Results 1 to 10 of about 2,363,558 (309)

The New Kid on the Block: Online Adaptive Radiotherapy in the Treatment of Gynecologic Cancers

open access: yesCurrent Oncology, 2023
Online adaptive radiation is a new and exciting modality of treatment for gynecologic cancers. Traditional radiation treatments deliver the same radiation plan to cancers with large margins.
Allen Yen   +2 more
doaj   +1 more source

Characterization of the complete chloroplast genome of the woody sow-thistle, Sonchus leptocephalus (Asteraceae) endemic to the Canary Islands

open access: yesMitochondrial DNA. Part B. Resources, 2019
Sonchus leptocephalus belongs to a core member of the woody Sonchus alliance endemic to the Macaronesian Islands in the Atlantic Ocean. The alliance has been subject to intensive investigations of adaptive radiation on oceanic islands.
Hye-Been Kim   +4 more
doaj   +1 more source

Phylogeny of Hawaiian Melicope (Rutaceae): RAD-seq Resolves Species Relationships and Reveals Ancient Introgression

open access: yesFrontiers in Plant Science, 2019
Hawaiian Melicope are one of the major adaptive radiations of the Hawaiian Islands comprising 54 endemic species. The lineage is monophyletic with an estimated crown age predating the rise of the current high islands.
Claudia Paetzold   +6 more
doaj   +1 more source

Rapid radiations underlie most of the known diversity of life

open access: yesFrontiers in Ecology and Evolution
Rapid radiations, including adaptive radiations, are of considerable interest to evolutionary biologists, in large part because they are thought to underlie much of the species diversity of life.
John J. Wiens, Daniel S. Moen
doaj   +1 more source

“And if you gaze long into an abyss, the abyss gazes also into thee”: four morphs of Arctic charr adapting to a depth gradient in Lake Tinnsjøen

open access: yesEvolutionary Applications, 2020
The origin of species is a central topic in biology. Ecological speciation might be a driver in adaptive radiation, providing a framework for understanding mechanisms, level, and rate of diversification. The Arctic charr Salvelinus alpinus L.
Kjartan Østbye   +5 more
doaj   +1 more source

Ecological significance of newly recorded halophilic Pharyngomonas kirbyi from two Korean solar salterns

open access: yesJournal of Ecology and Environment
Background: Hypersaline environments (> 40 practical salinity units [PSU]) represent some of the most extreme conditions on Earth, supporting a variety of halophilic and halotolerant bacteria, archaea, and protists.
Hyeon Been Lee, Jong Soo Park
doaj   +1 more source

Variation in parasite resistance of Arctic charr, Salvelinus alpinus, between and within sympatric morphs

open access: yesEcology and Evolution, 2021
Genetic variation in resistance against parasite infections is a predominant feature in host–parasite systems. However, mechanisms maintaining genetic polymorphism in resistance in natural host populations are generally poorly known.
Anssi Karvonen   +4 more
doaj   +1 more source

A Study to Assess the Dosimetric Impact of the Anatomical Changes Occurring in the Parotid Glands and Tumour Volume during Intensity Modulated Radiotherapy using Simultaneous Integrated Boost (IMRT‐SIB) in Head and Neck Squamous Cell Cancers

open access: yesCancer Medicine, 2021
Background Anatomical variations in head and neck cancer during IMRT leads to volume shrinkage, results in dosimetric variations in tumour and normal tissue including parotid glands, with a risk of radiation toxicities.
Arunima Ghosh   +4 more
doaj   +1 more source

The terroir of the finch: How spatial and temporal variation shapes phenotypic traits in Darwin's finches

open access: yesEcology and Evolution, 2022
The term terroir is used in viticulture to emphasize how the biotic and abiotic characteristics of a local site influence grape physiology and thus the properties of wine.
Paola L. Carrión   +13 more
doaj   +1 more source

Ordovician rafinesquinine brachiopods from peri-Gondwana [PDF]

open access: yesActa Palaeontologica Polonica, 2016
The study of the strophomenide brachiopods of the subfamily Rafinesquininae present in the main Upper Ordovician sections, representing the Mediterranean margin of Gondwana, has revealed an increase in diversity of the group at the region during that ...
Jorge Colmenar
doaj   +1 more source

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