Results 71 to 80 of about 111,774 (266)

Fractal Landscapes in Policy Optimization [PDF]

open access: green, 2023
Tao Wang, Sylvia Herbert, Sicun Gao
openalex   +1 more source

Multimodal Imaging Reveals Cerebral Microcirculation Dynamics and Mechanisms in Mouse Central Nervous System After Intranasal Infection With Recombinant Pseudorabies Virus

open access: yesAdvanced Science, EarlyView.
Multi‐modality imaging strategy applied to PRV‐induced central nervous system infection enables dynamic visualization of cerebrovascular dysfunction, including hyperemia, hypoperfusion, and vascular remodeling. These changes are linked to microglial activation and impaired angiogenesis, providing mechanistic insight into PRV neuropathogenesis and ...
Shuting Ling   +13 more
wiley   +1 more source

Computerized texture analysis of atypical immature myeloid precursors in patients with myelodysplastic syndromes: an entity between blasts and promyelocytes

open access: yesDiagnostic Pathology, 2011
Background Bone marrow (BM) blast count is an essential parameter for classification and prognosis of myelodysplastic syndromes (MDS). However, a high degree of cell atypias in bone marrow hemopoietic cells may be found in this group of clonal disorders,
Lorand-Metze Irene GH   +3 more
doaj   +1 more source

Switchable Bidirectional Sound Absorption Via Exceptional Point Modulation in Acoustic Metastructures with Interleaved Resonator Coupling

open access: yesAdvanced Science, EarlyView.
A switchable bidirectional acoustic metastructure is proposed, enabling broadband and frequency‐selective absorption via interleaved resonator coupling and exceptional point modulation. It outperforms traditional unidirectional designs, offering compact, efficient sound control from both directions and establishing a generalized framework for extending
Zichao Guo   +7 more
wiley   +1 more source

Dendritic design as an archetype for growth patterns in Nature: fractal and constructal views

open access: yesFrontiers in Physics, 2014
The occurrence of configuration (design, shape, structure, rhythm) is a universal phenomenon that occurs in every flow system. Dendritic configuration (or tree-shaped configurations) is ubiquitous in nature and likely to arise in both animate and ...
Antonio F. Miguel
doaj   +1 more source

Wearable and Implantable Devices for Continuous Monitoring of Muscle Physiological Activity: A Review

open access: yesAdvanced Science, EarlyView.
Recent advances in materials and device engineering enable continuous, real‐time monitoring of muscle activity via wearable and implantable systems. This review critically summarizes emerging technologies for tracking electrophysiological, biomechanical, and oxygenation signals, outlines fundamental principles, and highlights key challenges and ...
Zhengwei Liao   +4 more
wiley   +1 more source

Correction: Time- and cost-effective production of untagged recombinant MVA by flow virometry and direct virus sorting

open access: yesJournal of Translational Medicine, 2023
Daniela Boselli   +9 more
doaj   +1 more source

Geometrically Encoded Positioning of Introns, Intergenic Segments, and Exons in the Human Genome

open access: yesAdvanced Science, EarlyView.
This study introduces a new hypothesis: exons, introns, and intergenic segments are non‐random projections of the functional layers of 3D structure of chromatin packing domains. Evidence is presented that this “geometric code” may encode volumetric structure, reconciling epigenetic patterns, correlates with oncogenic mutations, acting as a potential ...
Luay M. Almassalha   +11 more
wiley   +1 more source

Efeito dos ácidos graxos essenciais sobre lipidemia e vascularização da membrana vitelina de codornas japonesas

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2012
Verificou-se o efeito de diferentes fontes de ácidos graxos essenciais ômega-3 e ômega-6 sobre o perfil lipídico de codornas japonesas e sobre o crescimento vascular na membrana vitelina dos embriões de aves suplementadas com óleo de peixe, 2% e 4%, e ...
J.E.S. Silva   +2 more
doaj   +1 more source

Chain Topology Engineering in Amphiphilic Block Copolymers: Crosslinking‐Induced Nanodomain Refinement for Ultrahigh Energy Density under Extreme Conditions

open access: yesAdvanced Science, EarlyView.
An amphiphilic block copolymer is constructed via self‐assembly‐induced nanoscale microphase separation. A crosslinker with dual electron‐withdrawing groups (─CF3/─O─) is introduced to refine the PEA phase domain. The crosslinking film achieves record‐high energy densities of 11.07 J cm−3 (150 °C/700 MV m−1) and 6.45 J cm−3 (200 °C/600 MV m−1) with an ...
Fuxing Zhai, Lixin Xu, Huijian Ye
wiley   +1 more source

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