volume estimation of most agricultural products using mathematical methods is not accurate because of their irregular shape. an alternative method is image processing, which can be used in continuous sorting machines. the objective of this study is to find a practical method for volume estimation of potatoes using image processing. fifty potatoes (marfona variety) were selected as experimental ...

squamous cell carcinoma, a cancer of keratinocytes origin, mostly involves sun-exposed areas of the skin. to study the pathologic and demographic features of this disease, records of 395 patients of squamous cell carcinoma of skin and lip were reviewed. most of the patients (83%) aged 40 years or more at the time of diagnosis. respectively, 74.4% and 75.8% of cases with skin and lower lip carci...

PURPOSE To evaluate the relationship between microvascular density and the expression of vascular endothelial growth factor (VEGF) and KIT as possible markers of angiogenic stimulus in astrocytic tumors and correlate it with histopathological grading. METHODS We enrolled 99 surgical specimens of supratentorial astrocytic tumors for analysis of VEGF and KIT and subsequent correlation with MVD ...

Mechanised grading is nowmature. In this paper, we propose elements for the next step: building a commodity infrastructure for grading. We propose — an architecture for a grading component able to be embedded into various learning environments, — a set of extensible Internet-based protocols to interact with this component, and — a self-contained file format to thoroughly define an exercise in o...

This paper considers whether student motivation might be impacted by the replacement of a straight (A, B, C, D, F) grading system with a plus/minus system (A, A−, B+ ... D−, F). The data that are examined are from several undergraduate economics classes at a mid-sized midwestern university in the United States. The data includes student characteristics, student performance and students’ choices...