scholarly journals PENGARUH KEDALAMAN TERHADAP NILAI PRODUKTIVITAS PRIMER DI WADUK JATIBARANG SEMARANG

2016 ◽  
Vol 5 (3) ◽  
pp. 150-156
Author(s):  
Wiwi Siti Rohmah ◽  
Suryanti Suryanti ◽  
Max Rudolf Muskananfola
Keyword(s):  
Chlorophyll A ◽  
Primary Productivity ◽  
Chemical Parameters ◽  
Average Value ◽  
Depth Difference ◽  
Sampling Locations ◽  
Regression Test ◽  
Productivity Measurements ◽  
Descriptive Method ◽  
Simple Regression

ABSTRAK Waduk Jatibarang merupakan salah satu waduk yang tergolong baru di Kota Semarang. Untuk mencegah terjadinya penurunan kualitas perairan pada waduk dimasa mendatang, penting dilakukan pengukuran tingkat kesuburan perairan waduk secara berkala. Salah satu cara untuk mengetahui tingkat kesuburan perairan waduk yaitu dengan melakukan pengukuran produktivitas primer perairan dan kandungan klorofil-a serta parameter fisika-kimia perairan. Penelitian ini dilakukan pada bulan Februari-Maret 2016 di Waduk Jatibarang Semarang. Tujuan dari Penelitian ini adalah untuk mengetahui nilai produktivitas primer perairan berdasarkan perbedaan kedalaman serta untuk mengetahui pengaruh kedalaman terhadap nilai produktivitas primer perairan di Waduk Jatibarang, Semarang. Metode yang digunakan dalam penelitian ini adalah Deskriptif lokasi sampling, yaitu Stasiun I; Inlet, Stasiun II perairan tengah waduk dan Stasiun III Outlet dalam tiga kali pengulangan dengan rentang waktu satu minggu. Hasil pengukuran produktivitas primer pada ketiga stasiun per kedalaman adalah; kedalaman 0 m berkisar 54,750-90,000 mgC/m3/hari, kedalaman 5 m berkisar 91,500-102,750 mgC/m3/hari, kedalaman 10 m berkisar 39,750-64,500 mgC/m3/hari dan kedalaman 15 m berkisar 20,250-45,5000 mgC/m3/hari. Berdasarkan nilai tersebut maka perairan waduk Jatibarang tergolong sebagai perairan Mesotrofik-Eutrofik. Rata-rata nilai kandungan klorofil-a minggu ke-1 0,6913 mg/m3, minggu ke-2 0,6665mg/m3, dan minggu ke-3 0,4409 mg/m3. Hasil uji regresi sederhana menunjukan terdapat pengaruh variabel kedalaman dan kandungan klorofil-a terhadap produktivitas primer sebesar 51,3%. Kata Kunci : Produktivitas Primer; Klorofil-a; Waduk Jatibarang Semarang  ABSTRACT Jatibarang Reservoir is one of the new reservoirs in Semarang. To prevent the degradation of reservoirs water quality in the future, it is important to measure the dam water fertilization periodically. Like one of the ways to determine the level of fertility of the dam water is by measuring the primary productivity of the water and chlorophyll-a and physic-chemical parameters of the waters. This study was conducted from February to March 2016 in Semarang Jatibarang Reservoir. The aim of this study is to determine the primary productivity of waters based on depth difference and the depth effects on primary productivity of the waters of the Jatibarang reservoir, Semarang. The method used in this study is descriptive method. Sampling locations are station I; Inlet, Station II: middle of reservoir and stations III: Outlet with three repetitions for the period of one week. The results of primary productivity measurements at each stations per depth is; at the depth of 0 m the results ranges from 54.750 to 90.000 mgC/m3/day, at the depth of 5 m from 91.500 to 102.750 mgC/m3/day, at the depth of 10 m from 39.750 to 64.500 mgC/m3/day and at the depth of 15 m from 20.250 to 45.5000 mgC/m3/day. Based on these results, it is concluded that the water of Jatibarang Reservoir is classified as Mesotrofik-eutrophic waters. The average value of chlorophyll-a in the first week is 0.6913 mg/m3, in the 2nd week is 0.6665 mg/m3, and the 3rd week is 0.4409 mg/m3. The results of simple regression test reveals that there is a significant effect of water depth and chlorophyll-a on primary productivity is  51.3%. Keywords: Primary Productivity, Chlorophyll-a, Jatibarang Reservoir Semarang

