Results 51 to 60 of about 1,371 (181)

Existence of Subharmonic Periodic Solutions to a Class of Second-Order Non-Autonomous Neutral Functional Differential Equations

Abstract and Applied Analysis, 2012
By introducing subdifferentiability of lower semicontinuous convex function φ(x(t),x(t−τ)) and its conjugate function, as well as critical point theory and operator equation theory, we obtain the existence of multiple subharmonic periodic solutions to ...
Xiao-Bao Shu, Yongzeng Lai, Fei Xu
doaj   +1 more source

FREQ‐NESS Reveals Age‐Related Differences in Frequency‐Resolved Brain Networks During Auditory Recognition and Resting State

Annals of the New York Academy of Sciences, Volume 1562, Issue 1, August 2026.
We adapted the FREQ‐NESS pipeline to event‐related MEG data from 140 adults during a melody‐recognition task, revealing an age‐related reorganization of frequency‐specific brain networks. Younger adults showed task‐related reduction in the prominence of alpha networks, whereas older adults maintained prominent slower alpha networks (8.6–10.0 Hz) across
Chiara Malvaso, Gemma Fernández‐Rubio, Mattia Rosso, Elisa Serra, Vera Rudi, Peter Vuust, Morten L. Kringelbach, Claudia Testa, Leonardo Bonetti   +8 more
wiley   +1 more source

Embodied Responses to Harmony and (Poly)Rhythm: An Integrated Ratio‐Based Perception‐Action Framework

Annals of the New York Academy of Sciences, Volume 1562, Issue 1, August 2026.
Harmony and rhythm perception are often studied separately, yet both reveal a shared sensitivity to low‐order integer ratios. In harmony, intervals like the octave (2:1) and fifth (3:2) predict consonance and ease of encoding. In rhythm, patterns with simple ratios (e.g., 2:1, 3:2) are easier to perceive, reproduce, and remember.
Nicola Di Stefano, Edward Large, Charles Spence   +2 more
wiley   +1 more source

Noninvasive Focal Gene Delivery into the Cerebellum of Non‐Human Primates using Focused Ultrasound

Advanced Science, Volume 13, Issue 37, 3 July 2026.
Focal and non‐invasive viral vector delivery in non‐human primates remains a major challenge in translational neuroscience. Low‐intensity focused ultrasound was used to transiently open the blood–brain barrier and enable targeted gene delivery to the cerebellum.
Noelia Esteban‐García, José A. Pineda‐Pardo, Inés Trigo‐Damas, Marta Gutiérrez, Marta Castillo‐Ortiz, Megan Carrillo, Alejandro Reinares‐Sebastian, Víctor Medina‐Chavarrías, Itay Rachmilevitch, Masahiko Takada, José A. Obeso, Javier Blesa   +11 more
wiley   +1 more source

Integral characteristics and distribution of roots of entire functions

Вестник Самарского университета: Естественнонаучная серия
We establish new relationships between the distribution of roots of entire functions and certain integral characteristics of the logarithms of the modules of these entire functions. These integral characteristics are constructed on the basis of arbitrary
E. B. Menshikova, B. N. Khabibullin
doaj   +1 more source

The exterior Dirichlet problem for the homogeneous complex k-Hessian equation

Advanced Nonlinear Studies, 2023
In this article, we consider the homogeneous complex kk-Hessian equation in an exterior domain Cn⧹Ω{{\mathbb{C}}}^{n}\setminus \Omega . We prove the existence and uniqueness of the C1,1{C}^{1,1} solution by constructing approximating solutions.
Gao Zhenghuan, Ma Xinan, Zhang Dekai
doaj   +1 more source

A new in silico model to precisely design focused ultrasound brain therapies

Medical Physics, Volume 53, Issue 7, July 2026.
Abstract Background Focused ultrasound (FUS) combined with microbubbles enables transient and noninvasive blood–brain barrier (BBB) opening, facilitating targeted drug delivery. However, accurate treatment planning remains difficult due to inter‐patient anatomical variability and the common assumption in simulations that brain tissues behave like water.
Allegra Conti, Marta Grossi, Patricia Cardoso De Andrade, Andrea Duggento, Nicola Toschi   +4 more
wiley   +1 more source

Complex resonance, bifurcations, and multistability of attractors induced in a gyroscope model by time-periodic phase-modulation [PDF]

AIP Advances
The rich nonlinear dynamics of a time-periodic phase-modulated gyroscope oscillator is explored using analytic perturbation methods and numerical bifurcation analysis.
O. T. Kolebaje, P. O. Adesina, U. E. Vincent, P. V. E. McClintock   +3 more
doaj   +1 more source

Tidal River Flood Risk Highest During Intermediate Rather Than Peak River Discharge

AGU Advances, Volume 7, Issue 3, June 2026.
Abstract Tidal rivers are defined as the tide‐influenced, salinity‐free inland reaches of estuaries. Understanding the occurrence of peak water levels (PWLs) is critical for flood risk management, yet the timing and magnitude of PWLs in tidal rivers have been little studied. We address this gap by investigating PWLs during two catastrophic floods (1954
Leicheng Guo, Adam T. Devlin, Ton Hoitink, Ian Townend, David A. Jay, Zheng Bing Wang, Chunyan Zhu, Hamed R. Moftakhari, Qing He, Fan Xu, Yuanyang Wan, Yuan Xu, Weiming Xie   +12 more
wiley   +1 more source

Field Observations of Intermittent Cross‐Shore Bed Load Transport on a Low‐Energy Beach

Journal of Geophysical Research: Oceans, Volume 131, Issue 6, June 2026.
Abstract Low‐energy sandy beaches typically have a rippled bed, and the presence of bed forms can strongly affect net sediment transport rates under combined forcing of waves and currents. In case low‐energetic forcing is combined with coarse sediment, bed load transport is an important mechanism to understand transport processes on such beaches.
Marlies van der Lugt, Noémie Fritsch, Matthieu de Schipper, Ad Reniers, Meagan Wengrove, France Floc'h   +5 more
wiley   +1 more source