In vitro evaluation of prothrombin complex concentrates in a thrombin generation assay, using DAPA and purified components of the prothrombinase complex, demonstrated significant levels of coagulant-active "phospholipid replacing" activity. Quantification of this activity showed a significant correlation (r = 0.8747, p less than 0.01) with thrombogenicity measured in vivo in a stasis model in r...

BACKGROUND AND OBJECTIVES A high level of coagulant factor VIII is a well known risk factor for venous thromboembolism, but most studies have enrolled patients under 70 years old. This study aimed to test the hypothesis that an association also exists in the elderly. DESIGN AND METHODS This hospital-based case-referent study took place at the Department of Internal Medicine and Chest Diseases...

The need to ameliorate some of the inherent limitations in the use of alum in water purification engendered these studies. Synthetic water of varying turbidities (50, 100, 300 NTU) and varying pHs (2, 3, and 4), but low alkalinity were prepared. The results from the different studies showed that water of lower residual turbidity could be got from the use of 50% of optimum alum dose when combine...

Under the constraints of high temperature and heterogeneity, the common profile control agent can not effectively plug the steam channeling. To address this issue, it is necessary to develop the high temperature resistance steam channeling plugging agent to improve the steam suction profile in the heavy oil reservoir. This paper used Simple Variable Method to optimize the content of the compone...

Issam Najm, Carol Tate, and Douglas Selby he upcoming Disinfectants/Disinfection ByProducts (D/DBP) Rule recognizes that a greater reduction in the total organic carbon (TOC) concentration of a natural water supply may appreciably reduce the concentrations of known and unknown DBPs formed during chlorination. Thus, the D/DBP Rule requires that conventional surface water treatment plants use enh...

In this study arsenate [As(V)] removal from drinking water by coagulation process was investigated. Ferric chloride (FeCl3.6H2O) and ferrous sulfate (FeSO4.7H2O) were used as coagulant. The effects of major operating variables such as coagulant dose (1–30 mg/L) and pH (5.5–9.5) were investigated. Ferric chloride and ferrous sulfate were found as effective and reliable coagulant due to required ...

Ras cheeses were manufactured using aqueous extract of globe artichoke or artichoke flowers (Cynara scolymus) proteinase as coagulant were compared to calf rennet. There were slight differences between chemical composition of cheese made using vegetable coagulants or calf rennet. Cheeses manufactured with artichoke extract as coagulant exhibited higher (p < 0.05) levels of water soluble nitroge...

in recent years, a potential connection between human intake of aluminum and alzheimer’s disease has drawn attention to the aluminum concentration in drinking water. it is therefore of interest to investigate the aluminum concentration m drinking water, produced under different circumstances. a random selection of 152 water samples were taken by the supply source including ground, surface and a...

The aim of the present work was to produce a polyaluminium ferric silicate chloride (PAFSiC) coagulant from acidic and alkaline wastewater of purifying graphite by roasting, and subsequently to evaluate coagulation efficiency of the reagent by treating surface water from the Yellow River as well as municipal wastewater in comparison with the conventional coagulant polyaluminium chloride (PAC). ...