We discuss the resummation of next-to-leading logarithms (NLL) in heavy quark production near threshold. Results are presented for top quark production at the Fermilab Tevatron.

In reconstructing the top quark momentum from its decay products, one must account for extra jets that can result from radiation of gluons. In this paper we study soft gluon radiation in top production and decay at the Fermilab Tevatron. We consider the cases where one or both W bosons decays hadronically, i.e., where at least one of the top quarks can be fully reconstructed. We show results fo...

There has recently been surprising progress in understanding the spin and flavor dependence of deep inelastic structure functions in terms of the same physics needed in the simple quark models used for hadronic spectroscopy. However, the corresponding scale is usually very low, casting doubt on the use of leading order QCD evolution. We show that the conclusions are not significantly altered if...

Growth charts are essential for evaluating children's health including their nutrition; however, the evaluation of child growth trajectories and consequently the decision to intervene are highly dependent on the growth charts used. The aim of this discussion paper of the European Society for Paediatric Gastroenterology, Hepatology, and Nutrition Committee on Nutrition is to provide information ...

In a recent paper a model of quark and lepton masses was proposed. Without any family symmetries almost all the qualitative and quantitative features of the quark and lepton masses and KobayashiMaskawa mixing angles are explained, primarily as consequences of various aspects of SO(10) symmetry. Here the model is discussed in much greater detail. The threefold mass hierarchy as well as the relat...

Chronic subdural hematoma (CSDH) is one of the most common clinical entities in daily neurosurgical practice. It has been reported to be 1-5 cases per 10,000 of American people per year. Nurses should develop their own standards of care in reducing postoperative complications.The Aim of the study is 3 folds:1. To assess nurses` knowledge and practice regarding patients who had drainage of CSDH ...

Quantitative real-time PCR (QRT-PCR) has been widely implemented for clinical viral load testing, but a lack of standardization and relatively poor precision have hindered its usefulness. Digital PCR offers highly precise, direct quantification without requiring a calibration curve. Performance characteristics of real-time PCR were compared to those of droplet digital PCR (ddPCR) for cytomegalo...

in order to standardize sustainable status of environmental management in productive and industrial activities and commercial and economical relationship, the iso 14000 standards series guarantee the minimization of the costs, growth accoptancy of society and trade and environmental quality improvement and natural resources. in fact, these standards will help any organization to improve and sol...