Linear Regression Coefficient Research Articles

Optimalkan Kinerja Pegawai: Peran Lingkungan Kerja Fisik dan Pengembangan Karir

This study aims to evaluate the impact of work environment and career development on employee performance at the BPJS Kesehatan Ambon Branch Office. The population involved in this study were 35 employees at BPJS Kesehatan Ambon Branch, who were randomly selected as the research sample. The tool used to collect data is a questionnaire designed to extract information about the variables of Work Environment, Career Development, and Employee Performance. Validity, reliability, normality, multicollinearity, heteroscedasticity, multiple linear regression analysis, t-test, f-test, and coefficient of determination were used to analyze the data. -The findings show that employee performance and work environment at BPJS Ambon Branch have a positive and significant relationship. In addition, at the BPJS Ambon Branch office, there is a noteworthy and positive correlation between employee performance and Career Development. In general, the Ambon Branch BPJS office sees a simultaneous influence between employee performance and work environment. -The findings show that the physical work environment contributes 47.7% to employee performance based on the coefficient of determination (R2).

Method development and validation for the quantitative determination of total flavonoids through the complexation of iron (III) and its application in real sample

BackgroundThe determination of flavonoids in real sample using UV–Vis spectrophotometer commonly uses quercetin and catechin with Al+3 complexing agent as reference materials for the calibration of the instrument. However, getting these standard materials is challenging due to its expense and unavailability in the chemical reserve of the country. Moreover, the Al+3 - quercetin complexation standard method demands high amount of quercetin in spite of its high cost. Hence, developing alternative method that can solve this problem is crucial for the determination of flavonoids in the real sample. ResultsAn iron-based complexation method for the determination of flavonoids in the real sample was developed that reduces the amount of quercetin by 200 times (1 mg/mL to 0.005 mg/mL) during the calibration of UV–Vis spectroscopy as an alternative method. The reaction parameters (incubation time, pH, and concentration of quercetin) were optimized using software Design Expert 11 and confirmed by the practical experiments. The kinetics of reaction between iron and quercetin was found to be pseudo first order with rate constant of kobs at 340 and 510 nm. The analysis window for the flavonoid complex was achieved with the kinetic discrimination of the interferences at its optimized time of complexation 20 min and absorbance maxima of 510 nm. The developed method was validated by evaluating its precision, accuracy, recovery test (84–117%), detection limit and quantification limit following the standard protocols. The calibration of the instrument has been developed for the new method and the linear regression coefficient (R2) of 0.998 was obtained. SignificanceApplying the developed standard material (Fe3+ - quercetin complex) gives freedom for the analytical chemists to find the standard materials that is accessible and cheaper than the existing one (Al3+-quercetin complex). The developed method can also be easily applied for determination of flavonoid in the real samples without potential interferences coming from sample matrix.

PENGARUH KAPASITAS INDIVIDU DAN AMBIGUITAS PERAN TERHADAP BUDGETARY SLACK

This research aims to determine the influence of individual capacity and role ambiguity on budgetary slack. The variables in this research are Individual Capacity (X1) and Role Ambiguity (X2) as independent variables and budgetary slack (Y) as the dependent variable. The population in this study were employees within the Jeneponto Regency SKPD. The sample was selected using the Slovin formula and resulted in 92 respondents as the sample. The data collection technique used is a questionnaire. The data analysis techniques used are descriptive statistical tests, data quality tests, classical assumption tests, multiple linear regression analysis, F tests and coefficient of determination tests. The results of this research show that, based on the results of the descriptive analysis, individual capacity is 3.97 which is classified as high, role ambiguity is 4.49 which is classified as very high and budgetary slack is 4.51 which is classified as very high. From the results of the multiple linear regression test, the equation Y = 30,422 + 418 (X1) + (-117) (X2) is obtained, which means that for each additional value of individual capacity, the value of budgetary slack increases by 434 and for each additional value of role ambiguity, then the budgetary slack value decreased by -117. Based on the results of the t test, significant results were obtained at 0.001 0.05, which means that individual capacity has a significant effect on budgetary slack, thus the first hypothesis is accepted, and the results are significant at 0.209 0.05, which means that role ambiguity has no significant effect on budgetary slack, with Thus the second hypothesis is accepted. Meanwhile, the results of the analysis of the coefficient of determination (r2) obtained a value of (r2) = 0.468 or 46.8 percent. This shows that individual capacity and role ambiguity have an influence on budgetary slack of 46.8 percent, while the remaining 43.2 percent is influenced by other factors.Keywords: Individual Capacity, Role Ambiguity, Budgetary Slack

