scholarly journals Potention of Active Charcoal from Musa Paradisiaca and Manihot Utilissima Shell in Degrading River Contamination

2018 ◽  
Vol 4 (1) ◽  
pp. 21
Author(s):  
Nurlailah Nurlailah ◽  
Anny Thuraidah ◽  
Yayuk Kustiningsih
Keyword(s):  
Water Quality ◽  
Heavy Metal ◽  
River Water ◽  
Heavy Metal Contamination ◽  
Active Charcoal ◽  
Optimum Dose ◽  
Control Group ◽  
P Value ◽  
Control Group Design ◽  
Musa Paradisiaca

River water is one of type water surface which is a lot of finding in South Kalimantan. Generally, this water used by the citizen for cooking and bathing. But along with era growth, this river becomes as disposal of various industrial waste. The contamination of heavy metal like Fe, Mn, Pb, Cd, and turbidity enhance progressively and degrade the water quality. Some natural substance which can be used to improve river water quality is active charcoal from Musa paradisiaca and Manihot utilissima shell which is easy to get. Target research is determined to find optimum dose of active charcoal from Musa paradisiaca and Manihot utilissima shell that capable to degrade heavy metal contamination and turbidity in water river. It used experimentally with pretest and post-test with control group design. A result of research showed the optimum dose of active charcoal Musa paradisiaca shell was 15 gram , it could absorb Pb 28,8% and Mn 24,6%, but 10 gram can degrade turbidity until 83,8 %, while the optimum dose of Manihot utilissima shell to 25,4% Pb and degraded 77,5% of turbidity was 15 gram. Statistical test result with Kruskal Wallis got the p-value less than 0,05 it meant there was a difference between the treatment of active charcoal from Musa paradisiaca and Manihot utilissima shell in degrading the contamination. A conclusion is those active charcoal having a potential to enhance the water river quality. Suggested to use another activator to the potential like stirring, time of contact and the different mass.

scholarly journals Dosis Optimum Larutan Kapur untuk Netralisasi pH Air Limbah Penambangan Batubara

2014 ◽  
Vol 11 (1) ◽  
pp. 184
Author(s):  
Ahmad Faisal ◽  
Syarifudin A.
Keyword(s):  
Waste Water ◽  
Coal Mine ◽  
Mine Waste ◽  
Coal Mines ◽  
Hydrated Lime ◽  
Optimum Dose ◽  
Control Group ◽  
P Value ◽  
Control Group Design ◽  
Mine Wastewater

Abstrak: Optimum Dose of Hydrated Lime for pH Neutralizing  in Coal Mine Waste-water. Coal mines release chemicals such as pyrite (Fe2S), produce acid waste water (H2SO4). This research aims to know the optimum dose of hydrated lime to neutralize the pH of coal mining wastewater. This research was experimental study with pretest-postest with control group design, measured pH before and after treatment. Coal mines wastewater was sampled with composite sampling method. The result showed that the average of waste-water’s pH before added 2% hydrated lime were 4,9, while wastewater added by variated dose of hydrated lime, the pH changed. Added 1, 3, 5, 7 and 9 ml hydrated lime, the pH particularly to be 5,3, 7,1, 8,2, 9,7 and 10,5. Statistical test using One Way Anova showed the p value = 0,000, ore less than α = 0,05. There was the difference significantly between pH’s average of coal mine wastewater at variation in dose of 2% hydrated lime. Test of Linier regression found equation; y = 4,906 + 0,649x with correlation value (R) = 0,982. Optimum dose of 2% hydrated lime for pH neutralizing 1 litre of coal mine wastewater was 3,23, pH=7.Keyword:  Air limbah batubara; larutan kapur; pH 

