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Tytuł:
Comparative study of meteorological and hydrological drought characteristics in the Pekalen River basin, East Java, Indonesia
Autorzy:
Harisuseno, Donny
Powiązania:
https://bibliotekanauki.pl/articles/946923.pdf
Data publikacji:
2020
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
drought index
rainfall anomaly index
standardized precipitation index
standardized streamflow index
Opis:
Drought is known as a normal part of climate and including in a slow-onset natural hazard which may have several impacts on hydrology, agriculture, and socioeconomic. Drought monitoring, including its severity, spatial and duration is required and becomes an essential input for establishing drought risk management and mitigation plan. Many drought indices have been introduced and applied in regions with different climate characteristics in the last decades. This paper aims to compare standardized precipitation index (SPI) and rainfall anomaly index (RAI) along with standardized streamflow index (SSI) in Pekalen River Basin, East Java, Indonesia. The statistical association analyses, included the Pearson correlation (r), Kendal tau (τ), and Spearman rho (rs) were performed to examine the degree of consistency between monthly and annual drought index of SPI and RAI. Additionally, the comparative analysis was performed by overlapping both monthly and annual drought index from the SPI and RAI with the SSI at hydrological years. The study revealed that the characteristic of the annual drought index between the SPI and RAI exhibits pattern similarity which indicated by the high correlation coefficient between them. Further, the comparative analysis on each hydrological year showed that the SPI and RAI were very well correlated and exhibited a similar pattern with the SSI. Overall, the SPI shows better performance than the RAI for estimating drought characteristic either monthly or annual basis. Hence, the SPI is considered as a reliable and effective tool for analyzing drought characteristic in the study area.
Źródło:
Journal of Water and Land Development; 2020, 45; 29-41
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Applications Use Standardized Work Purpose of Increase the Production Capacity – a Case Study
Autorzy:
Rewers, P.
Mandziuk, M
Trojanowska, J.
Powiązania:
https://bibliotekanauki.pl/articles/409423.pdf
Data publikacji:
2015
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
Training Within Industry
standardized work
Opis:
The article presents the results of research carried out in the company of the foundry industry. Actions taken in the company were to analyze the losses occurring at selected positions and the implementation of standardized work procedures to improving the production process. Describes the state of the current position and manner of operations by the employee, taking into account the distances driven during the execution of the various treatments. The article presents the objectives of the program TWI (Training Within Industry), with special emphasis of the program on the improvement of working methods (MP). The proposed solutions are designed to improve working conditions in the enterprise, and shortening the distances that overcomes the operator also contributes to increased safety. The main effect introduced in the enterprise improvement activities is to increase employee productivity by reducing the execution time of repeated treatments with the introduction of standardized work rules.
Źródło:
Research in Logistics & Production; 2015, 5, 2; 191-200
2083-4942
2083-4950
Pojawia się w:
Research in Logistics & Production
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of lung cancer risk in black-coal miners based on mortality and incidence
Autorzy:
Tomášková, Hana
Šplíchalová, Anna
Šlachtová, Hana
Jirák, Zdeněk
Powiązania:
https://bibliotekanauki.pl/articles/2085719.pdf
Data publikacji:
2020-09-24
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
lung cancer
aging
standardized mortality ratio
standardized incidence ratio
misleading results
coal workers’ pneumoconiosis
Opis:
BackgroundCancer risk (especially as regards lung cancer) in black-coal miners is mainly analyzed on the basis of mortality. The risk calculated based on mortality may differ from the values based on incidence. The aim of the study was to compare cancer risk in black-coal miners with and without coal workers’ pneumoconiosis (CWP), based on data on mortality and the incidence of lung cancer in the Czech Republic in 1992–2013.Material and MethodsThe cohort without CWP was composed of 6687 miners, and the cohort with CWP of 3476 miners. Information on the incidence of lung cancer was obtained from the Czech National Oncological Register (NOR), and information on mortality from the National Population Register. The risk of lung cancer incidence was compared with the general male population in the Czech Republic using the standardized incidence ratio (SIR), and the risk of lung cancer mortality using the standardized mortality ratio (SMR), with the 95% CI.ResultsIn miners with CWP, a lower SMR value was found, SMR = 1.70 (95% CI: 1.41–2.04), compared with the SIR value, SIR = 2.01 (95% CI: 1.70–2.36). In miners without CWP, this was opposite, the value of SIR = 0.81 (95% CI: 0.69–0.94) was lower than the value of SMR = 0.83 (95% CI: 0.70–0.98). In miners without CWP, 17 cases of lung cancer (out of 176 cases in total) were not registered in NOR. In miners with CWP, the share of not registered cases was significantly lower (p = 0.018), and it was represented by 3% of not registered lung cancer cases, out of 156 cases with the diagnosis of lung cancer.ConclusionsIn spite of the difference between SIR and SMR, the results of both indicators were consistent with the resulting relationship between the lung cancer risk and CWP.