Dual solutions of Casson Williamson nanofluid with thermal radiation and chemical reaction

The present research is focused on dual Casson Williamson nanofluid with radiation and chemical reactions over stretching/shrinking sheet. Incorporating thermal radiation is significant as it reflects real-world scenarios where heat transfer occurs through radiation. Similarity transformations are utilized to transform governing equations into ordinary differential equation. Further, the shooting algorithm employed with 4th -order Runge-Kutta-Fehlberg method is utilized to solve. Numerical analysis was performed to the simplified nonlinear equations to determine the major outcomes of key factors on concerned boundary layers. In addition, regression analysis is performed and coefficient of linear and quadratic regression is found to be statistically significant. It is determined that both solutions for local Nusselt and Sherwood number are the best suited, based on statistical measures. The studies in earlier publications are compared to the current study, which demonstrates that they are completely in accordance.

Taste and smell function in Wilson's disease

ObjectiveWilson's disease (WD) is a metabolic disorder associated with abnormal copper metabolism that results in hepatic, psychiatric, and neurologic symptoms. No investigation of taste function has been made in patients with WD, although olfactory dysfunction has been evaluated. MethodsQuantitative taste and smell test scores of 29 WD patients were compared to those of 790 healthy controls. Taste was measured using the 53-item Waterless Empirical Taste Test (WETT®) and smell using the 40-item revised University of Pennsylvania Smell Identification Test (R-UPSIT®). Multiple linear regression analysis controlled for age and sex. ResultsAverage WETT® scores did not differ meaningfully between WD and control subjects (respective medians & IQRs = 32 [28–42] & 34 [27–41]); linear regression coefficient = 1.19, 95% CI [−0.81, 3.19], p = 0.242). In contrast, WD was associated with significantly reduced olfactory function [respective median (IQR) R-UPSIT® scores = 35 (33–37) vs. 37 (35–38); adjusted linear regression coefficient = −1.59, 95% CI [−2.34, −0.833]; p < 0.001)]. Neither olfaction nor taste were influenced by WD symptom subtype [23 (79.3%) were hepatic-predominant; 6 (20.7%) neurologic predominant]; R-UPSIT®, p = 0.774; WETT®, p = 0.912). No effects of primary medication or years since diagnosis (R-UPSIT®, p = 0.147; WETT®, p = 0.935) were found. Weak correlations were present between R-UPSIT® and WETT® scores for both control (r=0.187, p < 0.0001) and WD (r=0.237) subjects, although the latter correlation did not reach the 0.05 α level (p = 0.084). ConclusionAlthough WD negatively impacts smell function, taste is spared. Research is needed to understand the pathophysiologic mechanisms responsible for this divergence.

Pengaruh Kualitas Produk, Harga Dan Kualitas Pelayanan Terhadap Kepuasan Pelanggan Jasa Pengiriman Sicepat Ekspres Cabang Kecamatan Nganjuk

This research aims to determine the influence of the variables product quality (X1), price (X2) and service quality (X3) on customer satisfaction (Y) at the Sicepat Express Delivery Service, Nganjuk District Branch. This type of research is quantitative research. The data collection techniques used are primary data and secondary data. The sample selection used the accidental sampling method, the number of samples in the research was 175 respondents at the Sicepat Express Delivery Service, Nganjuk District Branch. This research data was obtained through questionnaires, interviews and literature studies. The data analysis technique was carried out by describing the research data and analysis used, namely Validity Test, Reliability Test, Classical Assumption Test, Multiple Linear Regression Analysis, T Test, F Test and Coefficient of Determination Test. The results of the research obtained the multiple linear regression equation Y = 3.185 + 0.278 0.000 &lt; 0.05. The F test results obtained Fcount results with a significance value of 0.000 &lt; 0.05. From the results of the analysis it can be concluded that product quality (X1), price (X2) and service quality (X3) simultaneously and significantly influence customer satisfaction.

