scholarly journals Mosquito Larvacidal Activity of Zingiber montanum Rhizome Extract Against Aedes aegypti larvae

Author(s):  
Dwi Sulistia Ningrum ◽  
Siwi Pramatama Mars Wijayanti ◽  
Kuswanto Kuswanto

Aedes aegypti is the main vector which transmits Dengue virus as causing agent of Dengue Haemmorhagic Fever (DHF). Chemical control of Ae. aegypti have an impact on the environment and humans, also burden a high cost. One of the efforts to reduce the negative impact of synthetic insecticide, which is to find out alternative natural insecticide from plant-based insecticides. The purpose of this research is to determine the killing power of the rhizome bangle extract to Ae. aegypti larvae. This research was a quasi-experimental design with post test only control group design. The concentration of extract rhizome bangle used were 0%; 0.125%; 0.25%; 0.5%; 0.75% and 1%. The mosquito sample used in this study were instar III of Ae. aegypti larvae as many as 600 larvae. Data analysis used univariate and bivariate (probit and Kruskal Wallis test). The results showed that there was an effect of the concentration of extract rhizome bangle against the mortality of Ae. aegypti larvae with p=0,002 (p<0,05). Extract rhizome bangle effectively killed Ae. aegypti larvae with LC50 and LC90 were 0.148 % and 0.338 %, with the most effective concentration is 1%. Based on this research, extract rhizome bangle has a larvicidal effect on Ae. aegypti, so it can be used as an alternative method to minimize the usage of chemical larvicides that easily applied by the community.

2018 ◽  
Vol 2 (2) ◽  
pp. 331-341
Author(s):  
Gita Dheasabel ◽  
Muhammad Azinar

The mosquito of Aedes aegypti is the vector of the dengue virus can transmit the disease through bites DBD. The popular control in a society is by using chemical insecticides. The use of chemical insecticides can lead to continuous resistance of mosquitoes. The efforts to reduce the negative impact of chemical insecticides can be controlled with an insecticides plant. This control can be done by using materials that came from plant, one of them namely bitter melon (Momordica charantia L). The purpose of this research is to analyze the kill power of  bitter melon extracts against the mosquito of Aedes aegypti. This type of research is pure experiment with the design of the post test only control group design with five variants of extract concentration of 13%, 19%, 27%, 40%, and 59% with five repetitions. A kruskal wallis test result showed a difference in thye average number of deaths the mosquito of Aedes agypti in various concentration of bitter melon extract, indicated by the value of significance p=0,001 (p<0,05). The probit analysis obtained LC50 at 24,41% concentration and LC90 at 70,54% concentratin. The summary of this research, namely bitter melon extracts has the effect of insecticide against the mosquito of Aedes aegypti. Keywords: Aedes aegypti, insecticide, bitter melon


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.


2017 ◽  
Vol 6 (2) ◽  
pp. 440
Author(s):  
Kharisma Putra D ◽  
Hasmiwati Hasmiwati ◽  
Arni Amir

Salah satu upaya untuk mengurangi kasus DBD adalah dengan pengendalian vektor DBD dengan larvisida. Temephos merupakan salah satu insektisida yang telah digunakan lebih dari 30 tahun dan berfungsi mengendalikan larva vektor. Penggunaan temephos yang tidak sesuai aturan dapat menyebabkan penurunan kerentanan pada vektor DBD.  Tujuan penelitian ini  adalah untuk  menilai  status  kerentanan larva Aedes aegypti di tiga kecamatan di Kota Padang. Penelitian ini menggunakan post  test  only  with  control  group design. Telur diambil dan dipelihara di laboratorium hingga mencapai larva instar III/IV. Uji kerentanan untuk temephos dilakukan berdasarkan standar WHO. Hasil penelitian menunjukkan pada Kecamatan Kuranji, kematian larva pada konsentrasi 0,005 mg/L sebesar 10%, 0,01 mg/L sebesar 45%, 0,02 mg/L sebesar 86%, dan pada konsentrasi 0,03 mg/L sebesar 100%. Pada Kecamatan Koto Tangah, kematian larva pada konsentrasi 0,005 mg/L sebesar 24%, 0,01 mg/L sebesar 48%, 0,02 mg/L sebesar 99%, dan pada konsentrasi 0,03 mg/L sebesar 100%. Pada Kecamatan Padang Timur pada konsentrasi 0,005 mg/L didapatkan kematian larva sebesar 12%, pada 0,01 mg/L sebesar 43%, pada 0,02 mg/L sebesar 99%, dan pada 0,03 mg/L sebesar 100%. Hasil uji One way-Anova adalah bermakna dengan nilai p<0,05 pada ketiga kecamatan dan LC99 sedikit diatas 0,02 mg/L. Simpulan penelitian ini adalah status kerentanan Aedes aegypti terhadap temephos di tiga kecamatan berkisar antara rentan dan toleran, belum mencapai resisten sehingga temephos masih dapat digunakan dalam pengendalian vektor DBD.


