nce County, Wisconsin was the first to receive systematic study (Giese et al., 1964; Westing, 1966; Millers et al., Sugar maple (Acer saccharum Marsh.) decline has been a problem 1989). Since then, well-documented sugar maple deon the Allegheny Plateau for the last two decades. Previous work found that sugar maple is predisposed to decline by poor nutrition clines have occurred in Massachusetts...

One of the developments that can lead to a wider usage of grids technologies is grid-enabling of computer algebra systems. Several software packages allow nowadays the remote execution of non-proprietary or legacy codes. The common facilities and limitations of those packages are analyzed here. A pattern is establish in the construction of a grid-enabled version of a computer algebra system, ap...

We use the visualization and animation capabilities of Maple throughout our courses. Animations are used in presentations in class from first year onwards. For example, animations for Newton’s method and for fixed point iteration; to illustrate how slicing is used to generate the domain for double integration; to show how the error function (for the collocation method solution of a boundary val...

Maple syrup urine disease (MSUD) is an autosomal recessive condition with an incidence of approximately 1 in 150 000 live births with a higher incidence amongst children from consanguineous relationships [1]. It is caused by an enzymatic deficiency with reduction in oxidative decarboxylation of branched-chain amino acids (BCAA) (leucine, isoleucine and valine) resulting in elevated levels and t...

Sugar maple, Acer saccharum, decline disease is incited by multiple disturbance factors when imbalanced calcium (Ca), magnesium (Mg), and manganese (Mn) act as predisposing stressors. Our objective in this study was to determine whether factors affecting sugar maple health also affect growth as estimated by basal area increment (BAI). We used 76 northern hardwood stands in northern Pennsylvania...

BACKGROUND Although numerous risk factors for adverse outcomes for older persons after an acute hospital stay have been : identified, a decision making tool combining all available information in a clinically meaningful way would be helpful for daily hospital practice. The purpose of this study was to evaluate the ability of the Method for Assigning Priority Levels for Acute Care (MAPLe-AC) to ...

background: precarious employment is a major social determinant of health and health inequalities with effects beyond the health of workers. objective: to investigate the association between precarious employment and sickness absence in 4 nordic countries, denmark, finland, norway, and sweden. methods: logistic regression analyses were conducted separately for each country on data from 4186 res...

Closed-loop, model-based visual target recognition and tracking in extreme lighting conditions is expensive to develop and computationally resource-intensive. To reduce the development cycle, improve software reliability and reduce the computational requirements for such algorithms, we have adapted Maple code generation to the problem of automatically generating efficient implementations of fam...

It is well known that many varieties of Maple trees produce sugar containing sap in the springtime. The average concentration of Sucrose in Sugar Maple sap is estimated to be approximately 2% in concentration. The purpose of this study is to tap maples present on the St. Johns campus and obtain samples to compare their sugar concentrations to those of the sugar maples in the St. Johns Sugar bus...

In this paper we report measurements concerning the conductivity of water and ions and the interaction between the two in excised pieces of xylem of red maple stems under various conditions. We have also demonstrated that it is possible to detect the flow of solutions through the stems of maple by measuring the degree of interaction between the flow of water and ions. In this technique we apply...