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Tytuł:
Workplace innovation: exploratory and confirmatory factor analysis for construct validation
Autorzy:
Wipulanusat, W.
Panuwatwanich, K.
Stewart, R. A.
Powiązania:
https://bibliotekanauki.pl/articles/407161.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
workplace innovation
exploratory factor analysis
confirmatory factor analysis
Opis:
Workplace innovation enables the development and improvement of products, processes and services leading simultaneously to improvement in organisational performance. This study has the purpose of examining the factor structure of workplace innovation. Survey data, extracted from the 2014 APS employee census, comprising 3,125 engineering professionals in the Commonwealth of Australia’s departments were analysed using exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). EFA returned a two-factor structure explaining 69.1% of the variance of the construct. CFA revealed that a two-factor structure was indicated as a validated model (GFI = 0.98, AGFI = 0.95, RMSEA = 0.08, RMR = 0.02, IFI = 0.98, NFI = 0.98, CFI = 0.98, and TLI = 0.96). Both factors showed good reliability of the scale (Individual creativity: α = 0.83, CR = 0.86, and AVE = 0.62; Team Innovation: α = 0.82, CR = 0.88, and AVE = 0.61). These results confirm that the two factors extracted for characterising workplace innovation included individual creativity and team innovation.
Źródło:
Management and Production Engineering Review; 2017, 8, 2; 57-68
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of factor analysis in company management — selected examples related to competitiveness and market success
Autorzy:
Jurczak, Jolanta
Jurczak, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/2086450.pdf
Data publikacji:
2021
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
factor analysis
confirmatory factor analysis
exploratory factor analysis
management
analiza czynnikowa
potwierdzająca analiza czynnikowa
rozpoznawcza analiza czynnikowa
zarządzanie
Opis:
Factor analysis is a standard statistical technique for reducing data dimensionality, which is widely used in sociology, psychology, and demography. Also, financial and insurance institutions commonly use such a technique for marketing research. In recent years, factor analysis has been used, at the beginning rather diffidently, to analyse selected problems of business management, e.g. to troubleshoot consumer and company communication. There are some literature reports about the successful use of factor analysis in managing a company area. Nevertheless, the literature seems to lack examples with successful use of the method with a clear explanation of its rather difficult application in the field of competitiveness or potential company boost. The modest popularity of such a powerful technique in this particular field seems to be attributed mainly to the complexity of the method and its requirements concerning the data quantity. Besides, the factor analysis technique has great potential and can be used as an efficient tool to reduce the complexity of observed phenomenon or verify the accuracy of theoretical models. Therefore, the purpose of this paper is to present a vast potential of factor analysis (both exploratory and confirmatory) applied to solve various problems in company management, especially related to competitiveness and market success. Two case studies covering the subject of business management are presented to illustrate the benefits of factor analysis application. The exploratory factor analysis is exemplified by the search of factors related to the commercial success of the company, while the confirmatory technique is illustrated by a case study of the intellectual capital of the company and its factors related to competitiveness. The paper also presents the essence of the factor analysis, types of analysis, subsequent procedures, purposes, and its specific features. Finally, the applicability of the factor analysis to solve management issues and possible gain in management are discussed.
Źródło:
Engineering Management in Production and Services; 2021, 13, 3; 25--36
2543-6597
2543-912X
Pojawia się w:
Engineering Management in Production and Services
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Applicability of the Multi- Group Confirmatory Factor Analysis to Construction of Business Sentiment Indicators
Zastosowanie konfirmacyjnej analizy czynnikowej dla wielu grup do tworzenia wskaźników koniunktury
Autorzy:
Białowolski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/906852.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
Confirmatory Factor Analysis
Sentiment Indicators
Opis:
The paper presents arguments that advocate for application of the multi-group confirmatory factor analysis as a tool for constructing sentiment indicators in business surveys. Reliable measurement and comparisons of the sentiment mean between periods require measurement invariance on its three basic levels-configural, metric and scalar invariance. It is hypothesized that only sets of questions that are internally coherent can serve as a group of proxies for business sentiment indicator. An attempt to construct two different sentiment indicators for manufacturing industry is performed. The results show that only for the set of coherent proxies it is possible to estimate model with measurement invariance.
Źródło:
Acta Universitatis Lodziensis. Folia Oeconomica; 2012, 269
0208-6018
2353-7663
Pojawia się w:
Acta Universitatis Lodziensis. Folia Oeconomica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of a Teacher Grit Scale (TGS): Predicting the Performance of Educators in the Philippines
Autorzy:
Baraquia, Lee G.
