interaction (water-hating)
non-polar molecules do not dissolve in water
- amphpathic : a single molecule has two portion, polar and non-polar
fatty acids form micelles
☆ lowering energy makes the system more stable and more likely to exist
2. Hydrogen bond
electrostatic interaction + dipole-dipole interaction
hydrogen bond donor : H
hydrogen bond acceptor : O, F, N
the conversion of hydrogen gas to hydrogen ions and electrons. They are found in the heterocysts and not in the vegetative cells of nitrogen-fixing strains of cyanobacteria. They remove the hydrogen gas produced by nitrogenase when they carry out nitrogen fixation.
Uptake hydrogenase is encoded by hup genes. It is a heterodimeric enzyme with at least 2 subunits, HupL and HupS. HupL is a la
1. Introduction
1) Definition of preservation and food-spoilage micro-organisms
Food preservation is the process of treating and handling food to stop or greatly slow down spoilage (loss of quality, edibility or nutritive value) caused or accelerated by micro-organisms. Some methods, however, use benign bacteria, yeasts or fungi to add specific qualities and to preserve food (e.g., cheese, wine
To our Shareholders, Associates and Customers: Let me begin by expressing how proud I am of everything our Associates have accomplished during the fiscal year ended January 31, 2004. Wal-Mart generated over $256 billion in global revenue, establishing a new record and adding more than $26 billion in sales. Your Company earned almost $9.1 billion in net income and grew earnings per share by over 1
1. Introduction
The Hewlett-Packard (HP) is a leading company in the world which has been specializing its service offerings in accordance with changing IT market. As of 2004, its service offerings expanded through theacquisition of Compaq (even if it is regarded as an example of failed M&A), which allows HP to achieve economies of scale in terms of size, technology, and global network.
HP h