Results 91 to 100 of about 957 (196)

Molecular basis for the reproductive division of labour in a lower termite

open access: yesBMC Genomics, 2007
Background Polyphenism, the expression of different phenotypes with the same genetic background, is well known for social insects. The substantial physiological and morphological differences among the castes generally are the result of differential gene ...
Rehli Michael, Weil Tobias, Korb Judith
doaj   +1 more source

Integrated risk governance of a termite urban pest, challenges in risk communication: mediating conflicts in a public decision process [PDF]

open access: yes, 2011
2º CES "Critical Economics" Summer School: Environmental Values and Public Policies. Lousã, Portugal, 12th-15th July 2011."Nowadays termites are among the urban pests that cause more damage worldwide (Borges& Myles, 2007) it’s aggressiveness is ...
Arroz, Ana Margarida Moura   +3 more
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Less Trust Means More Trusts [PDF]

open access: yes, 2019
The word “trust” has multiple meanings. In everyday speech, it refers to a feeling of confidence associated with integrity, such as trusting that a friend will keep a secret. In the financial context, some law students, lawyers and lucky individuals also
Crawford, Bridget J.
core   +2 more sources

Subterranean termites (2004) [PDF]

open access: yes, 2004
There are approximately 2,500 species of termites worldwide. Most are found in tropical areas, while relatively few live in colder climates. Only about 45 species are found in the United States, and most of these are located in southern states.
Houseman, Richard M.
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Evaluation of wood preservatives against the drywood termite, Incisitermes minor (Hagen)

open access: yesWood Preservation, 2010
日本農林規格および優良木質建材等認証に記載されている既存の木材保存剤のアメリカカンザイシロアリに対する有効性を確認した。日本には現在, 木材保存剤のアメリカカンザイシロアリに対する防蟻性能の評価に関する公的な試験方法がない。そこで, アメリカカンザイシロアリ擬職蟻を供試虫として, JIS K 1571(2004)の室内試験の注入処理用試験法に準じて, 各種木材保存剤で注入処理したスギ辺材を強制摂食させることにより, 本種の生態を考慮した防蟻性能評価方法について検討した。26℃, 湿度75%の条件下でビーカー内に擬職蟻20頭を投入して, 6週間無処理スギ辺材を強制摂食させることで, 平均質量減少率がJIS K 1571の試験の有効性の基準である15%以上を満足することが認められた ...
Wakako OHMURA   +2 more
openaire   +2 more sources

Influência da idade na resistência natural da madeira de Eucalyptus grandis W. Hill ex. Maiden ao ataque de cupim de madeira seca (Cryptotermes brevis) Tree age influence on Eucalyptus grandis wood natural resistance to deterioration by dry-wood termites

open access: yesRevista Árvore, 2004
Este trabalho objetivou testar a resistência natural da madeira de Eucalyptus grandis de quatro diferentes idades (10, 14, 20 e 25 anos) ao ataque de cupins de madeira seca.
José de Castro Silva   +2 more
doaj   +1 more source

Polymethylmethacrylate and polydimethylsiloxane coatings with nano TiO2 and ZnO: Surface property and resistance against drywood termite

open access: yesResults in Surfaces and Interfaces
The surface characteristics and termite resistance of polymethylmethacrylate (PMMA) and polydimethylsiloxane (PDMS) wood coatings combined with nano metallic oxide particles of TiO2 and ZnO was investigated against the drywood termite Cryptotermes ...
Lyka Mae C. Urriza   +2 more
doaj   +1 more source

Wood consumption and pellet production by Azorean Kalotermitidae: Kalotermes flavicollis and Cryptotermes brevis [PDF]

open access: yes, 2007
Existem nos Açores duas espécies de térmitas da família Kalotermitidae: a Kalotermes flavicollis é uma térmita de madeira verde e é uma praga urbana menor.
Borges, Annabella   +4 more
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