Hell, she was there when I had such bad digestion problems that certain substances were needed to cure certain things.
Some believe that more intellectual substance is needed in the classroom, leaving skill-building and "delivery systems" for on the job.
Given how fraught the debate over stimulus and deficit-cutting has become, is it a good idea to hammer out such topics at such a high-profile summit Given the importance of the issues involved, it's crucial not to settle for show when substance is needed.
More basic research at the level of pathogenesis and catheter substance is needed to design novel strategies.
The IC50, a parameter used to determine how much of a substance is needed to inhibit a biological process by 50%%, ranged from 1 to 39.8 µmol/L.
Because of the special water quality characteristic of low C/N ratio in such water body as ground water, drinking water or recirculating aquaculture system (RAS), additional liquid organic substance is needed as external carbon source in traditional denitrification system, which requires sophisticated control of dosage and continuous monitoring (Sauthier et al. 1998).
The drugs may block the production of substances that are needed by the kidney.
For Living, one might put the Organism or Eukaryotic Cell as the main systemic object and substances that are needed to support life, like Oxygen, Water and Food, as the environmental objects.
However, if no site-specific functions, such as state storage in the queuing system or non-public direct retrieval of PubChem structures via compound (CID) or substance (SID) identifiers, are needed, the PubChem sketcher server process can be run with a standard interpreter from the CACTVS toolkit.
