Long-term variability of bioassessments has not been well evaluated. We analyzed a 20-year data set (1984-2003) from four sites in two northern California streams to examine the variability of bioassessment indices (two multivariate RIVPACS-type O/E scores and one multimetric index of biotic integrity, IBI), as well as eight metrics. All sites were sampled in spring; one site was also sampled i...

objective(s): the purpose of the present study was the immunohistochemical evaluation of vegf and vii factors in dog’s teeth pulp revascularized with mta and propolis. materials and methods: 144 mature and immature two rooted dog’s premolar canals were selected.  pulp necrosis and infection were established after 2 weeks and the disinfection of the canals was done with copious naocl irrigation ...

One of the biggest challenges in wireless communication systems consists in achieving flexible dual-band receivers with maximum hardware share and minimum power consumption. The key for surpassing this challenge is the feasibility and performance evaluation for the different receiver topologies at system level stage. This task has its degree of complexity, by the fact that the receiver blocks c...

Investigates the factors affecting student evaluation of teaching (SET). A total of 170 teaching evaluations conducted at the Nanyang Business School (Singapore) were analysed by regressing the overall teaching index on the following variables: subject characteristics (stream, year and type), class characteristics (format, size, time and day), evaluation characteristics (response, time and day)...

We summarize our recent new evaluation of the pion-exchange contribution to hadronic lightby-light scattering in the muon g− 2. We first derive a new short-distance constraint on the off-shell pion-photon-photon form factor at the external vertex in aμ which relates the form factor to the quark condensate magnetic susceptibility in QCD. We then evaluate the pion-exchange contribution in the fra...

evaluations of the extent to which resulting models discriminate between adolescents who enter care early and those who begin care later in pregnancy have been lacking. As a result, it is difficult for health care providers to accurately identify pregnant adolescents who are at the greatest risk for receiving inadequate care. The purpose of this study was to examine risk factors (including race...