Plethodon electromorphus

Number of Pages: 3Integrative BiologyGeological Science

Membrane Lipid Extraction Methods from Sorghum bicolor

Plants are the basis of the world as we know it. As sessile beings, there are often subject to many environment stressors like drought, extreme temperatures, etc. One way of analyzing how plants respond to these stressors is by monitoring changes in their lipid compositions. Having a better understanding of how plants respond to different stressors can have very important implications when it comes to cultivating crops. When testing lipid composition, it is important to measure levels as they were in the living tissue. The problem is, enzymes known as lipases are active during extraction and can greatly change the lipid composition. We tested three methods for inactivating these lipases and extracting the lipids on Sorghum bicolor leaf tissues. Two of the methods use formic acid in organic solvent for different times, while the second uses boiling isopropanol. To analyze lipase activity, we measured the relative abundance of lipid species formed by lipase activity. In the end, we determined each method is relatively comparable to the other

Separation of small particles due to density differences in a CFB riser system

Common wet density separation processes require large amounts of water, expensive wastewater cleanup, and do not effectively recover fine particles. A circulating fluidized bed riser system was developed as an exploratory system for dry separation by density that will eliminate many problems associated with wet separation. The system sends an air-solid mixture through a vertical riser. The flow pattern in the riser, established by varying gas velocity (Uo) and mass flux (Jp), allowed dense particles to collect at the bottom of the riser while less dense particles were collected through the riser exit at the top. The system was developed with many variables used to determine the most effective system geometry for separation. The system was capable of separating 83% of the dense particles and only 1.3% of the less dense particles from the mixture. The separation quality can be adjusted by altering Uo, Jp, or the system geometry

Immediate intuition in the new rationalism of Albert Schweitzer

This item was digitized by the Internet Archive. Thesis (Ph.D.)--Boston Universityhttps://archive.org/details/immediateintuiti00reg

Introduction

The Global Africana Review (GAR) is now in its third year of publication and remains an example of our commitment to our goal of featuring student academic research conducted in the Department of African, African American, and Diaspora Studies, which represents disciplines that include Anthropology, Comparative Literature, Development Studies, Film, History, Human Rights, Linguistics, Music, Political Science, and Public Policy