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PENGGUNAAN PENDEKATAN SCIENTIFIC PADA PEMBELAJARAN KESETIMBANGAN KIMIA DALAM MENINGKATKAN KETERAMPILAN ELABORASI Purwaningsih, Eka; Fadiawati, Noor; Kadaritna, Nina
Jurnal Pendidikan dan Pembelajaran Kimia Vol 3, No 1 (2014): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Program Studi Pendidikan Kimia FKIP Unila

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Abstract

This research was aimed to describe the effectiveness of scientific approach to improve the elaboration skills in chemical equilibrium subject matter. The method of the research was quasi experimental with Nonequivalent Control Group Design. The population of this research was students of class XI IPA SMAN 1 Purbolinggo semester of academic year 2013-2014. Sampling was done by purposive sampling and obtained class XI IPA 2 as experimental class and XI IPA 4 as control class. The effectiveness of scientific approach in the learning was showed by the significant difference of n-gain between experiment and control class. The results showed that the average n-gain of elaboration skills of control class was 0,28 and 0,55 for experiment class. The result of hypothesis testing showed that scientific approach was effective to improve the elaboration skills in the learning of chemical equilibrium.Penelitian ini bertujuan untuk mendeskripsikan efektivitas pendekatan scientific dalam meningkatkan keterampilan elaborasi pada pembelajaran kesetimbangan kimia. Metode penelitian yang digunakan adalah kuasi eksperimen dengan Nonequivalent Control Group Design. Populasi dalam penelitian ini adalah seluruh siswa kelas XI IPA SMA Negeri 1 Purbolinggo semester ganjil Tahun Pelajaran 2013-2014. Pengambilan sampel dilakukan dengan purposive sampling dan diperoleh kelas XI IPA 2 sebagai kelas eksperimen dan XI IPA 4 sebagai kelas kontrol. Efektivitas pendekatan pada pembelajaran ditunjukkan berdasarkan perbedaan n-gain yang signifikan  antara kelas eksperimen dan kelas kontrol. Hasil penelitian menunjukkan rata-rata n-gain keterampilan elaborasi untuk kelas kontrol dan eksperimen masing-masing sebesar 0,28 dan 0,55.  Hasil pengujian hipotesis menunjukkan bahwa pendekatan scientific efektif dalam meningkatkan keterampilan elaborasi pada pembelajaran kesetimbangan kimia.Kata kunci: kesetimbangan kimia, keterampilan elaborasi, pendekatan scientific.
THE EFFECT OF MASASE COUNTERPRESSURE ON LABOR PAIN KALA ONE ACTIVE PHASE IN MOTHER BIRDS IN BPM SETIA Hadriani, Hadriani; Purwaningsih, Eka
Preventif: Jurnal Kesehatan Masyarakat Vol 9, No 2 (2018): Desember
Publisher : Tadulako University

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Abstract

Background & Objective: Labor pain can cause stress which can cause excessive hormone release such as ketocolamine and steroids. Pain can be reduced by pharmacological techniques and non-pharmacological techniques. Pharmacological techniques using analgesic drugs, while non-pharmacological techniques are pain control by using counterpressure techniques that reduce pain sensations by inhibiting pain from the source. The purpose of this study was to determine the effect of counterpressure massage on labor pain kala one active phase in maternity at BPM Setia. Material and Method : This research is Quasi Experimental with one group pretest and posttest design with a population of all mothers giving birth during the active phase at Setia BPM and a sample of 15 respondents. Data analysis using the Wilcoxon Signed Rank Test. Results: The scale of pain before counterpressure massage was performed in the first phase of active maternity, 9 respondents (60.0%) experienced severe pain, moderate pain as many as 3 respondents (20%) and very severe pain 3 respondents (20%). The scale of pain after counterpressure massage, mild pain 2 respondents (13.3%), moderate pain 9 respondents (60.0%) and experiencing severe pain 4 respondents (26.7%). The bivariate analysis showed p-value = 0,000. Conclusion: The conclusion of this study was that there were significant differences in pain before and after counterpressure massage in the first maternal phase of active at Setia BPM. Suggestions for midwives to be able to apply counterpressure massage techniques to reduce labor pain when I am the active phase of maternity.
REAKSI TRANSESTERIFIKASI MINYAK KELAPA DENGAN METANOL MENGGUNAKAN KATALIS BENTONIT Purwaningsih, Eka; Supartono, Supartono; Harjono, Harjono
Indonesian Journal of Chemical Science Vol 1 No 2 (2012)
Publisher : Indonesian Journal of Chemical Science

