We calculate the values of the second moment M s 2 of the flavorsinglet structure function F s 2 for the pion and the kaon in QCD sum rules, and investigate how the results depend on their flavor structure (quark contents). Our calculations give similar values of M s 2 for these two mesons, because of cancellation among several non-small factors. We emphasize that decay constants, meson masses ...

We are motivated by the following question concerning the direct product of graphs. If A×C ∼= B×C , what can be said about the relationship betweenA and B? If cancellation fails, what properties must A and B share?We define a structural equivalence relation∼ (called similarity) on graphs, weaker than isomorphism, for which A× C ∼= B× C implies A ∼ B. Thus cancellation holds, up to similarity. M...

The present study examined how achievement goals affect retrieval-induced forgetting. Researchers have suggested that mastery-approach goals (i.e., developing one's own competence) promote a relational encoding, whereas performance-approach goals (i.e., demonstrating one's ability in comparison with others) promote item-specific encoding. These different encoding processes may affect the degree...

We report a case of a Nepalese who developed a recrudescence of malignant falciparum malaria whilst taking systemic corticosteroids. The malaria was resistant to chloroquine at the RI level, the first such case reported from BMH Dharan.

Apart from radio- and chemotherapy, monoclonal antibodies (MoAbs) represent a new, more selective tool in the treatment of hematological malignancies. MoAbs bind with the specific antigens of the tumors. This interaction is a basis for targeted therapies which exhibit few side effects and significant antitumor activity. This review provides an overview of the functional characteristics of MoAbs...

Drug therapy is a complex and important process and because of the importance of drug interactions, especially in in-patients, accompanying problems and obstacles would exist as a result of concomitant use of drugs in these patients. For this purpose 3130 prescription order forms from Bou-Ali hospital were collected and all potential drug interactions presentwere extracted and evaluated in term...

psoriasis is a chronic, non-contagious skin condition characterized by inflamed and scaly lesions of skin. whilst the pathogenesis of psoriasis is not known, psychological stress has been implicated as a potential trigger in the onset and exacerbation of the condition. psychiatric and psychological factors play an important role in at least 30% of dermatologic disorder and pathophysiologic link...