PENGARUH BIAYA PRODUKSI DAN BIAYA PENJUALAN TERHADAP LABA BERSIH PADA SUBSEKTOR MAKANAN DAN MINUMAN YANG TERDAFTAR DI BURSA EFEK INDONESIA

This study aims to determine the effect of Production Cost and Sales Cost on the Net Profit of companies in the food and beverage sub-sector listed on the Indonesian Stock Exchange. The method in this study is the quantitative method. The population in this study includes 26 companies listed on the Indonesian Stock Exchange. Six companies were selected as the research sample. The data in this study is the secondary data obtained from audited annual reports and reported to the Indonesian Stock Exchange. The data analysis techniques in this study are classical hypothesis tests, i.e. normality test, multicollinearity test, heteroscedasticity test, autocorrelation test, multiple linear regression analysis, hypothesis testing, and coefficient of determination test. The results obtained from this study indicated that Production Costs have no significant influence on the Net Profit, while Sales Costs have a significant effect on the Net Profit, and at the same time, Production Costs and Sales Costs affect profits simultaneously.&#x0D; Keywords: Production Cost; Sales Cost; Net Profit

Empirical assessment of the assumptions of ComBat with diffusion tensor imaging.

Diffusion tensor imaging (DTI) is a magnetic resonance imaging technique that provides unique information about white matter microstructure in the brain but is susceptible to confounding effects introduced by scanner or acquisition differences. ComBat is a leading approach for addressing these site biases. However, despite its frequent use for harmonization, ComBat's robustness toward site dissimilarities and overall cohort size have not yet been evaluated in terms of DTI. As a baseline, we match participants from two sites to create a "silver standard" that simulates a cohort for multi-site harmonization. Across sites, we harmonize mean fractional anisotropy and mean diffusivity, calculated using participant DTI data, for the regions of interest defined by the JHU EVE-Type III atlas. We bootstrap 10 iterations at 19 levels of total sample size, 10 levels of sample size imbalance between sites, and 6 levels of mean age difference between sites to quantify (i), the linear regression coefficient of the relationship between FA and age; (ii), the ComBat-estimated site-shift; and (iii), the ComBat-estimated site-scaling. We characterize the reliability of ComBat by evaluating the root mean squared error in these three metrics and examine if there is a correlation between the reliability of ComBat and a violation of assumptions. ComBat remains well behaved for when and when the mean age difference is less than 4 years. The assumptions of the ComBat model regarding the normality of residual distributions are not violated as the model becomes unstable. Prior to harmonization of DTI data with ComBat, the input cohort should be examined for size and covariate distributions of each site. Direct assessment of residual distributions is less informative on stability than bootstrap analysis. We caution use ComBat of in situations that do not conform to the above thresholds.

The influence of groundwater use on land subsidence in Bandung City

Bandung is a developing city with a high need for groundwater for various needs. Many research studies say groundwater usage is one of the causes of land subsidence but the results mostly just take one side either land subsidence or groundwater. If land subsidence can be estimated through the value of groundwater use, then this can help prevent calamity. Therefore, a correlation between groundwater usage and land subsidence is sought to see how much groundwater usage influences land subsidence. Land subsidence research was conducted using the Differential Interferometric Synthetic Aperture Radar (DInSAR) system with the SNAP application. The data used is the use of groundwater from 2017 to 2022 and Sentinel 1-A imagery of six images for annual research and sixty-six images for monthly research. The yield of the average settlement each year from January 2017 to May 2022 is approximately 5cm with a linear regression coefficient of determination of 21% while the groundwater use regression with subsidence per month is not linear but wavy. From this conclusion, another research can be developed regarding other factors causing land subsidence besides the factor of groundwater use which can then be seen how much influence these factors have on land subsidence that occurs.

