NATIVE FIXED AMMONIUM AND FIXATION OF ADDED AMMONIUM IN RELATION TO CLAY MINERALOGY IN SOME ONTARIO SOILS

1983 ◽  
Vol 63 (3) ◽  
pp. 631-639 ◽  
Author(s):  
D. R. DORAM ◽  
L. J. EVANS
Keyword(s):  
Regression Analysis ◽  
Linear Regression ◽  
Key Words ◽  
Total Nitrogen ◽  
Clay Mineralogy ◽  
Soil Profiles ◽  
Regression Analyses ◽  
Simple Linear Regression ◽  
Southern Ontario

Six soil profiles belonging to the Brookston, Lockport, Guelph, Chinguacousy and Haldimand series were sampled in southern Ontario. Illite contents of the clay fractions ranged from 25 to 56% and vermiculite contents ranged from 13 to 53%. The native fixed ammonium content varied from 57 to 367 μg/g and accounted for between 3 and 44% of the total nitrogen, being proportionally less in Ap horizons. Results of simple linear regression analyses demonstrated significant correlations of native fixed ammonium with percentages of clay, illite, illite plus vermiculite and K2O. The amount of ammonium fixed increased with increasing concentration of added ammonium up to the highest rate of application (2000μg NH4+/g soil). Regression analysis indicated that vermiculite was more important in the fixation of added NH4+ than illite. Studies on Ap horizons comparing the amount of NH4+ fixed with the amount of K− fixed for equivalent amounts of added cation showed that K+ was fixed in greater quantities than NH4+. Key words: Native fixed NH4+, NH4+ fixation, clay mineralogy

scholarly journals Employee performance in Bappeda Palembang as perceived through interpersonal communication and work environment

2021 ◽  
Vol 7 (1) ◽  
pp. 147
Author(s):  
Yasir Arafat ◽  
Tri Darmawati ◽  
Harridlil Mukminin
Keyword(s):  
Regression Analysis ◽  
Linear Regression ◽  
Multiple Linear Regression ◽  
Work Environment ◽  
Interpersonal Communication ◽  
Employee Performance ◽  
Linear Regression Analysis ◽  
Regression Analyses ◽  
Simple Linear Regression ◽  
Simple Linear Regression Analysis

The purpose of this study was to determine the effect of interpersonal communication and the work environment on employee performance in Bappeda Palembang. The sample was 40 employees in Bappeda  Palembang. The survey for this study is based on 40 workers as respondents. Data were gathered and organized into a list of questions. The spss for Windows version 22 was used to analyze the outcomes using simple linear regression analysis, multiple linear regression analyses, t-tests, and f-tests. The interpersonal communication has a partially negative and insignificant effect on employee performance, work environment has a positive and significant effect on employee performance. Furthermore, obtained interpersonal communication as well as the workplace environment have a significant impact on employee performance.

The Contribution of Sexual Identity Towards the Students’ Perception of Lesbian, Gay, Bisexual, and Transgender

10.32698/0642 ◽  
2019 ◽  
Vol 2 (2) ◽  
pp. 120
Author(s):  
Wiwi Delfita ◽  
Neviyarni S. ◽  
Riska Ahmad
Keyword(s):  
Regression Analysis ◽  
Linear Regression ◽  
Sexual Identity ◽  
Student Perceptions ◽  
Undergraduate Students ◽  
Linear Regression Analysis ◽  
Sampling Technique ◽  
Simple Linear Regression ◽  
Simple Linear Regression Analysis ◽  
Bisexual And Transgender

Some students perceive lesbian, gay, bisexual, and transgender (LGBT) positively, even though LGBT is a sexual deviation that is not appropriate with values and norms. There are several factors that influence an individual's perception of LGBT, including sexual identity. This study aims at looking at the contribution of sexual identity to student perceptions about LGBT. This research used a quantitative approach with a descriptive method and a simple linear regression analysis. The sample of this research was 385 taken from 15.752 undergraduate students of Universitas Negeri Padang which the sample was drawn by using the Slovin formula and continued with a Proportional Random Sampling technique. The instrument used was the Guttman model's sexual identity scale and the scale of students' perceptions of the LGBT Likert model. After analyzing the data with the descriptive technique and the simple linear regression analysis, the results showed that sexual identity significantly contributed to the students' perceptions of LGBT. This research has implications as a basis for counselors to help students avoid sexual identity mismatches and prevent the emergence of positive perceptions of LGBT.

