Effects of soil treatments on Bradyrhizobium japonicum nodulation in soybeans
The microorganism, Bradyrhizobiumjaponicum, displays a symbiotic relationship with soybean plants. There are different factors that may affect the relationship of this microorganism with plant biomass. These factors may be pH, temperature, the nutrition status and density of soil. The aim of this study was to determine the effects of different soil treatments, in different soil types, on nodule formation and the dry weight of the plant. For this purpose, soil samples were collected from three locations, namely, at a forest, near a stream and potted soil. Each sample was then analyzed with a hydrometer and classified to a soil type. The forest soil was of clay loam type, the pot soil was loam soil and the stream sample was loamy sand. The samples were subjected to different treatments, such as sterilization and inoculation. The dry weight and number of nodules on each soil type was measured. Results showed that the greatest number of nodules were in plants that were grown in soil samples grown from the stream and least for samples collected from the forest. However, no direct relationship was observed between the number of nodules and dry weight of plants. Moreover, according to observations, the most important factor in determining nodule formation and dry weight of plants was inoculation. These results provide a significant insight to certain factors that may enhance nodule formation and crop yield.
Country of origin effects on consumer perception of Norwegian cod liver oil
With one confounding variable between the groups, the examination of the given experimental variable (i.e. the inclusion of the flag on the product image) and its effect on perceptions yields very useful results. These results do not support any of the given hypotheses, however, and in fact show the exact opposite reaction of the hypothesized reactions when statistically significant changes are noted. These differences are themselves relatively few, as well, and further research would be needed to draw any reliable conclusions in regards to the questions asked in this research.
Developing a code of ethics for Meadwestvaco Specialty Chemicals
Code of Ethics
"The time is always right to do what is right" (Martin Luther King, Jr.)
"The first step in the evolution of ethics is a sense of solidarity with other human beings"
(Albert Schweitzer).
Introduction
This paper presents a code of ethics for the Meadwestvaco (MWV) Specialty Chemicals Company. MWV produces activated carbon for use in beverages, sweetener, various food products, pharmaceuticals and chemical / gas/air environmental industries. Notwithstanding any particular product or service that a company may be known for, every company should have a code of ethics that provides guidelines for how employees, managers, executives and board members are expected to behave. This paper offers a code of ethics for MWV, along with other particulars that accompany the values and principles of MWV.