Summarizes recent research on hormonal control of fetal growth, presenting data obtained using a new method for studying the area. Effects of endocrine ablations and congenital deficiencies, studies of hormone/receptor levels, in-vitro techniques, hormones implicated in promoting fetal growth, problems with existing methodologies, and growth of…

Reviews graphical methods for representing ternary and quaternary systems, focusing on use of triangular composition diagrams. Examines some of the relevant geometry of triangles in general, showing that right isosceles triangles possess some very advantageous features for representing ternary systems. (JN)

Describes an experiment on the qualitative analysis of several over-the-counter analgesic tablets. Background information, procedures used (including high pressure liquid chromatography), and typical student results are included. (JN)

Highlights a survey which examined the extent/variety of current university/industry research interactions, characterized principal cooperative efforts, identified factors appearing important in their formation, and which provided perspectives on the current state of university/industry relationships. Concludes that interactive efforts to support…

Describes general concepts of remote sensing and provides three examples of how its techniques have been used in the context of environmental issues. Examples focus on the use of this data gathering technique in the visible (aerial photography), near infrared, and thermal infrared ranges. (JN)

A chemistry professor and an English professor combined their efforts in a regularly scheduled chemistry course to guide students in writing better laboratory reports. This approach is described, including criteria (which are part of the course syllabus) used to evaluate student papers. (JN)

Provides ideas and suggestions for helping students increase their problem-solving skills, including a four-step general problem-solving approach. Specific examples (considering qualitative problems and problem sequence) and comments on testing/grading are also provided. (JN)

The reaction between arsenite and iodate in acidic solution offers an excellent pedagogic introduction to such phenomena as traveling waves. Component reactions, traveling waves, and a mathematical model are discussed. Demonstrations described can easily be elaborated into a full laboratory experiment. (Author/JN)

A Beckmann arrangement was developed which explores the concept of stereospecificity and concurrently exposes students to synthetic, spectrophotometric, and chromatographic processes. Background information, laboratory procedures, and results are provided. (JN)

Hydantoins are a drug family lying within the broadly related ureide structural frame which encompasses many of the anticonvulsant drugs used in treatment of various types of epilepsy. Background information and experimental procedures are provided for the synthesis of the hydantoin 5,5-diphenylhydantoin. (JN)

Surveyed physiology teaching methods and compared results to 1969 and 1973 surveys. Respondents (107/139 physiology department chairpersons) indicated decrease in but continued use of laboratory exercises and a trend toward problem-solving sets, audiovisual aids, computer simulation, and computer assisted instruction. Data are provided for these…

Describes a simple, inexpensive electronic circuit used as a small analog computer in an experimental approach to the study of oscillations. Includes circuit diagram and an example of the method using steps followed by students studying underdamped oscillatory motion. (JN)

Continental crust underlies the continents, their margins, and also small shallow regions in oceans. The nature of the crust (much older than oceanic crust) and its dynamics are discussed. Research related to and effects of tectonics, volcanism, erosion, and sedimentation on the crust are considered. (JN)

The chemistry of the ocean, whose constituents interact with those of air and land to support life and influence climate, is known to have undergone changes since the last glacial epoch. Changes in dissolved oxygen, calcium ions, phosphate, carbon dioxide, carbonate ions, and bicarbonate ions are discussed. (JN)

Describes a course designed to familiarize students with alternative sources of energy, with emphasis on problem-solving strategies. Includes list of major topics/subtopics addressed and list of textbooks and recommended readings on alternative energy sources. (JN)