Results 11 to 20 of about 3,641,137 (298)

Conservation of Defensive Military Structures Built with Rammed Earth [PDF]

open access: yesBuildings
Earth is a complex material with mechanical and physical behaviors that differ from modern building materials. The conservation of rammed-earth (RE) constructions presents specific difficulties that are challenging to overcome.
Miguel Rocha   +2 more
doaj   +2 more sources

Permanent Defensive Structures of Khingan Tunnel: Design and Construction [PDF]

open access: yesНаучный диалог
This study explores the history of the fortification defense system of the Khingan Tunnel on the Chinese Eastern Railway during the years 1914–1918. The relevance of this research is underscored by the lack of specialized works addressing the history of ...
R. S. Avilov
doaj   +2 more sources

Defensive Reactions to Threatening Health Messages: Alternative Structures and Next Questions

open access: yesInternational Journal of Communication, 2018
Defensive reactions offer an explanation for why people reject persuasive messages. Surprisingly, little research has focused on the basic question of how they are structured with regard to one another.
James Price Dillard   +2 more
doaj   +2 more sources

Types of Medieval Wooden and Earth Defensive Structures and Methods of their Constuction

open access: yesПоволжская археология, 2018
The paper considers the primary types of defensive structures built in the Middle Ages from wood and earth, as well as the methods used for their construction.
Gubaidullin Airat M.
doaj   +2 more sources

Structural Aspects of Defense [PDF]

open access: yes, 2000
Plants can defend themselves very efficiently against phytopathogens. This resistance can be based on preformed resistance factors or it may be the result of infection-induced resistance reactions. Preformed and induced resistance mechanisms can be structural or chemical in nature.
Moerschbacher, Bruno, Mendgen, Kurt
openaire   +2 more sources

Structured instruments for insanity defense evaluations: Opportunities and limitations

open access: yesBehavioral Sciences & the Law, 2023
AbstractInsanity evaluations are often criticized for their—alleged—lack of objectivity, reliability and transparency. Structured tools to guide and support forensic evaluators during these evaluations have been developed—but they are rarely employed in forensic practice.
Parmigiani Giovanna   +3 more
openaire   +7 more sources

THE ECOLOGY OF ASYMMETRY IN STICKLEBACK DEFENSE STRUCTURES [PDF]

open access: yesEvolution, 2009
Slight departures from bilateral symmetry are usually associated with reduced fitness. Here we show that an insular freshwater population of Gasterosteus aculeatus exhibits spatial and temporal segregation according to the incidence and direction of asymmetry in the number of bony lateral plates, which are important predator-defense structures.
Thomas E, Reimchen, Carolyn A, Bergstrom
openaire   +2 more sources

Selection for altruistic defense in structured populations [PDF]

open access: yesTheoretical Population Biology, 2019
Abstract We model natural selection for or against an anti-parasite (or anti-predator) defense allele in a host (or prey) population that is structured into many demes. The defense behavior has a fitness cost for the actor compared to non defenders (“cheaters”) in the same deme and locally reduces parasite growth rates.
Felix Jordan   +2 more
openaire   +3 more sources

Reuse of urban defensive heritage in Algeria [PDF]

open access: yes, 2020
[EN] The growing interest in the heritage that contemporary society carries with it, and which is reflected in the extent of the debates and issues relating to its preservation and enhancement, runs up, most of the time, to the authentic memory ...
Nicolas Faucherre   +5 more
core   +1 more source

Defensive structures influence fighting outcomes

open access: yes, 2020
In many animal species, individuals engage in fights with conspecifics over access to limited resources (e.g. mates, food, or shelter). Most theory about these intraspecific fights assumes that damage has an important role in determining the contest ...
Emberts, Zachary   +4 more
core   +1 more source

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