2022 ◽  
Vol 4 (1) ◽  
pp. 150-156
Author(s):  
M. Ali Maulana ◽  
Yoga Pramana ◽  
Mardhia Mardhia

Penderita penyakit Covid-19 terus bertambah di seluruh dunia hingga saat ini. Tercatat pada Oktober 2020 terlaporkan sekitar 20.369.778 kasus dan 948.795 kasus meninggal dunia. Kejadian di Indonesia hingga saat ini penderita yang terkonfirmasi positif pada oktober 2020 tercatat 344.749 orang. Pada kondisi memburuk seperti ini, WHO telah mendorong negara-negara  untuk mengembangkan vaksin untuk menangani penyakit covid-19 ini. Keresahan masyarakat mengenai informasi vaksin yang diterima dapat mempengaruhi persepsinya terhadap vaksin covid-19, Pendekatan promosi Kesehatan berbasis keluarga bisa menjadi solusi untuk memberikan informasi terbaik tentang vaksin covid-19 di masyarakat, khususnya pada lingkup kecil di tiap keluarga. Adapun tujuan yang ingin dicapai dalam penelitian yaitu menganalisis pengaruh Pendidikan Kesehatan berbasis keluarga terhadap pengetahuan dan sikap masyarakat tentang vaksin covid-19. Penelitian ini adalah penelitian kuantitatif menggunakan desain quasi experimental dengan pendekatan Pre and Post Test dengan metode nonequivalent control group design melibatkan 100 responden dari masyarakat di wilayah kecamatan pontianak barat – kalimantan barat, menggunakan instrumen materi edukasi dan kuesioner pengetahuan dan sikap tentang vaksin covid-19. Hasil penelitian membuktikan bahwa edukasi berbasis keluarga berpengaruh lebih efektif terhadap peningkatan pengetahuan dan sikap masyarakat terhadap vaksinasi Covid-19 dibandingkan dengan edukasi yang diberikan secara publik atau menggunakan media massa


2018 ◽  
Vol 6 (3) ◽  
Author(s):  
I Gede Agunk Teddy Pratama ◽  
Made Budiawan ◽  
I Nyoman Sudarmada