The Influence of Verbal-Linguistic Intelligence on Students Learning Outcomes in English at SMA Negeri 1 Sidrap

2021 ◽  
Vol 1 (2) ◽  
pp. 141-148
Author(s):  
Rini Handayani ◽  
Geminastiti Sakkir ◽  
Rosmini Kasman
Keyword(s):  
Statistical Analysis ◽  
Learning Outcomes ◽  
Quantitative Research ◽  
Design Research ◽  
Positive Influence ◽  
Average Value ◽  
Regression Test ◽  
Simple Regression ◽  
Descriptive Statistical Analysis ◽  
Learning English

This study aims to determine verbal linguistic intelligence, to determine the results learning English especially on students' speaking, and to find out the influence of verbal linguistic intelligence on learning outcomes in English students of class X IPA 1 of SMAN 1 Sidrap. This research is quantitative research; this type of research is a pre-experimental design research. The population in this study was all students of class X SMAN 1 Sidrap, amounting to 182 people, while the study sample was the entire population, namely students of class X IPA 1 SMAN 1 Sidrap, amounting to 32 people. The instruments used in this study were interviews, questionnaires, treatment and recording tools. The data analysis technique used is descriptive statistical analysis and simple regression test through the application of SPSS. Based on the results of descriptive statistical analysis, verbal linguistic intelligence obtained an average value of 84.94, the lowest value obtained 0, and the highest value 107 and are at a percentage of 56.25% are in the average category. The results of learning English in this case speaking students obtained an average value of 96, the lowest value of 0, and the highest value of 96 and are in the good category with a percentage of 65.625%. The simple regression test results obtained sig <α (0,000 <0.05). This means that Ho is rejected and Ha is accepted, which means there is a positive influence between verbal linguistic intelligence on learning outcomes of students of class X Science 1 of SMAN 1 Sidrap.

scholarly journals ESTIMASI PRODUKTIVITAS PRIMER PERAIRAN BERDASARKAN KONSENTRASI KLOROFIL-A YANG DIEKSTRAK DARI CITRA SATELIT LANDSAT-8 DI PERAIRAN KEPULAUAN KARIMUN JAWA

2017 ◽  
Vol 14 (1) ◽  
Author(s):  
Mulkan Nuzapril ◽  
Setyo Budi Susilo ◽  
James Parlindungan Panjaitan
Keyword(s):  
Chlorophyll A ◽  
Attenuation Coefficient ◽  
Primary Productivity ◽  
Chlorophyll Concentration ◽  
Euphotic Zone ◽  
Landsat 8 ◽  
Secchi Disk ◽  
Estimation Model ◽  
Chlorophyll A Concentration ◽  
Average Value

