ASTRONOMY / 55


of the positional and kinematical parameters of the bodies in
the universe, and the physical and geometric significance of
these parameters. The laboratory consists of the numerical (and
theoretical) solution of relevant problems.
AST 6165-Radiopropagation and Ionospheric Physics I (2)
Prereq: PHY 4322. Propagation of electromagnetic waves in
magnetoionic media, with emphasis on the terrestrial
ionosphere, and cosmic conditions such as solar corona and
interstellar media.
AST 6166-Radiopropagation and Ionospheric Physics 1I (2)
Prereq: AST 6165. Ionospheric electron density and ion com-
position profiles; diurnal, seasonal, and global variations;
presunrise effects; electron and ion temperatures; solar flare and
magnetic storm effects.
AST 6167-Atomic Physics of Planetary Atmospheres (2)
Prereq: basic physics and mathematics through integral calculus.
Atomic and quantum theory, quantum mechanics and the
central field problem, atomic and molecular spectroscopy,
collisional cross sections for aeronomy.
AST 6168-Physics of the Earth's Upper Atmosphere (2) Prereq:
AST6167. Solar-terrestrial relations, aurora, airglow, and iono-
spheric phenomena. Remote sensing of atmospheric emissions
and scattered solar radiation.
AST 6169-Physics of Planetary Atmospheres (2) Prereq: AST
6168. Radiative transfer in planetary atmospheres, from x-ray
to radio regions. Discussion of recent studies of the atmospheres
of Venus, Mars, Jupiter, and other planets.
AST 6214-Stellar Astrophysics I: Atmosphere (3) Prereq: AST
5210 or equivalent. Theoretical approach to the study of stellar
atmospheres.
AST 6215-Stellar Astrophysics II: Interior (3) Prereq: AST6214
Theoretical approach to the study of stellar structure.
AST 6216-Stellar Astrophysics III: Evolution (2) Prereq: AST
6215. Theoretical approach tothe study of stellar evolution.
AST 6265-Variable Stars (2) Prereq: AST3019C. Classification,
light and spectral changes, population distribution, physical
processes causing variability, the place of variables in stellar
evolution. Use of variable stars in galactic and extragalactic
studies.
AST 6274-Analysis of Binary Star Observations (4) Prereq: AST
5270. Analytical study and theoretical interpretation of obser-
vational data for eclipsing, spectroscopic, and visual binary
systems.
AST 6309-Galactic and Extragalactic Astronomy (4) Prereq:
AST3019C. Observations and interpretations of the kinematics,
dynamics, and structure of the Milky Way Galaxy, extragalactic
objects, and galaxy clusters.
AST 6316-Stellar Dynamics (3) Prereq: partial differential
equations, complex variables. Introduction to dynamics of stellar
systems, with emphasis on cluster dynamics. Three main
approaches are treated: analytic, statistical-mechanical, and
experimental (computer simulations). Basic techniques are
presented, and dynamical evolution of clusters is described.
AST 6336-Interstellar Matter (3) Prereq: AST5210. Complex
interplay of physical processes that determine the structure of
the interstellar medium in our galaxy; emphasis is placed upon
a comparison of observational data with theoretical prediction.
AST 6416-Cosmology (3) Prereq: PHS 6606. Introduction to
the observational background and to the theory of cosmology.
AST 6506-Celestial Mechanics 1 (2) Prereq: AST3019C, PHY
4222. Analytical and numerical computation of orbits.
AST 6507-Celestial Mechanics II (2) Prereq: AST 6506.
AST 6607-Positional Astronomy (4) Prereq: AST 5600.
Numerical methods (interpolation, errors, least squares) used
in astronomy, especially positional astronomy, coordinate
systems and their conversion, reduction of observations
(especially reduction to apparent place), time systems, and the
determination of proper motion and parallax.
AST 6905-Individual Work (1-3; max: 6) Supervised study or
research in areas not covered by other courses.
AST 6910-Supervised Research (1-5) S/U.
AST 6935-Seminar in Modern Astronomy (1; max: 6) Recent
developments in theoretical and observational astronomy and
astrophyics. S/U.
AST 6940-Supervised Teaching (1-5) S/U.
AST 6971-Research for Master's Thesis (1-15) S/U.
AST 7157-The Giant Planets (2) Prereq: AST 5114 orASI 6206.
Jupiter, Saturn, Neptune, and Uranus; their origins and evolu-