Powiązania:
https://bibliotekanauki.pl/articles/1963536.pdf
Data publikacji:
2020-06-30
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
factor analysis
performance
teachers’ grit
Opis:
The study aims to develop and validate a Teacher Grit Scale and determine its predictive validity for performance. This quantitative research utilized exploratory, confirmatory, and regression analyses based on data from 1425 teachers of the Department of Education, Philippines. Exploratory factor analysis established the factorial validity of a 2-factor structure as compared to 3-factor and 4-factor models. Confirmatory factor analyses from Region IX and Region X of the Department of Education reveal strong cross-validation between the 2-factor models and the data using goodness-of-fit indices. These outcomes show that the factors describing grit are: (1) Perseverance in Teaching and (2) Passion and Purpose in Teaching. Grit relates significantly to teacher performance. However, only the first dimension of grit - perseverance in teaching, established predictive validity with performance.
Źródło:
The New Educational Review; 2020, 60; 165-177
1732-6729
Pojawia się w:
The New Educational Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preservation of magmatic signals in metavolcanics from Wedel Jarlsberg Land, SW Svalbard
Autorzy:
Gołuchowska, Karolina
Barker, Abigail K.
Majka, Jarosław
Manecki, Maciej
Czerny, Jerzy
Bazarnik, Jakub
Powiązania:
https://bibliotekanauki.pl/articles/2086491.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Mineralogiczne
Tematy:
Neoproterozic
Svalbard
metavolcanics
Factor Analysis
Opis:
The purpose of this study is to determine the role of metamorphism and thereby identify the preserved magmatic signature in metavolcanics from Wedel Jarlsberg Land in southwestern Svalbard. Samples have been collected from late Precambrian metavolcanics occurring within metasedimentary rocks of the Sofiebogen Group, as well as dikes cutting older metasedimentary rocks of the Deilegga Group. The volcanic rocks were metamorphosed under greenschist facies conditions during the Caledonian Orogeny. To investigate the role of metamorphism, we present petrography, major and trace element geochemistry, and use factor analysis as a tool to identify correlations that correspond to primary magmatic signals. The metavolcanics are classified as subalkaline basalt to basaltic andesite and they contain relicts of primary clinopyroxene and plagioclase. The metamorphic minerals are actinolite, secondary plagioclase, chlorite and minerals belonging to the epidote group. Major element variations are highly scattered with no obvious trends observed. The HFSE and REE show strong trends attributed to fractional crystallization. The LILE, Th and La show elevated contents in some samples. Factor analysis shows that the HFSE and REE are well correlated. The LILE form a separate well correlated group, while the major elements are not correlated, except for Na2O, Fe2O3 and CaO. The lack of correlation for major elements, as well as the lack of observed fractional crystallization trends between these elements suggests that they were modified by metamorphism. The strong correlation of HFSE and REE reflects the original geochemical signal generated by magmatic processes. The correlation of the LILE is consistent with their elevated composition implying the influence of crustal contamination processes, and though some variability is likely superimposed due to metamorphism, the primary magmatic record is not completely destroyed. We conclude that the HFSE and REE are not influenced by metamorphic processes and therefore provide robust records of magmatic processes.
Źródło:
Mineralogia; 2012, 43, 3/4; 179--197
1899-8291
1899-8526
Pojawia się w:
Mineralogia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preservation of magmatic signals in metavolcanics from Wedel Jarlsberg Land, SW Svalbard
Autorzy:
Gołuchowska, K.
Barker, A. K.
Majka, J.
Manecki, M.
Czerny, J.
Bazarnik, J.
Powiązania:
https://bibliotekanauki.pl/articles/2086518.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Mineralogiczne
Tematy:
Neoproterozic
Svalbard
metavolcanics
Factor Analysis
Opis:
The purpose of this study is to determine the role of metamorphism and thereby identify the preserved magmatic signature in metavolcanics from Wedel Jarlsberg Land in southwestern Svalbard. Samples have been collected from late Precambrian metavolcanics occurring within metasedimentary rocks of the Sofiebogen Group, as well as dikes cutting older metasedimentary rocks of the Deilegga Group. The volcanic rocks were metamorphosed under greenschist facies conditions during the Caledonian Orogeny. To investigate the role of metamorphism, we present petrography, major and trace element geochemistry, and use factor analysis as a tool to identify correlations that correspond to primary magmatic signals. The metavolcanics are classified as subalkaline basalt to basaltic andesite and they contain relicts of primary clinopyroxene and plagioclase. The metamorphic minerals are actinolite, secondary plagioclase, chlorite and minerals belonging to the epidote group. Major element variations are highly scattered with no obvious trends observed. The HFSE and REE show strong trends attributed to fractional crystallization. The LILE, Th and La show elevated contents in some samples. Factor analysis shows that the HFSE and REE are well correlated. The LILE form a separate well correlated group, while the major elements are not correlated, except for Na2O, Fe2O3 and CaO. The lack of correlation for major elements, as well as the lack of observed fractional crystallization trends between these elements suggests that they were modified by metamorphism. The strong correlation of HFSE and REE reflects the original geochemical signal generated by magmatic processes. The correlation of the LILE is consistent with their elevated composition implying the influence of crustal contamination processes, and though some variability is likely superimposed due to metamorphism, the primary magmatic record is not completely destroyed. We conclude that the HFSE and REE are not influenced by metamorphic processes and therefore provide robust records of magmatic processes.