Sea primary productivity is an important factor in monitoring the quality of sea waters due to his role in the carbon cycle and the food chain for heterotrophic organisms. Estimation of sea primary productivity may be suspected through the values of chlorophyll-a concentration, but surface chlorophyll-a concentration was only able to explain 30% of the primary productivity of the sea. This research aims to build primary productivity estimation model based on chlorophyll-a concentration value of a surface layer of depth until depth compensation. Primary productivity model of relationships with chlorophyll concentration were extracted from Landsat-8 imagery then it could be used to calculated of sea primary productivity. The determination of the depth classification were done by measuring the attenuation coefficient values using the luxmeter underwater datalogger 2000 and secchi disk. The attenuation coefficient values by the luxmeter underwater, ranges between of 0.13-0.21 m-1 and secchi disk ranged, of 0.12 – 0.21 m-1. The penetration of light that through into the water column where  primary productivity is still in progress or where the depth of compensation ranged from 28.75 – 30.67 m. The simple linier regression model between average value of chlorophyll- concentration in all euphotic zone with sea primary productivity has high correlation, it greater than of surface chlorophyll-a concentration (R2 = 0.65). Model validation of sea primary productivity has high accuracy with the RMSD value of 0.09 and satellite-derived sea primary productivity were not significantly different. The satellite derived of chlorophyll-a could be calculated into sea primary productivity.Abstrak Produktivitas primer perairan merupakan faktor penting dalam pemantauan kualitas perairan laut karena berperan dalam siklus karbon dan rantai makanan bagi organisme heterotrof. Estimasi produktivitas primer perairan dapat diduga melalui nilai konsentrasi klorofil-a, namun konsentrasi klorofil-a permukaan laut hanya mampu menjelaskan 30% produktivitas primer laut. Penelitian ini bertujuan untuk membangun model estimasi produktivitas primer berdasarkan nilai konsentrasi klorofil-a dari lapisan kedalaman permukaan sampai kedalaman kompensasi. Model hubungan produktivitas primer dengan konsentrasi klorofil-a yang diekstrak dari citra satelit Landsat-8 kemudian dapat digunakan untuk mengestimasi produktivitas primer satelit. Penentuan klasifikasi kedalaman dilakukan dengan mengukur nilai koefisien atenuasi menggunakan luxmeter underwater datalogger 2000  dan secchi disk. Nilai koefisien atenuasi dengan menggunakan luxmeter underwater berkisar antara 0,13 -0,21m-1 dan secchi disk berkisar antara 0,12 – 0,21 m-1. Penetrasi cahaya yang masuk ke kolom perairan dimana produksi primer masih berlangsung atau kedalaman kompensasi berkisar antara 28,75 – 30,67 m. Model regresi linier sederhana antara konsentrasi klorofil-a rata-rata seluruh zona eufotik dengan produktivitas primer perairan memiliki korelasi yang lebih tinggi dibandingkan konsentrasi klorofil-a permukaan dengan R2= 0,65. Validasi model produktivitas primer memiliki keakuratan yang tinggi dengan RMSD sebesar 0,09 dan produktivitas primer satelit secara signifikan tidak berbeda nyata dengan produktivitas primer data insitu. Sehingga  nilai konsentrasi klorofil-a satelit dapat ditransformasi menjadi produktivitas primer satelit.

scholarly journals Pengaruh Kecerdasan Logika Matematika Terhadap Disposisi Matematis Siswa

2019 ◽  
Vol 4 (1) ◽  
pp. 48-57 ◽  
Author(s):  
Anah Maemanah ◽  
Widodo Winarso
Keyword(s):  
Test Analysis ◽  
Average Value ◽  
Ex Post ◽  
Three Samples ◽  
Regression Test ◽  
Ex Post Facto ◽  
Mathematical Problems ◽  
Mathematical Dispositions ◽  
High Level ◽  
Simple Regression

This study aims to determine the influence of logic smart on students' mathematical dispositions. The method is quantitative with ex post facto approach — the population of class XI MIPA MAN 2 Cirebon and three samples taken by random sampling. Data collection uses logic smart tests and questionnaires was then analyzed using a simple regression test. Analysis and interpretation of data show that logic smart of students at coherent level with the average value is 65.93 and 57%, mathematical disposition of students is at a high level with a percentage of the average indicator value is 70%, and there is a significant influence between logic smart with the mathematical disposition of 63.2% and a significance value of 0.00<0.05. So, the teacher should improve the logic of smart students through logical thinking, as well as counting ability accompanied by observations to solve mathematical problems because it has implications for the ability of students' mathematical dispositions.

scholarly journals PENGARUH KECERDASAN VERBAL LINGUISTIK TERHADAP HASIL BELAJAR PADA MATA PELAJARAN BAHASA INDONESIA

2018 ◽  
Vol 5 (2) ◽  
pp. 162
Author(s):  
Andi Halimah ◽  
Ahmad Afiif ◽  
Besse Ratu
Keyword(s):  
Statistical Analysis ◽  
Learning Outcomes ◽  
Quantitative Research ◽  
Verbal Intelligence ◽  
Class V ◽  
Average Value ◽  
Regression Test ◽  
Simple Regression ◽  
Bahasa Indonesia ◽  
Descriptive Statistical Analysis

