Severe Subject

TEM is conventionally used as a tool to evaluate the size and shape of the cores by direct imaging. However, the core size cannot be determined with atomic resolution from low contrast and 2-D projection of the 3-D core. There are several subjective factors in the estimation of size e.g., how to select the area from which the core size is derived and how to measure this precisely from the vague projections of cores in the TEM micrographs. 

Spurstowe, W. The spiritual chymist or six decades of divine meditations on several subjects. .. London Printed for Philip Chetwind, 1666. 182, 11 Op. 

Alterations in blood heme metabolism have been proposed as a possible indicator of the biological effects of hydrogen sulfide (Jappinen and Tenhunen 1990), but this does not relate to the mechanism of toxicity in humans. The activities of the enzymes of heme synthesis, i.e., delta-aminolevulinic acid synthase (ALA-S) and heme synthase (Haem-S), were examined in 21 cases of acute hydrogen sulfide toxicity in Finnish pulp mill and oil refinery workers. Subjects were exposed to hydrogen sulfide for periods ranging from approximately 1 minute to up to 3.5 hours. Hydrogen sulfide concentrations were considered to be in the range of 20-200 ppm. Several subjects lost consciousness for up to 3 minutes. 

It is usually necessary to draw scenarios and storyboards dealing with several subject areas. 

These findings reflect autonomically controlled measures that are unavailable to consciousness and appear to be the reverse of several subjective reports. In contrast to some, but not all, subjective reports, nicotine appears to produce arousal in women and relaxation in men. 

EXTENSION S AND COMMENT ARY The dosage range has been broadened to include the 20 milligram level, in that several subjects found that even with that small amount there was difficulty in walking and in keeping one s equilibrium. Walking was described as a floating procedure, and one could tilt to one side or the... 

The focus of Art in Chemistry Chemistry in Art is to avoid subject matter isolation and help students grasp interconnections between disciplines. In life experiences, problem solving crosses several subject areas. Students need to stretch their imaginations and find new pathways to solve a multitude of problems they may face in life. 

Several subjects that might be considered under the title of thermochemistry are discussed in previous chapters. Such subjects are the heat capacities of a single-phase system, the dependence of the enthalpy of a single-phase system on temperature and pressure, and the dependence of the enthalpy of a one-component, multiphase system on the temperature, volume, and mole numbers. Here we are concerned with heat capacities of multiphase systems, with changes of enthalpy for the formation of a solution and for a change of concentration of the solution, and with changes of enthalpy of systems in which chemical reactions occur. First the basic concepts of calorimetry are reviewed. 

None of my subjects had ever had a bad trip. During my observations, there were no periods of panic or hallucination in my terms. Several subjects said that when they closed their eyes or stared at a particular object, delightful visual panoramas occurred which they called hallucinations. These were always reported as pleasant and, seemed to me, to be an exploitation of the subject s capacity to fix on an image and play tricks with their unwavering concentration rather than a hallucination. 

The book consists of two major sections—Principles and Application. Each section covers several major subject areas. The Principles section is divided into the following parts I. Water Chemistry and Mineral Solubility II. Soil Minerals and Surface Chemical Properties and III. Electrochemistry and Kinetics. The Application section also covers several subject areas IV. Soil Dynamics and Agricultural-Organic Chemicals V. Colloids and Transport Processes in Soils VI. Land-Disturbance Pollution and Its Control VII. Soil and Water Quality and Treatment Technologies. Each subject area contains one to three chapters. 

Our results supported this hypothesis signs with a neutral space location were remembered more accurately than signs with a body-anchored location. In addition, several subjects were observed to articulate the neutral space signs in a sequence of distinct locations. These results demon-... 

Robert Boyle, Occasional Reflections upon several subjects whereto is premis d a discourse about such kind of thoughts (London, 1665), p. 172. For the initial prompt for this discussion of twinkling stars, see J. H. Prynne, Stars, Tigers and the Shape of Words , William Matthews Lecture, Birkbeck, University of London, 1993. Prynne addresses this passage on p. 47. 

Robert Boyle, Occasional Reflections upon several subjects whereto is premis d a discourse about such kind of thoughts (London, 1665)... 

After a single oral dose of 50 mg to one subject, a peak serum concentration of about 0.05 ig/ml was attained in 2 to 3 hours. In several subjects, low concentrations (<0.01 pg/ml) of iV-monodesmethylpropiomazine were also observed (P. Hartvig etal., Curr. ther. Res., 1981, 29, 351-362). 

The most interesting aspect of Senac s book for the historian is perhaps the title which accurately reflects its implicit organization. In the introductory part of the book, Senac discusses several subjects with no apparent overarching organization—matter, the principles of bodies, the sulphur or oil, the mixture of elements, the magnetism of bodies, the... 

Some patients have electrocardiographic changes, such as prolongation of the QT interval. In a double-blind, pla-cebo-controUed, randomized study of the effects of dolase-tron mesylate 0.6-5.0 mg/kg in 80 subjects, there were transient and asjmptomatic electrocardiographic changes (small mean increases in PR interval and QRS complex duration versus baseline) in several subjects at 1-2 hours after infusion at doses of 3.0 mg/kg and over (33). 

The monthly Inhaltsverzeichnisse sowjetischer Fachliteratur is another example of East German abstracting services, appearing in several subject series since 1953 (Reihe III/B covers chemistry and biology). Each monthly issue abstracts totally, in German, well over 20 top Soviet chemical and biological journals (the list of these titles remains standard) published not more than 4 months before. Annual subject and author indexes to Inhaltsverzeichnisse are usually available within a year—which is sometimes earlier than the appearance of the subject indexes of the original Russian journals. 

Quality control involves several subjects that must be discussed in connection with dry chemistry. It is the aim of all quality control methods that all results supplied by the clinical laboratory representing a useful estimation of actual data should approximate these actual data as closely as possible and with a low scatter. Quality assurance is subdivided into internal and external quality control. Internal quality control should accompany each series of examinations even if there is only one sample to be examined. In addition, external quality control serves to examine the precision and accuracy of a laboratory as compared to other laboratories. Any external quality control without internal quality control is meaningless. 

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