1. A mass polarizability molecular beam spectrometer

   • Herbert A. Pohl
   • Joe S. Crane

   OriginalPaper Pages: 103 - 110

2. A mechanism of translocation based on high proton mobility and K⁺ counterflux at negatively charged surfaces in sieve elements

   • M. Amin

   OriginalPaper Pages: 111 - 116

3. Some physics aspects for 21st century biologists

   • S. Rowlands

   OriginalPaper Pages: 117 - 122

4. Theory of muscle contraction II. Isotonic contraction

   • M. Amin

   OriginalPaper Pages: 123 - 126