scholarly journals Reference file for reply to offline comment: O4_scaling_factor_10022019_TKK_RMV-1.pdf

2019 ◽  
Author(s):  
Thomas Wagner
Keyword(s):  
Reference File

scholarly journals Dimensional Accuracy of Dental Models for Three-Unit Prostheses Fabricated by Various 3D Printing Technologies

Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1550
Author(s):  
Soo-Yeon Yoo ◽  
Seong-Kyun Kim ◽  
Seong-Joo Heo ◽  
Jai-Young Koak ◽  
Joung-Gyu Kim
Keyword(s):  
Surface Roughness ◽  
Three Dimensional ◽  
Dimensional Accuracy ◽  
3D Analysis ◽  
Digital Light Processing ◽  
Test Models ◽  
Reference File ◽  
Significant Difference ◽  
Jet Printing ◽  
3D Printed

Previous studies on accuracy of three-dimensional (3D) printed model focused on full arch measurements at few points. The aim of this study was to examine the dimensional accuracy of 3D-printed models which were teeth-prepped for three-unit fixed prostheses, especially at margin and proximal contact areas. The prepped dental model was scanned with a desktop scanner. Using this reference file, test models were fabricated by digital light processing (DLP), Multi-Jet printing (MJP), and stereo-lithography apparatus (SLA) techniques. We calculated the accuracy (trueness and precision) of 3D-printed models on 3D planes, and deviations of each measured points at buccolingual and mesiodistal planes. We also analyzed the surface roughness of resin printed models. For overall 3D analysis, MJP showed significantly higher accuracy (trueness) than DLP and SLA techniques; however, there was not any statistically significant difference on precision. For deviations on margins of molar tooth and distance to proximal contact, MJP showed significantly accurate results; however, for a premolar tooth, there was no significant difference between the groups. 3D color maps of printed models showed contraction buccolingually, and surface roughness of the models fabricated by MJP technique was observed as the lowest. The accuracy of the 3D-printed resin models by DLP, MJP, and SLA techniques showed a clinically acceptable range to use as a working model for manufacturing dental prostheses

Teaching Reference File For Family Practice Residencies

1981 ◽  
Vol 146 (5) ◽  
pp. 336-338
Author(s):  
David C. Schutt
Keyword(s):  
Family Practice ◽  
Reference File

A METHOD OF PREPARING AN EDGE-PUNCHED CARD LITERATURE REFERENCE FILE

1965 ◽  
Vol 41 (2) ◽  
pp. 207-214
Author(s):  
G. S. Chester
Keyword(s):  
Information Retrieval ◽  
Low Cost ◽  
Literature Reference ◽  
Reference File

A method was developed using edge-punched Hollerith (IBM) cards to establish and maintain a literature reference file. Low cost, ease of cross-referencing, and speed of information retrieval are offered as justifications for the use of the system. Coding methods and the design of card layout are discussed and a jig to aid in the marking of the cards and master cards to aid the sorting of the card deck are described.

scholarly journals Number of experiments for adaptability and stability analysis in maize by Lin and Binns method

2018 ◽  
Vol 48 (3) ◽  
Author(s):  
Alberto Cargnelutti Filho ◽  
José Paulo Guadagnin
Keyword(s):  
Zea Mays ◽  
Stability Analysis ◽  
Grain Yield ◽  
Zea Mays L ◽  
Spearman Correlation ◽  
Yield Data ◽  
Maize Cultivars ◽  
Reference File ◽  
Data Files ◽  
Degree Of Association

ABSTRACT: The objective of this study was to determine the necessary number of experiments to analyze the adaptability and stability of maize cultivars (Zea mays L.) using the Lin and Binns method. Grain yield data extracted from 63 maize cultivar trials were used. Trials were divided in six groups of experiments, according to the cycle (early and super early) and the agricultural year (2002/2003, 2003/2004, and 2004/2005). In each group, from the set of all experiments (reference file) new data files were formed by combinations in groups of 2, 3, 4, ..., n-1 experiments, with a total of 10,683 files. For each file, the estimation of the adaptability and stability parameter (Pi) of the Lin and Binns method was calculated. To verify the degree of association of the estimates of Pi obtained with the combinations of experiments and with all the experiments (reference), Spearman correlation coefficient (r) was used. Number of experiments giving values of r≥0.80 in 100% of the combinations was considered sufficient. Seven experiments sufficed for the analysis of adaptability and stability of maize cultivars by the method of Lin and Binns.

scholarly journals Evaluation of the Rubella Surveillance System in Quebec

2000 ◽  
Vol 11 (6) ◽  
pp. 313-316 ◽  
Author(s):  
Lina Perron ◽  
Philippe De Wals ◽  
François Milord
Keyword(s):  
Public Health ◽  
Surveillance System ◽  
Diagnostic Category ◽  
Weighted Kappa ◽  
Immunoglobulin M ◽  
Public Health Departments ◽  
Public Health Professionals ◽  
Reference File ◽  
Rubella Vaccination ◽  
Epidemiological Information

OBJECTIVE: To evaluate the validity of information in the rubella surveillance system in Quebec.DATA AND METHODS: Cases of rubella in the provincial registry of notifiable diseases, "Maladies à declaration obligatoire" (MADO), from 1994 to 1996 were matched with laboratory-identified cases and with cases in a reference file created from all case investigation records of regional departments of public health for the same period. Sensitivity and the proportion of cases in agreement were calculated.RESULTS: Compared with laboratories, the sensitivity of the provincial registry was 56%. Compared with the reference file, global sensitivity (confirmed cases plus clinical cases) was 58% and the positive predictive value was 50%. Of the 356 cases reported to regional public health departments, 65% were classified in the same diagnostic category (confirmed case, clinical case, excluded case) by public health professionals and a group of experts (weighted kappa=0.32). Information on rubella vaccination status was missing in 25% of cases in the MADO file for rubella.CONCLUSIONS: Notification of positive results for immunoglobulin M antibodies and viral cultures should be required of all laboratories. Uniform procedures should be adopted and applied for the validation of cases that are reported to regional departments of public health. In the context of the rarefaction of rubella, any immunoglobulin M-positive result should be interpreted using all available epidemiological information.

Sign in / Sign up

Export Citation Format

Share Document