Results 31 to 40 of about 44,286,818 (153)

Estimating pandemic vaccine effectiveness in two Italian regions using the screening method, 2009–2010

, 2012
The objective of this study, conducted within the I-MOVE project, was to estimate pandemic VE against laboratory confirmed cases in two Italian regions using the screening method. We calculated vaccine coverage using the number of first doses of pandemic
Bella A., Sambri V., ), Donatelli I., Rizzo C., the screening method working group, Puzelli S., Seyler T.   +7 more
core   +1 more source

Research on ferromagnetic resonance type recognition of support vector machine based on chaos theory

AIP Advances
This study presents an innovative method for identifying ferroresonant overvoltage types in power systems by integrating chaos theory with support vector machine classification.
Yuliang Zhang, Na Liu, Xiao Chen, Yujie Chen, Haozhi Qin   +4 more
doaj   +1 more source

Continuous families of solitary waves in non-symmetric complex potentials: A Melnikov theory approach [PDF]

Chaos, Solitons & Fractals, 2018
The existence of stationary solitary waves in symmetric and non-symmetric complex potentials is studied by means of Melnikov’s perturbation method.
Y. Kominis, J. Cuevas-Maraver, P. Kevrekidis, D. Frantzeskakis, A. Bountis   +4 more
semanticscholar   +1 more source

The diagnostics and laser infrastructure at the Soft X‐ray Port of the European XFEL

Journal of Synchrotron Radiation, Volume 33, Issue 5, Page 1531-1541, September 2026.
The diagnostics and laser infrastructure of the Soft X‐ray Port (SXP) at the European X‐ray Free Electron Laser are presented.The diagnostics and laser infrastructure of the Soft X‐ray Port (SXP) at the European X‐ray Free Electron Laser are presented.
Patrik Grychtol, Vahagn Vardanyan, Pranav Bhardwaj, Michael Heber, David Doblas-Jimenez, Ekaterina Tikhodeeva, Serguei Molodtsov, Manuel Izquierdo   +7 more
wiley   +1 more source

Red to Green: A Lipid Biomarker Record of Tonian‐Ediacaran Algae in Siberia

Geobiology, Volume 24, Issue 5, September/October 2026.
ABSTRACT Multiple lines of evidence point to a major diversification of Eukarya in the late Tonian period, ca. 800–720 Ma ago. Regular steranes, lipid biomarkers primarily sourced from eukaryotes, are first unambiguously reported from multiple sites. Here, we present lipid biomarker stratigraphic records from two drill‐cores from the Lena‐Anabar Basin ...
Adriana I. Rizzo, Andrey Bekker, Anton B. Kuznetsov, Victoria B. Ershova, Yijun Xiong, Karl E. Karlstrom, Simon W. Poulton, Gordon D. Love   +7 more
wiley   +1 more source

Seismic Tremor as a Precursor to Hydrothermal Explosions Near Mutnovsky Volcano (Kamchatka)

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Mutnovsky Volcano, ∼70 km SW of Petropavlovsk‐Kamchatsky, exhibits persistent degassing, hosts active hydrothermal springs and the Mutnovsky Geothermal Power Plant (MGPP) on its slopes. Using the network covariance matrix approach, we analyzed seismic data recorded in 2023–2024 by 15 seismic stations operating around Mutnovsky Volcano.
Y. Berezhnev, N. Belovezhets, N. M. Shapiro, S. Abramenkov, I. Abkadyrov, S. Yaskevich, D. Chebrov, I. Koulakov   +7 more
wiley   +1 more source

Melnikov's method with applications

, 2001
This thesis gives a detailed discussion of Melnikov's method, which is an analytical tool to study global bifurcations that occur in homoclinic or heteroclinic loops, or in one-parameter families of periodic orbits of a perturbed system.
Chow, Yan Kin
core   +1 more source

Hölder Regularity of the Solutions of Fredholm Integral Equations on Upper Ahlfors Regular Sets

Mathematical Methods in the Applied Sciences, Volume 49, Issue 12, Page 13361-13381, August 2026.
ABSTRACT We extend to the context of metric measured spaces, with a measure that satisfies upper Ahlfors growth conditions, the validity of (generalized) Hölder continuity results for the solution of a Fredholm integral equation of the second kind. Here we note that upper Ahlfors growth conditions include also cases of nondoubling measures.
Massimo Lanza de Cristoforis, Manuel Norman   +1 more
wiley   +1 more source

Lectotypifications and taxonomic changes in the holoparasitic Orobanchaceae

Nordic Journal of Botany, Volume 2026, Issue 8, August 2026.
Based on further extensive studies of specimens in various herbaria, lectotypes are designated for many taxa of holoparasitic Orobanchaceae. In particular, 47 names in the genera Boschniakia (incl. Xylanche), Cistanche, Orobanche, Phelipanche and Phelypaea are lectotypified.
Holger Uhlich, Stefan Rätzel, Óscar Sánchez Pedraja, Renata Piwowarczyk, Valerio Lazzeri, Patrice Descombes   +5 more
wiley   +1 more source

Standard CMMI Appraisal Method for Process Improvement (SCAMPI), Version 1.1: Method Definition Document

, 2018
The Standard CMMI Appraisal Method for Process Improvement (SCAMPI) is designed to provide benchmark quality ratings relative to Capability Maturity Model Integration (CMMI) models.
Assessment Method Integrated Team (5408057)
core   +1 more source