scholarly journals RODOLFO BENINI: ALCUNI SUOI CONTRIBUTI ALLA STATISTICA IN OCCASIONE DEI 150 ANNI DALLA NASCITA

2012 ◽  
Author(s):  
Antonietta Mira
Keyword(s):  
Social Sciences ◽  
Linear Regression ◽  
Multiple Linear Regression ◽  
Statistical Methodology ◽  
Corrado Gini ◽  
Technical Refinement ◽  
First Time

For the first time in Italy, thanks to the contributions of Rodolfo Benini, Statistics became an autonomous discipline, finally released from economical, demographical and social sciences to which was still assimilated. The rigor and the technical refinement of his analysis justify the importance attributed to his statistical contributions, and support the fact that he has been recognised by Corrado Gini as the first round Italian statistician. Starting from the interpretation by Marcello Boldrini of his «tre mirabili opere di sistemazione», I will deepen three of the main themes linked to the statistical methodology addressed by Benini: multiple linear regression, indexes of attraction and repulsion and the distribution of economical variables. I will conclude discussing his relationship with Pareto, whose law Benini first verified on income and later extended to other economical variables.

Risk factors for progression IgA-nephropathy in children

2021 ◽  
Vol 25 (4) ◽  
pp. 48-56
Author(s):  
M. V. Proskura ◽  
E. K. Petrosyan ◽  
P. E. Povilaitite ◽  
B. L. Kushnir
Keyword(s):  
Risk Factors ◽  
Blood Pressure ◽  
Linear Regression ◽  
Multiple Linear Regression ◽  
Iga Nephropathy ◽  
Predictive Value ◽  
Age Of Onset ◽  
Morphological Data ◽  
First Time

BACKGROUND. The course and outcomes of primary IgA nephropathy in children are variable. Early therapy for high-risk individuals can help to delay the development of end-stage renal disease.THE AIM: to analysis of risk factors for progression and outcomes in children with IgA nephropathy, taking into account clinical and morphological data at the onset and during follow-up.PATIENTS AND METHODS. A retrospective study of 75 children was carried out; the median follow-up was 28 months. The median age of onset was 9.1 years. Patients were divided into 2 groups: 1st – patients with idiopathic IgA nephropathy (n= 53), 2nd – patients with Shenlein-Henoch purpura (n = 22). The diagnosis of primary IgA nephropathy was morphologically confirmed in all patients. Nephrobiopsy data were classified according to the Oxford scale (MEST-C score). The age of onset and first-time admission, the level of proteinuria and glomerular filtration rate (GFR) at the onset, at 12 months, at the end of follow-up, mean arterial blood pressure, MEST-C score, medication before nephrobiopsy were investigated. Progression was determined as a decrease in GFR less than 60 ml/min/1.73 m2. Outcomes were assessed by absence/presence of remission. We provided a search for factors influencing GFR at the end of the follow-up. Data analysis was performed using Student's t-test, Mann-Whitney, χ2, Fisher, linear regression model, binary logistic regression.RESULTS. Unlike adults, the predictive value of the MEST-C score in children has not been proven and is not associated with a decrease in GFR <60 ml/min/1.73 m2. GFR at the end of follow-up was lower in the idiopathic IgA nephropathy group than in group 2. The use of multiple linear regression predicts GFR on average after 28 months of observation.RESULTS. Unlike adults, the predictive value of the MEST-C scale in children has not been proven and is not associated with a decrease in GFR <60 ml/min/1.73 m2. GFR at the end of follow-up was lower in the idiopathic IgA nephropathy group. The use of multiple linear regression predicts GFR on average after 28 months of observation.CONCLUSIONS. The influence of morphological factors on the outcome and course of IgA nephropathy has not been proven. The level of GFR at the onset, mean blood pressure, and the age of the first-time admission turned out to be independent variables, which made it possible to identify children with an expected decrease in GFR less than 90 ml/min /1.73 m2 to the group of specific outpatient follow-up.

scholarly journals Quantitative Analysis of the QMS for Pharmaceutical Manufacturing

