testing methods are not adequately recorded or reported, assuring the quality of the information generated—and thus, the quality of the compost produced—is impossible. Since sample collection, handling, storage, and shipping are generally conducted by facility personnel, a quality assurance program that addresses these steps must be developed by each facility. The key steps in developing such a...

Stress is defined as any soil and climatic conditions or combination of both that hinders the full realization of genetic potential of a plant, limiting their growth, development and reproduction. These effects in plants of agricultural interest have a major impact on productivity and quality and thus represent, together with biotic stress, the cause of the gap between yield potential and actua...

Heavy-quark effective theory (HQET) is applied to lattice QCD with Wilson fermions at fixed lattice spacing a. This description is possible because heavy-quark symmetries are respected. It is desirable because the ultraviolet cutoff 1/a in current numerical work and the heavy-quark mass mQ are comparable. Effects of both short distances a and 1/mQ are captured fully into coefficient functions, ...

The relation between common rheumatic diseases such as osteoarthrosis, arthralgia without definite signs of osteoarthrosis, subacromial shoulder pain, different forms of tendinitis, low back pain and neck pain, and the level of formal education, occupational workload and some lifestyle factors were examined in 502 of 900 randomly selected subjects aged 50-70 years. The group with rheumatic comp...

PURPOSE Collecting waste is regarded as a benchmark for "particularly heavy" work. This study aims to determine and compare the workload of refuse workers in the field. We examined heart rate (HR) and oxygen uptake as parameters of workload during their daily work. METHODS Sixty-five refuse collectors from three task-specific groups (residual and organic waste collection, and street sweeping)...

BACKGROUND The purpose of this study was to quantify the impact of estradiol-valerate/dienogest (E(2)V/DNG; Qlaira(®)/Natazia(®)) on work productivity and activities of daily living in European and Australian women with heavy menstrual bleeding. METHODS Women aged 18-54 years with a confirmed diagnosis of heavy menstrual bleeding and no recognizable pathology were recruited across nine Europe...

To investigate the long term effect of heavy construction work on the back the occurrence of postures, lifting, carrying, and accidents in concrete reinforcement work and in maintenance house painting were measured. The 32 620 observations covering 272 work hours showed that reinforcement work necessitated stooped postures and heavy lifting more often than did painting. Reported minor back acci...

The chiral and heavy quark symmetries of QCD are reviewed. These symmetries are used to predict some low–momentum properties of hadrons containing a single heavy quark. ⋆ Work supported in part by the U.S. Dept. of Energy under Grant no. DE-FG03-92-ER 40701.

An introduction to the heavy quark effective theory and its symmetries is given. Some implications of the heavy quark spin and flavor symmetries are discussed. Recent results on fragmentation to quarkonium states are reviewed. ⋆ Work supported in part by the U.S. Dept. of Energy under Grant no. DE-FG03-92-ER 40701.