Declines in honeybee (Apis mellifera ) colonies have elicited great concern worldwide.Recently, many Japanese beekeepers have implied that midsummer use of a new insecticide, neonicotinoid, in rice fields, is causing widespread mortality of neighboring honeybees and frequently resulting in colony collapse.Since few field experiments have directly t
BackgroundPhysical activity and exercise are important aspects of maintaining health.People with mobility impairments, including survivors of stroke, are less likely to exercise and at greater risk of developing or worsening chronic health conditions.Increasing accessible, desired options for exercise may address the gap in available physical activ
Chinese Red Steppe Cattle (CRS), a composite cattle breed, is well known for its milk production, high slaughter rate, carcass traits, and meat quality.Nowadays, it is widely bred in Jilin and Hebei Province and the Inner Mongolia Autonomous region.However, the population structure and the genetic basis of prominent characteristics of CRS are still
In response to the insufficient study on landslide surges in narrow river channels near the dam area, based on the Baoxing power station, this paper uses the FLOW-3D numerical analysis method to analyze the propagation characteristics, disaster characteristics, and hazard of surges in the near dam area on different landslide scales.The results show
The vibration characteristics of a bladed disk KAVA KAVA with the continuous ring type structure have been studied extensively, and the vibration response analyses considering the friction damping between adjacent shrouds have been performed in the recent blade design.The effect of the friction damping on the self-excited vibration also has been st