The Effect of Empowerment and Compensation on the Employee Performance of CV . Siliwangi Palembang

This study aims to determine the effect of empowerment and compensation on employee performance at CV Siliwangi Palembang. The data used are primary and secondary data obtained through the distribution of questionnaires and interviews. The sampling method used is a saturated sample. The data analysis technique used is multiple linear regression analysis, t-test, and coefficient of determination analysis. The results show that there is a positive and significant influence between empowerment (X1) and employee performance (Y). The results of the study obtained the value of the correlation coefficient (R) = 0.944 which shows the influence of empowerment and compensation on employee performance is very strong or close to 94.4%. Furthermore, the value of coefficient of determination (R2) is 0.891 which indicates the contribution of the independent variables (X1) and (X2) to the dependent variable (Y) of 89.1% while the remaining 10.9% can be explained or influenced by other variables not examined in this study. This research is expected to provide benefits to companies in terms of improving employee performance.

Pre-service Education Students’ Commitment Level to Their Career Choice

The study attempted to establish commitment level to career choice of pre-service education students in six public and private universities in Kenya. The third and fourth year pre-service education students were the respondents. Correlational research design and concurrent mixed method approach was employed in this study. Purposive, cluster and convenience sampling methods were used. Data were gathered by the use of questionnaires and interviews. In data analysis, frequencies, means, standard deviation, linear regression and Pearson product moment correlation coefficient were used. The pre-service education students were found to be moderately committed to their career choice. The study recommends Improvement of career guidance in schools so that students clearly understand and choose careers in relation to their interest and abilities because this will increase their commitment to their career choices and reduce the job hopping being experienced in the world of work.

Identifying driving factors in cascaded packed bed latent thermal energy storage: An experimental validation

The cascaded packed bed latent thermal energy storage (PBLTES) system, an innovative and efficient technique, remains unexplored experimentally in terms of driving factors and cyclic stability. To address this gap, this study designed a cascaded PBLTES system, employing three phase-change-materials with varied phase transition temperatures. Parametric experiments were conducted to measure phase transition in capsules and temperature changes in heat transfer fluid. Pearson's correlation coefficients were used to establish relationships between driving factors and thermal performance metrics. This study developed multiple linear regression models based on experimental correlations to evaluate and predict thermal performance under various conditions. These results indicated that the employed multiple regression models are capable of making reliable quantitative predictions regarding the thermal behavior of cascaded PBLTES systems. The models showed a good fit to the experiment data (lowest R2 value at 0.776). The results also showed that the flow rate significantly affected total and phase transition times of the cascaded PBLTES for charging/discharging, with substantial Standardized Linear Regression Coefficients of −0.79/-0.8 and −0.74/-0.72, respectively. In contrast, inlet temperature, with coefficients of −0.18/0.15 and −0.34/0.21, has about a quarter of the flow rate's impact. These findings provide compelling experimental substantiation for the design of cascaded PBLTES.

THE INFLUENCE OF HEDONIC LIFESTYLE AND EMOTIONAL INTELLIGENCE ON STUDENT FINANCIAL BEHAVIOR

Today's lifestyle has become more dominant than just meeting basic needs. Most of the younger generation and college students spend money to fulfill their desires and pleasures by shopping without considering the benefits. This dynamic is influenced by environmental factors, both internal and external as well as technological advances. The purpose of this study is to analyze whether hedonic lifestyle and emotional intelligence are related to the financial behavior of FEB students of Bandar Lampung University (UBL). The sample in this study amounted to 72 students calculated by the Slovin formula. Data analysis is carried out through validity tests, reliability tests, descriptive statistics, multiple linear regression analysis, T tests, F tests, and coefficients of determination. The research findings explained that hedonic lifestyles did not significantly affect students' financial behavior, while emotional intelligence significantly influenced their financial behavior. Taken together or simultaneously, hedonic lifestyle and emotional intelligence have a significant effect on students' financial behavior.

