We present a new method for automatically grading introductory programming assignments. In order to use this method, instructors provide a reference implementation of the assignment, and an error model consisting of potential corrections to errors that students might make. Using this information, the system automatically derives minimal corrections to student’s incorrect solutions, providing th...

Due to modeling errors in designing ontologies, an ontology may carry incorrect information. Ontology debugging can be helpful in detecting errors in ontologies that are increasing in size and expressiveness day by day. While current ontology debugging methods can detect logical errors (incoherences and inconsistencies), they are incapable of detecting hidden modeling errors in coherent and con...

We describe a design for a sideband-separating balanced mixer using four planar single-ended mixer chips connected to the feed horn and LO source by a network of quadrature waveguide hybrids and an in-phase waveguide power divider. The mixer has separate IF output ports for the downconverted signals from the upper and lower RF sidebands, and requires ~14 dB less LO power than a single-ended mix...

305 The Rockefeller University Press $30.00 J. Cell Biol. Vol. 216 No. 2 305–315 https://doi.org/10.1083/jcb.201610042 Introduction Tissue physical properties depend on the cells that make the tissue and also seem to be affected by tissue use. For example, muscle, cartilage, and bone, when suitably exercised, generate or resist mechanical forces that can be many times the weights of these tissu...

background: the main professional goal of nurses is to provide and improve human health. medication errors are among the most common health threatening mistakes that affect patient care. such mistakes are considered as a global problem which increases mortality rates, length of hospital stay, and related costs. this study was conducted to evaluate the types and causes of nursing medication erro...

road users such as drivers, motorists, motorcycle riders, bike riders and pedestrians play an important role in traffic safety. most accidents can be prevented by accurate and regulated driving based on the traffic laws and regulation. in fact by recognizing the errors made by violated drivers we are able to find the appropriate lawful solution for them and to avoid repeating violations made by...

Background: Work-related musculoskeletal disorders (WMSDs) are among the most common occupational problems facing surgical technologists in the operating room, which could be associated with high costs and a reduction in the healthcare quality. The operating room could be the source of various types of surgical errors caused by numerous invasive procedures. This study aimed to investigate the c...

During the procedure of prism adaptation, subjects execute pointing movements to visual targets under a lateral optical displacement: as consequence of the discrepancy between visual and proprioceptive inputs, their visuo-motor activity is characterized by pointing errors. The perception of such final errors triggers error-correction processes that eventually result into sensori-motor compensat...