Effect of Ultraviolet Radiation on Discharged Pycnidiospores of Septoria Tritici

Plant Patholog

Improvement of the Quality of Cotton Fabric Through Functionalization of Tagetes minuta (TaMi) Dye

Non-functionalized and functionalized Tagetes minuta (TaMi) dye obtained using methanol and water showed varied fastness onto cotton fabric. Furthermore, HPLC profile of the methanol dye showed more peaks and hence was expected to be richer in secondary metabolites that impacted on the quality of the dye. This was confirmed from the IR spectrum which showed more functional groups from this dye as compared to the water dye. The functionalized methanol dye exhibited good fastness onto cotton textile and minimal bleaching effects, as compared to non-functionalized H2O and MeOH dye. Furthermore, the process involved the use of low quantities of the dye material/solution as compared to non-functionalized dye, hence resulting to less impact on environmental degradation. The colors of the textiles produced from the methanol functionalized dye were highly resistant to fading or running. The cotton fabric articles that were tri-mordanted at 80-90 °C and dyed using the functionalized dye exhibited uniform absorption of color of the dye and good fastness. Functionalization of the methanol TaMi dye was obtained by the reaction of the TaMi dye with 1,4-butanediol diglycidyl ether (BDDE). The alum tri-mordanted textile materials produced brighter colors of brown as compared to the singly alum mordanted fabrics. This is due to the tannin factor in tri-mordants that led to the brightening effect. Furthermore, longer duration of time for tri-mordanting might have had a greater impact to the brightness effect. Additionally, characterization of the dye obtained using the two solvents was done using HPLC and IR. The formed functionalized dye has many applications as colorants in textiles, paints, inks, plastics, cosmetic articles and electronic materials. Keywords: Cotton fabric, Tagetes minuta, dye, functionalized, 1,4-butanediol diglycidyl ether, colorants DOI: 10.7176/JNSR/11-16-02 Publication date:August 31st 202

A Relationship In Plant Disease Control Methods Between The United States Of America And Kenya On Selected Major Field Crops

Both Kenya and the United States experience many of the same crop problems. Though both countries differ a great deal in economy and development, several disease control procedures can be shared. The use of resistant varieties, crop rotation, chemical seed treatment and cultural practices are useful practices in both countries

Food service trends in New South Wales hospitals, 1993-2001

A survey of the food service departments in 93 hospitals throughout NSW Australia (covering 51% of hospital beds in the state) was conducted using a mailed questionnaire and the results compared with those from similar surveys conducted in 1986 and 1993. Over the past eight years there has been a significant increase in the proportion of hospitals using cook-chill food service production systems, from 18% in 1993 to 42% in 2001 (p\u3c0.001). Hospitals with cook-chill systems had lower staff ratios than those with cook-fresh systems (8.3 vs 6.4 beds/full time equivalent staff; p\u3c0.05), but there was no significant difference in the ratio of meals served per FTE. There was no difference between public and private hospitals in terms of ratios of beds or meals to food service staff. Managers using cook-chill systems reported significantly lower levels of satisfaction with the food service system compared to those using cook-fresh. Two aspects of the services have not changed since the last survey: approximately a quarter of food service departments are still managed by staff without formal qualifications and meal times remain the same, with more than 90% of hospitals serving the evening meal before 5.30pm and a median of 14.25 hours gap between the evening meal and breakfast