Journal of Undergraduate Sciences Harvard University Science Center 1 Oxford Street Cambridge, MA 02138		Past issues are available online and require the Adobe Acrobat plug-in for viewing. This program is available for free from Adobe Systems. Past issues may also be requested for a fee by writing JUS, or by contacting JUS via e-mail at: jus@hcs.harvard.edu. Winter 1999 The Winter 1999 issue of the Journal of Undergraduate Sciences marks JUS's first issue aimed at a high school audience as well as JUS's first major national distribution. [cover] [sample article] [sample supplemental guide article] Volume 3, Issue 2 Theory of Magnetic Monopoles and Electric-Magnetic Duality: A Prelude to S-Duality, Determination of the Distance to the Crab Nebula, A Single Amino Acid Substitution in the Autoantigenic Peptide Alters the Cytokine Profile Inducing Protective T Cells ...   Volume 3, Issue 3 Rotation Periods and Relative Ages of Solar-Type Stars, Design and Synthesis of RGD Mimetics as Potent Inhibitors of Platelet Aggregation, Apoptosis in LR73 Cells is Inhibited by Overexpression of the Multidrug Resistance (MDR) Protein, Directional Perception in the Human Auditory System, Cylinder Pressure in a Spark-Ignition Engine: A Computational Model ...