Methods of studying hazards: Animal testing

-

Methods of studying hazards: Animal testing



Answer:Epidemiological studies are time-intensive and the resultant affects could be attributed to factors other than the toxicant of interest, it is often necessary to conduct laboratory experiments to establish causation

Comments

Post a Comment

Popular posts from this blog

What is JAD and how are users involved? What are advantages and disadvantages of JAD?

-
What is JAD and how are users involved? What are advantages and disadvantages of JAD? Joint application development, is a popular fact finding technique that brings users into the development process as active participants. Users have a vital stake in the information system, and should participate fully in the development process. They are/should be involved at every stage of development. Advantages : Users can participate effectively in the requirements modeling stage. More accurate statement of systems requirements, better understanding of common goals and stronger commitment to success of the new project Disadvantages : More expensive, can be cumbersome if the group is too large for the project.
Read more

JAD Advantages and Disadvantages

-
JAD Advantages and Disadvantages : Compared with traditional methods, JAD is more expensive and can be cumbersome if the group is too large relative to the size of the project. Many companies find, however, that JAD allows key users to participate effectively in the requirements modeling process. Read:  What is JAD and how are users involved? What are advantages and disadvantages of JAD? When users participate in the systems development process, they are more likely to feel a sense of ownership in the results, and support for the new system. When properly used, JAD can result in a more accurate statement of system requirements, a better understanding of common goals, and a stronger commitment to the success of the new system. More:  RAPID APPLICATION DEVELOPMENT
Read more

Why do firms need to invest in net working capital?

-
Why do firms need to invest in net working capital? Answer: - Short-term financial planning is concerned with the management of the firm's short-term, or current, assets and liabilities. The most important current assets are cash, marketable securities, inventory, and trade receivables. The most important current liabilities are bank loans and trade payables. - The difference between current assets and current liabilities is called NET WORKING CAPITAL (NWC). NWC arises from lags between the time the firm obtains the raw materials for its product and the time it finally collects its bills from customers. The OPERATING CYCLE is the length of time from the purchase of raw materials to the collection of cash from customers. - The cash CONVERSION CYCLE is the length of time between the firm's payment for materials and the date that it gets paid by its customers. THE CASH CONVERSION CYCLE is partly within management's control. For example, it can choose to have a higher ...
Read more