Multiple observers ranked set samples for shrinkage estimators

Ranked set sampling (RSS) is used as a powerful data collection technique for situations where measuring the study variable requires a costly and/or tedious process while the sampling units can be ranked easily (e.g. osteoporosis research). In this paper, we develop ridge and Liu-type shrinkage estimators under RSS data from multiple observers to handle the collinearity problem in estimating coefficients of linear regression, stochastic restricted regression and logistic regression. Through extensive numerical studies, we show that shrinkage methods with the multi-observer RSS result in more efficient coefficient estimates. The developed methods are finally applied to bone mineral data for analysis of bone disorder status of women aged 50 and older.

Pengaruh Motivasi Kerja dan Lingkungan Kerja terhadap Kinerja Karyawan BPJS Ketenagakerjaan Surabaya Karimunjawa

In an organization it is important to pay attention to all aspects related to human resources, this is because it is able to become an effort that moves every component in the organization's operations. BPJS Ketenagakerjaan as a public legal entity responsible for administering various Employment Social Security Programs for workers throughout Indonesia has an important role in realizing the welfare of workers. Therefore, through this research, we will measure the influence of work motivation and work environment provided by each permanent employee through performance results at BPJS Ketenagakerjaan Surabaya Karimunjawa. It should be noted that this study used a quantitative method with saturated sampling, where the samples taken were obtained from all members of the population contained therein. In this case it covers all permanent employees of BPJS Ketenagakerjaan Surabaya Karimunjawa, totaling 34 permanent employees. In order to assist the data analysis process, this research uses validity, reliability, classical assumptions, multiple linear regression analysis, F test (simultaneous), t test (partial) and coefficient of determination test (R2). The results obtained stated that there was a simultaneous effect of the variables Work Motivation and Work Environment on the Performance of Permanent Employees of BPJS Ketenagakerjaan Surabaya Karimunjawa. As for the partial effect, the results show that the variable Work Motivation has a partial positive and significant effect on the Performance of Permanent Employees of BPJS Ketenagakerjaan Surabaya Karimunjawa. However, it does not have a partial and significant effect on the Work Environment variable

The Effect of Traditional Market Relocation on Traders' Income

This research aims to determine and analyze the magnitude of the influence of the relocation of the traditional market in Muara Sabak Barat District on traders' income. This research uses a quantitative approach and data analysis. The data analysis used is simple linear regression analysis, T test, and coefficient of determination (R²). The samples used were 110 traders with 30 samples for trials and 80 samples for research. The results of the research are that relocation has a positive effect on traders' income in the Muara Sabak Barat sub-district market. A significant value of 0.00 was obtained which was smaller than 0.05 and the calculated t value was 3.675 which was greater than the t table of 1.990. Based on the coefficient of determination test, the R square (R²) result was 0.148, this means that 14.8% of the income variable can be explained by the relocation variable in this research, while the remaining 85.2% is a variable outside this research. So, it can be concluded that Ho is rejected and Ha is accepted, which means that traditional market relocation has an influence on the income of traditional market traders in Muara Sabak Barat subdistrict with the income variable being influenced by relocation by 14.8%, the remaining 85.2% is influenced by other factors outside this research

Effect of Happy Work Environment on Innovative Work Behaviours: Analytical Research in the Ministry of Higher Education and Scientific Research

The current research aims to test the effect of a happy work environment on Innovative work behaviors, as a stratified random sample of (328) employees of the departments of the Ministry of Higher Education and Scientific Research was selected from the study population of (2229). Relying on the questionnaire in collecting data, the questionnaires suitable for statistical analysis were (322) questionnaires, as the happy work environment variable includes five dimensions: (credibility, respect, fairness, pride, true friendship), while the Innovative work behavior variable dealt with four dimensions (ability Providing Innovative solutions to problems, the ability to come up with new ideas and proposals, change, initiative, and the spirit of risk), and the idea of ​​the research revolves around providing a happy work environment that contributes to and supports Innovative work behaviors. The researcher used several statistical methods to analyze the questionnaire results, including a simple linear regression coefficient. Simple and descriptive analysis using the program (SPSS.v23, AMOS.v23), and the hypotheses were proven correct by finding an effect of a happy work environment in its dimensions on Innovative work behavior in its dimensions. A set of results has also been reached, among which are doubts or concerns about the reliability of management information and procedures, as well as some gaps or deficiencies in the control processes and the audit system, it appears that the responsible management is not at a good level in managing work and fulfilling commitments and promises towards its employees, as well as being informed. On issues and tasks related to work, and from this perspective it is due to several reasons, including the managerial skills possessed by managers that are not sufficient or inconsistent with the specialty of the work assigned to them, and that management capabilities are limited and rely on performing their tasks in a normal or average manner without skill or exceptionality.

