منابع مشابه
Is Struvite a Prebiotic Mineral?
The prebiotic relevance of mineral struvite, MgNH4PO4·6H2O, was studied experimentally as a phosphorylating reagent and, theoretically, to understand the geochemical requirements for its formation. The effectiveness of phosphorylation by the phosphate mineral, monetite, CaHPO4, was also studied to compare to the efficiency of struvite. The experiments focused on the phosphorylation reactions of...
متن کاملMineral speciation determination and quantitative x-ray analysis of struvite family crystals precipitated in wastewater
Mineral speciation of struvite family crystals precipitated in a synthetic wastewater containing Mg: NH : PO3 (MAP) ions were determined in the study. The pH levels by KOH addition and MAP ratios were set up to be the parameter dependence on struvite family crystals precipitation. The Rietveld analysis of XRPD pattern confirmed a mixed product of struvite, struvite-(K) and newberyite precipitat...
متن کاملA Global Scale Scenario for Prebiotic Chemistry: Silica-Based Self-Assembled Mineral Structures and Formamide
The pathway from simple abiotically made organic compounds to the molecular bricks of life, as we know it, is unknown. The most efficient geological abiotic route to organic compounds results from the aqueous dissolution of olivine, a reaction known as serpentinization (Sleep, N.H., et al. (2004) Proc. Natl. Acad. Sci. USA 101, 12818-12822). In addition to molecular hydrogen and a reducing envi...
متن کاملStruvite Crystalluria: Three Cases
The following cases demonstrate the importance of evaluating the total clinical picture and explore how preparing dry-mount urine sediment cytology can maximize the potential of in-house urinalysis. Dry-mount cytology is a quick and relatively easy technique useful not only for evaluating conditions such as urinary tract infection (UTI) or neoplasia but when seeking a pathologist’s second opini...
متن کاملLower Bone Mineral Density is Associated with Intertrochanteric Hip Fracture
Background: A better understanding of how bone mineral density and vitamin D levels are associated with femoralneck and intertrochanteric hip fractures may help inform healthcare providers. We asked: 1) In patients age ≥ 55 years,is there a difference in quantitative ultrasound of the heel (QUS) t-score between patients with fractures of the femoralneck and those with fractures of the intertroc...
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ژورنال
عنوان ژورنال: Life
سال: 2013
ISSN: 2075-1729
DOI: 10.3390/life3020321