Results 21 to 30 of about 3,123,421 (247)

External Validation and Comparison of Current Scoring Systems in Encrusted Ureteral Stent Management: a Multicenter Study [PDF]

open access: yesInternational Brazilian Journal of Urology
Purpose: To compare the external validation of four existing scoring systems for encrusted ureteral stents (EUS) and their relationship with stent indwelling time, stone-free rates, multiple surgery sessions, multimodal procedures, and prolonged ...
Mert Hamza Özbilen   +11 more
doaj   +1 more source

Impact of the heated water discharge on the water quality in a shallow lowland dam reservoir [PDF]

open access: yesArchives of Environmental Protection, 2021
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.
Jerzy Mazierski, Maciej Kostecki
doaj   +1 more source

Analysis Approach: Item Statistics and Factor Analysis

open access: yes, 2020
Using dataset from Dataset of Vietnamese students' learning habits during COVID-19 by Trung et al. (2020), this paper answer two research questions. First, should any items be dropped to improve alpha co-efficient? Second, do the items measure one of the three concepts (Necessity for self-learning during COVID-19, Effectiveness for self-learning ...
Joanne Minh Triet Lieu, Nguyen Yen Chi
openaire   +1 more source

Statistical analysis of sparse approximate factor models [PDF]

open access: yesElectronic Journal of Statistics, 2020
The authors consider a sequence of \(n\) i.i.d.~observations of a \(p\)-dimensional random vector \((X_i)\), having the factor structure \(X_i=\Lambda\,F_i+\epsilon_i\), where \(\Lambda\) is the loading \(p\times m\) matrix, \(F_i\) is the vector of centred factor variables and \(\epsilon_i\) are the errors -- the idiosyncratic variables. The dimension
Poignard, Benjamin, Terada, Yoshikazu
openaire   +3 more sources

Psychometric properties for the General Procrastination Scale (GPS) Brazilian version [PDF]

open access: yesEstudos de Psicologia (Campinas)
Objective Procrastination has been the subject of studies due to its impact on people’s lives, work performance, satisfaction, and mental health. Measuring this construct is necessary to understand daily life’s direct and indirect effects.
Guilherme Chirinéa   +5 more
doaj   +1 more source

Estimation of heavy metals toxicity in the groundwater of rural area near Ellenabad, Sirsa (Haryana) [PDF]

open access: yesE3S Web of Conferences, 2023
The present investigation emphasizes on the evaluation of heavy metal pollution indices to assess the suitability of groundwater for human consumption.
Kumar Parul, Jain Sushma
doaj   +1 more source

Development and validation of the Urdu-language Borderline personality disorder scale for adults: a psychometric analysis

open access: yesKhyber Medical University Journal
Objective: To develop and validate an Indigenous Borderline Personality Disorder Scale (BDPDS) for adults in Urdu, tailored to the cultural and linguistic context of Pakistan. Methods: The cross-sectional analytical study was conducted from February 15
Samia Rashid, Zaqia Bano
doaj   +1 more source

Factor structure and psychometric properties of the Arabic Brief COPE among Arab adolescents in the Klang Valley, Malaysia

open access: yesKhyber Medical University Journal
Objectives: To examine the factor structure and internal reliability concerning the factors of Brief COPE (Coping Orientation to Problems Experienced) for assessing coping skills among Arab adolescents in Malaysia. Methods: A total of 150 eligible Arab
Yosra Sherif   +4 more
doaj   +1 more source

Comparison of Rain Erosivity Models (Factor R) Using Statistical Analysis [PDF]

open access: yesAnuário do Instituto de Geociências, 2018
Comparison of rain erosivity models (Factor R) using statistical analysis. Modeling natural systems contributes to the understanding of the landscape variations, associated to the potential of renewable resources and the natural environments fragilities.
Edwaldo Henrique Bazana Barbosa   +2 more
doaj   +1 more source

Multivariate statistical analysis of yield-determining factors [PDF]

open access: yesSoil Science and Plant Nutrition, 1989
This study is aimed at developing a multivariate statistical method to identify yield-determining factors and to evaluate their relative magnitude. Principal component analysis was used to summarize the rice growing environment in a “hydromorphic” field into a number of factors which may affect the yield performance. Four major factors were recognized;
Takashi Kosaki   +2 more
openaire   +1 more source

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