Stringent control

The properties of these brittle ceramics depend critically on the preparative conditions. Intimate mixtures of the oxides, carbonates or nitrates of the relevant metals in the required proportions are heated at temperatures of 900-I000°C. For YBa2Cu307 j , all compositions in the range 0 < jc < 0.5 superconduct and the highest Tc is found where jc 0. For others, the oxygen content must be stringently controlled. In all cases, the most... 

Municipal sewage-treatment effluents discharge to surface waters and is subject to the same EPA control on quality and quantity as independent industrial surface-water discharges. Any tightening of EPA standards may therefore result in more stringent controls on industrial effluents discharged to sewers. All the water companies levy charges on industry for the reception, conveyance and treatment of the industrial effluents. 

Multiple technologies are used to regenerate wastewater. The technologies are selected depending on the initial pollutant type and concentration, and treated water quality to be achieved. Stringent control of water quality and operational reliability are the main requirements which drive the technological choices. 

As mentioned above, significant changes in dmg regulation in Australia, Cypms and the Netherlands, were made as a result of the thalidomide disaster that occurred in Europe in 1961. This is a classic example of a crisis-led change. The disaster increased public concerns about pharmaceutical safety governments responded by imposing more stringent controls on the pharmaceutical sector, and with less resistance from the industry than would normally have been the case. 

All individuals and companies have a duty of care to their neighbours, and to the environment in general. In the United Kingdom this is embodied in the Common Law. In addition to this moral duty, stringent controls over the environment are being introduced in the United Kingdom, the European Union, the United States, and in other industrialised countries and developing countries. 

In the past, small quantities of liquid waste, in drums, has been disposed of by dumping at sea or in land-fill sites. This is not an environmentally acceptable method and is now subject to stringent controls. 

In conclusion, broad-based experimental data from multiple investigators support the motion that AR-IHC, coupled with use of stringent controls, has the potential greatly to improve the reliability of IHC staining. However, more robust control systems are needed, which have general application, and... 

Production of tablets at medium-to-large scale requires more stringent control of powder properties due to the high-speed compression step. Processing of tablets and the physics of tablet compaction have been the subject of extensive investigation and voluminous literature exists on the topic. 

Unfortunately, one consequence of the ever more stringent controls upon the use of preservatives and upon preservative-treated wood will be the rejection of wood as a construction material. 

Separation schemes have been developed for aU the elements in the periodic system, both in ionic and molecular forms. Some of these substances are toxic, putting severe restraints on plant operation and the environment. For example, many solvents are bioactive, and increasingly stringent control is needed to prevent their spread in the biosphere. Though the techniques are advanced, demands for improved safety will persist and require new types of equipment or processes. 

In contrast to the studies above, studies comparing individual CBT to other active treatments (a more stringent control condition than WLC) have been less convincing. Lor instance, two studies have compared individual CBT to an education support (ES) condition. In the ES treatment, educational presentations about anxiety and supportive psychotherapy were used with no specific instructions or encouragement to engage in exposure. In the first study, anxious youth with school... 

It is interesting that over the same period in many other regions of the United States and in Europe and Japan, ozone levels did not appear to change as dramatically (National Research Council, 1991 Lindsay et al., 1989 Rao et al., 1992, 1994, 1995, 1996 Zurbenko et al., 1995 Fiore et al., 1998 Oltmans et al., 1998). The major difference in control strategies in California compared to the U.S. federal approach has been an emphasis on both NO, and VOC control, rather than primarily on VOC as has been the case at the federal level. For example, Table 16.3 shows the more stringent control of both NO, and VOC from motor vehicles in California beginning in the mid-1970s. Since 1980, however, VOC emission standards in California have been comparable to the federal standards while the allowed NO, emissions have been smaller by a factor of two or more. 

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