Evidence published

The authors propose that N-silanimines result from a migration of a silyl group with simultaneous loss of N2 in the excited state of the azidosilane. This is in accordance with evidence published earlier by Kyba and Abramovich318,319 that the photochemical decomposition of alkyl azides does not proceed via a nitrene intermediate (see also Reference 320). 

Throughout this book there has been an emphasis on the acquisition of optimum quality data. As well as presenting this optimum quality data to regulatory agencies, it is imperative to present optimum quality data to readers of the clinical literature. It is of the utmost ethical importance that clinical communications are prepared to the highest degree of science and ethics, since clinicians may base the treatment of individual patients on evidence published in clinical communications in their practice of evidence-based medicine (see Section 13.7). 

In addition to the experimental evidence published, the reaction given in Scheme 12 is supported by the fact that -toluene complexes of Nd could be isolated, characterized and used for the initiation of diene polymerization [424]. 

The latter two mechanians are most relevant to cationic polymerisation and deserve a close inspection through the evidence published in favour of each one in the recent literature. 

Two clinical studies [41,42] have confirmed the importance of the correction of the platelet pool of VWF in the control of bleeding episodes in type 3 von Willebrand patients. The clinical evidence published by Castillo et al [42] suggests that full control of hemorrhagic episodes in type 3 patients can be attained with a 20% correction of plasma VWF levels provided there has been previous correction of the platelet VWF pool (5%) by transfusing normal platelets. 

Positive evidence np, no obvious evidence published in the cited reference. 

On the ground of the experimental evidence published by Pearce, Richards and Scilly in 1970 [71], 1972 [72] and 1974 [73] (see Sect. 3.3), Molle and Bauer rejected the possibility of product formation via the reaction of the ketyl radical with the halide (see however also Garst and Smith in 1976 [74]) ... 

From evidence published so far, it appears that soil conditions and agricultural methods have limited effect on the boron composition of plant foods. This suggests that plants have effective mechanisms for maintaining homeostasis of boron, possibly mediated by specific boron transporters (Takano et al., 2002). The lack of a clear effect of agricultural methods on the plant composition of boron is consistent with the limited impact of agricultural methods on other nutrients (Dangour et al., 2009), and may well reflect the essentiality of boron for the integrity of the cell wall in plants (O Neill et al., 1996). 

On the evidence published to date, it seems that the use of highly reactive gases appears to offer a more efficient way of reducing interfering ion background levels because the optimum reaction gas can be selected to create the most favorable ion-molecule reaction conditions for each analyte. In other words, the choice and flow of the reaction gas can be optimized for each and every application problem. 

The results of the present study, in the light of evidence published earlier, suggest that lead has a definite detrimental effect on the psychometric intelligence of children. This study indicates that lead effects are evident at PbB levels higher than 25 jUg/dl. Children with subthreshold levels may be at low, if any, risk of adverse effects on intelligence. Further research is needed in order to explore this issue thoroughly. 

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