Bacteriophages ( phages ) are obligate intracellular parasites that multiply inside bacteria by making use of some or all of the host biosynthetic machinery . They are viruses that infect bacteria

Use of any multiresidue method (MRM) is supported by available information about how potential residues behave through the steps of the method. To provide that support for PAM I MRMs, additional chemicals are continually tested through the method steps and the resulting data compiled in a single database. All PAM

（1) Subject to the provisions of regulations 10 and l1 of this Annex and paragraph (2) of this regulation, any discharge into the sea of oil or oily mixtures from ships to which this Annex applies shall be prohibited except when all the following conditions are satisfied a) for an oil tanker, except as provided for in subparagraph (b) of this paragraph :

6.5 Cleaning the Comyn oil/water Separater To clean out the separator ensure that all oil possible has been drawn off through the oil recovery valve and scum valve, and that the separator is full of water. Turn on steam to heating coil; also steaming out connection, and allow the separator to become thoroughly hot

5.2 Operation Safety regulations In all centrifugal separators the bowl rotates at a very high speed, normally between 100 and l50 revolutions per second. Thus, very great forces are released and it is essential, therefore, to follow strictly the directions given in the Instruction Book concerning assembly of parts, starting, stopping and overhaul

Learning Objectives The learning objectives of this section are to make all engineers, engine cadets and other crew members who are involved in the handling of fuels onboard, familiar with: – How to handle the fuel. – Take the necessary simple precautions by following test procedures

The domestication of different grasses, all members of the monocotyledonous family Gramineae, was a seminal event in the history of mankind. The cultiva￾tion of these plants led to the generation of agricultural surpluses. These in turn enabled societies in different parts of the world to make the transition from a nomadic or semi-nomadic lifestyle to one based on communities living in per￾manent settlements

What Is the Question of the Chapter? Suppose we observe a collection of a consumer’s choices, can we discover his/her preference? Is this possible at all? If so, under what conditions is this possible? (This is the reverse question of finding the optimal choice)

The generation of metabolic energy is a major activity of all cells, and two cytoplasmic organelles are specifically devoted to energy metabolism and the production of ATP. Mitochondria are responsible for generating most of the useful energy from the breakdown of lipids and carbohydrates, and chloroplasts

Directions: People in all countries enjoy gifts. Sometimes the meaning are different in different cultures. Listen to the following dialogues and look at the pictures below. If it is not a proper gift in a certain country for an ordinary friend, cross out (×) the picture and check (√) the correct reason why it is a proper gift