Źródło:
Mineralogia; 2012, 43, 3/4; 179--197
1899-8291
1899-8526
Pojawia się w:
Mineralogia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geometrical perspective on rotation and data structure diagnosis in factor analysis
Autorzy:
Tarka, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/424951.pdf
Data publikacji:
2013
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
geometry
factor analysis
rotation methods
Opis:
Geometry has always contributed to a great extent and played a significant role in the development of many of the principles of the factor models. While factor-analytic principles and procedures have been generally developed by the heavy emphasis on matrix algebra, there is still a grave importance and need towards a geometrical approach and its application in the factor analysis. In this article the author provides, on selected issues, a description in reference to factor models from a geometric viewpoint with a discussion running through its advantages and disadvantages. Finally, at the end of the paper, conclusions in reference to good conditions of factors rotation are given. This article explains to what extent a geometrical approach brings specific value and offers an extra insight into factor analysis. As proved, geometry still provides an alternative framework which may be helpful for better understanding and data structure diagnosis.
Źródło:
Econometrics. Ekonometria. Advances in Applied Data Analytics; 2013, 1(39); 198-209
1507-3866
Pojawia się w:
Econometrics. Ekonometria. Advances in Applied Data Analytics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Exploratory factor analysis in the measurement of the competencies of older people
Eksploracyjna analiza czynnikowa w ocenie kompetencji osób starszych
Autorzy:
Wiktorowicz, Justyna
Powiązania:
https://bibliotekanauki.pl/articles/425160.pdf
Data publikacji:
2016
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
exploratory factor analysis
competencies
ageing
Opis:
Competencies are a crucial factor of professional position and career development. The aim of this paper is the assessment of the competencies of people in late productive age using exploratory factor analysis. The second point is the critical review of the theory and practice on exploratory factor analysis. The empirical analysis is based on the Study of Human Capital data. The survey results confirm the necessity of the factor analysis in research in the area of human capital in the context of ageing. The constructed synthetic indicators allowed for a synthetic assessment of the competencies of Poles aged 50-59/64. The results of the conducted analysis confirm the large significance of all the 24 analysed competencies. The competencies of Poles aged 50-59/64 were decomposed into three groups: (1) soft competencies and physical fitness (2) computer skills and (3) availability and technical competencies.
Źródło:
Econometrics. Ekonometria. Advances in Applied Data Analytics; 2016, 4 (54); 48-60
1507-3866
Pojawia się w:
Econometrics. Ekonometria. Advances in Applied Data Analytics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of Employees Emigration in Hungary
Autorzy:
Huzdik, Katalin
Schwang, Zoltán
Takács, István
Powiązania:
https://bibliotekanauki.pl/articles/639744.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
labour migration, EU, factor analysis
Opis:
At the beginning of the 21st century the European Union faces the greatest challenge in its history. Several problems were raised due to the joining of new member countries to the EU, one of which – the free movement of people – was the most important. The 15 EU member-states, with fears of the cheap labour of the ten joining countries, in 2003 introduced days of grace for seven years to restrict the free movement of labour. However the majority of basic rights came into being before the joining to EU, the free movement of people and rather the free movement of employees became a question of serious debates. Facts did not prove these fears even in the case of France where the fi gure of a Polish mechanic became a topic of voting campaign in 2005. The expected wave of migrant workers never arrived consequently; countries having opened their labour marked after 1 May 2004 were out of danger. At the same time the areas that lost their inhabitants started to decline in terms of both economy and society. This is one of the main reasons for revitalization, which could support the improvement of socio-economic factors of rural areas, decreasing the unfavourable effects of migration.  The newer reconsideration of the transition period is coming at an early date; we made a quantitative research with face to face method in Hungary in August 2008. In the questionnaire we analyzed the migration potential of the Hungarian people with 1200 members national representative sampling.
