Older adults' participation in gambling is increasing internationally. Due to their lifestage, older adults may be vulnerable to gambling-related harm. When investigating older adults' gambling, researchers have mostly focused on the individual characteristics of ‘problem gamblers’. Less is known about the socio-cultural, environmental and commercial factors that may influence older adults' gambling behaviours. Utilising Social Practice Theory, this critical qualitative inquiry of N = 40 Australian older adults (aged 55 and over) explored how social practices influenced gambling participation. Using a Constructivist Grounded Theory approach, data were interpreted using a reflexive thematic analysis. Theme 1 identified how gambling practices fulfilled older adults' social needs. Gambling was embedded in social activities and created a sense of belonging. Theme 2 highlighted how gambling became an everyday part of some participants' lives, with a range of routines constructed around gambling. While social factors influenced routinised gambling behaviours, the accessibility of gambling products in everyday settings contributed to engagement with gambling. This study demonstrates that a range of social, environmental and commercial factors may influence and routinise the gambling practices of older adults. Interventions aimed at preventing and reducing routine gambling participation among older adults should acknowledge the interplay between agency and social structure. Public health responses should aim to disrupt routine behaviours associated with gambling for older adults.

Various chemical and mechanical weed control treatments for kidney bean production were evaluated on irrigated, sandy loam sites from 1993 to 1995 near Staples, MN. Weed biomass can be controlled either mechanically or chemically, but a combination of the two gave the most effective and dependable weed control over years. Good weed control by either mechanical or chemical means reduced white mold infection of dry bean because of better aeration of dry bean plants and thus less favorable conditions for infection. Dry bean seed yields were inversely related to weed yields, and weed competition was similar from indigenous stands of either grass or broadleaf weeds. Row cultivation was more effective than rotary hoeing for controlling weeds, reducing white mold infection of dry bean, and increasing dry bean seed yields.

The aim of this study was to examine cross-sectionally whether higher cardiorespiratory fitness (CRF) might favorably modify amyloid-β (Aβ)-related decrements in cognition in a cohort of late-middle-aged adults at risk for Alzheimer’s disease (AD). Sixty-nine enrollees in the Wisconsin Registry for Alzheimer’s Prevention participated in this study. They completed a comprehensive neuropsychological exam, underwent 11C Pittsburgh Compound B (PiB)-PET imaging, and performed a graded treadmill exercise test to volitional exhaustion. Peak oxygen consumption (VO2peak) during the exercise test was used as the index of CRF. Forty-five participants also underwent lumbar puncture for collection of cerebrospinal fluid (CSF) samples, from which Aβ42 was immunoassayed. Covariate-adjusted regression analyses were used to test whether the association between Aβ and cognition was modified by CRF. There were significant VO2peak*PiB-PET interactions for Immediate Memory (p=.041) and Verbal Learning & Memory (p=.025). There were also significant VO2peak*CSF Aβ42 interactions for Immediate Memory (p<.001) and Verbal Learning & Memory (p<.001). Specifically, in the context of high Aβ burden, that is, increased PiB-PET binding or reduced CSF Aβ42, individuals with higher CRF exhibited significantly better cognition compared with individuals with lower CRF. In a late-middle-aged, at-risk cohort, higher CRF is associated with a diminution of Aβ-related effects on cognition. These findings suggest that exercise might play an important role in the prevention of AD. (JINS, 2015, 21, 841–850)