scholarly journals Anti-Termites Properties of Liquid Smoke from Bintangur Wood

2021 ◽  
Vol 9 (3) ◽  
pp. 400-410
Author(s):  
Hasan Ashari Oramahi ◽  
Farah Diba ◽  
Juanita

Wood and wood-based products are very vulnerable to termite attacks. One of the methods to control termite attacks is using chemical insecticide. However, the use of chemical insecticide is considered a negative effect on the environment. The aim of this research was to determine the anti-termite properties of liquid smoke against Coptotermes curvignathus Holmgren. The liquid smoke derived from bintangur wood pyrolysis at 370°C, 400°C, and 430°C was assessed as an anti-termite activity. Anti-termite activities against C. curvignathus were conducted by using liquid smoke with the concentration of 2%, 4%, 6%, and 8% (v/v). Simple linear regression was used to measure the effect of liquid smoke concentration against C. curvignathus. The results showed that the liquid smoke concentration of 6% and 8% at the three pyrolysis temperatures effectively controlled the subterranean termite's attack and resulted in 100% termites mortality. The chemical content of bintangur wood vinegar has contained phenol (1.23–1.65%) and acid (4.33–6.68%). Keywords: acid content, antitermitic activity, bintangur wood, phenol content, wood vinegar

2019 ◽  
Vol 6 (2) ◽  
pp. 1-8
Author(s):  
Maria Emas P. Siallagan ◽  
Yansen Siahaan ◽  
Jubi Jubi ◽  
Ady Inrawan

The purposes of this research are to know the description of profitability, firm value, and leverage, to determine the effect of profitability on the value and to determine leverage ability to moderated profitability reletionships with firm value  at  Farmasi Sub-Sector Company listed on the Indonesia Stock Exchange. The research was conducted with qualitative descriptive analysis method and quantitative descriptive analysis. The data are collected  by using documentation method. The analysis technique used simple linear regression, moderation regression, correlation coefficient, determination coefficient and hypothesis test. Data are analysed with the help of SPSS version 20.          The results of this research be summarized as follows: 1. Average ROE fluctuated and tended to decline, the average DER fluctuated and tended to increase, and the average PBV fluctuated and tended to increase. 2. The results of simple linear regression test showed that profitability has negative effect on firm value. 3. The results of the moderation regression test showed that leverage weakens the profitability relationship with the value. 4. The results of testing the first hypothesis can be concluded that profitability has a negative effect not significant on firm value. 5. The results of the second hypothesis test can be concluded that leverage is  able to moderate the relationship between profitability and firm value.The research suggest that companies increase sales to optimize profits, use debt to increase company productivity, control the existing management of the company and distribute dividend to shareholders.


2020 ◽  
Vol 9 (2) ◽  
pp. 19
Author(s):  
Nanda Fitri Yenny ◽  
Khairil Anwar

This research was conducted in Lhokseumawe City and the aim is to see the effect of population on economic growth in the city of Lhokseumawe. The data used in this research is secondary data sourced from the Central Statistics Agency (BPS) for 18 years from 2001-2018. The data analysis method used in this research is simple linear regression. The results of this study indicate that the population variable does not have a negative effect on population growth and the magnitude of the influence of the population variable on economic growth is 0.0938 (9.38%).


2020 ◽  
Vol 2 (4) ◽  
pp. 227-240
Author(s):  
Virginia Maria Clarita Berek ◽  
Yeni Damayanti ◽  
Indra Yohanes Kiling

Stress occurs as a state under the pressure both physically and psychologically which blocks the individual’s and caused by the difference between what is expected to achieve and what is achieved. Individuals fail to achieve the goal because they cannot focus their attention directly and taking an action without awareness. The purpose of this study is to identify the effect of mindfulness on the stress of college students. This study hypothesizes that mindfulness has a negative effect on the stress of college students. The participants of this study were 400 college students of FKM Undana Kupang, aged 18-24 years old who were obtained by using simple random sampling. The analysis in this study used simple linear regression analysis. The results of this study indicate that the value (sig) = 0.000 < 0.05 and the value of t count > the value of t table i.e. as the amount of 5,644 > 2.249, means that there is a negative effect of mindfulness on college student’s stress, the increasing influence of mindfulness, the decreasing stress on college students.


Author(s):  
Candra Yudi Prasetyo Sudarmiani

This study aims to determine the effect of job satisfaction on turnover intention of<br />employees at the CV Nedika Isabella Kawedanan Magetan, to determine the turnover<br />intention of employees at the CV Nedika Isabella Kawedanan Magetan, as well as to<br />determine whether there is influence of job satisfaction on turnover intention on the CV<br />Surya Nedika Isabella Kawedanan Magetan. Determination of the sample in this study using<br />the sample Nonprobability sampling technique of sampling Purposive Sampling that is as<br />much as 70 employees. The data collection instrument uses a Likert scale questionnaire that<br />has been tested and validated and validity and reliability. Data analysis using simple linear<br />regression then t test. In releasing the data using the help of SPSS for windows version 22.0.<br />pnenlitian results showed that job satisfaction has a negative effect on turnover intention on<br />the CV Surya Nedika Isabella Kawedanan Magetan. Results of simple linear regression Y =<br />69.919 - 0,228X, meaning that if the job satisfaction increased by 1%, the turnover intention<br />fell by 0.228. The results obtained Sighit value is 0.000 while


