Chemical Actions and Uses Commons^™

Circling The Drain: Regulating Nutrient Pollution From Agricultural Sources, William Gutermuth

Journal of Law and Health

The 2014 Toledo, Ohio tap water ban has, at least temporarily, put a spotlight on United States water supplies. Consequently, many Americans have begun to take a closer look at the quality of the fresh water bodies being used to supply tap water to their homes. Therefore, this Note analyzes the problems currently threatening the lakes, rivers, and other surface waters that are the source of fresh drinking water for huge populations in the United States. Part II examines the problem of nutrient pollution and explains the harmful effects it has on human health. Part III provides an overview of …

Characterization Of The Role That Alternative Ribonucleotide Reductases Play In Restoring Replication In The Presence Of Hydroxyurea In Escherichia Coli, Michael Sadek

PSU McNair Scholars Online Journal

DNA replication is essential for cells to grow and divide. Ribonucleotide reductase is an essential enzyme that is responsible for the formation of deoxyribonucleotides that are used in DNA synthesis during replication. Hydroxyurea is a chemotherapeutic agent that is thought to work by specifically inhibiting the ribonuceotide reductase to prevent replication. However, recent studies in E. coli have shown that following an initial period of inhibition, DNA synthesis then recovers in the presence of hydroxyurea, suggesting that the mode of death and cellular response to hydroxyurea is more complex than originally proposed. The E.coli genome encodes three ribonucleotide reductases that …

Buying Veterinary Products : Read The Label First, G A L Ward

Journal of the Department of Agriculture, Western Australia, Series 4

Chenicals for animal health, and processed feeds must be registered and labelled.

Registration is intended to insure that products are effective for the purpose they are sold, and safe when used according to instructions.

It is important to read the lable to understand the correct use of the product.

Control Of Insects In Cotton, D G. Shedley, D. L. Hardy, P. J. Michael

Journal of the Department of Agriculture, Western Australia, Series 4

Results of two experiments at the Ord Irrigation area in 1968 indicate that farmers may be spending more than necessary to obtain economic control of cotton pests in some seasons.

One experiment clearly demonstrated the relationship between low insect numbers and improved cotton yields—the second indicated that a moderate but well timed spray schedule, especially during the early part of the season, can result in more economic insect control than an intensive spray schedule.

Cleansers For The Milking Machine, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

WITH the opening of the flush season dairy farmers should make sure milking machines are working at maximum efficiency.

Machines not working efficiently can cause production losses and damage to cows as well as wasting farmers' time.