PENGARUH INTELLECTUAL CAPITAL TERHADAP KINERJA KEUANGAN PADA PERUSAHAAN BARANG KONSUMSI YANG TERDAFTAR DI BEI TAHUN 2015-2017

2019 ◽  
Vol 3 (2) ◽  
pp. 26
Author(s):  
Niken Ayu Wulandari ◽  
Tegoeh Hari Abrianto ◽  
Edi Santoso
Keyword(s):  
Regression Analysis ◽  
Linear Regression ◽  
Financial Performance ◽  
Intellectual Capital ◽  
Stock Exchange ◽  
Linear Regression Analysis ◽  
Sampling Technique ◽  
Simple Linear Regression ◽  
Return On Equity ◽  
Asset Turnover

This research to analyze and evaluate intellectual capital on financial performance obtained by return on equity, asset turnover and growth in revenue. The population in this study are consumer goods companies listed on the Stock Exchange in 2015-2017. The research sample was received by 21 companies obtained by using purposive sampling technique. The analytical method used is simple linear regression analysis with the SPSS version 20 application and uses the VAICTM method to measure intellectual capital. The results of this study indicate that intellectual capital has a significant effect on financial performance generated by return on equity, but intellectual capital does not have a significant effect on financial performance required by asset turnover and growth in revenue.

scholarly journals Trends in the Retinal Nerve Fiber Layer Thickness Changes with Different Degrees of Visual Field Defects

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Wenhui Geng ◽  
Dabo Wang ◽  
Jing Han
Keyword(s):  
Regression Analysis ◽  
Visual Field ◽  
Linear Regression ◽  
Nerve Fiber ◽  
Retinal Nerve Fiber Layer ◽  
Linear Regression Analysis ◽  
Simple Linear Regression ◽  
Fiber Layer ◽  
Simple Linear Regression Analysis ◽  
Rnfl Thickness

Purpose. To explore the disease progression of primary open-angle glaucoma (POAG) in individuals with different degrees of VF defects by analyzing the trends in retinal nerve fiber layer (RNFL) changes at each stage. Methods. A total of 39 patients (77 eyes) were divided into three groups based on the severity of glaucomatous visual field (VF) loss: the first group included patients with mild baseline VF defects (mild group; n = 21 eyes). The second group included patients with moderate VF defects (moderate group; n = 18 eyes). The third group included patients with severe baseline VF defects (severe group; n = 38 eyes). For all patients, slit-lamp biomicroscopy of the anterior and posterior segments and detailed fundus and optic disc inspections were performed, the intraocular pressure (IOP) was measured by Goldman tonometry, best-corrected visual acuity (BCVA) was measured, the RNFL thickness was measured by OCT, and the VF was assessed by the Octopus perimeter. All the groups were followed up postoperatively for 18 months. Results. The mean RNFL thickness was recorded for all the visits. Using simple linear regression analysis, we found that the R2 values of the three groups were 0.988, 0.982, and 0.814, respectively, and the slopes of mean RNFL thickness changes for mild, moderate, and severe baseline VF defects were −0.088, −0.082, and −0.015, respectively. Moreover, we used simple linear regression analysis to explore whether and how the speed of RNFL thinning differs across groups. The R2 values of the three groups were 0.982, 0.978, and 0.805, respectively, and the slopes for mild, moderate, and severe baseline VF defects were 0.089, 0.085, and 0.017, respectively. Conclusion. The rate of RNFL thinning is linear; RNFL thinning is the fastest in individuals with mild baseline VF defects, followed by those with moderate baseline VF defects. In individuals with severe VF defects, changes in the RNFL thickness do not appropriately reflect the progression of the disease. The clinical trial is registered with ChiCTR2000028975.

