This manuscript describes a flexible, pilot-scale setup that can be used for training students and carrying out research in process systems engineering. The setup allows one to study a variety of process systems engineering concepts such as design feasibility, design flexibility, control configuration selection, parameter estimation, process and…

Describes the diversity in the usage of the term "community" by ecologists and paleoecologists. (BR)

The process of projecting textual models onto the phenomenal world began with the invention of writing and accelerated through the manuscript culture of classical antiquity and the Middle Ages into the age of print. In Francis Bacon's work, the book (a metaphor for the phenomenal world) adapted to the demands of the printed text and reflects the…

Psychology stands in the paradoxical position of adhering to outmoded conceptions of knowledge while being looked upon as providing an instrument for a more adequate conception. Cognitive psychology's schema theory provides a conceptual equivalent to Kuhn's learned perception of similarity and the related notion of exemplar, which serves to…

Recent surveys have shown that pupils find the topics of esterification and condensation difficult. Reasons for the difficulty are not clear. Described is research designed to determine where the difficulties were visual or conceptual in origin. (RH)

Presents the text of a speech given to a conference of physics teachers in which the full spectrum of elementary particles is given, along with their classification. Also includes some teaching materials available on this topic. (PEB)

Presents a test stressing back-of-the-envelope questions most academic scientists should be able to answer. Topics include laser fusion, emergency core cooling, solar sea power, urban transportation, etc. Suggests that question-answer format can be used to transmit science and society subject matter more effectively than sophisticated computer…

Favorably comments on Gerald Holton's concept of "thematic analysis" as a tool for the historiography of science. The author relates this type of analysis to other disciplines and discusses some of its consequences, including the rejection of relativism in science history. (MLH)

A three part article 1) considering basic requirements for a language typology theory, including qualitative, comparative and quantitative concept development, 2) analyzing and evaluating several of thee better known language typology systems, and 3) comparing and contrasting those systems. (DH)

This textbook is a version of "First Course in General Science" simplified for younger pupils. There are fewer quantitative conceptions, many mathematical problems have been eliminated, and, where it has been possible without sacrificing clearness, much detail has been omitted. It discusses, in terms that the youthful mind can…

A STUDY WAS MADE TO DETERMINE THE EXTENT TO WHICH THE ATTITUDES OF A SELECTED GROUP OF HIGH SCHOOL STUDENTS TOWARD SCIENCE AND SCIENTISTS COULD BE FAVORABLY CHANGED BY VIEWING 10 "HORIZONS OF SCIENCE" FILMS. AN EXPERIMENTAL GROUP OF 122 STUDENTS AND A CONTROL GROUP OF 138 STUDENTS WERE ROUGHLY EQUIVALENT. BOTH GROUPS WERE PRETESTED WITH…

This paper describes two quantitative methods of hierarchical analysis used to measure the similarity of sequences or hierarchies of steps on two test formats, the Randomized Multiple Choice (RMS) format, and the free-response problem test format. The investigator first used the Consistency Ratio method to quantitatively assess the transfer…