This paper examines the performance of several precise point positioning (PPP) models, which combine dual-frequency GPS/Galileo observations in the un-differenced and between-satellite single-difference (BSSD) modes. These include the traditional un-differenced model, the decoupled clock model, the semi-decoupled clock model, and the between-satellite single-difference model. We take advantage ...

2-Phenyl-2-(1-piperidinyl)propane (PPP), an analog of phencyclidine, was tested for its ability to inactivate cytochrome P450s (P450s) 2B1 and 2B6. PPP inactivated the 7-(benzyloxy)resorufin O-dealkylation activity of liver microsomes obtained from phenobarbital-induced rats with a K(I) of 11 microM. The 7-ethoxy-4-(trifluoromethyl)coumarin O-deethylation activity of purified rat liver P450 2B1...

Prepubertal periodontitis (PPP) is a rare and rapidly progressive disease of young children that results in destruction of the periodontal support of the primary dentition. The condition may occur as part of a recognised syndrome or may occur as an isolated finding. Both autosomal dominant and recessive forms of Mendelian transmission have been reported for PPP. We report a consanguineous Jorda...

Evaluating the sustainability risk level of public–private partnership (PPP) projects can reduce project risk incidents and achieve the sustainable development of the organization. However, the existing studies about PPP projects risk management mainly focus on exploring the impact of financial and revenue risks but ignore the sustainability risks, causing the concept of “sustainability” to be ...

BACKGROUND Persistent postoperative pain (PPP) is defined as persistent pain after surgery of greater than three months' duration. OBJECTIVES Identify the incidence of PPP in our hospital and its associated factors; evaluate quality of life (QoL) and treatment of patients. PATIENTS AND METHODS We conducted an observational prospective study in adults proposed to various types of surgery usi...

Over the past few decades public-private partnership (PPP) models adopted by governments for infrastructure development throughout the world have evolved continuously. This article develops a dynamic framework which argues that PPP models evolve when some of the critical success factors (CSFs) for PPP are changed/improved over time based on project sponsors' risk management. The framework consi...

conclusions according to the results, total direct medical costs for hcv patients in iran exceeded 12 billion ppp$ in (inf-rbv) treatment and 55 billion ppp$ in (peg-rbv). results average direct medical costs for the courses treated with conventional interferon plus ribavirin (inf-rbv) were 4,403 ppp$, and 20,010 ppp$ for peg-interferon plus ribavirin (peg-rbv) courses. there was an increase of...