Convention: Let A be a T×m matrix; the notation vec(A) will mean the Tmelement column vector whose first set of T elements are the first colum of A, that is a.1 using the dot notation for columns; the second set of T elements are those of the second column of A, a.2, and so on. Thus A = [a.1, a.2, · · · , a.m] in the dot notation. An immediate consequences of the above Convention is Vec of a pr...

Five photosynthesis inhibiting herbicides were com pared for their mobility in soil colum ns used as the penetration m odel. The vertical m ovem ent o f these com pounds in soil was an a ­ lyzed by a newly developed technique in which herbicide distribution was determ ined by the intensity o f chlorophyll fluorescence in Chlorella cells suspended in aqueous extracts o f soil samples from variou...

Pig production is based on routine deworming and very rarely includes endoparasitological diagnosis. Monitoring pig through a consideration of endoparasites in the herd should be part health program, which will directly translate into amount costs improve condition animals. The aim this study was diagnosis endoparasitic infection sows piglets as an element sustainable production. Parasitologica...

iii Natural disturbances are an integral part of the processes shaping and maintaining the forested landscapes in British Columbia. Understanding the historic variability in the frequency, intensity/severity, size, and duration of natural disturbances is important for guiding sustainable forest management and projecting the effects of natural disturbances on habitat and timber supply. This repo...

The objective of this case report is to characterize the sudden fatality livestock associated with a massive attack dark rice field mosquitoes (Psorophora columbiae) after passage Hurricane Laura in southwest Louisiana late August 2020. In 3 days, approximately 30 deer, 600 beef cattle, 100 sheep and horses died following brief history weakness or, most cases, no clinical signs prior death. Sev...

For a finite real reflection group W with Coxeter element γ we give a uniform proof that the closed interval, [I, γ] forms a lattice in the partial order on W induced by reflection length. The proof involves the construction of a simplicial complex which can be embedded in the type W simplicial generalised associahedron.