Results 101 to 110 of about 7,347 (247)

Simple Mechanism for Optimal Light-Use Efficiency of Photosynthesis Inspired by Giant Clams

PRX Energy
In photosymbiotic giant clams, vertical columns of single-celled algae absorb sunlight that has first been forward scattered from a superficial layer of light-scattering cells called iridocytes.
Amanda L. Holt, Lincoln F. Rehm, Alison M. Sweeney   +2 more
doaj   +1 more source

On the compatibility of single‐scan terrestrial LiDAR with digital photogrammetry and field inventory metrics of vegetation structure in forest and agroforestry landscapes

Remote Sensing in Ecology and Conservation, EarlyView.
The single‐scan approach to terrestrial laser scanning (TLS) and the self‐terrain‐normalized form of drone‐based digital aerial photogrammetry (DAP) offer practical options for rapid assessment of the vegetation structure in tropical landscapes.
Magnus Onyiriagwu, Nereoh Leley, Caleb W. T. Ngaba, Anthony Macharia, Henry Muchiri, Abdalla Kisiwa, Martin Ehbrecht, Delphine Clara Zemp   +7 more
wiley   +1 more source

Improved Cerrado Wetland Mapping Through Seasonal Moisture Metrics, Terrain Information and Semantic Segmentation

Remote Sensing in Ecology and Conservation, EarlyView.
Brazil's Cerrado valley wetlands—swamp savanna and gallery forest—are highly important for the biome's water cycle and carbon storage and are susceptible to degradation from the impacts of land use expansion and the climate crisis. In support of their detailed monitoring and assessment, we developed and tested a transferable mapping approach that ...
Felix Beer, Hugo do Nascimento Bendini, Mateus de Souza Miranda, Vu‐Dong Pham, Leila Maria Garcia Fonseca, Cássia Beatriz Rodrigues Munhoz, Sebastian van der Linden   +6 more
wiley   +1 more source

Tropical plane geometric constructions: a transfer technique in Tropical Geometry

Revista Matemática Iberoamericana, 2011
The notion of geometric construction is introduced. This notion allows to compare incidence configurations both lying in the algebraic and the tropical plane. We provide sufficient conditions in a geometric construction to ensure that there is always an algebraic counterpart related by tropicalization.
openaire   +4 more sources

Camels as a Climate‐Resilient Linchpin for Sustainable Development in Global Drylands

Sustainable Development, EarlyView.
ABSTRACT Camels represent a significant, yet underutilized, asset for advancing integrated sustainable development in the world's expanding drylands. Previous reviews have examined camels' physiology, milk composition, or pastoral systems in isolation; this review examines their potential as a climate‐resilient linchpin for food systems by synthesizing
Ayana Angassa, Minyahel Tilahun, Solomon G. Tesfamichael   +2 more
wiley   +1 more source

Portable, Benchtop and Micro‐XRF in Agriculture—Present and Future From the Hardware Perspective

X-Ray Spectrometry, EarlyView.
ABSTRACT X‐ray fluorescence (XRF) spectrometry has been an important tool in agricultural studies recently. This technique allows the multielemental, direct, and in situ analysis. The objective of this review is to evaluate the use of XRF in agriculture focusing on plant and soil samples based on indexed articles in the Scopus database from 2020 to ...
Eduardo de Almeida, Felipe Rodrigues Santos, Fabio Luiz Melquiades, Gabriel Sgarbiero Montanha, Tiago Rodrigues Tavares, Eduardo Santos, Higor José Freitas Alves da Silva, Hudson Wallace Pereira de Carvalho   +7 more
wiley   +1 more source

Development and validation of a 3D printed phantom for image quality assessment in fluoroscopy. [PDF]

J Appl Clin Med Phys
Abstract Background Low‐contrast detectability is a key image‐quality parameter in fluoroscopy, directly influencing diagnostic accuracy and patient safety. Commercial phantoms such as the CDRAD provide reliable assessments but are costly and lack flexibility for routine use. Purpose To develop and validate a low‐cost 3D‐printed phantom for fluoroscopy
Marques TGS, Pina DR.
europepmc   +2 more sources

Polyhedral and tropical geometry of flag positroids

Algebra & Number Theory
43 pages New version containing an updated version of the main theorem, which originally contained an error. An erratum, available at https://www.math.cmu.edu/~ceur/pdf/BEW_NonnegTropFlagVar_Erratum.pdf, has been submitted to supplement the published version of this ...
Boretsky, Jonathan, Eur, Christopher, Williams, Lauren   +2 more
openaire   +4 more sources

Splitting CEGM amplitudes

Journal of High Energy Physics
The CEGM formalism offers a general framework for scattering amplitudes, which rests on Grassmannians, moduli spaces and tropical geometry. The physical implications of this generalization are still to be understood.
Bruno Giménez Umbert, Bernd Sturmfels
doaj   +1 more source

Crystallography in Open Science and its open educational resources

Acta Crystallographica Section A, EarlyView.
Open Science is the movement to make scientific research, the data and their dissemination available to any member of an inquiring society, from professionals to citizens, irrespective of their economic situation. The IUCr provides fully open educational resources to Global South and Global North readers and authors.This article presents a review of ...
John R. Helliwell
wiley   +1 more source