Honeybees (Apis mellifera) are important pollinators of flowering plants and agricultural crops contributing annually to billions of dollars in revenues to crop production. Honeybees have an average lifespan between 8...Honeybees (Apis mellifera) are important pollinators of flowering plants and agricultural crops contributing annually to billions of dollars in revenues to crop production. Honeybees have an average lifespan between 8 weeks to 5 years. Dead honeybees are abundantly available in beehives and can be utilized as an alternative source to synthesize nanoparticles. In recent years, biologically synthesized nanoparticles have been preferred over their chemical counterparts. However, honeybee-based-green synthesis of nanoparticles has not been explored yet. Herein, we report the biosynthesis of silver nanoparticles from honeybees and its antibacterial activity. The synthesis of silver nanoparticles was monitored visually through a gradual change in color. Furthermore, the biosynthesized nanoparticles were confirmed and characterized by UV-visible spectroscopy. Scanning Electron Microscope was utilized to analyze the average size and morphologies of the biosynthesized nanoparticles. Subsequently, the antibacterial potential of the biosynthesized silver nanoparticles was tested against selected Gram-positive and Gram-negative bacterial strains. It was found that a distinct color change from yellow to brown in the reaction solution suggested the formation of silver nanoparticles. The biosynthesized nanoparticles exhibited absorption maxima at 430 nm. The SEM analysis confirmed the spherical and cuboidal shape of the biosynthesized silver nanoparticles with a size range between 10 - 40 nm. Furthermore, the biosynthesized silver nanoparticles exhibited strong antimicrobial potential against tested Gram-positive and Gram-negative bacteria strains by aggregating on the cell surface. This study showcases the biomedical and agricultural applications of biosynthesized silver nanoparticles from honeybee wings. .展开更多
The chemical composition of each of the eight total products of beekeeping, which are honey, bee venom, propolis, royal jelly, drone brood, bee pollen, bee bread and beeswax, is analyzed. Each beekeeping product has i...The chemical composition of each of the eight total products of beekeeping, which are honey, bee venom, propolis, royal jelly, drone brood, bee pollen, bee bread and beeswax, is analyzed. Each beekeeping product has its own chemical composition which varies from producer to producer. Some of these bee products have been used for centuries in traditional medicine, but to date research has demonstrated many other medicinal properties of these products that were not known. Therapeutic properties of bee products have been discovered even against various types of cancer and scientists are continuing their research to discover other secrets behind the therapeutic properties of bee products. In addition, therapeutic effects of bee products have also been discovered against COVID-19 disease which has significantly affected global health. Finally, it is concluded that bee products are proven to be one of the most valuable medicines that nature can offer showing the great value of the science of beekeeping.展开更多
[Objectives]To improve the yield and quality of different pear varieties by supplementary pollination.[Methods]The effects of bee pollination were compared with other pollination methods,and the effects of different f...[Objectives]To improve the yield and quality of different pear varieties by supplementary pollination.[Methods]The effects of bee pollination were compared with other pollination methods,and the effects of different factors on honeybee pollination were studied through experiments.[Results]Honeybee pollination significantly increased the number of fruit per inflorescence.In addition,it could improve the single fruit weight,fruit shape and other quality indicators of fruit.The pollination effect of honeybee was the best in all supplementary pollination measures.Honeybee pollination had good fruit setting effect on different pear varieties,but there were some differences in the effect of quality improvement.Spraying lime sulfur mixture and other measures could significantly affect the effects of honeybee pollination.[Conclusions]The research results prove the effectiveness of honeybee pollination technology in Hebei Province,and provide a certain reference for the establishment of a simple and practical artificial assisted pollination technology system.展开更多
The Gando Primary School project faces several challenges like extreme environmental constraints,resource scarcity,and design requirements.These challenges include the hot climate of Burkina Faso,economic underdevelop...The Gando Primary School project faces several challenges like extreme environmental constraints,resource scarcity,and design requirements.These challenges include the hot climate of Burkina Faso,economic underdevelopment,building material scarcity,and lack of electrical resources.To implement an architectural design for the classrooms that accommodates these difficulties,especially in the absence of an electrical system,architect Francis Kéréemployed various passive design strategies that can provide shelter from the rain and heat while achieving essential lighting levels and ventilation.This paper used Gando Primary School as the research object and utilized the parametric tools of Ladybug+Honeybee(L+H)to conduct numerical simulations and evaluations of the building’s daylighting,glare analysis,and indoor thermal comfort.The aim of this study is to investigate the application of passive design strategies in energy conservation under extreme environmental conditions,propose a parametric energy-saving evaluation strategy with L+H,and explore energy-saving design ideas in economically underdeveloped Third World countries.展开更多