AbstrakPenelitian ini bertujuan untuk mengetahui kecerdasan verbal linguistik, untuk mengetahui hasil belajar bahasa Indonesia, dan untuk mengetahui pengaruh kecerdasan verbal linguistik terhadap hasil belajar bahasa Indonesia peserta didik kelas V MIN Batu Pitumpanua Kabupaten Wajo. Penelitian ini adalah penelitian kuantitatif, jenis penelitian ini adalah penelitian ex-postfacto. Populasi dalam penelitian ini adalah seluruh siswa kelas V MIN Batu Pitumpanua Kabupaten Wajo yang berjumlah 60 orang, sedangkan sampel penelitian adalah seluruh populasi yaitu peserta didik kelas V MIN Batu Pitumpanua Kabupaten Wajo. Instrumen yang digunakan dalam penelitian ini adalah skala kecerdasan verbal linguistik dan dokumentasi. Teknik analisis data yang digunakan adalah analisis statistik deskriptif dan analisis statistika inferensial uji regresi sederhana. Berdasarkan hasil analisis statistik deskriptif, kecerdasan verbal linguistik diperoleh nilai rata-rata 86,9, diperoleh nilai terendah 57, dan nilai tertinggi 102 dan berada pada kategori sedang dengan persentase 55%. Hasil belajar bahasa Indonesia diperoleh nilai rata-rata 88,7, nilai terendah 80, dan nilai tertinggi 95 dan berada pada kategori tinggi dengan persentase 53,3%. Adapun hasil analisis statistik inferensial dengan uji regresi sederhana diperoleh sig < α (0,024 < 0,05). Hal ini berarti Ho ditolak dan Ha diterima yang berarti terdapat pengaruh yang positif antara kecerdasan verbal linguistik terhadap hasil belajar peserta didik kelas V MIN Batu Pitumpanua Kabupaten Wajo. AbstractThis study aims to determine verbal linguistic intelligence, to find out the results of learning Indonesian, and to determine the effect of linguistic verbal intelligence on the learning outcomes of Indonesian students in class V MIN Batu Pitumpanua Wajo Regency. This study is quantitative research, the type of research is ex-postfacto research. The population in this study were all students of class V MIN Batu Pitumpanua district Wajo, amounting to 60 people, while the study sample was the entire population, namely class V students of MIN Batu Pitumpanua, Wajo Regency. The instrument used in this study is the verbal intelligence linguistic scale and documentation. The data analysis technique used is descriptive statistical analysis and inferential statistical analysis simple regression test. Based on the results of descriptive statistical analysis, linguistic verbal intelligence obtained an average value of 86.9, obtained the lowest value of 57, and the highest score of 102 and was in the medium category with a percentage of 55%. The results of learning Indonesian obtained an average value of 88.7, the lowest score was 80, and the highest score was 95 and was in the high category with a percentage of 53.3%. The results of inferential statistical analysis with a simple regression test are obtained sig <α (0.024 <0.05). This means that Ho is rejected and Ha is accepted, which means there is a positive influence between linguistic verbal intelligence on learning outcomes of class V students of MIN Batu Pitumpanua, Wajo Regency.

scholarly journals Urban Catalyst Element Impact on the Pattern of Spatial Distribution in Semarang City Border Area

2018 ◽  
Vol 7 (2.29) ◽  
pp. 1002
Author(s):  
Bambang Setioko ◽  
Mustika KW ◽  
Titien WM
Keyword(s):  
Spatial Distribution ◽  
Statistical Data ◽  
Statistical Data Analysis ◽  
Literature Study ◽  
Border Area ◽  
Regression Test ◽  
Administrative Area ◽  
The City ◽  
Descriptive Method ◽  
Administrative Boundary

In recent decades the urban growth in Indonesia is likely to follow a global urban trend, characterized by peripheral urbanization. This phenomenon has potentially encouraged the growth of urban physical area to be very broad and unlimited, and often exceeds the city administrative boundary. The urban catalyst development in the eastern city accelerates the growth of settlement in the border area; while the visually of both amongst the border area and the urban area are similar. This research was conducted in Sendang Mulyo village located in the administrative area of Semarang City and in Pucang Gading village located in, Demak Region. This study aims to determine the effect of urban catalyst element on the pattern of spatial distribution in the border area of Semarang City and Demak Region. Based on literature study that has been done, this research uses a quantitative approach with descriptive method under of rationalistic paradigm. Statistical data analysis is done by regression test using software SPSS 16.0. The results of this study indicate the growth and development of urban catalyst elements in the eastern part of Semarang city, significantly has impact to the pattern of spatial distribution in the border area of the Semarang city significantly.  

