نتایج جستجو برای: volunteer plants

تعداد نتایج: 208641  

Journal: :The journals of gerontology. Series B, Psychological sciences and social sciences 2003
Nancy Morrow-Howell Jim Hinterlong Philip A Rozario Fengyan Tang

OBJECTIVES This study tests the effects of volunteering on the well-being of older adults, including the effect of level of engagement, the moderating effects of demographic and social factors, and the effects of the nature of the volunteer experience. METHODS This is a secondary data analysis of three waves of data from the Americans' Changing Lives Study. Self-rated health, functional depen...

Journal: :Plant Pathology 2021

Non-crop plants such as grasses and volunteer are an inseparable part of the flora crop fields can influence virus incidence in plants. The presence reservoirs lead to a higher probability However, role inoculum source agricultural has not been well studied for many viral diseases crops. Grasses have found constitute potential cereal-infecting viruses different parts world. This study revealed ...

Journal: :Kansas Agricultural Experiment Station Research Reports 2011

Journal: :Current Issues in Tourism 2021

Despite Volunteer Tourism (VT) being firmly rooted in sustainability, there is a lack of detailed understanding how the VT supply chain influences sustainability. Specifically, while recent analytical frameworks evaluating relations have detected power imbalances amongst main stakeholders, little known about and why different active components stakeholders’ influence Based on case study four st...

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