Effect of Product Turnover on Company Performance of SMEs

2021 ◽  
Vol 1 (3) ◽  
pp. 115-119
Author(s):  
Agus Sobar ◽  
Asep Deni ◽  
Riki Riswandi ◽  
Dendi Zainuddin Hamidi ◽  
Indra Permadi
Keyword(s):  
Regression Analysis ◽  
Linear Regression ◽  
Small And Medium Enterprises ◽  
Linear Regression Analysis ◽  
Measurement Model ◽  
Industrial Sector ◽  
Company Performance ◽  
Simple Linear Regression ◽  
Medium Enterprises ◽  
Positive Effect

Research related to the effect of product turnover on the performance of companies in the industrial sector is still needed to do research and study in depth. This is needed because the developed sector, especially related to product rotation, has an important role in advancing the sustainability of the company. The research methodology in this research is descriptive quantitative using simple linear regression analysis and using SPSS v 23 and Amos v 23 software as a calculation tool through a measurement model using simple Linear Regression at 87 MSMEs in Sukabumi City. The results of this study indicate a positive effect of product turnover on the performance of Small and Medium Enterprises.

scholarly journals HUBUNGAN PERSEPSI TENTANG PROFESI FISIOTERAPI DENGAN MOTIVASI BELAJAR MAHASISWA AKADEMI FISIOTERAPI UKI

2018 ◽  
Vol 10 (3) ◽  
pp. 226
Author(s):  
Maksimus Bisa
Keyword(s):  
Regression Analysis ◽  
Linear Regression ◽  
Correlation Analysis ◽  
Correlation Coefficient ◽  
Linear Regression Analysis ◽  
Motivation To Learn ◽  
Simple Linear Regression ◽  
Level 1 ◽  
Relationship Of ◽  
The Relationship

ABSTRACTThis study is descriptive analitik, aims to describe the relationship of perceptions about the physiotherapy profession with the motivation to learn students of the Academy of Physiotherapy UKI. Data collection through questionnaires to students of Physiotherapy Academy UKI level 1, 2, and 3 with a sample of 53 students, then give a score of each statement of questionnaire.The result of correlation analysis shows that p = 0,584> α (0,05) ho is accepted, so there is no significant relationship between the two variables. To measure the closeness and intensity of the relationship between the two variables, test of correlation coefficient and simple linear regression. The result of correlation coefficient test (r) obtained by -0,077, lies below the value of -0.30 (very weak) thus can be said there is no relation between perception about physiotherapy profession with motivation learn student Akfis UKI. Result of linear regression analysis obtained equation: Y = 73,52 + (-0,088) X. This means that every 1 point decrease of perception value will influence motivation value equal to 0,088 times.Keywords: Perception, motivation, physiotherapy profession, and learning achievement. ABSTRAKPenelitian ini bersifat deskriptif analitik, bertujuan untuk mendeskripsikan hubungan persepsi tentang profesi fisioterapi dengan motivasi belajar siswa Akademi Fisioterapi UKI. Pengumpulan data melalui kuesioner kepada siswa Fisioterapi Academy UKI tingkat 1, 2, dan 3 dengan sampel sebanyak 53 siswa, kemudian memberikan skor masing-masing kuesioner pernyataan. Hasil analisis korelasi menunjukkan bahwa p = 0,584> α (0,05) ho diterima, sehingga tidak ada hubungan yang signifikan antara kedua variabel tersebut. Untuk mengukur kedekatan dan intensitas hubungan antara kedua variabel tersebut, uji koefisien korelasi dan regresi linier sederhana. Hasil uji koefisien korelasi (r) diperoleh sebesar -0,077, berada di bawah nilai -0,30 (sangat lemah) sehingga dapat dikatakan tidak ada hubungan antara persepsi tentang profesi fisioterapi dengan motivasi belajar siswa Akfis UKI. Hasil analisis regresi linier diperoleh persamaan: Y = 73,52 + (-0,088) X. Artinya setiap 1 titik penurunan nilai persepsi akan mempengaruhi nilai motivasi sebesar 0,088 kali.Kata kunci: Persepsi, motivasi, profesi fisioterapi, dan prestasi belajar.