Źródło:
Zarządzanie Publiczne; 2010, 1-2(9-10)
2084-3968
Pojawia się w:
Zarządzanie Publiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ukrainian adaptation of Chen and Starosta’s Intercultural Sensitivity Scale
Autorzy:
Wosik-Kawala, Danuta
Sarzyńska-Mazurek, Ewa
Korczyński, Mariusz
Bevz, Halyna
Powiązania:
https://bibliotekanauki.pl/articles/52915098.pdf
Data publikacji:
2024-12-31
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
intercultural sensitivity
Intercultural Sensitivity Scale
research instrument adaptation
confirmatory factor analysis
exploratory factor analysis
Opis:
The situation in Ukraine caused by war since 2014 and the intensification of hostilities from 2022 have led many Ukrainian citizens to emigrate. Living in other countries requires the need to adapt to often different cultural conditions. Intercultural sensitivity is an important dimension of intercultural communication competence that determines if individuals effectively adjust to a new reality. This study aims to adapt the most widely used tool for measuring intercultural sensitivity, the Intercultural Sensitivity Scale (2000) by Chen and Starosta, to Ukrainian conditions. This article comprises a presentation of a Ukrainian version of the questionnaire for measuring cross-cultural sensitivity, along with its psychometric properties. The obtained results showed that Chen and Starosta’s five-factor model of intercultural sensitivity (IS) did not fit the Ukrainian cultural context. A confirmatory factor analysis of the previous adaptations of IS, showed that the best model for the present study was the Serbian model. Therefore, we created a four-factor IS model containing 15 items (α-Cronbach’s 0.841). These factors, along with the items included in the Ukrainian version of the Intercultural Sensitivity Scale, were based on the 24-item Intercultural Sensitivity Scale (ISS) formulated by Chen and Starosta. This study contains a proposal of an alternative model of the Intercultural Sensitivity Scale that is better suited to Ukrainian culture. The questionnaire with a key is attached to the article for other researchers to use in their studies.
Źródło:
Edukacja Międzykulturowa; 2024, 27, 4; 114-126
2299-4106
Pojawia się w:
Edukacja Międzykulturowa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Styles of providing negative information by doctors on the basis of the analysis of the Breaking Bad News Skills questionnaire
Style przekazywania trudnych diagnoz na podstawie analizy Kwestionariusza Przekazywania Złych Wiadomości
Autorzy:
Lickiewicz, Jakub
Szwed-Łopata, Wioletta
Sałapa, Kinga
Makara-Studzińska, Marta
Powiązania:
https://bibliotekanauki.pl/articles/942243.pdf
Data publikacji:
2018
Wydawca:
Medical Communications
Tematy:
breaking bad news
exploratory factor analysis
parallel analysis
Opis:
Aim of the study: Identification of factors which determine effective communication between a doctor and a patient. Development of a tool for the evaluation of doctors’ skills of breaking bad news to patients’ relatives. Material and methods: The study was conducted with the survey method, and covered a group of 94 doctors of medicine from three hospitals in the Małopolska region in Poland. The Breaking Bad News Skills questionnaire, developed by Wioletta Szwed-Łopata and Jakub Lickiewicz, describes a doctor’s behaviour in contact with a patient’s family. Results: Exploratory factor analysis was conducted to establish the factor structure of Breaking Bad News Skills questionnaire. The scree plot was used prior to determining the number of factors. Internal consistency was evaluated with Kaiser–Meyer–Olkin (KMO) measure, which should be above 0.6, and Bartlett’s test of sphericity. The factor analysis identified five factors referring to the most characteristic types of doctors’ behaviour. These are: Communication (COM), Emotional Barriers (EMO), Partnership (PAR), Support (SUP) as well as Empathy and Compassion (EMP). The first of the constructed factors (8 items) focuses on statements concerning a doctor’s communication with a patient (COM), while the second factor (8 items) pertains to statements connected with the emotional context of breaking bad news by the physician (EMO). Next factor (5 items) includes statements about partnership (PAR). The fourth factor (5 items) concerns the ability to build a supportive environment (SUP). The last factor (8 items) comprises statements concerning partnership, refers to building a supportive environment and the doctor’ s empathy and compassion (SUP). Conclusions: Results of the Breaking Bad News Skills tool analyses indicate that it should be recommended for further scientific research and used in many areas of psychological and social practice.
Celem pracy jest identyfikacja czynników determinujących efektywną komunikację pomiędzy lekarzem i pacjentem, a także stworzenie narzędzia oceniającego umiejętności lekarzy w zakresie przekazywania złych wiadomości rodzinie pacjenta. Materiał i metody: W badaniu zastosowano metody kwestionariuszowe w grupie 94 lekarzy z trzech szpitali w Małopolsce. Kwestionariusz Przekazywania Złych Wiadomości (Breaking Bad News Skills, BBNS), autorstwa Wioletty Szwed-Łopaty i Jakuba Lickiewicza, opisuje zachowanie lekarza w kontakcie z rodziną pacjenta. Wyniki: W celu określenia struktury czynników Kwestionariusza Przekazywania Złych Wiadomości zastosowano eksploracyjną analizę czynnikową. Do określenia liczby czynników użyto kryterium wykresu osypiska. Do oceny adekwatności doboru próby do badania wykorzystano miarę Kaisera– Mayera–Olkina (KMO) oraz test sferyczności Bartletta. Analiza czynnikowa wykazała pięć czynników odwołujących się do najbardziej typowych zachowań lekarzy. Są to: Komunikacja (COM), Bariera Emocjonalna (EMO), Partnerstwo (PAR), Wsparcie (SUP) oraz Empatia i Współczucie (EMP). Pierwszy z utworzonych czynników (8 pytań) skupia twierdzenie dotyczące komunikacji lekarza z pacjentem (COM), drugi (8 pytań) koncentruje się bardziej na twierdzeniach związanych z kontekstem emocjonalnym, jaki towarzyszy lekarzowi w czasie przekazywania złych wiadomości (EMO). Kolejny czynnik (5 pytań) obejmuje twierdzenie dotyczące kontekstu o charakterze partnerskim (PAR). Czwarty czynnik (5 pytań) dotyczy budowania środowiska wspierającego (SUP). Ostatni czynnik obejmuje 4 pytania związane z empatią i współczuciem lekarza (EMP). Wnioski: Wyniki analiz statystycznych wskazują, że Kwestionariusz Przekazywania Złych Wiadomości powinien być używany w dalszych badaniach naukowych, jak również może być zastosowany w wielu obszarach praktyki psychologicznej.
