Results 91 to 100 of about 24,245,874 (262)
Model stars for the modelling of galaxies: $α$-enhancement in stellar populations models [PDF]
arXiv, 2008 Stellar population (SP) models are an essential tool to understand the observations of galaxies and clusters. One of the main ingredients of a SP model is a library of stellar spectra, and both empirical and theoretical libraries can been used for this purpose.
arxiv
Predicting species distribution: offering more than simple habitat models.
Ecology Letters, 2005 In the last two decades, interest in species distribution models (SDMs) of plants and animals has grown dramatically. Recent advances in SDMs allow us to potentially forecast anthropogenic effects on patterns of biodiversity at different spatial scales ...
A. Guisan, W. Thuiller
semanticscholar +1 more source
Commissioning evaluation of a deviceless 4DCT scanner
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Background The utilization of four‐dimensional computed tomography (4DCT) for radiation therapy has not seen major advances to the method of data binning since shortly after inception. Recently there is increased interest in the utilization of an alternative binning method rather than more established techniques.
Hunter Tillery +2 more
wiley +1 more source
Hamiltonian field theoretical model for a light quark condensate [PDF]
arXiv, 2006 I propose an alternative Hamiltonian field theoretical model for a light quark condensate that is compatible with QCD in the deep infrared. Key electroweak data on flavourless pseudoscalar mesons are used for necessary renormalizations. Light quark inertial masses are redifined in a new and broader theoretical context.
arxiv
Bone‐wise rigid registration of femur, tibia, and fibula for the tracking of temporal changes
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Background Multiple myeloma (MM) induces temporal alterations in bone structure, such as osteolytic bone lesions, which are challenging to identify through manual image interpretation. The large variation in radiologists' assessments, even at expert centers, further complicates diagnosis.
Arttu Ruohola +5 more
wiley +1 more source
Correction to: A common gene drive language eases regulatory process and eco-evolutionary extensions
BMC Ecology and Evolution, 2021 Prateek Verma +2 more
doaj +1 more source
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose The study evaluates rapid linear accelerator (Linac) single isocenter stereotactic radiosurgery (SRS) with Hyperarc for large target numbers. We compared to Gamma Knife (GK), which suffers from long treatment times and investigated causes of differences. Methods Linac SRS and GK treatment plans for patients receiving 18 Gy to the gross
Abram Abdou +4 more
wiley +1 more source
Reducts of structures and maximal-closed permutation groups [PDF]
arXiv, 2013 Answering a question of Junker and Ziegler, we construct a countable first order structure which is not omega-categorical, but does not have any proper non-trivial reducts, in either of two senses (model-theoretic, and group-theoretic). We also construct a strongly minimal set which is not omega-categorical but has no proper non-trivial reducts in the ...
arxiv
, 2006 Summary 1In recent years the use of species distribution models by ecologists and conservation managers has increased considerably, along with an awareness of the need to provide accuracy assessment for predictions of such models. The kappa statistic is
Omri Allouche, Asaf Tsoar, R. Kadmon
semanticscholar +1 more source
In vivo transit dosimetry methodology for whole breast intensity modulated radiation therapy
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Background In vivo transit dosimetry using an electronic portal imaging device (EPID‐IVTD) is an important tool for verifying the accuracy of radiation therapy treatments. Despite its potential, the implementation of EPID‐IVTD in breast intensity modulated radiation therapy (IMRT) treatments has not yet been standardized, limiting its clinical
Lucia Zirone +8 more
wiley +1 more source