Results 91 to 100 of about 156,407 (190)

ONTOGENY AND REGULATION OF THE PAIR BOND: CONTEXTUAL FACTORS AND MOLECULAR MECHANISMS MODULATING BOND PLASTICITY IN THE PRAIRIE VOLE (MICROTUS OCHROGASTER)

open access: yes
297 pagesFor group living species, social bonds serve to regulate many of life’s challenges, including gaining access to and defending resources (e.g., shelter and mating partners).
Forero, Santiago
core   +1 more source

Ability of a coupled electron pair approximation to treat single bond breakings

open access: yes, 2010
International audienceThe self-consistent size-consistent CI ((SC)2CI), which considers all exclusion principle violating (EPV) diagrams, is able to treat single bond breakings, despite its single-reference character.
Ma, Jing   +2 more
core   +1 more source

THE EFFECTS OF PAIR BOND STRENGTH ON REPRODUCTIVE SUCCESS IN NORTH AMERICAN BARN SWALLOWS (HIRUNDO RUSTICA ERYTHROGASTER)

open access: yes
Many species of animals, particularly birds, provide parental care as offspring grow and develop. Bi-parental care, wherein both parents contribute to care, increases the quality of care while partially offsetting physical costs.
Murdoch, Grace
core   +1 more source

On bond-additive and atoms-pair-additive indices of graphs [PDF]

open access: yesElectronic Journal of Mathematics, 2021
Tamas Reti, Akbar Ali, Ivan Gutman
doaj   +1 more source

Influence of lone-pair electrons of cations on bond-valence parameters

open access: yes, 1996
According to the current bond-valence concept, the valence Vi of an atom A i is a function of the distances Dij to its neighbors X j and

core   +1 more source

摆动导杆机构键合图建模新方法

open access: yesJixie chuandong, 2011
The bond graph modeling of swing guide-bar mechanism is researched.An integrated modeling method based on the combination of virtual work principle and bond graph is put forward.Firstly,the centroid movement rule of each bar and the bond graph model of ...
何雅槐, 唐进元, 陈海锋
doaj  

Causes and consequences of pair-bond disruption in socially monogamous species

open access: yes
Many animals, from crustaceans to humans, form socially monogamous pair-bonds which are maintained during one or more consecutive breeding seasons. However, the ecological consequences of the disruption of monogamous pair-bond have rarely been addressed ...
Sun, Ruijiao
core  

Downy woodpecker pair bond maintenance in winter: Proximate and ultimate mechanisms

open access: yes, 2003
In most birds, the pair bond relationship during the reproductive period is ubiquitous and often necessary for reproductive success. However, trade-offs between the costs and benefits of pair bond maintenance (PBM) make this relationship more variable in
Kellam, James Scott
core  

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