A Positivity-Preserving Difference Scheme for Reaction-Diffusion Systems

It is proved that the positivity domain of schemes belongs to stability domain of schemes.

The local truncation error,stable conditions and positivity condition,for all these difference schemes areeasily given.

Objective To investigate the effects of early use of positive suggestion therapy on the mentality of the patients with renal transplantation.

The investigation of source term in numerical grid generation equations on the influence of grid orthogonality;

Control of grid spacing and orthogonality in numerical generationof body-fitted curvilineal coordinate system;

Note on H orthogonality and characterizations of inner product spaces;

Economic analysis and justice comment on medical service situation of all-level hospitals in Guangzhou;

Reflection on the Justice of Health Care Reform;

The "free construction" based upon the "law of beauty" should be considered the yardstick of justice for the ecological relationship between man and nature.