Pathology challenges Turf nematodes are worm-like animals that are less than one-eighth of an inch long. Because they can't be seen by eye or hand lens, live hidden in the soil and cause no specific symptoms in turfgrasses, nematode damage goes unnoticed or is explained away to other problems, such as poor fertility, soil compaction, watering or diseases. The first symptom of nematode damage is...

Alnus maritima and Alnus serrulata are riparian shrubs that occur in similar habitats in the southern and eastern United States.Alnus serrulata is abundant throughout this range, but A. maritima is rare, occurring only in small populations in Oklahoma and Georgia and on the Delmarva Peninsula. Alnus maritima is more resistant than A. serrulata to water and temperature stresses, but the degree t...

A data structure and toolkit are presented here that allow for the description and manipulation of mathematical models of three-manifolds and their interactive display from multiple viewpoints via the OpenGL 3D graphics package. The data structure and vector math package can be extended to support an arbitrary number of Euclidean spatial dimensions. A model in 4-space is described by its boundi...

INTRODUCTION Common clinical experience suggests that tooth whitening agents are 100% effective. This study uses meta-analysis of data from published randomized controlled clinical trials to determine the efficacy of tooth whitening agents. METHODS A MEDLINE search strategy was developed and implemented to systematically identify clinical trials on dentist-prescribed, home-applied tooth white...

Partial shading of a PV installation has a disproportionate impact on its power production. This paper presents background and experimental results from a single string grid-tied PV system, operated under a variety of shading conditions. In this configuration a shadow can represent a reduction in power over 30 times its physical size. Results are presented relating size and positions of shading...

An increasing ecological awareness and greater efforts on a global scale to reverse processes of environmental degradation give rise to new forms of social and economic conflict-a "politics of resource stabilization"-which political ecology theorists have yet to fully explore. Blaikie and Brookfield (1987) argue that the long-term payback period of capital-intensive and natural reclamation proc...

The use of reactive dyes has increased rapidly due to outstanding properties, growing consumption of cellulosic fibers, and decrease in the production of other application classes of dyes for cellulosics because of cost and health hazards. However, reactive dyes cause the greatest effluent problems for the dye industry. This study explored reusing these dyes in which the residual dyeings were d...

AIM There is limited scientific information on the relationship between tooth shade, age, gender, and skin color in black Africans. This lack of knowledge may impact the ability of the prosthodontist to select artificial teeth for completely edentulous patients. This study explores the possibility of a relationship between tooth shade, gender, age, and skin color in a black African population. ...

Background: Today, the frequency of seeking an aesthetic smile in patients who apply to dentistry clinics has increased compared past. This expectation is fundamental restorations anterior region, as well shape, size, and proportion, color harmony. One most challenging stages prosthetic dental treatment find natural correct for planned restorations. study aims examine commonly used visual match...