scholarly journals ANALISIS FAKTOR – FAKTOR YANG MEMPENGARUHI UPAYA PENCEGAHAN PENYAKIT JANTUNG KORONER (PJK) DI DESA PANDES TASIKMADU KARANGNYAR

2017 ◽  
Vol 5 (1) ◽  
Author(s):  
Diyono Diyono ◽  
Nisma Ayu Ambarwati
Keyword(s):  
Coronary Heart Disease ◽  
Heart Disease ◽  
Educational Level ◽  
Education Level ◽  
Influential Factor ◽  
Average Value ◽  
Regression Test ◽  
Analytical Research ◽  
Level Of Knowledge ◽  
The Village

Coronary Heart Disease (CHD) is still the leading cause of death in Indonesia. The bestmanagement of CHD is primary prevention, but not many people who do well with a widevariety of factors that influence. Objective: (1) know the description of prevention ofcoronary heart disease (2) Analyze the factors that affect the prevention of coronary heartdisease, including age, education level, and the level of knowledge of the CHD disease.Method: analytical research correlational. Subjects 65 people in the village PandesTasikamadu Karanganyar. Samples taken purposive sampling. Data were analyzed withMultiple Linear Regression Test using SPSS 18.Results: (1) In general, respondents are already doing prevention of coronary heartdisease as well with an average value of 22.85. (2) Age (p = 0.474) and educational level(p = 498) did not significantly influence the prevention of coronary heart disease (3) Thelevel of knowledge and perception of coronary heart disease significantly influence theprevention of coronary heart disease (4) perceptions of coronary heart disease is themost influential factor towards the prevention of coronary heart disease (p = 0.001; β =0.665). Conclusions: factors that influence the prevention of coronary heart disease is thelevel of knowledge (p = 0.015) and perception (p = 0.001).Keywords: Coronary Heart Disease, Age, Education Level, Knowledge

scholarly journals PENGARUH KINERJA KEUANGAN TERHADAP INVESTASI AKTIVA TETAP PT. SEPATU BATA, Tbk DI BURSA EFEK INDONESIA

2018 ◽  
Author(s):  
STIM Sukma
Keyword(s):  
Financial Performance ◽  
Hypothesis Test ◽  
Data Use ◽  
Coefficient Of Determination ◽  
Return On Assets ◽  
Fixed Asset ◽  
Processing Data ◽  
Regression Test ◽  
Simple Regression ◽  
Fixed Asset Investment

The purpose of this research is to determine impact of the financial performance of fixed asset investment. The data analyzedby simple regression test with hypothesis test, using test the coefficient of determination (R2), partial test (t test), while processing data use SPSS. The results showed that the coefficient of determination (R2) variable Return On Assets (ROA) able to explain the variations that occur in fixed asset investment, but it is partially noeffect and significant fixed asset investment.

scholarly journals Pemahaman Konsep Matematis Siswa Kelas VIII pada Materi Lingkaran

2019 ◽  
Vol 8 (2) ◽  
pp. 297-306
Author(s):  
Attin Warmi
Keyword(s):  
Data Collection ◽  
Daily Life ◽  
Concept Analysis ◽  
Research Subject ◽  
Mathematical Concepts ◽  
Average Value ◽  
Case Research ◽  
Class Viii ◽  
The Subject ◽  
Descriptive Method