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Abstract

Bahan bakar minyak bumi merupakan sumber energi dengan konsumsi terbesar saat ini, penggunaan yang terus menerus mengakibatkan krisis bahan bakar minyak bumi. Untuk mengatasi masalah tersebut maka perlu energi alternatif yang terbarukan salah satunya biodiesel dari minyak kelapa. Permasalahan dalam penelitian ini yaitu berapa rasio mol metanol dan minyak kelapa agar diperoleh hasil yang tinggi dan bagaimana pengaruh konsentrasi katalis bentonit pada reaksi transesterifikasi minyak kelapa dan metanol. Tujuan dalam penelitian ini yaitu mengetahui rasio mol metanol dan minyak kelapa agar diperoleh hasil yang tinggi, dan pengaruh katalis bentonit dalam reaksi transesterifikasi minyak kelapa dan metanol. Metoda yang digunakan yaitu reaksi transesterifikasi minyak kelapa dan metanol dengan rasio mol (4:1; 3:1; 2:1; 1:1) dan variasi katalis bentonit (1,0%; 1,5%; 2,0%; 2,5%). Waktu reaksi transesterifikasi 3 jam dengan suhu reaksi 650C dan pengadukan konstan 400 rpm. Hasilnya dikarakterisasi dengan XRD, FTIR, GC dan GCMS. Hasil dari penelitian ini menunjukan bahwa rasio mol yang memberikan hasil tertinggi yaitu rasio mol 4:1 dan variasi katalis bentonit 1%. Metil alkanoat yang dihasilkan pada rasio mol 4:1 yaitu 11,46% dengan komposisi 1,15% metil oktanoat; 3,80% metil kaprat; 5,83% metil laurat; 0,35% metil miristat dan 0,32% metil palmitat.
Pengaruh Jus Belimbing (Averhoa Carambola Linn) Terhadap Tekanan Darah Penderita Hipertensi di Posyandu Lansia Bahagia Puskesmas Mulyorejo Layli, Alvia Nur; Purwaningsih, Eka
Infokes Vol 15 No 01 (2018): Jurnal Info Kesehatan
Publisher : Sekolah Tinggi Ilmu Kesehatan Surabaya

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Abstract

Hypertension is a common public health problem in developing countries and the second highest cause of death in Indonesia. Sweet starfruit (Averhoa Carambola Linn) many contain Potassium. According to the initial survey, 10 respondents of elderly with hypertension are obtained. The aim of this study is to analyze the difference in terms of blood pressure average by giving sweet starfruit juice towards the respondents. This study is Quasi experimental research using the approach of one group pre-post test design. The Population of all hypertension patients in Integrated Services Post (Posyandu) for elderly is 21 respondents with sample of 10 respondents. The experiment was conducted in August 2017. The patient gived a sweet starfruit juice as much as 180 gr/day. Sampling method use is purposive sampling. The data are collected using interview, questionnaire of nutrition and measure of blood pressure. The research instruments are sphygonamometer, stationery, blender, measuring cup, spoon, and sweet starfruit. The data are analyzed using Paired T-Test. The result shows that blood pressure on 8 respondents (80%) before intervention is classified as 1 degree hypertension and the blood pressure on 6 respondents (60%) after intervention is classified as prehypertension. The results of SPSS Paired T-Test with (p = 0,003) it means there were difference before and after of blood pressure with sweet starfruit juice in patients of hypertension . Significant impact of giving sweet starfruit juice in decreasing blood pressure of hypertension patients is found within this study. Based on the results of the study, it is recommended for patients with hypertension to consume of sweet starfruit juice there are no pharmacological to lowering blood pressure.