Źródło:
Medycyna Pracy; 2020, 71, 5; 513-518
0465-5893
2353-1339
Pojawia się w:
Medycyna Pracy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spatio-Temporal Differentiation of Cancer Incidence in Slovakia
Autorzy:
Vilinová, Katarína
Repaská, Gabriela
Vojtek, Matej
Dubcová, Alena
Powiązania:
https://bibliotekanauki.pl/articles/623859.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
cancer
standardized incidence
mortality
Slovakia
medical geography
Opis:
Coping with the prevention, diagnosis and therapy of cancers is a challenging medical task with continuing consequences for the development of population health status and economy of health in each country. The occurrence of cancers shows an upward trend in the world. A comprehensive fight against cancers should involve the spatial aspect which is best applied in the field of medical geography. The key indicators for the surveillance of cancers include mortality and incidence, but also prevalence. Incidence plays a more and more important role in the period of an increase in cancers. In the investigation of this issue specific analytical methods were used, such as spatial autocorrelation. Standardized cancer incidence in Slovakia was analyzed in the case of men and women. The years 1997, 2009 and the period 1997–2009 were chosen to compare the incidence. The results of partial analyses show the situation in districts of Slovakia from the perspective of incidence development and its spatial differentiation.
Źródło:
European Spatial Research and Policy; 2017, 24, 2; 167-190
1231-1952
1896-1525
Pojawia się w:
European Spatial Research and Policy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ichnotaxonomy as a science
Autorzy:
Rindsberg, A. K.
Powiązania:
https://bibliotekanauki.pl/articles/191834.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
taxonomy
ichnotaxobases
trace fossils
ichnology
standardized classification
Opis:
If ichnotaxonomy is to be scientific, then its results must be repeatable. While some ichnotaxa are identified consistently, others are not, suggesting that ichnotaxonomy is not a mature science. When researchers disagree on the identification of a specimen, it suggests that closer examination is needed: an intermediate stage in the scientific method. But when ichnologists publish different names for the same trace fossils, multiple trials of classification have yielded different results, suggesting a failure of the hypotheses that led to the names. The burgeoning of invertebrate ichnology from the 1960s onward was made possible by demonstrating its utility to the petroleum industry; in part, this was accomplished by simplifying the ichnotaxonomy of common trace fossils to the point where a specialist was not required to make use of them in sedimentology and stratigraphy. The biological aspect of trace fossils, albeit of great interest, was downplayed in favour of a severely geometric approach. Ironically, this has had the effect of obscuring basic relationships of trace fossils and their palaeoenvironments that could be of great use to sedimentologists. Previous researchers have emphasized the value of a uniform approach in ichnotaxonomy. To accomplish this, ichnologists should take inspiration from the taxonomy of body fossils. Making ichnotaxonomy more replicable will take time and effort among investigators. In the long run, this can be accomplished by a holistic approach that includes close observation of trace fossils, standardized procedures of description and diagnosis, reinvestigation of type material, attention to bioprint (morphological traits that reveal the anatomical and ethological characteristics of the tracemakers; Rindsberg and Kopaska-Merkel, 2005), avoidance of taphonomic and human bias, and above all, cooperation.
Źródło:
Annales Societatis Geologorum Poloniae; 2018, 88, 2; 91-110
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Dilemma of Psychology: Objective without an Object?
