Results 91 to 100 of about 306,692 (358)

Vitellogenesis and Embryogenesis in Spiders: A Biochemical Perspective

open access: yesInsects
This review compiles information on the biochemistry of spider reproduction, from vitellogenesis to postembryonic development. Despite the diversity of spiders, biochemical studies on their reproduction remain scarce.
Carlos Fernando Garcia   +2 more
doaj   +1 more source

Synergistic Microcrack Engineering and Auxetic Metamaterials for Enhanced Sensitivity in Stretchable Strain Sensors

open access: yesAdvanced Materials Technologies, EarlyView.
A highly sensitive crack‐based piezoresistive strain sensor is developed using a biaxially pre‐stretched multi‐walled carbon nanotubes/Ecoflex composite and integrated with auxetic metamaterials. Biaxial pre‐stretching improves the sensitivity by 56% compared to the uniaxially pre‐stretched strain sensor.
Jaewon Cho   +3 more
wiley   +1 more source

Zelotes tenuis (Araneae: Gnaphosidae) neu für Österreich

open access: yesArachnologische Mitteilungen, 2007
The first record of the Mediterranean spider Zelotes tenuis (L. Koch, 1866) in Austria (Burgenland, Leithaprodersdorf ) was made in a small meadow strip which is situated between a moist ditch and a small grassy road verge.
Hepner, Martin, Milasowszky, Norbert
doaj   +1 more source

Divergences between the Brazilian national information systems for recording deaths from venomous animals

open access: yesJournal of Venomous Animals and Toxins including Tropical Diseases, 2019
Background: This paper aims to highlight and analyze discrepancies in reporting of deaths due to venomous animals in Brazil, from 2001 to 2015, between two national information systems: The Notifiable Diseases Information System (Sistema de Informação de
Rosany Bochner   +1 more
doaj   +1 more source

Demonstration of 3D‐Printed Optical Antennas for High‐Speed Optical Wireless Communication Using Market‐Ready Materials

open access: yesAdvanced Materials Technologies, EarlyView.
The feasibility of 3D‐printed optical antennas using commercial, non‐optical materials for Optical Wireless Communications (OWC) is demonstrated. This study combines spectral analysis, anisotropy effects, and telecom‐relevant optical measurements, revealing promising performance and novel insights for low‐cost, customizable photonic components in ...
Mauro Aresti   +6 more
wiley   +1 more source

Spiders (Arachnida: Araneae) of Saba Island, Lesser Antilles: Unusually high species richness indicates the Caribbean Biodiversity Hotspot is woefully undersampled [PDF]

open access: yes, 2011
Saba Island (Caribbean Netherlands) is one of the northernmost islands of the Lesser Antilles. It is only 13 square kilometers but contains a wide variety of potential spider habitats including dry, moist, and elfin forests.
Sikes, Derek S., Slowik, Jozef
core  

Design and construction of a carbon fiber gondola for the SPIDER balloon-borne telescope

open access: yes, 2014
We introduce the light-weight carbon fiber and aluminum gondola designed for the SPIDER balloon-borne telescope. SPIDER is designed to measure the polarization of the Cosmic Microwave Background radiation with unprecedented sensitivity and control of ...
Ade, P. A. R.   +46 more
core   +1 more source

Spider-Like Coronary Anatomy; the True Spider!

open access: yesArquivos Brasileiros de Cardiologia, 2017
Introducao Anomalias coronarias sao raras, afetando aproximadamente 0,3 a 5,6% da populacao em geral, de acordo com a literatura. No entanto, alguns casos podem resultar em eventos fatais graves, tais como isquemia do miocardio, arritmias e infarto agudo do miocardio., […] Anatomia Coronariana em Posicao Spider: a Verdadeira Aranha!
Cerit, Levent   +4 more
openaire   +5 more sources

When Cellulose Moves: Smart Sensors and Actuators

open access: yesAdvanced Materials Technologies, EarlyView.
This review highlights cellulose‐derived soft actuators alongside with cellulose‐based sensors. Emphasis is placed on their integration into multifunctional devices that couple sensing and actuation to mimic natural motion and adaptability. We also discuss the challenges of achieving robust, reversible, and multi‐stimuli‐responsive motion, and outline ...
Francisco Sousa   +2 more
wiley   +1 more source

FRAME – A FRAMEwork for Objectively Measuring Fear Based on Physiological and Psychological Data

open access: yesCurrent Directions in Biomedical Engineering
Psychological trials, such as behavioural avoidance tests (BAT), are a fundamental part of the phobia therapeutic process. In order to link physiological reactions with specific points in time during psychological trials, it is necessary to integrate ...
Grensing Florian   +4 more
doaj   +1 more source

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