Results 81 to 90 of about 133,767 (283)

Trapline foraging by bumble bees: VII. Adjustments for foraging success following competitor removal [PDF]

open access: yesBehavioral Ecology, 2012
Animals collecting food from renewable resource patches scattered in space often establish small foraging areas to which they return faithfully. Such area fidelity offers foraging advantages through selection of profitable patches, route minimization, and regular circuit visits to these patches (“trapline foraging”).
Kazuharu Ohashi   +2 more
openaire   +2 more sources

Gram‐Scale Synthesis of Hafnium‐Rich Carbon Dots for Preclinical Computed Tomography Imaging Across Various Systems

open access: yesAdvanced Science, EarlyView.
Hafnium (Hf)‐rich carbon dots (Hf‐rCDs) with high metal content (40.7%) and robust batch production capacity (>2 g per batch) are synthesized via a facile air‐assisted pyrolysis method. In vivo CT imaging demonstrates outstanding performance of Hf‐rCDs across multiple physiological systems and enables high‐resolution visualization of swine cervical ...
Shuo Li   +11 more
wiley   +1 more source

New data from the historical bee collection (Hymenoptera, Anthophila) of the Science Museum of the University of Coimbra and additional faunistic updates for Portugal [PDF]

open access: yesJournal of Hymenoptera Research
Entomological collections hold significant scientific potential, especially understudied taxa of historical collections from important biogeographical regions, such as bees in Portugal. The Science Museum of the University of Coimbra (MCUC)
Hugo Gaspar   +6 more
doaj   +3 more sources

Cap removal by honey bees leads to higher pollen rewards from grapevine flowers [PDF]

open access: yesApidologie, 2015
Pollen of wind-pollinated plants such as grapevine rapidly dries out and is blown away after the anthers dehisce. Therefore, from the point of view of a pollen-collecting bee, pollen from wind-pollinated flowers is best collected soon after it becomes exposed. In grapevine, pollen becomes available immediately after the calyptra is shed, a process also
Hogendoorn, K.   +2 more
openaire   +2 more sources

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

The restoration of ecological interactions: plant-pollinator networks on ancient and restored heathlands [PDF]

open access: yes, 2008
1. Attempts to restore damaged ecosystems usually emphasize structural aspects of biodiversity, such as species richness and abundance. An alternative is to emphasize functional aspects, such as patterns of interaction between species.
Anonymous   +46 more
core   +2 more sources

Clinically Informed Intelligent Classification of Ovarian Cancer Cells by Label‐Free Holographic Imaging Flow Cytometry

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Quantitative phase maps of single cells recorded in flow cytometry modality feed a hierarchical architecture of machine learning models for the label‐free identification of subtypes of ovarian cancer. The employment of a priori clinical information improves the classification performance, thus emulating the clinical application of liquid biopsy during ...
Daniele Pirone   +11 more
wiley   +1 more source

Comparison of Hygienic Behavior of Exotic Honey Bee Apis mellifera L. and Indigenous Honey Bee Apis cerana of Pakistan

open access: yesSociobiology, 2020
Indigenous and exotic honey bee species were evaluated for their hygienic behavior in the climatic condition of Peshawar Khyber Pakhtunkhwa, Pakistan.
Muhammad Shakeel   +2 more
doaj   +1 more source

Review of the methods to determine the hazard and toxicity of pesticides to bumblebees [PDF]

open access: yes, 2001
Methods to determine the impact of pesticides on bumblebees are described. They are classified into laboratory tests to determine the acute toxicity and the hazard to bumblebees, (semi) field tests, and brood tests.
Steen, J.J.M., van der
core   +5 more sources

BeeRootBot: A Bioinspired Robotic Probe Exhibiting Apical Growth through In Situ Soil Binding

open access: yesAdvanced Intelligent Systems, EarlyView.
This study introduces a novel method for consolidating subterranean exploration pathways in plant‐inspired robots by binding in‐situ soil with beeswax, a biobased material. This simultaneous advancement and wall‐lining process reduces penetration resistance, enhances exploration efficiency, enables communication and resource sharing, and promotes ...
Sachin Sachin   +4 more
wiley   +1 more source

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