Źródło:
Psychiatria i Psychologia Kliniczna; 2018, 18, 3; 248-254
1644-6313
2451-0645
Pojawia się w:
Psychiatria i Psychologia Kliniczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of environmetric methods to investigate control factors on water quality
Autorzy:
Boyacioglu, H.
Powiązania:
https://bibliotekanauki.pl/articles/205171.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
water quality
factor analysis
environmetric methods
discriminant analysis
Opis:
In the study, environmetric methods were successfully performed a) to explore natural and anthropogenic controls on reservoir water quality, b) to investigate spatial and temporal differences in quality, and c) to determine quality variables discriminating three reservoirs in Izmir, Turkey. Results showed that overall water quality was mainly governed by “natural factors” in the whole region. A parameter that was the most important in contributing to water quality variation for one reservoir was not important for another. Between summer and winter periods, difference in arsenic concentrations were statistically significant in the Tahtalı, Ürkmez and iron concentrations were in the Balçova reservoirs. Observation of high/low levels in two seasons was explained by different processes as for instance, dilution from runoff at times of high flow seeped through soil and entered the river along with the rainwater run-off and adsorption. Three variables “boron, arsenic and sulphate” discriminated quality among Balçova & Tahtalı, Balçova & Ürkmez and two variables “zinc and arsenic” among the Tahtalı & Ürkmez reservoirs. The results illustrated the usefulness of multivariate statistical techniques to fingerprint pollution sources and investigate temporal/spatial variations in water quality.
Źródło:
Archives of Environmental Protection; 2017, 43, 3; 17-23
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of the heated water discharge on the water quality in a shallow lowland dam reservoir
Autorzy:
Mazierski, Jerzy
Kostecki, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/1845417.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
water quality
factor analysis
multivariate statistical analysis
Opis:
The purpose of the work was to determine the relationship between the of the water quality parameters in an artificial reservoir used as cooling ponds. Factor analysis were applied to analyze eighteen physico- -chemical parameters such as air and water temperature, dissolved oxygen concentration, visibility of the Secchi disk, concentrations of total nitrogen, ammonium, nitrate, nitrite, total phosphorus, phosphate, concentrations of calcium, magnesium, chlorides, sulfates and total dissolved salts, pH, chemical oxygen demand and electric conductivity from 2002-2019 to investigated cooling water discharge. Exploratory factor analysis allowed identified four factors were obtained from 54.1% (in discharge zone) to 56.7% (in dam zone). In discharge and pelagic zones confirmatory factor analysis showed that four latent variables: salinity, temperature, nitrogen and phosphorus provide good fit, but in the dam zone the better fit was obtained for the latent variables salinity, temperature, nutrient and eutrophic. Correlations between latent variables temperature, nitrogen, phosphorus or nutrient and eutrophic show a significant effect of temperature on the transformation of nitrogen and phosphorus compounds.
Źródło:
Archives of Environmental Protection; 2021, 47, 2; 29-46
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Visualization investigation on the marine data with multivariate statistical analysis methods
Autorzy:
Li, Y.
Lu, Z.
Wang, M.
Powiązania:
https://bibliotekanauki.pl/articles/260477.pdf
Data publikacji:
2017
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
marine data
factor analysis
cluster analysis
discriminate analysis
visualization
Opis:
Marine information is an important way for us to know and study more about the ocean. Marine data makes the basic of marine information. Because of the huge quantity and diversity of marine data, and at the same time marine data is polyatomic variable, we start with statistical analysis methods to search for the regularity of the marine data. On one hand, we get the aggregate variation functions of the marine data by factor analyzing in aspect of the spatiality. Then we visually describe the marine status of the studied sea area with pre variogram function and post variogram function. On the other hand, we used cluster analysis method to get the verifying rule in time and make visible graphs of the marine data. In this way, we can also supply with the suggestions in classifying the sea seawater quality. The data processing result shows that the suggested methods in this article are both operable and effective. At the same time some reasonable suggestions are given in the article.