Autorzy:
Lind, Georg
Powiązania:
https://bibliotekanauki.pl/articles/896655.pdf
Data publikacji:
2019-07-18
Wydawca:
Akademia Pedagogiki Specjalnej im. Marii Grzegorzewskiej. Wydawnictwo APS
Tematy:
psychological measurement
standardized tests
theory
objectivity
validity
Opis:
Anyone who seeks the service of psychology (which translates to “science of the mind”) faces a persisting dilemma. One has to choose between two psychologies: “Subjective”, also called “qualitative”, psychologists believe that the focus on studying the internal structure of the human mind will provide important insights needed in therapy and education. Yet the human mind, they argue, can be studied only with subjective methods like clinical interview, not with standardized tests. In contrast, “objective” or “quantitative”, psychologists argue that if psychology wants to be recognized as a science, it must enlist only objective methods of measurement. Yet this excludes, they argue, the study of internal psychological factors of the human mind. While the subjective approach is based on psychological assumptions regarding the nature of the target measurement object, the objective approach is based on purely statis-tical theories. Must we really have to abandon psychological objects like intellectual and moral capaci-ties if we want our measurement to be objective? In this paper I show that both approaches are based on questionable theories about the relationship between visible behavior on the one side and psychological objects on the other. I also show that we can measure psychological traits objectively and validly if we use an experimental approach. Experimental Question-naires can be used in all fields of psychology in which testable theories about the nature of its object have been developed. We have successfully used this new approach, for example, for the construction and validation of the Moral Competence Test (MCT).
Źródło:
Psychologia Wychowawcza; 2019, 57(15); 99-110
0033-2860
Pojawia się w:
Psychologia Wychowawcza
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Making Human Traits Visible, Objectively and Validly, through Experimentally Designed Questionnaires
Autorzy:
Lind, Georg
Powiązania:
https://bibliotekanauki.pl/articles/1373887.pdf
Data publikacji:
2021-06-30
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
Psychological measurement
standardized tests
theory
objectivity
validity
Opis:
Researchers who need valid and objective data for evaluating their theories or the efficacy of educational methods and programs have to choose between two equally undesirable alternatives: either they can use “objective” methods which have a questionable validity, or they can turn to “subjective” assessment methods with better validity. In other words, while subjective approaches to the study of human traits may be, or really are, valid, they lack objectivity, that is, they may be biased toward the researcher’s theory. On the other hand, objective approaches to the study of psychological traits often lack psychological underpinning but are solely designed to fit a certain statistical model. Thus, we cannot know what these instruments really measure. Here I present a new approach to the study of human traits, which claims to be objective as well as psychologically valid, namely the concept Experimental Questionnaire (EQ). An EQ lets us make traits visible without relying on dubious statistical assumptions. Thus, it makes it possible for the researcher to test the psychological theory underlying its designs. The EQ methodology is not only an idea, but it has been applied for constructing the Moral Competence Test (MCT) and for testing the assumptions about the nature of moral competence which were used to design it. So far, all the studies have clearly confirmed their validity. This makes the MCT suitable for testing hypotheses regarding the relevance and teachability of moral competence, and, therefore, also for evaluating the efficacy and efficiency of educational methods of fostering this competence. Experimentally designed questionnaires can also be used in other fields of educational and psychological research in which testable theories about the nature of its objects have been developed.
