Big Chemical Encyclopedia

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

Articles Figures Tables About

Delivery ignoring

The structural aspects of supply, credit, advice and training delivery ignore the reality that pesticides can be used under these conditions without risk. [Pg.18]

Following some modifications to a pump, it was used to transfer liquid. When the movement was complete, the operator pressed the stop button on the control panel and saw that the "pump running" light went out. He also closed a remotely operated valve in the pump delivery line. Several hours later the high-temperature alarm on the pump sounded. Because the operator had stopped the pump and seen the running light go out, he assumed the alarm was faulty and ignored it Soon afterward there was an explosion in the pump. [Pg.28]

In this chapter an overview of both the opportunities and the problems presented by the biological system for the use of polymeric drug delivery systems will be presented. Since the area of biocompatibility of the delivery system is a well-known constraint also imposed by the biological system and is beyond the scope of this presentation, this (important) consideration will be ignored here. In order to examine how a delivery system interacts with the biological system to... [Pg.40]

One element that is often ignored in this evaluation though is the extent of the mechanism. For example, if enzymatic activity is to be used to release drug at the site of action, even if the activity/time/volume is one hundred times higher at the desired site than elsewhere (not unreasonable), but the volume of nonspecific activity is one thousand times as great (also not unreasonable), the system does not stand any chance of achieving site-specific delivery. [Pg.44]

Any person who has or may possibly have information relating to an incident should be considered a potential witness. This concept extends heyond the traditionally identified people who were direct participants or eyewitnesses to the occurrence. Indirect witnesses, such as regularly assigned service personnel who are not operations personnel, often contribute valuable information. Examples of this group include workers from maintenance, contract maintenance, laboratory, janitorial, and shipping. Occasionally regular delivery personnel who routinely visit the process unit are familiar with some aspects of what was normal routine and may have noticed some unusual condition, remark, or actions. These people should not he ignored, because they have the potential to contribute valuable information that can help resolve mysteries that would otherwise remain unresolved. [Pg.128]

A major component in the delivery of heat energy to the product is the temperature of the process air. A lesser contributor, but one which should not be ignored, is the dew point of the air for processing. When warm air of a given moisture content (absolute humidity) interacts with a water-wetted... [Pg.227]

As reviewed in Kortenkamp et al. (2007), an essential requirement for experimental studies intended to address the issue of mixture effects at doses or concentrations below NOAELs is that NOAELs are estimated for each mixture component by using the same assay system (and endpoint) that is chosen for the mixture study, ideally under identical experimental conditions. Ignoring this requirement can lead to the inadvertent administration of some or all mixture components at doses higher than NOAELs, and would undermine the aim of the experiment. On the other hand, delivery of doses or concentrations smaller than the NOAEL, either by design or by accident, might present problems if the experimental system lacks the statistical power to detect effects. For example, it would be futile to attempt an experiment where 2 agents are combined at 1/100 of their individual NOEL. The resulting mixture effect, if it exists, would be too small to be detectable in most cases, and the experiment would be inconclusive. [Pg.110]

For the hydrogen technologies, these measurements are not strictly well-to-wheels. The energy used is from the point of feedstock delivery to the conversion facility and ignores energy used to produce the feedstock or to transport the feedstock from the point of extraction ( well ) to the con-... [Pg.76]

A league table of top project risks is presented in Table 6.1. If these are relevant in a particular case but in practice treated casually or even ignored, then project budgets, schedules, and system functionality will almost certainly be compromised. This in turn is bound to affect the standard of validation. It is therefore painfully clear that project risk management is very important not only in terms of project delivery but also in terms of the operational compliance that the computer system will be capable of achieving once put into use. [Pg.125]

In terms of the amount of literature developed, biochemical separations have been largely ignored by those in the field of LEM-mediated separations. One application that has enjoyed some experimental scrutiny is that of the use of LEMs in drug delivery and overdose prevention systems. They have been used to separate or release several different types of drugs including acetylsalicyclic acid (18), phenobarbital (19), and several barbiturates (20,21). [Pg.70]

The performance of an airlift can be derived from hydrostatic principles in terms of the submergence of the air injector below the liquid level in the feed tank (A,), the delivery height above this level (Ar), and the pressure and density of air at ambient atmospheric pressure (P and p ). The atmospheric pressure is expressed as an equivalent height hd of a liquid of density p. The following equation gives an estimate of the mass of air required per uni) mass of liquid (or slurry) ignoring frictional loases in the system ... [Pg.720]

The so-called Tartan Health Paper of 1998 (the Scottish equivalent of the English White Paper, Modern and Dependable), creates a new tool the Joint Investment Fund (JIF). The JIF invites managers to identify and extract the whole cost of care for a particular disease, from primary, secondary and tertiary care, and to reinvest it, ignoring the system delivery boundaries that bedevil most healthcare planning. [Pg.399]

Most quantum chemical modelling studies deal with active site chemistry. That is, the calculations do not really focus on how substrates and products get to and from the active site. Rather, they concentrate on the sequence of events following the arrival of substrate in the active site pocket and seek to uncover the mechanism of conversion of substrate to one or more intermediates and/or product. The obvious reason for such an approach is the assumption that the vast bulk of the protein molecule can be ignored but raises the thorny issue of whether this is a valid assumption. In practical terms, it is not possible (and arguably not desirable) to treat the entire protein quantum mechanically. Moreover, since one of the main roles of the protein is substrate selection and delivery to the active site, and since the computer modeller has explicit control over this feature, one might conclude that there is no need to consider the bulk of the protein molecule. However, the protein backbone may exert a structural influence on the active site—the entatic state [34]—while the groups around the active site produce an electrostatic field different from the in vacuo state which is the default domain of quantum chemistry. In summary, it is obviously critically important to develop a reasonable chemical model of the active site if any conclusions drawn from the calculations are to be believed. [Pg.42]


See other pages where Delivery ignoring is mentioned: [Pg.26]    [Pg.75]    [Pg.235]    [Pg.103]    [Pg.52]    [Pg.184]    [Pg.154]    [Pg.25]    [Pg.28]    [Pg.30]    [Pg.100]    [Pg.995]    [Pg.42]    [Pg.44]    [Pg.367]    [Pg.1143]    [Pg.309]    [Pg.42]    [Pg.56]    [Pg.452]    [Pg.578]    [Pg.174]    [Pg.453]    [Pg.293]    [Pg.419]    [Pg.150]    [Pg.5]    [Pg.31]    [Pg.234]    [Pg.114]    [Pg.19]    [Pg.114]    [Pg.324]    [Pg.99]    [Pg.634]    [Pg.263]    [Pg.223]   
See also in sourсe #XX -- [ Pg.687 ]




SEARCH



Ignorance

© 2024 chempedia.info