2021 ◽  
Author(s):  
Guoxu Wang ◽  
Weibing Wang ◽  
Qiang Zheng
Keyword(s):  
Quantitative Analysis ◽  
Linear Regression ◽  
Performance Indicators ◽  
Completion Rate ◽  
Pharmaceutical Manufacturing ◽  
Statistical Methodology ◽  
Time Rate ◽  
Customer Complaints ◽  
The Right ◽  
First Time

Abstract Purpose To propose a statistical methodology for quantitative analysis of the quality management system (QMS) of pharmaceutical manufacturing. Methods (1) Based on the manufacturing data from two established active pharmaceutical ingredient (API) manufacturers in China from 2010 to 2019, the linear regression with Pearson correlation coefficient is used to find the correlations between the proposed QMS operation indicators and performance indicators. (2) A stepwise multiple linear regression is used to identify the independent operation indicators with the biggest impact on a given performance indicator. (3) The Akaike Information Criterion is used to predict the performance indicators based on the operation indicators. Results (1) Correlation: the right-first-time rate correlates strongly with various changes and deviations; the customer complaints correlate with changes, deviations, and CAPAs; the deficiency rate of foreign inspections correlates with deviations and CAPAs; and the CAPA on-time completion rate correlates with changes, deviations, and the ratio of employees in quality. (2) Impact: the right-first-time rate and the customer complaints are mostly impacted by the total deviations; the deficiency rate of foreign inspections is mostly impacted by deviations in equipment and instrument, and deviations due to human error; the CAPA on-time completion rate is mainly impacted by deviations in facility and utilities. (3) Predictability: the right-first-time rate, the customer complaints, the deficiency rate of foreign inspections, and the CAPA on-time completion rate can all be predicted based on the existing data with statistical significance. Conclusions Deviations emerge as a key leading indicator for the performance of QMS. The proposed statistical methodology provides a basis for the data-driven quality management and regulation, whose visibility and predictability are likely to progress as the data accumulates.

scholarly journals Analysis on the Levels of Hope and Influencing Factors of Infertile Women with First-time and Repeated IVF-ET Cycle

2021 ◽  
Author(s):  
Ying Ni ◽  
Limin Huang ◽  
Chenye Tong ◽  
Wen Qian ◽  
Qiong Fang
Keyword(s):  
Social Support ◽  
Linear Regression ◽  
Multiple Linear Regression ◽  
Influencing Factors ◽  
Marital Adjustment ◽  
Repeated Cycle ◽  
Infertile Women ◽  
Adjustment Test ◽  
First Time ◽  
Ivf Et

Abstract Purpose: To explore the hope level and influencing factors of infertile women with first-time and repeated in vitro fertilization-embryo transfer (IVF-ET).Methods: Patients were divided into First (first-time) and Repeat (≥2 cycles) groups, then questionnaire survey was conducted. The questionnaire included demographic information, Herth hope index (HHI) scale, Locke-Wallace short marital-adjustment test scale and social support rating scale. Multiple linear regression was used to analyze the associated influencing factors with hope level.Results: A total of 298 IVF-ET patients were recruited in the study, including 150 (50.3%) in the first cycle and 148(49.7%) in the repeated cycle. The HHI score of the repeated cycle was significantly lower than that of the first cycle (34.4 ± 3.5 vs. 37.5± 3.7, P<0.001). Multiple linear regression analysis indicated that repeated IVF-ET and age was independently negatively correlated with HHI, with a standardized coefficient β of -0.895 and -0.223, both P＜0.001. While high education level (P=0.002), high monthly income(P=0.020), high degree of short marital-adjustment test(P＜0.001) and social support rating(P＜0.001) were independently positively correlated with HHI.Conclusion: The infertile women with repeated IVF-ET have a low hope level. Maintaining a good marriage adjustment, establishing a good social support and relationship network, may effectively improve their hope level.

scholarly journals TOURIST ATTRACTIONS AND SERVICESCAPE AS EFFORTS TO INCREASE VISITING INTEREST ON HALAL TOURISM IN BIMA CITY