SUPPORTIVE EDUCATIVE SYSTEM DALAM MENINGKATKAN KEMANDIRIAN MERAWAT KAKI PADA PASIEN DIABETES MELLITUS TIPE II

2019 ◽  
Vol 9 (2) ◽  
pp. 63-72
Author(s):  
Nova Nurwinda Sari ◽  
Herlina Herlina
Keyword(s):  
Diabetes Mellitus ◽  
Health Center ◽  
Intervention Group ◽  
T Test ◽  
Control Group ◽  
P Value ◽  
Type Ii ◽  
Foot Care ◽  
Control Group Design ◽  
Patients With Diabetes

Diabetes mellitus dapat menyebabkan cukup banyak komplikasi seperti kelainan mata, kelainan ginjal, kelainan pembuluh darah dan kelainan pada kaki. Penderita diabetes mellitus yang mengalami komplikasi kronis perlu diberikan upaya preventif untuk mencegah komplikasi, salah satunya adalah kemampuan perawatan kaki. Penelitian ini dilakukan untuk menguji efektivitas supportive educative system dalam meningkatkan kemandirian perawatan kaki pada pasien dengan diabetes mellitus Tipe II di Puskesmas Permata Sukarame, Bandar Lampung. Penelitian ini menggunakan metode quasy eksperimen dengan desain pretest-posttest with control group dengan total masing-masing kelompok sebanyak 18 responden. Pengumpulan data dilakukan dengan menyebarkan kuesioner kepada responden yang memenuhi kriteria inklusi penelitian. Penelitian ini diuji menggunakan analisis univariat, bivariat dan uji T-test. Hasil penelitian menunjukkan bahwa terdapat perbedaan rata-rata dalam kemandirian perawatan kaki pada kelompok intervensi dan kelompok kontrol dengan p-value 0,000. Pendidikan dan praktik perawatan kaki harus diberikan sejak dini sebagai upaya pencegahan untuk komplikasi.   Kata kunci : Supportive educative system, kemandirian perawatan kaki   SUPPORTIVE EDUCATIVE SYSTEM IN IMPROVING INDEPENDENCE OF FOOT CARE IN PATIENTS WITH DIABETES MELLITUS TYPE II   ABSTRACT Diabetes mellitus can cause quite a lot of complications such as eye disorders, kidney disorders, vascular disorders and abnormalities in the legs. Patients with diabetes mellitus who have chronic complications need to be given a preventive effort to prevent complications, one of which is foot care ability. This research was conducted to examine the effectiveness of supportive educative systems in increasing the independence of foot care in patients with Type II diabetes mellitus in the Permata Sukarame Health Center Bandar Lampung Working Area. This study used a quasi-experimental method with pretest-posttest with control group design with a total of 18 respondents each. Data collection is done by distributing questionnaires to respondents who meet the research inclusion criteria. This study was tested using univariate, bivariate, T-Test analysis. The results showed that the mean differences in the independence of foot care in the intervention group and the control group in the Permata Sukarame Community Health Center work area with a p-value of 0,000. Education and practice of foot care should be given early as a preventative effort for complications.   Keywords: Supportive educative system, independence of foot care

PENINGKATAN KEMAMPUAN PEMAHAMAN DAN KREATIVITAS MATEMATIS SISWA DENGAN MENGGUNAKAN MODEL PENCAPAIAN KONSEP

2013 ◽  
Vol 19 (1) ◽  
pp. 52
Author(s):  
Adi Suarman Situmorang
Keyword(s):  
Random Sampling ◽  
Control Group ◽  
P Value ◽  
Design Data ◽  
Control Group Design ◽  
Group Design ◽  
Post Test ◽  
Test Control

