منابع مشابه
Dunking behaviour in Carib grackles
Dunking behaviour, the dipping of food in water, has been anecdotally observed in more than 25 species of birds in the wild, but its function and ecology have not been systematically studied. In experiments conducted in the field and in captivity on Carib grackles, Quiscalus lugubris, in Barbados, we showed that: (1) dunking rate in the field was influenced by food type and that moistening dry ...
متن کاملStalling Live Migrations on the Cloud
Live migration is commonly employed by cloud providers for performance reasons (e.g., ensuring load balancing). Recently, migration has been considered as a countermeasure against cloud-based side-channel attacks. In this paper, we discover an attack using which an adversary can effectively stall a live migration; this can not only hurt performance but also hurt the usage of virtual machine (VM...
متن کاملStep-by-Step Migrations
This paper considers a dynamic model of industry location in which there is a tension between two forces. First, there is the agglomerating force of preference of intermediate input variety that tends to keep an industry at its original location. Second, other location factors matter and these tend to pull the industry in the direction of a new location. A crucial aspect of the model is that th...
متن کاملStealing of dunked food in Carib grackles (Quiscalus lugubris).
The use of tool or tool-like food processing behaviours can render animals vulnerable to theft (kleptoparasitism) because (1) large, nutritious items are usually involved, (2) value is added to the food due to long and/or complex handling, and (3) physical control of items is often temporarily lost during handling. In Barbados, Carib grackles (Quiscalus lugubris) immersing items in water before...
متن کاملGuiding neuronal cell migrations.
Neuronal migration is, along with axon guidance, one of the fundamental mechanisms underlying the wiring of the brain. As other organs, the nervous system has acquired the ability to grow both in size and complexity by using migration as a strategy to position cell types from different origins into specific coordinates, allowing for the generation of brain circuitries. Guidance of migrating neu...
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ژورنال
عنوان ژورنال: Science
سال: 1893
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.ns-22.569.361-b