文摘Honeybees (Apis mellifera) are important pollinators of flowering plants and agricultural crops contributing annually to billions of dollars in revenues to crop production. Honeybees have an average lifespan between 8 weeks to 5 years. Dead honeybees are abundantly available in beehives and can be utilized as an alternative source to synthesize nanoparticles. In recent years, biologically synthesized nanoparticles have been preferred over their chemical counterparts. However, honeybee-based-green synthesis of nanoparticles has not been explored yet. Herein, we report the biosynthesis of silver nanoparticles from honeybees and its antibacterial activity. The synthesis of silver nanoparticles was monitored visually through a gradual change in color. Furthermore, the biosynthesized nanoparticles were confirmed and characterized by UV-visible spectroscopy. Scanning Electron Microscope was utilized to analyze the average size and morphologies of the biosynthesized nanoparticles. Subsequently, the antibacterial potential of the biosynthesized silver nanoparticles was tested against selected Gram-positive and Gram-negative bacterial strains. It was found that a distinct color change from yellow to brown in the reaction solution suggested the formation of silver nanoparticles. The biosynthesized nanoparticles exhibited absorption maxima at 430 nm. The SEM analysis confirmed the spherical and cuboidal shape of the biosynthesized silver nanoparticles with a size range between 10 - 40 nm. Furthermore, the biosynthesized silver nanoparticles exhibited strong antimicrobial potential against tested Gram-positive and Gram-negative bacteria strains by aggregating on the cell surface. This study showcases the biomedical and agricultural applications of biosynthesized silver nanoparticles from honeybee wings. .
文摘The chemical composition of each of the eight total products of beekeeping, which are honey, bee venom, propolis, royal jelly, drone brood, bee pollen, bee bread and beeswax, is analyzed. Each beekeeping product has its own chemical composition which varies from producer to producer. Some of these bee products have been used for centuries in traditional medicine, but to date research has demonstrated many other medicinal properties of these products that were not known. Therapeutic properties of bee products have been discovered even against various types of cancer and scientists are continuing their research to discover other secrets behind the therapeutic properties of bee products. In addition, therapeutic effects of bee products have also been discovered against COVID-19 disease which has significantly affected global health. Finally, it is concluded that bee products are proven to be one of the most valuable medicines that nature can offer showing the great value of the science of beekeeping.
基金Supported by Special Fund Project for the Construction of National Modern Agricultural Industrial Technology System(CARS-28-28)Science and Technology Innovation Project of Hebei Academy of Agricultural and Forestry Sciences(2022KJCXZX-SGS-5)+1 种基金Hebei Modern Seed Industry Science and Technology Innovation Project(21326308D)Hebei Modern Agricultural Industrial Technology System(HBCT2021210201).
文摘[Objectives]To improve the yield and quality of different pear varieties by supplementary pollination.[Methods]The effects of bee pollination were compared with other pollination methods,and the effects of different factors on honeybee pollination were studied through experiments.[Results]Honeybee pollination significantly increased the number of fruit per inflorescence.In addition,it could improve the single fruit weight,fruit shape and other quality indicators of fruit.The pollination effect of honeybee was the best in all supplementary pollination measures.Honeybee pollination had good fruit setting effect on different pear varieties,but there were some differences in the effect of quality improvement.Spraying lime sulfur mixture and other measures could significantly affect the effects of honeybee pollination.[Conclusions]The research results prove the effectiveness of honeybee pollination technology in Hebei Province,and provide a certain reference for the establishment of a simple and practical artificial assisted pollination technology system.
文摘The Gando Primary School project faces several challenges like extreme environmental constraints,resource scarcity,and design requirements.These challenges include the hot climate of Burkina Faso,economic underdevelopment,building material scarcity,and lack of electrical resources.To implement an architectural design for the classrooms that accommodates these difficulties,especially in the absence of an electrical system,architect Francis Kéréemployed various passive design strategies that can provide shelter from the rain and heat while achieving essential lighting levels and ventilation.This paper used Gando Primary School as the research object and utilized the parametric tools of Ladybug+Honeybee(L+H)to conduct numerical simulations and evaluations of the building’s daylighting,glare analysis,and indoor thermal comfort.The aim of this study is to investigate the application of passive design strategies in energy conservation under extreme environmental conditions,propose a parametric energy-saving evaluation strategy with L+H,and explore energy-saving design ideas in economically underdeveloped Third World countries.
