Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

ASSET study

R. G. Wilcox and co-workers (ASSET Study Group), Eaneetii, 525, (1988). [Pg.315]

Wilcox RG, Von Deer Life G, Olsson CG, Jensen G, Skene AM, Hampton JR, for the Asset Study Group. Trial of tissue plasminogen activator for mortality reduction in acute myocardial infarction. Anglo-Scandinavian Study of Early Thrombolysis (ASSET). Lancet 1988 ii 525-530. [Pg.60]

Although polymers in-service are required to be resistant toward hydrolysis and solar degradation, for polymer deformulation purposes hydrolysis is an asset. Highly crystalline materials such as compounded polyamides are difficult to extract. For such materials hydrolysis or other forms of chemolysis render additives accessible for analysis. Polymers, which may profitably be depolymerised into their monomers by hydrolysis include PET, PBT, PC, PU, PES, POM, PA and others. Hydrolysis occurs when moisture causes chain scissions to occur within the molecule. In polyesters, chain scissions take place at the ester linkages (R-CO-O-R ), which causes a reduction in molecular weight as well as in mechanical properties. Polyesters show their susceptibility to hydrolysis with dramatic shifts in molecular weight distribution. Apart from access to the additives fraction, hydrolysis also facilitates molecular characterisation of the polymer. In this context, it is noticed that condensation polymers (polyesters, -amides, -ethers, -carbonates, -urethanes) have also been studied much... [Pg.152]

According to recent studies, the forests covering about 30% of the earth s surface [1] contain 80% terrestrial biomass and provide habitat for about half of the world s known species of plants and animals [2]. Forests provide a wide range of ecological, economic, and social assets, as well as services such as climate regulation through the storage of carbon in complex physical,... [Pg.55]

Fortunately, it is surprisingly easy to transmute the discipline of chemistry into the discipline of law. Thought processes in these two disciplines are closely analogous, and they tend to cross-support each other. To study chemistry successfully, a person must have the ability to construct a persuasive syllogism. This same ability is, of course, a primary asset to any lawyer. [Pg.9]

Owing in part to the excellent, sophisticated computerized tracking systems extant within CRLs, sponsors can utilize this asset to form the basis of a simple, cosf-effecfive, real-time trial status system. While not as potent as a Clinical Trial Management System (CTMS), this approach supports study metrics that may be adequate for multiple sife fri-als involving nutraceuticals and nafural producfs. [Pg.416]

One of the additional assets of EPR in the study of chromium (bio)chemistry is the fact that, besides the Cr(V) state already discussed, the biologically relevant Cr(III) state57 can also be detected readily with this technique. Even EPR spectra of highly unusual Cr(I) complexes58 have been reported, and high-field EPR allows detection of the Cr(II) state that is EPR-silent at conventional microwave frequencies.59 Furthermore, organic radicals that may be formed during the reduction of Cr(VI) to Cr(III) can be detected with EPR. [Pg.77]

This study demonstrates high efficacy and expediency of the TCNQ derivative-based point-contact multistracture as a prospective asset for development of new sensors. The complex character of the sensors response curve and correlation of some response characteristics with different pathological manifestations in human breath, may be further used as a noninvasive diagnostic method alternative to some invasive approaches currently routinely used in clinic. The need for reliable and feasible gas analysis methods functional in presence of atmospheric air, opens opportunities for application of the proposed sensor technique in other spheres of human activity. High sensitivity of the point-contact multistructure enabling analysis of composite gas mixtures, opens up wide possibilities to apply the demonstrated approach for environment and health protection, such as detection of trace amounts... [Pg.73]

The high sensitivity of HPMS is also a valuable asset, because the exparimental determination o( K2 requires the simultaneous sampling of both a and A) . In most ICR experiments, Kj values vary between 0.1 and 10. The increased sentitivity of the HPMS allows the direct study of systems having K2 values outside this range. [Pg.197]

The fact that the solvent can be both oxidized and reduced is an asset in the above reactions, but it is a handicap when the system is used merely as a solvent. For example, the chlorocuprate solvent must be handled in the absence of air to prevent oxidation. Some solutes cannot be studied. Even so gentle an oxidizing agent as FeCI, oxidizes the solvent ... [Pg.200]

The resolutions have introduced an incentive system for new investments destined to the development of the network and of the liquid natural gas (LNG) terminals. At the end of the first period of regulation, the increase in assets deriving from the new investments carried out during the first period will be considered part of the new RAB. The Authority will have the responsibility to ensure a fair yielding of the invested capital. The tariff system is therefore studied to reward efficiency and supports the development of investments. [Pg.66]

An important asset of iron oxide as an H2S sorbent is its reactivity. The results of a comparative study shown in Figure 3 (1) reveal that iron oxide is by far the most active among the oxides considered. This is an important factor in the choice of Fe203 as a sorbent. [Pg.256]

The nature of the value chain considered can require modifications to the basic technical capacity representation proposed in Chapter 3.3.3. In some cases the different product families belonging to a value chain differ with respect to their processing requirements insofar as some product families require additional process steps performed on equipment dedicated to this purpose. Typically, in such a situation two or more production lines share the equipments required for the additional process step. Therefore, the extension will be referred to as shared assets extension. An example of such a value chain can be found in the case study in Chapter 5.2.1. Two cases might have to be considered ... [Pg.112]

It has to be accepted therefore that the level of risk in early compounds is extreme and this reduces only gradually until studies in quite large populations have been tested. Consequently the evaluation of a compound or other kind of asset must be realistically limited to what it is actually possible to know at the time, and acted upon accordingly. [Pg.85]


See other pages where ASSET study is mentioned: [Pg.59]    [Pg.58]    [Pg.1039]    [Pg.109]    [Pg.591]    [Pg.241]    [Pg.233]    [Pg.21]    [Pg.131]    [Pg.114]    [Pg.19]    [Pg.13]    [Pg.616]    [Pg.246]    [Pg.52]    [Pg.137]    [Pg.461]    [Pg.111]    [Pg.113]    [Pg.90]    [Pg.63]    [Pg.5]    [Pg.314]    [Pg.286]    [Pg.337]    [Pg.477]    [Pg.235]    [Pg.385]    [Pg.940]    [Pg.294]    [Pg.332]    [Pg.22]    [Pg.129]    [Pg.770]   


SEARCH



Assets

© 2024 chempedia.info