Results 41 to 50 of about 40,747,413 (194)

Unraveling the Fungal Community Associated with Leaf Spot on Crataegus sp.

Microorganisms, 2020
Crataegus sp. is a tree that grows in temperate zones with worldwide distribution and is commonly known in Mexico as tejocote. The use of products derived from Crataegus in traditional medicine, food, and cosmetics has increased over the last few years ...
Sonia Salazar-Cerezo, María de la Cruz Meneses-Sánchez, Rebeca D. Martínez-Contreras, Nancy Martínez-Montiel   +3 more
doaj   +1 more source

Semiclassical asymptotics of orthogonal polynomials, Riemann-Hilbert problem, and universality in the matrix model

, 1999
We derive semiclassical asymptotics for the orthogonal polynomials P_n(z) on the line with respect to the exponential weight \exp(-NV(z)), where V(z) is a double-well quartic polynomial, in the limit when n, N \to \infty. We assume that \epsilon \le (n/N)
Bleher, Pavel, Its, Alexander
core   +2 more sources

Isomonodromy aspects of the tt* equations of Cecotti and Vafa I. Stokes data [PDF]

, 2014
We describe all smooth solutions of the two-function tt*-Toda equations (a version of the tt* equations, or equations for harmonic maps into SL(n,R)/SO(n)) in terms of (i) asymptotic data, (ii) holomorphic data, and (iii) monodromy data.
Guest, Martin A., Its, Alexander R., Lin, Chang-Shou   +2 more
core   +2 more sources

Stability of the periodic Toda lattice under short range perturbations [PDF]

, 2011
We consider the stability of the periodic Toda lattice (and slightly more generally of the algebro-geometric finite-gap lattice) under a short range perturbation. We prove that the perturbed lattice asymptotically approaches a modulated lattice.
Ablowitz M. J., Bulla W., Gerald Teschl, Gohberg I., Its A. R., Its A. R., Its A. R., Krüger H., Manakov S. V., Muskhelishvili N. I., Novokshenov V. Yu., Prössdorf S., Spyridon Kamvissis, Stein E. M., Teschl G., Teschl G., Zakharov V. E., Šabat A. B.   +17 more
core   +9 more sources

Sample size requirements to evaluate policies in addiction research using interrupted time series analysis (ITS): Tools and guidance

Addiction, Volume 121, Issue 3, Page 695-712, March 2026.
Abstract Formal power calculations are rarely presented in interrupted time‐series (ITS) studies due to their technical complexity, creating a significant gap in methodological rigor. This paper aimed to make power and sample size determination more accessible for researchers, particularly in the field of addiction, by providing a suite of practical ...
Emma Beard, Jamie Brown, Lion Shahab
wiley   +1 more source

Asymptotics of the Airy-kernel determinant

, 2006
The authors use Riemann-Hilbert methods to compute the constant that arises in the asymptotic behavior of the Airy-kernel determinant of random matrix theory.Comment: 41 pages, 6 ...
Deift, P., Its, A., Krasovsky, I.
core   +3 more sources

First Report of Buchwaldoboletus lignicola (Boletaceae), a Potentially Endangered Basidiomycete Species, in South Korea

Mycobiology, 2019
During the 2014 survey of the mushroom flora of Gwangneung forest in South Korea, we collected two specimens of boletoid mushroom growing on a felled tree of Pinus koraiensis.
Jong Won Jo, Young-Nam Kwag, Sung Eun Cho, Sang-Kuk Han, Jae-Gu Han, Young Woon Lim, Gi-Ho Sung, Seung Hwan Oh, Chang Sun Kim   +8 more
doaj   +1 more source

Isolation and Identification of Endophytic Fungi of Beech Trees from some Forests in the Suburbs of Sari [PDF]

بوم‌شناسی جنگل‌های ایران, 2023
Extended Abstract Introduction and Objective: Endophytic fungi are fungi that are present in plant tissue at the time of sampling without obvious symptoms.
Shiva Zandi, Saeed Rezaee, Mohammad Ali Tajick Ghanbari, Mohammad Ali Ebrahimzadeh   +3 more
doaj  

Heterogeneity of iridoid biosynthesis in catmints: Molecular background in a phylogenetic context

Journal of Integrative Plant Biology, Volume 68, Issue 3, Page 694-718, March 2026.
Evolutionary gains and losses of key biosynthetic genes likely resulting from multiple independent evolutionary events explain why certain Nepeta (catnip) species produce both the active, cat‐attracting nepetalactones and sugar‐bound iridoids, while others make only the sugar‐bound forms, and some have lost iridoid production entirely.
Tijana Banjanac, Milica Milutinović, Dragana Matekalo, Neda Popović, Luka Petrović, Uroš Gašić, Marijana Skorić, Branislav Šiler, Tamara Lukić, Ana Stupar, Slavica Dmitrović, Jasmina Nestorović Živković, Biljana Filipović, Jelena Božunović, Miloš Todorović, Danijela Mišić   +15 more
wiley   +1 more source

Correlation functions for a strongly correlated boson system

, 1997
The correlation functions for a strongly correlated exactly solvable one-dimensional boson system on a finite chain as well as in the thermodynamic limit are calculated explicitly. This system which we call the phase model is the strong coupling limit of
A.G. Izergin, Ablowitz, Anderson, Anderson, Ban, Bogoliubov, Bogoliubov, Bogoliubov, Bogoliubov, Bullough, Carruters, Carruters, Castin, Colomo, Colomo, Essler, Imamoglu, Its, Its, Its, Its, Its, Its, Izergin, Kalish, Kitanine, Korepin, Korepin, Korepin, Korepin, Kulish, Kulish, Lenard, Lenard, Lewenstein, Luis, Lynch, Mewes, N.A. Kitanine, N.M. Bogoliubov, Wright   +40 more
core   +1 more source