scholarly journals IMPLANTS AND INJECTIONS ARE FAVORITE CONTRACEPTION TOOLS IN SUMATERA SELATAN

2019 ◽  
Vol 5 (3) ◽  
pp. 147-150
Author(s):  
Mukni Mukni
Keyword(s):  
Regression Analysis ◽  
Family Planning ◽  
Linear Regression ◽  
Linear Regression Analysis ◽  
Simple Linear Regression ◽  
Contraceptive Methods ◽  
Poverty Level ◽  
Short Term ◽  
Simple Linear Regression Analysis

Background: The choice of contraception by family planning acceptors greatly determines the success rate of the family planning program, because not all contraceptives are suitable for someone. This study aims to determine what types of contraceptives chosen by family planning acceptors and whether there is a relationship between the selection of contraceptives there is a relationship with the poverty level in the District / City in South Sumatra in 2015, 2016 and 2017. The source of data obtained from the Provincial BPS South Sumatra. Methodology: This study uses a descriptive approach with a simple linear regression analysis method. Results: The results of the analysis were grouped into two, first long-term contraception method KB IUD, MOW, MOP and implants, both short-term contraceptive methods namely injection KB, pill and condom from 17 regencies / cities in South Sumatra. Conclusion: contraception devices that are mostly chosen by long-term contraceptive methods are implants (10000-35000) or 10-20 times larger than other contraceptives. Short-term contraceptive methods are injections, (7700 - 76000) or 5-7 times greater than other contraceptives. From the simple linear regression analysis it turns out that the relationship of long-term contraceptive selection by acceptors with the poverty level is R² = 0.7382 and the short-term method R² = 0.9223. District / City Governments in South Sumatra should provide alokon (contraceptive devices and drugs) in accordance with the type and amount in the field to be on target

scholarly journals The Effect of Exchange Value on the Stock Index Listed in Indonesia Stock Exchange during Covid-19 Pandemic

2021 ◽  
Vol 2 (1) ◽  
pp. 6-14
Author(s):  
Zahra Zhafira ◽  
Einde Evana ◽  
Ratna Septiyanti
Keyword(s):  
Regression Analysis ◽  
Exchange Rate ◽  
Linear Regression ◽  
Exchange Rates ◽  
Stock Exchange ◽  
Linear Regression Analysis ◽  
Stock Index ◽  
Simple Linear Regression ◽  
Simple Linear Regression Analysis ◽  
Stock Indices

This study aims to examine the effect of exchange rates on the stock index during the Covid-19 pandemic. This research was conducted using secondary data. The population in this study were all stock indices listed on the Indonesia Stock Exchange with a sample size of 89 and a total stock index of 34. The study period was 4 months, 17 January 2020 to 20 May 2020. The sample data collection of this study used the purposive method. Sampling with world economic conditions and Indonesia which are weakening due to the Covid-19 pandemic and based on the phenomenon that the exchange rate is experiencing a continuous movement even every year the exchange rate depreciates IDR against the US Dollar. One of the causes of the high fluctuation of the rupiah exchange rate against the dollar came from economic factors such as inflation, the interest rate on Bank Indonesia certificates during the Covid-19 pandemic. This study uses a simple linear regression analysis method using SPSS V.26. The results of simple linear regression analysis show that exchange rates have a negative and significant effect on all stock indices listed on the Indonesia Stock Exchange, these results have similarities or differences with the results of research in other emerging market countries.