Penelitian ini bertujuan untuk mengetahui pengaruh pelatihan three corner drill terhadap kelincahan dan power otot tungkai. Jenis penelitian adalah quasi experimental dengan rancangan the non-randomized pretest-posttest control group design. Subjek penelitian yang digunakan siswa putra peserta ektrakurikuler sepak bola SMPN 2 Pekutatan. Data post-test kelincahan dan power otot tungkai pada kelompok perlakuan dan kelompok kontrol dianalisis dengan uji-t independent pada taraf signifikansi (α) 0,05 dengan bantuan program SPSS 16.0. Berdasarkan hasil uji-t independent didapatkan hasil : (1) untuk variabel kelincahan, hasil perbandingan kelompok perlakuan dan kontrol didapatkan nilai thitung = -2,948 , dengan nilai signifikansi 0,009, (2) untuk variabel power, hasil perbandingan kelompok perlakuan dan kontrol didapatkan nilai thitung = 3,176, dengan nilai signifikansi 0,005. Nilai signifikansi hitung lebih kecil dari nilai α (Sig < 0,05), dengan demikian hipotesis penelitian “pelatihan three corner drill berpengaruh terhadap peningkatan kelincahan dan power otot tungkai pada siswa putra peserta ektrakurikuler sepak bola SMPN 2 Pekutatan” diterima. Dari hasil analisis data dan pembahasan disimpulkan bahwa : (1) Pelatihan three corner drill berpengaruh terhadap peningkatan kelincahan pada siswa putra peserta ektrakurikuler sepak bola SMP Negeri 2 Pekutatan (2) Pelatihan three corner drill berpengaruh terhadap peningkatan power otot tungkai pada siswa putra peserta ektrakurikuler sepak bola SMP Negeri 2 Pekutatan. Kata Kunci : kelincahan, daya ledak, three corner drill The purpose of this research was to find out the effect of three corner drill training toward the increased agility and power muscle of legs. The type of research was a quasi-experimental and the design of research was the non-randomized pretest-posttest control group design. The subjects were man’s student football extracurricular participants of SMPN 2 Pekutatan. Agility and muscle power of legs posttest to the treatment group and the control group were analyzed by independent t-test at significance 0,05 with SPSS 16.0. Based on independent t-test results were showed : (1) to the agility variable, the comparison of the treatment and the control group values obtained t = -2,948, with a significance value of 0,009, (2) to muscle power of legs variable, the comparison of the treatment and the control group values obtained t = 3,176, with a significance value of 0,005. Calculated significance value smaller than the value of 0,05 (Sig < 0.05), thus the research hypothesis "three corner drill training affect the increased agility and muscle power of legs in football extracurricular participants of SMPN 2 Pekutatan " was received. From the analyzed and discussion were concluded that : (1) three corner drill training effect the increased agility in football extracurricular participants of SMPN 2 Pekutatan, (2) three corner drill training effect the increased muscle power of legs in football extracurricular participants of SMPN 2 Pekutatan. keyword : Agility, power, three corner drill


2021 ◽  
Vol 2104 (1) ◽  
pp. 012027
Author(s):  
Indrawati ◽  
I K Mahardika ◽  
J Prihatin ◽  
Supeno ◽  
S Astutik ◽  
...  

Abstract The GI-GI learning model is a combination of the Group Investigation and the Guided Inquiry model. The research aimed to examine the effect of the GI-GI learning model on collaboration and students’ science process skills. The type of research carried out was Quasi-Experimental and used a post-test only control group design and purposive sampling covering four high schools in the Besuki Residency, two classes as the experimental class and the control class. The research instrument used tests, observations, and documentation. The results showed a significant effect of the GI-GI learning model on collaboration and students’ science process skills. This research implies that the GI-GI learning model can condition students to research in groups to interact actively with friends and educators to exchange opinions, knowledge, or experiences, find and solve problems, and hypothesize through investigation, exploration, and discussion outside or inside in class.


2019 ◽  
Vol 5 (2) ◽  
pp. 327
Author(s):  
I Dewa Made Aryananda Wijaya Kusuma

The objective of the study is to identify: (1) the influence of Tabata training from the perspective of “Good” category in preliminary VO2Max level; (2) the influence of Tabata training from the perspective of “Moderate” category in preliminary VO2Max level; (3) the influence of Tabata training from the perspective of “Poor” category in preliminary VO2Max level; and (4) the appropriate preliminary VO2Max level that should be assigned on the Tabata training method. Looking at the objective of the study, the nature of the study is indeed quantitative while the method that had been implemented is the quasi-experimental research with non-equivalent (pre-test and post-test) control group design. Within the conduct of the study, the number of the sample that had been involved was 60 respondents and these samples were gathered by means of quota sampling. Then, the data that had been gathered were analysed by using the paired sample t-test in order to test the hypotheses that had been assigned. The results of the study show that the Tabata training method is appropriate to be assigned in the “Moderate” category of preliminary VO2Max level. Departing from the conclusion, it might be implied that the study might be conducted further by adding the number of the sample and by adding the different type of samples.