Author(s):  
Eka Ambara Harci Putranta ◽  
Lilik Ambarwati

The study aims to analyze the influence of internal banking factors in the form of: Capital Adequency Ratio (CAR), Financing to Deposit Ratio (FDR) and Total Assets (TA) to Non Performing Financing at Sharia Banks. This research method used multiple linear regression analysis with the help of SPSS 16.00 software which is used to see the influence between the independent variables in the form of Capital Adequacy Ratio (CAR), Financing to Deposit Ratio (FDR) and Total Assets (TA) to Non Performing Financing. The sample of this study was 3 Islamic Commercial Banks, so there were 36 annual reports obtained through purposive sampling, then analyzed using multiple linear regression methods. The results showed that based on the F Test, the independent variable had an effect on the NPF, indicated by the F value of 17,016 and significance of 0,000, overall the independent variable was able to explain the effect of 69.60%. While based on the partial t test, showed that CAR has a significant negative effect, Total assets have a significant positive effect with a significance value below 0.05 (5%). Meanwhile FDR does not affect NPF.


10.32698/0642 ◽  
2019 ◽  
Vol 2 (2) ◽  
pp. 120
Author(s):  
Wiwi Delfita ◽  
Neviyarni S. ◽  
Riska Ahmad

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.


2019 ◽  
Vol 4 (2) ◽  
pp. 17
Author(s):  
Dedy Mulyadi ◽  
Didik Purwanto

The question of compensation in addition to sensitive to be driving someone to worl due to an effect on morale and discipline employees. Therefore , any  agency or any organization should be able to provide compensation equal to the workload  to create a workforce that efficient and effective manner can be realized. Amaore than that, the company’s goal to improve performance. Performance assessment is a subjective process that involves human judgments. Thus, performance assessment is very likely wrong and very easily influonced by sources that are not actual, so it must be taken into account and considered reasinable. Frformance appraisals are considered  to meet the target if it has a good impact on new employees who rated their performance. Simple linear regression analysis using SPSS version 12:00 data processing obtained tegression equation Y = 0,487 X 74 + with an explanation of X = award, 74 = constant, 0.487 = coefficient awards, and Y = performance based on simple linear regression equation in case of increase of one unit of the  performance award will be increased 0.487 units. If company policy negates the performance award will remain at a constant rate (74) units . (A) Test results obtained thitung significant constants of (12.574) > t table for (1.960 then reject Ho constanta significant meaning. (B) significant Test award coefficient t count the results obtained by (2.164)> t table foe (1.96) then reject Ho the mean coeffent of appreciation affect the performance . (C) correlation coefficient analysis is done by calculating the product moment corration (pearson)  to test  whether or not a strong  relationship between the variables X  dan Y , based on the results of cakculations with SPSS  table valuse obtained by calculating the  correlation coefficient r (0.3100> r on the table for a = 0,05 (0.291) then reject Ho, which means there is a relationship of respect for performance. When we enter these valuse in the table shows the interpretation of the correlation coefficient between the interval from 0.20 to 0.399 which has a low relationship


2019 ◽  
Vol 10 (9) ◽  
pp. 902-909
Author(s):  
Umbas Krisnanto ◽  
◽  
Conny Marpaung ◽  

This study aims to determine and analyze the influence of Service Quality and Customer Satisfaction on Customer Loyalty in Jabodetabek Commuter Line. The sample of this study was 50 people. Methods of collecting data by distributing questionnaires. Data analysis using the analysis used is simple linear regression, t test and coefficient of determination. The results showed 1) Service Quality has a positive and significant effect on Customer Loyalty in Jabodetabek Commuter Line, with a significance level of 0.048; and supported by the results of hypothesis testing with a t-count value of 4.433 > t-table value of 1.95, with a significance of 0.048 or < 0.05; 2) Customer Satisfaction positive and significant effect on Customer Loyalty in Jabodetabek Commuter Line, with a level significance of 0,000; and supported by the results of hypothesis testing with a t-count value of 4,969 > t-table value of 1.95, with a significance of 0,000 or < 0.05, 3) Service quality and Customer Satisfaction have a positive and significant effect on Customer Loyalty in Jabodetabek Commuter Line, with a significance level of 0,000. This means that the hypothesis H0 is rejected and Ha is accepted so that it can be concluded that service quality and customer satisfaction together have a positive and significant effect on customer loyalty in Jabodetabek Commuter Line.


2014 ◽  
Vol 6 (1) ◽  
pp. 35 ◽  
Author(s):  
Rizka Karima

There’s so many pal solid waste or palm empty fruit bunches, but the utilization is not maximized, this research its to optimized utilization of palm solid waste to be wood vinegar and want to know the composition physical properties and chemical properties of wood vinegar from palm empty fruit bunches. Total yield of wood vinegar from palm empty fruit bunches its 15,94 % and total yield of charcoal its 64,58 %. GCMS result showing chemical properties from wood vinegar of burning < 100oC its obtained 19 compound and burning >100 oC its obtained 6 compound. The result physichal properties testing from crued wood vinegar its obtained specific gravity 1,0005 and 1,0010, pH value are 3,233 and 3,186, TAT content are 9,36 % and 11,12 %, phenol content its 0,44 %. The result physical properties testing from wood vinegar which has decolorizatin by activated carbon its obtained specific gravity are 0,9987 and 0,999, pH value are 3,036 and 3,012, TAT content are 8,29 % and 9,27 % and phenol content its 0,01 %.Keywords: palm bunches, wood vinegar, liquid smoke


2019 ◽  
Vol 3 (2) ◽  
pp. 26
Author(s):  
Niken Ayu Wulandari ◽  
Tegoeh Hari Abrianto ◽  
Edi Santoso

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.


Sign in / Sign up

Export Citation Format

Share Document