Results 41 to 50 of about 245,556 (188)

Egg rejection based on egg size recognition as a specific strategy against parasitic cuckoos

open access: yesCurrent Zoology, 2022
Abstract In the coevolutionary interactions between avian brood parasites and their hosts, egg recognition based on color and/or pattern is a common and effective defense to counter parasitism. However, for egg recognition based on size, only a few studies have found affirmative results, and they do not provide unambiguous evidence that ...
Ping Ye   +6 more
openaire   +2 more sources

Scrambled Eggs: Apoptotic cell clearance by non-professional phagocytes in the Drosophila ovary [PDF]

open access: yes, 2017
This manuscript was supported by NIH grant R01 GM060574 to KM.
McCall, Kimberly, Serizier, Sandy B.
core   +1 more source

The lady vanishes: what's missing from the stem cell debate [PDF]

open access: yes, 2006
Most opponents of somatic cell nuclear transfer and embryonic stem cell technologies base their arguments on the twin assertions that the embryo is either a human being or a potential human being, and that it is wrong to destroy a human being or ...
A. Fagot-Largeault   +50 more
core   +2 more sources

Learning from a plan-based interface [PDF]

open access: yes, 1988
The use of plan recognition in the user interface is presented as a basis for a learning environment within which students can assimilate the range of possible actions and objectives afforded by a target application.
Weir, George
core   +1 more source

Sex roles in egg recognition and egg polymorphism in avian brood parasitism [PDF]

open access: yesBehavioral Ecology, 2011
Avian brood parasites impose strong selection on their hosts leading to the evolution of antiparasite defenses like egg recognition and rejection. Discordance and template-based cognitive mechanisms may form the base for egg recognition by hosts.
Wei Liang   +9 more
openaire   +3 more sources

Female Zebra Finches Smell Their Eggs.

open access: yesPLoS ONE, 2016
Parental investment in unrelated offspring seems maladaptive from an evolutionary perspective, due to the costs of energy and resources that cannot be invested in related offspring at the same time.
Sarah Golüke   +3 more
doaj   +1 more source

Structural and biochemical characterization of a new type of lectin isolated from carp eggs. [PDF]

open access: yes, 2003
A previously unidentified glycoprotein present in the eggs of the carp (Cyprinus carpio) was isolated and structurally characterized. The protein binds to a Sepharose 4B matrix and can be eluted with 0.4 M N-acetylglucosamine. The protein has an apparent
AMORESANO, ANGELA   +9 more
core   +1 more source

Effect of parasite egg size and quantity contrast of parasite-host eggs on recognition and rejection mode of Green-backed Tits

open access: yesAvian Research
In the co-evolutionary system of avian brood parasitism, egg recognition and rejection are common and generally act as effective anti-parasitic adaptations by hosts.
Xu Zhao   +3 more
doaj   +1 more source

Fusion of Sendai virus with the target cell membrane is required for T cell cytotoxicity [PDF]

open access: yes, 1978
INFECTION of mice with viruses can generate cytotoxic T lymphocytes (CTL) which show restricted specificity for target cell lysis. Specific lysis requires that the virus used to prime the target cells must be of the same type as that used to sensitise ...
A Munro   +12 more
core   +1 more source

Deep Learning Approach for Ascaris lumbricoides Parasite Egg Classification

open access: yesJournal of Parasitology Research, 2021
A. lumbricoides infection affects up to 1/3 of the world population (approximately 1.4 billion people worldwide). It has been estimated that 1.5 billion cases of infection globally and 65,000 deaths occur due to A. lumbricoides.
Narut Butploy   +2 more
doaj   +1 more source

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