Results 81 to 90 of about 76,759 (221)

Effect of the Samples’ Surface With Complex Microscopic Geometry on 3 × 3 Mueller Matrix Measurement of Tissue Bulks

Frontiers in Bioengineering and Biotechnology, 2022
The clinical in vivo tissue bulks’ surface is always coarse and shows a complex microscopic geometry which may affect the visual effect of polarization images and calculation of polarization parameters of the sample.
Yi-Rong Liu, Yi-Rong Liu, Wei-Zheng Sun, Jian Wu   +3 more
doaj   +1 more source

A method for reducing specular reflections in Mueller matrix imaging

Optics Express
Mueller matrix polarimetry has emerged as a powerful tool for non-destructive optical analysis of biological tissues and bioorganic materials, offering detailed insights into polarization-specific properties such as diattenuation, retardance, and depolarization.
Iago Pardo, Subiao Bian, Esther Pascual, Oriol Arteaga   +3 more
openaire   +3 more sources

Mueller coherency matrix method for contrast image in tissue polarimetry [PDF]

SPIE Proceedings, 2007
In this work, we propose the use of the Mueller Coherency matrix of biological tissues in order to increase the information from tissue images and so their contrast. This method involves different Mueller Coherency matrix based parameters, like the eigenvalues analysis, the entropy factor calculation, polarization components crosstalks, linear and ...
Arce Diego, José Luis, Fanjul Vélez, Félix, Samperio García, David, Pereda Cubián, David   +3 more
openaire   +2 more sources

Mueller matrix imaging with a spatially modulated polarization light source

Optics Express, 2022
In this paper, we present a Mueller matrix imaging system consisting of a spatially modulated polarization light source (SMPL) and a dual division-of-focal-plane (DoFP) polarimeters as the PSA and 2D detector. The system does not contain moving parts such as a rotating stage, which leads to more robust and reliable operations for applications in ...
Yan, Leng, Tongyu, Huang, Haojie, Pei, Zheng, Hu, Bin, Guo, Ran, Liao, Hui, Ma   +6 more
openaire   +2 more sources

Spatial metrics in fire ecology: seeking consistency amidst complexity

Biological Reviews, EarlyView.
ABSTRACT Technological advances, including remote sensing, have led to a proliferation of metrics used in ecological studies to examine spatial patterns of fire regimes and their ecological effects. Researchers can use many different metrics to analyse spatial variation in both fire events and resulting fire regimes, including fire size, shape ...
Alexander R. Carey, Geoffrey J. Cary, Teigan Cremona, Hugh F. Davies, Brett P. Murphy, Sam C. Banks   +5 more
wiley   +1 more source

Snapshot imaging Mueller matrix polarimeter using polarization gratings [PDF]

Optics Letters, 2012
A snapshot imaging Mueller matrix polarimeter (SIMMP) is theoretically described and empirically demonstrated through simulation. Spatial polarization fringes are localized onto a sample by incorporating polarization gratings (PGs) into a polarization generator module.
Kudenov, Michael W., Escuti, Michael J., Hagen, Nathan, Dereniak, Eustace L., Oka, Kazuhiko   +4 more
openaire   +3 more sources

RNA‐centric world of retroviruses: unravelling the molecular strategies of genomic RNA packaging

Biological Reviews, EarlyView.
ABSTRACT Retroviruses constitute a unique group of RNA viruses that have profoundly influenced both evolutionary trajectories and biomedical research. Their ability to reverse transcribe and integrate into host genomes has shaped genomic architecture across species and contributed to our understanding of oncogenes, gene regulation, and RNA biology ...
Mohammad Abdullah Jehad, Suresha G. Prabhu, Lizna M. Ali, Vineeta N. Pillai, Farah Mustafa, Tahir A. Rizvi   +5 more
wiley   +1 more source

Error propagation in polarimetric demodulation [PDF]

, 2008
The polarization analysis of the light is typically carried out using modulation schemes. The light of unknown polarization state is passed through a set of known modulation optics and a detector is used to measure the total intensity passing the system.
Collados, M., Ramos, A. Asensio
core   +1 more source

Customized depolarization spatial patterns with dynamic retardance functions

Scientific Reports, 2021
In this work we demonstrate customized depolarization spatial patterns by imaging a dynamical time-dependent pixelated retarder. A proof-of-concept of the proposed method is presented, where a liquid–crystal spatial light modulator is used as a spatial ...
David Marco, Guadalupe López-Morales, María del Mar Sánchez-López, Ángel Lizana, Ignacio Moreno, Juan Campos   +5 more
doaj   +1 more source

The Influence of Responsible Leadership on Corporate Social Responsibility: The Mediating Role of Affective Organizational Commitment and Organizational Identification

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Currently, organizations are facing unprecedented stakeholder expectations for corporate social responsibility (CSR). To face this challenge, responsible leadership is crucial. However, the mechanisms that explain how these leaders encourage CSR engagement are underexplored, emerging as a critical research priority.
Rafael‐Alejandro Piñeros‐Espinosa, Francoise Contreras, Ghulam Abid, Ignacio Aldeanueva‐Fernández   +3 more
wiley   +1 more source