Results 31 to 40 of about 126,743 (307)
Convergence and plasticity in the adaptive radiation of cichlid fishes [PDF]
, 2013 Ever since Charles Darwin and Alfred Wallace (1858) propelled our understanding about the importance of natural selection in the transformation of species, researchers endeavoured to use this intellectual foundation to explain larger patterns of ...
Muschick, Moritz
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Magnetic Resonance Imaging Sequences and Technologies in Adaptive Radiation Therapy. [PDF]
Int J Radiat Oncol Biol PhysRadiation therapy is essential in both curative and palliative treatments for most cancers. However, traditional radiation therapy workflows using computed tomography (CT) simulation-based planning and cone beam CT image guidance face several technical ...
Ghafarian M +8 more
europepmc +2 more sources
"Adaptive response" - some underlying mechanisms and open questions [PDF]
, 2008 Organisms are affected by different DNA damaging agents naturally present in the environment or released as a result of human activity. Many defense mechanisms have evolved in organisms to minimize genotoxic damage. One of them is induced radioresistance
Stephka G. Chankova +5 more
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Dendrite fragmentation induced by massive-like δ–γ transformation in Fe–C alloys
Nature Communications, 2019 Transitioning from columnar to equiaxed grains is paramount for desired microstructures during steel casting. Here, the authors report a new fragmentation mechanism based on a phase transition at grain boundaries that can contribute to equiaxed grains.
Hideyuki Yasuda +7 more
doaj +1 more source
The Role of Photobionts as Drivers of Diversification in an Island Radiation of Lichen-Forming Fungi
Frontiers in Microbiology, 2022 Speciation in oceanic islands has attracted the interest of scientists since the 19th century. One of the most striking evolutionary phenomena that can be studied in islands is adaptive radiation, that is, when a lineage gives rise to different species ...
Miguel Blázquez +8 more
doaj +1 more source
Molecular Adaptation during a Rapid Adaptive Radiation [PDF]
Molecular Biology and Evolution, 2013 "Explosive" adaptive radiations on islands remain one of the most puzzling evolutionary phenomena and the evolutionary genetic processes behind such radiations remain unclear. Rapid morphological and ecological evolution during island radiations suggests that many genes may be under fairly strong selection, although this remains untested.
Kapralov, Maxim +2 more
openaire +3 more sources
G3: Genes, Genomes, Genetics, 2017 The independent evolution of the two toothed jaws of cichlid fishes is thought to have promoted their unparalleled ecological divergence and species richness.
C. Darrin Hulsey +5 more
doaj +1 more source
Reed bamboos drive skull shape evolution in bush frogs of the Western Ghats, Peninsular India
Ecology and Evolution, 2023 Reed bamboo is a major ecological and economic resource for many animals, including humans. Nonetheless, the influence of this plant's evolutionary role on the morphology of animal species remains unexplored.
Kalpana Das +5 more
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Polygenic adaptation from standing genetic variation allows rapid ecotype formation
eLife, 2023 Adaptive ecotype formation can be the first step to speciation, but the genetic underpinnings of this process are poorly understood. Marine midges of the genus Clunio (Diptera) have recolonized Northern European shore areas after the last glaciation.
Nico Fuhrmann +2 more
doaj +1 more source
Disincentives of organizational routines transfer
Annals of Business Administrative Science, 2019 In the case of sales and marketing organization reform discussed in this paper, organizational routines with excellent results were created. Despite visibility and standardization in a form usable for other organizations, the routines were not ...
Yoshiaki Yamashiro
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