartu model dengan yang menggunakan metode make a match pada kelas VII SMPN 4 Sungguminasa Kab. Gowa. AbstractThis study aims to determine the mathematical communication ability of students who use card-assisted questions method and make a match method. This type of research is a quasi-experimental research with nonequivalent pretest-posttest control group design. The population in this study were all VII grade students of SMPN 4 Sungguminasa, Gowa Regency with 351 students and a total sample of 64 students with purposive sampling techniques. The instrument used in this study was a test consisting of pre-test and post-test and non-test that is observation sheet. Based on the data analysis results that average the value of students’ mathematical communication skills who were taught using the card-assisted questions was 86.84 in the medium category and those who taught using make a match method were 77.78 in the medium category. The results of inferential statistical analysis that there is a significant difference between the mathematical communication abilities of students who use card-assisted questions and using the make a match method in class VII of SMPN 4 Sungguminasa, Gowa Regency.


2016 ◽  
Vol 9 (9) ◽  
pp. 18
Author(s):  
Rungruedee Chaemsai ◽  
Saowalak Rattanavich

<p>This study compares the English reading comprehension and ethical awareness of 7<sup>th</sup> grade students, when using either a directed reading-thinking activity (DR-TA), or a more traditional approach, involving tales of virtue based on His Majesty the King’s teaching concepts. A randomized control group pretest-posttest design was used for the study, and the data were analyzed using one-way MANOVA and t-tests for dependent samples. The results showed a significant difference in English reading comprehension, and ethical awareness of learning English reading, between both groups at .01 level. Students through the DR-TA method had significantly higher English reading comprehension, and increased ethical awareness, at the .01 level.</p>


2017 ◽  
Vol 19 (2) ◽  
pp. 90-106 ◽  
Author(s):  
Hassan Eslamian ◽  
Seyed Ebrahim Mirshah Jafari ◽  
Mohammad Reza Neyestani

AbstractThis quasi-experimental study investigated the effect of teaching aesthetic skills to faculty members on development of their effective teaching performance through a two-group pretest-posttest design. The sample included 32 faculty members at a major Iranian university who were divided into the experimental (11 participants) and control groups (21 participants). The experimental group was taught to use aesthetic skills in the teaching and learning processes; however, no intervention was applied to the control group. To evaluate the effective teaching performance of the faculty members, a tailor-made questionnaire was used in two pretest and posttest stages, where randomly chosen students were asked to express their opinions about the faculty membersí performance. The sample size of the students was 1096 in the pretest stage and 935 in the posttest stage. Paired t-test results showed that there was no significant difference between the mean effective teaching scores of the faculty members in the control group in the pretest stage and in the posttest stage. However, the mean effective teaching scores of the faculty members in the experimental group were found to be significantly higher in the posttest. In addition, although there was no significant difference between the mean effective teaching scores of the two faculty groups in the pretest, faculty members in the experimental group outperformed their counterparts in the control group. Based on the findings, applying aesthetic skills by faculty members in the teaching and learning processes can pave the way for sustainable development of their effective teaching performance. Therefore, faculty members are recommended to acquire the required knowledge and skills to better use aesthetic skills in the teaching process.


2021 ◽  
Vol 16 (2) ◽  
pp. 827-846
Author(s):  
Nthabiseng Mosese ◽  
Ugorji I. Ogbonnaya

Making connections between the representations of trigonometric functions and an interpretation of graphs of the functions are major challenges to many students. This study explores the effectiveness of the GeoGebra on grade 12 students’ success in making connections between the representations of trigonometric functions and the interpretation of graphs. A non-equivalent control-group pre-test post-test quasi-experimental design was used. The sample of the study consisted of sixty-one grade 12 students from two schools. The results showed that there was a statistically significant difference between the mean achievements of the experimental group and the control group on making connections between representations of trigonometric functions, and on analyses and interpretations of representations of trigonometric functions, in favour of the experimental group. This study extends the findings of previous studies on the effectiveness of dynamic mathematics software on students’ learning of representations and interpretation of graphs of trigonometric functions.            Keywords: GeoGebra, functions graphs, Trigonometric functions


2019 ◽  
Vol 11 (1) ◽  
pp. 58
Author(s):  
Ulfah Sofindra Syahidatunnisa ◽  
Holil M Par'i ◽  
Fred Agung Suprihartono ◽  
Fred Agung Suprihartono ◽  
Rr. Nur Fauziyah ◽  
...  

One of the factors that influence Kadarzi's achievement is the knowledge and attitudes of the toddler's mother. This study aims to determine the effect of counseling using backsheet media on the knowledge and attitudes of toddlers' mothers about Kadarzi in the Cipeundeuy Health Center District of West Bandung Regency. The research design used was quasi-experimental with a pre-post test control group design model with a total sample of 28 people each for the experimental group and the control group. The experimental group was given an intervention in the form of counseling using flipchart media, while the control group was given an intervention in the form of counseling using leaflet media. The results obtained from the Wilcoxon test in the experimental group and the t-dependent test in the control group were changes in the increase in knowledge and attitude scores in the experimental group and the control group after intervention (p <0.005). The results of the Mann-Whitney test showed no significant difference between knowledge and attitude scores in the experimental group and the control group (p> 0.005). It is better to do further research related to Kadarzi's behavior so that the application of the Kadarzi indicator can be monitored so that it can describe the results of attitudinal changes, and to increase Kadarzi's knowledge and attitudes to toddler mothers.


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