Results 71 to 80 of about 285,691 (303)
Scientific Reports, 2023 We conducted a prospective study to evaluate the prevalence of high-risk human papillomavirus (hr-HPV) positivity in women with atypical squamous cells of undetermined significance (ASC-US).
Pornporm Ittiamornlert +7 more
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Heliyon, 2023 Background: Despite the increasing reports of re-positive SARS-CoV-2 cases after recovery and discharge from hospitals, our knowledge remains very limited regarding the contributing factors of re-positivity and its roles in the transmission and ...
Mei Peng +13 more
doaj +1 more source
Total positivity of Riordan arrays
European Journal of Combinatorics, 2015 We present sufficient conditions for total positivity of Riordan arrays. As applications we show that many well-known combinatorial triangles are totally positive and many famous combinatorial numbers are log-convex in a unified approach.
Xi Chen, Huyile Liang, Yi Wang 0027
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Platinum‐based chemotherapy is known to cause severe and debilitating hearing loss, but unlike cisplatin, the true incidence of carboplatin‐induced hearing loss remains unclear. We evaluated functional hearing outcomes in children receiving carboplatin to determine the incidence and severity of ototoxicity. Procedure We identified a
Aniket Chawla +6 more
wiley +1 more source
Correlation analysis of the positivity of total periostin staining and Gleason score. [PDF]
, 2015 (A) Box plots of the positivity of periostin for the three TMAs from UCLA, (B) Box plots of the positivity of periostin for the three TMAs from UCI, (C) the positive correlation of fold changes and Gleason score using all nine TMAs.
Yuan Tian (225002) +10 more
core +1 more source
Total Positivity: an application to positive linear operators and to their limiting semigroups
Journal of Numerical Analysis and Approximation Theory, 2007 Some shape-preserving properties of positive linear operators, involving higher order convexity and Lipschitz classes, are investigated from the point of view of weak Tchebycheff systems and total positivity in the sense of Karlin [8].
Antonio Attalienti, Ioan Raşa
doaj +2 more sources
Accurate Computations with Block Checkerboard Pattern Matrices
MathematicsIn this work, block checkerboard sign pattern matrices are introduced and analyzed. They satisfy the generalized Perron–Frobenius theorem. We study the case related to total positive matrices in order to guarantee bidiagonal decompositions and some ...
Jorge Delgado +2 more
doaj +1 more source
Total Positivity of the Cubic Trigonometric Bézier Basis
Journal of Applied Mathematics, 2014 Within the general framework of Quasi Extended Chebyshev space, we prove that the cubic trigonometric Bézier basis with two shape parameters λ and μ given in Han et al. (2009) forms an optimal normalized totally positive basis for λ,μ∈(-2,1].
Xuli Han, Yuanpeng Zhu
doaj +1 more source
Sakarya Tıp Dergisi, 2018 Objective: Screening test results of the donors/ patients who applied to Blood Transfusion Center of Sakarya University Training and Research Hospital were retrospectively evaluated.Methods: A total of 13536 donors/patients who applied to our Blood ...
Hasan Ergenc +8 more
doaj +1 more source
On the totally positive grassmannian
, 2019 We give an alternative proof for the equivalence of two definitions of the totally positive grassmannian.
openaire +3 more sources