Cross-calibration of liquid and solid QCT calibration standards: Corrections to the UCSF normative data

1993 ◽  
Vol 3 (1) ◽  
pp. 36-42 ◽  
Author(s):  
K. G. Faulkner ◽  
C. C. Glüer ◽  
S. Grampp ◽  
H. K. Genant
Author(s):  
V. V. Damiano ◽  
R. P. Daniele ◽  
H. T. Tucker ◽  
J. H. Dauber

An important example of intracellular particles is encountered in silicosis where alveolar macrophages ingest inspired silica particles. The quantitation of the silica uptake by these cells may be a potentially useful method for monitoring silica exposure. Accurate quantitative analysis of ingested silica by phagocytic cells is difficult because the particles are frequently small, irregularly shaped and cannot be visualized within the cells. Semiquantitative methods which make use of particles of known size, shape and composition as calibration standards may be the most direct and simplest approach to undertake. The present paper describes an empirical method in which glass microspheres were used as a model to show how the ratio of the silicon Kα peak X-ray intensity from the microspheres to that of a bulk sample of the same composition correlated to the mass of the microsphere contained within the cell. Irregular shaped silica particles were also analyzed and a calibration curve was generated from these data.


1978 ◽  
Vol 9 (4) ◽  
pp. 220-235
Author(s):  
David L. Ratusnik ◽  
Carol Melnick Ratusnik ◽  
Karen Sattinger

Short-form versions of the Screening Test of Spanish Grammar (Toronto, 1973) and the Northwestern Syntax Screening Test (Lee, 1971) were devised for use with bilingual Latino children while preserving the original normative data. Application of a multiple regression technique to data collected on 60 lower social status Latino children (four years and six months to seven years and one month) from Spanish Harlem and Yonkers, New York, yielded a small but powerful set of predictor items from the Spanish and English tests. Clinicians may make rapid and accurate predictions of STSG or NSST total screening scores from administration of substantially shortened versions of the instruments. Case studies of Latino children from Chicago and Miami serve to cross-validate the procedure outside the New York metropolitan area.


2011 ◽  
Author(s):  
Cade Hulbert ◽  
Kristin Batten ◽  
Jessica Kesler ◽  
Carly Gintz ◽  
Jeffrey R. Stowell ◽  
...  

1990 ◽  
Vol 70 (2) ◽  
pp. 370-370 ◽  
Author(s):  
Robert A. Hicks ◽  
Rashmita Mistry ◽  
Kristi Lucero ◽  
Catherine Marical ◽  
Robert J. Pellegrini

1993 ◽  
Author(s):  
Joseph Knapik ◽  
Louis Banderet ◽  
Michael Bahrke ◽  
John O'Connor ◽  
Bruce Jones

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