Factors Associated with the Reading Achievement of Children from a Migratory Population. I

1944 ◽  
Vol 45 (4) ◽  
pp. 203-212 ◽  
Author(s):  
Helen Huus
Keyword(s):  
Reading Achievement ◽  
Factors Associated ◽  
Migratory Population

Review of Research on Reversal Errors

1980 ◽  
Vol 51 (1) ◽  
pp. 55-79 ◽  
Author(s):  
Nadeen L. Kaufman
Keyword(s):  
Reading Achievement ◽  
Reading Disabilities ◽  
Psychological Factors ◽  
Reading Difficulties ◽  
Factors Associated ◽  
Reversal Errors

This review focuses on the phenomenon of reversals: the tendency for children, especially those with reading difficulties, to make errors of orientation (“b-d”) or sequencing (“was-saw”). After a brief historical (Orton) and theoretical (Gibson) look at the phenomenon, a variety of studies on reversals is reviewed and evaluated. The first group of studies reviewed and discussed involves neurological and psychological factors associated with reversals, e.g., age, training. The second set of investigations summarizes the literature relating reversals to reading disabilities and to future reading achievement.

Stain contamination and embedding in electron microscopy

1986 ◽  
Vol 44 ◽  
pp. 50-53
Author(s):  
Hilton H. Mollenhauer
Keyword(s):  
Electron Microscopy ◽  
Information Retrieval ◽  
Epoxy Resins ◽  
Image Contrast ◽  
Sample Preservation ◽  
Factors Associated ◽  
Amount Of Information ◽  
Electron Microscopical ◽  
Contrast Information

Many factors (e.g., resolution of microscope, type of tissue, and preparation of sample) affect electron microscopical images and alter the amount of information that can be retrieved from a specimen. Of interest in this report are those factors associated with the evaluation of epoxy embedded tissues. In this context, informational retrieval is dependant, in part, on the ability to “see” sample detail (e.g., contrast) and, in part, on tue quality of sample preservation. Two aspects of this problem will be discussed: 1) epoxy resins and their effect on image contrast, information retrieval, and sample preservation; and 2) the interaction between some stains commonly used for enhancing contrast and information retrieval.

Sign in / Sign up

Export Citation Format

Share Document