Results 101 to 110 of about 3,106,667 (342)

Cytotoxic and apoptotic effectiveness of Cypriot honeybee (Apis mellifera cypria) venom on various cancer cells

open access: yesTürk Biyokimya Dergisi
The bee stinger is the defense organ of honeybees. The venom sac of a worker bee is connected to its stinger, which is used as a defense mechanism, and it has a potent and complex combination of substances that is unique in the animal kingdom.
Nalbantsoy Ayşe   +3 more
doaj   +1 more source

Appetite for self-destruction: suicidal biting as a nest defense strategy in Trigona stingless bees [PDF]

open access: yes, 2014
Self-sacrificial behavior represents an extreme and relatively uncommon form of altruism in worker insects. It can occur, however, when inclusive fitness benefits are high, such as when defending the nest.
Al Toufailia, Hasan   +5 more
core   +2 more sources

The colony environment modulates sleep in honey bee workers [PDF]

open access: yesJournal of Experimental Biology, 2014
Abstract One of the most important and evolutionarily conserved roles of sleep is the processing and consolidation of information acquired during wakefulness. In both insects and mammals, environmental and social stimuli can modify sleep physiology and behavior, yet relatively little is known about the specifics of the wake experiences ...
Ada, Eban-Rothschild, Guy, Bloch
openaire   +2 more sources

Tough and Temperature‐Resistant Material Based on Bombyx mori Silk Fibroin

open access: yesAdvanced Science, EarlyView.
We propose a biomimetic “Hydration‐Crystallization Locking” (HCL) strategy inspired by Bombyx mori spinning to enhance silk fibroin (SF) performance in extreme temperatures. A flexible fibroin membrane (FFM) shows high strength, toughness, and shape retention under −196°C and 70°C.
Meng Zhang   +8 more
wiley   +1 more source

How does invert sugar syrup affect sealed worker brood and colony strength in Roger-Delon hives

open access: yesЖивотновъдни науки
Honeybees are the most valuable pollinators for ecosystems. This study aimed to determine the effects of inverted sugar syrup on the sealed worker brood and colony strength in Roger-Delon hives.
Tsvetan Tsvetanov, Ralitsa Balkanska
doaj   +1 more source

The Modified Pharaoh Approach: Stingless bees mummify beetle parasites alive [PDF]

open access: yes, 2008
Social insect colonies usually live in nests, which are often invaded by parasitic species^1^. Workers from these colonies use different defence strategies to combat invaders^1^.
Anne Dollin   +6 more
core   +3 more sources

Queens and Workers Contribute Differently to Adaptive Evolution in Bumble Bees and Honey Bees [PDF]

open access: yesGenome Biology and Evolution, 2017
Eusociality represents a major transition in evolution and is typified by cooperative brood care and reproductive division of labor between generations. In bees, this division of labor allows queens and workers to phenotypically specialize. Worker traits associated with helping are thought to be crucial to the fitness of a eusocial lineage, and recent ...
Brock A. Harpur   +7 more
openaire   +2 more sources

Probing the DOS Band Tail in Amorphous Thin‐Film Transistors via Capacitance–Voltage Analysis

open access: yesAdvanced Electronic Materials, EarlyView.
A novel method is presented to quantify the band tail of amorphous semiconductors from capacitance–voltage measurements. The method is tested on Indium‐Gallium‐Zinc‐Oxide transistors of different dimensions. The comparison with alternative optical and electrical techniques demonstrates opportuneties of the method and possible shortcomings for very ...
Nikolas Franke   +8 more
wiley   +1 more source

Terpenoid-Induced Feeding Deterrence and Antennal Response of Honey Bees [PDF]

open access: yes, 2020
Multiple interacting stressors negatively affect the survival and productivity of managed honey bee colonies. Pesticides remain a primary concern for beekeepers, as even sublethal exposures can reduce bee immunocompetence, impair navigation, and reduce ...
Anderson, Troy D.   +4 more
core   +1 more source

Probing the Cause of Capacity Fade in Large‐Format Li‐Ion Pouch Cells through Multimodal Characterization

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
A comprehensive multimodal characterization of two end‐of‐life cells from a retired Nissan Leaf battery pack, subjected to accelerated aging to mimic extended use in second‐life applications shows that electrolyte degradation and loss is a more critical contributor to cell degradation toward the knee‐point in these cells than degradation of the ...
Emily C. Giles   +18 more
wiley   +1 more source

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