conclusions the current study indicated that h. pylori infection occurs at a higher rate in patients with down syndrome and mental retardation. this may provide more reasons to control the transmission of h. pylori among them. results the differences between the groups were compared by t-test and x2 test. seropositivity for h. pylori was significantly higher in patients with down syndrome and m...

The significant costs insert on mineral processes due to mill liner wear including the labor costs, price of material and shut down periods. Therefore, the study of this phenomenon is economically important to optimize the mill operating conditions and liner profile design to decrease the wear rate. There is no appropriate and applicable research on impact wear evaluation of mill liners. In the...

Models of the reading process generally describe the relations among the components of reading in skilled readers. In these models, the relations between bottom-up word recognition processes (lower order processes) and top-down comprehension processes (higher order processes) are typically described. In bottom-up models of reading, processing starts with the raw input and passes through increas...

Joule-Thomson cooling systems are used in refrigeration processes such as cryogenic gas liquefaction. Although extensive studies have been carried out by researchers, most of them include cryogenic heat exchangers and their associated fields. In the current study, an attempt was made to indicate the effect of using inappropriate operational conditions in a cryogenic Joule-Thomson cooling system...

we report three cases of asymptomatic celiac disease identified in children with down syndrome after being screened at around twenty-four months of age.  these cases raise the question as to what age is screening for celiac disease indicated in a child with down syndrome and no symptoms.

The germ cell nuclear factor (GCNF) is a member of the nuclear receptor super family of transcription factors. GCNF expression during gastrulation and neurulation is critical for normal embryogenesis in mice. GCNF represses expression of the POU domain transcription factor Oct4 during mouse post-implantation development in vivo. Oct4 is thus down-regulated during female gonadal development, whe...

Performance prediction of checkpointing systems in the presence of failures is a well-studied research area. This paper makes three small contributions to this research area. First, we show how to apply the concept of availability from reliability theory as a useful metric for checkpointing systems. Second, we study the average availability of uniprocessor checkpointing systems, using the libck...

Attention shapes our expectations and perceptions: The neural mechanisms of top-down attention during adulthood and development By SNIGDHA BANERJEE Adviser: John J. Foxe, PhD Top-down attention is the focusing of attention at one’s will through knowledge regarding a current task. There is evidence that top-down attention involves the modulation of sensory cortices by higher order regions. Howev...

Situation Model of Anticipated Response consequences in tactical decisions (SMART) describes the interaction of top-down and bottom-up processes in skill acquisition and thus the dynamic interaction of sensory and motor capacities in embodied cognition. The empirically validated, extended, and revised SMART-ER can now predict when specific dynamic interactions of top-down and bottom-up processe...

The block concept is a fundamental modelling construct in the Systems Modeling Language (SysML), a visual modelling language for systems engineering applications. In a top-down systems engineering approach, an abstract block is decomposed into concrete communicating sub-blocks. However, the classifier behaviour of the abstract block must be exhibited by the composition of the concrete sub-block...