2021 ◽  
Vol 6 (1) ◽  
pp. 20
Author(s):  
Sri Ernawati ◽  
Ismunandar Ismunandar ◽  
Ismunandar Ismunandar
Keyword(s):  
Social Sciences ◽  
Data Analysis ◽  
Linear Regression ◽  
Multiple Linear Regression ◽  
T Test ◽  
Literature Study ◽  
Cultural Wealth ◽  
Tourist Attractions ◽  
Purposive Sampling ◽  
The Social

The natural and cultural wealth is a potential asset for tourism in Indonesia. The combination of tourist attractions and supporting facilities is a special advantage for tourists. The purpose of this study was to determine and partially analyze the influence of tourist attractions as an effort to increase visiting interest and servicescape as an effort to increase visiting interest and simultaneously tourist attractions and servicescapes in increasing tourist interest in visiting the concept of halal tourism in Bima City. The number of samples is 100 respondents with purposive sampling through a questionnaire with a Likert scale. Collecting data using questionnaires, observation, and literature study. Testing the data using SPSS (Statistical Package for the Social Sciences) version 20.0. Data analysis used multiple linear regression t-test, F test is carried out. The results show that tourist attractions have an effect as an effort to increase interest in visiting and servicescape has an effect as an effort to increase interest in visiting and simultaneously tourist attractions and servicescape have an effect together as an effort to increase interest in visiting halal tourism in Bima City

scholarly journals PENGARUH EKUITAS MEREK DAN KEPERCAYAAN KONSUMEN TERHADAP KEPUTUSAN PENGGUNAAN JASA EKSPEDISI (STUDI PADA KONSUMEN JALUR NUGRAHA EKAKURIR)

2019 ◽  
Vol 8 (1) ◽  
Author(s):  
Erghana Kanza Kirana
Keyword(s):  
Linear Regression ◽  
Multiple Linear Regression ◽  
Brand Equity ◽  
Sampling Technique ◽  
Consumer Trust ◽  
A Value ◽  
The Impact ◽  
First Time

This study aims to examine the impact of brand equity and consumer trust on decision to use the expedition service. The population of this study was the entire customers who sent their package in the JNE Malang; Meanwhile, the sample was 120 consumers who accidentally met while sending their package in the JNE office. The sample was selected by using accidental sampling technique. The data were analysed by means of Multiple Linear Regression. The findings indicated that (1) most of the consumers initially used JNE for the first time in 2014; (2) brand equity significantly influences decision to use the expedition service with the t-count value of 2.350 and the significance value of 0.020; (3) consumer trust also significantly influences decision to use the expedition service with the t-count value of 3.478 and the significance value of 0.001; and last, (4) from these two variables, consumer trust dominantly influences the decision to use the expedition service with a value of 0.301. 

Pengaruh Motivasi Kerja Terhadap Kinerja Pegawai Kantor Sekretariat Daerah Kabupaten Gunungkidul

2017 ◽  
Vol 23 (2) ◽  
pp. 121-137
Author(s):  
Ary Sutrischastini ◽  
Agus Riyanto
Keyword(s):  
Linear Regression ◽  
Multiple Linear Regression ◽  
Sampling Method ◽  
Work Motivation ◽  
Probability Sampling ◽  
Random Probability

This paper will discuss the effect of work motivation (incentives, motives and expectations) on the performance of the staff of the Regional Secretariat Gunungkidul. The purpose of this paper is: 1) Determine the effect of incentives on the performance of the staff of the Regional Secretariat Gunungkidul, 2) Determine the effect of motive on the performance of the staff of the Regional Secretariat Gunungkidul, 3) To know the effect of expectations on the performance of the staff of the Regional Secretariat Gunungkidul, 4)To know the effect of incentives, motives and expectations on the performance of the staff of the Regional Secretariat Gunungkidul.Research sites in the Regional Secretariat Gunungkidul and the population is 162entire employee in the Regional Secretariat Gunungkidul. Samples amounted to 116 respondents taken with simple random probability sampling method. Data were analyzed using multiple linear regression. Results obtained: (1) incentives positive and significant effect on the performance of, (2) motif positive and significant effect on the performance of, (3) expectations positive and significant impact on the performance of , and (4) incentives, motives and expectations of positive and significant impact on the performance of the staff of the Regional Secretariat Gunungkidul.

