张载为学，志在 “为天地立心，为生民立 道，为去圣继绝学，为万世开太平”（《近思 录拾遗》），可谓高远；“终日危坐一室，左 右简编，俯而读，仰而思，有得则识之，或中 夜起坐，取烛以书。其志道精思，未始须臾息， 亦未尝须臾忘也”（《宋史·张载传》），可谓 尽力。主要的哲学著作有:《正蒙》、《横渠易 说》、《经学理窟》和《张子语录》等，后人 编为《张子全书》

一. 生平与创作概况 老舍（1899-1966），原名舒庆春，字舍予，满族人。 1924年夏，老舍到英国伦敦大学东方学院任讲师。 1966年8月24日，老舍含冤跳太平湖自杀

Prof. Dava Newman 16.423J/HST515J Space Biomedical Engineering and Life Support Mars Reference Mission

Physiological System Neurovestibular System Fluids and Electrolytes Cardiovascular System Clinical

Thematic Analysis: Outside Communications Receive Replacement Personnel or Visitors Receive Information F rom Outside Receive Mail or Fax From Friends or Family I Write, Fax, or Telephone t o Friends or Family

The Fundamental problem The Fundamental problem Bones get less dense as we age Bones get less dense as we age Old people with low density bones Old people with low density bones fracture easily fracture easily Space -flight rapidly causes bones to flight rapidly causes bones to get less dense get less dense

Principal Aim To assess the strength changes, and associated change in fracture risk, due to structural alterations in the proximal femora of astronauts experiencing long￾term weightlessness

Early Ideas about Muscular Contraction Hippocrates thought that the tendons caused the body to move (he confused tendons with nerves, and in fact used the same word, neuron, for both)

Musculoskeletal Dynamics Grant Schaffner

1. In shortening, the relationship between the Force and Velocity is (Hill's Curve - know this!!): (T+a)(v+b) = (T0+a)b Hyperbolic Form