Short offerings

As an ambitious academic, I do have dreams about exam unpreparedness, credential inadequacy, and lost slides, misplaced lecture notes, being late, and the like. I call these incomplete arrangement dreams and shortly offer an explanation of them. 

Critical thinking, in short, offers the way to keep science and technology in harness. 

Intermediaries are usually reluctant to offer securities if they do not have them in inventory. Exceptions are highly liquid issues, where the dealer is confident he can obtain the bonds via the interdealer broker market. Generally, Eurobond dealers are more willing than their US counterparts to make short offerings, that is, to sell bonds they do not have in inventory. This mostly reflects the more competitive nature of the market—there are more dealers with smaller market shares than in the United States. But with the market s increased volatility short offerings are less common, and the US-style order system is becoming more prevalent. 

In tliis section we have not discussed experimental advances tliat are offering extraordinary insights into tlie way tlie denatured molecules reach tlie native state. Two remarkable experimental approaches hold tlie promise tliat in short order we will be able to watch tlie folding process from submicrosecond time scale until tlie native state is reached. A brief summary of tliese follow. 

Many experimental techniques now provide details of dynamical events on short timescales. Time-dependent theory, such as END, offer the capabilities to obtain information about the details of the transition from initial-to-final states in reactive processes. The assumptions of time-dependent perturbation theory coupled with Fermi s Golden Rule, namely, that there are well-defined (unperturbed) initial and final states and that these are occupied for times, which are long compared to the transition time, no longer necessarily apply. Therefore, truly dynamical methods become very appealing and the results from such theoretical methods can be shown as movies or time lapse photography. 

Another variation is the mode-locked dye laser, often referred to as an ultrafast laser. Such lasers offer pulses having durations as short as a few hundred femtoseconds (10 s). These have been used to study the dynamics of chemical reactions with very high temporal resolution (see Kinetic LffiASURELffiNTS). 

The availability of lasers having pulse durations in the picosecond or femtosecond range offers many possibiUties for investigation of chemical kinetics. Spectroscopy can be performed on an extremely short time scale, and transient events can be monitored. For example, the growth and decay of intermediate products in a fast chemical reaction can be followed (see Kinetic measurements). 

The total world marketplace can vary widely from year to year, however, due to the cyclic nature of the textile and coUateral appHcations which can be sizable but short-lived. Perhaps this is the reason that there are no published estimates for the world market for fluorescent color. Also, competition has forced most producers to develop higher strength fluorescent materials that offer greater color yield and a better money value. This reduces unit volume and, in many cases, doUar sales. 

Anionic polymerization offers fast polymerization rates on account of the long life-time of polystyryl carbanions. Early studies have focused on this attribute, most of which were conducted at short reactor residence times (< 1 h), at relatively low temperatures (10—50°C), and in low chain-transfer solvents (typically benzene) to ensure that premature termination did not take place. Also, relatively low degrees of polymerization (DP) were typically studied. Continuous commercial free-radical solution polymerization processes to make PS, on the other hand, operate at relatively high temperatures (>100° C), at long residence times (>1.5 h), utilize a chain-transfer solvent (ethylbenzene), and produce polymer in the range of 1000—1500 DP. 

Car manufacturers and intermediaries offer various forms of rail-car leases, ranging from short-term, full-maintenance rentals to long-term leases requiring outside financing (3). Many chemical shippers have substantial investments or lease commitments in tank cars and similar rail equipment, including cars constmcted of or lined with special materials for particular products. Other cars may be thermally insulated to prevent excessive heat buildup in transit or for protection against fire. 

The use of natural dyes as food colorants evolved over a period spanning thousands of years. During that period, by trial and error, some dyes were found to be safe while others were not. By comparison, the development of synthetic dyes as food colorants has taken place over a comparatively short time. During that period, some synthetic dyes considered safe by existing health standards were used as food colors. Later, with iacreased knowledge, these were found to create health problems and were removed from the marketplace. The manufacture of synthetic dyes for use on foods creates more of a health and environmental problem than natural dyes, but offers greater variety and stabiUty of color (see Dyes, environmental chemistry). 

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