The objective was to evaluate the survival of Mycobacterium paratuberculosis (Map) in naturally infected dairy cows feces under long periods of freezing at -18°C and -70°C. Samples were collected from cows previously tested positive with serum ELISA or fecal culture, or with clinical signs of Johne's disease. Samples were stored at -18°C and/or -70°C and recultured in Herrold's egg yolk media e...

Occupations requiring frequent periods of static lumbar flexion are known epidemiologically to be risk factors for the development of cumulative low back disorder. The impact of the load magnitude sustained during a series of short static lumbar flexions followed by an equally long rest period on the development of a cumulative low back disorder was addressed in an in vivo feline model. Static ...

1 The aim of the present study was to investigate the effects of motivating and 2 oudeterous (neither motivating nor demotivating) synchronous music on 400-metre 3 sprint performance while controlling for the potential confound of pre-performance 4 mood. A panel of volunteer Caucasian males (n = 20; mean age = 20.5, s = 1.2 years) 5 rated the motivational qualities of 32 musical selections usin...

Allostatic load is the "wear and tear" of the body resulting from the repeated activation of compensatory physiological mechanisms in response to chronic stress. Allostatic load can significantly affect the aging process and result in reduced longevity, accelerated aging, and impaired health. Although low socioeconomic status is associated with high allostatic load during aging, the effects of ...

Purpose: As many older people fall during dual tasks, we aimed to examine the effect of different cognitive loads on learning gait stability in younger and older adults. Methods: 10 younger (Mean±SD age: 25.91±3.42 years) and 10 older adults (Mean±SD: 66.65±4.28 years) were healthy volunteers without a history of falls. They were asked to do three tasks on a treadmill with cognitive load (none...

The unbound granule material (UGM) is widely applied as the base/subbase layer in pavement engineering. poor quality of UGMs mainly result differential settlement and fatigue failure UGMs. This paper presents a laboratory investigation on influence maximum particle size (MPS) aggregates resilient modulus (MR) repeated load triaxial tests were performed under different stress levels. Three nonli...