Results 11 to 20 of about 366,081 (322)
Adaptive radiation therapy [PDF]
Physics in Medicine and Biology, 1997 Adaptive radiation therapy is a closed-loop radiation treatment process where the treatment plan can be modified using a systematic feedback of measurements. Adaptive radiation therapy intends to improve radiation treatment by systematically monitoring treatment variations and incorporating them to re-optimize the treatment plan early on during the ...
D, Yan, F, Vicini, J, Wong, A, Martinez
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eLife, 2022 Estimating the complex relationship between fitness and genotype or phenotype (i.e. the adaptive landscape) is one of the central goals of evolutionary biology.
Austin H Patton +4 more
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The Cambrian Explosion: macroevolution and biomineralization
Academia Biology, 2023 Recent advances in our understanding of the Cambrian evolutionary diversification event (Cambrian Explosion) show that, although eumetazoan stem taxa were present in the late Proterozoic, a tremendous burst of macroevolutionary change occurred near the ...
Mark A. S. McMenamin
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Ecology and Evolution, 2021 Biological populations may survive lethal environmental stress through evolutionary rescue. The rescued populations typically suffer a reduction in growth performance and harbor very low genetic diversity compared with their parental populations.
Dong‐Hao Zhou, Quan‐Guo Zhang
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Three-dimensional adaptive evolution of gravitational waves in numerical relativity [PDF]
, 2000 Adaptive techniques are crucial for successful numerical modeling of gravitational waves from astrophysical sources such as coalescing compact binaries, since the radiation typically has wavelengths much larger than the scale of the sources.
B. Brügmann +24 more
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Evolutionary Significance of Equinae From the Mexican Neogene
Frontiers in Ecology and Evolution, 2019 North American Equinae integrates a monophyletic clade that consists of about 20 genera and 80 species. This group includes horses with hypsodont cheek teeth belonging to the merychippines and the tribes Hipparionini, Protohippini, and Equini.
Victor Manuel Bravo-Cuevas +1 more
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On the measurement of ecological novelty: scale-eating pupfish are separated by 168 my from other scale-eating fishes. [PDF]
, 2013 The colonization of new adaptive zones is widely recognized as one of the hallmarks of adaptive radiation. However, the adoption of novel resources during this process is rarely distinguished from phenotypic change because morphology is a common proxy ...
Martin, Christopher, Wainwright, Peter
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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
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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
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Radiation Pressure in Massive Star Formation [PDF]
, 2005 Stars with masses of >~ 20 solar masses have short Kelvin times that enable them to reach the main sequence while still accreting from their natal clouds.
Klein, Richard I. +2 more
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