In addition, humans use various systems of reference that enable them to successfully navigate and wayfind.
ALS has been classified using various systems, the best known of which is based on predominant site of symptom onset and the predominance of upper and lower motor neuron signs at presentation: progressive bulbar palsy, pseudobulbar palsy, progressive muscular atrophy, primary lateral sclerosis and amyotrophic lateral sclerosis.
In Tanzania, in the 1990s, USD 30 million was used to gather health data using various systems but very little of it (USD 700,000) was spent in maintaining its CRVS; no population estimates were generated from the data it collected [ 7].
In the high performance liquid chromatographic series of experiments, fourteen synthesized compounds (1 14) were chromatographed on octadecyl silica adsorbent and their lipophilicity parameter (log kW) was determined using various aqueous systems: mixture of water and organic modifiers (methanol – MeOH, acetonitrile – MeCN or dioxane – DX).
A series of trials using various foundation systems was carried out at Camp Bastion to assess the capacity of a geosynthetic cell system called Neoweb.
Optimization for maximum fluorescence signal and melting transition was performed using various buffer systems at different concentrations of protein, salt, and ANS dye.
The optimum pH of recombinant AcCR was investigated within a pH range of 4.5 9.5 using various buffer systems at 50 mM.
Starting with Ijima's [1] discovery of carbon nanotubes (CNTs), there has been continual discovery and investigation into a series of CNTs using various CVD systems [1 31].
The optimum pH was determined within a pH range of 5.0 10.0 using various buffer systems at 200 mM as follows: sodium citrate buffer for pH 5.0 6.6, PBS for pH 6.6 8.0, Gly NaOH for pH 8.0 10.0.
In view of these differences, we do not intend to provide a unifying hypothesis to explain their pathogenesis; rather, we describe how applying the scientific method using various biological systems can expand our understanding of the underlying molecular mechanisms responsible for their pathology.
