Results 81 to 90 of about 103,193 (342)

Evaporation‐Enhanced Redox Cycling for Rapid Detection of Attomolar SARS‐CoV‐2 Virions Using Nanolithography‐Free Electrochemical Devices

open access: yesAdvanced Materials Technologies, EarlyView.
This study presents microfabricated electrochemical sensors for detecting ultralow viral particles counts through evaporation‐enhanced redox cycling (E2RC). To achieve sub‐micrometer gap in interdigitated microelectrodes, a scalable, nanolithography‐free fabrication method is developed.
Pouya Soltan Khamsi   +2 more
wiley   +1 more source

Magnetic Force‐Induced Self‐Assembly and Flip‐Chip Alignment on Electroplated Multilayer Solder with Tailored Melting Points

open access: yesAdvanced Materials Technologies, EarlyView.
This work demonstrates fluidic self‐assembly and self‐alignment of flip‐chips using a magnetic field for agitation and orientation. Pb‐free solder bumps with tailored transformation imprinted melting points enable selective capturing on low‐melting solder in water. After capturing, final alignment is achieved through magnetic forces.
Mahsa Kaltwasser   +3 more
wiley   +1 more source

Does a Change from Whole to Powdered Food (Artemia franciscana eggs) Increase Oviposition in the Ladybird Coleomegilla maculata?

open access: yesInsects, 2015
The limited availability of alternative foods to replace natural prey hinders cost-effective mass production of ladybird beetles for augmentative biological control. We compared the effects of powdered vs. whole Artemia franciscana (A.
Eric W. Riddick, Zhixin Wu
doaj   +1 more source

Photochromic Organic–Inorganic Material for Focusable Adaptive Lenses Fabrication

open access: yesAdvanced Photonics Research, EarlyView.
This study investigates a zirconia‐based hybrid organic–inorganic material incorporating dithienylethene molecules for adaptive optics. It offers excellent photochromic properties, thermal stability, and adjustable thickness, enabling effective refractive index modulation.
Giorgia Franchin   +6 more
wiley   +1 more source

Tailoring Second Harmonic Generation via Strong Coupling in a One‐Dimensional Photonic Crystal Heterostructure

open access: yesAdvanced Photonics Research, EarlyView.
The strong coupling is investigated as an effective method to modulate the second‐harmonic generation (SHG) in the defect mode and Tamm plasmon resonances. Throughout the entire anticrossing Rabi splitting process induced by strong coupling, the difference in SHG efficiency between two resonances can be modulated by up to two orders of magnitude ...
Ying Zhu   +7 more
wiley   +1 more source

Predators [PDF]

open access: yesJournal of Thrombosis and Haemostasis, 2018
F R, Rosendaal, P H, Reitsma
openaire   +3 more sources

Exigências térmicas de Doru lineare Eschs. e Doru luteipes Scudder em laboratório Thermal requirements of Doru lineare Eschs. and Doru luteipes Scudder in the laboratory

open access: yesCiência Rural, 2010
Algumas espécies de tesourinhas (Dermaptera: Forficulidae) são importantes predadoras da lagarta-do-cartucho do milho Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae).
Amarildo Pasini   +3 more
doaj   +1 more source

A minimal model of predator-swarm interactions [PDF]

open access: yesJournal of the Royal Society Interface 11:20131208 (2014), 2014
We propose a minimal model of predator-swarm interactions which captures many of the essential dynamics observed in nature. Different outcomes are observed depending on the predator strength. For a "weak" predator, the swarm is able to escape the predator completely.
arxiv  

Chemotactic predator-prey dynamics [PDF]

open access: yes, 2010
A discrete chemotactic predator-prey model is proposed in which the prey secrets a diffusing chemical which is sensed by the predator and vice versa. Two dynamical states corresponding to catching and escaping are identified and it is shown that steady hunting is unstable.
arxiv   +1 more source

Picomolar Detection of Tau Protein Using 1D Photonic Crystal Biochips for Alzheimer's Disease Diagnosis

open access: yesAdvanced Sensor Research, EarlyView.
Elevated levels of Tau in cerebrospinal fluids or other body fluids are associated with the progression of Alzheimer's disease. An optical technique, based on a dual label‐free and fluorescence operation mode, is developed to detect Tau protein in both standard running buffer and cerebrospinal fluid.
Alberto Sinibaldi   +7 more
wiley   +1 more source

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