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PENGARUH LATIHAN SKIPPING TERHADAP PENINGKATAN CARDIOVASCULAR ENDURANCE PADA ANAK USIA SEKOLAH 10-12 TAHUN DI SDN PLUMBON 02 KECAMATAN SURUH KABUPATEN SEMARANG Silvia Rahmawati; Budiyati Budiyati; Nina Indriyawati
Jurnal Riset Kesehatan Vol 5, No 2 (2016): NOVEMBER 2016
Publisher : Poltekkes Kemenkes Semarang

[THE INFLUENCE OF SKIPPING EXCERSICE TO INCREASED CARDIOVASCULAR ENDURANCE ON SCHOOL AGE CHILDREN 10-12 YEARS IN ELEMENTARY SCHOOL PLUMBON 02 SURUH SUB –DISTRICT SEMARANG REGENCY] The current phenomena, many children and parents who ignore the importance of sports to physical fitness and endurance of the heart. Cardiovascular endurace which will both improve the working abilities of the child with greater intensity and longer without fatigue. The purpose of this research was to describe the influence of skipping exercise to increased cardiovascular endurance on school age children 10-12 years.The type of research used was pre-experimental research designs with one group pre-post test. The sample consists of 21 children of school age 10 – 12 years old. The entire sample was given skipping workouts as much as 8 times within 10 minutes of each meeting and implemented in the morning between 07.00 – 09.00 pm. The implementation of the pre-and post test-test using Rockport Walking Fitness Test to assess cardiovaskular endurance. The results of the analysis of simple paired t-test showed that there is a difference between data pre-and post test-test with p value = 0000. There was an influence of skipping exercise to increased cardiovascular endurance on school age children 10-12 years.

PENGARUH PENGGUNAAN MEDIA PEMBELAJARAN STYROBON TERHADAP KREATIVITAS BERPIKIR DAN HASIL BELAJAR KOGNITIF Silvia Rahmawati; Agus Kamaludin
JURNAL PENDIDIKAN SAINS UNIVERSITAS MUHAMMADIYAH SEMARANG Vol 7, No 2 (2019): JURNAL PENDIDIKAN SAINS UNIVERSITAS MUHAMMADIYAH SEMARANG
Publisher : Pendidikan Kimia Unimus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jps.7.2.2019.20-30

This research aimed to examine the effect of the use of Styrobon learning media on the creative thinking skills and cognitive learning outcomes of 12th grade students on the subject of functional group in chemistry. The type of this research was Quasi Experiment by which the research design was in the form of Non-equivalent Control Group Design. Measurement of students' creative thinking ability used questionnaire data and observation sheets, in which data analysis techniques in questionnaires used nonparametric statistical tests namely Mann-Whitney test and observation sheet data used the score of observation sheet reference score. While the measurement of cognitive learning outcomes of students used pre-test and post-test questions in which data analysis techniques used nonparametric statistical tests namely Mann-Whitney test. Statistical test resulted on the creative thinking skills and cognitive learning outcomes of students obtained the significance level (2-tailed) of 0.049 and 0.044 (both are <0.05). This showed that the use of Styrobon learning media influenced creative thinking skill and cognitive learning outcomes of the students.

A Comparative Study between Extroverted and Introverted Students and Their Speaking Ability Eva Nurmayasari; Silvia Rahmawati
ENGLISH Vol 8, No 2 (2014)
Publisher : Fakultas Keguruan Ilmu Pendidikan Universitas Ibn Khaldun Bogor

Speaking is one of abilities in English learning which is required to communicate one another. Some students usually get the difficulties to speak. On the other hand some other students are active in speaking in their classroom. One of causes of those problems relates to the personality. Based on dimensions of attitude, there are two types of personalities, such as extrovert and introvert personality. This study is limited to find out the comparison between extroverted and introverted students in their speaking ability. This comparative research uses quantitative method; therefore t-test. Questionnaire is used to classify who has extrovert and introvert personality. To measure the speaking ability, this research uses speaking score of speaking in professional context II and speaking for academic purposes. The correct formula of t-test can be chosen toward F-test. The total of two uncorrelated samples are not same, but homogenous, thus this research uses polled variance of t-test formula. From this research, the t-test shows that t-observed is 0,72, while the t-table which ? 5% is 2,021. t-table is higher than t-observed. This result proves that Ho is accepted; there is no difference between extroverted and introverted students toward their speaking ability. It means, there are not any better students in speaking between both extroverted and introverted students.

A Comparative Study between Extroverted and Introverted Students and Their Speaking Ability Eva Nurmayasari; Silvia Rahmawati
ENGLISH Vol 8, No 2 (2014)
Publisher : Fakultas Keguruan Ilmu Pendidikan Universitas Ibn Khaldun Bogor

Speaking is one of abilities in English learning which is required to communicate one another. Some students usually get the difficulties to speak. On the other hand some other students are active in speaking in their classroom. One of causes of those problems relates to the personality. Based on dimensions of attitude, there are two types of personalities, such as extrovert and introvert personality. This study is limited to find out the comparison between extroverted and introverted students in their speaking ability. This comparative research uses quantitative method; therefore t-test. Questionnaire is used to classify who has extrovert and introvert personality. To measure the speaking ability, this research uses speaking score of speaking in professional context II and speaking for academic purposes. The correct formula of t-test can be chosen toward F-test. The total of two uncorrelated samples are not same, but homogenous, thus this research uses polled variance of t-test formula. From this research, the t-test shows that t-observed is 0,72, while the t-table which ? 5% is 2,021. t-table is higher than t-observed. This result proves that Ho is accepted; there is no difference between extroverted and introverted students toward their speaking ability. It means, there are not any better students in speaking between both extroverted and introverted students.

The effect of commercial herbicide and bioherbicide of Ketapang (Terminalia catappa L.) on germination and chlorophyll content of cayenne pepper (Capsicum frutescens L.) Rita Ariyana Nur Khasanah; Silvia Rahmawati
Biogenesis: Jurnal Ilmiah Biologi Vol 11 No 1 (2023)
Publisher : Department of Biology, Faculty of Sci and Tech, Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/bio.v11i1.33881

Herbicides that have less impact on non-target crops are better suited for weed control. The use of a commercial glyphosate-based herbicide (Roundup®) is a farmer's choice for controlling these weeds. The negative effects of glyphosate residues on cultivated crops, environment and human health have led farmers to switch to use bioherbicides. Ketapang (Terminalia catappa L.) leaves have been studied having the potential as bioherbicide but their effects on non-target plant have been less studied. This study aimed to examine the effects of Roundup® and Ketapang leaf extract on germination and chlorophyll content of cayenne pepper as non-target plant. This experimental study was conducted using completely randomized design (CRD) with 3 replications. Cayenne pepper was sown for 14 days. Parameters observed were germination, morphology, weight, and chlorophyll content of cayenne pepper sprouts. The data were analyzed using SPSS ver. 16 and tested with One-Way ANOVA or Kruskal Wallis tests at p-value of 0.05 depended on parametric assumption tests. There were significant differences between the Roundup® solution treatment with the control on all parameters (germination parameters, weight, and chlorophyll content of cayenne pepper sprouts) (p<0.05). The effect was getting worse seen in cayenne pepper seeds given high doses of Roundup® solution. On the contrary, there were no significant differences between the treatments of the aqueous extract of Ketapang leaves with the control on all parameters (p>0.05), except the vigor index. There were morphological changes in the radicle and root of cayenne pepper sprouts exposed to them. Rotted radicles were highly visible in Roundup®-exposed sprouts.

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