Big Chemical Encyclopedia

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

Articles Figures Tables About

Prohibition failure

The DAS uses sensors that are separate from those being used by the PMS and the PLS. This prohibits failures from propagating to the other plant systems through the use of shared sensors. [Pg.270]

For the sake of completeness, it is also useful to define at this stage the category of errors known as violations. Violations occur when a worker carries out actions that are either prohibited or are different from those which are prescribed by the organization and carry some associated risks. Since violations are deliberate acts, they are not, strictly speaking, errors. However, the violations category is useful when classifying human caused failures. [Pg.41]

Market failure arguments exist for government aid to some forms of research. Since the results of research are so broadly disseminated, it may be prohibitively expensive for private investors to charge the users of their discoveries. Thus the inventors are undercompensated, and underexpenditure arises unless the government provides aid. In addition, some theorists contend (and others deny) that governments are more farsighted than private firms. [Pg.1105]

Hydraulic (Liquid Seal) Flame Arresters Hydraulic (liquid seal) flame arresters are most commonly used in large-pipe-diameter systems where fixed-element flame arresters are either cost-prohibitive or otherwise impractical (e.g., very corrosive gas or where the gas contains solid particles that would quickly plug a conventional arrester element). These arresters contain a liquid, usually water-based, to provide a flame barrier. Figure 23-62 shows one design. Realistic tests are needed to ensure performance, as described in EN 12874 [15]. Note that hydraulic flame arresters may fail at high flow rates, producing a sufficiently high concentration of gas bubbles to allow transmission of flame. This is distinct from the more obvious failure mode caused by failure to maintain adequate liquid level. [Pg.96]

Army. This kinship was an important factor in the failure in 1926 of the United States Senate to ratify the Geneva Protocol prohibiting chemical warfare (7). [Pg.176]

To be clear, the CCLE is not suggesting that cigarettes or alcohol should be prohibited. Alcohol prohibition was a failure in all respects, again confirming that drug prohibition produces a net harm for individuals and society. See, Gusfield, Symboiic Crusade Status Poiitics and the American Temperance Movement 1986, 2nd ed.) University of Illinois Press. Thornton, Mark. (1991). Alcohol Prohibition was a Failure. Cato Policy Analysis, No. 157 http //www.cato.org/pubs/pas/pa-157.htmi... [Pg.45]

The aminoglycosides decrease the fidelity of translation by binding to the 30S subunit of the ribosome. This permits the formation of the peptide initiation complex but prohibits any subsequent addition of amino acids to the peptide. This effect is due to the inhibition of polymerization as well as to the failure of tRNA and mRNA codon recognition. Aminoglycosides are ototoxic (i.e., may produce partial deafness), damaging the auditory nerve. Kanamycin is less toxic. Since aminoglycosides are concentrated in the kidney, they may occasionally cause kidney damage. [Pg.575]

Failure to follow cGMP is the most common form of violating the prohibition against introducing an adulterated drug into interstate commerce. [Pg.61]

All the other cycloadditions, such as the [4+2] cycloadditions of allyl cations and anions, and the [8+2] and [6+4] cycloadditions of longer conjugated systems, have also been found to be suprafacial on both components, wherever it has been possible to test them. Thus the trans phenyl groups on the cyclopentene 2.65 show that the two new bonds were formed suprafacially on the rrans-stilbene. The tricyclic adducts 2.61, 2.77, 2.79, and 2.83, and the tetracyclic adduct 2.82, show that both components in each case have reacted suprafacially, although only suprafacial reactions are possible in cases like these, since the products from antarafacial attack on either component would have been prohibitively strained. Nevertheless, the fact that they have undergone cycloaddition is important, for it is the failure of thermal [2+2], [4+4] and [6+6], and photochemical [4+2], [8+2] and [6+4] pericyclic cycloadditions to take place, even when all-suprafacial options are open to them, that is significant. [Pg.20]

It was not until after World War II that the humane movement in the United States became reenergized. This was due, in part, to the sudden increase in funds available for biomedical research as well as the passage of a number of state pound seizure laws, which required release of unclaimed dogs and cats to medical research institutions to satisfy increased demand. After numerous failures to repeal these laws, humane societies turned their attention toward providing alternative shelters for homeless or lost dogs and cats. It was not until the 1980s that several states, under pressure, including New York and Massachusetts, passed laws that prohibit the release of any cat or dog from any type of shelter except for its adoption or return to its owner. [Pg.320]

The categories surveyed by the OPCW are Article I prohibitions Article I penalties Eixtra-territorial application Article 11(1) penalties Schedule 1 penalties Schedule 2 penalties Schedule 3 penalties Schedule 3 EUC Penalty for failure to declare and Obstacles to Article VII(2). See OPCW National Legislation Report, Annex 3. [Pg.114]

For PDBS (10) and PDFS (ii), such a dramatic thermochromic transition has not been observed in the solid state. The absorption spectrum of solid PDBS broadens as the film is heated, and shifts to the red region by about 10 nm (Figure 23a). The DSC data for PDBS (iO) indicate that the solid-solid phase transition is at +86 °C. The failure to observe a strong thermochromic transition in PDBS or PDFS is probably the result of the predominant non-trans conformations in the ordered phase I structures. These conformations prohibit the runs of trans conformations necessary to provide the conjugation responsible for the long-wavelength absorption observed in PDHS. In contrast, cooling of the PDBS solution results in a... [Pg.369]

Each company should have a policy that strictly prohibits the deliberate falsification, mutilation, obliteration, or destruction of raw data and associated GMP documentation. Companies must insist on strict adherence to such policies and should take aggressive disciplinary action when lapses are detected. Failure to do so may subject the company and its corporate officers to severe regulatory sanctions, including criminal prosecution under the Federal Food, Drug, and Cosmetic Act, or the general criminal laws of the United States (Title 18, U.S. Code). Even inadvertent (non-deliberate) acts that result in loss of data or records should be prevented, and, if they occur, they should be promptly and thoroughly investigated. [Pg.599]

Efforts to deduce transition state structures theoretically have until recently been retarded by the failure of even the more sophisticated molecular orbital treatments to predict accurate activation energies, and the need to avoid geometric and mechanistic assumptions has made the calculation of reaction pathways prohibitively expensive. The introduction of efficient gradient methods for minimizing energy with respect to all geometric parameters, coupled with the advent of faster computers, has now virtually overcome the latter problem, and careful parameterization of semiempirical molecular orbital methods has led to more... [Pg.149]


See other pages where Prohibition failure is mentioned: [Pg.10]    [Pg.212]    [Pg.119]    [Pg.561]    [Pg.298]    [Pg.13]    [Pg.1236]    [Pg.81]    [Pg.11]    [Pg.17]    [Pg.577]    [Pg.1236]    [Pg.58]    [Pg.281]    [Pg.371]    [Pg.551]    [Pg.46]    [Pg.401]    [Pg.21]    [Pg.407]    [Pg.176]    [Pg.16]    [Pg.318]    [Pg.650]    [Pg.185]    [Pg.15]    [Pg.110]    [Pg.20]    [Pg.140]    [Pg.305]    [Pg.336]    [Pg.2838]    [Pg.217]    [Pg.227]    [Pg.262]    [Pg.32]   
See also in sourсe #XX -- [ Pg.59 , Pg.60 , Pg.61 , Pg.62 , Pg.74 ]




SEARCH



Prohibit

Prohibited

Prohibition

Prohibitive

© 2024 chempedia.info