Źródło:
Polish Maritime Research; 2017, S 2; 89-94
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wykorzystanie analizy czynnikowej do wielowymiarowej oceny możliwości rozwoju prośrodowiskowej orientacji przedsiębiorstw
The use of factor analysis to multi-dimensional assess of ability of development of pro-environmental orientation of enterprises
Autorzy:
Cheba, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/434002.pdf
Data publikacji:
2013
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
factor analysis
eco-management
pro-environmental orientation
Opis:
Environment, environmental protection and sustainability policies play a key role in social development and in the economic competitiveness of industrialized countries. The increase in environmental awareness also causes the ecological reorientation of companies. The purpose of this work is to explore the internal multidimensional factors determining the pro-environmental orientation of companies using the factor analysis for this purpose. The study was conducted on a random sample consisting of 300 small and medium-sized enterprises in the Lubuskie Voivodeship. On the basis of the used factor analysis, it was agreed that further analysis should use the first two factors that explain a total of 70.45% of the variance of all variables.
Źródło:
Śląski Przegląd Statystyczny; 2013, 11(17); 275-288
1644-6739
Pojawia się w:
Śląski Przegląd Statystyczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Technological Factors of Enterprise Innovation in a Strategic Perspective
Autorzy:
Rojek, Danuta
Powiązania:
https://bibliotekanauki.pl/articles/2023970.pdf
Data publikacji:
2021-12
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovativeness
technology
factor analysis
structural equation modeling
Opis:
Enterprise innovation is currently becoming a recognized factor of the competitiveness, survival, and development of companies in the market economy. Managers still need recommendations on ways of stimulating the growth of innovation in their companies. The objective of this paper is to identify the strategic factors of enterprise innovativeness in the area of technology, defined as the most important internal factors positively impacting the innovativeness of enterprises in a strategic perspective. Empirical studies were conducted using the Computer-Assisted Web Interview (CAWI) method on a purposive sample of N = 180 small and medium-sized innovative industrial processing enterprises in Poland. Data analysis was performed using Exploratory Factor Analysis within the Confirmatory Factor Analysis framework (E-CFA) and Structural Equation Modeling (SEM). Empirical research shows that the strategic factor of enterprise innovativeness in the area of technology is technological activity. A technologically active company should (1) possess a modern machinery stock, (2) conduct systematic technological audits, and (3) maintain close technical cooperation with the suppliers of raw materials, consumables, and intermediates. The implementation of the indicated recommendations by managers should lead to increased innovativeness of small and medium-sized industrial companies. The author recommends the use of the presented research procedure and data analysis methods in further studies.
Źródło:
Management and Production Engineering Review; 2021, 14, 4; 87-98
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The sources of nutrients in waters of rivers in the wetland areas of Narew National Park in north-eastern Poland
Autorzy:
Skorbiłowicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/124887.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
rivers
sources of nutrients
factor analysis
Narew
Opis:
The study aimed at the attempt to identify and to evaluate the interaction intensity, and to classify the sources of river waters nutrients in the catchment of upper river Narew within Narew National Park (north-eastern Poland). The studies were carried out on Narew river within borders of Narew National Park, where 5 measurement-control points were localized as well as one near estuaries of its 5 tributaries (Awissa, Czaplinianka, Horodnianka, Turośnianka and Supraśl). Factor analysis (FA) from multi-dimensional group was applied for statistical processing of study results, because it is commonly used to describe and explore a large number of data. concentrations of analyzed chemicals depended on a water sampling point that was under anthropopression and geogenic conditions. Studies and results from analyses (FA and CA) allowed for identifying the main sources of river Narew nutrients within Narew National Park. These are: tributaries of river Narew, point and distributed runoffs, as well as shallow ground waters that transport components having anthropogenic and partially geogenic-lithologic origin. River Turośnianka supplies the largest loads of studied parameters to river Narew within Narew National Park boundaries. River Supraśl is the most contaminated tributary of river Narew.
Źródło:
Journal of Ecological Engineering; 2013, 14, 3; 1-7
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The application of selected methods of multivariate statistical analysis to study objective quality of life in Polish and Belarusian regions
Autorzy:
Lialikava, Valiantsina
Skrodzka, Iwona
Kalinina, Alena
Powiązania:
https://bibliotekanauki.pl/articles/1043915.pdf
Data publikacji:
2020-12-30
Wydawca:
Główny Urząd Statystyczny
Tematy:
objective quality of life
TOPSIS
factor analysis
Opis:
The concept of life quality has been studied by specialists from a variety of scientific fields: economics, social geography, sociology, psychology, medicine, political sciences, and others. This contributes to the complementariness of the notion and broadens its interdisciplinary perspective, but on the other hand, it leads to a lack of unanimity in terms of the definition and measurement of the quality of life. Meanwhile, all developed countries in the world regard enhancing life quality as a priority of state policy. With the further advancement of our civilisation, quality of life will become a major issue in economic development. Therefore, monitoring this aspect of economic life, at both country and regional level, seems to be of particular significance. The paper aims to assess the suitability of selected methods of multivariate statistical analysis for the construction of a synthetic measure of objective quality of life. The study employs two methods of constructing synthetic measures of objective life quality: the linear ordering method - TOPSIS, and factor analysis. The results obtained by means of multivariate statistical analysis methods made it possible to create ratings of Polish and Belarusian regions in terms of objective quality of life and to further divide the regions into typological groups.
