The hippocampus and associated cholinergic inputs have important roles in spatial memory rodents. Muscarinic acetylcholine receptors (mAChRs) are involved the communication of signals regulate memory. They been found to impact encoding process, but effect on retrieval is controversial. Previous studies report that scopolamine (a non-selective antagonist mAChR) induces cognitive deficits animals, resulting impaired encoding, less certain. We tested effects blocking mAChRs hippocampal network...

Plasmonic color filters based on the hexagonal arrangement of coaxial hole array in aluminum have been demonstrated as a promising candidate for filter development due to polarization and incident angle insensitivity. They also comprise single nanometer thick metal film, demonstrate good line width, CMOS compatibility, fine tunability. However, low transmittance limits their use potential applications such image sensors displays. This paper introduces new method increase by tuning localized...

Two major theories have been proposed to explain hippocampal function: cognitive map and the relational theories. They differ in their views on whether neurons can process non-spatial information independently. However, explanatory power of these remains unresolved. Additionally, more complex aspects neural population responses stimuli not investigated. Here, we used miniaturized fluorescence microscopy investigate mouse CA1 spatial, visual, auditory modalities, combinations. We found that...

Abstract A multispectral camera records image data in various wavelengths across the electromagnetic spectrum to acquire additional information that a conventional fails capture. With advent of high-resolution sensors and color filter technologies, imagers visible have become popular with increasing commercial viability last decade. However, imaging longwave infrared (LWIR, 8–14 μm) is still an emerging area due limited availability optical materials, sensors. Images from LWIR cameras can...

ABSTRACT Dynamical systems exhibit transitions between ordered and disordered states “criticality” occurs when the system lies at borderline these which input is neither strongly damped nor excessively amplified. Impairments in brain function such as dementia or epilepsy could arise from failure of adaptive criticality, deviation criticality may be a potential biomarker for cognition-related neurological psychiatric impairments. Miniscope wide-field calcium imaging several hundred...

In an effort to enhance the performance of trapped vortex combustion chamber, this paper improved chamber and proposed a sand dune chamber. Firstly, effects different inlet velocities equivalence ratios on two chambers were analyzed. The results showed that under same operating conditions, was better than Then, central composite design (CCD) response surface experimental method adopted optimize structure in detail. windward angle (α), leeward (θ), rear blunt body height (h) used as...

This paper presents a novel plasmonic filter design to reduce the full width half maximum (FWHM) of transmission spectrum based on hexagonal array holes with Metal-Dielectric-Metal structure for multispectral imaging applications.

[Abstract] A model that is based on the complex physical and chemical processes in operation of hybrid rocket motor able to work different operating conditions, was proposed predict flow characteristics fuel grain pyrolysis surface regression rate motors. Navier-Stokes equations coupled with species turbulence transport were applied simulate unsteady gas passage. The equation set complemented by an additional turbulent model. low-Reynolds number e − k used decrease instability heat transfer...

A rocket engine for space propulsion usually has a nozzle of large exit area ratio. The efficiency is greatly affected by the contour. This paper analysed effect constant capacity ratio in Rao’s method through design process an apogee engine. calculation results show that increasing heat can produce expansion contour smaller angle and simple modification based on thermally perfect gas assumption was made verified to be more effective. designed this much thinner section higher performance....

Reinforcement-guided decision making is the ability to choose between competing courses of action based on relative value benefits and their consequences. This process integral normal human behavior has been shown be disrupted by neurological psychiatric disorders such as addiction, schizophrenia, depression. Rodents have long used uncover neurobiology cognition. To this end, several behavioral tasks developed; however, most are non-automated labor-intensive. The recent development...

The technique of recording local field potentials (LFPs) is an electrophysiological method used to measure the electrical activity localized neuronal populations. It serves as a crucial tool in cognitive research, particularly brain regions like hippocampus and prefrontal cortex. Dual LFP recordings between these areas are particular interest they allow exploration interregional signal communication. However, methods for performing rarely described, most commercial devices either expensive...