Results 91 to 100 of about 316,009 (216)

Pseudarthrosis - A pictorial essay

open access: yesJournal of Medical and Scientific Research, 2020
Pseudoarthrosis rarely presents as a diagnostic problem. However, since there are several etiologies, the specific cause may be difficult to identify. Radiologically, five morphological forms exist, although there is some overlap of these. The major form
Subbarao Kakarla
doaj   +1 more source

Extremal limits and Bañados-Silk-West effect [PDF]

open access: yesarXiv, 2016
A fascinating property of extremal Kerr black hole (BH) is that it could be act as a particle accelerator with infinite high center-of-mass (CM) energy \cite{bsw}. In this note, we would like to discuss about such fascinating result and to point out that this infinite energy at the event horizon comes solely due \emph{to the singular nature of the ...
arxiv  

Guttate leukoderma and acrokeratosis verruciformis of Hopf: a rare combination in Darier disease [PDF]

open access: yes, 2020
A distinct Darier phenotype presenting with confetti-like hypopigmented macules was first described in 1965. Designated as "guttate leukoderma," this skin finding is a rarely-reported presentation of Darier disease.
Grossman, Shoshana K   +4 more
core  

Feynman diagrams and minimal models for operadic algebras [PDF]

open access: yes, 2008
We construct an explicit minimal model for an algebra over the cobar-construction of a differential graded operad. The structure maps of this minimal model are expressed in terms of sums over decorated trees.
Chuang, J., Lazarev, A.
core   +4 more sources

A versatile engineered extracellular vesicle platform simultaneously targeting and eliminating senescent stromal cells and tumor cells to promote tumor regression

open access: yesJournal of Nanobiotechnology
Chemotherapy is an important therapeutic approach for malignant tumors for it triggers apoptosis of cancer cells. However, chemotherapy also induces senescence of stromal cells in the tumor microenvironment to promote tumor progression.
Liangzhi Gong   +9 more
doaj   +1 more source

Solitary angiokeratoma of tongue: A case report and review of the literature

open access: yesIndian Journal of Dental Research, 2018
Angiokeratoma is a benign cutaneous lesion of capillaries. It is characterized by large dilated blood vessels in the superficial dermis and hyperkeratosis of extremities.
K Santhosh Kumar   +4 more
doaj   +1 more source

Generating multivariate extreme value distributions [PDF]

open access: yesarXiv, 2012
We define in a probabilistic way a parametric family of multivariate extreme value distributions. We derive its copula, which is a mixture of several complete dependent copulas and total independent copulas, and the bivariate tail dependence and extremal coefficients.
arxiv  

Extremal dilations and their associated extremal measures

open access: yesJournal of Functional Analysis, 1976
AbstractIf μ and λ are probability measures on a metrisable compact convex set with μ < λ in the Choquet sense, then the main object of this paper is the study of the extremal structure of the convex set of all dilations carrying μ to λ. The extremal dilations are characterized and the relationships between these dilations and the extremal measures ...
openaire   +2 more sources

Multidimensional extremal dependence coefficients [PDF]

open access: yesarXiv, 2017
Extreme values modeling has attracting the attention of researchers in diverse areas such as the environment, engineering, or finance. Multivariate extreme value distributions are particularly suitable to model the tails of multidimensional phenomena. The analysis of the dependence among multivariate maxima is useful to evaluate risk.
arxiv  

A geometric characterization of the symplectic Lie algebra [PDF]

open access: yesarXiv, 2017
A nonzero element $x$ in a Lie algebra $\mathfrak{g}$ with Lie product $[ , ]$ is called extremal if $[x,[x,y]]$ is a multiple of $x$ for all $y$. In this paper we characterize the (finitary) symplectic Lie algebras as simple Lie algebras generated by their extremal elements satisying the condition that any two noncommuting extremal elements $x,y ...
arxiv  

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