Results 31 to 40 of about 6,687,759 (284)
External Validation and Comparison of Current Scoring Systems in Encrusted Ureteral Stent Management: a Multicenter Study [PDF]
International Brazilian Journal of UrologyPurpose: 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
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Analysis Approach: Item Statistics and Factor Analysis
, 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
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Statistical analysis of sparse approximate factor models [PDF]
Electronic 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
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Statistical properties of periodic orbits in 4-disk billiard system: pruning-proof property [PDF]
, 2005 Periodic orbit theory for classical hyperbolic system is very significant matter of how we can interpret spectral statistics in terms of semiclassical theory. Although pruning is significant and generic property for almost all hyperbolic systems, pruning-
Alekseev +67 more
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Estimation of heavy metals toxicity in the groundwater of rural area near Ellenabad, Sirsa (Haryana) [PDF]
E3S 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
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Underlying construct of empathy, optimism, and burnout in medical students. [PDF]
, 2015 OBJECTIVE: This study was designed to explore the underlying construct of measures of empathy, optimism, and burnout in medical students. METHODS: Three instruments for measuring empathy (Jefferson Scale of Empathy, JSE); Optimism (the Life Orientation ...
Cohen, Mitchell +4 more
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Understanding and Improving the Wang-Landau Algorithm [PDF]
, 2005 We present a mathematical analysis of the Wang-Landau algorithm, prove its convergence, identify sources of errors and strategies for optimization. In particular, we found the histogram increases uniformly with small fluctuation after a stage of initial ...
B. J. Schulz +2 more
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Khyber Medical University JournalObjective: 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
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Neural Network Parameterizations of Electromagnetic Nucleon Form Factors [PDF]
, 2010 The electromagnetic nucleon form-factors data are studied with artificial feed forward neural networks. As a result the unbiased model-independent form-factor parametrizations are evaluated together with uncertainties.
A Bodek +78 more
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Patterns of anxiety symptoms in toddlers and preschool-age children: Evidence of early differentiation [PDF]
, 2012 The degree to which young children’s anxiety symptoms differentiate according to diagnostic groupings is under-studied, especially in children below the age of 4 years.
Briggs-Gowan, Margaret J. +3 more
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