Results 61 to 70 of about 49,403 (235)

Local modulation of chemoattractant concentrations by single cells: dissection using a bulk-surface computational model [PDF]

open access: yes, 2016
Chemoattractant gradients are usually considered in terms of sources and sinks that are independent of the chemotactic cell. However, recent interest has focused on ‘self-generated’ gradients, in which cell populations create their own local gradients as
Insall, R.H., Mackenzie, J.A., Nolan, M.
core   +1 more source

Transition From Psoriasis to Psoriatic Arthritis is Characterized by Distinct Alterations in Peripheral Blood Tc17, Th17, and CD4+ Effector Memory Cells

open access: yesArthritis &Rheumatology, EarlyView.
Objective Cellular mechanisms driving transition from psoriasis to psoriatic arthritis have remained largely elusive. Thus, we investigated changes within the peripheral blood T cell compartment associated with the transition phase. Methods In an observational study, 116 patients were examined and categorized into subgroups including psoriasis with at ...
Hanna Graßhoff   +19 more
wiley   +1 more source

Identification of a novel plant-derived attractant for Acromyrmex lobicornis leaf-cutting ants

open access: yesAnais da Academia Brasileira de Ciências
: Leaf-cutting ants are considered major pests of agriculture and forestry in the Neotropics. Attractive toxic baits are the prevailing method for managing them.
ANDREA M. ALMA   +3 more
doaj   +1 more source

Difference in chemotaxis of Salmonella cells between serine and aspartic acid

open access: yesJournal of Biomechanical Science and Engineering, 2021
We investigated how the chemotactic behaviors of peritrichous bacteria that repeat straight swimming (runs) and directional changes (tumbles) differ depending on the chemical species and concentrations of the attractant.
Tonau NAKAI   +3 more
doaj   +1 more source

Ultrasensitivity and Fluctuations in the Barkai-Leibler Model of Chemotaxis Receptors in {\it Escherichia coli}

open access: yes, 2017
A stochastic version of the Barkai-Leibler model of chemotaxis receptors in {\it E. coli} is studied here to elucidate the effects of intrinsic network noise in their conformational dynamics.
Gopalakrishnan, Manoj, Roy, Ushasi
core   +2 more sources

Molecular bases of insect odorant receptor function: specificity and evolution

open access: yesBiological Reviews, EarlyView.
ABSTRACT Insect odorant receptors (ORs) are a class of chemoreceptors that insects use to detect volatile cues in their environment. In recent years, major advances in the field of structural biology have made it possible to obtain the first structures of insect ORs.
Zibo Li   +5 more
wiley   +1 more source

Mixture of Synthetic Plant Volatiles Attracts More Stick Tea Thrips Dendrothrips minowai Priesner (Thysanoptera: Thripidae) and the Application as an Attractant in Tea Plantations

open access: yesPlants
The stick tea thrip (Dendrothrips minowai) is one of the most serious sucking pests of tea plants (Camellia sinensis) in China, North Korea, and Japan. Plant volatile lures are widely used for both monitoring and mass trapping.
Zhengwei Xu   +12 more
doaj   +1 more source

Comparison of Three Attractants for the Effective Capture of Xylotrechus chinensis Adults in Multi-Funnel Traps

open access: yesInsects, 2023
The Asian coleopteran Xylotrechus chinensis (Chevrolat) (Cerambycidae: Cerambycinae) is an invasive species in several European countries, attacking mulberry trees.
Nickolas G. Kavallieratos   +6 more
doaj   +1 more source

Estimating Parameters of Partial Differential Equations with Gradient Matching [PDF]

open access: yes, 2017
Parameter inference in partial differential equations (PDEs) is a problem that many researchers are interested in. The conventional methods suffer from severe computational costs because these method require to solve the PDEs repeatedly by numerical ...
Giurghita, Diana   +3 more
core  

The Malaise Trap: Its Utility and Potential for Sampling Insect Populations [PDF]

open access: yes, 2017
Slightly over three decades have elapsed since Malaise (1937) first published plans for the insect trap now bearing his name a stationary mesh tent with open sides, a central baffle, and a top-mounted collecting apparatus (Fig. 1).
Matthews, Janice R., Matthews, Robert W.
core   +3 more sources

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