tion, interiors, gravitational-and magnetic fields, atmospheres,
ionospheres, magnetospheres, electromagnetic emissions; and
satellites. Emphasis is on Jupiter.
AST 7279-Close Binary Stars (2) Prereq: AST 6274. Role of
close binaries in stellar evolution. Nonperiodic phenomena,
mass loss and exchange, novae and nova-like variables, period
changes..
AST 7939-Special Topics (2; max: 12) Assigned reading,
programs, seminar, or lecture series in a new field of advanced
astronomy.
AST 7980-Research for Doctoral Dissertation (1-15) S/U.
PHS 6606-Special and General Relativity (4) Prereq: PHY
6246, tensoranalysis, invariance. Einstein's special and general
theories of relativity; relativistic cosmology.

BIOCHEMISTRY AND MOLECULAR
BIOLOGY
College of Medicine
 GRADUATE FACULTY 1982-83
Acting Chairman: T. W. O'Brien. Graduate Coordinator:
P. J. Laipis. Professors: C. M. Allen, Jr.; R. P. Boyce; P. W.
Chun; M. D. Corbett; A. F. Esser; C. M. Feldherr; W. R.
Fisher; M. Fried; R. J.. Mans; T. W. O'Brien; R. M.
Roberts; D. N. Silverman; G. S. Stein; M. Young.
Associate Professors: R. D. Brown, Jr.; R. J. Cohen; B. M.
Dunn; M. S. Kappy; P. J. Laipis; M. K. Raizada; J. L. Stein;
A. R. Stevens. Assistant Professors: K. J. Angelides; W. C.
Buhi; V. Chau; M.S. Kilberg; M. J. Koroly; P.M.
McGuire.
 The Department of Biochemistry and Molecular
 Biology offers the Master of Science and Doctor of
Philosophy degrees in biochemistry with specialization
in physical biochemistry, molecular biology, cell biology,
and medical biochemistry.
 Specific areas of study include structure and function
of cellular and nuclear membranes in mammalian cells;
transport of molecules into the cell; regulation of cell
division and gene expression; biochemistry of differ-
entiation; biochemical genetics; molecular biology of
nucleic acids; replication and repair in bacterial and
eukaryotic cells; biosynthesis and structure of nucleic
acids, proteins, polysaccharides, lipids, lipoproteins;
isoprenoid metabolism; physical biochemistry of nucleic
acids and proteins; mechanism of enzyme action; and
marine biochemistry.
 New graduate students should have adequate training
in general, organic, quantitative, and physical chemistry
as well as in physics, biology, and calculus. Minor
deficiencies may be made up immediately after enter-
ing Graduate School.
 Doctoral candidates are required to take several
biochemistry courses which include BCH 6065, 6156,
6206, 6415, 6876 and 6936. Depending upon interests
and background of the student, additional courses are
recommended from the following list: BCH 6296, 6746,
7077 and 7257. The course of graduate study for doctoral
candidates also includes advanced organic and physical
chemistry, physiology, microbiology, and genetics.
BCH 6065-Advanced Physical Biochemistry (3) Prereq: general
biochemistry and physical chemistry or consent of instructor.
Physical chemistry of biological molecules and the techniques
for their study. Constitutes one of the three core biochemistry
courses.
BCH 6156C-Research Methods in Biochemistry (1-4; max: 8)
Prereq: BCH 6065, 6206, 6415. Only by special arrangement.
Biochemical research in which the student refines research
techniques in physical biochemistry, intermediary metabolism,
molecular biology, and cell biology under supervision of a staff
member.