Abstract Tujuan penelitian bertujuan untuk mengetahui peningkatan kemampuan kreativitas matematika siswa yang diajar dengan model pencapaian konsep lebih tinggi dari siswa yang diajar dengan pembelajaran konvensional. Mengetahui interaksi antara model pembelajaran pencapaian konsep dengan tingkat kemampuan matematika siswa terhadap peningkatan kemampuan kreativitas matematika siswa. Penelitian ini dilaksanakan di SMA Negeri 5 Medan dengan jumlah sampel sebanyak 80 siswa dari 364 siswa SMA kelas X melalui teknik random sampling, Penelitian ini merupakan suatu studi eksperimen dengan desain penelitian pre-test-post-test control group design. Data diperoleh melalui nilai semester untuk kemampuan awal matematis (KAM), tes kemampuan pemahaman matematis, tes kemampuan kreativitas matematis. Data dianalisis dengan uji ANAVA dua jalur. Hasil analisis data menunjukkan bahwa rata-rata tes kemampuan kreativitas eksperimen dan kontrol adalah 13,3 dan 7,58 dengan p-value (2-tailed) adalah 0, dengan 0 < α = 0,05 maka terdapat perbedaan kemampuan kreativitas matematik siswa yang diajarkan dengan Model Pencapaian Konsep (MPK) dan Pendekatan Pembelajaran Konvensional, nilai signifikan sebesar 0,732, karena 0,732 > 0,05 maka tidak ada interaksi antara pendekatan pembelajaran dengan kemampuan awal siswa terhadap perbedaan kemampuan kreativitas matematik siswa. .

Pengaruh Pembelajaran Berbasis Masalah Terhadap Keterampilan Berpikir Kritis Siswa Pada Materi Gerak di Kelas X SMA Negeri 6 Sigi

2016 ◽  
Vol 4 (3) ◽  
pp. 16
Author(s):  
Sayid Ali Rahmat ◽  
Marungkil Pasaribu ◽  
I Wayan Darmadi
Keyword(s):  
Control Group ◽  
P Value ◽  
Control Group Design ◽  
Purposive Sampling ◽  
Group Design

Penelitian ini bertujuan untuk mengetahui ada tidaknya pengaruh model pembelajaran berbasis masalah   terhadap keterampilan berpikir kritis siswa   pada materi gerak di kelas X SMA Negeri 6 Sigi. Metode yang digunakan adalah kuasi eksperimen dengan nonequivalent control group design. Populasi penelitian ini adalah seluruh siswa kelas X SMA Negeri 6 Sigi. Pengambilan sampel dilakukan secara purposive sampling dengan sampel penelitian adalah kelas Xa sebagai kelas eksperimen dan kelas Xb sebagai kelas kontrol. Instrumen penelitian berupa tes kemampuan berpikir kritis serta lembar observasi yang telah divalidasi oleh validator dan telah diuji coba lapangan. Analisis data yang digunakan statistik inferensial yaitu uji normalitas, homogenitas, uji hipotesis (uji t 2 pihak).  Berdasarkan hasil penelitian dan analisa data hasil penelitian, diperoleh nilai keterampilan berpikir kritis siswa  pada pretest untuk kelas eksperimen yaitu 21.32, dan untuk kelas kontrol yaitu 20.29 sedangkan untuk standar deviasinya masing – masing 6.89 dan 8.87. Untuk posttest nilai rata – rata kelas eksperimen 53.24 dan untuk kelas kontrol 42.79 sedangkan untuk standar deviasinya masing – masing 16.87 dan 17.33. Nilai P-value hasil uji hipotesis diperoleh lebih kecil dibandingkan dengan nilai α atau 0,014 < 0,05 serta nilai t hitung > t tabel atau 2,51 > 1,66 sehingga H1 diterima dan H0 ditolak. Hasil ini menyatakan bahwa terdapat perbedaan yang signifikan  model pembelajaran berbasis masalah terhadap keterampilan berpikir kritis siswa pada materi gerak di kelas X SMA Negeri 6 Sigi.   Kata Kunci: pembelajaran berbasis masalah, keterampilan berpikir kritis

scholarly journals Integrating Peer Learning Activities and Problem-Based Learning in Clinical Nursing Education

