Results 51 to 60 of about 58,443 (279)

Bio‐Based Wax Interfaces for Droplet Energy Harvesting at Fluoropolymer‐Like Output Levels

open access: yesAdvanced Science, EarlyView.
Replacing unsustainable fluorinated polymers in droplet‐based energy harvesters is usually limited by low power outputs, but carefully selected bio‐based polymers are capable of creating fluoropolymer‐like voltage outputs. Abstract Droplet impact and rebound on solid surfaces has emerged as a promising method for energy harvesting, typically ...
Behnam Kamare   +4 more
wiley   +1 more source

The Honey Bee Colony’s Criterion for Candidate Selection: “Ongoing” or “One-Shot”?

open access: yesAnimals
In the honey bee, the queen’s death severely threatens the survival of the colony. In an emergency, new queens are reared from young worker larvae, where nepotism is thought to influence the choice of queen candidates by the workers.
Luxia Pan   +4 more
doaj   +1 more source

Effect of honeybee venom and Egyptian propolis on the honeybee (Apis mellifera L.) health in vivo

open access: yesEgyptian Journal of Biological Pest Control, 2022
Background Honeybees are one of the most important pollinators in the world, and their products are nowadays included in most anticancer, antiallergic, antimicrobial drugs and are included in cosmetic treatments.
Heba Seyam   +5 more
doaj   +1 more source

Combined stress from parasites, pesticides and lack of flowers drives bee declines [PDF]

open access: yes, 2015
Bees are subject to numerous pressures in the modern world. The abundance and diversity of flowers has declined, bees are chronically exposed to cocktails of agrochemicals, and they are simultaneously exposed to novel parasites accidentally spread by ...
Botias Talamantes, Cristina   +3 more
core   +1 more source

Can outsourcing pest and disease control help reduce pesticide expenditure? Evidence from rice farmers

open access: yesAgribusiness, EarlyView.
Abstract Outsourcing pest and disease control (PDC) has grown rapidly worldwide, especially in developing countries. Although numerous studies have investigated various advantages of outsourcing PDC, little is known about its impact on pesticide expenditure.
Pengcheng Wang   +2 more
wiley   +1 more source

Enhancing antioxidant activity and quality of Triadica cochinchinensis honey via an automated temperature-humidity controlled cabinet

open access: yesFrontiers in Nutrition
Honey, a key beekeeping product, is rich in antioxidants and bioactive compounds, offering antimicrobial, anti-inflammatory and health-promoting properties. The water content of honey is directly correlated with its quality.
Huizhi Jiang   +13 more
doaj   +1 more source

Phylogenetic Analysis of Small Hive Beetles From Native to Introduced Populations

open access: yesFrontiers in Genetics, 2022
The small hive beetle (SHB), a social parasite of beehives, is native to sub-Saharan Africa and has spread to America, Europe, and Australia. Recently, these beetles invaded China, causing widespread colony collapses in the honeybee, Apis cerana. In this
Wen Feng Bai   +7 more
doaj   +1 more source

Measurement of the threshold sensitivity of honeybees to weak, extremely low-frequency magnetic fields [PDF]

open access: yes, 1997
Experiments reported previously demonstrate that free-flying honeybees are able to detect static intensity fluctuations as weak as 26 nT against the background, earth-strength magnetic field.
Boyce, C. K.   +3 more
core  

Dimorphic enantiostyly and its function for pollination by carpenter bees in a pollen‐rewarding Caribbean bloodwort

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Flowers that present their anthers and stigma in close proximity can achieve precise animal‐mediated pollen transfer, but risk self‐pollination. One evolutionary solution is reciprocal herkogamy. Reciprocity of anther and style positions among different plants (i.e., a genetic dimorphism) is common in distylous plants, but very rare in
Steven D. Johnson   +5 more
wiley   +1 more source

The Spring Assessment of Nosema Spp. Infection in Honey Bee Colonies (Apis mellifera L.) - Sampling as an Important Aspect of a Reliable Diagnosis

open access: yesJournal of Apicultural Science, 2018
The objective of the research was a comparative assessment of the infection levels of Nosema spp. in honey bees collected from different areas of the hive.
Pohorecka Krystyna   +3 more
doaj   +1 more source

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