Classroom Grade Composition and Pupil Achievement This paper exploits discontinuous grade mixing rules in Norwegian junior high schools to estimate how classroom grade composition affects pupil achievement. Pupils in mixed grade classrooms are found to outperform pupils in single grade classrooms on high stake central exit tests and teacher set and graded tests. This effect is driven by pupils ...

The natural history of Legg-Calvé-Perthes disease (LCPD) in children older than 8 years is usually poor without treatment. The treatment goal is to prevent deformity and incongruity of the hip by achieving a stable spherical femoral head in a deep, congruent, sharp-edged acetabulum, with a good range of hip movement at skeletal maturity. Lateral shelf acetabuloplasty in LCPD can increase the co...

This paper considers the automatic design of fuzzy rule-based classification systems from labeled data. The classification accuracy and interpretability of generated rules are of major importance in fuzzy classification systems. We propose a weighting function for compatibility grade of patterns that improves the performance of fuzzy classification system without degrading the interpretability ...

To characterize the hydraulic fracture network of a conglomerate reservoir, slant core well was drilled aimed to obtain direct information regarding fractures through at fracturing test site (CHFTS). Core classification fundamental issue project. In this study, three grade classifications for were proposed. Comprehensive carried out using analytic hierarchy process (AHP)–fuzzy comprehensive eva...

The authors have conducted a prospective cohort study of the efficacy of a 7 days administration of Indomethacin (n = 89) versus Meloxicam (n = 92), in the prophylaxis of heterotopic ossification (HO) in primary total hip arthroplasty. To assess the interobserver variability of the Brooker classification, all radiographs were evaluated by three investigators. In the Indomethacin group 25 patien...

Remote sensing systems based on consumer-grade cameras have been increasingly used in scientific research and remote sensing applications because of their low cost and ease of use. However, the performance of consumer-grade cameras for practical applications has not been well documented in related studies. The objective of this research was to apply three commonly-used classification methods (u...

one studies the $hx$-hypergroups, corresponding to the chinese hypergroups associated with the direct products of some ${bf z}/n {bf z},$ calculating their fuzzy grades.

in this study we have described our varicocele cases in terms of associated symptoms/signs. in addition, we have tested the correlation between semen parameters and varicocele grades and compared the relative frequencies of associated symptoms/signs in different varicocele grades. 1 19 referred cases of varicocele were categorized based on clinical criteria into 3 grades by one examiner. the re...

background: articular cartilage injuries are a common clinical problem at the time of acl reconstruction with an incidence rate of 16-46%. good results of acl reconstruction combined with the treatment of chondral lesions have been published in some studies. method: after statistical analysis 30 patients were selected and divided in 2 groups. theffirst group consisted of 15 patients wite isolat...

The objective of the investigation was to compare the degree of interobserver agreement in determining the histological grade of uterine endometrial endometrioid adenocarcinoma using the criteria proposed by the three-grade FIGO classification (1988) and the new, two-grade system proposed by Lax et al. (2000). In the FIGO system, the assessment is focused on the amount of solid, non-squamous gr...