2021 ◽  
Vol 7 ◽  
pp. 237796082110002
Author(s):  
Suci Tuty Putri ◽  
Sri Sumartini
Keyword(s):  
Nursing Education ◽  
Problem Based Learning ◽  
Sampling Technique ◽  
Peer Learning ◽  
Average Score ◽  
Control Group ◽  
P Value ◽  
Clinical Learning ◽  
Control Group Design ◽  
Learning Achievement

Introduction The implementation of nursing clinical learning in Indonesia has several challenges that require innovation in the learning method strategy. The method that has been used so far focuses on the hierarchical relationship between lecturers/preceptors and students, so that there are many shortcomings in learning outcomes. The application of the method of active learning with Peer Learning (PL) and Problem Based Learning (PBL) techniques has proven effective in classroom learning, but its rarely found in clinical learning. Objective The purpose of this study was to determine the effectiveness of the PL and PBL towards the achievement of clinical learning in nursing students. Methods The research method used a true experiment with a posttest only control group design, the sampling technique was taken by randomize control trial. An instrument for clinical learning achievement using AssCE. Results The analysis was carried out as descriptive and bivariate. The results showed the mean in the experimental group was 7.059 and the control group was 6.325. Further statistical test results were obtained p-value = 0.001 (p < 0.05) which showed that the average score there were differences in clinical learning achievement development scores. Conclusion Clinical learning using peer learning and PBL methods can directly improve various aspects of student competency achievement.

scholarly journals Long-Term River Water Quality Trends and Pollution Source Apportionment in Taiwan

Water ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1394 ◽  
Author(s):  
Marsha Putri ◽  
Chao-Hsun Lou ◽  
Mat Syai’in ◽  
Shang-Hsin Ou ◽  
Yu-Chun Wang
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Heavy Metal ◽  
Cluster Analysis ◽  
River Water ◽  
Principal Component ◽  
Pollution Level ◽  
Metal Levels ◽  
Metal Monitoring

The application of multivariate statistical techniques including cluster analysis and principal component analysis-multiple linear regression (PCA-MLR) was successfully used to classify the river pollution level in Taiwan and identify possible pollution sources. Water quality and heavy metal monitoring data from the Taiwan Environmental Protection Administration (EPA) was evaluated for 14 major rivers in four regions of Taiwan with the Erren River classified as the most polluted river in the country. Biochemical oxygen demand (6.1 ± 2.38), ammonia (3.48 ± 3.23), and total phosphate (0.65 ± 0.38) mg/L concentration in this river was the highest of the 14 rivers evaluated. In addition, heavy metal levels in the following rivers exceeded the Taiwan EPA standard limit (lead: 0.01, copper: 0.03, and manganese: 0.03) mg/L concentration: lead-in the Dongshan (0.02 ± 0.09), Jhuoshuei (0.03 ± 0.03), and Xinhuwei Rivers (0.02 ± 0.02) mg/L; copper: in the Dahan (0.036 ± 0.097), Laojie (0.06 ± 1.77), and Erren Rivers are (0.05 ± 0.158) mg/L; manganese: in all rivers. A total 72% of the water pollution in the Erren River was estimated to originate from industrial sources, 16% from domestic black water, and 12% from natural sources and runoff from other tributaries. Our research demonstrated that applying PCA-MLR and cluster analysis on long-term monitoring water quality would provide integrated information for river water pollution management and future policy making.

scholarly journals Optimalisasi Pertumbuhan Bayi dengan Baby Massage and Spa

2019 ◽  
Vol 10 (2) ◽  
pp. 276
Author(s):  
Yusari Asih ◽  
I Gusti Ayu Mirah WS
Keyword(s):  
Body Length ◽  
Head Circumference ◽  
Intervention Group ◽  
Sampling Technique ◽  
Holistic Approach ◽  
The Body ◽  
Control Group ◽  
P Value ◽  
Control Group Design ◽  
Significant Difference

