Potential utility

The ductile-to-britde transition temperature (DBTT) is dependent on purity, history, grain size, etc. Furthermore, the potential utility of the metal is impaired by the fact that the ductility below this transition is essentially nil. To achieve measurable ductility, impurities should be below O, 2000 ppm N, 100 ppm C, 100 ppm H, 20 ppm Si, 1500 ppm S, 150 ppm. 

Organic molecules thus far identified, such as those fisted above, appear either to have irreversible antifertifity effects, to be inherently toxic, or to affect libido. It has been demonstrated that sperm count could be depressed in men injected with large doses of androgens. However, questions about the potential utility of androgens as male antifertifity agents are stiU debated. 

However, we also need to discuss how the attractive interactions between species can be included in the theory of partly quenched systems. These interactions comprise an intrinsic feature of realistic models for partially quenched fluid systems. In particular, the model for adsorption of methane in xerosilica gel of Kaminsky and Monson [41] is characterized by very strong attraction between matrix obstacles and fluid species. Besides, the fluid particles attract each other via the Lennard-Lones potential. Both types of attraction (the fluid-matrix and fluid-fluid) must be included to gain profound insight into the phase transitions in partly quenched media. The approach of Ford and Glandt to obtain the chemical potential utilizing... 

Jager and coworkers have used the TBAF catalyzed-stereoselective niho-aldol reaction for the synthesis of cyclic amino alcohols such as iminopolyols, imino sugars, and cyclic amino acids. They are important classes of compounds and have the potential utility as anh-diabetic. 

The potential utility of this method in the synthesis of chlorodeoxy sugars cannot be fully appraised at the present time owing to the lack of sufficient examples. 

Polyfarylene vinylene)s form an important class of conducting polymers. Two representative examples of this class of materials will be discussed in some detail here. There are poly(l,4-phenylene vinylcne) (PPV) 1, poly(l,4-thienylene viny-lenc) (PTV) 2 and their derivatives. The polymers are conceptually similar PTV may be considered as a heterocyclic analog of PPV, but has a considerably lowci band gap and exhibits higher conductivities in both its doped and undoped stales. The semiconducting properties of PPV have been shown to be useful in the manufacture of electroluminescent devices, whereas the potential utility of PTV has yet to be fully exploited. This account will provide a review of synthetic approaches to arylene vinylene derivatives and will give details an how the structure of the materials relate to their performance in real devices. 

The role of the platelet integrin GPIIb/IIIa receptor and its potential utility as a radio-diagnostic agent in the rapid detection of thromboembolic events has been demonstrated [6]. This approach may be useful for the noninvasive diagnosis of various thromboembolic disorders. 

Advancing technology as well as this demonstration of potential utility of Mass Scatter able Mines led the Army to revise mine warfare doctrine and establish new requirements for a family of Scatterable Mines that could be rapidly and remotely emplaced by a variety uf delivery systems. This requirement called for both Anti-Tank and Anti-Personnel Mine Systems. To this end, two first generation systems are well ad-vandedin devebpment. These are the XM56, a helicopter delivered Anti-Tank Mine System and die XM692, an artillery delivered Anti-Personnel Mine System. Other second generation systems which add increased versatility and capability are scheduled to follow ... 

This is a very neglected category of cyclocondensation. However, the following examples indicate its potential utility. 

This section reviews recent developments in the chemistry of 4-acetoxy-1,3-diox-anes. Highly selective Lewis acid catalyzed nucleophilic additions are described, including their potential utility in natural product synthesis. 

The potential utility of cyclopentadienylthallium(I) in organic synthesis, and its advantages over the much more commonly employed sodium salt, have been illustrated recently 22). Treatment of (I) (Scheme 2) with chloromethyl methyl ether in dry ether resulted in smooth monoalkylation... 

The synthesis of sulfoximides and sulfimides has attracted considerable attention in recent years due to the potential utility of these compounds as efficient auxiliaries and chiral ligands in asymmetric synthesis (reviews [86-88]). Transition metal-catalyzed nitrene transfer to sulfoxides and sulfides is an efficient and straightforward way to synthesize sulfoximides and sulfimides, respectively. Bach and coworkers reported the first iron-catalyzed imination of sulfur compounds with FeCl2 as catalyst and B0CN3 as nitrene source. Various sulfoxides and sulfides were... 

Many patients are turning to dietary supplements in an effort to take a more active part in the management of their health. Whether or not health care practitioners condone this practice, pharmacists must be familiar with these products. Pharmacists should be aware of the safety and toxicity issues surrounsding these products. They cannot afford to jeopardize patients trust and respect by dismissing the potential utility of dietary supplements. Rather, pharmacists need to encourage patients to be open and honest about their dietary supplement use so the highest degree of health care service may be provided. 

JEGEL, Manitoba Slags, Deposits, Characterization, Modifications, Potential Utilization, report, John Emery Geotechnical Engineering Limited, Toronto, Ontario, 1986. 

Semiconductor electrodes seem to be attractive and promising materials for carbon dioxide reduction to highly reduced products such as methanol and methane, in contrast to many metal electrodes at which formic acid or CO is the major reduction product. This potential utility of semiconductor materials is due to their band structure (especially the conduction band level, where multielectron transfer may be achieved)76 and chemical properties (e.g., C02 is well known to adsorb onto metal oxides and/ or noble metal-doped metal oxides to become more active states77-81). Recently, several reports dealing with C02 reduction at n-type semiconductors in the dark have appeared, as described below. 

Nitroalkenes with potential leaving groups in (3-position such as a dialkylamino, an alkylthio, or a phenylsulfonyl group undergo addition-elimination reactions with nucleophiles. The chemistry of nitroenamines has been extensively investigated, and their potential utility in organic synthesis has been well established.2613 116 Severin and coworkers have developed the addition of elimination reactions of nitroenamines with carbon nucleophiles in 1960-1970, as exemplified in Eq. 4.94.117... 

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