When Daphnia pulex are presented on one side of their visual field with diffuse, large-area linearly polarized light with a horizontal e-vector and on the other side of their visual field with large-area polarized light with a lower degree of polarization, they swim towards the place with the higher degree of polarization. The response is intensity-invariant: Daphnia pulex swim towards the place of maximal polarization regardless of which side of their visual field has the higher intensity of light. As a result of Rayleigh scattering in a pond, the light surrounding the Daphnia is polarized and has a horizontal e-vector. Near the shore, polarization is not homogeneous. The light seen in the direction of the open water has a higher degree of polarization than that seen in the direction towards the shore. Therefore, in a pond, swimming towards the place with the highest degree of polarization leads the Daphnia away from the shore. For Daphnia, this response explains a mechanism that underlies the well-known phenomenon of 'shore flight', the active departure of small pelagic crustaceans from shore zones.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1242/jeb.202.24.3631 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
FPGA acceleration of tensor network computing for quantum spin models.
Rev Sci Instrum
January 2025
Key Laboratory of Polar Materials and Devices (MOE), School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China.
Increasing the degree of freedom for quantum entanglement within tensor networks can enhance the depiction of the essence in many-body systems. However, this enhancement comes with a significant increase in computational complexity and critical slowing down, which drastically increases time consumption. This work converts a quantum tensor network algorithm into a classical circuit on the Field Programmable Gate Arrays (FPGAs) and arranges the computing unit with a dense parallel design, efficiently optimizing the time consumption.
View Article and Find Full Text PDFSynthesis and characterization of corn starch esters obtained in oleic acid/L(+)-tartaric acid medium.
Carbohydr Polym
March 2025
Planta Piloto de Ingeniería Química (PLAPIQUI), CONICET, - Universidad Nacional del Sur (UNS), Camino La Carrindanga km 7, 8000 Bahía Blanca, Argentina; Departamento de Ingeniería Química, UNS, Avenida Alem 1253, 8000 Bahía Blanca, Argentina. Electronic address:
In this study, corn starch esters were obtained by a novel methodology using oleic acid as an esterifying agent and L(+)-tartaric acid as both catalyst and esterifying agent. The degree of substitution (DS) was determined along the reaction time to control the level of substitution achieved (up to 0.33), while all the other reaction parameters were maintained constant.
View Article and Find Full Text PDFThe angle of polarized light (AOP) property for optical classification of the crosslinked polymer.
Spectrochim Acta A Mol Biomol Spectrosc
December 2024
Department of Biomedical Engineering, Faculty of Engineering, Universiti Malaya, Federal Territory of Kuala Lumpur, Kuala Lumpur 50603 Malaysia.
Light-matter interaction has been profoundly studied for sample material classification. However, the optical classification of the sample through the polarized light-matter interaction remains underexplored. It is limited to the measurement of intensity instead of the angle of polarized light (AOP) for its degree of polarization.
View Article and Find Full Text PDFEndothelial cells under disturbed flow release extracellular vesicles to promote inflammatory polarization of macrophages and accelerate atherosclerosis.
BMC Biol
January 2025
Institute of Biomedical Engineering, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, China.
Background: Extracellular vesicles (EVs) derived from endothelial cells (ECs) are increasingly recognized for their role in the initiation and progression of atherosclerosis. ECs experience varying degrees and types of blood flow depending on their specific arterial locations. In regions of disturbed flow, which are predominant sites for atherosclerotic plaque formation, the impact of disturbed flow on the secretion and function of ECs-derived EVs remains unclear.
View Article and Find Full Text PDFHybrid entanglement carrying orbital angular momentum.
Sci Bull (Beijing)
January 2025
State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China; Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China. Electronic address:
Hybrid continuous-variable (CV) and discrete-variable (DV) entanglement is an essential quantum resource of hybrid quantum information processing, which enables one to overcome the intrinsic limitations of CV and DV quantum protocols. Besides CV and DV quantum variables, introducing more degrees of freedom provides a feasible approach to increase the information carried by the entangled state. Among all the degrees of freedom of photons, orbital angular momentum (OAM) has potential applications in enhancing the communication capacity of quantum communication and precision of quantum measurement.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!