Results 31 to 40 of about 361,344 (403)

Spider Diagrams: A Diagrammatic Reasoning System [PDF]

open access: yes, 2001
Spider diagrams combine and extend Venn diagrams and Euler circles to express constraints on sets and their relationships with other sets. These diagrams can be used in conjunction with object-oriented modelling notations such as the Unified Modeling ...
Gil, Joseph   +4 more
core   +2 more sources

Converging on the orb: denser taxon sampling elucidates spider phylogeny and new analytical methods support repeated evolution of the orb web

open access: yesCladistics, 2020
High throughput sequencing and phylogenomic analyses focusing on relationships among spiders have both reinforced and upturned long‐standing hypotheses. Likewise, the evolution of spider webs—perhaps their most emblematic attribute—is being understood in
R. Kallal   +6 more
semanticscholar   +1 more source

Second-order Nonlinear Optical Microscopy of Spider Silk [PDF]

open access: yes, 2017
Asymmetric $\rm \beta$-sheet protein structures in spider silk should induce nonlinear optical interaction such as second harmonic generation (SHG) which is experimentally observed for a radial line and dragline spider silk by using an imaging ...
Hien, Khuat Thi Thu   +3 more
core   +2 more sources

Resistance status of the carmine spider mite, Tetranychus cinnabarinus and the twospotted spider mite, Tetranychus urticae to selected acaricides on strawberries. [PDF]

open access: yes, 2015
The carmine spider mite, Tetranychus cinnabarinus (Boisduval) and the twospotted spider mite, Tetranychus urticae Koch, are serious pests of strawberries and many other horticultural crops.
Bi, Jian-Long   +3 more
core   +1 more source

The Evolution of Rural Household Electricity Demand in Grid-Connected Communities in Developing Countries: Result of a Survey

open access: yesFuture Cities and Environment, 2020
The expected electricity demand level of unelectrified communities is one of the variables that guide rural electrification planners and electricity distribution utilities in making the choice of extending electricity grid to such communities and in ...
Salisu Isihak   +2 more
doaj   +1 more source

Molecular Spiders on the Plane [PDF]

open access: yesPhys. Rev. E 85, 061927 (2012), 2012
Synthetic bio-molecular spiders with "legs" made of single-stranded segments of DNA can move on a surface covered by single-stranded segments of DNA called substrates when the substrate DNA is complementary to the leg DNA. If the motion of a spider does not affect the substrates, the spider behaves asymptotically as a random walk.
arxiv   +1 more source

Recent Advances in Development of Functional Spider Silk-Based Hybrid Materials

open access: yesFrontiers in Chemistry, 2020
Silkworm silk is mainly known as a luxurious textile. Spider silk is an alternative to silkworm silk fibers and has much more outstanding properties. Silk diversity ensures variation in its application in nature and industry.
A. Kiseleva   +2 more
semanticscholar   +1 more source

The Implicit Relational Assessment Procedure (IRAP) as a measure of spider fear, avoidance and approach [PDF]

open access: yes, 2016
The current study examined the use of the Implicit Relational Assessment Procedure (IRAP) as a measure of spider fear, approach, and avoidance. Participants were drawn from a normative sample of university undergraduates.
Barnes-Holmes, Patrick Michael Dermot   +2 more
core   +2 more sources

Species conservation profile of the stenoendemic cave spider Pimoa delphinica (Araneae, Pimoidae) from the Varaita valley (NW-Italy)

open access: yesBiodiversity Data Journal, 2017
Pimoa delphinica Mammola, Hormiga & Isaia, 2016 is a troglophile araneoid spider endemic of the high Varaita valley (Western Alps, Province of Cuneo, NW Italy).
Stefano Mammola   +2 more
doaj   +3 more sources

Ground spider communities in experimentally disturbed Mediterranean woodland habitats [PDF]

open access: yes, 2011
The protected Mediterranean woodland habitats in Israel are undergoing tree encroachment, resulting in loss of open patches with herbaceous vegetation. We suggested that this process results in a ground spider community dominated by shade-loving species.
Angel, Noa, Assaf, Nirit, Lubin, Yael
core   +2 more sources

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