Adjusting platelet count (PC) in platelet-rich plasma (PRP) using platelet-poor plasma (PPP) is recommended for platelet aggregation (PA) studies, but it could also affect PA independently of the decrease in PC. Analysis of aggregation tracings from healthy controls showed that PC correlated with PA in 47 diluted-PRPs, but not in 104 undiluted-PRPs. Dilution of 9 PRPs with PPP progressively dec...

BACKGROUND Preperitoneal pelvic packing/external fixation (PPP/EF) for controlling life-threatening hemorrhage from pelvic fractures is used widely in Europe but has not been adopted in North America. We hypothesized that PPP/EF arrests hemorrhage rapidly, facilitates emergent operative procedures, and ensures efficient use of angioembolization (AE). STUDY DESIGN In 2004 we initiated a PPP/EF...

Most of the publications on isotretinoin, pregnancy and compliance with the pregnancy prevention programme (PPP) originate from North America. Information specific for the European situation is very limited. The aim of this study was to identify publications describing the use of isotretinoin in humans and the compliance with the PPP in Europe, a systematic search in Medline and Embase was cond...

BACKGROUND There is little information on the status of the implementation of the isotretinoin Pregnancy Prevention Programme (PPP) in the EU, and on compliance with this programme by the regulatory agencies. OBJECTIVE The aim of the study was to obtain information on implementation of the harmonized PPP of isotretinoin in the EU member states plus Norway and Iceland. MATERIALS AND METHODS ...

a r t i c l e i n f o JEL classification: C10 C12 C22 C50 Keywords: (Nonlinear) unit root test Heteroskedasticity Wild bootstrapping Purchasing power parity In spite of the extensive research which has already been undertaken, the issue as to whether Purchasing Power Parity (PPP) empirically holds, continues to be strongly debated. Existing studies have been criticized for their reliance on uni...

[1] Precise point positioning (PPP) has become popular for Global Positioning System (GPS) geodetic network analysis because for n stations, PPP has O(n) processing time, yet solutions closely approximate those of O(n) full network analysis. Subsequent carrier phase ambiguity resolution (AR) further improves PPP precision and accuracy; however, full-network bootstrapping AR algorithms are O(n),...

Ristocetin and vancomycin are structurally similar glycopeptide antibiotics. Both vancomycin and ristocetin in high concentrations (3.0 mg/mI) cause the precipitation of fibrinogen, plasminogen, and IgG from platelet-poor plasma (PPP). In contrast to ristocetin, vancomycin (0.5-1.5 mg/mI) does not agglutinate platelets in normal platelet-rich plasma (PRP) or formalintreated platelets in the pre...

This study evaluated the long-term implications of a Public-Private Partnership (PPP) on livelihoods and natural resource (NR) dynamics under a market-oriented approach to conservation. Drawing examples from the Luangwa Valley in eastern Zambia, the study sought to answer questions on two closely interrelated aspects. These included the contribution of PPP to sustainable livelihoods in and arou...

In contrast to the US Global Positioning System (GPS), the Russian Global Navigation Satellite System (GLONASS) and the European Galileo, the developing Chinese BeiDou satellite navigation system (BDS) consists of not only Medium Earth Orbit (MEO), but also Geostationary Orbit (GEO) as well as Inclined Geosynchronous Orbit (IGSO) satellites. In this study, the Precise Point Positioning (PPP) an...