PENGARUH FAKTOR-FAKTOR INTERNAL PERBANKAN TERHADAP NON PERFORMING FINANCING PADA BANK UMUM SYARIAH

2019 ◽  
Vol 6 (2) ◽  
pp. 115-130
Author(s):  
Eka Ambara Harci Putranta ◽  
Lilik Ambarwati
Keyword(s):  
Linear Regression ◽  
Multiple Linear Regression ◽  
Linear Regression Analysis ◽  
Multiple Linear Regression Analysis ◽  
Capital Adequacy ◽  
Annual Reports ◽  
Regression Methods ◽  
Capital Adequacy Ratio ◽  
Negative Effect ◽  
Independent Variable

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.

Faktor-Faktor Yang Mempengaruhi Keputusan Mahasiswa Memilih Program Studi Kebidanan STIKES Muhammadiyah Ciamis Tahun 2016

2018 ◽  
Vol 5 (1) ◽  
pp. 69-82
Author(s):  
Evi Mariana
Keyword(s):  
Data Analysis ◽  
Linear Regression ◽  
Multiple Linear Regression ◽  
Random Sampling ◽  
Sampling Method ◽  
Marketing Mix ◽  
Stratified Random Sampling ◽  
Price Promotion ◽  
F Test ◽  
Physical Evidence

The purpose of this study was to analyze the factors that influence the decisionof the students chose to study in Obstetrics Prodi STIKES Muhammadiyah Ciamis and analyze the factors that most influence the decision of the students chose to study in Obstetrics Prodi STIKES Muhammadiyah Ciamis. Collecting data in this study was conducted using a survey by questionnaire to 114 students by stratified random sampling method. Methods of data analysis using multiple linear regression, F test and test T. The result is a marketing mix that significantly is the product, place, and physical evidence. And that does not affect the marketing mix is price, promotion, place, and processes

ANALISIS PENGARUH INFLASI, KURS DAN IHSG TERHADAP RETURN REKSA DANA SAHAM PT NIKKO SECURITIES INDONESIA PERIODE 2014-2017

2019 ◽  
Vol 2 (2) ◽  
pp. 103
Author(s):  
Muhammad Rois Rois ◽  
Manarotul Fatati Fatati ◽  
Winda Ihda Magfiroh
Keyword(s):  
Regression Analysis ◽  
Exchange Rate ◽  
Linear Regression ◽  
Multiple Linear Regression ◽  
Stock Price ◽  
Price Index ◽  
Linear Regression Analysis ◽  
Multiple Linear Regression Analysis ◽  
Equity Fund ◽  
Stock Price Index

This study aims to determine the effect of Inflation, Exchange Rate and Composite Stock Price Index (IHSG) to Return of PT Nikko Securities Indonesia Stock Fund period 2014-2017. The study used secondary data obtained through documentation in the form of PT Nikko Securities Indonesia Monthly Net Asset (NAB) report. Data analysis is used with quantitative analysis, multiple linear regression analysis using eviews 9. Population and sample in this research are PT Nikko Securities Indonesia. The result of multiple linear regression analysis was the coefficient of determination (R2) showed the result of 0.123819 or 12%. This means that the Inflation, Exchange Rate and Composite Stock Price Index (IHSG) variables can influence the return of PT Nikko Securities Indonesia's equity fund of 12% and 88% is influenced by other variables. Based on the result of the research, the variables of inflation and exchange rate have a negative and significant effect toward the return of PT Nikko Securities Indonesia's equity fund. While the variable of Composite Stock Price Index (IHSG) has a negative but not significant effect toward Return of Equity Fund of PT Nikko Securities Indonesia

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