Results 41 to 50 of about 137,387 (310)
Dora Biro introduces homing domestic pigeons specialized for messaging duties.
openaire +2 more sources
Reward context determines risky choice in pigeons and humans [PDF]
Whereas humans are risk averse for monetary gains, other animals can be risk seeking for food rewards, especially when faced with variable delays or under significant deprivation.
Ludvig, Elliot Andrew +3 more
core +3 more sources
BackgroundPigeons and doves (Columbiformes) are one of the oldest and most diverse extant lineages of birds. However, the nature and timing of the group’s evolutionary radiation remains poorly resolved, despite recent advances in DNA sequencing and ...
André E. R. Soares +10 more
semanticscholar +1 more source
Pigeons (Columba livia) as Trainable Observers of Pathology and Radiology Breast Cancer Images
Pathologists and radiologists spend years acquiring and refining their medically essential visual skills, so it is of considerable interest to understand how this process actually unfolds and what image features and properties are critical for accurate ...
R. Levenson +3 more
semanticscholar +1 more source
Space complexity in polynomial calculus [PDF]
During the last decade, an active line of research in proof complexity has been to study space complexity and time-space trade-offs for proofs. Besides being a natural complexity measure of intrinsic interest, space is also an important issue in SAT ...
Filmus, Yuval +4 more
core +2 more sources
Analyze the Chosen Production Criteria of Carrier Pigeons
The aim of this work was to analyze the chosen production criteria of carrier pigeons. We observed the weight of the squabs on the 28th day and their weight before the slaughtering. The slaughtering was carried out before and after the young pigeons left
Martin Fik +2 more
doaj
Altered orientation and flight paths of pigeons reared on gravity anomalies: a GPS tracking study. [PDF]
The mechanisms of pigeon homing are still not understood, in particular how they determine their position at unfamiliar locations. The "gravity vector" theory holds that pigeons memorize the gravity vector at their home loft and deduct home direction and
Nicole Blaser +4 more
doaj +1 more source
Functions of innate and acquired immune system are reduced in domestic pigeons (Columba livia domestica) given a low protein diet [PDF]
Racing pigeons are exposed to and act as carriers of diseases. Dietary protein requirement for their maintenance has not been determined experimentally despite their being domesticated for over 7000 years.
Yuko Mabuchi, Theresa L. Frankel
doaj +1 more source
Considering Pigeons for Carrying Delay Tolerant Networking based Internet traffic in Developing Countries [PDF]
There are many regions in the developing world that suffer from poor infrastructure and lack of connection to the Internet and Public Switched Telephone Networks (PSTN).
Brewer +15 more
core +2 more sources
In the summer of 2010 an epidemic of West Nile virus (WNV) occurred in Central Macedonia, Greece, with 197 human neuroinvasive disease (WNND) cases. In the following years the virus spread to new areas, with a total of 76 WNND cases in 2011, and 109 WNND
Serafeim C Chaintoutis +12 more
semanticscholar +1 more source