2018 ◽  
pp. 10-15
Author(s):  
Alfina Baharuddin

The high number of cases of dengue fever in Indonesia, so it needs to be held vector control effort. Moringa is used as a natural anti-mosquito capable of supplying larvae. This is because there are compounds of steroids, triterpenoids, alkaloids, saponins, flavanoids, and tannins in the stem of moringa. The type of research used was experimental with post test only control group design method. The data were collected by counting the number of Aedes aegypti instar III larvae that died in each type of salinity concentration during the exposure time. The experiment was conducted 4 times, Observation, calculation and recording of the number of live and dead larvae every 24, 32, 40 and 48 hours after treatment. The data that has been collected and analyzed is then presented in tabular and narrative form. At the concentration of 3% in the Moringa leather bark estrants at the time of 24 hour measurements in each treatment of 1 (3), 2, 3, 3 (3) treatment, 4 (1) treatment with an average percentage of larva death 27 , 5%. The concentration of 3% extract of Moringa leaf bark effectively kills Aedes aegepty larvae by 45% within 48 hours. Concentration of 3.5% extract of Moringa leaf bark effectively kills Aedes aegepty larva by 45% within 24 hours. The concentration of 4% extract of Moringa leaf bark effectively kills Aedes aegepty larva by 67.5% within 24 hours. The effective exposure time of 24 hours resulted in the death of 67.5% Aedes aegypti.  


2020 ◽  
Vol 3 (1) ◽  
pp. 15-27
Author(s):  
I Wayan Widiana ◽  
I Made Suarjana

This study was aimed at determining the differences in the dimensions of cognitive processes between groups of students who are taught with project-based trying learning activities and groups of students who are taught with conventional learning activities. This research is a quasi-experimental study with a post-test only control group design. The population of this study was the fifth-grade students of the 2016/2017 academic year in the Curriculum 2013 Elementary School in Buleleng Regency, which amounted to 326 students. The samples were taken by cluster random sampling which amounted to 60 students. The data collected in this study were the results of the dimensions of cognitive processes by using 20 multiple-choice tests and 5 item essays on the ecosystem theme. The hypothesis was tested using inferential t-test statistics. The results show that there are significant differences in the dimensions of cognitive processes between groups of students who were taught with project-based trying activities and groups of students who were taught using conventional learning activities. The optimizing project-based trying activities has a positive effect on the dimensions of students' cognitive processes.PENGOPTIMALAN AKTIVITAS MENCOBA DENGAN BERBASIS PROYEK UNTUK MENINGKATKAN DIMENSI PROSES KOGNITIF SISWAPenelitian ini bertujuan untuk mengetahui perbedaan dimensi proses kognitif antara kelompok siswa yang dibelajarkan dengan aktivitas pembelajaran mencoba berbasis proyek dan kelompok siswa yang dibelajarkan dengan aktivitas pembelajaran konvensional. Penelitian ini merupakan penelitian quasi eksperimen dengan rancangan penelitian post test only control group design. Populasi dari penelitian ini adalah siswa kelas V Tahun Pelajaran 2016/2017 di SD rintisan Kurikulum 2013 Kabupaten Buleleng yang berjumlah 326 orang. Sampel diambil dengan cara cluster?random sampling yang berjumlah 60 orang. Data yang dikumpulkan dalam penelitian ini adalah hasil dimensi proses kognitif dengan menggunakan tes pilihan ganda sebanyak 20 butir dan esai 5 butir soal pada tema ekosistem. Hipotesis diuji dengan menggunakan statistik inferensial t-test. Hasil penelitian menunjukkan bahwa terdapat perbedaan yang signifikan pada dimensi proses kognitif antara kelompok siswa yang dibelajarkan dengan aktivitas pembelajaran mencoba berbasis proyek dan kelompok siswa yang dibelajarkan dengan aktivitas pembelajaran konvensional Pengoptimalan aktivitas mencoba berbasis proyek berpengaruh positif terhadap dimensi proses kognitif siswa.


2019 ◽  
Vol 3 (1) ◽  
pp. 82
Author(s):  
Fanny Rahmatina Rahim

To help realize UNP's vision towards a research-based university, awareness of Educators is needed to be active in providing innovation in classroom learning such as transforming conventional learning into research-based learning. This aim of this study was to analyze the implementation of research-based learning in Integrated Science courses Class VII in an effort to improve the ability to think critically and creatively. The study used the Quasi Experimental Research method with the design of the Pretest-posttest Control Group Design. The study was conducted in two sample classes obtained from cluster random sampling techniques by providing research-based learning treatment to the experimental class and ordinary learning to the control class. The research data was pre-test and post-test instrument, student response questionnaire and observation sheet during the learning process. With the implementation of research-based learning, the ability to think critically and creatively students of Physics Education FMIPA UNP was expected to be able to increase.


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