Results 21 to 30 of about 4,169 (134)
A review of electronic portal imaging devices (EPIDs) [PDF]
Medical Physics, 1992 On‐line electronic portal imaging devices are beginning to come into clinical service in support of radiotherapy. A variety of technologies are being explored to provide real‐time or near real‐time images of patient anatomy within x‐ray fields during treatment on linear accelerators.
Boyer, Arthur L. +7 more
openaire +4 more sources
New Phytologist, Volume 251, Issue 3, Page 1075-1087, August 2026.Examining the potential thermal sensitivity of the model parameter g1 when accounting for the additive nature of underlying components including CO2 compensation point (Г*) and the marginal water cost of plant carbon gain (λ), when assuming λ is dependent upon changes in the viscosity (inverse of fluidity) of water (η, Pa·s) and the solubility of CO2 ...
Alexander W. Cheesman +5 more
wiley +1 more source
The algal homolog of the plant CER1 and CER3 proteins is a bifunctional hydrocarbon‐forming enzyme
New Phytologist, Volume 251, Issue 3, Page 1311-1328, August 2026.Schematic representation of the proposed reactions carried out by a CER1/3 protein from green algae. CoA, coenzyme A; CTD, C‐terminal domain; Cys, catalytic cysteine of C‐terminal domain; His, catalytic histidines of N‐terminal domain; NTD, N‐terminal domain.
Ángel Baca‐Porcel +9 more
wiley +1 more source
Endogenous RALF peptide function is required for powdery mildew host colonization
New Phytologist, Volume 251, Issue 4, Page 2073-2090, August 2026.Model of RALF‐FER‐dependent effects on powdery mildew sporulation. Summary The receptor kinase FERONIA (FER) is a susceptibility factor for biotrophic powdery mildew fungal pathogens in Arabidopsis thaliana, but the underlying molecular mechanisms remain largely unknown. FER is required for the perception of endogenous RAPID ALKALINIZATION FACTOR (RALF)
Henriette Leicher +17 more
wiley +1 more source
New Phytologist, Volume 251, Issue 3, Page 1267-1282, August 2026.Biosynthesis and accumulation of tanshinones in the periderm of Salvia miltiorrhiza during secondary root growth. Summary Perennial herbs develop long‐lived roots that undergo repeated cycles of secondary growth, during which the periderm functions as a protective barrier and a major site of specialized metabolite accumulation.
Licheng Liu +19 more
wiley +1 more source
CNGCs in Marchantia paleacea uncouple arbuscular mycorrhizal symbiosis and rhizoid development
New Phytologist, Volume 251, Issue 4, Page 2027-2040, August 2026.Rhizoid growth and AM fungal infection are uncoupled. Summary In Marchantia paleacea, MpaDMI1‐dependent nuclear Ca2+ oscillations are essential for arbuscular mycorrhizal (AM) fungal colonisation, indicating that endosymbiosis‐mediated nuclear Ca2+ signalling is a conserved feature of land plant–AM symbiosis.
Anson Ho Ching Lam +3 more
wiley +1 more source
Thioredoxin system modulates metabolic and stomatal responses to elevated CO2 in Arabidopsis
New Phytologist, Volume 251, Issue 4, Page 1774-1791, August 2026.Integrative model of extraplastidial NADPH‐dependent thioredoxin reductase/thioredoxin system‐mediated regulation of stomatal function, redox homeostasis, and metabolic responses under ambient and elevated CO2 in Arabidopsis thaliana. Summary The NADPH‐dependent thioredoxin reductase/thioredoxin (NTR/TRX) system plays a central role in maintaining ...
Paula da Fonseca‐Pereira +11 more
wiley +1 more source
New Phytologist, Volume 251, Issue 4, Page 2266-2283, August 2026.Morphospace position and phylogenetic placements of Trimeriantha monopolyada. Summary Floral structure is a key aspect of angiosperm diversity. Recent research revealed that significant floral disparity was already present in the Cretaceous. However, our understanding of early floral diversity remains limited, as it is directly dependent on the fossil ...
Xieting Wu +7 more
wiley +1 more source
New Phytologist, Volume 251, Issue 4, Page 1909-1929, August 2026.A working model for GLYCOGEN SYNTHASE KINASE 3‐mediated phosphorylation of FLOWERING CONTROL LOCUS A in the regulation of brassinosteroid signaling and rice growth and development. Summary Brassinosteroid (BR) signaling plays a critical role in rice (Oryza sativa L.) grain development.
Jiaqi Zhang +14 more
wiley +1 more source
Performance optimization of the Varian aS500 EPID system
Journal of Applied Clinical Medical Physics, 2006 Today, electronic portal imaging devices (EPIDs) are widely used as a replacement to portal films for patient position verification, but the image quality is not always optimal. The general aim of this study was to optimize the acquisition parameters of an amorphous silicon EPID commercially available for clinical use in radiation therapy with the view
Berger, Lucie +3 more
openaire +2 more sources