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Concentration of local anesthetics is important in nerve blocks.
Acute Crit Care
February 2025
Department of Anesthesiology, Sree Balaji Medical College and Hospital, Chennai, India.
Intraoperative evaluation using a multimodality probe of temperature-dependent neurovascular modulation during focal brain cooling.
Clin Neurophysiol
March 2025
Department of Neurosurgery, Yamaguchi University School of Medicine, Ube, Japan.
Objective: This study aimed to assess the effects of focal brain cooling (FBC) on human brain tissue through use of multiple sensing techniques by monitoring cerebrovascular activity and brain temperature.
Methods: Intraoperative brain activity monitoring using a multimodality probe capable of measuring brain temperature, electrocorticography (ECoG) and changes in cerebral hemoglobin concentration was performed in 13 patients with refractory epilepsy. Brain temperature and neurovascular activity were measured beneath and surrounding the FBC device.
Lithogenic and anthropogenic contributions of trace metal(oid)s in coastal sediments near the Port of Trieste (northern Adriatic Sea): A geochemical normalisation approach based on regional background values.
Mar Pollut Bull
March 2025
National Institute of Oceanography and Applied Geophysics - OGS, Trieste, Italy.
Metal(oid) concentrations in coastal sediments are often due to the contribution of anthropogenic inputs to the local geochemistry. This study aims to assess the source (lithogenic or anthropogenic) of metal(oid)s in the surface sediments of the eastern sector of the Gulf of Trieste, which is the area most impacted by urban and industrial activities. A comparison with the environmental quality standards (EQSs) defined by the legislation showed that threshold levels were exceeded for Cr, Ni, Hg, Pb, As and Cd.
View Article and Find Full Text PDFMicroenvironment Tailoring for Electrocatalytic CO Reduction: Effects of Interfacial Structure on Controlling Activity and Selectivity.
J Am Chem Soc
March 2025
Department of Materials Science and Engineering, National University of Singapore, Singapore 117575, Singapore.
The performance of the electrocatalytic CO reduction reaction (CORR) is highly dependent on the microenvironment around the cathode. Despite efforts to optimize the microenvironment by modifying nanostructured catalysts or microporous gas diffusion electrodes, their inherent disorder presents a significant challenge to understanding how interfacial structure arrangement within the electrode governs the microenvironment for CORR. This knowledge gap limits fundamental understanding of CORR while also hindering efforts to enhance CORR selectivity and activity.
View Article and Find Full Text PDFGamma activity concentration from building materials: Estimation of gamma absorption and indoor radon concentration in Katsina State, Nigeria.
PLoS One
March 2025
Medical Physics and Radiation Sciences Program, School of Physics, Universiti Sains MalaysiaPenang, Malaysia.
In this research, nineteen (19) samples were collected and analyzed with the following objectives: to evaluate the activity concentration of radionuclides, assess gamma absorption, determine indoor radon concentration, and evaluate the public health impact of building materials used in Katsina State, Nigeria. The study aimed to provide critical data that would inform safe construction practices and regulatory compliance. Samples were sourced locally from various quarry sites, while materials such as cement, paint, tiles, and ceiling materials were purchased from local markets.
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