AbstrakBanyak siswa yang kesulitan dalam memahami konsep matematika. Tujuan dari penelitian ini untuk mengetahui kemampuan pemahaman konsep siswa dalam menyelesaikan soal-soal pada pokok bahasan Lingkaran. Metode yang digunakan dalam penelitian ini  adalah metode deskriptif dengan penelitian kasus. Materi tentang Lingkaran merupakan materi yang terdapat di SMP kelas VIII pada semester genap dan materi ini merupakan salah satu materi yang berhubungan dengan kehidupan sehari hari. Kelas VIII F SMPN 3 Karawang Barat dipilih sebagai subjek penelitian. Pengumpulan data dilakukan dengan pemberian tes tertulis kemampuan pemahaman konsep. Soal berbentuk uraian yang sebelum digunakan sudah di uji validasi. Hasil penelitian ini menunjukan rata-rata nilai kemampuan pemahaman konsep matematis siswa adalah 10,06 termasuk dalam kriteria sedang.  Hasil analisis konsep per indikator, diketahui siswa sangat kurang pada indikator menerapkan hubungan antar konsep dan prosedur, kemudian dalam menerapkan konsep secara algoritma. Masih terdapat banyak siswa yang memiliki pemahaman konsep yang kurang.  Understanding of Mathematical Concepts Class VIII Students in Circle MaterialsAbstractMany students have difficulty understanding mathematical concepts. The purpose of this study is to determine the ability to understand students' concepts in solving questions on the subject of the Circle. The method used in this research is descriptive method with case research. The material about Circles is the material found in class VIII SMP in the even semester and this material is one of the materials related to daily life. Class VIII F of SMP 3 Karawang Barat was chosen as the research subject. Data collection is done by giving written tests the ability to understand concepts. Questions in the form of descriptions that have been validated before being used. The results of this study show the average value of the ability to understand students' mathematical concepts is 10.06 which is included in the criteria of being. The results of concept analysis per indicator, it is known that students are very lacking in indicators applying relationships between concepts and procedures, then in applying the concept algorithmically. There are still many students who lack an understanding of concepts.

scholarly journals IMPLEMENTASI PENGUATAN PENDIDIKAN KARAKTER PADA MATERI RUANG LINGKUP BIOLOGI

2020 ◽  
Vol 8 (3) ◽  
pp. 103-116
Author(s):  
TIURLINA SIREGAR ◽  
JOKO WALUYO ◽  
SUBIYANTO SUBIYANTO
Keyword(s):  
Data Collection ◽  
Character Education ◽  
Learning Outcomes ◽  
Sampling Method ◽  
Regression Equation ◽  
Relative Contribution ◽  
Regression Test ◽  
Space Material ◽  
Data Collection Technique ◽  
Simple Regression

The purpose of this study was to determine the implementation of strengthening character education to increase learning outcomes in the material in the scope of biology. The method in this research is the furpossive sampling method and the data collection technique that be used is a questionnaire, which is a data collection technique that is done by giving a set of questions or written statements to the respondent. There is an effect of the implementation of strengthening character education on the learning outcomes of biology subject in class XI SMA Negeri 4 Jayapura City. This is based on the results of the simple regression test, it is obtained that t count is greater than t table (2.174> 1.960) and the significance is 0.031 <0.05 with the regression equation Y = 63.870 + 0.177 X2 with a contribution or relative contribution of 1.7%, Increased mastery of the concept of space material the scope of biology is above 0.7, which means that students have mastery of concepts. The results of the calculation of the pretest and posttest values have an increase of 0.85 in the moderate category

scholarly journals Risk Based Bank Rating dalam Mengukur Tingkat Kesehatan Perbankan

2019 ◽  
Vol 3 (2) ◽  
pp. 114-123
Author(s):  
Neny Tri Indrianasari ◽  
Khoirul Ifa
Keyword(s):  
Corporate Governance ◽  
Financial Services ◽  
Time Series Data ◽  
Risk Profile ◽  
Series Data ◽  
Average Value ◽  
Good Corporate Governance ◽  
Source Data ◽  
The Government ◽  
Descriptive Method

The Financial Services Authority assesses the national banking industry in the better shape shown by some indicators, one of which the involvement of the Government in realizing economic growth. With the better banking conditions will marimbas Bank on growth Of Islamic Peoples. This research aims to know the level of health of bank Syariah BPR in East Java by using methods of Risk-Based Bank Rating. The assessment by the method of Risk-Based Bank Rating consists of four factors of risk profile, Good Corporate Governance, earning and capital of each bank. This research uses descriptive method quantitative approach to analyze the ratio-the ratio of the measured. The data type used is the time series data of the year 2015 – 2017. Source data obtained from the Financial Services Authority website (OJK). Data analysis techniques using analysis of Risk-Based Bank Rating (RBBR) consist of four-factor risk profile, Good Corporate Governance, earning and capital. The study concluded that the overall average value of NPF Bank Of Islamic People (BPRS) of 13.37% unhealthy, with an average overall rating Of Sharia Rural Banks ROA (BPRS) of 0.11% with the predicate less healthy and that the average overall rating Of Sharia Rural Banks CAR (BPRS) amounted to 28.47% with very healthy.

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