<p><span>Baby Massage and Spa was a traditional effort that uses a holistic approach through comprehensive care using a combination of massage and water therapy methods that are carried out in an integrated manner to balance the body, mind, and feelings. Age 3-6 months is the right time for babies to do massage and spa. The purpose of this study was to determine the effect of baby massage and spa on the growth of infants aged 3-5 months in Pringsewu District in 2018. This study uses a quasi-experimental approach with research design pre and post-test with control group design. The purposive sampling technique was taken with a sample of 30 infants as the intervention group and 30 infants as the control group. Data were processed using computerization and analyzed using the T-Test. The results showed that there were significant differences between body weight, body length and baby head circumference in the pre and post-treatment. There was no significant difference in the average increase in infant weight between babies who were carried out by baby massage and spa with babies who were not carried out by baby massage and spa with p-value 0.116. There is a significant difference in the baby's body length and head circumference performed by baby massage and spa with those not carried out by baby massage and spa with p-value 0.000. Baby Massage and Spa has a significant effect on increasing the growth of babies aged 3-5 months.</span></p><p><span> </span></p>

scholarly journals PENGARUH MODEL PROBLEM-BASED LEARNING TERHADAP KEMAMPUAN PEMECAHAN MASALAH GEOGRAFI SMA

2017 ◽  
Vol 9 (1) ◽  
pp. 32
Author(s):  
Diyas Age Larasati
Keyword(s):  
Problem Solving ◽  
Model Problem ◽  
Problem Based Learning ◽  
T Test ◽  
Control Group ◽  
P Value ◽  
Control Group Design ◽  
Problem Solving Skills ◽  
Gain Score ◽  
Pbl Model

Penelitian ini bertujuan menguji pengaruh model PBL terhadap kemampuan pemecahan masalah geografi SMA. Penelitian dilakukan di SMA Negeri 1 Sooko tahun ajaran 2015/2016. Subjek penelitian merupakan siswa kelas XI IPS 2 dan 3. Penelitian ini merupakan penelitian eksperimen semu (quasi experiment) dengan desain Non Equivalent Control Group Design. Berdasarkan selisih nilai pre test dan post test, rata-rata gain score kemampuan pemecahan masalah geografi SMA kelas eksperimen lebih tinggi dengan skor 27,26 dibandingkan dengan kelas kontrol dengan skor 11,88. Hasil perhitungan analisis uji t menggunakan independen sample t test diperoleh data p-level lebih kecil dari 0,05 (p<0,05) yaitu 0,00. Hasil perhitungan ini membuktikan bahwa model PBL berpengaruh terhadap kemampuan pemecahan masalah geografi SMA. Jadi, dapat disimpulkan bahwa model PBL berpengaruh terhadap kemampuan pemecahan masalah geografi SMAN 1 Sooko.Kata Kunci: Model Problem Based Learning, Kemampuan Pemecahan MasalahThe purpose of this study was to clarify the effect of the PBL model of problem-solving ability. This study do in SMA Negeri 1 Sooko 2015/2016. Study of the subject is the student of class XI IPS 2 dan 3. Form of quasi-experimental research design with non equivalent design control group. Subjects were selected based on the value of Middle Exam School (UTS) semester who have the same average (homogeneous). Control using a model class lectures and discussions, while the experimental class using PBL models. Gain score Data were analyzed using independent sample T-test Test with the help of the computer program SPSS 16.0 for Windows. Gainscore learning using PBL model of higher than conventional. The average value of the experiment gainscore class of 27, 26 and 11.88 of control. The results of the analysis of the Independent Sample T-Test Test, the difference shows a p-value of 0.000 level. The level of p-value less than 0.05 (P <0.05). The results of this study there was a significant effect PBL models to the problem-solving abilities. So the conclusion "PBL model significantly influential to the high school geography problem solving skills in SMAN 1 Sooko".Key Words: models of PBL, problem-solving abilities

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