Źródło:
Przegląd Statystyczny; 2020, 67, 2; 152-173
0033-2372
Pojawia się w:
Przegląd Statystyczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A dynamic approach to the study of unemployment duration
Autorzy:
Landmesser, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/452778.pdf
Data publikacji:
2010
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki
Tematy:
unemployment duration
hazard models
factor analysis
Opis:
In this research work we investigate which factors influence the probability of leaving the unemployment state among people registered in the District Labor Office in S lupsk. The multiepisode hazard models with time-varying variables are suitable tools for this analysis. We introduced the changing labor market structure into the risk model. The main results achieved show that the job finding process depends on the historical time of the entry into the unemployment state and the actual historical time. Also, the specific individual characteristics of people unemployed, such as gender, age, marital status, place of residence, education level, influence the probability of exiting the unemployment state. There is a greater tendency to leave the unemployment state when the person doesn’t receive the unemployment benefit. The participation in the vocational training doesn’t increase the transition rate into employment.
Źródło:
Metody Ilościowe w Badaniach Ekonomicznych; 2010, 11, 1; 212-222
2082-792X
Pojawia się w:
Metody Ilościowe w Badaniach Ekonomicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Joint Factor Analysis of Channel Mismatch in Whispering Speaker Verification
Autorzy:
Lv, G
Zhao, H.
Powiązania:
https://bibliotekanauki.pl/articles/176713.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
joint factor analysis
whisper
speaker verification
Opis:
A speaker recognition system based on joint factor analysis (JFA) is proposed to improve whisper- ing speakers’ recognition rate under channel mismatch. The system estimated separately the eigenvoice and the eigenchannel before calculating the corresponding speaker and the channel factors. Finally, a channel-free speaker model was built to describe accurately a speaker using model compensation. The test results from the whispered speech databases obtained under eight different channels showed that the correct recognition rate of a recognition system based on JFA was higher than that of the Gaussian Mixture Model–Universal Background Model. In particular, the recognition rate in cellphone channel tests increased significantly.
Źródło:
Archives of Acoustics; 2012, 37, 4; 555-559
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Factor Analysis as a Means of Filtering Rams Indicators for Railway Vehicles
Autorzy:
Sitarz, Marek
Chruzik, Katarzyna
Graboń-Chałupczak, Marzena
Powiązania:
https://bibliotekanauki.pl/articles/503756.pdf
Data publikacji:
2017
Wydawca:
Międzynarodowa Wyższa Szkoła Logistyki i Transportu
Tematy:
Maintenance Management System RAMS
factor analysis
Opis:
European Commission Regulation (EU) No. 445/2011 regarding the system of certification for entities in charge of maintenance (ECM) of freight wagons requires such entities to supervise the condition of wagons, without specifying the methods of supervision to be used. Each ECM should establish a Maintenance Management System (MMS), which will include the obligation to monitor the fleet of freight wagons. Monitoring railway vehicle maintenance operations should include tracking all significant technical and operational indicators. The key question is which indicators are the have the greatest impact on safety. This paper discusses some issues related to the monitoring of maintenance operations for railway vehicles. It also looks at dedicated solutions for entities in charge of the maintenance for freight wagons based on PN-EN 50126:2002 standard and RAMS indicators (Reliability, Availability, Maintainability and Safety). This paper describes factor analysis of the proposed indicators as a means of selecting those that have a decisive impact on the correctness of the process for monitoring vehicles. This paper shows an example of the implementation of the requirements of the European Commission Regulation 445/2011 [3] regarding the monitoring of the state of railway vehicles and the possibility of using the information so gained as part of a process of continuous improvement. Reducing the number of indicators will reduce the amount of data needed to calculate all the RAMS indicators, without compromising the benefits of the rail vehicle monitoring system.
