Present State Examination

Knight A, Hirsch S, Platt SD. Clinical change as a function of brief admission to a hospital in a controlled study using the present state examination. Br J Psychiatry 1980 137 170-180. 

Recognition of presenting signs and/or symptoms that dictate the need for further medical evaluation (e.g., a known history of recurring or chronic medical illness, prominent physical symptoms, evidence of an organic mental disorder on the Mini-Mental State Examination, substance abuse disorder)... 

The present state of our knowledge concerning these questions is discussed in the present chapter, with special attention given to classification of the available data, and to making generalizations whenever possible. The literature was systematically examined up to April, 1983, and some subsequent papers have also been incorporated. 

Unfortunately, most of these experiments do not define the energy distribution between the products. In many cases it was possible to examine only one of the products. The problem has been to devise experiments in which it is possible to observe the spectra of both products simultaneously, preferably with the same technique. The present state of our knowledge is that there is ample evidence for excitation of the new-bond molecule up to levels corresponding to the energy released by reaction, and there are data, fewer in number but no less certain, showing some excitation in the old-bond product. These are considered below. 

Missouri State University (MO) 3 4 5 4 7 9 CHM 160 CHM 160 CHM 170 CHM 160, 170, 175 Credit may be awarded for a score of 3 on these examinations. Students must present their examination booklet to the appropriate department head for review. 

It is the purpose of this chapter to briefly examine the present state of the art of polymer blends from both a technical and commercial standpoint. Because of the large variety of blend systems currently being investigated and used commercially, it will not be possible to present an in-depth discussion of specific results. Instead, the first two sections of this chapter will concentrate on the key concepts and fundamental... 

The principal object of chemical experiments is to decompose natural bodies, so as separately to examine the different substances which enter into their composition. By consulting chemical systems, it will be found that this science of chemical analysis has made rapid progress in our own times— Thus, as chemistry advances towards perfection, by dividing and subdividing, it is impossible to say where it is to end and these things we at present suppose simple may soon be found quite otherwise. All we dare venture to affirm of any substance is that it must be considered as simple in the present state of our knowledge, and so far as chemical analysis has hitherto been able to show. 

Bubble column is a term used to describe a vertical column wherein gas is bubbled through either a moving or stagnant pool of liquid or liquid-solid slurry. The name is rather loosely used because the gas is not retained in the column in the form of bubbles at high gas velocity. The column need not be vertical either it can be horizontal or even coil shaped. This brief overview examines the present state of art of the vertically sparged bubble columns. The discussion is restricted to gas-liquid systems only. 

The purpose of this review is, therefore, to examine in depth the present state of knowledge in the hope that this may act as a starting point for further more fruitful research. 

Radiotracer techniques have proved to be indispensable with respect to the examination of the individual steps of an analytical procedure, in particular with the aim of revealing the sources of systematic errors. Actually, tracer techniques have contributed essentially to the development of the present state of trace element analysis. 

Results from additional picosecond kinetic measurements of the photochemical and electron-transfer reactions in photosynthetic bacteria also gave support to the notion of the existence of an intermediary electron acceptor. This can best be illustrated with the kinetic studies of Kaufmann, Dutton, Netzel, Leigh and Rentzepis on the involvement of BO as a transient intermediary electron acceptor in photosynthetic bacteria. When Q is functional, i.e., Q is present in the oxidized state [see Fig. 1], flash illumination would be expected to produce first the [P BO"]-Q-state followed by the [P BO] Q -state. Examination of this reaction by picosecond spectroscopy revealed both the time it takes for electron donation from P to BO and the lifetime of BO , i.e., the time it takes for BO to transfer an electron to Q. 

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