On the Importance of a Geostationary View for Tropical Cloud Feedback

AbstractThis study shows that geostationary satellites are critical to estimate the accurate cloud feedback strength over the tropical western Pacific (TWP). Cloud feedback strength was calculated by the simultaneous relation between cloud cover and sea surface temperature (SST) over the TWP [120°E–170°E, 20°S–20°N]. During 2011–2018, the cloud cover was obtained by geostationary earth orbit satellite (GEO) and low‐level earth orbit satellite (LEO) (AGEO, ALEO), and the NOAA's all‐sky SST (To) was weighted with the clear‐sky fraction observed by GEO and LEO (TwGEO; TwLEO). The linear regression coefficients between clouds and SST are very different: −7.93%K−1 (AGEO/TwGEO), −6.94%K−1 (ALEO/TwGEO), −1.35%K−1 (AGEO/TwLEO), −0.69%K−1 (ALEO/TwLEO), −0.02 %K−1 (AGEO/To), and −0.50 %K−1 (ALEO/To). Among these, only the TwGEO values provided a valid cloud feedback signal. This is because GEO's field of view is large enough to simultaneously capture cloud cover over the entire TWP.

Peran Ambideksteritas Dinamis dalam Efektivitas Pimpinan dan Dukungan Organisasi terhadap Pemecahan Masalah di Home Industri Bapak Sukir Desa Wedoro

This study aims to determine the role of dynamic ambidexterity in the effectiveness of leadership and organizational support for problem solving in the home industry of Mr. Sukir Wedoro Village. This research method uses quantitative methods. The population in the study was about 40 employees located in Wedoro, East Java. In this study, using primary data by distributing questionnaires to each employee in the home industry. For data testing carried out using validity tests, reliability tests, respondent characteristics, normality tests, multicholinearity tests, heterochedasticity tests, linear regression analysis, hypothesis test (Partial Test, Simultaneous Test), and coefficient of determination. The data were processed using multiple linear regression analysis after testing for validity and reliability. (1) Leadership Effectiveness has no positive and significant effect on Problem Solving, (2) Dynamic Ambidexterity has a positive and significant effect on Problem Solving, (3) Organizational Support has a positive and significant effect on Problem Solving. This research contributes to understanding the Role of Dynamic Ambidexterity In Leadership Effectiveness And Organizational Support Towards Problem Solving. Based on the results of the analysis, not all variables have a positive and significant effect except for the Leadership Effectiveness variable does not have a positive and significant effect on Problem Solving. In addition to the Leadership Effectiveness variable, other variables such as the Dynamic Ambidexterity variable and the Organizational Support variable have a positive and significant effect. This research was only conducted in Mr. Sukir's industrial home in Wedoro village. Therefore, the collected data has a low normal level value

Pengaruh Pengetahuan Pajak, Kebijakan Insentif Pajak dan Pelayanan Fiskus Terhadap Kepatuhan Wajib Pajak

The purpose of this study was to test and analyze the effect of tax knowledge, tax incentive policies and fiscal services on taxpayer compliance. This research method uses quantitative research methods, with the type and source of data, namely primary data obtained by distributing questionnaires to individuals in South Tambun. The population and sample of this study were individual taxpayer compliance in South Tambun. The sampling technique used was purposive sampling technique and resulted in 100 samples of processed data that met the criteria. The analysis method used is descriptive statistical test, validity test, reliability test, classical assumption test, multiple linear regression analysis and coefficient of determination analysis, and hypothesis testing. The results of this study indicate that tax knowledge affects taxpayer compliance, tax incentive policies affect taxpayer compliance, taxpayer services affect taxpayer compliance, tax knowledge, tax incentive policies, and taxpayer services simultaneously have a significant effect on taxpayer compliance.