Źródło:
Logistics and Transport; 2017, 36, 4; 105-112
1734-2015
Pojawia się w:
Logistics and Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Functional factor analysis in sesame under water - limiting stress: New concept on an old method
Autorzy:
Mansouri, Sadollah
Najafabadi, Masood Soltani
Esmailov, Maghsadollah
Aghaee, Mostafa
Powiązania:
https://bibliotekanauki.pl/articles/2199618.pdf
Data publikacji:
2014-12-18
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
assimilate partitioning
factor analysis
QTL
sesame
transcription factor
Opis:
Multivariate statistical analysis, through their ability to extract hidden relationship between various traits, has a wide application in breeding programs. Having physiological concept on the multivariate analysis, factor analysis was used to extract differential relationships between different components involving in assimilate partitioning in sesame under regular irrigation regime and limited irrigation. The analysis revealed that under regular irrigation regime, the stored and/or currently produced assimilates are allocated to the filling seeds. However, incidence of water shortage in the beginning of flowering time make shifts in assimilate partitioning from formation of new seeds or capsules to the not-matured pre-formed seeds, which results in seeds with more nutrient storage. This indicates the requirement for change in breeding strategies under sub-optimal condition. The possible common language between factor concept in multivariate analysis, QTLs in genetics, and transcription factors in molecular biology is indicated.
Źródło:
Plant Breeding and Seed Science; 2014, 70; 91-104
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Measurement of Expected and Perceived Service of a Municipal Transport Based on Selected Medium-Sized Cities
Autorzy:
Cheba, Katarzyna
Kiba-Janiak, Maja
Powiązania:
https://bibliotekanauki.pl/articles/503838.pdf
Data publikacji:
2012
Wydawca:
Międzynarodowa Wyższa Szkoła Logistyki i Transportu
Tematy:
quality of transport services
factor analysis
cluster analysis
Opis:
In the literature four basic postulates of transport are usually mentioned: time, convenience, cost and security of travel. The hierarchy of importance of individual postulates of transport depends on subjective evaluations of urban transport users. In the research carried out within the framework of research work financed from funds for science in 2010-2013 titled ‘Reference Model of City logistics and the quality of Life of Inhabitants’, measured the difference between the expected and perceived quality of urban transport services and defined a hierarchy of evaluated quality criteria. The solution to the problem with too many variables is the possibility of using factor analysis. This analysis allows the reduction of many interrelated variables
Źródło:
Logistics and Transport; 2012, 15, 2; 75-83
1734-2015
Pojawia się w:
Logistics and Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Recognition and determination of related traits importance with seed yield in chickpea (Cicer aietinum)
Autorzy:
Ghorbani, Tayebeh
Cheghamirza, Kianoosh
Bardideh, Kosar
Shoar, Parastoo Basiri
Powiązania:
https://bibliotekanauki.pl/articles/2199728.pdf
Data publikacji:
2013-12-19
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
chickpea
factor analysis and cluster analysis
path analysis
yield
yield components
Opis:
To study the relationship between seed yield and its components 5 varieties and 18 different genotypes of Cicer arietinum were evaluated. This study was carried out under dryland farming during 2007 in research farm of Razi university. Path analysis showed that in the first level of yield, the highest direct effect was related to biological yield and the highest indirect effect was related to seed number per plant due to biological yield. In second level of yield due to the seed number per plant double seed pod number had the highest direct effect and the highest indirect effect was related to hundreds seed weight due to double the seed pod number. In second level of yield due to biological yield, the highest direct effect was related to high plant and the highest indirect effect was related to high plant due to second branch number. In the third level of yield due to a hundred seed weight, the highest direct effect was related to pod diameter and the highest indirect effect was related to pod length due to pod diameter. Factor analysis showed that 5 factors explained 81.65 percent of the variance. Cluster analysis based on ward method were arranged genotypes in 3 clusters.
Źródło:
Plant Breeding and Seed Science; 2013, 68; 15-24
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determinants of the development of agriculture and rural areas in koniński and leszczyński sub-regions in the years 2002 and 2010. Comparison attempt
Autorzy:
Marcin, Kościelniak,
Powiązania:
https://bibliotekanauki.pl/articles/898103.pdf
Data publikacji:
2019-02-20
Wydawca:
Kujawsko-Pomorska Szkoła Wyższa w Bydgoszczy
Tematy:
rural development
agricultural development
economic changes
factor analysis.
Opis:
Rural areas and their development constitute an important area of research and policy on the local scale as well as the entire EU Community. Therefore, the work was undertaken to determine the determinants of the development of rural areas and agriculture in the Konin and Leszno subregions. The aim of the work is to comprehensively determine the level of development of agriculture and rural communes in the Konin and Leszno subregions during the period of the Universal Agricultural Censuses (2002, 2010) based on the results of factor analysis and to examine the main reasons for changes occurring in given periods. The research will allow to determine the socio-economic situation and the resulting determinants of the development of municipalities.
Źródło:
Roczniki Ekonomiczne Kujawsko-Pomorskiej Szkoły Wyższej w Bydgoszczy; 2018, -(11); 305-322
1899-9573
Pojawia się w:
Roczniki Ekonomiczne Kujawsko-Pomorskiej Szkoły Wyższej w Bydgoszczy
Dostawca treści:
Biblioteka Nauki
Artykuł
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