Źródło:
Ethics in Progress; 2021, 12, 1; 15-38
2084-9257
Pojawia się w:
Ethics in Progress
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Weather drought index prediction using the support vector regression in the Ansegmir Watershed, Upper Moulouya, Morocco
Autorzy:
Bekri, My Hachem
El Hmaidi, Abdellah
Ousmana, Habiba
El Faleh, El Mati
Berrada, Mohamed
El Aissaoui, Kamal
Essahlaoui, Ali
El Ouali, Abdelhadi
Powiązania:
https://bibliotekanauki.pl/articles/1841959.pdf
Data publikacji:
2021
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
Ansgemir watershed
drought
forecast
modelling
standardized precipitation index
SPI
standardized precipitation-evapotranspiration index
SPEI
support vectors regression
SVR
Opis:
The purpose of this study is to develop mathematical models based on artificial intelligence: Models based on the support vectors regression (SVR) for drought forecast in the Ansegmir watershed (Upper Moulouya, Morocco). This study focuses on the prediction of the temporal aspect of the two drought indices (standardized precipitation index – SPI and standardized precipitation-evapotranspiration index – SPEI) using six hydro-climatic variables relating to the period 1979–2013. The model SVR3-SPI: RBF, ε = 0.004, C = 20 and γ = 1.7 for the index SPI, and the model SVR3-SPEI: RBF ε = 0.004, C = 40 and γ = 0.167 for the SPEI index are significantly better in comparison to other models SVR1, SVR2 and SVR4. The SVR model for the SPI index gave a correlation coefficient of R = 0.92, MSE = 0.17 and MAE = 0.329 for the learning phase and R = 0.90, MSE = 0.18 and MAE = 0.313 for the testing phase. As for the SPEI index, the overlay is slightly poorer only in the case of the SPI index between the observed values and the predicted ones by the SVR model. It shows a very small gap between the observed and predicted values. The correlation coefficients R = 0.88 for the learning, R = 0.86 for testing remain higher and corresponding to a quadratic error average MSE = 0.21 and MAE = 0.351 for the learning and MSE = 0.21 and MAE = 0.350 for the testing phase. The prediction of drought by SVR model remain useful and would be extremely important for drought risk management.
Źródło:
Journal of Water and Land Development; 2021, 50; 187-194
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the Precision of Standardized Precipitation Index (SPI) Based On Years 1954-1995 in Łódź
Autorzy:
Gąsiorek, E.
Musiał, E.
Powiązania:
https://bibliotekanauki.pl/articles/123221.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
standardized precipitation index
gamma distribution
normal distribution
lognormal distribution
Opis:
This paper evaluates the accuracy of estimates of the Standardized Precipitation Index (SPI) using gamma, normal and log-normal distributions. In order to classify the above methods, the authors performed an analysis of the quality of theoretical distributions to empirical distribution, obtained on the basis of monthly precipitation sums during the vegetation season in a multi-year period 1954–1995 in Łódź.
Źródło:
Journal of Ecological Engineering; 2015, 16, 4; 49-53
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Adaptacja wskaźnika SPI na potrzeby monitorowania suszy w wodach podziemnych
Adaptation of the Standardized Precipitation Index SPI for drought monitoring in groundwater
Autorzy:
Kowalczyk, A.
Powiązania:
https://bibliotekanauki.pl/articles/2075651.pdf
Data publikacji:
2017
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
wskaźnik wód podziemnych
susza
standaryzowany wskaźnik opadu
SPI
standaryzowany wskaźnika wód podziemnych
groundwater levels
drought
Standardized Precipitation Index
Standardized Groundwater Level Index
Opis:
The Standardized Precipitation Index (SPI) proposed by Thomas McKee, Nolan Doesken i John Kleist in 1993 is currently one of the most common meteorological index applied in the assessment of drought intensity. It serves for the quantitative assessment ofprecipitation deficit within an agreed time scale. The advantage of the SPI is that it can be applied at different time scales and different climatic conditions. It provides an early warning information regarding droughts and is helpful in the assessment of its severity. The authors propose that the method can be applied in, apart from precipitation, assessments of river flows, depth of snow cover, water resources in reservoirs, soil wetness and groundwater levels. The article proposes an index formula that allows for the assessment of drought in groundwater. Gamma distribution, which is most commonly used in the SPI formula and does not describe the distribution of groundwater level properly, was replaced with the empirical distribution. In this way a new tool with the advantages inheritedfrom its progenitor was defined to assess the intensity of drought in groundwater. The new index has all needed attributes to be used to interpret the current hydrogeological situation on both regional and local scales. It can compete with indicators currently used for this purpose in Poland and abroad. The "new standardized groundwater level index” was applied to analyse the course of a groundwater drought that occurred in Poland in recent years (2015-2016).
Źródło:
Przegląd Geologiczny; 2017, 65, 11/2; 1301--1305
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
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