scholarly journals THE ANALYSIS OF OIL CONTENT IN SEDIMENT AND COMMUNITY STRUCTURE OF MACROZOOBENTHOS IN BELAWAN WATERS OF MEDAN CITY, NORTH SUMATERA PROVINCE

2020 ◽  
Vol 3 (2) ◽  
pp. 167-178
Author(s):  
Doli Juna Setia Tanjung ◽  
Bintal Amin ◽  
Syafruddin Nasution
Keyword(s):  
Community Structure ◽  
Linear Regression ◽  
Oil Content ◽  
Diversity Index ◽  
The Other ◽  
Regression Analyses ◽  
Simple Linear Regression ◽  
Dominance Index ◽  
Ocypode Quadrata ◽  
Evenness Index

This research was conducted in March 2019 to determine the oil content in sediment, it’s community structure of macrozoobenthos and it’s a relationship in Belawan Waters of Medan City, North Sumatera. Four sampling stations with five replications in each station were surveyed. The results showed that the average oil content in sediments exceeded the threshold had set by the National Academy of Science. Macrozoobenthos found consists of Ocypode quadrata, Scyla serrate, Rotun dicauda, Penaeus sp, Murex tribulus, and Nassarius olivaccus. The highest abundance was in Station 3 and the lowest was in Station 2. The diversity index in each station was generally very low. Dominance Index in Station 4 was medium, whilst the other stations were high. Evenness index showed in Station 3 and 4 were in high population, Station 1 was in medium population and Station 2 was in low population. Simple linear regression analyses between oil content in sediment with community structure of macrozoobenthos indicated negative correlation ( Y = 10,5-0,0001x , R2 = 0,0004 and r = 0,02 ) which indicated that the higher the oil content, the lower the macrozoobenthos abundance in sediment.

scholarly journals HUBUNGAN PERSEPSI KEARIFAN LOKAL DENGAN SIKAP KONSERVASI MASYARAKAT DESA LENCOH KECAMATAN SELO DI TAMAN NASIONAL GUNUNG MERAPI

Biosfer ◽  
2018 ◽  
Vol 9 (1) ◽  
pp. 65-69
Author(s):  
Ernawati Ernawati ◽  
Eka Putri Azrai ◽  
Sri Supardi Wibowo
Keyword(s):  
Regression Analysis ◽  
Linear Regression ◽  
Natural Resources ◽  
Local Knowledge ◽  
Strong Correlation ◽  
National Park ◽  
Linear Regression Analysis ◽  
Simple Linear Regression ◽  
Pearson Product Moment Correlation ◽  
Village People

Local wisdom refers to ideas and local knowledge which are wise, full of wisdom, good and virtuous beliefs that made, owned, also carried out by local people in that area. People of Lencoh village are applying local wisdom filled with Javanese culture in order to interact with the environment and use natural resources. This study aims to determine the correlation between perception of local wisdom and conservation attitude of Lencoh village people in Mount Merapi National Park. The study was conducted in Lencoh village, Selo sub-district in January 2016. The method used is the descriptive methods with correlational study. There are 95 respondents from the three hamlets. The data is using questionnaires and interviews. The results showed 56,84% and 43,16% of respondents have a enough and high local wisdom perception, and 8,42% and 91,58% of respondents have a enough and good conservation attitude. Hypothesis is tested using simple linear regression analysis, obtained Y = 47.262 + 0.703X and Pearson Product Moment Correlation test at α = 0.01, obtained rxy = 0.678 indicates a strong correlation between local wisdom perception and conservation attitude of a Lencoh village people. The results of this research prove there is a positive correlation between local wisdom perception and conservation attitude of Lencoh village people on Mount Merapi National Park.

Sign in / Sign up

Export Citation Format

Share Document