Results 41 to 50 of about 134,943 (269)

Digitalis and the autonomic nervous system

open access: yesJournal of the American College of Cardiology, 1985
Digitalis produces many of its effects in intact animals and human beings by modifying the properties of the autonomic nervous system. The parasympathetic limb of the autonomic nervous system is most sensitive to these effects of digitalis, and its properties are significantly altered with therapeutic concentrations of the drug.
openaire   +2 more sources

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele   +2 more
wiley   +1 more source

Ultrasound-responsive diagnostic and therapeutic micro-/nanoplatforms for biomedical applications and clinical translation

open access: yesUltrasonics Sonochemistry
Ultrasound is a widely utilized diagnostic and therapeutic tool in biomedicine due to its non-invasiveness, biocompatibility, cost-effectiveness, and high tissue penetration depth.
Wei Guo   +11 more
doaj   +1 more source

Self‐Healing and Stretchable Synaptic Transistor

open access: yesAdvanced Functional Materials, EarlyView.
A self‐healing stretchable synaptic transistor (3S‐T) is realized using a p‐PVDF‐HFP‐DBP/PDMS‐MPU‐IU bilayer as gate insulator, where dipole‐dipole interaction enhances polarization to achieve a large memory window. Leveraging its neuronal biomimicry, the synaptic transistor demonstrates electrically compatibility with the biological brain. Furthermore,
Hyongsuk Choo   +10 more
wiley   +1 more source

Solution‐Processed Two‐Dimensional Indium Oxide on Sodium‐Embedded Alumina for Reconfigurable Optoelectronic Synaptic Transistors

open access: yesAdvanced Functional Materials, EarlyView.
Wafer‐scale two‐dimensioanl In2Se3 oxidized into InOx on sodium‐embedded beta‐alumina enables multifunctional reconfigurable electronics. Sodium ions accumulate within distinct spatial distribution under drain‐controlle and gate‐controlled operation. Drain‐control operation gives controllability of ultraviolet‐driven optoelectronic synaptic conductance
Jinhong Min   +13 more
wiley   +1 more source

Is there anything “autonomous” in the nervous system?

open access: yesAdvances in Physiology Education, 2006
The terms “autonomous” or “vegetative” are currently used to identify one part of the nervous system composed of sympathetic, parasympathetic, and gastrointestinal divisions. However, the concepts that are under the literal meaning of these words can lead to misconceptions about the actual nervous organization. Some clear-cut examples indicate that no
openaire   +2 more sources

Vacuum Formed Spherical Triboelectric Architecture Overcoming Direction Constraints for 3D‐Omnidirectional Ultrasonic Energy Receiving

open access: yesAdvanced Functional Materials, EarlyView.
First vacuum formed spherical triboelectric converter for 3D‐omnidirectional ultrasonic energy receiving, with configurable DC or pulse outputs for versatile applications. ABSTRACT Ultrasound‐driven triboelectric nanogenerators (UD‐TENGs) have emerged as promising ultrasonic energy converters for underwater and biomedical applications.
Yanqin Huang   +12 more
wiley   +1 more source

Prevalence of Cardiac Autonomic Neuropathy (CAN) in Patients with Type 2 Diabetes Mellitus — the Interest of Studying Cardiovascular Autonomic Tests

open access: yesClinical Diabetology
OBJECTIVE: The objective of this study has been to investigate the prevalence of cardiac autonomic neuropathy (CAN) in patients with type 2 diabetes mellitus (T2DM) using the Ewing’s autonomic cardiovascular reactivity tests and to determine the ...
Ahlam Achchar   +6 more
doaj   +1 more source

Spatiotemporal Drug Delivery via a Neonatal Spinal Cord ECM Hydrogel for Biomimetic Microenvironment Remodeling After Spinal Cord Injury

open access: yesAdvanced Functional Materials, EarlyView.
A biomimetic hydrogel derived from neonatal spinal cord ECM (DNSCM) delivers LAMB2 protein and ISP peptide to remodel the inhibitory injury microenvironment. The system sustains drug release, upregulates pro‐regenerative LAMB2, downregulates inhibitory CSPG, and promotes axonal regeneration.
Shiyu Fu   +8 more
wiley   +1 more source

GLOBAL CHAOTIC PARAMETERS OF HEART RATE VARIABILITY DURING EXPOSURE TO MUSICAL AUDITORY STIMULATION

open access: yesРоссийский кардиологический журнал, 2017
Background: The physiological responses to auditory stimulation with music are relevant to understand and provide additional information regarding complementary and alternative therapies.Objectives: Investigate the acute effects of auditory stimulation ...
A. M. Fontes   +6 more
doaj   +1 more source

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